摘要
为了更好地对深井围岩中的微小裂隙进行注浆封堵,利用ABAQUS数值模拟软件,基于水力压裂理论,以靖边地区深为1 500 m左右的砂岩为例,通过建立水力压裂数值模型,对裂隙的扩展情况进行模拟。结论表明:在地应力、水力压力、弹性模量的影响下,裂隙的扩展具有明显规律性,而天然裂缝对裂隙扩展的影响较小。
To better seal and plug micro fractures in the surrounding rock of deep wells,the numerical simulation software ABAQUS is used to simulate the expansion of fractures by establishing a hydraulic fracturing numerical model for the sandstone about 1 500 m in Jingbian Area based on the hydraulic fracturing theory.The conclusion shows that,under the influence of in-situ stress,hydraulic pressure and elastic modulus,fracture propagation has obvious law,while natural fracture has little effect on fracture propagation.
作者
吴岳
王中原
陈姿君
WU Yue;WANG Zhongyuan;CHEN Zijun(Shandong Key Laboratory of Civil Engineering Disaster Prevention and Mitigation,Shandong University of Science and Technology,Qingdao266590,China;School of Civil Engineering and Architecture,Shandong University of Science andTechnology,Qingdao266590,China;Taishan College of Shandong Province,Tai’an271021,China)
出处
《煤矿安全》
CAS
北大核心
2019年第9期222-227,共6页
Safety in Coal Mines
关键词
深部砂岩
水力压裂
裂缝扩展
弹性模量
数值模拟
deep sandstone
hydraulic fracturing
fracture propagation
elasticity modulus
numerical simulation
