Porous particulate materials and compositions thereof

• US 7,713,918 B2
• Filed: 04/14/2004
• Issued: 05/11/2010
• Est. Priority Date: 09/03/2002
• Status: Active Grant

• Current Assignee: Baker Hughes Holdings LLC (Baker Hughes Company)
• Original Assignee: BJ Services Company
• Inventors: Gupta, D. V. Satyanarayana, Brannon, Harold Dean, Rickards, Allan Ray, Stephenson, Christopher John
• Primary Examiner(s): Feely; Michael J
• Application Number:
  US10/824,217
• Publication Number:
  US 20040200617A1
• Time in Patent Office: 2,218 Days
• Field of Search: 507/219, 507/269, 428/402, 428/403, 428/404, 428/405, 428/406, 428/407
• US Class Current: 507/269
• CPC Class Codes: C09K 8/805 Coated proppants
• CPC Class Codes: E21B 43/267 reinforcing fractures by propping
• CPC Class Codes: Y10T 428/2982 Particulate matter [e.g., sphere, flake, etc.]
• CPC Class Codes: Y10T 428/2991 Coated
• CPC Class Codes: Y10T 428/2993 Silicic or refractory material containing [e.g., tungsten oxide, glass, cement, etc.]
• CPC Class Codes: Y10T 428/2995 Silane, siloxane or silicone coating
• CPC Class Codes: Y10T 428/2996 Glass particles or spheres
• CPC Class Codes: Y10T 428/2998 including synthetic resin or polymer

Abstract

Methods and compositions useful for subterranean formation treatments, such as hydraulic fracturing treatments and sand control that include porous materials. Such porous materials may be selectively configured porous material particles manufactured and/or treated with selected glazing materials, coating materials and/or penetrating materials to have desired strength and/or apparent density to fit particular downhole conditions for well treating such as hydraulic fracturing treatments and sand control treatments. Porous materials may also be employed in selected combinations to optimize fracture or sand control performance, and/or may be employed as relatively lightweight materials in liquid carbon dioxide-based well treatment systems.

Claims

1. A selectively configured porous particulate material comprising a porous particulate material treated with a treatment material selected from the group consisting of liquid resin, plastic, cement, sealant and binder, wherein:

(i) the porous particulate material, prior to treatment, has inherent or induced fluid permeability;

(ii) the porous particulate material is selected from the group consisting of porous ceramics, polyolefins, styrene-divinylbenzene copolymers and polyalkylacrylate esters;

(iii) the apparent specific gravity of the selectively configured porous particulate material is less than the apparent specific gravity of the porous particulate material, prior to treatment; and

(iv) the porous particulate material is not a cluster of particulates.

2. The selectively configured porous particulate material of claim 1, wherein the porous particulate material is a natural or non-natural porous ceramic.

3. The selectively configured porous particulate material of claim 1, wherein the selectively configured porous particulate material exhibits crush resistance under conditions as high as 10,000 psi closure stress.

4. The selectively configured porous particulate material of claim 1, wherein the porous particulate material, prior to treatment, has a porosity and fluid permeability such that a fluid may be drawn at least partially into its matrix by capillary action.

5. The selectively configured porous particulate material of claim 1, wherein the porous particulate material, prior to treatment, has a porosity and fluid permeability such that a penetrating material may be (i) drawn at least partially into its matrix using a vacuum;

(ii) forced at least partially into its porous matrix under pressure;

or (iii) a combination of (i) and (ii).

6. The selectively configured porous particulate material of claim 1, wherein the treatment material is selected from phenol, phenol formaldehyde, melamine formaldehyde, urethane or epoxy resin.

7. The selectively configured porous particulate material of claim 1, having a size between from about 200 mesh to about 8 mesh.

8. The selectively configured porous particulate material of claim 1, wherein the fluid permeability of the selectively configured porous particulate material is less than the fluid permeability of the porous particulate material, prior to treatment.

9. The selectively configured porous particulate material of claim 1, wherein the porous particulate material, prior to treatment, has a maximum length-based aspect ratio equal to or less than about 5.

10. A composition comprising the selectively configured porous particulate material of claim 1 and a carrier fluid.

11. The composition of claim 10, wherein the porous particulate material, prior to treatment, is (i) relatively lightweight, (ii) substantially neutrally buoyant or a combination of (i) and (ii).

12. The composition of claim 10, wherein the carrier fluid is non-gelled.

13. The composition of claim 10, wherein the carrier fluid is a completion or workover brine.

14. The composition of claim 10, wherein the carrier fluid is salt water, fresh water, a liquid hydrocarbon, or a gas or a mixture thereof.

15. The composition of claim 14, wherein the gas is nitrogen or carbon dioxide.

16. The composition of claim 10, further comprising at least one member selected from the group consisting of gelling agents, crosslinking agents, gel breakers, surfactants, foaming agents, demulsifiers, buffers, clay stabilizers, acids and mixtures thereof.

17. A selectively configured porous particulate material comprising a porous particulate material coated or penetrated with a treatment material selected from the group consisting of liquid resin, plastic, cement, sealant and binder, wherein:

(i) the porous particulate material, prior to coating or penetration, has inherent or induced fluid permeability;

(ii) the porous particulate material is selected from the group consisting of porous ceramics, polyolefins, styrene-divinylbenzene copolymers and polyalkylacrylate esters;

(iii) the strength of the selectively configured porous particulate material is greater than the strength of the porous particulate material, prior to coating or penetration; and

(iv) the porous particulate material is not a cluster of particulates.

18. The selectively configured porous particulate material of claim 17, wherein the porous particulate material, prior to coating or penetration, has a porosity and fluid permeability such that a fluid may be drawn at least partially into its matrix by capillary action.

