焦坪矿区煤储层水力压裂施工工艺优化

Optimization of Hydraulic Fracturing Construction Process in Coal Reservoir of Jiaoping Mining Area

摘要: 通过对焦坪矿区煤储层的研究，发现煤储层具有煤阶低、厚度大、含气量低的特征，最小主应力场方向为北西-南东方向；利用FracproPT 2007三维压裂软件对煤层水力压裂施工中的施工排量、前置液量、砂比等施工工艺进行优化，分析了各个因素对压裂效果的影响，现场应用表明，大排量、大砂量、中砂比的施工工艺起到了明显的增产效果。
- 焦坪矿区 /
- 煤储层 /
- 水力压裂 /
- 施工工艺 /
- 优化
Abstract: Through the research of coal reservoir in Jiaoping mining area, we found that the coal reservoir has characteristics of low-rank coal, large thickness, low gas content, and the minimum principal stress field is north west-south east direction; we optimized the construction technology of hydraulic fracturing in coal seam by using FracproPT 2007 three-dimensional fracturing software including the construction displacement, prepad fluid volume, sand ratio; through the analysis of the data, we obtain the influence of various factors on the fracturing effect and verify by practical examples, which proves that the optimization results that large displacement, high sand content, medium sand ratio of construction process plays a significant effect of increasing yield.
- Jiaoping mining area /
- coal reservoir /
- hydraulic fracturing /
- construction process /
- optimization

[1]	傅雪海，秦勇，韦重韬.煤层气地质学[M].徐州：中国矿业大学出版社，2007.
[2]	倪小明，苏现波，张小东.煤层气开发地质学[M].北京：化学工业出版社，2009：88-89.
[3]	宋志刚，张群，黄河，等.焦坪矿区侏罗纪煤层地面井组瓦斯预抽采技术研究与应用综合研究报告[R].西安：中煤科工集团西安研究院有限公司，2012.
[4]	雷益龙，陈北平.焦坪矿区下石节煤矿JPC-01井煤储层基本参数分析[J].中国煤炭地质，2011（10）:38.
[5]	乌效鸣.煤层气井水力压裂计算原理及应用[M].武汉：中国地质大学出版社，1997.
[6]	焦中华，倪小明.煤层气垂直井压裂优化系统的设计与实现[J].煤炭科学技术，2011（7）：81.
[7]	郭凯.低渗煤层气储层压裂参数优化研究-以河南焦作地区为例[D].青岛：山东科技大学2011:70.
[8]	单学军，张士诚，张遂安，等.华北地区煤层气井压裂裂缝监测及其扩展规律[J].煤田地质与勘探，2005（10）:28.