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US 2014/0151042 A1Published application
Chelate Compositions And Methods And Fluids For Use In Oilfield Operations
AssigneeM-I L.L.C.
InventorsLee Faugerstrom, Robert L. Horton, Mark Luyster, Chris Shepherd, Bethicia B. Prasek, James Lepage
Life of this patent
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Abstract
A breaker fluid may include a base fluid; and an inactive chelating agent. A process may include pumping a first wellbore fluid comprising an inactive chelating agent into a wellbore through a subterranean formation; and activating the inactive chelating agent to release an active chelating agent into the wellbore.
Claims29
A breaker fluid comprising:
- a base fluid;
- and
- an inactive chelating agent.
A process comprising:
- pumping a first wellbore fluid comprising an inactive chelating agent into a wellbore through a subterranean formation;
- and
- activating the inactive chelating agent to release an active chelating agent into the wellbore.
A process comprising:
- pumping a first wellbore fluid comprising a polysaccharide polymer, a bridging agent, and an inactive chelating agent into a wellbore through a subterranean formation;
- allowing some filtration of the first wellbore fluid into the subterranean formation to produce a filter cake comprising the polysaccharide polymer, bridging agent, and inactive chelating agent;
- and
- activating the inactive chelating agent to release an active chelating agent wherein the released active chelating agent reacts with the bridging agent in the wellbore.
1 more element
Dependencies are inferred from the claim text.