Monday, November 25, 2019

Triangle Shirtwaist Factory Fire - The Aftermath

Triangle Shirtwaist Factory Fire - The Aftermath The Triangle Shirtwaist Factory Fire in 1911 was one of the most infamous industrial tragedies in American history. On a Saturday afternoon, a fire broke out in a clothing factory. While many were able to escape, the workers on the ninth floor were not alerted to the fire in time, and because there was only accessible door - locked from the outside to prevent theft or unauthorized breaks - most workers in that area were trapped by the fire. Firefighting efforts were not enough to save the ninth floor: the hoses could not work fast enough, and escape ladders did not reach high enough. The buildings elevator operators managed to make a few trips up to rescue workers before the heat warped the structure too much, but those were the only workers able to escape. 146 people died in the fire (mostly women) and there was an immediate uproar about the conditions that had led to the fire and the massive death toll. After the Fire: Identifying the Victims Bodies were taken to the Charities Pier on 26th Street at the East River. There, starting at midnight, survivors, families, and friends streamed past, trying to identify those who had died. Often, the corpses could only be identified by a dental filling, or shoes, or a ring. Members of the public, perhaps drawn from a morbid curiosity, also visited the makeshift morgue. For four days, thousands streamed through this macabre scene. Six of the bodies were not identified until 2011, almost 100 years after the fire. After the Fire: Newspaper Coverage The New York Times, in its March 26 edition, reported that 141 Men and Girls had been killed. Other articles featured interviews with witnesses and survivors. The coverage fed the publics growing horror at the event. After the Fire: Relief Efforts Relief efforts were coordinated by a Joint Relief Comittee, organized by Local 25 of the ILGWU, the Ladies Waist and Dress Makers Union. Participating organizations included the Jewish Daily Forward, United Hebrew Trades, Womens Trade Union League, and the Workmens Circle. The Joint Relief Committee also cooperated with efforts of the American Red Cross. Relief was provided to help survivors, and also to help families of the dead and injured. In a time when there were few public social services, this relief effort was often the only support for the survivors and families. After the Fire: Memorial at the Metropolitan Opera House The  Womens Trade Union League (WTUL), in addition to its help with the relief effort, pressed for an investigation of the fire and conditions that led to  the large number  of deaths, and also planned a memorial. Anne Morgan and Alva Belmont were the main organizers, and most in attendance were workers and wealthy supporters of the WTUL. Held on April 2, 1911, at the Metropolitan Office House, the Memorial Meeting was marked by a speech by ILGWU and WTUL organizer, Rose Schneiderman. Among her angry remarks, she said, We have tried you good people of the public and we have found you wanting.... She noted that There are so many of us for one job it matters little if 146 of us are burned to death. She called for workers to join in union efforts so that workers themselves could stand for their rights. After the Fire: Public Funeral March The ILGWU called for a citywide day of mourning for the day of the funeral of the victims. More than 120,000 marched in the funeral procession, and some 230,000 more watched the march. After the Fire: Investigations One result of the public outcry after the Triangle Shirtwaist Factory fire was that the New York governor appointed a commission to investigate factory conditions - more generally. This State Factory Investigation Committee met for five  years,  and proposed and worked for many legal changes and reform measures. After the Fire: Triangle Factory Fire Trial New York City District Attorney Charles Whitman decided to indict the owners of the Triangle Shirtwaist Factory on charges of manslaughter, on the grounds that they had known that the second door was locked. Max Blanck and Isaac Harris were indicted for manslaughter in April 1911, as the D.A. moved swiftly. The trial was held over three weeks, beginning on December 4, 1911. Ultimately, jurors determined that there was reasonable doubt whether the owners knew that the doors were locked. Blanck and Harris were acquitted. There were protests at the decision, and Blanck and Harris were re-indicted. But a judge ordered them acquitted on the grounds of double jeopardy. Civil suits for wrongful death were filed against Blanck and Harris on behalf of those who had died in the fire and their families - 23 suits total. On March 11, 1913, nearly two years after the fire, these suits were settled for a total of $75 per victim. In comparison, the company received about $400 per victim from their insurance company, which totaled more than $60,000 more than the reported losses.

Thursday, November 21, 2019

Environmental Economy Essay Example | Topics and Well Written Essays - 500 words

Environmental Economy - Essay Example The Catholic Church, through its top leader, the Pope will also participate in the debate and give its stand on the regarding global warming (Rocca n.p). The other participants will be shareholders of various companies to address issues concerning carbon emissions through its reduction. Many big investors are now taking global warming with a lot of seriousness and considerations. The oil mining and coal mining companies will set rules that give a limit of the emissions while putting a consideration of keeping the cost of oil and natural gas low to avoid creating low demand. Change in behavior has encouraged the executives of big companies to support climate change and are now raising the issue unlike before. Environmental and natural economics deals with the principles of economics with respect to the management of the environment and natural resources and the way they are affected by pollution. The article relates to economics in various ways since economics can explain on ways of shifting towards the use of low carbon fuels at low cost. Policy intervention, especially on behavioural economics, is vital for environmental conservation, which the article aims at achieving. Environmental conservation and reduction of global warming requires a lot of money to implement the policies, but the benefits are desirable. Various economic outcomes arise from the environmental policies that tend to address carbon emissions such as high productivity, innovation stimulation, the creation of employment, and the improvement in the balance of trade. Controlling the use of the fossil fuels is essential for reducing global warming and environmental conservation. The article should have addressed the importance of phasing out all the environmentally harmful subsidies and encouragement of good practices to help in minimizing the usage of carbon fuels. The private sector can help a lot in lowering global warming as most of the emissions come from private

