CN117106433B - Petroleum fracturing propping agent and preparation method thereof - Google Patents
Petroleum fracturing propping agent and preparation method thereof Download PDFInfo
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- CN117106433B CN117106433B CN202311090089.0A CN202311090089A CN117106433B CN 117106433 B CN117106433 B CN 117106433B CN 202311090089 A CN202311090089 A CN 202311090089A CN 117106433 B CN117106433 B CN 117106433B
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- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 39
- 239000003208 petroleum Substances 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 99
- 239000002699 waste material Substances 0.000 claims abstract description 73
- 239000000919 ceramic Substances 0.000 claims abstract description 52
- 239000002994 raw material Substances 0.000 claims abstract description 32
- 239000004945 silicone rubber Substances 0.000 claims description 50
- 239000002245 particle Substances 0.000 claims description 42
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 23
- 238000005245 sintering Methods 0.000 claims description 18
- 238000010438 heat treatment Methods 0.000 claims description 13
- 239000004944 Liquid Silicone Rubber Substances 0.000 claims description 12
- 239000003921 oil Substances 0.000 claims description 11
- DLHONNLASJQAHX-UHFFFAOYSA-N aluminum;potassium;oxygen(2-);silicon(4+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[Al+3].[Si+4].[Si+4].[Si+4].[K+] DLHONNLASJQAHX-UHFFFAOYSA-N 0.000 claims description 7
- 229910001570 bauxite Inorganic materials 0.000 claims description 7
- 239000004927 clay Substances 0.000 claims description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 6
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 claims description 4
- 239000010459 dolomite Substances 0.000 claims description 4
- 229910000514 dolomite Inorganic materials 0.000 claims description 4
- 229910052863 mullite Inorganic materials 0.000 claims description 4
- 239000010453 quartz Substances 0.000 claims description 4
- 239000010456 wollastonite Substances 0.000 claims description 4
- 229910052882 wollastonite Inorganic materials 0.000 claims description 4
- 239000005995 Aluminium silicate Substances 0.000 claims description 3
- 235000012211 aluminium silicate Nutrition 0.000 claims description 3
- 229910052570 clay Inorganic materials 0.000 claims description 3
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 3
- 229910010293 ceramic material Inorganic materials 0.000 claims description 2
- 238000005469 granulation Methods 0.000 claims description 2
- 230000003179 granulation Effects 0.000 claims description 2
- 230000000630 rising effect Effects 0.000 claims description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 12
- 239000000377 silicon dioxide Substances 0.000 description 9
- 238000005520 cutting process Methods 0.000 description 8
- 238000007873 sieving Methods 0.000 description 8
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 7
- 229910052710 silicon Inorganic materials 0.000 description 7
- 239000010703 silicon Substances 0.000 description 7
- 229910052681 coesite Inorganic materials 0.000 description 6
- 229910052906 cristobalite Inorganic materials 0.000 description 6
- 229910052682 stishovite Inorganic materials 0.000 description 6
- 229910052905 tridymite Inorganic materials 0.000 description 6
- 238000000498 ball milling Methods 0.000 description 5
- BYFGZMCJNACEKR-UHFFFAOYSA-N aluminium(i) oxide Chemical compound [Al]O[Al] BYFGZMCJNACEKR-UHFFFAOYSA-N 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 239000003245 coal Substances 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 229910052593 corundum Inorganic materials 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 229910001845 yogo sapphire Inorganic materials 0.000 description 2
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- 239000006004 Quartz sand Substances 0.000 description 1
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 1
- QXJJQWWVWRCVQT-UHFFFAOYSA-K calcium;sodium;phosphate Chemical compound [Na+].[Ca+2].[O-]P([O-])([O-])=O QXJJQWWVWRCVQT-UHFFFAOYSA-K 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000011258 core-shell material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
The invention provides a petroleum fracturing propping agent, which comprises a ceramic raw material and a silicon rubber waste material with the mass ratio of (1-15), wherein the silicon rubber waste material comprises a flexible silicon rubber waste material and a hard silicon rubber waste material with the mass ratio of (1-5), and the content of Si element in the silicon rubber waste material is 1-30%. Meanwhile, the invention also provides a preparation method of the petroleum fracturing propping agent, which is simple, low in cost and convenient for market development.
Description
Technical Field
The invention relates to the field of petroleum exploitation, in particular to a petroleum fracturing propping agent and a preparation method thereof.
