二次压裂改造技术在煤层气开发中的应用

Application of Secondary Fracturing Reconstruction Technology in Exploitation of Coalbed Methane

通过分析阳泉区块区域地质条件下煤系地层的成煤特征及瓦斯赋存规律,对煤层气井进行二次压裂改造及抽采效果分析。通过实验对比,认为二次压裂对于老井增产起到了一定的作用,但也需在施工工艺及区域地质条件研究等方面做进一步研究和完善。

By analysis of the coal-forming characteristics and gas occurrence law of the coal measure strata under the geological conditions of Yang Quan block area,the paper presents the secondary fracture transformation and analyzes the extraction effect in coalbed methane mine.By experimental comparison,it is concluded that secondary fracturing has certain effect on increasing production in old well,but further study is needed in construction technology and region geological conditions.