Wednesday, November 20, 2019

The Effects of Technology on the Accounting Profession Essay

The Effects of Technology on the Accounting Profession - Essay Example Technologies of inter connectivity has led a high degree of cooperation in exchange of data. Accounting soft wares have brought revolution in accounting and finalization of financial statements. Every time a transaction is proceed into accounting software all accounting activities till preparation of financial statements are performed by the software. Financial statements are available for analysis with every transaction processed. Non- customized soft wares are available for general accounting but large businesses and even some SMEs, like the organization I am associated with, get accounting software customized as per their requirements. Certain areas of core accounting have been immensely affected by Information Technology like preparation of payroll records, calculations and withholding of tax deductions, filing of payroll and tax returns, invoicing, tracking accounts receivables, on line bank transfers, and many others. Information technology has evolved such B2B (business to business) systems that work effectively despite complexities involved. In fact my organization has made such a system as part of Enterprise Resource Planning (ERP) system. Bills are generated and payments are electronically processed through EBPP (Electronic Billing Presentation and Payment) systems, and accounting of such transactions is facilitated as soon as the bills are generated. One can imagine the impact of speed, accuracy, and savings affected by EBPP system on the accounting systems. Internet has opened lot of opportunities for small accounting firms through business processing operations. Accounting out sourcing is the invention of technological developments that has helped both CPA professional who is providing the work of his client by outsourcing it to other accounting professional who is receiving the outsourced assignment. The point is that at both ends, the provider and the

Monday, November 18, 2019

Chicano Studies (Latino Narrative Film-1990 to present) Essay - 1

Chicano Studies (Latino Narrative Film-1990 to present) - Essay Example Another striking attribute of most Latin American movies is the political, economic, and social situation that prevailed in the country at the period they were created (Elena, Lopez & Salles 2004). The status of Latin American film at present is that of a sequence of average to small, at times minuscule, national movie industries, every one of them burdened with small markets and structural limitations, but teeming with imagination, talent, and creativity (Elena et al. 2004). It is also a film industry with a moving and proud history of artistry and political revolution. It is previously mentioned, among Latin American directors themselves, that they did not constantly have excellent scripts, that scripts were a weak spot and that their creation was a filmmaker’s cinema (Noriega 2000). Today they commonly recognize a different dilemma: the absence of efficient producers, who know how to build up the finance, bring the needed people together, and form a production. Nevertheless, this in turn is indicative of a bigger problem. Making a feature film is mostly a kind of organized chaos, which necessitates a strong foundation (Hart 2004). Without the types of equipment which can be undervalued only in highly industrialized economies, I have frequently thought that to succeed in creating a film in several parts of Latin America is a negligible wonder. This essay will argue that contemporary Latin American cinema does not remove form from content, but give characters murkiness and strength, affection, life and death through comparing the Andres Wood’s Machuca and Guillermo del Toro’s Pan’s Labyrinth. Latin American cinema becomes successful in reaching its target audience not through amazing special effects, but through building on human qualities such as courage, compassion, beauty, violence, and evil. What was specifically dreadful about the takeover of

