E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 33/13 (2006.01) C04B 28/26 (2006.01) C09K 8/50 (2006.01) C09K 8/512 (2006.01) C09K 8/518 (2006.01)
Patent
CA 2254381
The present invention provides methods and compositions for sealing subterranean zones. The methods of the invention basically comprise the steps of preparing a sealing composition comprised of an aqueous alkali metal silicate solution, a gelling agent and a delayed acid activator for causing the composition to set into a rigid mass, placing the sealing composition in said subterranean zone and allowing the sealing composition to set into a rigid sealing mass therein.
Chatterji Jiten
Cromwell Roger S.
King Bobby J.
Norman Lewis R.
Onan David D.
Halliburton Energy Services Inc.
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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