Fracture development in shale and its relationship to gas accumulation

• Published in: Di xue qian yuan. Vol. 3; no. 1; pp. 97 - 105
• Main Authors: Ding, Wenlong, Li, Chao, Li, Chunyan, Xu, Changchun, Jiu, Kai, Zeng, Weite, Wu, Liming
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 2012; School of Energy, China University of Geosciences, Beijing 100083, China
• Subjects: Basins; Brittle fracture; Correlation; Dominant factor; Fracture; Fracture mechanics; Gas accumulation; Gas production; Natural gas; Poissons ratio; Quartz; Shale; 天然气成藏; 天然气生产; 断裂带; 杨氏模量; 正相关关系; 自由气体; 裂缝发育程度; 页岩气; Gas production; Dominant factor; Fracture; Gas accumulation; Shale

Shale with high quartz, feldspar and carbonate, will have low Poisson＇s ratio, high Young＇s modulus and high brittleness. As a result, the shale is conducive to produce natural and induced fractures under external forces. In general, there is a good correlation between fracture development in shale...