Saturday, November 16, 2019

Enhanced Oil Recovery By In Situ Combustion Environmental Sciences Essay

Enhanced Oil Recovery By In Situ Combustion Environmental Sciences Essay Enhanced oil recovery is oil recovery by the injection of materials not normally present in the reservoir. In situ Combustion (ISC) is the process of an enhanced oil recovery process to improve the recovery of heavy crude oil. As it is the oldest thermal recovery technique, it has been used for over nine decades with many economically successful projects. Nevertheless, it is regarded as a high-risk process by many, primarily because of many failures of early field tests. Most of those failures came from application of a good process (ISC) to the wrong reservoirs or to the poorest prospects. This paper contains a description of ISC, a discussion of laboratory screening techniques, an illustration of how to apply laboratory results to field design, a discussion of operational practices and problems, and an analysis of field results. For complete review, the case study is done on Balol and Santhal fields in Mehsana. In-situ combustion has been known since 1888. Mendeleev was the first scientist to suggest the in-situ conversion of coal into combustible gases. Based on the earlier laboratory results, Sheinman and Dubrovai in 1934 proposed the processed the process of oil displacement by means of a moving underground fire-front. A number of field tests, were performed in various regions in the late 1940s and early 1950s. The results from these tests indicated that the heat losses were large, therefore the injected hot gases reached the formation zone with zero thermal energy. These studies however were followed by laboratory research field tests and development of mathematical models to simulate in-situ combustion as a result of which this process has been recognized and can be used as a promising method of recovering heavy oil from petroleum reservoirs. The principle of in-situ combustion is to achieve combustion within the pores of hydrocarbon-bearing reservoir, burning part of the oil in place in order to improve the flow of the unburned part. Combustion is supported by the injection of air into the reservoir at one or more wells. The heat generated during combustion is sufficient to raise the rock to a high enough temperature to enable the combustion front to self propagate after initial ignition by increasing mobility of the fluid. Methodology The in-situ combustion process was applied to petroleum reservoirs depending on wide range of characteristics like Nature of formation, depth, temperature, reservoir thickness, permeability, porosity and oil saturation in order to recover oil. Pressure is also a factor but not much critical. The process was applied in reservoirs with average permeability ranging from 40 to 8000mD, whereas the oil saturation varied from 25 to 95%. In addition fuel content is one of the most important factors influencing the success of a fireflood process. The fuel content of the reservoir is the amount of coke available for combustion that is deposited on reservoir rock as a result of distillation and thermal cracking. If the fuel content is too low, the combustion process in the reservoir cannot be self sustained. Moreover, a high fuel content requires a large amount of air and high power cost which means low oil production. Gates and Ramey (1980) compared the estimated fuel content by various methods including laboratory results with that of field project data. It has been shown that fuel content determined experimentally in the laboratory by tube -run method can provide a reasonably good estimation of the fuel content obtained in the field. In situ combustion is basically injection of an oxidizing gas (air or oxygen-enriched air) to generate heat by burning a portion of the resident oil. Most of the oil is driven towards the producers by a combination of gas drive (from the combustion gases), steam and water drive. This process is also called fire flooding to describe the movement of a burning front inside the reservoir. Based on the respective directions of front propagation and air flow, the process can be forward, when the combustion front advances in the same direction as the air flow, or reverse, when the front moves against the air flow. Reverse Combustion This process has been studied extensively in laboratories and has been field tested. In brief, it has not been successful economically for two major reasons. First, combustion started at the producer results in hot produced fluids that often contain unreacted oxygen. These conditions require special, high-cost tubular to protect against high temperatures and corrosion. More oxygen is required to propagate the front compared to forward combustion, thus increasing the major cost of operating an in situ combustion project. Second, unreacted, coke-like heavy ends will remain in the burned portion of the reservoir. At some time in the process the coke will start to burn and the process will revert to forward combustion with considerable heat generation but little oil production. This has occurred even in carefully controlled laboratory experiments. In summary reverse combustion has been found difficult to apply and economically unattractive. Forward Combustion Forward combustion can be further characterized as dry when only air or enriched air are injected or wet when air and water are co-injected. Dry Forward Combustion The first step in dry forward ISC is to ignite the oil. In some cases auto-ignition occurs when air injection begins if the reservoir temperature is fairly high and the oil reasonably reactive. Artificial Ignition has been induced using down hole gas burners, electrical heaters, and/or injection of pyrophoric agents or steam injection. Figure : schematic illustration of the in-situ combustion process (Source) After ignition the combustion front is propagated by a continuous flow of air. As the front progresses into the reservoir, several zones exist between injector and producer as a result of heat and mass transport and the chemical reactions. The above figure is an idealized representation of the various zones and the resulting temperature and fluid saturation distributions. In the field there are transitions between zones. A. The burned zone is the volume already burned. This zone is filled with air and may contain small amounts of residual unburned organic solids. As it has been subjected to high temperatures, mineral alterations are possible. Because of the continuous airflow from the injector, the burned zone temperature increases from injected air temperature at the injector to combustion front temperature at the combustion front. B. The combustion front is the highest temperature zone. It is very thin, often no more than several inches thick. It is in this region that oxygen combines with the fuel and high temperature oxidation occurs. The products of the burning reactions are water and carbon oxides. The fuel is often misnamed coke. In fact it is not pure carbon but a hydrocarbon with H/C atomic ratios ranging from about 0.6 to 2.0. This fuel is formed in the thermal cracking zone just ahead of the front and is the product of cracking and pyrolisis which is deposited on the rock matrix. The amount of fuel burned is an important parameter because it determines how much air must be injected to burn a certain volume of reservoir. C/D. The cracking/vaporization zone is downstream of the front. The crude is modified in this zone by the high temperature of the combustion process. The light ends vaporize and are transported downstream where they condense and mix with the original crude. The heavy ends pyrolize, resulting in CO2 , CO, hydrocarbon gases and solid organic fuel deposited on the rock. E. The steam plateau. This is the zone where some of the hydrocarbon vapors condense. Most of those condense further downstream as the steam condenses. The steam plateau temperature depends on the partial pressure of the water in the gas phase. Depending on the temperature the original oil may undergo a mild thermal cracking, often named visbreaking that usually reduces oil viscosity. F. A water bank exists at the leading edge of the steam plateau where the temperature is less than steam saturation temperature. This water bank decreases in temperature and saturation downstream, with a resulting increase in oil saturation. G. The oil bank. This zone contains most of the displaced oil including most of the light ends that result from thermal cracking. H. Beyond these affected areas is the undisturbed original reservoir. Gas saturation will increase only slightly in this area because of the high mobility of combustion gases. Wet Forward Combustion A large amount of heat is stored in the burned zone during dry forward in situ combustion, because the low heat capacity of air cannot transfer that heat efficiently. Water injected with the air can capture and advance more heat stored in the burned zone. During wet combustion injected water absorbs the heat from the burned zone, vaporizes, moves through the burning front and condenses, expanding the steam plateau. This results in faster heat movement and oil displacement. Depending on the water/air ratio, wet combustion is classified as: (1) incomplete