摘要
为了探究水锁效应的处理方向,总结了水锁效应的产生机理和影响因素,分析了当前水锁效应的处理方法,提出在超临界CO_2压裂液中添加膨胀剂的处理设想。超临界CO_2压裂法在一定程度上缓解了水锁效应;超临界CO_2与膨胀剂相结合能发挥各自优势,可提高页岩气开采效率。
To explore the treatment direction of water lock effect,summarizes the mechanism and influential elements of water lock effect and analyzes the ways to deal with water lock effect at current,and puts forward the treatment assumption to add expanding agent into supercritical CO2 fracturing fluid. Supercritical CO2 fracturing method can relieve water lock effect to some extent; the combination of supercritical CO2 and the expanding agent will give full play to their respective advantages and enhance the efficiency of shale gas exploitation.
作者
张培
李希建
沈仲辉
ZHANG Pei1,2, LI Xi-jian1,2, SHEN Zhong-hui1,2(1. Mining College, Guizhou University, Guiyang 550025, China; 2. Institute of Gas Disaster Prevention and CoMbed Methane Development, Guizhou University, Guiyang 550025, Chin)
出处
《煤炭技术》
CAS
2018年第4期88-90,共3页
Coal Technology
基金
贵州省重大应用基础研究项目(黔科合JZ字[2014]2005)
关键词
页岩气
低渗透
水锁效应
超临界CO2压裂
shale gas
low permeability
water lock effect
supercritical CO2 fracturing
作者简介
张培（1991-），贵州习水人，硕士研究生，研究方向页岩气开发．电子信箱：1192814496@qq．com．
