CN114735967A - Aluminum ash magnesium slag resin combined petroleum fracturing propping agent and preparation method thereof - Google Patents
Aluminum ash magnesium slag resin combined petroleum fracturing propping agent and preparation method thereof Download PDFInfo
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- CN114735967A CN114735967A CN202210463697.0A CN202210463697A CN114735967A CN 114735967 A CN114735967 A CN 114735967A CN 202210463697 A CN202210463697 A CN 202210463697A CN 114735967 A CN114735967 A CN 114735967A
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- Prior art keywords
- magnesium slag
- aluminum ash
- resin
- propping agent
- grinding
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Links
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 68
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 67
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 title claims abstract description 64
- 229910052749 magnesium Inorganic materials 0.000 title claims abstract description 64
- 239000011777 magnesium Substances 0.000 title claims abstract description 64
- 239000002893 slag Substances 0.000 title claims abstract description 63
- 239000003208 petroleum Substances 0.000 title claims abstract description 41
- 229920005989 resin Polymers 0.000 title claims abstract description 41
- 239000011347 resin Substances 0.000 title claims abstract description 41
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 39
- 238000002360 preparation method Methods 0.000 title abstract description 6
- 238000000034 method Methods 0.000 claims abstract description 15
- 239000008187 granular material Substances 0.000 claims abstract description 9
- 238000002156 mixing Methods 0.000 claims description 20
- 230000001788 irregular Effects 0.000 claims description 10
- 229920002545 silicone oil Polymers 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 9
- 239000003822 epoxy resin Substances 0.000 claims description 8
- 229920000647 polyepoxide Polymers 0.000 claims description 8
- 238000005096 rolling process Methods 0.000 claims description 8
- 238000000227 grinding Methods 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 6
- 239000004411 aluminium Substances 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- 238000009837 dry grinding Methods 0.000 claims description 4
- 239000012798 spherical particle Substances 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 4
- 238000005453 pelletization Methods 0.000 claims description 2
- 238000009736 wetting Methods 0.000 claims 1
- 239000012530 fluid Substances 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 9
- 230000007613 environmental effect Effects 0.000 abstract description 8
- 239000002994 raw material Substances 0.000 abstract description 6
- 239000000126 substance Substances 0.000 abstract description 6
- 239000002699 waste material Substances 0.000 abstract description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- 229910052681 coesite Inorganic materials 0.000 description 6
- 229910052906 cristobalite Inorganic materials 0.000 description 6
- 239000000377 silicon dioxide Substances 0.000 description 6
- 229910052682 stishovite Inorganic materials 0.000 description 6
- 229910052905 tridymite Inorganic materials 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 238000006703 hydration reaction Methods 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 229910001610 cryolite Inorganic materials 0.000 description 3
- IOXPXHVBWFDRGS-UHFFFAOYSA-N hept-6-enal Chemical compound C=CCCCCC=O IOXPXHVBWFDRGS-UHFFFAOYSA-N 0.000 description 3
- CAVCGVPGBKGDTG-UHFFFAOYSA-N alumanylidynemethyl(alumanylidynemethylalumanylidenemethylidene)alumane Chemical compound [Al]#C[Al]=C=[Al]C#[Al] CAVCGVPGBKGDTG-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
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 2
- 229910001634 calcium fluoride Inorganic materials 0.000 description 2
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 2
- 229910052593 corundum Inorganic materials 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000036571 hydration Effects 0.000 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910001845 yogo sapphire Inorganic materials 0.000 description 2
- 229910000503 Na-aluminosilicate Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical compound [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 229910001570 bauxite Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000429 sodium aluminium silicate Substances 0.000 description 1
- 235000012217 sodium aluminium silicate Nutrition 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/10—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C04B26/14—Polyepoxides
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
The invention provides an aluminum ash magnesium slag resin combined petroleum fracturing propping agent and a preparation method thereof. The method takes the waste magnesium slag, the aluminum ash and the resin as main raw materials, prepares the wet pug with proper dry and wet property, plasticity and fluidity, re-granulates, balls, solidifies and maintains the prepared oil propping agent for fracturing, achieves the performances and the quality of high strength, good sphericity and no chemical action with fracturing fluid and reservoir fluid, achieves the effect and the purpose of comprehensively and highly utilizing the magnesium slag and the aluminum ash, and has positive significance in the aspects of economy, environmental protection, society and the like for saving resources, reducing the occupation of magnesium slag and aluminum ash stockpiling land and reducing other environmental protection negative effects.
Description
Technical Field
The invention belongs to the technical field of comprehensive utilization of waste resources, and particularly relates to an aluminum ash magnesium slag resin combined petroleum fracturing propping agent and a preparation method thereof.