when the water is converted into superheated steam and recovers only part of the heat from the burned zone, (2) normal when all the heat from the burned zone is recovered, and (3) quenched or super wet when the front temperature declines as a result of the injected water. ISC requires particular attention to air compression, ignition, well design, completion, and production practices. Air compression causes high temperatures because of the high c p / cv ratio of air. Compressor design must consider these high temperatures to ensure continuous, sustained operations free from the corrosive effects of air and the explosion hazards of some lubricating fluids. Mineral oils are not recommended. Synthetic lubricants withstand the higher temperatures and offer lower volatility and flammability than conventional lubricants. In order to achieve the combustion in the petroleum reservoir, mainly Spontaneous ignition and Artificial ignition are the two methods that are used for heavy oil recovery. Ignition can occur spontaneously if the oil is reactive, the reservoir temperature high enough, and the reservoir is reasonably thick. Down hole gas-fired burners allow good control of the temperature of injected gases and may be operated at a greater depth than other methods. The disadvantages include the need to run multiple tubing strings in the injection wells. Catalytic heaters run at lower temperatures but are expensive. Electrical heaters can be lowered with a single cable, and can provide excellent temperature control. They can be reused repeatedly. There is, however, a depth limitation because of electrical power losses in the cable. Chemically enhanced ignition may require handling and storage of dangerous materials. Steam may be used to locally increase reservoir temperature and facilitate auto ignition . It suffers from depth limitation because of wellbore heat losses, but when the conditions are right it can be a very simple and effective method for ignition. Combustion process was also employed as primary and tertiary recovery processes. Applications In situ combustion can be applied to many different reservoirs. Some suggested screening guidelines are: Nature of the Formation : The rock type is not important provided that the matrix/oil system is reactive enough to sustain combustion. As in any drive process, high permeability streaks are detrimental. Swelling clays may be a problem in the steam plateau area. Depth: Depth should be large enough to ensure containment of the injected air in the reservoir. There is no depth limit, except that this may affect the injection pressure. Pressure: Pressure will affect the economics of the process, but does not affect the technical aspects of combustion. Temperature: Temperature will affect auto ignition but is otherwise not critical. Reservoir Thickness: Thickness should be greater than about 4m (15 ft) 2,3 to avoid excessive heat losses to surrounding formations. Very thick formations may present sweep efficiency problems because of gravity override. Permeability: This has to be sufficient to allow injection of air at the designed air flux. The air injectivity is especially important for heavy oil reservoirs. Conditions are favorable when kh /ÃŽÂ ¼ is greater than about 5md m/cp.3 Porosity and Oil Saturation: These have to be large enough to allow economic oil recovery. The product, à Ã¢â‚¬   So , needs to be greater than 0.08 for combustion to be economically successful. Oil Gravity: This parameter is not critical. Insitu viscosity has to be low enough to allow air injection and resulting oil production at the design rate. Oil Nature: In heavy oil projects the oil should be readily oxidizable at reservoir and rock matrix conditions. The laboratory experiments can also determine the amount of air needed to burn a given reservoir volume. This is key to the profitability of the process. Current Status of In-Situ Combustion The in-situ combustion process is attractive economically, provided it is applied to petroleum reservoirs containing approximately 50% oil saturation. The fuel content is one of the important parameters for combustion support at a relatively low air/oil ratio. Although laboratory experiments can provide some basic understanding of the process, the primary evaluation factor is a field application before the process is employed on a large scale. The present status of oil production by in-situ combustion in the United States is nearly 11,000 bbl/day. The commercial dry ISC project at Romania is the largest project of its kind and it has been in operation for more than 34 years. The Balol and Santhal projects in India have been in operation for more than seven years and have been applied in a wet mode. Currently, combined all these three projects produce approximately 2300m3 /day. It is likely that very little laboratory research can be performed to improve the displacement efficiency of this process. With continued improvement of the in-situ combustion technology, it is almost certain that some form of this process, such as dry, wet, and partially quenched combustion, will find greater application in the coming years. Currently, commercial In situ combustion projects are Economic Evaluation It is recognized that the success or failure of an enhanced oil recovery process depends on the economic evaluation. An economic study completed by Wilson and Root (1966), which is based on a modified form of two-dimensional model presented by Chu, compares the cost of heating a reservoir. The cost comparison was studied for a reservoir either in the presence of steam injection or forward combustion without oil production. The main consideration was to determine heating cost of the same dimensions of a reservoir by either steam injection or by forward combustion. The following conclusions were drawn from this study; (1) Combustion is favored over steam injection as the sand thickness decreases the pressure increase. (2) As the coke deposition increases, steam injection is favored over the combustion process. (3) As the heated distance in the reservoir increases, reservoir heating by combustion is more favorable as compared to steam injection. (4) Decreased injection rated favors the cost of steam injection relative to air. (5) Increased wellbore losses with increasing depth favor combustion. Conclusions It has been shown that in-situ combustion process is suitable to displace oils of gravities greater than 10 degree API. The average oil recovery by employing in-situ combustion is 50%. The major amount of oil is recovered before breakthrough of the combustion zone. For heavy oils, about 50% crude oil recovery occurs after breakthrough, whereas low-viscosity oil production declines very rapidly following breakthrough. The breakthrough of combustion zone can be recognized by an increase in gas production and its oxygen content. This is followed by a sharp increase ranging from 100 degree to 200 degree Fahrenheit in bottom hole temperature. In addition, the increase in water cut of the produced oil also indicates the breakthrough of the combustion zone. At the same time, pH of the produced water decreases, which is usually due to increase in the content of ions such as iron and sulphate. CASE STUDY IN-SITU COMBUSTION AT MEHSANA, GUJARAT. Mehsana asset, located in the northern part of Gujarat state in India is the highest oil producing onshore asset of ONGC with annual crude oil production of 2.35 MMT. Its having oil fields producing both heaviest crude and the lightest crude in India with API gravity ranging from 13ËÅ ¡ 42ËÅ ¡. Balol and Santhal fields form a part of this heavy oil belt with a API gravity 15ËÅ ¡-18ËÅ ¡. Balol and Santhal field encompass 22.17 MMT and 53.56 MMT of oil in place respectively. The crude is asphaltic in nature containing 6-8% asphaltene and the oil viscosity ranges from 50-450 cps at reservoir pressure of 100 kg/cm ² and 70ËÅ ¡ C temperature. Reservoirs have the permeability of the order of 3-8 darcies and are operating under active water drive. Subsequent Artificial lift methods resulted into high water production than oil. In many wells it became 95-100% and some wells had to be closed due to high water cut. The poor primary and secondary necessitated for In- Situ combustion technique in these fields. Exploitation of heavy oil from these heavy oil fields was a challenge for Mehsana asset. Based on results of laboratory studies, the In-situ combustion process was identified as the most suitable technique for enhancing the recovery from these fields. PILOT SCHEME A pilot test was designed and initiated in 5.5 acre area of southern part of Balol field in 1990-91. The first well CP#10 and thereafter Balol#171 were ignited with the help of foreign experts. The sustained combustion and production gain from nearby producers lead to conceptualization of the commercialization schemes in entire Balol field. In another attempt, a pilot scheme was also designed for Lanwa oil field and an inverted five slot pattern with four producer wells had been ignited in 1992. At present the commercialization of the scheme is in progress to enhance the production from the field. A pilot scheme is also running since 2002 in Bechraji field with four EOR injectors. COMMERCIAL SCHEMES Based on the techno-economic