公开(公告)号：US20140311746A1

公开(公告)日：2014-10-23

申请号：US14258201

申请日：2014-04-22

Applicant: M-I L.L.C.

Inventor： Mark Ronald Luyster ,  Sooi Kim Lim ,  Clotaire-Marie Eyaa Allogo

IPC: C09K8/52 ,  E21B37/06

CPC classification number: C09K8/52 ,  E21B37/00

Abstract: A wellbore fluid for dissolving a filtercake includes a chelating agent and an aqueous solution of carboxylate salt. The concentration of the chelating agent is up to 50 percent volume per volume (v/v) in the aqueous solution of carboxylate salt. A method of treating a well includes preparing a wellbore fluid up to 50 percent volume per volume (v/v) chelating agent in an aqueous solution of carboxylate salt. The method further includes emplacing the wellbore fluid downhole such that the wellbore fluid dissolves a filtercake in the well.

Abstract translation: 用于溶解滤饼的井筒流体包括螯合剂和羧酸盐水溶液。 在羧酸盐水溶液中螯合剂的浓度高达体积（体积/体积）的50％。 一种处理井的方法包括在羧酸盐水溶液中制备高达50体积/体积（v / v）螯合剂的井筒流体。 该方法还包括将井眼流体置于井下，使井筒流体溶解于井中的滤饼。