摘要
水平井分段压裂技术是解决低渗透油气藏的重要措施。虽然常规射孔方式在直井的应用中效果较好,但在水平井分段压裂的应用中,尤其是在煤层气水平井开发中问题突出。分析了常规射孔方式在储层中应力特点、裂缝特点等,根据储层特点,制定相应的定向射孔方式,可以有效的解决问题。例举了定向射孔在煤层气水平井的应用情况,与使用常规射孔的施工井进行对比,效果明显。
Horizontal well's separated fracturing technology is an important measure to solve the low permeability reservoir.Although the conventional perforation method is effective in the application of straight well,the problem of it in horizontal well,especially in coal-bed methane horizontal well,is prominent.The paper analyzes the stress and fracture characteristics of the conventional perforations in the reservoir and according to the its features,the corresponding directional perforation method can be developed to solve the problem effectively.The application of directional perforation in coal-bed methane horizontal well is presented,and the results are obvious compared with conventional perforation operation.
出处
《油气井测试》
2017年第4期66-69,共4页
Well Testing
关键词
水平井
分段压裂
压裂应力
常规射孔
定向射孔
horizontal well
separated fracturing
fracture stress
conventional perforation
directional perforation
