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Process and Mechanisms of Deep Fluid Effects on Hydrocarbon Generation and Pore Space in Shale: A Case Study from the Mesoproterozoic Xiamaling Formation in the Zhaojiashan Section
投稿时间:2022-02-17  修订日期:2022-06-01  点此下载全文
引用本文:MENG Qingqiang,PANG Qian,HU Guang,JIN Zhijun,ZHU Dongya,LIU Jiayi,ZHANG Chuanwen.2022.Process and Mechanisms of Deep Fluid Effects on Hydrocarbon Generation and Pore Space in Shale: A Case Study from the Mesoproterozoic Xiamaling Formation in the Zhaojiashan Section[J].ACTA GEOLOGICA SINICA(English edition),96(4):1342~1352
摘要点击次数: 111
全文下载次数: 85
DOI:10.1111/1755-6724.14978
作者单位E-mail
MENG Qingqiang 1 State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development, SINOPEC, Beijing 100083, China 2 Petroleum Exploration and Product Research Institute, Sinopec, Beijing 102206, China mengqq.syky@sinopec.com 
PANG Qian 3 School of Geoscience and Technology, Southwest Petroleum University, Chengdu 637001, China  
HU Guang 3 School of Geoscience and Technology, Southwest Petroleum University, Chengdu 637001, China  
JIN Zhijun 1 State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development, SINOPEC, Beijing 100083, China 2 Petroleum Exploration and Product Research Institute, Sinopec, Beijing 102206, China 4 Institute of Energy, Peking University, Beijing 100871, China  
ZHU Dongya 1 State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development, SINOPEC, Beijing 100083, China 2 Petroleum Exploration and Product Research Institute, Sinopec, Beijing 102206, China  
LIU Jiayi 1 State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development, SINOPEC, Beijing 100083, China 2 Petroleum Exploration and Product Research Institute, Sinopec, Beijing 102206, China  
ZHANG Chuanwen 5 School of Energy, Chinese University of Geosciences (Beijing), Beijing 100083, China  
 
Author NameAffiliationE-mail
MENG Qingqiang 1 State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development, SINOPEC, Beijing 100083, China 2 Petroleum Exploration and Product Research Institute, Sinopec, Beijing 102206, China mengqq.syky@sinopec.com 
PANG Qian 3 School of Geoscience and Technology, Southwest Petroleum University, Chengdu 637001, China  
HU Guang 3 School of Geoscience and Technology, Southwest Petroleum University, Chengdu 637001, China  
JIN Zhijun 1 State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development, SINOPEC, Beijing 100083, China 2 Petroleum Exploration and Product Research Institute, Sinopec, Beijing 102206, China 4 Institute of Energy, Peking University, Beijing 100871, China  
ZHU Dongya 1 State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development, SINOPEC, Beijing 100083, China 2 Petroleum Exploration and Product Research Institute, Sinopec, Beijing 102206, China  
LIU Jiayi 1 State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development, SINOPEC, Beijing 100083, China 2 Petroleum Exploration and Product Research Institute, Sinopec, Beijing 102206, China  
ZHANG Chuanwen 5 School of Energy, Chinese University of Geosciences (Beijing), Beijing 100083, China  
Abstract:Heat carried by deep fluid might greatly affect hydrocarbon generation and pore space in shale. Dyke intrusion carrying high levels of heat may be a means by which to explore the influence of deep fluid on shale reservoirs. This study evaluates hydrocarbon generation and analyzed the evolution of shale storage space in the third member of the Xiamaling Formation in the Zhaojiashan section, Hebei Province, based on experimental data such as TOC, SEM, VRo, low-temperature N2 adsorption and high-pressure mercury injection. The results show that the dyke intrusion reduced the shale TOC content drastically―by up to 77%―and also induced instantaneous hydrocarbon generation over a range about 1.4 times the thickness of the intrusion. Furthermore, the dyke intrusion might transform organic pores in surrounding shales into inorganic pores. There were two shale porosity peaks: one appeared when VRo = 2.0%, caused by the increase of organic pores as thermal maturity increased, the other occurred when the VRo value was between 3% and 4%, caused by the increase of inorganic mineral pores. It can be concluded that dyke intrusion can be an effective tool with which to study how deep fluid affects instantaneous hydrocarbon generation and pore space in shale.
keywords:deep fluid, hydrocarbon generation, thermal effect, pore, Xiamaling Formation
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