Selective permeability reduction in a subterranean...

Details Selective permeability reduction in a subterranean... Selective permeability reduction in a subterranean...

E - Fixed Constructions

21

B

E21B 33/138 (2006.01) C09K 8/512 (2006.01) E21B 43/26 (2006.01)

Patent

CA 2045973

ABSTRACT OF THE DISCLOSURE Selective permeability reduction is achieved in a heterogeneous treatment zone of a subterranean hydrocarbon-bearing formation by initially placing a nonselective permeability-reducing material in the high and low permeability regions of the treatment zone. Thereafter, a permeability- restoring agent is placed in the regions behind the permeability-reducing material. The agent contacts all of the material in the low permeability region,reacting with it to restore permeability thereto. However, the agent is consumed by reaction before it contacts all of the material in the high permeability region, thereby leaving a sufficient amount of material in the high permeability region to achieve selective permeability reduction therein.

Affiliated with

Also associated with

Rating

Selective permeability reduction in a subterranean... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Selective permeability reduction in a subterranean..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Selective permeability reduction in a subterranean... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-2021295