success of Balol Pilot project, commercial schemes were designed for entire Balol field for exploitation of heavy oil. Considering the similarities between the Balol and Santhal oil fields, this EOR technique has been implemented on a commercial scale in 1997 both at Balol and Santhal fields. Presently four commercial schemes viz. Balol Ph-1, Santhal Ph-1, Balol Main and Santhal Main are running successfully. Till date total 61 wells have been ignited in Balol and Santhal under these commercial schemes. More wells are in line for conversion into EOR injectors. For commercial exploitation of Balol and Santhal fields using In-situ combustion technique, four major air compressor plants, two, each in Balol and Santhal fields were set up. These plants supply compressed air to injector wells at reservoir conditions. Compressors except emergency air compressors at all the plants run on electricity. Combined installed capacity of these four plants is of compressing 4.9 NMm3/day air at maximum pressure of 123 Kg/cm2. Since water is required to be injected subsequently during wet phase, facilities for water treatment and injection are also installed in the respective plants. All these four plants are connected to each other with an integrated air grid network for better utilization of resources. A mobile unit called Ignition trailer is being used to initiate ignition process. Gas burners are used for artificial ignition in Mehsana. RESULTS After implementation of the technique, decline in production from Balol and Santhal fields was arrested. A number of wells have started flowing on self which were in artificial mode prior to in-situ combustion process. Production testing data of affected wells show the gradual increase in liquid production and decrease in water cut resulting increase in net oil production. Presently EOR gain from both the fields in the tune of 1200 TPD and air injection is in tune of 1.4MM Nm3/d. Production performance of these fields shows the gradual increase in oil production and decrease in W/C% with increasing number of injectors/air injection rate. It has not only given a new lease of life to Balol and Santhal fields but has also increased the oil recovery factor by 2-3 folds from 6-13% to 39-45%. OTHER HIGHLIGHTS OF THE PROJECT ONGC is one of the few organizations in the world, which has taken up In-situ combustion process on such a large scale. Total 68 wells have been converted in EOR injectors at Mehsana Asset so far. Most of the EOR injectors are old producer wells. They have been converted to injector wells after proper washing and cleaning of wells. Ignition is being done in the reservoir at an average depth of 990 meters, having 100 Kg/cm2 pressure and 70 degree Celsius temperature. Present Air-Oil ratio in these fields is about 1160 Nm3/m3 and Air-Oil ratio on cumulative basis it stands at 985 Nm3/m3, which indicates quite good efficiency of ISC process. Figure : Production profiles of Santhal and Balol fields (Source) MAJOR ISSUES Occurrence of Auto-Ignition: In Mehsana Gas burner is being used for artificial ignition. In this method air is injected through the annulus and natural gas through tubing. An aluminum plug fitted at the tip of burner prevents air and gas to mix. The plug pops out when gas injection pressure is more than air injection pressure and forms gas-air mixture at the bottom. A pyrophoric chemical is being used to initiate the flame. At well no. Balol # A on 1998 the burner caught fire without lowering pyrophoric liquid. Burner temperature shot up to 910 degree Celsius and was soon controlled by ignition tem members. There was no damage to thermocouple and down-hole assembly in this well. After this incidence auto ignition occurred successively in another three wells. In last two wells Santhal #B and Balol # C, thermocouple got damaged. Ignition experts were unable to establish the reason and remedy for auto ignition. Due to this failure, ONGC had completely suspended all the ignition operations fearing further auto igni tion and damage to thermocouple. A close study of all four cases of auto ignition revealed that gas injection was used to be done at full discharge rate of gas compressor. Due to this sudden release of huge amount of gas, a very rich mixture of air and gas forms making situation vulnerable for auto ignition. To overcome this problem, ignition team came up with an idea to put a cushion of an inert gas in the tubing before starting gas injection. At the time of plug pop up, now this inert gas release first afterwards natural gas comes in contact with air. This cushion provide ample time between plug pop up and release of natural gas which facilitate in regulating the gas injection rate to prevent formation of unwanted combustible mixture. The whole idea was put up before the management which was promptly agreed and broke the dead lock of suspended ignitions. After adoption of this technique till date no case of auto ignition encountered. EFFECTIVE UTILIZATION OF AIR COMPRESSOR Compression of air at high pressure is a costly affair because of huge consumption of electricity. To minimize this wastage of energy and for optimize the utilization of air compressors, it was thought to connect all the four plants with a common air grid. Subsequently the air grid was constructed using 6 and 4 dia pipelines as required. Now compressors are being run as per the total air requirement. By using this grid, on an average INR 2.0 Crores per month (USD 5.3 million per annum) are being saved as electricity charges. FAILURE OF AFTER COOLER OF AIR COMPRESSOR Running of large air compressor is difficult in India especially during summer due to high temperature. It may lead to explosion at compressed air piping due to accumulation of carryover lubricants and high discharge temperature. Two incidents of bursting of 3rd stage (Final stage) after coolers of HP compressor had taken place at a compressor plant of Santhal field. As a remedy synthetic lubricant has been introduced. Further regular chemical cleaning of the lines is being carried-out and monitoring of operational parameters has been intensified. OOZING OF AIR/FLUE GASES In Mehsana, mostly old wells were used for injection as well as for production. In some cases failure of casing or cementation have observed and has caused pressure built-up in outer casing and even in some cases oozing of gases/air from well site has also been observed. The remedies are 1) New additives for cementation (like thermal cements and calcium aluminates) have been introduced which help to withstand higher temperatures. 2) It is recommended to cement the casing to the full depth in case of new injector wells to prevent the risk of coming out of gas into overlying permeable layers. 3) It is suggested by IEOT (ONGC Institute) to have casing of API 5CT L-80 13 Cr steel in new injector wells and tubing in all wells. 4) New injector wells are being drilled to suit specially for in-situ combustion. 5) Regular monitoring of injection pressure, annulus pressure and outer casing pressure. Research Work Figure : showing the working model made in the laboratory The working model for the In situ combustion was made in laboratory. In this model Injection well and the production well is present on the left and right side respectively, gas injection at high pressure, igniter is taken as the kitchen lighter, test tube is made as an artificial reservoir and ignition zone near the artificial reservoir and also the temperature showing device at the bottom of the production well. This model can be compared to the real conditions with the help of the following diagram. Figure : In situ combustion process (source) There were many challenges during the modeling. These challenges were faced according to the need, economy and the factors available. For example reservoir simulation was not perfect, combustion zone was not able to be built exactly in the pores due to lack of oxygen supply. Hence I discover that this process is very economical as compared to other EOR processes but it is very risky as injection of gas should be done at correct place and ignition should be controlled then this process acts as magic recover the oil to 65%. I was successful in recovering the oil but the simulation problem was a main constraint of this working model as that requires a whole laboratory for its working. Hence according to my research heat loss should be minimum, combustion should be in controlled manner are the major challenges that should be overcome. And these can be overcome by calculating the area in which injection is to be done and what should be the ignition system use for ignition (whether a chemical can be used, artificial igniter at the combustion can be used or if the temperature of the bottom of the hole is very high that can give spontaneous ignition) should be preplanned according to the condition. The latest and important factor is the chemical injection to ignite the heavy crude oil, let us suppose the oil present there is very heavy oil that cannot be directly ignited; for that situation a chemical can be injected inside which will burn first and then increases the temperature of the respective zone to such an extent that the oil present there will ignite and the further process should start.