Background
When petroleum and natural gas is mined in deep well, the high-closure-pressure low-permeability ore deposit is subjected to fracturing treatment, so that the stratum containing the petroleum and the gas is cracked, and the petroleum and the gas are collected from channels formed by the cracks. The ceramic supporting material enters the stratum along with the high-pressure solution to be filled in the stratum cracks, and plays a role in supporting the cracks not to be closed due to stress release, so that the high diversion capacity is maintained, the oil gas is unblocked, and the yield is increased. Practice proves that the oil well fractured by using the ceramsite propping agent can improve the yield by 30-50%, and the service life of the oil and gas well can be prolonged.
The ceramic proppant is prepared by sintering a plurality of raw materials such as high-quality bauxite and the like, and is a substitute for natural quartz sand, glass spheres, metal spheres and the like. For example: the low-density high-strength ceramic proppant coated with silicon dioxide and the preparation method thereof disclosed in Chinese patent CN113956864A take the ceramic proppant as an inner core, and silicon dioxide is deposited on the surface of the ceramic proppant to form a silicon dioxide coated ceramic proppant structure. But is not limited to. According to the technical scheme disclosed in China patent CN113956864A, a ceramic proppant is taken as a core, carbon dioxide is deposited on the surface of ceramic to form a shell, a core-shell structure is not stable, and meanwhile, tetraethoxysilane is taken as a raw material, so that the cost is too high.
In order to solve the above problems, an ideal technical solution is always sought.
Disclosure of Invention
The invention aims at overcoming the defects of the prior art, and provides a petroleum fracturing propping agent and a preparation method thereof.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
a petroleum fracturing propping agent comprises a ceramic raw material and a silicon rubber waste material with the mass ratio of (1-15), wherein the silicon rubber waste material comprises a flexible silicon rubber waste material and a hard silicon rubber waste material with the mass ratio of (1-5), and the content of Si element in the silicon rubber waste material is 1-30%.
The ceramic raw material is one or a combination of more of gangue, potassium feldspar, mullite, dolomite, wollastonite, tuff, quartz, clay, bauxite, kaolin and bauxite.
The Shore A hardness of the hard silicone rubber waste is 60-90, and the Shore A hardness of the flexible silicone rubber waste is 10-50.
The preparation method of the petroleum fracturing propping agent comprises the following steps:
(1) Pretreating silicone rubber waste;
(2) Pretreating a ceramic raw material;
(3) Granulating, sintering and cooling the treated silicon rubber waste and ceramic raw materials to obtain the petroleum fracturing propping agent.
In the step (1), the hard silicone rubber waste is taken to be sequentially cleaned, cut and crushed to obtain silicone rubber particles, and the flexible silicone rubber waste is taken to be cut and fused to obtain liquid silicone rubber.
And crushing and ball milling the ceramic raw materials to obtain ceramic particles.
In the step (3), liquid silicone rubber, silicone rubber particles and ceramic particles are mixed and granulated, and then sintered and cooled to obtain the petroleum fracturing propping agent.
In the step (3), the particle size of the mixed granulation is 60-70 meshes, and the particle size of the petroleum fracturing propping agent is 30-50 meshes.
Sintering schedule in step (3): under the vacuum environment, heating to 300-800 ℃ for vacuum sintering to 5-30 min, charging oxygen for continuous sintering to 5-10 min, then vacuumizing, and continuously heating to 900-1100 ℃ for sintering to 5-30 min.
The temperature rising rate in the step (3) is 5-10 ℃/min.
