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Cahaya Rosyidan
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Jurusan Teknik Perminyakan Fakultas Teknologi Kebumian dan Energi, Gedung D, Lt.4, Universitas Trisakti Jl. Kyai Tapa No. 1 Grogol, Jakarta 11440
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Petro : Jurnal Ilmiah Teknik Perminyakan
Published by Universitas Trisakti
ISSN : 19070438     EISSN : 26147297     DOI : https://doi.org/10.25105/petro.v11i2.14060
Core Subject : Economy, Science, Engineering,
Earth & Planetary Sciences Economics, Econometrics & Finance Energy Engineering
The PETRO Journal is all about the upstream oil and downstream oil and gas industry. Upstream studies focus on production technology, drilling technology, petrophysics, reservoir study, and eor study. Downstream technology focuses on the oil process, managing surface equipment, geothermal, and economic forecast.
Arjuna Subject : Ilmu Bumi dan Planet (semua kategori) - Geokimia danPetrologi
Articles 9 Documents
 1 
Search results for , issue "Vol. 8 No. 3 (2019): SEPTEMBER" : 9 Documents clear
PROJECT ECONOMIC EVALUATION OF LOW PERMEABILITY RESERVOIR DEVELOPMENT USING DISCOUNTED CASH FLOW METHOD AND REAL OPTION ANALYSIS FOR INVESTMENT DECISION Agus Rudiyono
PETRO:Jurnal Ilmiah Teknik Perminyakan Vol. 8 No. 3 (2019): SEPTEMBER
Publisher : Jurusan Teknik Perminyakan Fakultas Teknologi Kebumian dan Energi Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3520.16 KB) | DOI: 10.25105/petro.v8i3.5508

Abstract

The oil potential from low quality reservoir of Field “X” is big and current recovery is not optimum yet.  The typical low quality reservoir with low permeability characteristic is commonly not optimum if it is developed using common vertical well and horizontal well. These methods give low fluid rate deliverables that impact on low recovery and also operational challenges on artificial lift performance since not working on optimum range condition. To improve production performance and recovery, it is required the advanced method such as horizontal drilling using hydraulic multi step  fracturing.  However horizontal drilling using hydraulic multi step  fracturing method need higher capital expenditure and more complex operational aspect during execution. On the current oil price condition, it is required comprehensive investment analysis for decision analysis consideration by performing oil price and investment cost sensitivity analysis, development scenario whether it is delay option, call option or put option.  This research performs economic analysis using both Cost recovery PSC system and  Gross Split PSC system. For economic analysis method, it use conventional Discounted Cash Flow (DCF) and Real Option to understand the value of flexibility that important for decision consideration.The economic analysis of  low permeability reservoir development for 6 wells indicate that this project need 17.6 MM US$ capital expenditure, and will recover oil volume  around 1.89 MMBO. Economic evaluation using DCF method with discount rate 10.8% indicate the  economic indices for PSC Cost recovery (NPV = 6.08  MM US$, IRR= 28.9%, POT=  0.997 years, PI= 1.28 and Value Creation (VC) 10.65 MM US$) and for PSC Gross Split  (NPV = 10.64  MM $US, IRR= 29.0%, POT=  1.517 years, PI= 1.49 and value creation (VC) 1.94 MM US$). Economic analysis using  Real Option method with Black Scholes Merton  (BSM) indicate that this project will  deliver call option value around  9.8 MM US$ with value of flexibility around 3.7 MM US$ for PSC cost recovery. Meanwhile Real Option analysis for PSC gross split gives call option value around 10.7 MM US$ and value of flexibility around 4.1 MM US$.  The 2 (two) methods recommend that this project economically feasible and  suggest to execute the project as planned schedule (call to expand). According to the operational and economic assumption, it is suggested that Gross Split PSC system is potentially better on economic outcome than PSC cost recovery for the contractor (KKKS).
THE EFFECT OF USING CALCIUM CHLORIDE IN G CLASS CEMENT ON STARTING TIME AND CEMENT PRESSURE Cahaya Rosyidan
PETRO:Jurnal Ilmiah Teknik Perminyakan Vol. 8 No. 3 (2019): SEPTEMBER
Publisher : Jurusan Teknik Perminyakan Fakultas Teknologi Kebumian dan Energi Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1398.951 KB) | DOI: 10.25105/petro.v8i3.5509

