CA2436725A1 - Composite proppant, filtration media, gravel packing media, and sports field media, and methods for making and using same - Google Patents

Composite proppant, filtration media, gravel packing media, and sports field media, and methods for making and using same Download PDF

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Publication number
CA2436725A1
CA2436725A1 CA002436725A CA2436725A CA2436725A1 CA 2436725 A1 CA2436725 A1 CA 2436725A1 CA 002436725 A CA002436725 A CA 002436725A CA 2436725 A CA2436725 A CA 2436725A CA 2436725 A1 CA2436725 A1 CA 2436725A1
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Prior art keywords
binder
composite particle
particles
composite
particle
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Granted
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CA002436725A
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French (fr)
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CA2436725C (en
Inventor
Robert R. Mcdaniel
Johannes A. Geraedts
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Hexion Inc
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Individual
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/60—Compositions for stimulating production by acting on the underground formation
    • C09K8/80—Compositions for reinforcing fractures, e.g. compositions of proppants used to keep the fractures open
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63K—RACING; RIDING SPORTS; EQUIPMENT OR ACCESSORIES THEREFOR
    • A63K1/00—Race-courses; Race-tracks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
    • B01J2/006—Coating of the granules without description of the process or the device by which the granules are obtained
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
    • B01J2/20—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by expressing the material, e.g. through sieves and fragmenting the extruded length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/14—Layered products comprising a layer of synthetic resin next to a particulate layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/16—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer formed of particles, e.g. chips, powder or granules
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K7/00—Use of ingredients characterised by shape
    • C08K7/02—Fibres or whiskers
    • C08K7/04—Fibres or whiskers inorganic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
    • C09K8/60—Compositions for stimulating production by acting on the underground formation
    • C09K8/80—Compositions for reinforcing fractures, e.g. compositions of proppants used to keep the fractures open
    • C09K8/805—Coated proppants
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C13/00—Pavings or foundations specially adapted for playgrounds or sports grounds; Drainage, irrigation or heating of sports grounds
    • E01C13/08—Surfaces simulating grass ; Grass-grown sports grounds
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/25—Methods for stimulating production
    • E21B43/26—Methods for stimulating production by forming crevices or fractures
    • E21B43/267—Methods for stimulating production by forming crevices or fractures reinforcing fractures by propping
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
    • Y10T428/2991—Coated
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
    • Y10T428/2991—Coated
    • Y10T428/2993—Silicic or refractory material containing [e.g., tungsten oxide, glass, cement, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
    • Y10T428/2991—Coated
    • Y10T428/2993—Silicic or refractory material containing [e.g., tungsten oxide, glass, cement, etc.]
    • Y10T428/2996—Glass particles or spheres
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
    • Y10T428/2991—Coated
    • Y10T428/2998—Coated including synthetic resin or polymer

Abstract

Composite particles (10) made of a binder (15) and filler material (20) are provided for use in subterranean for-mations. The filler is typically finely divided mineral and optional fiber. The particles are useful as proppants to prop open subter-ranean formation fractures. The particles are also useful for water filtration and artificial turf for sports fields. Methods of making the composite particles are also disclosed.

Claims (101)

1. A composite particle comprising:
a substantially homogeneous formed particle comprising:
a first portion of a binder, wherein the first portion is at least partly cured;
filler particles dispersed throughout the first portion of binder, wherein particle size of the filler particles ranges from about 0.5 to about 60 µm; and an optional second portion of a binder coating the formed particle;
60-90 volume percent of the composite particle being the filler particles;
wherein the first and second portions of binder have an absence of cement;
wherein at least one member of the group consisting of the first portion of binder or the second portion of binder comprises a cold-set resin.
2. The composite particle of Claim 1, said composite particle having a sphericity of at least about 0.7.
3. The composite particle of Claim 1, wherein the sphericity is at least about 0.9.
4. The composite particle of Claim 1, wherein the filler is at least one member selected from the group consisting of milled glass fibers, milled ceramic fibers, milled carbon fibers, natural fibers and synthetic fibers having a softening point of at least about 200°F.
