公开(公告)号：US20150191640A1

公开(公告)日：2015-07-09

申请号：US14591455

申请日：2015-01-07

Applicant: M-I, L.L.C.

Inventor： Lijein Lee ,  Balakrishnan Panamarathupalayam ,  Pawilai Chinwangso

IPC: C09K8/24 ,  E21B43/04 ,  E21B43/16 ,  E21B7/00

CPC classification number: C09K8/24 ,  E21B7/00 ,  E21B43/04 ,  E21B43/16

Abstract: A drilling fluid, comprising an aqueous continuous phase, a polymeric fluid loss control agent formed from at least an acrylamide monomer, and a sulfonated anionic monomer, and a gelling material comprising at least one of clay or a cross-linked polyvinylpyrrolidone.

Abstract translation: 包含水性连续相的钻井流体，由至少丙烯酰胺单体形成的聚合物流体损失控制剂和磺化阴离子单体，以及包含至少一种粘土或交联聚乙烯吡咯烷酮的胶凝材料。