Methods of controlling fines migration in a well

Patent metadata

Field	Value
Publication number	US-2020002601-A1
Application number	US-201816021142-A
Country	US
Kind code	A1
Filing date	Jun 28, 2018
Priority date	Jun 28, 2018
Publication date	Jan 2, 2020
Grant date	—

Abstract

A method of treating a subterranean formation penetrated by a wellbore comprises: introducing into the subterranean formation a treatment fluid comprising coated polymeric particles having a polymeric core and a curable thermoset coating disposed on the polymeric core; allowing the curable thermoset coating to cure under downhole conditions; and forming a fluid-permeable pack from the coated polymeric particles, the fluid-permeable pack reducing or substantially preventing the passage of formation particles from the subterranean formation into the wellbore while allowing passage of formation fluids from the subterranean formation into the wellbore.

First claim

What is claimed is:

1 . A method of treating a subterranean formation penetrated by a wellbore, the method comprising:
introducing into the subterranean formation a treatment fluid comprising coated polymeric particles having a polymeric core and a curable thermoset coating disposed on the polymeric core, the polymeric core comprising a rubber, an epoxy, a phenolic resin, a thermoplastic polymer or a combination comprising at least one of the foregoing, the rubber comprising a nitrile rubber (NBR), a hydrogenated nitrile rubber (HNBR), a styrene-butadiene rubber (SBR), an ethylene propylene diene monomer rubber (EPDM), a natural rubber, a silicone rubber, a polybutadiene, polyisoprene, butyl rubber, or a combination comprising at least one of the foregoing, and the thermoplastic polymer comprising polyetheretherketone (PEEK), a polyimide, a polysulfone, a polyester or polycarbonate; allowing the curable thermoset coating to cure under downhole conditions; and forming a fluid-permeable pack from the coated polymeric particles, the fluid-permeable pack reducing or substantially preventing the passage of formation particles from the subterranean formation into the wellbore while allowing passage of formation fluids from the subterranean formation into the wellbore.

2 . The method of claim 1 , wherein the polymeric core is a recycled polymeric material.

3 . The method of claim 1 , wherein the polymeric core is a recycled rubber in a particulate form.

4 . The method of claim 3 , wherein the recycled rubber has a size of about 3.5 to about 40 mesh.

5 . The method of claim 1 , wherein the curable thermoset coating comprises an uncured or partially cured thermoset including an epoxy resin, a phenolic resin, a vinyl ester resin, a furan resin, a polyurethane, a polyester, a cyanate ester, a polyimide, a bismaleimide, a liquid rubber or a combination comprising at least one of the foregoing.

6 . The method of claim 5 , wherein the curable thermoset coating further comprises a curing agent.

7 . The method of claim 6 , wherein the curing agent comprises an amine, an oxygen-containing compound, elemental sulfur, a sulfur-containing compound, a peroxide, a Lewis acid, a Lewis base; or a combination comprising at least one of the foregoing.

8 . The method of claim 1 , wherein the coated polymeric particles have an average particle size of about 1,000 μm to about 7,000 μm.

9 . The method of claim 1 , wherein the treatment fluid further comprises a proppant.

10 . The method of claim 9 , wherein the proppant comprises an uncoated proppant, a coated proppant, or a combination thereof.

11 . The method of claim 9 , wherein the weight ratio of the coated polymeric particles relative to the proppant is about 10:90 to about 90:10.

12 . The method of claim 1 , wherein the forming the fluid-permeable pack comprises consolidating the coated polymeric particles with the coating during curing.

13 . The method of claim 1 , further comprising performing a downhole operation comprising one or more of the following: a hydraulic fracturing operation; an acidizing treatment; a gravel packing operation; or a flooding operation.

14 . The method of claim 13 , wherein introducing the treatment fluid and the performing the downhole operation occur simultaneously.

15 . The method of claim 13 , wherein performing the downhole operation precedes introducing the treatment fluid.

16 . The method of claim 1 , further comprising adjusting the permeability of the fluid-permeable pack by changing the size of the coated polymeric particles, the thickness of the curable thermoset coating, a composition of the curable thermoset coating, or a combination thereof.

17 . The method of claim 1 , wherein the fluid-permeable pack is disposed adjacent the subterranean formation.

18 . The method of claim 1 , wherein the fluid-permeable pack is disposed in a fracture created by a hydraulic fracturing operation.

19 . The method of claim 1 , further comprising installing a screen device in the wellbore.

20 . The method of claim 19 , wherein the fluid-permeable pack is disposed in an annular area between the exterior of the screen device and the interior of the wellbore.

21 . A coated polymeric particle comprising:
a recycled polymeric core in a particulate form, and a curable coating disposed on the polymeric core, wherein recycled polymeric core has a size of about 3.5 to 40 mesh and comprises nitrile rubber (NBR), hydrogenated nitrile rubber (HNBR), styrene-butadiene rubber (SBR), ethylene propylene diene monomer rubber (EPDM), natural rubber, silicone rubber, polybutadiene, polyisoprene, butyl rubber, rubber blend, polyetheretherketone (PEEK), polyamide, polyimide, polysulfone, polyester, polycarbonate, or a combination comprising at least one of the foregoing.

Assignees

• Kovalchuk Anton
• Garza Ramon
• Baker Hughes A Ge Co Llc

Inventors

• Kovalchuk Anton
• Garza Ramon

Classifications

• C09K8/516 Primary

  characterised by their form or by the form of their components, e.g. encapsulated material · CPC title

• C09K8/74

  combined with additives added for specific purposes · CPC title

• E21B43/267

  reinforcing fractures by propping · CPC title

• C09K8/5751 Primary

  Macromolecular compounds (C09K8/5756 takes precedence) · CPC title

• C09K8/70

  characterised by their form or by the form of their components, e.g. foams · CPC title