Wednesday, November 13, 2019

Databases :: essays research papers

databases The Many Faces of Databases Large databases can contain hundreds of interrelated files. Fortunately a database management system can shield users from the complex inner workings of the system, providing them with only the information and commands they need to get their jobs done. In fact, a well-designed database puts on different faces for different classes of users. Downsizing and Decentralizing The earliest file management programs could only do batch processing, which required users to accumulate transactions and feed them into computers in large batches. These batch systems weren't able to provide the kind of immediate feedback we expect today. Today disk drives, inexpensive memory, and sophisticated software have allowed interactive processing to replace batch processing for most applications. Users can now interact with data through terminals, viewing and changing values in real time. Batch processing is still used for printing periodic bills, invoices, and reports and for mak ing backup copies of data files. But for applications that demand immediacy, such as airline reservations, banking transactions, and the like, interactive, multiuser database systems have taken over. Until recently most databases were housed in mainframe computers. But for a growing number of organizations, the traditional centralized database on a mainframe system is no longer the norm. Some companies use a client/server approach: Database software in client desktop computers works with files stored in central server databases on mainframes, minicomputers, or desktop computers. Other companies use distributed databases that use data strewn out across networks on several different computers. From the user's point of view, the differences between these approaches may not be apparent. Tomorrow's Databases? Many computer scientists believe that the relational data model may be supplanted in the next decade by an object-oriented data model, and that most future databases will be object- oriented databases rather than relational databases. Instead of storing records in tables and hierarchies, object-oriented databases store software objects that contain procedures (or instructions) along with data. Object-oriented databases often are used in conjunction with object-oriented programming languages. Tomorrow's databases will be able to respond intelligently to commands and queries issued in natural human language. Rules of Thumb: Dealing with Databases A few common-sense rules when working with file managers or relational database management systems are: o Choose the right tool for the job. o Think about how you'll get the information out before you put it in. o Start with a plan, and be prepared to change it.

