丛连铸, 梁利, 卢拥军, 刘萍, 李安启. 氯化钾在煤层气井压裂中的作用[J]. 煤田地质与勘探, 2001, 29(2): 24-27.
引用本文: 丛连铸, 梁利, 卢拥军, 刘萍, 李安启. 氯化钾在煤层气井压裂中的作用[J]. 煤田地质与勘探, 2001, 29(2): 24-27.
shu
CONG Lian-zhu, LIANG Li, LU Yong-jun, LIU Ping, LI An-qi. The action of chlorinated potassium in CBM well fracturing operation[J]. COAL GEOLOGY & EXPLORATION, 2001, 29(2): 24-27.
Citation: CONG Lian-zhu, LIANG Li, LU Yong-jun, LIU Ping, LI An-qi. The action of chlorinated potassium in CBM well fracturing operation[J]. COAL GEOLOGY & EXPLORATION, 2001, 29(2): 24-27.
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氯化钾在煤层气井压裂中的作用

The action of chlorinated potassium in CBM well fracturing operation

    摘要
  • 摘要: 在油田以压裂作为增产措施中,KCl主要作为粘土稳定剂加入压裂液中。通过实验发现,在煤层气井压裂液中加入KCl不仅可作防止煤粉膨胀的稳定剂,还能改变煤基质对水溶液的吸附润湿特性,从而提高返排效率,减少对煤储层的伤害。

     

    Abstract: In fracturing operation in oil field,KCl serves as main clay stabilizer mixed in fracturing fluid.The experiment indicated,that KCl mixed in CBM well fracturing fluid plays not only as antisweling agent,but it can also change adsorption properties and water wetability of coal matrix,resulted in increasing back-discharge rate of reservoir and decreasing reservoir damage.

     

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