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Hydrogen sulfide is a toxic gas that is contained on the installation of associated gas production of an oil and gas exploration industry. This thesis is adescriptive study with a semi-quantitative approach using secondary data from thecompany, literature and field observations. Then, these data are analyzed using thesoftware Areal Location of Hazardous Atmosphere (ALOHA). The purpose ofthis study was to determine the consequences that occur based on the range of gasdispersion, and population at risk to exposed of leakage scenarios that have beendesigned at the associated gas production installations.The results of this study found that the worst case scenario (uncontrolledrupture) in a 10 inches gas pipeline has the most extensive gas dispersion. Withinan hour, the farthest H2S gas dispersion with AEGL-1 0.51 ppm (60 min) reached3.6 km with a population at risk include people living in the surrounding area ofproduction station. Moreover, other results from this study were the level ofknowledge from population at risk about the dangers from gas leaks and gas leakssafety systems overview that available in PT.X.Keywords : Consequences analysis, Toxic gas dispersion, ALOHA, Associatedgas, Hidrogen Sulfida (H2S), Population at risk
This study is about consequence analysis of gas dispersion, fire, and explosion of LPG spherical storage tank C – 20 – 01 – A at PT Pertamina (Persero) RU V Balikpapan. This study is a quantitative study using ALOHA software to analyze the primary and secondary data. This study aims to estimate the range and consequences of gas dispersion, fire, and explosion due to leakage at LPG spherical storage tank C – 20 – 01 – A which is divided to propane and butane.
Kata kunci : Analisis Konsekuensi, Threat Zone, SPPBE, Dispersi Gas, kebakaran, ledakan, Jet Fire, BLEVE, Vapour Cloud Explosion
This study is about consequence analysis of gas dispersion, fire, andexplosion of LPG storage tank in SPPBE PT Aroma Jaya Sejati Sragen. Thisstudy is semi quantitave study using secondary data and field observation then analyze them with ALOHA software. The purpose of this study is to find out theconsequences impact range of gas dispersion, fire and explosion due to leakage ofLPG storage tank which divided into propane and butane gas.The result of this study is threat zone from gas dispersion, jet fire, BLEVE,and Vapour Cloud Explosion modelling. The result can show the heat radiationand explosion pressure and safe distance of SPPBE PT Aroma Jaya Sejati Sragen.
Keywords : Consequence Analysis, Threat Zone, SPPBE, Gas Dispersion, fire,explosion, Jet Fire, BLEVE, Vapour Cloud Explosion
This study is about consequence analysis of gas dispersion, fire, and explosionon LPG storage tank at SPPBE PT Adikarya Pramita Perdana, Depok. This study is aquantitative modeling with collecting secondary data and field observations thatanalyzed using ALOHA (Areal Location of Hazardous Atmosphere) software. Thepurpose of this study is to find out the consequences impact range of gas dispersion,fire and explosion due to leakage of LPG storage tank which divided into propaneand butane gas, also the description of fire safety system and emergency managementat SPPBE PT Adikarya Pramita Perdana.The results of this study is the range and consequences of modeling toxic gasdispersion due to leakage of LPG storage tank at SPPBE PT Adikarya PramitaPerdana, spreading range distance up to 401 meters. In jet fire model the range up to159 meters, while in BLEVE up to 1 kilometer, and VCE model up to 330 meters.The dangerous location or area due to this leakage at SPPBE PT Adikarya PramitaPerdana and the populations which is at risk reaches Sukamaju, Jatijajar, andCilodong. The installation of fire safety equipment at SPPBE PT Adikarya PramitaPerdana is already proper and meets the standard of PT Pertamina (Persero) and alsohas guidelines for emergency response management system for handling multiplecases of emergencies.Keywords: Consequence analysis, LPG, Storage Tank, SPPBE, ALOHA, Toxic gasdispersion, Fire, Jet fire, BLEVE, Explosion, Vapor cloud explosion, Firesafety, Emergency management
Oil and gas companies are among the high-risk establishments explosion or fire (ILO, 1991). Explosions and fires can be classified into the category of great danger, because it may cause a big loss in a short time. The cause can be caused by many variables depending on the physical form of a material (solid, liquid or gas), physical properties (heat capacity, vapor pressure, burning heat, etc.) as well as its reactivity. This condition can actually be minimized by preventing and controlling risk, example analyzing the consequences of gas dispersion, fire and explosion caused by leakage of LPG storage tanks loaded with 30 tons in 2012 by using the descriptive quantitative research methods.
Kata kunci : BREEZE Incident Analyst, tangki timbun, Premium, konsekuensi, dispersi gas, kebakaran,kolam api, BLEVE, ledakan.
Oil and gas industries normally use storage tanks containing flammable materials and hazardous to health, therefore the risk for the occurrence of gas dispersion, fire, andexplosion is very high when the failure happened storage tank. Modeling performed in thisstudy aimed to determine the consequences of the events of gas dispersion, fire and explosiondue to leakage in the Premium storage tank with a capacity of 5000 liters at PT Pertamina(Persero) Terminal BBM Panjang, Lampung which is an oil and gas industry. This research isa quantitative modeling. Modeling done using software BREEZE Incident Analyst at threetypes of hydrocarbons that become Premium components, namely hexane, heptane, andpentane.Results of this research are presented range and consequences of gas dispersion, fire,and explosion for the three zones based on the level of concern of each scenario. The rangeand consequences of this modeling will be analyzed by the system fire safety and emergencymanagement in PT Pertamina (Persero) Terminal BBM Lampung, Lampung.