Abstract

Drilling operations always require fluid in their activities. Because to penetrate the soil and rocks will be very easy with the use of fluid.  The fluid will help soften the soil and rocks making it easier for the drill bit to penetrate it. Drilling fluid is also needed to attach the casing to the drill wall. So that the wall does not collapse, as media logging and so on. Of course, each drilling zone (surface zone, intermediate zone, and production zone) has different characteristics and different additive substances are needed. This study wants to find out the function of the use of calcium chloride additives on the nature of cement hardness and choking time. This research is important because it will be known this addictive nature as a retarder or accelerator. By knowing the nature of this additive so that it can be used in the right zone. Testing on Calcium Chloride additive for the value of compressive strength is very effective at a concentration of 8%, 24-hour immersion time and a temperature of 150 ° F with a test result of 4483 psi. Whereas, at temperatures of 80 ° F and 100 ° F, the maximum value of compressive strength for Calcium Chloride additive occurs at a concentration of 10% with a test result of 2393 psi and 2888 psi. Based on the data presented, temperature plays an important role in testing the thickening time of a cement sample. The addition of calcium chloride additive functions as an accelerator.
ANALISIS COMPRESSIVE STRENGHT DAN THICKENING TIME SEMEN KELAS G DENGAN PENAMBAHAN ADDITIVE SODIUM LIGNOSULFANATE DAN CACL2 PADA SKALA LABORATORIUM Cahaya Rosyidan
PETRO:Jurnal Ilmiah Teknik Perminyakan Vol. 8 No. 3 (2019): SEPTEMBER
Publisher : Jurusan Teknik Perminyakan Fakultas Teknologi Kebumian dan Energi Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2869.737 KB) | DOI: 10.25105/petro.v8i3.5510

Abstract

Fisika adalah suatu ilmu yang mempelajari tentang alam semesta, baik mempelajari partikel yang berukuran kecil sampai dengan planet yang berukuran makro. Bidang kajiannyapun beragam dari mempelajari struktur bumi sampai dengan sistem tata surya. Salah satu penerapan ilmu fisika adalah di bidang industri perminyakan. Perkembangan teknologi perminyakan dewasa ini sangat pesat sekali, salah satunya adalah dalam pengeboran atau drilling. Operasi pemboran tidak pernah lepas atau mengabaikan penggunaan fluida pemboran. Fluida pemboran terdiri dari dua pekerjaan yakni rekayasa lumpur pemboran dan penyemenan.Penyemenan diperlukan supaya dapat mengurangi permasalahan sewaktu melakukan pemboran pada trayek selanjutnya. Tingkat keberhasilan penyemenan ditentukan oleh 2 hal yakni kualitas bahan penyemenan yang terdiri dari bahan dasar semen serta aditif dan teknik pelaksanaan penyemenan. Pada penambahan Sodium Lignosulfonate terjadi penurunan nilai compressive strength  dan menaikan nilai thickening time pada konsentrasi 1% adalah 255 menit dengan temperatur 80°F karena pada dasarnya additive ini bersifat retarder. Pengujian additive Calcium Chloride untuk nilai compressive strength sangat efektif pada konsentrasi 7% dengan hasil test 4483 psi pada temperatur 150°F, sedangkan pada temperatur 80°F dan 100°F hasil test yang didapat sebesar 2393 psi dan 2888 psi, sedangkan nilai thickening time menurun dikarenakan sifat additive ini sebagai accelerator.
THIN BED IDENTIFICATION IMPROVEMENT USING SHORT – TIME FOURIER TRANSFORM HALF – CEPSTRUM ON “TG” FIELD Intan Andriani Putri; Awali Priyono
PETRO:Jurnal Ilmiah Teknik Perminyakan Vol. 8 No. 3 (2019): SEPTEMBER
Publisher : Jurusan Teknik Perminyakan Fakultas Teknologi Kebumian dan Energi Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1617.109 KB) | DOI: 10.25105/petro.v8i3.5511

Abstract

Thin Bed Identification is still a difficult task even with the advanced technology of seismic acquisition. Certain high frequency component is necessary and could be obtained through resolution enhancement. Short – Time Fourier Transform Half Cepstrum (STFTHC) is performed to enhance seismic resolution thus a better separation of thin bed could be improved. Basic principal of STFTHC is to replace the frequency spectrum by its logarithm while phase spectrum remains the same. Synthetic seismic was built based on Ricker and Rayleigh criterion. They were used to test the program yielding a better separation of two interfaces under tuning thickness without creating new artifacts. The algorithm was applied to seismic data from TG field. Using post-STFTHC seismic data as input of acoustic impedance inversion, well tie correlation increases by 10% and decreases inversion analysis error by 17,5%. Several thin bed -which once could not- could be identified on acoustic impedance result.
EVALUASI HASIL REMEDIAL CEMENTING TERHADAP KINERJA PRODUKSI SUMUR MINYAK DENGAN PERMASALAHAN WATER CHANNELING Jan Friadi Sinaga
PETRO:Jurnal Ilmiah Teknik Perminyakan Vol. 8 No. 3 (2019): SEPTEMBER
Publisher : Jurusan Teknik Perminyakan Fakultas Teknologi Kebumian dan Energi Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1984.334 KB) | DOI: 10.25105/petro.v8i3.5512

