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Operation of gas pipelines by PT X, built in 1998 along 14.4 km of which has a danger of gas leaks and fires. Risk analysis is conducted to anticipate the risks that would arise in the gas distribution activities whose results are expected to provide input for the company. This relative risk analysis using semiquantitative methods Risk Rating Index with the approach where the risk of possible dangers (Sum Index) and consequences (Leak Impact Factor). The results showed that the pipelines are in high risk areas (Intolerable) and most of the factors that play a role in contributing to the failure of the operation of the pipeline is the design factor. Keyword : Methods of risk rating index, the relative risk, probability, consequences.
ABSTRAK Pengoperasian pipa penyalur gas yang melintasi suatu kawasan tertentu mempunyai potensi risiko (bahaya) dan konsekuensi tertentu berdasarkan kehandalan dari instalasi pipa penyalur tersebut dan produk yang mengalir di dalam pipa tersebut Penelitian ini bertujuan untuk mengkaji risiko pengoperasian pipa penyalur gas sehingga didapatkan gambaran sumber bahaya. jenis bahaya dan risikonya beserta ukuran dan tingkat risiko tersebut yang pada akhimya dapat digunakan sebagai index) sebesar 302,33; nilai chance of survival sebesar 75,58%; chance of Failure 24,42% dan nilai faktor konsekuensi sebesar 8,33. Dengan melihat nilai chance of survival sebesar 75,58o/o., maka secara umum pipa penyalur gas PT. ABC yang dioperasikan pada jalur PT. ABC - PT. XYZ Cilegon Banten masih dalam kriteria aman, namun harus melakukan tindakan prevention dan mitigati secara tepat karena nilai leak impactfactornya sebesar 8,33. Hasil keseluruhan ini menunjukkan bahwa ketiga section yang ada mempunyai nilai yang tidak jauh berbeda, oleh sebab itu semua section yang ada harus mendapatkan perhatian yang sama, yaitu melakukan tindakan prevention dan mitigation secara tepat.
In offshore oil and gas industry operations, underwater pipeline installations are used as transportation to move oil and gas products from one place to another, the underwater pipeline operation cannot be separated from the dangers and risks that can be caused by various factors. Most subsea pipeline failures occur due to failure to recognize hazards and the absence of proper hazard mitigation. These failures can be prevented through a safety risk management method and one of the stages of risk management is risk assessment. Pipes have a vulnerability to damage that can result in various safety incidents that have an impact on human safety, environmental pollution, as well as the company's business. This study aims to conduct a risk assessment of the 20-inch submarine pipeline located in the waters of East Kalimantan belonging to PT.X in the operation phase. This research is a quantitative research using secondary data obtained from PT. X. A pipeline risk assessment methodology (DNV-RP-F107) will be used to identify risks. From the results of the analysis carried out in this study, it was found that the Risk assessment of the 20 main pipeline for oil and gas distributor PT X had been carried out in the scenarios of falling and being dragged by anchors, pipe leaks, and sinking ships with the results of the study showing acceptable risks. The mitigation that has been carried out by PT X in operating the 20 pipe is to be maintained so that the risks in the three scenarios studied can be controlled and are at a low/acceptable level of risk
ABSTRAK Pemodelan merupakan salah satu cara yang digunakan untuk melakukan suatu analisis risiko untuk mengetahui gambaran dan tingkat risiko terhadap potensi kegagalan yang disebabkan oleh adanya beberapa faktor dan dampak yang ditimbulkan akibat adanya kegagalan suatu sistem. Dalam melakukan analisis risiko pada sistem perpipaan yang digunakan untuk menstransmisikan natural gas di PT. XYZ dari suatu tempat ke tempat yang lain digunakan pemodelan dari W. Kent Muhlbauer, dimana model ini secara langsung dapat membantu dalam proses pengolahan data-data untuk menentukan gambaran serta besaran risiko pada suatu sistem perpipaan transmisi. Hasil dari olahan data ini dapat digunakan untuk melakukan justifikasi, tindakan serta sekala prioritas yang harus dilakukan.
ABSTRACT Modeling is one part of ways to determine and define the risk level of potentially failure caused by several factors and impact result due to system failures. On performing of pipeline safety risk analysis where pipeline is used to transport natural gas by PT. XYZ from one place to other place with using W. Kent Muhlbauer’s model. This model will use to calculate and to define the risk level from gathered data that collected from PT. XYZ. The risk analyses results are used to justify the actions are to be taken in accordance with priority level.
Penelitian ini adalah melakukan kajian evaluasi risiko dengan menggunakan metode system penilaian yang dikembangkan oleh W. Kent. Muhlbauer. Setiap kemungkinan kegagalan risiko dan rentetan kejadian yang mengarah pada kegagalan dipelajari secara rinci. Perhitungan secara angka diberikan terhadap kondisi system pipeline, yang ditentukan berdasarkan kombinasi dari data statistik kegagalan dan pengalaman operator pipa saluran. Pengumpulan data dilakukan dengan cara mengukur langsung melalui observasi dan checklist serta wawancara. Data yang diperoleh kemudian diolah dengan menggunakan metode system penilaian W, Kent. Muhlbauer.Penelitian dilaksanakan di Pertamina Unit Pengolahan IV Cilacap dengan unit analisis 12 jalur pipeline, dengan tujuan untuk mengetahui nilai risiko relatif tiap jalur pipeline dari Kilang UP IV sampai dengan Terminal Penimbun Area 70. Hasil penelitian ini diperoleh komponen risiko paling besar adalah komponen kerusakan oleh pihak ketiga, jalur pipeline yang berpotensi paling besar menimbulkan kegagalan adalah pipa 70-8001-A25A-12" Benzene dan 70-PL8001-A25A-12' ParaxyleneGuna mengantisipasi timbulnya kecelakaan pada pipeline perlu diterapkan manajemen risiko pipeline secara berkesinambungan dan prosedur emergency response dalam mengantisipasinya.
Risk study of 12 pipelines from Refinery UP IV to Tanks Storage Terminal Area 70 Cilacap 2002.This research is to studies risk evaluation using analysis method system from W. Kent. Muhlbauer theory. Studies to every possibility to default and sequence accident to default. Collecting data as direct measure about observations, checklist and interviewing. Then the collected data was processed using W. Kent. Muhlbauer method.This research was resembled at Pertamina Unit Pengolahan IV Cilacap, using 12 pipelines, aims to known relative risk value every pipelines from Refinery UP IV to Tanks Storage Terminal at Area 70 Cilacap.The result of this research was find as mayor risk as destroy from third party, potentials pipelines to default is 60-1001AJ-36" Light Arabian Crude and 60-1003 AJ-18" Heavy Naphta.To anticipation accident at pipelines, to implementation pipelines risk management continuous improvement.