Background
At present, the petroleum fracturing propping agent is formed by firing bauxite as a raw material at high temperature or combining ceramic or glass powder with resin, has the defects of high manufacturing cost and large resource consumption, and the magnesium slag for preparing metal magnesium by a Pidgeon method mainly comprises 2 CaO. SiO2Aluminum ash (secondary aluminum ash obtained by recovering metal aluminum) has certain gelling property, 2 CaO. SiO2After fine grinding, the petroleum fracturing propping agent is a strong inorganic nonmetallic cementing material, so that if the petroleum fracturing propping agent which takes the aluminum ash and the magnesium slag as raw materials and adopts resin combination and the preparation method thereof are invented, not only can the full value of the aluminum ash and the magnesium slag be utilized at a high value, but also resources can be saved, the petroleum fracturing propping agent has positive significance in the aspects of economy, environmental protection and the like for comprehensively utilizing the aluminum ash and the magnesium slag, reducing the occupation of the stockpiling land of the aluminum ash and the magnesium slag and reducing other negative effects of environmental protection.
Disclosure of Invention
The invention aims to: the invention mainly aims at the above situation and aims at overcoming the defects of the prior art, and provides a resin-bonded petroleum fracturing propping agent which takes aluminum ash magnesium slag as a raw material and utilizes the aluminum ash magnesium slag with high full value and a preparation method thereof.
The technical scheme of the invention is as follows: the petroleum fracturing propping agent is prepared by grinding, mixing, homogenizing, balling, curing and moistening the magnesium slag, the aluminum ash, the grinding-aid retarder and the resin; the content of magnesium slag in the petroleum fracturing propping agent is not less than 60%, the content of resin is not more than 15%, the content of grinding-aid retarder is not more than 0.75%, and the balance is aluminum ash, wherein the petroleum fracturing propping agent is spherical particles with the granularity of 0.35-0.75 mm, the sphericity of not less than 0.85 and the compressive strength of not less than 35 Mpa.
The content of aluminum ash in the petroleum fracturing propping agent is not less than 60%, the content of resin is not more than 15%, the content of grinding-aid retarder is not more than 0.75%, and the balance is magnesium slag.
The granularity of the aluminum ash is not more than 1.0 mm.
The granularity of the magnesium slag is not more than 35 mm.
The grinding-aid retarder is silicone oil, and the viscosity of the silicone oil is not more than 10 poise.
The resin is epoxy resin, and the viscosity of the epoxy resin is not more than 20 poise.
The method for preparing the aluminum ash magnesium slag resin combined petroleum fracturing propping agent comprises the following steps:
the method comprises the following steps: spraying the grinding-aid retarder on the surfaces of magnesium slag and aluminum ash and uniformly mixing to obtain granules of blocks to be ground;
step two: mixing, homogenizing and dry-grinding granules to be ground into dry-mixed materials with the particle size not more than 0.075 mm;
step three: adding the dry mixture and resin into a mixing mill, and mixing to obtain wet mixed mud with appropriate dry and wet properties and fluidity;
step four: preparing irregular wet mother balls with the granularity of 0.45-0.75 mm from the mixed wet mud material through a granulator;
step five: rolling the irregular wet cue ball in a ball making and rolling machine to form a qualified wet ball with the diameter of 0.35-0.75 mm;
step six: and (3) drying the qualified wet balls with the thickness of 0.35-0.75 mm for 48 hours in dry air at room temperature to obtain the petroleum fracturing propping agent, and standing, curing and hardening for 28 days under the humid air condition at room temperature for use.
The invention has the beneficial effects that: the method takes the waste magnesium slag, the aluminum ash and the resin as main raw materials, prepares the wet pug with proper dry and wet property, plasticity and fluidity, re-granulates, balls, solidifies and maintains the prepared oil propping agent for fracturing, achieves the performances and the quality of high strength, good sphericity and no chemical action with fracturing fluid and reservoir fluid, achieves the effect and the purpose of comprehensively and highly utilizing the magnesium slag and the aluminum ash, and has positive significance in the aspects of economy, environmental protection, society and the like for saving resources, reducing the occupation of magnesium slag and aluminum ash stockpiling land and reducing other environmental protection negative effects.
The specific implementation mode is as follows:
the following further describes the embodiments of the present invention in detail.
The aluminum ash magnesium slag resin combined petroleum fracturing propping agent comprises magnesium slag, aluminum ash, a grinding-aid retarder and resin, and is prepared by grinding, mixing, homogenizing, pelletizing, curing and moistening the magnesium slag, the aluminum ash, the grinding-aid retarder and the resin; the content of magnesium slag in the petroleum fracturing propping agent is not less than 60%, the content of resin is not more than 15%, the content of grinding-aid retarder is not more than 0.75%, and the balance is aluminum ash, wherein the petroleum fracturing propping agent is spherical particles with the granularity of 0.35-0.75 mm, the sphericity of not less than 0.85 and the compressive strength of not less than 35 Mpa.
The content of aluminum ash in the petroleum fracturing propping agent is not less than 60%, the content of resin is not more than 15%, the content of grinding-aid retarder is not more than 0.75%, and the balance is magnesium slag.
