Sand consolidation with a curable resin and filtercake removal fluid
OwnerJay Deville, Philip Nguyen +2inventors
InventorsJay Deville, Philip Nguyen, Weibin Zha, Michael Sanders
Life of this patent
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Abstract
Sand consolidation for a subterranean formation can be achieved by adding a curable resin to a drilling fluid. The curable resin can be a furan- or epoxy- or silane-based resin. The drilling fluid can form a filtercake on a wellbore wall. A filtercake-removal fluid can provide a dual function to remove the filtercake and cure the curable resin, which consolidates formation particles. A curing agent can also be included in the filtercake-removal fluid. Sand consolidation can also be achieved by adding the curable resin to the filtercake-removal fluid. The resin can penetrate into the formation as the filtercake is being removed and then cure.
Claims20
A method of treating a subterranean formation comprising:
- forming a wellbore that penetrates the subterranean formation with a first fluid and drilling equipment, wherein the first fluid is a drilling fluid, and wherein the drilling fluid comprises a curable resin;
- and then
- introducing a second fluid into the wellbore, wherein the second fluid is a filtercake-removal fluid, and wherein the filtercake-removal fluid removes a filtercake formed from the drilling fluid and cures the curable resin.
Dependencies are inferred from the claim text.