Thursday, January 30, 2020

Piper Alpha Disaster Essay Example for Free

Piper Alpha Disaster Essay Followed by steps and improvement which is done after the incident to prevent such disaster to happen again. The case study is concluded with the safety precautions should be installed and practised in the platform. IntroductionThis is a case study about the Piper Alpha disaster, on the management operations and structures, the objective of the management, the industrial process of the platform, the causes of the accident together with the consequences of the accident and case study on the improvement and the prevention of such disaster again. Piper alpha was a  sea  oil production platform  operated by  Occidental Petroleum (Caledonia) Ltd. [1]  The platform began production in 1976,[2]first as an oil platform and then later converted to gas production. An explosion and resulting fire destroyed it on 6 July 1988, this catastrophic event killed in total of 167 men, [3] with only 61 survivors. The death toll includes two crewmen of a rescue vessel who tried to save the victims of the fire. [4] Total insured loss was about ? 1. 7 billion (US$3. 4 billion). The moment of the disaster the platform was accounted for nearly ten percent of  oil  and gas production, and was the worst offshore oil disaster in terms of lives lost and industry impact. [5] Some evidence says the new gas pipeline was built in the weeks before the 6 July explosion, and while this work disrupted the normal routine, the platform was operating as normal. The discovery of a small gas leak is usual and not a concern at the platform at that time due to carelessness the platform was completely destroyed and caused life of 167 en on the platform, and many of those involved died, analysis of events began. [6] 2. 1 Management and OperationsAn  oil and gas platform is a large structure with facilities to drill wells, to extract and process  oil  and  natural gas, and to temporarily store product until it can be brought to shore for refining and marketing. Mostly the platform has facilities to house the workforce crew as well. Depending on the circumstances, the p latform may be  fixed  to the ocean floor, may consist of an  artificial island, or may  float. 2. 1. Management and Structures Piper Alpha receives and sends to the shore the oil and gas production of a group of platforms, Tartan and Claymore. These how the incident took place[1]  : -As the Piper Alpha platform was at the hub of a network of platforms interconnected by oil and gas pipelines. The leak of the gas lead to the initial explosion and ruptured oil lines on Piper Alpha. Managers on other platforms was aware of a problem on Piper Alpha but not its severity, assumed that they would be instructed to shut down their operations, if necessary. However, the explosion interrupted communications from Piper Alpha for minimum of (30 to 60 minutes intervals) passed before these other platforms were closed. As series of explosions occurred as the fires on the platform weakened natural gas riser pipelines on Piper Alpha the intensity of the fires prevented rescue efforts, either by helicopter or by ship which led to 165 workers and 2 rescue personnel killed. The RV job was completed by the end of the shift. The permit to work (PTW) system was often not implemented as according to, for example: Omissions of signatures and gas test results were common. Operations representatives regularly did not inspect the jobsite before suspending the permit at the end of the shift, or closing the permit indicating the work had been completed. The lead safety operator task is to monitor the PTW system process regularly there was no problem indicated, the mishap and the lack of information and work ethics. The management assumed the system working at full efficiency and didn’t check it independently. These led to miscommunication and lack of knowledge and information when the fire began. 4. 1. 2Design Factor -The diesel powered water pumps were set to manual mode, therefore incase of fire the personnel has to reach the pump to start it though the 1983 fire audit report has recommended this practice is discontinued. The sprinkler head were known to be plugged and corroded. -The structural steel on the platform was not alloyed to be fireproof or withstand high intensity of fire. 4. 1. 3Roots Factor The root of the cause was that most of the personnel who had the authority to order evacuation were killed when first explosion destroyed the control room. This was due to the platform design defect, including the absence of blast walls. Another contributing factor was the nearby connected platforms Tartan and Claymore continued to pump gas and oil to  Piper Alpha  until its pipeline ruptured in the heat in the second explosion. Their operations crews did not shut off the production due to lack of training and communication with the management, even though they could see that  Piper Alpha  was on fire. [7]   4. 1. 3. The wrong management decision. The lack of information and adequacy of checking the PTW system process led to wrong decisions and lack of communication during the leak.

Wednesday, January 22, 2020

Everyone Should Go to the County Fair! :: Argumentative Persuasive Argument Essays

