The Fault Effects on the Oil Migration in the Ultra-Deep Fuman Oilfield of the Tarim Basin, NW China

Yongfeng Zhu, Yintao Zhang, Xingxing Zhao (), Zhou Xie, Guanghui Wu (), Ting Li, Shuai Yang and Pengfei Kang
Additional contact information
Yongfeng Zhu: PetroChina Tarim Oilfield Company, Korla 841000, China
Yintao Zhang: PetroChina Tarim Oilfield Company, Korla 841000, China
Xingxing Zhao: PetroChina Tarim Oilfield Company, Korla 841000, China
Zhou Xie: PetroChina Tarim Oilfield Company, Korla 841000, China
Guanghui Wu: School of Geoscience and Technology, Southwest Petroleum University, Chengdu 610500, China
Ting Li: PetroChina Tarim Oilfield Company, Korla 841000, China
Shuai Yang: School of Geoscience and Technology, Southwest Petroleum University, Chengdu 610500, China
Pengfei Kang: PetroChina Tarim Oilfield Company, Korla 841000, China

Energies, 2022, vol. 15, issue 16, 1-15

Abstract: A giant, ultra-deep (>7000 m) strike-slip fault-related oilfield has been found in the central depression of the Tarim Basin. However, little research has addressed this discovery to understand the fault effects on the oil migration, which constrains the oil exploitation deployment and well optimization. Based on fault modeling and fluid analysis, we present the effects of fault segment on the oil segmentation and migration in the ultra-deep Fuman Oilfield. The results show a distinct fault segmentation and also subsequent variable fault architecture and non-connected fracture network other than a through-going fault zone. There are fault segment-related isolated fractured reservoirs and fluid variation along the fault strike, which indicates that a large oilfield comprises a series of unconnected small oil reservoirs along the fault segments. The fluid segmentation and molecular indicator of dibenzothiophenes reveal that there is a variable petroleum lateral migration along the strike-slip fault segment. The fault segmentation is a major contribution in the varied oil accumulation along the strike-slip fault zone in Fuman Oilfield. This case study suggests that fault segmentation has variable effects on petroleum migration and accumulation along the strike-slip zone.

Keywords: strike-slip fault; migration; ultra-deep; carbonate reservoir; segmentation; Tarim Basin (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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