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All Journal Journal of Petroleum and Geothermal Technology
Afif, Nanda Najih Habibil
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Earth & Planetary Sciences Energy Engineering

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FEED ZONE CHARACTERIZATION BASED ON PTS FLOWING DATA AND GEOLOGICAL DATA OF WELL DRILLING A FIELD B Phasya, Fauji Islami; Afif, Nanda Najih Habibil; Sari, Riska Laksmita; Abror, Hadziqul
Journal of Petroleum and Geothermal Technology Vol. 5 No. 2 (2024): November
Publisher : Universitas Pembangunan Nasional "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/jpgt.v5i2.13044

Abstract

Kamojang Geothermal is an active production field owned by PT Pertamina Geothermal Energy that contains 1 steam-phase fluid. This field often conducts production tests, one of which is the PTS flow test. This study aims to determine the relationship between the potential size of the feed zone and mineralogy. This research method begins with calculating and analyzing the flowing PTS. After the PTS calculation is complete, it is continued by making a composite log graph from the drilling geology data. The results show that the characteristics of reservoir mineral rocks are the appearance of epidote minerals and the caprock section is characterized by the appearance of clay minerals. In the reservoir zone, the feed zone was found at a depth of 1300 mMD and 844 mMD with mass rates of 62 t/h and 11.19 t/h, respectively. The distribution of the feed zone was found to contain epidote minerals as much as 1% of 67% of the altered andesite rock at a depth of 844 mMD and epidote minerals as much as 15% of 79% of the altered breccia rock at a depth of 1300 mMD.
Co-Authors Hadziqul Abror Phasya, Fauji Islami Riska Laksmita Sari