海上油田凝胶与微球组合调剖工艺实验研究

Fine and Specialty Chemicals(2022)

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Abstract
为了进一步提高油田调剖效果,通过3层非均质岩心研究了聚合物凝胶和微球单一封堵性能、组合注入性能以及组合调剖效果等.结果表明:聚合物凝胶成胶强度高,封堵性能好,可对优势水流通道进行封堵;微球膨胀性能好,对地层有一定封堵作用,可实现次级优势水流通道封堵.聚合物凝胶和微球组合注入,注入压力较低.与单一体系注入方式相比,采取组合注入方式,提高采收率增值最大,建议油田调剖采取组合注入工艺.
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