5. The composite particle of Claim 1, wherein the composite particle bulk density ranges from about 50 to about 95 lbs/ft3.
6. The composite particle of Claim 1, wherein the composite particle has a bulk density of 0.50 to 1.30 grams per cubic centimeter.
7. The composite particle of Claim 1, wherein the composite particle bulk density ranges from about 50 to about 80.5 lbs/ft3.
8. The composite particle of Claim 1, wherein 60 to 85 volume percent of the composite particle is the filler particles.
9. The composite particle of Claim 1, wherein 60 to 80 volume percent of the composite particle is the filler particles.
10. The composite particle of Claim 1, wherein 60 to 75 volume percent of the composite particle is the filler particles.
11. The composite particle of Claim 1, wherein the proportion of filler particles substance is from about 65 to about 85% by volume of composite particle.
12. The composite particle of Claim 1, wherein the proportion of filler particles substance is from about 80 to about 85% by volume of composite particle.
13. The composite particle of Claim 1, wherein the composite particle has a grain density of 0.90 to 2.20 gm/cm3.
14. The composite particle of Claim 1, wherein the composite particle has a grain density of 1.40 to 1.60 gm/cm3.
15. The composite particle of Claim 1, wherein the filler comprises at least one member selected from the group consisting of finely divided minerals, fibers, ground almond shells, ground walnut shells, and ground coconut shells.
16. The composite particle of Claim 1, wherein the filler particles comprise at least one member selected from the group consisting of fly ash, hollow glass microspheres, ground almond shells, ground coconut shells and ground walnut shells.
17. The composite particle of Claim 1, wherein at least one member of the group consisting of the first portion of binder or the second portion of binder comprises at least one member of the group consisting of novolac resin, resole resin, and further comprises cross-linking agents and conventional additives.
18. The composite particle of Claim 1, wherein at least one member of the group consisting of the first portion of binder or the second portion of binder comprises at least one member of the group consisting of epoxy resin, polyurethane resin, alkaline modified phenolic resole curable with ester, melamine resin, urea-aldehyde resin, urea-phenol-aldehyde resin, furans, synthetic rubber, polyester resin, and further comprises cross-linking agents and conventional additives.
19. The composite binder of Claim 1, wherein each portion of binder comprises at least one polymerized monomer or oligomer selected from the group consisting of melamine, urea, formaldehyde, phenol, bisphenol, isocyanate, epoxy resin, epichlorohydrin, and furfuryl alcohol.
20. The composite particle of Claim 1, wherein at least one portion of the binder comprises inorganic binder or alkoxy modified resole resin.
21. The composite particle of Claim 1, wherein at least one said portion of the binder comprises a high ortho resin, hexamethylenetetramine, a silane adhesion promoter, a silicone lubricant, a wetting agent and a surfactant.
22. The composite particle of Claim 1, wherein the composite particles have diameters from 4 to 100 mesh.
23. The composite particle according to Claim 1, wherein the composite particles have diameters between 20 and 40 mesh and comprise a coating of a layer of synthetic resin.
24. The composite particle according to Claim 1, wherein the composite particles have diameters between 30 and 40 mesh and comprise a coating of a layer of synthetic resin.
25. The composite particle according to Claim 1, wherein the composite particles have diameters between 8 and 20 mesh and comprise a coating of a layer of synthetic resin.
26. The composite particle of Claim 1, wherein the filler particles are a finely divided mineral.
27. The composition particle of Claim 1, wherein at least one member of the group consisting of the first portion of binder and the second portion of binder comprises epoxy.
28. The composite particle of Claim 1, wherein at least one member of the group consisting of the first portion of binder and the second portion of binder comprises furan.
