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US 10,472,561 B2Granted
Controlling proppant flowback using resin chemistry for acid fracturing
AssigneeHalliburton Energy Services, Inc.
InventorsJoao Walter Pereira Suzart, Prasad Baburao Karadkar, Anupom Sabhapondit, Bilal Zoghbi
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Abstract
A method for wellbore stimulation of a subterranean formation that includes preparing an emulsified acid, preparing a resin coated proppant, combining the emulsified acid and the resin coated proppant, mixing to form an acid fracturing slurry and performing a fracturing stimulation of a subterranean formation with the acid fracturing slurry containing the resin coated proppant.
Claims17
A method for wellbore stimulation of a subterranean formation, comprising:
- preparing an emulsified acid;
- preparing a resin coated proppant, the resin coated proppant comprising an epoxy resin coated on a proppant;
- combining the emulsified acid, the resin coated proppant, and a viscosifier, and mixing to form an acid fracturing slurry;
- performing a fracturing stimulation of the subterranean formation with the acid fracturing slurry containing the resin coated proppant;
- reacting the emulsified acid with the subterranean formation, increasing a pH of the acid fracturing slurry, and breaking the emulsified acid to produce a fluid with a lower viscosity than the emulsified acid;
- and
- flowing back the fluid with the lower viscosity than the emulsified acid.
4 more elements
A system used for wellbore stimulation of a subterranean formation, comprising:
- an emulsified acid;
- a resin coated proppant;
- a mixture of the emulsified acid and the resin coated proppant to form an acid fracturing slurry;
- wherein the acid fracturing slurry is used for fracturing stimulation of a subterranean formation in which the emulsified acid is reacted with the subterranean formation which increases a pH of the mixture of the emulsified acid to cause the mixture of emulsified acid to break to produce a fluid with a lower viscosity than the mixture of emulsified acid.
1 more element
Dependencies are inferred from the claim text.