Monday, November 11, 2019

In My Fathers Den Essay

In my Fathers Den, a brilliant example of subjective filmmaking and credit should be given to the director Brad McGann for successfully developing a character who takes a journey through regression. McGann uses a series of flashbacks for Paul to revisit the traumatic past and then back to the obscure present to deal with the outcome of his memories. Brad McGann develops the character Paul, as a man who is lonely and isolated yet mystifying and secretive. He blocks out his emotions completely which makes the audience intrigued to find out what has happened in his past that has made him the enclosed character he is today. The story includes themes found familiar to many New Zealand films, dark family secrets, small-town claustrophobia, the lure of the outside world. â€Å"It’s not so much a whodunit† said McGann, â€Å"but a whydunit†. The film is as much about tone as plot, eloquently describing a world of emotionally damaged characters isolated from each other in stark landscapes. The theme of escapism is consistently grabbing the audiences attention throughout McGann releases details sparingly, constructing his film as a kind of puzzle assembled from pieces of the past and present, with Prior’s attempts to forget his younger days. His use of camera movement adds new information, as flashbacks play a large role in this film. McGanns ability to stitch material together is significant as he doesn’t signal the shift between time periods heavy-handedly, and yet its always clear what is happening and how each new snippet of information contributes to the complex. McGanns use of cinematography is a great example of successful director skills. The use of camera angles and lighting effeteness on the film help create a mood to demand the audiences attention to discover the true identity of each character. McGanns panning of the den, prepares the audience with a flashback, and as a small boy (Paul) with his father the lighting of warmth is portrayed with the effeteness of connection and close feeling with the young boy and his father. Celia’s grief as she console’s Paul for the truth, the warmth of the fire light against Paul’s face makes the audience devoted to feel sorry for him and feel his pain. McGanns successful use of director skills impacts the audiences views on the film â€Å"In my Fathers Den†. This film is carefully crafted, as it is a dialogue for ironic social comment and characters.

Saturday, November 9, 2019

Bald Soprano essays

Bald Soprano essays The playwright, Eugne Ionescos , first play, La Cantatrice Chauve translated into The Bald Soprano in 1956 is considered to have founded the movement known as the theatre of the absurd and Ionesco himself has often been labelled the father of absurdities. This particular play, which has upset all conventions, habits and destroyed theatre itself has often been termed an anti-play, because it attacked and ridiculed all conventions of drama, the theatre, logic, language as well as life. Eugne Ionesco constructed this play out of nonsensical sentences, which are used to portray the irrelevance of the daily life led by the British bourgeois society who are deeply rooted in their meaningless lives. All absurdist playwrights like Ionesco often ignored the logical structures of traditional dramatical theatre when writing their plays, which explains why Ionescos The Bald Soprano, unlike other usual and non-absurdist plays, is basically about nothing. The characters portrayed, only capable of speaking in banal phrases and cliches are unable to communicate with each other. Lacking deep emotion or feeling of any kind, they often find themselves engaged in pointless chatter without ever really saying anything of much significance to one another. A pertinent example of this is Mr. Martins trivial story which everyone finds to be very interesting, well today when I went shopping to buy some vegetables; which are getting to be dearer and dearer...he was tying his shoelace which had come undone. (pg. 21-22) Furthermore, the play lacks structure; the author does not provide the reader with a detailed setting of the play or a very deep insight into the characters or their historical background. Therefore, the reader knows little about the plays characters other than the fact that they are a middle class English family. The ...

Wednesday, November 6, 2019

Harriet the Spy - Controversial Classic Childrens Book

Harriet the Spy - Controversial Classic Children's Book Harriet the Spy by Louise Fitzhugh has delighted kids and outraged some adults for more than 50 years. Spying is a serious business that requires concentration, patience, and an ability to think fast and write faster. Meet Harriet M. Welsch, 11-year-old girl spy and irreverent rebel. Fitzhugh’s classic novel Harriet the Spy, first published in 1964, introduced realism in the form of a flawed main character to an unsuspecting audience. Controversial and charismatic, Fitzhugh’s Harriet was a revolutionary personality bound to stir up dynamic discussion. The publisher recommends the book for ages 8-12. The Story Harriet M. Welsch is an 11-year-old sixth grader with a vivid imagination, a bossy attitude, and a freakish ability to hide in one spot for hours while observing her targets. The only child of a well-to-do New York couple, Harriet lives with her parents, a cook and a nurse named Ole Golly. She has two best friends, Sport and Janie, who are used to Harriet’s take-charge attitude and play along with her imaginary games. Although independent in her spy adventures, Harriet is a girl who depends on routine. Each day follows a schedule including coming home after to school for cake and milk before she takes off on her spy route. After school, she puts on her spy gear and canvases the neighborhood. Whether hanging out in a dark alley listening to the Dei Santi family, clinging to a window ledge to spy on Mr. Withers and his cats, or wedging herself tightly into a dumbwaiter to hear Mrs. Plumber’s theatrical phone calls, Harriet will wait for hours to hear something she can write down in her precious notebook. Life is neat and predictable for Harriet until the day she discovers that Ole Golly has a boyfriend! Dependent on Ole Golly for stability and routine, Harriet is distraught when the nurse announces that she’s getting married and leaving Harriet to start a new life in Canada. Harriet, shaken by this change in routine, focuses more on her spying and writes copious hateful notes about friends and neighbors. Meanwhile, she is fighting with her parents and finding it difficult to concentrate in school. Her troubles come to a head during a game of tag when she realizes her spy notebook has fallen into the hands of her classmates. The classmates’ revenge combined with Harriet’s personal world upheaval put into motion a roller coaster of disastrous events. Author Louise Fitzhugh Louise Fitzhugh, born October 5, 1928, in Memphis, Tennessee, did not have an ideal childhood. Her parents divorced when she was two and she was raised by her father who funded her attendance at Hutchins, an elite all-girl boarding school. Fitzhugh attended college to study painting and started her career as an illustrator. Harriet the Spy, which she also illustrated, debuted in 1964. Louise Fitzhugh died unexpectedly of a brain aneurysm at the age of 46 in 1974. In addition to Harriet the Spy, Fitzhughs Nobodys Family is Going to Change, a realistic novel for middle-grade readers 10 and up, remains in print. (Source: Children’s Literature Network and Macmillan) Controversy Harriet M. Welsch is not only a girl spy; she’s a girl spy with spice and that type of character didn’t find favor with some parents and teachers. Besides being brash, self-centered and prone to throwing full-blown tantrums, Harriet was not the polite demure spy like Nancy Drew with whom most readers were familiar. Harriet cursed, talked back to her parents, and didn’t care that her words were hurtful. According to the NPR feature â€Å"Unapologetically Harriet, the Misfit Spy, the book was banned and challenged by many parents and teachers who felt Harriet was a poor role model for children because she exhibited delinquent tendencies. Harriet, the early critics argued, didn’t spy, but rather gossiped, slandered, and hurt other people without feeling sorry about her actions. Despite the early controversy, Harriet the Spy was listed as #17 on the list of Top 100 Children’s Novels in a 2012 poll of School Library Journal readers and is considered a landmark novel in realistic children’s literature. Our Recommendation Harriet isn’t exactly a paragon of virtue. Spying on her neighbors and friends, writing down mean and hurtful comments, she doesn’t seem truly sorry for her words or actions. Today these characteristics in a fictional children’s book character are not atypical, but in 1964 Harriet was unrivaled as a snarky character who was unafraid to speak her mind or talk back to her parents. Children’s book expert Anita Silvey, who included Harriet the Spy in her book 100 Best Books for Children, describes Harriet as a solid character who stays the same. She doesn’t metamorphose into a nice little girl who is deeply repentant for the harm she’s inflicted. Instead, she’s learned to be a bit more tactful in expressing herself. Harriet is a rebel, and it’s easy to believe that she’s a real person because she stays true to herself. Harriet the Spy is an engaging book for reluctant readers as well as for readers who enjoy stories with unique characters who think and speak outside the box. We recommend this book for readers ages 10-up. (Yearling Books, an imprint of Random House, 2001. Paperback ISBN: 9780440416791) The 50th Anniversary Edition In honor of the 50th anniversary of the 1964 publication of Harriet the Spy, a special hardcover edition was published in 2014, with a number of special additions. These include tributes by a number of well-known childrens authors, including Judy Blume, Lois Lowry, and Rebecca Stead and a map of Harriet’s New York City neighborhood and spy route.  The special edition also includes some of the original author and editor correspondence. Edited by Elizabeth Kennedy, Childrens Books Expert

