特低渗透强敏感性地层压裂工艺技术研究  

FRACTURING TECHNOLOGY OF ULTRA-LOW PERMEABILITY AND STRONG SENSIBILITY RESERVOIR

作　　者：黄超[1,2] 宋振云[1,2] 汪小宇[1,2] 柴巧玲[1,2] 文果[1,2] 王坤[1,2] 

机构地区：[1]低渗透油气田勘探开发国家工程实验室 [2]川庆钻探工程公司钻采工程技术研究院

出　　处：《钻采工艺》2011年第3期32-34,114,共3页Drilling & Production Technology

摘　　要：H区块属于特低渗强敏感性气藏,目前处于勘探认识阶段。由于前期对地层认识不清和压裂工艺缺乏针对性等问题,没有取得明显的勘探成果。通过综合工艺方案优选、参数优化、针对性的降滤失措施、测试压裂技术、压裂液优化等措施,形成了针对性较强的压裂工艺技术,为今后开展进一步研究打下了基础。建议对该区块开展CO2泡沫或CO2干法(纯CO2)压裂等试验,进一步提高压裂效果,达到充分认识储层的目的。H block belongs to ultra-low permeability and strong sensibility reservoir, the obvious exploration result wasn't gained, because the cognition to the reservoir features was unclear and the fracturing technology lacked objectiveness in the early stage. By means of the optimization of comprehensive fracturing technology, parameter and fracturing fluid technology, using reducing filtration treatment and test fracturing technology etc., the specific fracturing technology suited for H block was formed. In order to improve the postfracture response and know reservoir fully, some suggestion on fracturing test was put forward, such as CO2 foam fracturing and pure CO2 fracturing test etc.

关 键 词：特低渗 强敏感 压裂工艺 优化 返排 

分 类 号：TE357[石油与天然气工程—油气田开发工程]