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地面测斜仪在煤层气井组压裂裂缝监测中的应用
Application of surface tiltmeter in fracturing fractures surveillance for CBM well group
【摘要】 针对山西宁武区块煤层压裂施工中加砂困难,对裂缝扩展情况认识不足等难题,为了更好地认识煤层气井压裂裂缝的形态和扩展规律,指导该区块其他井组合理部署井网,优化压裂设计,采用地面测斜仪压裂裂缝监测技术,对宁武区块M15井组5口井压裂裂缝进行了监测,获得了该井组压裂裂缝的几何形态、方位、倾角等参数,进一步认识了该区块煤层气井压裂裂缝的复杂性,为部署井网和优化压裂设计提供了科学依据。
【Abstract】 Fracturing operation in the coal seam of Ningwu block in Shanxi province had problems of proppant input difficulty and inadequate understanding of fracture propagation.In order to have a better understanding of the shape and propagation of fracturing fractures,to guide wells placement in the block and to optimize fracturing design,surface tiltmeter was used to detect fracturing fractures in 5 wells of the M15 well group in Ningwu block,thus obtained fracturing parameters such as geometry,azimuth and dip.The result enables us to have a deep understanding of the complexity of fracturing fractures in coalbed methane(CBM) wells,and provides scientific reference for arranging well pattern and optimizing fracturing design.
【Key words】 surface tiltmeter; CBM well group; fracturing fractures; surveillance; Ningwu block;
- 【文献出处】 特种油气藏 ,Special Oil & Gas Reservoirs , 编辑部邮箱 ,2013年04期
- 【分类号】TE357.1
- 【网络出版时间】2013-06-04 08:52
- 【被引频次】7
- 【下载频次】184