Keywords:BREEZE Incident Analyst, storage tank, Premium, consequences, gas dispersion, fire, poolfire, BLEVE, explosion
Resiko bekerja di perusahaan migas PT X yang berlokasi di offshore Natuna adalah relatif tinggi. Sepanjang tahun 2018 – 2023 terjadi fluktuasi kecelakaan kerja di PT. X. Bahkan setelah dua tahun (tahun 2020 dan 2019) tidak terjadi kecelakaan kerja untuk kategori recordable injury (kasus di atas FAC), di tahun 2021 terjadi lagi 3 kasus (1 RWDC dan 2 MTC) dan di tahun 2022 terjadi 4 kasus (1 LWDC, 1 RWDC, dan 2 MTC). Di tahun 2023 terjadi 1 kasus (1 RWDC). Korban kecelakaan kerja di tahun 2021 didominasi oleh pekerja kontrak dan pekerja tetap sedangkan kecelakaan kerja di tahun 2022 dan 2023 semuanya terjadi pada pekerja kontrak. Sebagian besar kecelakaan yang terjadi penyebab langsungnya adalah unsafe acts. Sampai saat ini belum ada analisis menyeluruh dari data investigasi kecelakaan-kecelakaan yang telah dilakukan PT X untuk mendapatkan faktor-faktor penyebab dasar dari semua kecelakaan tersebut. Dengan demikian, penelitian perlu dilakukan, dan karena berhubungan dengan human factor, maka pada penelitian ini akan dianalisis faktor-faktor yang menyebabkan kecelakaan kerja tersebut dengan metode Human Factor Analysis and Classification System (HFACS). Tujuan: Menganalisis faktor-faktor yang memengaruhi kecelakaan kerja di PT X antara tahun 2018 – 2023 dengan metode HFACS. Metode: Penelitian ini adalah penelitian deskriptif analitik dengan pendekatan kualitatif. Data sekunder yang digunakan berupa rekaman kejadian kecelakaan dan laporan investigasi atas 41 kecelakaan di PT X. Data sekunder tersebut kemudian diklasifikasikan sesuai dengan empat (4) tahapan kegagalan di metode HFACS, yaitu unsafe acts, precondition of unsafe acts, unsafe supervision, dan organizational influence. Pengklasifikasian ini divalidasi oleh dua ahli keselamatan kerja, di mana hasil validasinya relatif tinggi (96%). Hasil: Hasil penelitian menjelaskan bahwa faktor-faktor HFACS yang mempengaruhi kecelakaan terbesar berturut-turut adalah adverse mental state (51,2%), skill-based error (39%), routine violations (34,1%), dan tools/technological dan resource management (masing-masing 31,7%). Kemudian disusul oleh decision error (29,3%), inadequate supervision (22%), failed to correct problem dan organizational process masing-masing (17,1%), lalu supervisory violation dan organizational climate masing-masing (9,8%). Kesimpulan: Faktor-faktor HFACS yang memengaruhi kecelakaan kerja di PT X dapat digunakan sebagai masukan untuk perbaikan program K3 perusahaan guna menurunkan angka kecelakaan dengan memprioritaskannya pada faktor HFACS yang bersifat latent failure baru kemudian pada faktor active failure-nya, karena latent failure - jika diperbaiki- akan menjadi kunci untuk mencegah berulangnya kecelakaan.
The risks of working for the PT X , an oil and gas company located offshore Natuna are relatively high. Throughout 2018 – 2023 there were fluctuations in work accidents at PT. X. Even after two years (2020 and 2019) there was no work accident for the recordable injury category (cases above FAC), in 2021 there were 3 cases (1 RWDC and 2 MTC) and in 2022 there were 4 cases (1 LWDC, 1 RWDC, and 2 MTC). In 2023 there was 1 case (1 RWDC). Work accident victims in 2021 are dominated by contract workers and permanent workers, while work accidents in 2022 and 2023 all occur in contract workers. Most of the accidents that occur are directly caused by unsafe acts. Until now there has been no comprehensive analysis of accident investigation data that has been carried out by PT X to obtain the basic causal factors of all these accidents. Thus, research needs to be carried out, and because it is related to human factors, this research will analyze the factors that cause work accidents using the Human Factor Analysis and Classification System (HFACS) method. Objective: Analyzing the factors that influence work accidents at PT X between 2018 – 2023 using the HFACS method. Method: This research is descriptive analytical research with a qualitative approach. The secondary data used is in the form of recordings of accidents and investigation reports on 41 accidents at PT X . This classification was validated by two occupational safety experts, where the validation results were relatively high (96%). Results: The research results explain that the HFACS factors that influence the biggest accidents are adverse mental state (51.2%), skill-based errors (39%), routine violations (34.1%), and tools/technological and resources, respectively. management (31.7% each). Then followed by decision errors (29.3%), inadequate supervision (22%), failed to correct problems and organizational processes respectively (17.1%), then supervisory violations and organizational climate respectively (9.8%). Conclusion: The HFACS factors that influence work accidents in PT X can be used as input for improving the company's H&S program to reduce the number of accidents by prioritizing the HFACS factors which are latent failures and then the active failure factors, because latent failures - if corrected - will become key to preventing recurrence of accidents.