Compared with the prior art, the petroleum fracturing propping agent provided by the invention has outstanding substantial characteristics and remarkable progress, and particularly comprises the ceramic raw material and the silicon rubber waste with the mass ratio of 100 (1-15), wherein the ceramic raw material can be a conventional ceramic material, and the silicon rubber waste can be used for recycling the conventional silicon rubber waste so as to achieve the aim of reducing the cost. Specifically, in the preparation process, the volatile matters of the silicone rubber volatilize to enable the petroleum fracturing propping agent to form a porous structure, so that the density of the petroleum fracturing propping agent is reduced, and meanwhile, the silicon and other inorganic fillers in the silicone rubber are combined with other ceramic components in the form of oxides to play a role in strengthening
Detailed Description
The technical scheme of the invention is further described in detail through the following specific embodiments. In the following examples, coal gangue is solid waste discharged during coal mining and coal washing, and the main components of ：SiO2 60%～65%、Al2O316%～18%、Fe2O3 12.45%～14.27%、CaO0.42%～2.32%、MgO 1.40%～2.41%、TiO22.50%～4%、P2O5 0.007%～0.24%、K2O+Na2O1.4%～3.9%、V2O5 0.008%～0.03%; potassium feldspar are as follows: 260.0 to 68.0 percent of SiO2, 15.0 to 22.0 percent of Al2O3, 9.05 to 15.0 percent of K2O and 2.00 to 2.55 percent of Na 2O. The main components of the mullite are as follows: 42-45% of Al2O3, less than or equal to 1.0% of Fe2O3, 49-55% of SiO2 and less than or equal to 4.0% of Na 2O; the main component of dolomite is CaMg (CO 3) 2; the main component of wollastonite is Ca3 [ Si3O9 ]; the main components of tuff are as follows: 72-74% of SiO2, 315-18% of Al2O, 1.5-2.0% of Na2O, 7.0-9.0% of K2O, less than 0.20% of Fe2O3, less than 0.5% of CaO, less than 0.3% of MgO and less than 2.5% of burning loss; the main component of quartz is SiO2; the main components in clay are as follows: 32% -38% of SiO2 and 42% -50% of Al2O 3; the hard silicon rubber waste can be waste materials such as silicon rubber for special printing, ceramic rubber tubes and the like; the flexible silicone rubber waste may be medical instrument/electronic component seals or the like.
A petroleum fracturing propping agent comprises a ceramic raw material and a silicon rubber waste material with the mass ratio of (1-15), wherein the silicon rubber waste material comprises a flexible silicon rubber waste material and a hard silicon rubber waste material with the mass ratio of (1-5), and the content of Si element in the silicon rubber waste material is 1-30%.
The ceramic raw material is one or a combination of more of gangue, potassium feldspar, mullite, dolomite, wollastonite, tuff, quartz, clay, bauxite, kaolin and bauxite.
The Shore A hardness of the hard silicone rubber waste is 60-90, and the Shore A hardness of the flexible silicone rubber waste is 10-50.
The preparation method of the petroleum fracturing propping agent comprises the following steps:
(1) Pretreating silicone rubber waste; taking hard silicone rubber waste, cleaning, cutting and crushing in sequence to obtain silicone rubber particles, and taking flexible silicone rubber waste for cutting and melting to obtain liquid silicone rubber
(2) Pretreating a ceramic raw material; taking ceramic raw materials for crushing and ball milling to obtain ceramic particles
(3) Mixing and granulating liquid silicone rubber, silicone rubber particles and ceramic particles, sieving, sintering a coarse blank with the particle size of 60-70 meshes, heating to the temperature of 300-800 ℃ in a vacuum environment at the heating rate of 5-10 ℃/min, vacuum sintering at the temperature of 5-30 min ℃, charging oxygen, continuously sintering at the temperature of 5-10 min, vacuumizing, continuously heating to the temperature of 900-1100 ℃ and sintering at the temperature of 5-30 min, cooling and sieving to obtain the petroleum fracturing propping agent with the particle size of 30-50 meshes.
Example 1
An oil fracturing propping agent comprises ceramic raw materials and silicone rubber waste materials in a mass ratio of 100:12, wherein the silicone rubber waste materials comprise flexible silicone rubber waste materials and hard silicone rubber waste materials in a mass ratio of 1:2.
The ceramic raw material comprises 10 parts of potassium feldspar, 14 parts of tuff and 55 parts of light burned clay in parts by weight.
The hardness of the hard silicon rubber waste is 81 Shore A, the elongation at break is 280%, and the silicon element content is 27%; the flexible silicon rubber waste adopts transparent silicon rubber waste with the Shore A hardness of 15, the elongation at break is 460 percent, and the silicon element content is 16 percent.
The preparation method of the petroleum fracturing propping agent comprises the following steps:
(1) Pretreating silicone rubber waste; sequentially cleaning, cutting and crushing hard silicone rubber waste to obtain silicone rubber particles with the particle size smaller than 10 mu m, and cutting and melting flexible silicone rubber waste to obtain liquid silicone rubber;
(2) Pretreating a ceramic raw material; crushing and ball milling ceramic raw materials to obtain ceramic particles with the particle size smaller than 10 mu m;
(3) Mixing and granulating liquid silicone rubber, silicone rubber particles and ceramic particles, sieving, sintering coarse blanks with the particle size of 60-70 meshes, heating to the temperature of 700-800 ℃ at the temperature of 30min ℃ per minute under a vacuum environment, charging oxygen, continuously preserving heat for 10min, vacuumizing, continuously heating to the temperature of 900-1100 ℃ at the temperature of 20 min, cooling, and sieving to obtain the petroleum fracturing propping agent with the particle size of 30-50 meshes.
