煤田地质与勘探2018，Vol.46Issue(2)：15-21,7.DOI:10.3969/j.issn.1001-1986.2018.02.003
黔西北多层薄煤储层暂堵转向压裂技术应用
Application of temporary plugging and diverting fracturing technology for multiple and thin coal reservoir in northwestern Guizhou
李特社 1胡刚 2王少雷 2李玉魁 2李启国 3王理国 1唐兆青1
作者信息
- 1. 贵州省非常规天然气勘探开发利用工程研究中心,贵州贵阳 550081
- 2. 贵州天然气能源投资股份有限公司,贵州贵阳 550081
- 3. 北京泰坦通源天然气资源技术有限公司,北京 100000
- 折叠
摘要
Abstract
In the northwest of Guizhou Province,the coal seam has multiple layers,is thin in single layer,heterogeneous and so on,in order to explore the economic and efficient coal seam fracturing technology,application technique of temporary plugging and longitudinal diverting fracturing for coal seam is studied.Combined with the characteristics of diverting fracturing technology,this paper analyzed the applicability from four aspects:coal seam fracture form,mechanical shielding,perforation interval and coal structure.In order to ensure that the temporary plugging and diverting fracturing can link up more coal seams to achieve homogeneous transformation of coal seam and fracturing horizontal seam for longer extension,we optimize the combination of temporary plugging agent and the amount of materials.Meantime,two CBM wells were selected to carry out mechanical and chemical temporary plugging and diverting fracturing field application test.The results show that the combination mode of chemical temporary plugging agent can meet the requirements of longitudinal(interlayer)diverting fracturing process,and obtain good application effect,which provides effective technical support for the fracturing reformation of the thin coal reservoir in Guizhou.关键词
黔西北/煤层气/纵向暂堵/转向压裂Key words
northwest of Guizhou/coalbed methane/longitudinal temporary plugging/diverting fracturing分类
能源科技引用本文复制引用
李特社,胡刚,王少雷,李玉魁,李启国,王理国,唐兆青..黔西北多层薄煤储层暂堵转向压裂技术应用[J].煤田地质与勘探,2018,46(2):15-21,7.
