The Brittleness Evaluation of Sand and Shale based on the Stress-Strain Curve in Fifth Member of Xuj

• 作 者: ZHANG Haotian ZHOU Wen ZHAO Cheng
• 机 构: College of Energy Resource,Chengdu University of Technology,State key Laboratory of Oil and Gas Rese
• 出 处: Acta Geologica Sinica(English Edition)
• 发表日期: 2015年S1期
• 关键词: reversible shale hydraulic Strain fracturing rock drilling minerals brittle comp

Brittleness index is a very important parameter for horizontal well drilling,hydraulic fracturing and production prediction of gas shale.The evaluation methods for rock’s brittleness through testing are as follows:(1)the characteristics of stress-strain curve,such as the ratio of reversible strain to total strain;(2)the result

Brittleness index is a very important parameter for horizontal well drilling, hydraulic fracturing and production prediction of gas shale. The evaluation methods for rock’s brittleness through testing are as follows: (1) the characteristics of stress-strain curve, such as the ratio of reversible (2) the result