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    • 10. 发明授权
    • Polymeric microspheres as degradable fluid loss additives in oilfield applications
    • 聚合微球作为油田应用中的可降解流体损失添加剂
    • US07703521B2
    • 2010-04-27
    • US12353810
    • 2009-01-14
    • Philip F. SullivanGary John TustinDon WilliamsonHemant K. Ladva
    • Philip F. SullivanGary John TustinDon WilliamsonHemant K. Ladva
    • E21B33/13E21B43/267
    • C09K8/512C09K8/516C09K8/685C09K8/887
    • Methods and apparatus for forming a fluid for use within in a subterranean formation including crosslinking a polymer along the surface of microspheres in a water-in-water emulsion and introducing the microspheres into the subterranean formation. Methods and apparatus for forming a fluid for use within in a subterranean formation including crosslinking a polymer along the surface of microspheres in a water in water emulsion, isolating the microspheres from the emulsion, and introducing the microspheres into the subterranean formation. Methods and apparatus for forming a fluid to treat a subterranean formation including introducing a crosslinkable polymer, partitioning agent, and crosslinker into a solvent, crosslinking the crosslinkable polymer, isolating beads of the crosslinkable polymer from the partitioning agent, introducing the beads into a fluid for treating a subterranean formation.
    • 用于形成在地下地层内使用的流体的方法和装置,包括在水包油乳液中沿着微球表面交联聚合物,并将微球引入地下地层。 用于形成在地层内使用的流体的方法和装置,包括在水包油乳液中沿着微球表面交联聚合物,从微乳液中分离出微球体,并将微球引入到地层中。 用于形成用于处理地下地层的流体的方法和装置,包括将可交联聚合物,分配剂和交联剂引入溶剂中,交联可交联聚合物,将可交联聚合物的珠子与分配剂隔离,将珠粒引入用于 处理地层。