Multilayer Superimposition Patterns of Strike-Slip Fault Zones and Their Petroleum Geological Significance in Platform Area, Tarim Basin

新疆石油地质 ›› 2024, Vol. 45 ›› Issue (zk(English)): 14-27.

• OIL AND GAS EXPLORATION • 上一篇下一篇

Multilayer Superimposition Patterns of Strike-Slip Fault Zones and Their Petroleum Geological Significance in Platform Area, Tarim Basin

YANG Haijun^1,2,3, NENG Yuan⁴, SHAO Longfei⁵, XIE Zhou^2,3,6, KANG Pengfei^2,3,6, YUAN Jingyi^2,3,6, FU Yonghong⁵

1. Tarim Oilfield Company, PetroChina, Korla, Xinjiang 841000, China;
2. R&D Center for Ultra-Deep Complex Reservoir Exploration and Development, CNPC, Korla, Xinjiang 841000, China;
3. Xinjiang Engineering Research Center for Ultra-Deep Complex Reservoir Exploration and Development, Korla, Xinjiang 841000, China;
4. School of Petroleum, Karamay Campus, China University of Petroleum (Beijing), Karamay, Xinjiang 834000, China;
5. School of Geosciences, China University of Petroleum (Beijing), Beijing 102249, China;
6. Research Institute of Exploration and Development, Tarim Oilfield Company, PetroChina, Korla, Xinjiang 841000, China

收稿日期:2024-03-14 修回日期:2024-04-21 出版日期:2025-01-01 发布日期:2025-09-08

Multilayer Superimposition Patterns of Strike-Slip Fault Zones and Their Petroleum Geological Significance in Platform Area, Tarim Basin

YANG Haijun^1,2,3, NENG Yuan⁴, SHAO Longfei⁵, XIE Zhou^2,3,6, KANG Pengfei^2,3,6, YUAN Jingyi^2,3,6, FU Yonghong⁵

1. Tarim Oilfield Company, PetroChina, Korla, Xinjiang 841000, China;
2. R&D Center for Ultra-Deep Complex Reservoir Exploration and Development, CNPC, Korla, Xinjiang 841000, China;
3. Xinjiang Engineering Research Center for Ultra-Deep Complex Reservoir Exploration and Development, Korla, Xinjiang 841000, China;
4. School of Petroleum, Karamay Campus, China University of Petroleum (Beijing), Karamay, Xinjiang 834000, China;
5. School of Geosciences, China University of Petroleum (Beijing), Beijing 102249, China;
6. Research Institute of Exploration and Development, Tarim Oilfield Company, PetroChina, Korla, Xinjiang 841000, China

Received:2024-03-14 Revised:2024-04-21 Online:2025-01-01 Published:2025-09-08
About author:YANG Haijun, E-mail: yanghaij-tlm@petrochina.com.cn

摘要/Abstract

Abstract: In recent years, with the progress of oil and gas exploration in the Tarim basin, large-scale strike-slip fault systems have been discovered in the Paleozoic strata of the platform area in the basin and a new type of fault-karst reservoir has been identified. Due to multiple tectonic movements in the basin, these strike-slip faults exhibit multilayer structures featured with multiple phase superimposition. Based on high-quality 3D seismic data, drilling data, and petroleum geological data, the multilayer superimposition of large-scale strike-slip faults in the basin and its controls over hydrocarbon accumulation were investigated. The research results show that the strike-slip fault zones in the platform area of the Tarim basin primarily develop five structural layers in the Paleozoic: Lower Cambrian pre-salt structural layer, Middle Cambrian salt structural layer, Upper Cambrian-Middle Ordovician carbonate structural layer, Upper Ordovician-Carboniferous clastic structural layer, and Permian magmatite structural layer. Affected by multiple tectonic movements and strike-slip fault activities, these layers exhibit characteristics of banded spatial distribution, vertical superposition, and differential superimposition. The superimposition patterns can be broadly categorized into four types: connection, overlapping, inverse superimposition, and inverse reformation. These superimposition patterns have significant impacts on hydrocarbon accumulation, and three types of reservoirs such as Type Ⅰ (Ordovician carbonate reservoirs), Type Ⅱ (Ordovician carbonate, Silurian clastic, and Permian magmatite reservoirs), and Type Ⅲ (Cambrian pre-salt dolomite reservoirs) are formed.

Key words: Tarim basin, platform area, strike-slip fault zone, multilayer structure, tectonic style, superimposition pattern, genetic mechanism, hydrocarbon accumulation model

YANG Haijun, NENG Yuan, SHAO Longfei, XIE Zhou, KANG Pengfei, YUAN Jingyi, FU Yonghong. Multilayer Superimposition Patterns of Strike-Slip Fault Zones and Their Petroleum Geological Significance in Platform Area, Tarim Basin[J]. 新疆石油地质, 2024, 45(zk(English)): 14-27.

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Multilayer Superimposition Patterns of Strike-Slip Fault Zones and Their Petroleum Geological Significance in Platform Area, Tarim Basin

Multilayer Superimposition Patterns of Strike-Slip Fault Zones and Their Petroleum Geological Significance in Platform Area, Tarim Basin

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