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Study and application of miscible gel profile control
Author(s): LIU Jian-ping
Pages: 99-
101
Year: 2009
Issue:
z1
Journal: Special Oil & Gas Reservoirs
Abstract: 为解决超稠油蒸汽吞吐中后期油层动用不均、汽窜严重等问题,以提高蒸汽吞吐效果,特研制了混相凝胶调剖剂.该制剂由聚合物、交联剂、表面活性剂、气体生成剂组成.其在地层中能使自身的体积膨胀5倍左右,能够进入到普通凝胶无法进入的空间,达到调剖、封窜、增加地层压力的作用.室内实验与现场的应用表明,该制剂具有较好的封窜、助排作用,该技术在超稠油开采中后期应用前景广阔.
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