川西坳陷源内油气成藏主控因素及模式：以孝泉-丰谷构造带须家河组五段为例

田杨; 朱宏权; 叶素娟; 卓俊驰; 谢锐杰; 熊剑文

doi:10.3799/dqkx.2020.257

Volume 46 Issue 7

Jul. 2021

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Article Navigation > Earth Science > 2021 > 46(7): 2494-2506

Tian Yang, Zhu Hongquan, Ye Sujuan, Zhuo Junchi, Xie Ruijie, Xiong Jianwen, 2021. Main Controlling Factors and Models of Hydrocarbon Accumulation in the Source of Western Sichuan Depression: Taking Xu 5th Member of Xujiahe Formation in Xiaoquan-Fenggu Structural Belt as an Example. Earth Science, 46(7): 2494-2506. doi: 10.3799/dqkx.2020.257

Citation:

Tian Yang, Zhu Hongquan, Ye Sujuan, Zhuo Junchi, Xie Ruijie, Xiong Jianwen, 2021. Main Controlling Factors and Models of Hydrocarbon Accumulation in the Source of Western Sichuan Depression: Taking Xu 5th Member of Xujiahe Formation in Xiaoquan-Fenggu Structural Belt as an Example. Earth Science, 46(7): 2494-2506. doi: 10.3799/dqkx.2020.257

Citation:

Tian Yang, Zhu Hongquan, Ye Sujuan, Zhuo Junchi, Xie Ruijie, Xiong Jianwen, 2021. Main Controlling Factors and Models of Hydrocarbon Accumulation in the Source of Western Sichuan Depression: Taking Xu 5th Member of Xujiahe Formation in Xiaoquan-Fenggu Structural Belt as an Example. Earth Science, 46(7): 2494-2506. doi: 10.3799/dqkx.2020.257

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Main Controlling Factors and Models of Hydrocarbon Accumulation in the Source of Western Sichuan Depression: Taking Xu 5th Member of Xujiahe Formation in Xiaoquan-Fenggu Structural Belt as an Example

doi: 10.3799/dqkx.2020.257

1.
Cooperative Innovation Center of Unconventional Oil and Gas, Yangtze University, Wuhan 430100, China
2.
Exploration and Production Research Institute, Sinopec Southwest Oil & Gas Company, Chengdu 610041, China
3.
School of Geophysics and Petroleum Resource, Yangtze University, Wuhan 430100, China

Received Date: 2020-08-29
Publish Date: 2021-07-15

Abstract

Abstract

Xujiahe Formation of the Upper Triassic is the main source rock series of the West Sichuan depression, while Xujiahe Formation of the Xiaoquan-Fenggu structural belt is a new field of exploration and development of tight sandstone gas in the West Sichuan depression. Based on the data of geology, logging, drilling and analysis, combined with basin simulation technology, and the analysis of source rock, reservoir characteristics and its development structure sedimentary background in the fifth member of Xujiahe Formation, Xiaoquan Fenggu structural belt, this paper discusses the main controlling factors of reservoir formation in the fifth member of Xujiahe Formation, and establishes the corresponding model. The shale of Xuwu member is continuously and stably distributed, with high organic matter abundance. The type of organic matter is mainly Ⅲ, which is generally in the stage of maturity to high maturity. The sandstone reservoir is generally ultra-low porosity and ultra-low permeability tight reservoir, and the sedimentary facies is mainly delta front subfacies. The main controlling factor of hydrocarbon accumulation in Xuwu member is that the source rock controls the range and scale of gas reservoir, the favorable facies zone determines the location of high quality reservoir, the source reservoir configuration relationship controls the degree of oil and gas enrichment, and the abnormal high pressure is effectively preservation and reservoir reconstruction; the accumulation mode is summarized as short-distance vertical superposition accumulation mode in the source.
- western Sichuan depression,
- Xujiahe Formation,
- reservoir formation in source,
- main controlling factors,
- petroleum geology

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Main Controlling Factors and Models of Hydrocarbon Accumulation in the Source of Western Sichuan Depression: Taking Xu 5th Member of Xujiahe Formation in Xiaoquan-Fenggu Structural Belt as an Example

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