发明名称 |
Well cementing methods using compositions containing liquid polymeric additives |
摘要 |
Methods of cementing subterranean zones penetrated by a well bores are provided. In accordance with the methods, a cement composition is prepared comprised of a hydraulic cement, sufficient water to form a slurry and an effective amount of a liquid fluid loss control additive comprised of an emulsion having a copolymer of N,N-dimethylacrylamide and 2-acrylamido-2-methylpropane sulfonic acid or a salt thereof contained therein. The cement composition is placed in a subterranean zone and then allowed to set into a hard impermeable mass therein.
|
申请公布号 |
US6268406(B1) |
申请公布日期 |
2001.07.31 |
申请号 |
US20000478862 |
申请日期 |
2000.01.07 |
申请人 |
HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
CHATTERJI JITEN;ZAMORA FRANK;KING BOBBY J.;MCKINLEY RITA J. |
分类号 |
C04B24/16;C04B24/26;C09K8/46;(IPC1-7):C09K7/00;C08J3/00;C08K3/00;C08L33/24;E21B33/13 |
主分类号 |
C04B24/16 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|