Process for the consolidation of sand

Details Process for the consolidation of sand Process for the consolidation of sand

E - Fixed Constructions

21

B

E21B 33/138 (2006.01) E21B 33/10 (2006.01) E21B 43/00 (2006.01) E21B 43/02 (2006.01) E21B 43/22 (2006.01)

Patent

CA 2214459

Process for the consolidation of sand in a well which produces fluids, particularly oil and/or gas, comprising the following steps: 1) optional preflush with an aqueous solution of inorganic salts, preferably KCl; 2) injection into the formation of a consolidating agent essentially consisting of an aqueous solution of sodium silicate in water; 3) flushing with an inert gas, preferably nitrogen, of the formation treated in step (2) until the excess consolidating agent and water injected in step (2) have been removed; 4) subsequent introduction into the formation thus treated of an aqueous solution of an acid having a pKa at 25°C of between 3 and 10, preferably selected from ammonium chloride and acetic acid.

Affiliated with

Also associated with

Rating

Process for the consolidation of sand does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for the consolidation of sand, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the consolidation of sand will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1652288