Monday, November 4, 2019

Effect of Skill Gaps in the telecommunications Industry Essay

Effect of Skill Gaps in the telecommunications Industry - Essay Example The major structural change within the telecommunication industry is the globalization of the industry. Moreover, the telecommunication industry has been liberalized within the world economies. Nonetheless, the adoption and application of innovative technologies has been impacted largely by the changes in skill needs which are aimed at filling the skill gaps which emanate from the application of advanced technology within the industry. This essay gives a critical analysis and discussion of how the skill gaps and needs in additional to structural changes within the telecommunication industry have impacted on the labor needs within the industry. Skill gaps within the telecommunication industry have developed as a result of the changes in the industry operations and processes. Sumit (2008, p. 587) elaborates that these changes emanate from the application of modern technologies within the telecommunication industry which is aimed at adapting to the changing business environment and rema ining competitive. Diana (2011, p. 93) asserts that the skill gaps which develop within the telecommunications businesses have led to the reduced productivity. ... According to Keefe (2009, p. 43), the skill gaps within telecommunication industry have led to the increased need for training staff. The management and employees are trained on the application of advanced technology in the provision of telecommunication products and services to the customers. For example the use of telecommunication software applications which are adopted by the telecommunication companies leads to the increased need for training. Maria (2011) reveals that effective management of the telecommunication companies includes meeting the training needs of employees and the management so that the skill gaps and needs is met within the various functional areas. Skills are acquired through proper training of employees. Managers would also be trained in order to be able to apply the management information systems effectively in the management of telecommunication business processes. Diana (2011, p. 103) adds that managers are also trained in the use or application of the deci sion support systems in decision making on the various aspects of telecommunication business. Batt, Colvin & Keefe (2002, p. 587) point out that the skill gaps within the telecommunication companies have caused their management to adopt employee termination programs to pave way for the employment of skilled labor. This is usually the case when the anticipated costs of training are beyond the budgetary allocation for employee training. The loss of company employees has led to the reduced morale and motivation among the work force. Additionally, the ability of skilled employees to adapt to the changes within the labor force of an organization determines the achievement of objectives. Keefe (2009, p. 47) exemplifies that many telecommunication

Saturday, November 2, 2019

Communication and Relational Dynamics Essay Example | Topics and Well Written Essays - 500 words

Communication and Relational Dynamics - Essay Example Relational maintenance is one thing I have learned that I would use in future. Instead of drawing apart from people who I will come close to in the workplace, I would rather maintain the relationship. Discussion on managing dialectical tensions has enhanced my understanding of my communication style. In the face of tension and confusion, I have learned how to go to one side by denying the other. Balancing is another way I can manage tensions; by partially responding to both parties. Recalibration can also help to avoid any opposition from one party. Reaffirmation is yet another way that relates to being positive about a situation. These ways have enlightened me how I can respond to tensions in different circumstances.I am going to use metacommunication as a way to resolve conflict in a more constructive manner. We can resolve the conflict between my coworker, and I through this. What I like most in this discussion are the characteristics of relationships. It is interesting how relati onships turn out to be. You can be romantically involved with someone you will end up marrying you, but it reaches a point where disagreements come in making the relationship to come to an end. They keep on changing and are affected by culture. The least liked discussion was of the types of relational messages which I did not grasp how they occur. I suggest the topic on types of relational messages should be done individually to enhance my understanding and feature in YouTube for easier access.