Everyone Should Go to the County Fair! If you've been to the County Fair before, there's no reason for you to keep reading this. You already know how much fun it is. You don't need to be convinced. You're already going back. You can stop reading right now, go buy your pre-sale tickets, and get the car packed up and ready to go. But you, yes, you, what's your excuse for not having been to the past 156 County Fairs? Oh, "I wasn't born 156 years ago," you say? That's no excuse. You're just going to have to go to this year's Fair to make amends. After all, there are more reasons to go to the Fair than there are to stay home. Of course, there are the classic reasons for going to the Fair: the dozens of rides and attractions along the mile-long midway; the incredible variety of food and drink available; the many hands-on livestock exhibits; the opportunity to make hundreds of little goldfish paranoid by hurling plastic projectiles into their bowls; and, of course, the wide variety of special events. If you've been to the Fair before and are reading this article anyway, you may as well keep reading to see what's new. Quite a few things are swinging at the Fair this year, and that's not just a poor attempt at sounding "hip." You can, for instance, start by swinging to the tunes of the Artie Shaw Orchestra, the band that helped shape the musical standards of the Big Band era. They'll be performing a free concert in the Music Dome from August 12th to 16th at 7 pm. If you're looking for a more daring kind of swinging, head over to watch the Incredible Nocks, a husband and wife daredevil team performing free daily shows at the Old Fashioned One-Ring Circus. Finally, if swinging people aren't your style, you can check out some swinging of axes at the World Champion Lumberjacks Show, also performing free daily shows. I know, by now, all this talk of swinging has made you dizzy, and you want to go and check out the "tamer" animal-oriented events, right? Well, there are plenty of new attractions this year, starting with the presentation of the Hawthorn White Tigers, 15 rare endangered animals which are non-existent in the wild. Then there is the all new Shark Show, featuring live sharks, a diver, plenty of educational content, dramatic lighting, smoke effects, and Jaws music! Better practice saying "You're gonna need a bigger boat" in your best old salt voice.

Tuesday, January 14, 2020

Are We Better Than Our Forefathers Essay

Have you ever pondered the fact that we are better than our forefathers? If you think otherwise, I’ll explain why I think this way. Most people say that our forefathers’ lives were very peaceful. We have technology at our hands and we have made atom bombs and weapons. For destruction you might say, but that’s not true because we are making these for our protection. Our forefathers lived without many modern amenities and inventions such as electricity, aero planes, microwave ovens and more, whereas we cannot even imagine life without laptops and cellular phones. Even children play with such things. The greatest drawback of the lives that our forefathers led was that of education; the people were mostly uneducated and were unaware the major issues of life. Their thinking was limited to their surroundings and they were not aware or bothered about what was happening in other parts of the world. We are living an active life, whereas our forefather led simple, idle lives. We have clear concepts in our minds whereas the people who lived in the past had many complex issues in their minds. Young never knew the philosophy of life and children were busy with playing games only. Today, we can communicate with people in different countries within no time — thanks to telephone and email.. However, in the past it would take months to send message from one country to another or one place to another. Today, people possess knowledge about every layer within the earth whereas our forefathers living in the past were only familiar with well water. We can even touch the skies, thanks to the major strides that have been made in the field of commutation. The sky is the limit when it comes to development and progress in our age. We have overcome time and space and are covering large distances in a short span of time. While in the past people travelled on foot or in horse driven carriages now we have bullet trains and super sonic aero planes. Of course, all these facts prove that we are leading better lives than our forefathers but it is a fact that the next generation will be better than us.

Monday, January 6, 2020

The Role of Dna Technology in Crime Investigation

DNA profiling DNA profiling (also called DNA testing, DNA typing, or genetic fingerprinting) is a technique employed by forensic scientists to assist in the identification of individuals on the basis of their respective DNA profiles. DNA profiles are encrypted sets of numbers that reflect a persons DNA makeup, which can also be used as the persons identifier. DNA profiling should not be confused with full genome sequencing. It is used in, for example, parental testing and rape investigation. Although 99.9% of human DNA sequences are the same in every person, enough of the DNA is different to distinguish one individual from another. DNA profiling uses repetitive (repeat) sequences that are highly variable called variable†¦show more content†¦* STR analysis The method of DNA profiling used today is based on PCR and uses short tandem repeats (STR). This method uses highly polymorphic regions that have short repeated sequences of DNA (the most common is 4 bases repeated, but there are other lengths in use, including 3 and 5 bases). Because unrelated people almost certainly have different numbers of repeat units, STRs can be used to discriminate between unrelated individuals. These STR loci (locations on a chromosome) are targeted with sequence-specific primers and amplified using PCR. The DNA fragments that result are then separated and detected using electrophoresis. There are two common methods of separation and detection, capillary electrophoresis (CE) and gel electrophoresis. Each STR is polymorphic, however, the number of alleles is small. Typically each STR allele will be shared by around 5 - 20% of individuals. The power of STR analysis comes from looking at multiple STR loci simultaneously. The pattern of alleles can identify an individual quite accurately. Thus STR analysis provides an excellent identification tool. The more STR regions that are tested in an individual the more discriminating the test becomes. From country to country, different STR-based DNA-profiling systems are in use. In North America, systems whichShow MoreRelatedDna And The Criminal Justice System872 Words   |  4 PagesDeoxyribonucleic Acid, otherwise known as DNA has played a crucial part in many investigations both past and present. It can be used to identify criminals when there is evidence left behind with incredible accuracy. DNA evidence is taken seriously enough that it can exonerate, or bring about a conviction. In Today’s society DNA evidence and technology is vital to the criminal justice system by ensuring accuracy and fairness. In 1984, Alec Jeffreys of the University of LeicesterRead MoreEssay about DNA, The New Crime Investigator1358 Words   |  6 PagesDNA, The New Crime Investigator Abstract What is DNA? 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