29. The composite particle according to Claim 1, wherein at least one member of the group consisting of the first portion of binder and the second portion of binder comprises polyurethane.
30. The composite particle according to Claim 1, wherein at least one member of the group consisting of the first portion of binder and the second portion of binder comprises an alkaline modified resole settable by an ester.
31. The composite particle according to Claim 1, wherein at least one member of the group consisting of the first portion of binder and the second portion of binder comprises a melamine resin.
32. The composite particle according to Claim 1, wherein at least one member of the group consisting of the first portion of binder and the second portion of binder comprises urea-formaldehyde resin or urea-phenol-formaldehyde resin.
33. The composite particle of Claim 1, wherein the first portion of binder comprises cured binder.
34. The composite particle of Claim 1, wherein the first portion of binder comprises a cured binder, and the second portion of binder comprises a curable binder.
35. The composite particle of Claim 1, wherein the tiller particles are at least one member selected from the group consisting of silica, alumina, fumed carbon, carbon black, graphite, mica, titanium dioxide, meta-silicate, calcium silicate, kaolin, talc, zirconia, boron, fly ash, hollow glass microspheres, and solid glass.
36. The composite particle of Claim 1, wherein the first portion of binder comprises a cured binder, and the second portion of binder comprises a curable binder.
37. The composite particle of Claim 1, wherein the filler particles have a grain size, d50, of 4 to 10 µm.
38. The composite particle of Claim 1, wherein the filler particles are about 45 to 80% by weight of the composite particle.
39. The composite particle of Claim 1, wherein the filler particles are about 60 to 75% by weight of the composite particle.
40. The composite particle of Claim 1, wherein the filler particles are about 70 to 80% by weight of the composite particle.
41. The composite particle of Claim 1, wherein the filler particles are of mineral substance and the proportion of mineral substance is about 70 to 90% by weight of composite particle.
42. A composite particle comprising:
a substantially homogeneous formed particle comprising:
a first portion of a binder, wherein the first portion is at least partly cured;

filler particles dispersed throughout the first portion of binder, wherein particle size of the filler particles ranges from about 0.5 to about 60 µm; and an optional second portion of a binder coating the formed particle;
wherein the first and second portions of binder have an absence of cement;
wherein at least one member of the group consisting of the first portion of binder or the second portion of binder comprises a cold-set resin, wherein the composite particle has a bulk density of 0.50 to 1.30 grams per cubic centimeter.
43. A method for producing a composite particle according to Claim 1, comprising mixing the filler particles, the first portion of binder, at least one member of the group consisting of water and an organic solvent, and optional additives to form a mixture and to adjust agglomeration behavior of the filler particles; subjecting the mixture to agglomerative granulation to form cores; and curing the first portion of binder.
44. A method for producing a composite particle according to Claim 42, comprising mixing the filler particles, the first portion of binder, at least one member of the group consisting of water and an organic solvent, and optional additives to form a mixture and to adjust agglomeration behavior of the filler particles; subjecting the mixture to agglomerative granulation to form cores; and curing the first portion of binder.
45. The method according to Claim 43, wherein the curing of the first and second portions of binder is a cold set curing.
46. The method according to Claim 43, further comprising coating the cores with said second portion of binder and curing said coating by a cold set curing.
47. The method according to Claim 43, wherein the filler particles, the first portion of binder, at least one member of the group consisting of water and an organic solvent, and optional additives are mixed to form the mixture and to adjust the plasticity of the mixture; the mixture is granulated in the plastic state to form the formed particles; and the first portion of binder in the formed particles is cured at temperature above 150 °F, and then the second portion of binder is coated onto the formed particles and cured by a cold set curing.
48. The method according to Claim 43, wherein the agglomerative granulating is done by extrusion as strands, cutting the strands into fragments, and shaping the fragments under the influence of centrifugal force into spherical granules.
49. The method according to Claim 48, wherein the formed particles are smoothed and compressed by rolling before crosslinking of the binder.
