A Study On Fracture Initiation Of Hydraulic Fracturing For Deviated Wells With Openhole Completion

摘要：

Considering the influence of porosity, pore pressure and filtration effect of fracturing fluid on Stress distribution around deviated wellbores, applying the generalized plain strain theory and porous elastic theory this paper establishes the predicting model of fracture initiation pressure according to the law of maximum tensile stress. The results shows: the porosity and pore pressure changes around wellbore when the fluid penetration into the porous formation and it makes fracture initiation pressure declined, if the inclination of the wellbore axis is less than 30°, the fracture breakdown pressure increases a little and it is not neglected that the fracture breakdown pressure increases remarkably account for the deviation angle is above 50°.

关键词： deviated well breakdown pressure open hole completion filtration effect fracturing fluid

作者: Wang Yungang Hu Yongquan Zhao Jinzhou

作者单位: College of Petroleum Engineering,Southwest Petroleum University,Chengdu,Sichuan,610500,China State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation·Southwest Petroleum Universit

会议类型: 国内会议

会议名称: 2007年油气藏地质及开发工程国家重点实验室第四次国际学术会议

会议地点: 成都

会议语种:英文

页码: 395-398

在线出版日期: 2007-10-20（万方平台首次上网日期，不代表论文的发表时间）