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All Journal Indonesian Journal Of Energy And Mineral
Purnomosidi Purnomosidi
Politeknik Energi & Mineral [PEM] Akamigas
Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Mechanical Engineering

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Ligno Sulphonate [SLS] Laboratory Testing For the Recovery of Residual Oil at Ledok Oil Field Edi Untoro; Purnomosidi Purnomosidi; Slamet Priyanto
Indonesian Journal of Energy and Mineral Vol. 1 No. 2 (2021): Indonesian Journal of Energy & Mineral
Publisher : Politeknik Energi dan Mineral Akamigas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53026/IJoEM/2021/1.2/895

Abstract

Fossil energy much still needed and exhalated in demand every year on industrial sector, household, and transportation in Indonesia. In the other hand, oil gas production has decreases as many of oil and gas reservoirs have saturated with water breakthrough. Therefore, Enhance Oil Recovery [EOR] as one of proposed solution is adopted to optimize the remaining reserves of oil wells exploitation, especially from mature field that has lesser production capacity towards production problems. Ledok field Cepu district, Central Java Indonesia has many mature wells that produce liquids with its water cut higher than 90 %. The objective of study is to determine which variables that are involve on black liquor or Sodium Ligno Sulphonate [SLS] application as surfactant for EOR on laboratory measurements. Core flooding measurements had been developed and measured. Crude, formation water, and SLS surfactant were injected into the artificial cores. FTIR test show appearance of Sulphonate and Ether alkyl in its composition. Preliminary results show the surfactant has optimum performance to recover oil up to 79% with IFT value 10-1 dyne/cm.
Evaluation and optimization of Plug and Abandon of well XX-01 on DELTA Field Bima Putra Buana; Purnomosidi Purnomosidi; Akhmad Sofyan
Indonesian Journal of Energy and Mineral Vol. 1 No. 2 (2021): Indonesian Journal of Energy & Mineral
Publisher : Politeknik Energi dan Mineral Akamigas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53026/IJoEM/2021/1.2/896

Abstract

Plug and abandon operation may need to be applied on mature wells which have decreased oil and gas production less than others in economic benefits or exploration wells that may need to be side tracked with an option of new trajectory. This study evaluated and optimized cementing technique that being used on plug and abandon operation for well XX-01 which its location is on Delta Mahakam Field. The XX -01 well can’t be produced due to water breakthrough at its current producing layers, therefore, there will be a future sidetrack drilling as deepening project. Study results show that probability leakage rate is 5.76E-07 m3/s (0,000000576 m3/s) and according to ALARP triangle, the probability leakage rate of well XX-01 is on the acceptable risk zone therefore can be considered as a safe operation to be executed.
Remaining Reserves Drainage Optimization Using Infill Drilling Based on Subsurface Study Field Ana Megawanti Haryuni; Erdila Indriani; Purnomosidi Purnomosidi
Indonesian Journal of Energy and Mineral Vol. 1 No. 2 (2021): Indonesian Journal of Energy & Mineral
Publisher : Politeknik Energi dan Mineral Akamigas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53026/IJoEM/2021/1.2/897

Abstract

The XY Field is an oil field in the Sunda Basin which was developed since 1981 and has been produced in the Baturaja carbonate layer and Talang Akar sandstone layer. Decreasing the amount of oil production in the reservoir can have a detrimental impact on the company so it is necessary to analyze the remaining reserves of the reservoir. The calculation used to evaluate the remaining reserves use the Volumetric, Material Balance and Decline Curve methods. From the three methods, the results that are close to the reserve of the XY field reservoir are 14 MMSTB. OOIP is obtained from the volumetric method and material balance which is divided into P10, P50 and P90. The reserve OOIP for P10 is 110.8 MMSTB and P90 is 60.34 MMSTB, with the last cumulative production in December 2019 being 9.3 MMSTB, where the economic limit of the field is 46 bbl. / day and the contract will be expired in 2038. From the results of the subsurface analysis, the four infill wells are candidates for infill wells because they have hydrocarbon potential. Then in terms of economics this development scenario is feasible to be developed with NPV reaching 9,140 MUSD, the ROR reaching 41% for PSC and 60% for Gross Split, and increases field recovery factor (RF) up to 56%.
Co-Authors Akhmad Sofyan Ana Megawanti Haryuni Bima Putra Buana Edi Untoro Erdila Indriani Slamet Priyanto