Referring to SY 17125-2019 fracturing propping agent performance indexes and evaluation test methods, performing performance detection on the fracturing propping agent obtained in the embodiment 3, wherein the volume density is 1.60 g/cm 3; an apparent density of 2.73 g/cm 3; the breakage rate at a closing pressure of 86 MPa was 3.5%.
Example 2
An oil fracturing propping agent comprises ceramic raw materials and silicone rubber waste materials in a mass ratio of 100:10, wherein the silicone rubber waste materials comprise flexible silicone rubber waste materials and hard silicone rubber waste materials in a mass ratio of 1:1.
The ceramic raw material comprises 10 parts of potassium feldspar, 14 parts of tuff and 55 parts of light burned clay in parts by weight.
The hardness of the hard silicon rubber waste is 81 Shore A, the elongation at break is 280%, and the silicon element content is 27%; the flexible silicon rubber waste adopts transparent silicon rubber waste with the Shore A hardness of 15, the elongation at break is 460 percent, and the silicon element content is 16 percent.
The preparation method of the petroleum fracturing propping agent comprises the following steps:
(1) Pretreating silicone rubber waste; sequentially cleaning, cutting and crushing hard silicone rubber waste to obtain silicone rubber particles with the particle size smaller than 10 mu m, and cutting and melting flexible silicone rubber waste to obtain liquid silicone rubber;
(2) Pretreating a ceramic raw material; crushing and ball milling ceramic raw materials to obtain ceramic particles with the particle size smaller than 10 mu m;
(3) Mixing and granulating liquid silicone rubber, silicone rubber particles and ceramic particles, sieving, sintering coarse blanks with the particle size of 60-70 meshes, heating to the temperature of 700-800 ℃ at the temperature of 30min ℃ per minute under a vacuum environment, charging oxygen, continuously preserving heat for 10min, vacuumizing, continuously heating to the temperature of 900-1100 ℃ at the temperature of 20 min, cooling, and sieving to obtain the petroleum fracturing propping agent with the particle size of 30-50 meshes.
Referring to SY 17125-2019 fracturing propping agent performance indexes and evaluation test methods, performing performance detection on the fracturing propping agent obtained in the embodiment 3, wherein the volume density is 1.62 g/cm 3; an apparent density of 2.70 g/cm 3; the breaking rate was 3.9% with a closing pressure of 86 MPa.
Example 3
An oil fracturing propping agent comprises ceramic raw materials and silicone rubber waste materials in a mass ratio of 100:15, wherein the silicone rubber waste materials comprise flexible silicone rubber waste materials and hard silicone rubber waste materials in a mass ratio of 1:2.
The ceramic raw material comprises 10 parts of potassium feldspar, 14 parts of tuff and 55 parts of light burned clay in parts by weight.
The hardness of the hard silicon rubber waste is 81 Shore A, the elongation at break is 280%, and the silicon element content is 27%; the flexible silicon rubber waste adopts transparent silicon rubber waste with the Shore A hardness of 15, the elongation at break is 460 percent, and the silicon element content is 16 percent.
The preparation method of the petroleum fracturing propping agent comprises the following steps:
(1) Pretreating silicone rubber waste; sequentially cleaning, cutting and crushing hard silicone rubber waste to obtain silicone rubber particles with the particle size smaller than 10 mu m, and cutting and melting flexible silicone rubber waste to obtain liquid silicone rubber;
(2) Pretreating a ceramic raw material; crushing and ball milling ceramic raw materials to obtain ceramic particles with the particle size smaller than 10 mu m;
(3) Mixing and granulating liquid silicone rubber, silicone rubber particles and ceramic particles, sieving, sintering coarse blanks with the particle size of 60-70 meshes, heating to the temperature of 700-800 ℃ at the temperature of 30min ℃ per minute under a vacuum environment, charging oxygen, continuously preserving heat for 10min, vacuumizing, continuously heating to the temperature of 900-1100 ℃ at the temperature of 20 min, cooling, and sieving to obtain the petroleum fracturing propping agent with the particle size of 30-50 meshes.
Referring to SY 17125-2019 fracturing propping agent performance indexes and evaluation test methods, performing performance detection on the fracturing propping agent obtained in the embodiment 3, wherein the volume density is 1.58 g/cm 3; an apparent density of 2.60 g/cm 3; the breaking rate was 4.5% with a closing pressure of 86 MPa.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same; while the invention has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that: modifications may be made to the specific embodiments of the invention or to certain technical features may be substituted, for example: replacing ceramic raw materials, replacing a granulating mode and the like; without departing from the spirit of the invention, it is intended to cover the scope of the invention as claimed.
