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US 11,299,668 B2Granted
Methods and compositions for acidizing and stabilizing formation of fracture faces in the same treatment
AssigneeHalliburton Energy Services, Inc.
InventorsPhilip D. Nguyen, Loan K. Vo
Life of this patent
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Abstract
An acidizing and formation stabilizing treatment fluid for stabilizing a fracture in a subterranean formation. An acid generating agent generates an acid in situ to acidize the formation thereby enhancing the fractures within and to cure an acid-catalyzed, curable resin to stabilize the formation.
Claims20
A method comprising:
- introducing an acidizing and formation stabilizing treatment fluid into a subterranean formation, the acidizing and formation stabilizing treatment fluid comprising a base fluid, an in situ acid generating agent, and an acid-catalyzed, curable resin;
- wherein the acid-catalyzed, curable resin is encapsulated with a degradable capsule;
- wherein the in situ acid generating agent generates a first portion of acid in the subterranean formation, the first portion of acid creating or enhancing one or more microfissures therein;
- wherein the capsule undergoes a degradation after a predetermined amount of time, generating an unencapsulated acid-catalyzed, curable resin;
- and
- wherein the in situ acid generating agent generates a second portion of acid in the subterranean formation, and the second portion of acid catalyzes a reaction whereby the unencapsulated acid-catalyzed, curable resin is cured.
3 more elements
Dependencies are inferred from the claim text.