Abstract

Salah satu problema dalam kegiatan produksi sumur minyak adalah ikut terproduksinya air formasi bersama-sama dengan minyak. Sumur J-001 yang diteliti dalam makalah ini mulai berproduksi sejak Maret 2015 dengan produksi awal 1144 bfpd/1138/bopd/WC 0.52%. Produksi minyak terus mengalami penurunan seiring dengan peningkatan water cut yang mencapai hingga 98%. Untuk mendiagnostik permasalahan yang terjadi dilakukan plot diagnostik Chan. Plot diagnostik Chan merupakan plot Water Oil Ratio dan Water Oil Ratio derivatif terhadap waktu untuk mengetahui adanya peningkatan produksi air yang tidak normal. Berdasarkan plot Chan terdapat indikasi bahwa sumur ini mengalami water channeling berupa near borehole channeling, dan berdasarkan data log petrofisika dan log CBL diputuskan untuk melakukan remedial cementing pada interval zona target dan di antara zona target dan zona air. Berdasarkan indikator nilai amplitudo, variable density log, dan transit time, remedial cementing pada Sumur J-001 berhasil memperbaiki ikatan semen baik di zona target maupun di zona sekat air. Grafik kinerja produksi setelah remedial cementing menunjukkan adanya penurunan water cut dari 98% menjadi 87-90%. Produksi minyak mengalami kenaikan dari 3 bopd menjadi rata-rata 144 bopd. Plot diagnostik Chan Sumur J-001 setelah remedial menunjukkan nilai WOR dan WOR’ yang stabil sehingga dapat disimpulkan bahwa near borehole channeling yang terjadi pada Sumur J-001 dapat tertangani dengan baik.
PERFORMANCE COMPARISON ANALYSIS BETWEEN RSS AND CONVENTIONAL MUD MOTOR IN MAVVAR FIELD Raka Sudira Wardana; Bastian Andoni
PETRO:Jurnal Ilmiah Teknik Perminyakan Vol. 8 No. 3 (2019): SEPTEMBER
Publisher : Jurusan Teknik Perminyakan Fakultas Teknologi Kebumian dan Energi Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1837.352 KB) | DOI: 10.25105/petro.v8i3.5513

Abstract

Rotary Steerable System (RSS) has transformed the directional drilling industry by producing smoother borehole, reducing torque and drag and enhancing the Rate Of Penetration (ROP). Despite the advantages of using RSS, the conventional steerable motor is still widely used in deviated well due to its lower daily cost. Therefore, to optimize the performance and the cost of the drilling operation, it is critical to analyze when the RSS outweigh the conventional mud motor. This paper analyzes the performance between Rotary Steerable System and Conventional Steerable Motor, based on these following parameters: Rate of Penetration (ROP), overall drilling cost, borehole quality and lost in hole cost. This empirical study uses literature study and quantitative data analysis from several wells in Mavvar Field in compliment. The result shows that the Rotary Steerable System (RSS) provides better performance and more efficient in cost.
DETERMINING OF FORMATION WATER SATURATION TO ESTIMATE REMINING HYDROCARBON SATURATION IN THE X LAYER Y FIELD Ratnayu Sitaresmi; Guntur Herlambang Wijanarko; Puri Wijayanti; Danaparamita Kusumawardhani
PETRO:Jurnal Ilmiah Teknik Perminyakan Vol. 8 No. 3 (2019): SEPTEMBER
Publisher : Jurusan Teknik Perminyakan Fakultas Teknologi Kebumian dan Energi Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2494.495 KB) | DOI: 10.25105/petro.v8i3.5514

