The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 11, 2011
Filed:
Feb. 27, 2003
Prentice G. Creel, Odessa, TX (US);
Charles L. Boatman, Houston, TX (US);
Richard H. Tate, Brownfield, TX (US);
Eldon Dwyann Dalrymple, Duncan, OK (US);
Stephen P. Luscombe, Midland, TX (US);
John L. Eubank, Hobbs, NM (US);
Prentice G. Creel, Odessa, TX (US);
Charles L. Boatman, Houston, TX (US);
Richard H. Tate, Brownfield, TX (US);
Eldon Dwyann Dalrymple, Duncan, OK (US);
Stephen P. Luscombe, Midland, TX (US);
John L. Eubank, Hobbs, NM (US);
Halliburton Energy Services Inc., Duncan, OK (US);
Abstract
Methods of cementing in subterranean formations, cement compositions, and methods for making the compositions are provided. A cement slurry is passed into a subterranean formation, and a swelling agent is passed into the subterranean formation to reduce an amount of water flowing into the cement slurry. The swelling agent may be combined with a carrier fluid before being displaced into the subterranean formation. Alternatively, the swelling agent may be pre-mixed with the cement slurry to form a new cement composition, followed by displacing the cement composition into the subterranean formation. The swelling agent is present in an amount effective to, upon absorption of water and swelling to form a gel mass, substantially block the flow path of the water into the cement composition or reduce losses to low pore pressure intervals, thereby preventing the integrity of the cement composition from being compromised or lost to voidage, fractures, fissures, etc.