50. The method according to Claim 48, wherein after the first portion of binder has cured, the formed particles are coated with the second portion of binder and cured again.
51. The method according to Claim 43, wherein after granulation the solvent is dried, after the drying but, before curing the first portion of binder, the formed particles are coated with resin.
52. A method of treating a hydraulically induced fracture in a subterranean formation surrounding a wellbore comprising introducing composite particles of Claim 1 into the fracture.
53. A method of treating a hydraulically induced fracture in a subterranean formation surrounding a wellbore comprising introducing composite particles of Claim 42 into the fracture.
54. The method according to Claim 52, wherein a multi-layer pack comprising the composite particles is formed in the formation.
55. The method according to Claim 52, wherein the first portion of binder comprises a resole resin and the second portion of binder comprises a polyurethane resin or an alkaline modified resole curable with ester.
56. The method of Claim 52, wherein the proppant further comprises introducing particles selected from at least one member of the group consisting of sand, sintered ceramic particles and glass beads.
57. The method of Claim 52, wherein the sand particles comprise resin-coated sand particles.
58. The method of Claim 52, wherein the sphericity of the composite particles is at least about 0.85.
59. The method of Claim 52, wherein the composite particles have diameters between 20 and 40 mesh and comprise a coating of a layer of synthetic resin.
60. The method of Claim 52, wherein the composite particles have diameters between 8 and 20 mesh and comprise a coating of a layer of synthetic resin.
61. The method of Claim 52, wherein the filler particles are a finely divided mineral.
62. The method of Claim 52, wherein the proportion of filler particles substance is from about 65 to about 85 % by volume of composite particle.
63. The method of Claim 52, wherein the filler particles are a mineral having a grain size, d50, of 4 to 10 µm.
64. A method for water filtration comprising passing water through a filtration pack comprising the composite particles of Claim 1.
65. A method for water filtration comprising passing water through a filtration pack comprising the composite particles of Claim 42.
66. A method for forming a gravel pack about a wellbore comprising introducing the composite particles of Claim 1 and gravel into the well bore.
67. A method for forming a gravel pack about a wellbore comprising introducing the composite particles of Claim 42 and gravel into the well bore.
68. A method for preparing an artificial turf sports field comprising providing a porous mat and applying a layer comprising the composite particles of Claim 1 over the mat, wherein the first portion of binder comprises an elastomer.
69. A method for preparing an artificial turf sports field comprising providing a porous mat and applying a layer comprising the composite particles of Claim 42 over the mat, wherein the first portion of binder comprises an elastomer.
70. The method for preparing an artificial turf sports field of Claim 68, wherein the second portion of binder comprises an elastomer.
71. The method of Claim 68, wherein the binder is selected from the group consisting of unsaturated chain polymers or copolymers obtained by polymerization of conjugated dienes and/or aliphatic or aromatic vinyl monomers.
72. The method of Claim 68, wherein the first and second portions of binder are independently selected from the group consisting of natural rubber, 1,4-cis polybutadiene, polychloroprene, 1,4-cis polyisoprene, optionally halogenated isoprene-isobutene copolymers, butadiene-acrylonitrile, styrene-butadiene and styrene-butadiene-isoprene teipolymers, either prepared in solution or in emulsion, ethylene-propylene-diene terpolymers.
73. The method for preparing an artificial turf sports field of Claim 68, wherein the first and second portions of binder are selected from the group consisting of unsaturated chain polymers or copolymers obtained by polymerization of conjugated dienes and/or aliphatic or aromatic vinyl monomers.
74. The method for preparing an artificial turf sports field of Claim 68, wherein a mixture of sand and the composite particles is applied to the mat to form the layer.
75. The method for preparing an artificial turf sports field of Claim 68, wherein only the composite particles are applied to the mat to form the layer.
76. An artificial turf sports field, comprising a porous mat and a layer of the particles of Claim 1 over the mat, wherein the binder comprises an elastomer.
