Quantitative multiparameter prediction of fault-related fractures： a case study of the second member of the Funing Formation in the Jinhu Sag, Subei Basin

作     者：Jing-Shou Liu Wen-Long Ding Jun-Sheng Dai Yang Gu Hai-Meng Yang Bo Sun 

作者机构：School of Energy Resources China University of Geosciences Beijing 100083 China Key Laboratory for Marine Reservoir Evolution and Hydrocarbon Abundance Mechanism Ministry of Education China University of Geosciences Beijing 100083 China Beijing Key Laboratory of Unconventional Natural Gas Geology Evaluation and Development Engineering China University of Geosciences Beijing 100083 China Key Laboratory for Shale Gas Exploitation and Assessment Ministry of Land and Resources China University of Geosciences Beijing 100083 China School of Geosciences China University of Petroleum Qingdao 266580 Shandong China Oil Recovery Plant No.3 Zhongyuan Oilfield Co. LtdSINOPEC Puyang 457001 Henan China CNOOC Energy Technology and Services-Drilling and Production Co. Tianjin 300452 China 

出 版 物：《Petroleum Science》 (石油科学（英文版）)

年 卷 期：2018年第15卷第3期

页      面：468-483页

核心收录：

学科分类：0709[理学-地质学] 0819[工学-矿业工程] 0808[工学-电气工程] 08[工学] 0820[工学-石油与天然气工程] 0707[理学-海洋科学] 0817[工学-化学工程与技术] 0818[工学-地质资源与地质工程] 0708[理学-地球物理学] 0807[工学-动力工程及工程热物理] 0815[工学-水利工程] 0816[工学-测绘科学与技术] 0827[工学-核科学与技术] 0813[工学-建筑学] 0703[理学-化学] 0814[工学-土木工程] 0825[工学-航空宇航科学与技术] 0704[理学-天文学] 082002[工学-油气田开发工程] 

基　　金：supported by the Fundamental Research Funds for the Central Universities (2652017308) the National Natural Science Foundation of China (Grant Nos. 41372139 and 41072098) the National Science and Technology Major Project of China (2016ZX05046-003-001 and 2016ZX05034-004003) 

主　　题：Fault-related fracture Quantitative prediction Development pattern Multiscale fracture Numerical simulation Jinhu Sag 

摘      要：In this paper, the analysis of faults with different scales and orientations reveals that the distribution of fractures always develops toward a higher degree of similarity with faults, and a method for calculating the multiscale areal fracture density is proposed using fault-fracture self-similarity theory. Based on the fracture parameters observed in cores and thin sections, the initial apertures of multiscale fractures are determined using the constraint method with a skewed distribution. Through calculations and statistical analyses of in situ stresses in combination with physical experiments on rocks, a numerical geomechanical model of the in situ stress field is established. The fracture opening ability under the in situ stress field is subsequently analyzed. Combining the fracture aperture data and areal fracture density at different scales, a calculation model is proposed for the prediction of multiscale and multiperiod fracture parameters, including the fracture porosity, the magnitude and direction of maximum permeability and the flow conductivity. Finally, based on the relationships among fracture aperture,density, and the relative values of fracture porosity and permeability, a fracture development pattern is determined.