公开(公告)号：EP2596075A1

公开(公告)日：2013-05-29

申请号：EP11740700.7

申请日：2011-07-21

申请人： Halliburton Energy Services, Inc.

发明人： PATIL, Rahul, Chandrakant ,  PATIL, Sandip, Prabhakar ,  ARMSTRONG, Keith

IPC分类号： C09K8/48 ,  C04B14/30 ,  C04B14/32 ,  C04B28/04

CPC分类号： C04B22/00 ,  C04B28/04 ,  C04B2103/0028 ,  C04B2111/00275 ,  C04B2111/00293 ,  C09K8/48 ,  C04B14/303 ,  C04B14/324 ,  C04B14/368 ,  C04B22/0026

摘要： A method of cementing in a subterranean formation comprising the steps of: (A) introducing a cement composition into the subterranean formation, the cement composition comprising: (i) cement; (ii) water; and (iii) a high-density additive selected from the group consisting of silicon carbide, sintered bauxite, and any combination thereof, wherein the cement composition has a density of at least 16 pounds per gallon; and (B) allowing the cement composition to set. According to an embodiment, the high-density additive is in a concentration of at least 30% by weight of the cement. A cement composition for use in an oil or gas well comprises: (A) cement; (B) water; and (C) a high-density additive selected from the group consisting of silicon carbide, sintered bauxite, and a combination thereof, wherein the high-density additive is in a concentration of at least 30% by weight of the cement, and wherein the cement composition has a density of at least 16 pounds per gallon.