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US 10,294,406 B2Granted
Sealant composition for use in subterranean formations
AssigneeHalliburton Energy Services, Inc.
InventorsLalit Pandurang Salgaonkar, Mallikarjuna Shroff Rama, Rahul Chandrakant Patil
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Abstract
Sealant compositions that may be used for creating fluid flow preventing barriers in a subterranean formation. A method may comprise reacting components comprising an oxazoline functionalized polymer and a crosslinking agent in a subterranean formation to create a barrier in the subterranean formation.
Claims20
A method comprising:
- introducing an oxazoline functionalized polymer into a subterranean formation, wherein the oxazoline functionalized polymer comprises oxazoline groups;
- introducing a crosslinking agent into the subterranean formation, wherein the crosslinking agent comprises reactive groups that are reactive with the oxazoline groups;
- reacting the oxazoline functionalized polymer and the crosslinking agent in the subterranean formation to crosslink the oxazoline groups and create a barrier in the subterranean formation.
A well system comprising:
- a sealant composition comprising an aqueous-base fluid, an oxazoline functionalized polymer, and a crosslinking agent, wherein the oxazoline functionalized polymer comprises oxazoline groups, wherein the crosslinking agent comprises reactive groups that are reactive with the oxazoline groups;
- a fluid handling system comprising the sealant composition;
- and
- a conduit in fluidically coupled to the fluid handling system and a wellbore.
1 more element
A method comprising:
- introducing an oxazoline functionalized polymer into a subterranean formation, wherein the oxazoline functionalized polymer has the following structure:
- wherein m is an integer from 2 to 1,000,000, n is an integer from 0 to 1,000,000, M is an organic pendant group, and R1, R2, R3, and R4 independently denote a hydrogen atom, halogen atom, an alkyl group, an aralkyl group, a phenyl group, or a substitute phenyl group;
- introducing a crosslinking agent into the subterranean formation;
- reacting the oxazoline functionalized polymer and the crosslinking agent in the subterranean formation to crosslink the oxazoline functionalized polymer and create a barrier in the subterranean formation.
1 more element
Dependencies are inferred from the claim text.