Claims (7)
1. An oil fracturing propping agent is characterized in that: the ceramic material comprises a ceramic raw material and a silicon rubber waste material with the mass ratio of 100 (1-15), wherein the silicon rubber waste material comprises a flexible silicon rubber waste material and a hard silicon rubber waste material with the mass ratio of 1 (1-5), and the content of Si element in the silicon rubber waste material is 1-30%; the Shore A hardness of the hard silicon rubber waste is 60-90, and the Shore A hardness of the flexible silicon rubber waste is 10-50;
The preparation method of the petroleum fracturing propping agent comprises the following steps:
(1) Pretreating silicone rubber waste;
(2) Pretreating a ceramic raw material;
(3) Granulating, sintering and cooling the treated silicone rubber waste and ceramic raw materials to obtain the petroleum fracturing propping agent; sintering schedule in step (3): under the vacuum environment, heating to 300-800 ℃ for vacuum sintering to 5-30 min, charging oxygen for continuous sintering to 5-10 min, then vacuumizing, and continuously heating to 900-1100 ℃ for sintering to 5-30 min.
2. The oil fracturing proppant of claim 1, wherein: the ceramic raw material is one or a combination of more of gangue, potassium feldspar, mullite, dolomite, wollastonite, tuff, quartz, clay, bauxite, kaolin and bauxite.
3. The oil fracturing proppant of claim 1, wherein: in the step (1), the hard silicone rubber waste is taken to be sequentially cleaned, cut and crushed to obtain silicone rubber particles, and the flexible silicone rubber waste is taken to be cut and fused to obtain liquid silicone rubber.
4. The oil fracturing proppant of claim 1, wherein: in the step (2), the ceramic raw material is crushed and ball-milled to obtain ceramic particles.
5. A petroleum fracturing propping agent according to claim 3, characterized in that: in the step (3), liquid silicone rubber, silicone rubber particles and ceramic particles are mixed and granulated, and then sintered and cooled to obtain the petroleum fracturing propping agent.
6. The oil fracturing proppant of claim 5, wherein: in the step (3), the particle size of the mixed granulation is 60-70 meshes, and the particle size of the petroleum fracturing propping agent is 30-50 meshes.
7. The oil fracturing proppant of claim 1, wherein: the temperature rising rate in the step (3) is 5-10 ℃/min.
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| CN105670301A (en) * | 2016-04-20 | 2016-06-15 | 中国科学院长春应用化学研究所 | Fire-resisting ceramic silicone rubber and preparation method thereof |
| CN105777024A (en) * | 2016-01-22 | 2016-07-20 | 北京融达建业建筑工程技术有限公司 | Oil and gas field environment-friendly fracturing propping agent and preparation method thereof |
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| US6705400B1 (en) * | 2002-08-28 | 2004-03-16 | Halliburton Energy Services, Inc. | Methods and compositions for forming subterranean fractures containing resilient proppant packs |
| US7255169B2 (en) * | 2004-09-09 | 2007-08-14 | Halliburton Energy Services, Inc. | Methods of creating high porosity propped fractures |
| US9796918B2 (en) * | 2013-01-30 | 2017-10-24 | Halliburton Energy Services, Inc. | Wellbore servicing fluids and methods of making and using same |
| US20140096954A1 (en) * | 2012-10-04 | 2014-04-10 | Geosierra Llc | Method of developing subsurface barriers |
| WO2018071636A1 (en) * | 2016-10-13 | 2018-04-19 | Soane, David, S. | Self-suspending proppants |
| CN111747689B (en) * | 2020-07-02 | 2021-12-28 | 胜利油田方圆陶业有限公司 | A kind of petroleum proppant and preparation method thereof |
| CN112126423A (en) * | 2020-10-16 | 2020-12-25 | 邵阳合成新型环保建材有限公司 | Petroleum fracturing propping agent added with coal gangue |
| CN115141622B (en) * | 2021-03-31 | 2024-01-09 | 广东清大同科环保技术有限公司 | Preparation method of petroleum fracturing propping agent and petroleum fracturing propping agent |
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| CN105777024A (en) * | 2016-01-22 | 2016-07-20 | 北京融达建业建筑工程技术有限公司 | Oil and gas field environment-friendly fracturing propping agent and preparation method thereof |
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