公开(公告)号：US20100025038A1

公开(公告)日：2010-02-04

申请号：US12523349

申请日：2008-01-18

申请人： Patricia M. Savu ,  Michael J. Sierakowski ,  Arnold Wong

发明人： Patricia M. Savu ,  Michael J. Sierakowski ,  Arnold Wong

IPC分类号： E21B33/13

CPC分类号： E21B43/26 ,  C09K8/703

摘要： A method of treating a subterranean geological formation comprising hydrocarbons comprising injecting a foam into the formation at a rate and pressure sufficient to open at least one fracture therein and a method of completing a well in a subterranean geological formation penetrated by a well bore comprising introducing a foam into the well bore of the subterranean geological formation and carrying out a completion operation in the well bore of the subterranean geological formation. The foam comprises a liquid hydrocarbon and a nonionic polymeric surfactant comprising fluorinated repeating units, wherein the fluorinated repeating units have up to 5 perfluorinated carbon atoms, and wherein a one weight percent solution of the nonionic polymeric surfactant in kerosene has a foam half-life at 22° C. of at least 10 minutes.

摘要翻译： 一种处理包括烃的地下地质构造的方法，包括以足以在其中打开至少一个裂缝的速率和压力将泡沫注入地层中，以及在井眼穿透的地下地质构造中完成井的方法，包括引入 泡沫进入地下地质构造的井眼，并在地下地质构造的井眼中进行完井作业。 所述泡沫体包括液体烃和包含氟化重复单元的非离子聚合物表面活性剂，其中所述氟化重复单元具有至多5个全氟化碳原子，并且其中所述非离子聚合物表面活性剂在煤油中的1重量％溶液具有泡沫半衰期 22℃至少10分钟。