Abstract

Efforts are made to find the remaining hydrocarbons in the reservoir, requiring several methods to calculate the parameters of reservoir rock characteristics. For this reason, logging and core data are required. The purpose of this research is to estimate the Remaining Hydrocarbon Saturation that can be obtained from log data and core data. With several methods used, can determine petrophysical parameters such as rock resistivity, shale volume, effective porosity, formation water resistivity, mudfiltrate resistivity and rock resistivity in the flushed zone (Rxo) and rock resistivity in the Uninvaded Zone which will then be used to calculate the Water Saturation value Formation (Sw) and Mudfiltrat Saturation. (Sxo) In this study four exploratory wells were analyzed. Shale volume is calculated using data from Gamma Ray Log while effective Porosity is corrected for shale volume. Rw value obtained from the Pickett Plot Method is 0.5 μm. The average water saturation by Simandoux Method were 33.6%, 43.4%, 67.0% and 39.7% respectively in GW-1, GW-2, GW-3 and GW-4 wells. While the average water saturation value by the Indonesian Method were 43.9%, 48.8%, 72.3% and 44% respectively in GW-1, GW-2, GW-3 and GW-4 wells. From comparison with Sw Core, the Simandoux Method looks more appropriate. Average mudfiltrate (Sxo) saturation by Simandoux Method were 65.5%, 68.2%, 77.0% and 64.6% respectively in GW-1, GW-2, GW-3 and GW wells -4. Remaining Hydrocarbon Saturation (Shr) was obtained by 34.5%, 31.8, 23%, 35.4% of the results of parameters measured in the flushed zone namely Rxo, Rmf and Sxo data. For the price of Moving Hydrocarbons Saturation or production (Shm) is 31.9%, 24.8%, 10%, 24.9% in wells GW-1, GW-2, GW-3 and GW-4.
ANALISA PREDIKSI TEKANAN PORI FORMASI MENGGUNAKAN PERSAMAAN EATON Weny Astuti; Raka Sudira Wardana; Jan Friadi Sinaga
PETRO:Jurnal Ilmiah Teknik Perminyakan Vol. 8 No. 3 (2019): SEPTEMBER
Publisher : Jurusan Teknik Perminyakan Fakultas Teknologi Kebumian dan Energi Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1600.432 KB) | DOI: 10.25105/petro.v8i3.5515

Abstract

Prediksi tekanan abnormal formasi merupakan hal yang  penting pada operasi pengeboran. Prediksi tekanan pori formasi yang tepat bisa mencegah terjadinya permasalahan pada pengeboran seperti pipe sticking, lost circulation, kick hingga blowout. Tekanan pori formasi bisa diukur secara langsung melalui Repeat Formation Tester (RFT) atau Modular Dynamic Tester (MDT), namun hal ini proses ini tidak dilakukan di setiap kedalaman dan hanya bisa dilakukan setelah proses pengeboran selesai dilakukan. Untuk itu perlu dilakukannya prediksi tekanan pori formasi dengan menggunakan data – data logging menggunakan persamaan empiris. Salah satu persamaan yang umum digunakan yaitu persamaan Eaton (1975). Pada paper ini dibahas analisa prediksi tekanan formasi menggunaan persamaan Eaton untuk sumur X di lapangan Y. Hasil prediksi menunjukkan adanya zona tekanan pori abnormal pada sumur X.
PERHITUNGAN GAS IN PLACE DAN RECOVERY FACTOR PADA LAPANGAN CBM SUMUR X Yusraida Khairani Dalimunthe; Def Marshal; Ratnayu Sitaresmi
PETRO:Jurnal Ilmiah Teknik Perminyakan Vol. 8 No. 3 (2019): SEPTEMBER
Publisher : Jurusan Teknik Perminyakan Fakultas Teknologi Kebumian dan Energi Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1882.5 KB) | DOI: 10.25105/petro.v8i3.5516

Abstract

The Coal Bed Methane well X is a field developed by company A where 5 CBM test wells have been drilled. This CBM field development in 2004 by drilling wells to a depth of 3000ft, then in 2006 drilling was carried out for three test wells with an average depth of 3000ft. The research conducted at LEMIGAS aims to calculate coalbed methane reservoir reserves, calculation of reserves per seam, recovery factor, from each coal sample. The volumetric method is used in this research to calculate the methane gas reserves and Langmuir curve analysis is used to calculate the recovery factor. The target of this research is the CBM field in well X, where the well has 3 seams, namely seam-2, seam-3, and seam-4. In addition to calculating the value of methane gas reserves for each well, the methane gas reserves for each seam are also calculated. From the results of the calculation, it can be concluded that the largest value of gas in place is on seam 4 which is 573.2 MMscf and the smallest is on seam 2 which is 176.1 MMscf, then the largest recovery factor value is owned by seam 3 which is 91%.

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