19. The selectively configured porous particulate material of claim 17, wherein the porous particulate material, prior to coating or penetration, is (i) relatively lightweight, (ii) substantially neutrally buoyant or a combination of (i) and (ii).

20. The selectively configured porous particulate material of claim 17, wherein the porous particulate material is a natural or non-natural porous ceramic.

21. The selectively configured porous particulate material of claim 17, having a size between from about 200 mesh to about 8 mesh.

22. The selectively configured porous particulate material of claim 17, wherein the treatment material is a penetrating coating, a glassy glazing material or a combination thereof which is capable of trapping or encapsulating a fluid having an apparent specific gravity less than the apparent specific gravity of the matrix of the porous particulate material.

23. The selectively configured porous particulate material of claim 22, wherein the fluid capable of being trapped or encapsulated is a gas.

24. The selectively configured porous particulate material of claim 22, wherein a clay stabilizer is applied, prior to coating or penetration, to the exterior surface of the porous particulate material to inhibit penetration of the treatment material.

25. A composition comprising the selectively configured porous particulate material of claim 17 and a carrier fluid.

26. The composition of claim 25, wherein the carrier fluid is non-gelled.

27. The composition of claim 25, wherein the carrier fluid is salt water, fresh water, a liquid hydrocarbon, or a gas or a mixture thereof.

28. The composition of claim 27, wherein the gas is nitrogen or carbon dioxide.

29. A selectively configured porous particulate material comprising a porous particulate material treated or modified with a glassy glazing material, wherein the porous particulate material, prior to treatment or modification, has inherent or induced fluid permeability.

30. The selectively configured porous particulate material of claim 29, wherein the apparent density or apparent specific gravity of the selectively configured porous particulate material is less than the apparent density or apparent specific gravity of the porous particulate material, prior to treatment or modification.

31. The selectively configured porous particulate material of claim 29, wherein the glazed surface enhances the ease of multi-phase fluid flow through a particulate pack.

32. The selectively configured porous particulate material of claim 29, wherein the porous particulate material is a natural or non-natural porous ceramic.

33. A composition comprising the selectively configured porous particulate material of claim 29 and a carrier fluid.

34. The composition of claim 33, wherein the carrier fluid is non-gelled.

35. The composition of claim 33, wherein the porous particulate material particulate material, prior to treatment or modification, is (i) relatively lightweight, (ii) substantially neutrally buoyant or a combination of (i) and (ii).

36. The composition of claim 33, wherein the carrier fluid is a completion or workover brine.

37. The composition of claim 33, wherein the carrier fluid is liquefied or foamed.

38. A selectively configured porous particulate material comprising a porous particulate material coated with a coating layer of thickness from about 1 to about 5 microns, wherein:

(i) the porous particulate material, prior to coating, has inherent or induced fluid permeability;

(ii) the porous particulate material is selected from the group consisting of porous ceramics, polyolefins, styrene-divinylbenzene copolymers and polyalkylacrylate esters;

(iii) the apparent specific gravity of the selectively configured porous particulate material is less than the apparent specific gravity of the porous particulate material, prior to coating; and

(iv) the porous particulate material is not a cluster of particulates.

39. The selectively configured porous particulate material of claim 38, wherein the porous particulate material is a natural or non-natural porous ceramic.

40. The selectively configured porous particulate material of claim 38, wherein the porous particulate material, prior to coating has a porosity and fluid permeability such that a fluid may be drawn at least partially into its matrix by capillary action.

41. The selectively configured porous particulate material of claim 38, wherein the fluid permeability of the selectively configured porous particulate material is less than the fluid permeability of the porous particulate material.

42. The selectively configured porous particulate material of claim 38, wherein the porous particulate material, prior to coating, has a maximum length-based aspect ratio of equal to or less than about 5.

43. A composition comprising the selectively configured porous particulate material of claim 38 and a carrier fluid.

44. The composition of claim 43, wherein the porous particulate material, prior to coating, is (i) relatively lightweight, (ii) substantially neutrally buoyant or a combination of (i) and (ii).

45. The composition of claim 43, wherein the carrier fluid is salt water, fresh water, a liquid hydrocarbon, or a gas or a mixture thereof.

46. A selectively configured porous particulate material comprising a porous particulate material treated or modified with a glazing material, the glazing material having been fired onto the porous particulate material, wherein the porous particulate material, prior to treatment or modification, has inherent or induced fluid permeability.

47. The selectively configured porous particulate material of claim 46, wherein the glazing material is selected from the group consisting of magnesium oxide-based materials, boric acid, boric oxide-based materials and powdered glass with oxides.

48. The selectively configured porous particulate material of claim 46, wherein the glazed surface enhances the ease of multi-phase fluid flow through a particulate pack.

49. The selectively configured porous particulate material of claim 46, wherein the glazed surface of the porous particulate material enhances the ease of high rate turbulent gas flow through a particulate pack.

50. A composition comprising the selectively configured porous particulate material of claim 46 and a carrier fluid.

51. The composition of claim 50, wherein the porous particulate material, prior to treatment or modification, is (i) relatively lightweight, (ii) substantially neutrally buoyant or a combination of (i) and (ii).

52. The composition of claim 50, wherein the carrier fluid is non-gelled.

53. The composition of claim 50, wherein the carrier fluid is a completion or workover brine.

54. The composition of claim 50, wherein the carrier fluid is salt water, fresh water, a liquid hydrocarbon, or a gas or a mixture thereof.

55. A selectively configured porous particulate material prepared by coating onto a porous particulate material a smooth, glassy glazing material and firing the glazing material onto the porous particulate material, wherein the porous particulate material, prior to coating, has inherent or induced fluid permeability.

56. The selectively configured porous particulate material of claim 55, wherein the porous particulate material is a natural or non-natural porous ceramic.