High strength, flowable, selectively degradable composite material and articles made thereby
US-2016177661-A1 · Jun 23, 2016 · US
US10781671B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10781671-B2 |
| Application number | US-201816131600-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 14, 2018 |
| Priority date | Sep 14, 2018 |
| Publication date | Sep 22, 2020 |
| Grant date | Sep 22, 2020 |
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A method of controlling fines migration in a wellbore penetrating a subterranean formation, the method comprising: introducing into the wellbore a screen mesh in an unexpanded form disposed of a first tubular member having a body with apertures, the screen mesh comprising a degradable material; expanding the screen mesh; injecting a cement slurry into the wellbore to fill open spaces within the expanded screen mesh; allowing the cement slurry to set forming a set cement that reduces or substantially preventing the passage of formation particles from migrating from the subterranean formation into the wellbore; and removing the degradable material of the screen mesh forming a fluid pathway in the set cement, which allows a formation fluid to flow from the subterranean formation into the wellbore.
Opening claim text (preview).
What is claimed is: 1. A method of controlling fines migration in a wellbore penetrating a subterranean formation, the method comprising: introducing into the wellbore a screen mesh in an unexpanded form disposed of a first tubular member having a body with apertures, the screen mesh comprising a degradable material; expanding the screen mesh; injecting a cement slurry into the wellbore to fill open spaces within the expanded screen mesh; allowing the cement slurry to set forming a set cement that reduces or substantially preventing the passage of formation particles from migrating from the subterranean formation into the wellbore; and removing the degradable material of the screen mesh forming a fluid pathway in the set cement, which allows a formation fluid to flow from the subterranean formation into the wellbore, wherein the cement slurry comprises a chemical that corrodes the degradable material. 2. The method of claim 1 , further comprising injecting a fluid into the wellbore to corrode the degradable material in the screen mesh. 3. The method of claim 2 , wherein the fluid is injected after the cement slurry is set. 4. The method of claim 2 , wherein the fluid is injected before the cement slurry is set. 5. The method of claim 1 , wherein the degradable material comprises a polymeric material, a metallic material, dissolvable glass, or a combination comprising at least one of the foregoing. 6. The method of claim 1 , wherein the degradable material comprises Zn, Mg, Al, Mn, an alloy thereof, a composite thereof, or a combination comprising at least one of the foregoing. 7. The method of claim 1 , wherein the degradable material is a polymeric material comprising a poly(lactic acid), a polyethylene glycol, a polypropylene glycol, a polyglycolic acid, a polycaprolactone, a polylactide-co-glycolide, a polydioxanone, a polyhydroxyalkanoate, a polyhydroxybutyrate, a polyurethane such as polyurethane having ester or ether linkages, a polyvinyl acetate, a polyester, copolymer thereof, or a combination comprising at least one of the foregoing. 8. A method of controlling fines migration in a wellbore penetrating a subterranean formation, the method comprising: introducing into the wellbore a screen mesh in an unexpanded form disposed of a first tubular member having a body with apertures, the screen mesh comprising a degradable material; expanding the screen mesh; injecting a cement slurry into the wellbore to fill open spaces within the expanded screen mesh; allowing the cement slurry to set forming a set cement that reduces or substantially preventing the passage of formation particles from migrating from the subterranean formation into the wellbore; and removing the degradable material of the screen mesh forming a fluid pathway in the set cement, which allows a formation fluid to flow from the subterranean formation into the wellbore, wherein the first tubular member is coupled to a second tubular member in such a way that allows for a relative longitudinal motion between the first tubular member and the second tubular member. 9. The method of claim 8 , wherein expanding the screen mesh comprises activating a deployment mechanism comprising a controller mounted on the first tubular member and at least an arm secured to the second tubular member via a pivoting point, the arm having a plurality of ribs connected to the screen mesh. 10. The method of claim 9 , wherein activating the deployment mechanism comprises allowing the first tubular member to move longitudinally relative to the second tubular member; engaging the controller with the arm to cause the arm to pivot and extend outwardly from the second tubular member; and expanding the screen mesh with the plurality of the ribs on the arm when the arm is extended. 11. The method of claim 8 , wherein the cement slurry comprises a chemical that corrodes the degradable material. 12. A method of controlling fines migration in a wellbore penetrating a subterranean formation, the method comprising: introducing into the wellbore a screen mesh in an unexpanded form disposed of a first tubular member having a body with apertures, the screen mesh comprising a degradable material; expanding the screen mesh; injecting a cement slurry into the wellbore to fill open spaces within the expanded screen mesh; allowing the cement slurry to set forming a set cement that reduces or substantially preventing the passage of formation particles from migrating from the subterranean formation into the wellbore; and removing the degradable material of the screen mesh forming a fluid pathway in the set cement, which allows a formation fluid to flow from the subterranean formation into the wellbore, wherein the screen mesh comprises metal wires coated with the degradable material. 13. A method of controlling fines migration in a wellbore penetrating a subterranean formation, the method comprising: introducing into the wellbore a screen mesh in an unexpanded form disposed of a first tubular member having a body with apertures, the screen mesh comprising a degradable material; expanding the screen mesh; injecting a cement slurry into the wellbore to fill open spaces within the expanded screen mesh; allowing the cement slurry to set forming a set cement that reduces or substantially preventing the passage of formation particles from migrating from the subterranean formation into the wellbore; and removing the degradable material of the screen mesh forming a fluid pathway in the set cement, which allows a formation fluid to flow from the subterranean formation into the wellbore, wherein the screen mesh comprises wires that are formed of the degradable material. 14. An assembly for controlling fines migration in a wellbore penetrating a subterranean formation, the system comprising: a first tubular member having a body with apertures; a screen mesh disposed of the first tubular member, the screen mesh comprising a degradable material; a second tubular member coupled to the first tubular member in such a way that allows for a relative longitudinal motion between the first tubular member and the second tubular member; and a deployment mechanism configured to expand the screen mesh once the screen mesh is placed in the wellbore next to a zone of interest, wherein the deployment mechanism comprises: a controller mounted on the first tubular member; and at least an arm secured to the second tubular member via a pivoting point, the arm having a plurality of ribs connected to the screen mesh. 15. The assembly of claim 14 , wherein the controller has a tapered surface configured to engage the arm to cause the arm to pivot and extend outwardly from the second tubular member during deployment. 16. The assembly of claim 14 , wherein the screen mesh comprises metal wires coated with a degradable material. 17. The assembly of claim 14 , wherein the degradable material comprises a polymeric material, a metallic material, dissolvable glass, or a combination comprising at least one of the foregoing. 18. An assembly for controlling fines migration in a wellbore penetrating a subterranean formation, the system comprising: a first tubular member having a body with apertures; a screen mesh disposed of the first tubular member, the screen mesh comprising a degradable material; a second tubular member coupled to the first tubular member in such a way that allows for a relative longitudinal motion between the first tubular member and the second tubular member; and a deployment mechanism configured to expand the screen mesh
containing inorganic compounds · CPC title
Self-degrading materials, e.g. materials undergoing a hydrolytic degradation in the course of time · CPC title
characterised by their form or by the form of their components, e.g. encapsulated material · CPC title
Compositions based on water or polar solvents (C09K8/502 takes precedence) · CPC title
Macromolecular compounds (C09K8/5756 takes precedence) · CPC title
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