77. An artificial turf sports field, comprising a porous mat and a layer of the particles of Claim 42 over the mat, wherein the binder comprises an elastomer.
78. The artificial turf sports fields of Claim 76, wherein the first and optional second portions of binder comprise an elastomer.
79. The artificial turf sports fields of Claim 76, wherein the first and second portions of binder are selected from the group consisting of unsaturated chain polymers or copolymers obtained by polymerization of conjugated dimes and/or aliphatic or aromatic vinyl monomers.
80. The artificial turf sports fields of Claim 76, wherein the first and second portions of binder are selected from the group consisting of natural rubber, 1,4-cis polybutadiene, polychloroprene, 1,4-cis polyisoprene, optionally halogenated isoprene-isobutene copolymers, butadiene-acrylonitrile, styrene-butadiene and styrene-butadiene-isoprene terpolymers, either prepared in solution or in emulsion, and ethylene-propylene-diene terpolymers.
81. A composite particle comprising:
a substantially homogeneous formed particle comprising:
a first portion of a binder, wherein the first portion is at least partly cured;
filler particles dispersed throughout the first portion of binder, wherein particle size of the filler particles ranges from about 0.5 to about 60 µm; and an optional second portion of a binder coating the formed particle;
60-90 volume percent of the composite particle being the filler particles;
wherein the first and second portions of binder have an absence of cement;
wherein at least one member of the group consisting of the first portion of binder or the second portion of binder comprises at least one member of the group consisting of inorganic binder, epoxy resin, polyurethane resin, alkaline phenolic resole curable with ester, melamine resin, urea-aldehyde resin, urea-phenol-aldehyde resin, furans, synthetic rubber, polyester resin, and further comprises cross-linking agents and conventional additives.
82. A composite particle comprising:
a substantially homogeneous formed particle comprising:
a first portion of a binder, wherein the first portion is at least partly cured;
filler particles dispersed throughout the first portion of binder, wherein particle size of the filler particles ranges from about 0.5 to about 60 µm; and an optional second portion of a binder coating the formed particle;
60-90 volume percent of the composite particle being the filler particles;
wherein the first and second portions of binder have an absence of cement;
wherein each portion of binder comprises at least one polymer made from at least one ingredient selected from the group consisting of melamine, urea, formaldehyde, phenol bisphenol, phenolic resole resin, alkoxy modified resole resin, phenolic novolac resin, isocyanate, epoxy resin, epichlorohydrin, and furfuryl alcohol.
83. A composite particle comprising:
a substantially homogeneous formed particle comprising:
a first portion of a binder, wherein the first portion is at least partly cured;
filler particles dispersed throughout the first portion of binder, wherein particle size of the filler particles ranges from about 0.5 to about 60 µm; and an optional second portion of a binder coating the formed particle;
60-90 volume percent of the composite particle being the filler particles;
wherein the first and second portions of binder have an absence of cement;
wherein each portion of the binder independently comprises at least one member of the group consisting of inorganic binder, epoxy resin, novolac resin, resole resin, polyurethane resin, alkaline phenolic resole curable with ester, melamine resin, urea-aldehyde resin, urea-phenol-aldehyde resin, furans, synthetic rubber, and polyester resin.
84. A composite particle comprising:
a substantially homogeneous formed particle comprising:
a first portion of a cement-containing binder;
filler particles dispersed throughout the first portion of binder, wherein particle size of the filler particles ranges from about 0.5 to about 60 µm; and an optional second portion of a binder coating the formed particle, wherein the second portion of binder comprises a resin.
85. The composite particle of Claim 84, wherein the second portion of binder comprises a cold-set resin.
86. The composite particle according to Claim 84, wherein the first portion of binder comprises a cement/phenolic polymer composition, a cement/polyamide composition or a cement/polyimide composition.
