Sand control agent and process

Details Sand control agent and process Sand control agent and process

E - Fixed Constructions

21

B

E21B 43/22 (2006.01) E21B 43/02 (2006.01) E21B 43/04 (2006.01)

Patent

CA 2056885

F-6020-L(PAC) ABSTRACT OF THE INVENTION A method for forming a gravel pack in a washed-cut interval is provided where a borehole penetrates an unconsolidated or loosely consolidated oil or gas reservoir which is likely to introduce substantial amounts of sand into the borehole. After perforating the borehole's casing at a washed-out interval of the formation, sand is introduced into the interval. Afterwards, an aqueous solution of potassium silicate is injected into said interval. Thereafter, an alcoholic solution of hydrated calcium chloride is injected into the interval. A permeability retaining calcium silicate cement is formed in the interval thereby making a gravel pack. Injection of the potassium silicate and hydrated calcium chloride solutions is continued until the porosity of the interval has been reduced by the calcium silicate cement to an extent sufficient to exclude formation fines and sand.

Affiliated with

Also associated with

Rating

Sand control agent and process does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Sand control agent and process, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sand control agent and process will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1699643