Method of controlling fluid loss from thixotropic cement

Details Method of controlling fluid loss from thixotropic cement Method of controlling fluid loss from thixotropic cement

C - Chemistry, Metallurgy

09

K

31/26

C09K 8/46 (2006.01) C04B 28/26 (2006.01)

Patent

CA 1091438

ABSTRACT OF THE DISCLOSURE In cementing a well with a thixotropic cement, such as with the portland cement/CaSO4.?H2O/water slurry described in U.S. 3,563,313, an effective means for con- trolling fluid loss from the slurry is to precede the slurry with a fluid comprising water, a water soluble alkali metal compound capable of releasing a multivalent metal cation to react with the soluble silicate to form a pumpable gel, and a water dispersible cellulose com- pound and an inert particulate which together impart fluid loss control to the fluid. Optionally, the fluid may contain one or more of: a chelating agent for poly- valent metal cations; a weighting material; a material to minimize lost circulation, and a salt to stabilize fresh water sensitive sandstones and shales, e.g., those having a high clay content.

304562

Affiliated with

Also associated with

Rating

Method of controlling fluid loss from thixotropic cement does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of controlling fluid loss from thixotropic cement, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of controlling fluid loss from thixotropic cement will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-340149