Perhitungan awal kandungan hidrokarbon dengan analisis petrofisika di sumur -x lapangan y
T Tujuan penulisan ini adalah untuk mengetahui parameter reservoir seperti porositas dan saturasi air yang digunakan untuk menghitung besarnya cadangan hidrokarbon berdasarkan interpretasi secara kualitatif dan kuantitatif hasil logging pada sumur-X. Data log yang digunakan adalah; Gamma Ray (GR), Spontaneus Potential (SP), Caliper (CALI), Resistivity Logs: Laterolog Deep (LLD), Laterolog Shallow (LLS), dan Micro SFL (MSFL), Porosity Logs: Density Log (RHOB), Thermal Neutron Porosity (TNPH), Delta-T (DT), Delta RHO (DRHO) dan Photoelectric Factor (PEF). Interpretasi dilakukan dengan menggunakan Software Interactive Petrophysics V3.5 Berdasarkan Interpretasi yang dilakukan terhadap data log sumur-X terdapat 2 (dua) lapisan permeabel, yaitu zona yang berisi gas dan zona berisi air. Dimana zona reservoir yang berisi gas terletak pada kedalaman 1430 – 1450.5 feet, dengan volume shale rata-rata 13.7%, porositas efektif rata-rata sebesar 37.8%. dan saturasi air rata-rata sebesar 44.3%. Berdasarkan data yang diproleh dimana bulk volume sebesar 6700 acreft maka, diperkirakan GIIP reservoir sebesar 7.5 BSCF. Dengan asumsi nilai recovery factor berdasarkan moveable hydrocarbon diperoleh recovery factor sebesar 35.81% sehingga besarnya cadangan yang dapat diambil sebesar 2.7 BSCF.
T The purpose this assignment is for knowing reservoir parameter to calculating hydrocarbon reserve from interpretation well logging data X well in Y field. Log data is used include; Gamma Ray (GR), Spontaneus Potential (SP), Caliper (CALI), Resistivity Logs: Laterolog Deep (LLD), Laterolog Shallow (LLS), and Micro SFL (MSFL), Porosity Logs: Density Log (RHOB), Thermal Neutron Porosity (TNPH), Delta-T (DT), Delta RHO (DRHO) dan Photoelectric Factor (PEF). These data logging will be analyzed by using Software Interactive Petrophysics V3.5. From Interpretation logging to log data X well, it is found that there are two permeable layers on X well: gas reservoir and water reservoir. Where is the reservoir zone is located in 1430 – 1450.5 feet, with ammount of value the average shale volume is 13.7%, The average effective porosity is 37.8% and the average of water saturation is 44.3%. From structure map, it is known that bulk volume is 6700 acreft,. Using this bulk volume data, porosity and saturation water which is calculated above, the GIIP reservoir where’s X well held is 7.5 BSCF. By assuming recovery factor equal with moveable hydrocarbon, 35.81%, it is found that gas reserve from the reservoir is 2.7 BSCF.