Crosslinked N-vinylpyrrolidone polymers for use in subterranean formations and wells
申请人:Halliburton Energy Services, Inc.
公开号:US10017680B2
公开(公告)日:2018-07-10
Crosslinked polymers that may be useful, for example, as viscosifiers or fluid-loss control additives for well treatment and servicing fluids are provided. In one embodiment, the methods comprise: providing a treatment fluid comprising a base fluid and a crosslinked polymer composition comprising at least one polymer that comprise at least one N-vinyl lactam monomeric unit, and at least one crosslinker selected from the group consisting of: an acrylamide-based crosslinker, an acrylate-based crosslinker, an ester-based crosslinker, an amide-based crosslinker, any derivative thereof, and any combination thereof; and introducing the treatment fluid into at least a portion of a wellbore penetrating at least a portion of a subterranean formation.
本发明提供了可用作油井处理液和维修液的增粘剂或流体流失控制添加剂的交联聚合物。在一个实施方案中,这些方法包括:提供一种处理液,该处理液包含基础液和交联聚合物组合物,交联聚合物组合物包含至少一种聚合物,该聚合物包含至少一个 N-乙烯内酰胺单体单元,以及至少一种交联剂,该交联剂选自由以下组成的组:丙烯酰胺基交联剂、丙烯酸酯基交联剂、酯基交联剂、酰胺基交联剂、它们的任何衍生物以及它们的任何组合;以及将处理液引入穿透地下地层至少一部分的井筒的至少一部分。