87. The composite particle according to Claim 84, wherein the first portion of binder comprises an MDF cement.
88. The composite particle according to Claim 84, wherein the binder comprises a cement and a polymer.
89. The composite particle according to Claim 84, wherein the binder comprises a cement and a polymer, and the filler particles comprise particles having a grain density of 2.45 to 3.20 gr/cm3 and particles selected from at least one member of the group consisting of glass microspheres, fly ash, ground almond shells, ground coconut shells, and ground walnut shells.
90. A method for producing a composite particle according to Claim 84, comprising mixing the filler particles, the first portion of binder, at least one member of the group consisting of water and an organic solvent, and optional additives to form a mixture and to adjust agglomeration behavior of the filler particles; subjecting the mixture to agglomerative granulation to form cores; and curing the first portion of binder.
91. A method of treating a hydraulically induced fracture in a subterranean formation surrounding a wellbore comprising introducing composite particles of Claim 84 into the fracture.
92. A method for water filtration comprising passing water through a filtration pack comprising the composite particles of Claim 84.
93. A method for forming a gravel pack about a wellbore comprising introducing the composite particles of Claim 84 and gravel into the well bore.
94. A method for preparing an artificial turf sports field comprising providing a porous mat and a layer of composite particles of Claim 84 over the mat, wherein the second portion of binder comprises an elastomer.
95. An artificial turf sports field, comprising a porous mat and a layer of the particles of Claim 84 over the mat, wherein the binder comprises an elastomer.
96. A composite particle comprising:
a substantially homogeneous formed particle comprising:
a core comprising a binder and filler particles dispersed throughout the binder, wherein particle size of the filler particles ranges from about 0.5 to about µm; wherein the composite particle has a bulk density of 0.50 to 1.30 grams per cubic centimeter, and a grain density of 0.90 to about 2.2 gr/cm3;
optionally the particle has a resin coating.
97. A method for producing a composite particle according to Claim 96, comprising mixing the filler particles, the first portion of binder, at least one member of the group consisting of water and an organic solvent, and optional additives to foun a mixture and to adjust agglomeration behavior of the filler particles; subjecting the mixture to agglomerative granulation to form cores; and curing the first portion of binder.
98. A method of treating a hydraulically induced fracture in a subterranean formation surrounding a wellbore comprising introducing composite particles of Claim 96 into the fracture.
99. A method for water filtration comprising passing water through a filtration pack comprising the composite particles of Claim 96.
100. A method for forming a gravel pack about a wellbore comprising introducing the composite particles of Claim 96 and gravel into the well bore.
101. An artificial turf sports field, comprising a porous mat and a layer of the particles of Claim 96 over the mat, wherein the binder comprises an elastomer.
CA002436725A 2001-02-01 2001-05-07 Composite proppant, filtration media, gravel packing media, and sports field media, and methods for making and using same Expired - Lifetime CA2436725C (en)

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US09/774,881 US6582819B2 (en) 1998-07-22 2001-02-01 Low density composite proppant, filtration media, gravel packing media, and sports field media, and methods for making and using same
PCT/US2001/014657 WO2002060681A1 (en) 2001-02-01 2001-05-07 Composite proppant, filtration media, gravel packing media, and sports field media, and methods for making and using same

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BR0116857A (en) 2004-06-22
MXPA03006745A (en) 2003-10-24
CN1492803A (en) 2004-04-28
US20020048676A1 (en) 2002-04-25
ATE465867T1 (en) 2010-05-15
CA2436725C (en) 2009-11-17
US6582819B2 (en) 2003-06-24
EP1368188B1 (en) 2010-04-28
DE60141983D1 (en) 2010-06-10
BRPI0116857B1 (en) 2016-03-01
AR034122A1 (en) 2004-02-04
EP1368188A4 (en) 2005-11-23
WO2002060681A1 (en) 2002-08-08
DK1368188T3 (en) 2010-08-23
EP1368188A1 (en) 2003-12-10

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