The granularity of the aluminum ash is not more than 1.0 mm.
The granularity of the magnesium slag is not more than 35 mm.
The grinding-aid retarder is silicone oil, and the viscosity of the silicone oil is not more than 10 poise.
The resin is epoxy resin, and the viscosity of the epoxy resin is not more than 20 poise.
The method for preparing the aluminum ash magnesium slag resin combined petroleum fracturing propping agent comprises the following steps:
the method comprises the following steps: spraying the grinding-aid retarder on the surfaces of magnesium slag and aluminum ash and uniformly mixing to obtain granules of blocks to be ground;
step two: mixing, homogenizing and dry-grinding granules to be ground into dry-mixed materials with the particle size not more than 0.075 mm;
step three: adding the dry mixture and resin into a mixing mill, and mixing to obtain wet mixed mud with appropriate dry and wet properties and fluidity;
step four: preparing irregular wet mother balls with the granularity of 0.45-0.75 mm from the mixed wet mud material through a granulator;
step five: rolling the irregular wet cue ball in a ball making and rolling machine to form a qualified wet ball with the diameter of 0.35-0.75 mm;
step six: and (3) drying the qualified wet balls with the thickness of 0.35-0.75 mm for 48 hours in dry air at room temperature to obtain the petroleum fracturing propping agent, and standing, curing and hardening for 28 days under the humid air condition at room temperature for use.
The first embodiment is as follows: when the invention is used for preparing the petroleum fracturing propping agent, CaO and SiO in the used magnesium slag2The sum of the contents of the components is 89%, the granularity of the magnesium slag is 8-35 mm, the grinding-assisting retarder is silicone oil, the viscosity of the silicone oil is 10 poise, and the main component in the aluminum ash is Al2O3Content and SiO2Simultaneously contains metal aluminum, aluminum carbide, aluminum nitride, sodium hexafluoroaluminate and the like; the mass ratio of the magnesium slag to the aluminum ash is 7: 3.
The method for preparing the aluminum ash magnesium slag petroleum fracturing propping agent comprises the following steps:
the method comprises the following steps: spraying a grinding-aid retarder on the surfaces of the magnesium slag and the aluminum ash, and uniformly mixing to form aggregate to be ground, wherein the grinding-aid retarder is 0.55 percent of the sum of the mass of the magnesium slag and the mass of the aluminum ash;
step two: mixing, homogenizing and dry-grinding granules to be ground into dry-mixed materials with the particle size of not more than 0.075 mm;
step three: adding the dry mixture and resin into a mixing mill, and mixing to obtain wet mixed mud with appropriate dry and wet property, plasticity and fluidity, wherein the resin is epoxy resin, the viscosity is 16 poise, and the resin accounts for 15 percent of the mass of the dry mixture;
step four: preparing irregular wet mother balls with the granularity of 0.45-0.70 mm from the mixed wet mud material through a granulator;
step five: rolling the irregular wet cue ball in a balling and rolling machine to form a qualified wet ball with the diameter of 0.4-0.70 mm;
step six: and (3) drying the qualified wet balls with the thickness of 0.4-0.70 mm for 48 hours in dry air at room temperature to obtain the petroleum fracturing propping agent, and then standing, curing and hardening for 28 days under the humid air condition at room temperature for use.
In the first embodiment, the grinding-aid retarder improves the dispersion degree of the magnesium slag in the grinding process on one hand, and the grinding-aid retarder silicon oil is coated on the surface of the magnesium slag fine powder to prevent 2 CaO. SiO in the magnesium slag2Hydration, simultaneously preventing the hydration of metal aluminum and carbide and nitride of aluminum in the aluminum ash, and simultaneously preventing the hardening of the irregular wet mother ball which is used for preparing mud by mixing and preparing the irregular wet mother ball too fast. After drying in dry air at room temperature for 48 hours, standing in humid air at room temperature, solidifying and hardening for 28 days, the hygroscopic substances in the aluminum ash and magnesium slag slowly absorb moisture (water) [ 2 CaO. SiO in magnesium slag)2Hydration of metallic aluminium in aluminium ash and carbide and nitride of aluminium]And undergoes a gelling reaction to form a water-insoluble gelled hydrate of CaO (Al)2O3·SiO2）·nH2O (which has the properties and characteristics of cement), a small amount of sodium hexafluoroaluminate in the aluminum ash reacts with hydrated magnesium slag to form CaF (calcium fluoride) which is insoluble in water2And sodium aluminosilicate, so that the petroleum fracturing propping agent has high strength and performance and quality of not generating chemical action with fracturing fluid and reservoir fluid on the basis of resin bonding strength.
In the first embodiment, the sphericity of the particle size in the range of 0.4mm to 0.70mm is 0.85, and the pressure resistance is highThe strength is 36MPa, and the petroleum fracturing propping agent is CaO (Al) of a gel hydrate2O3·SiO2）·nH2The O-based gelled and hardened spherical particles do not have chemical action with fracturing fluid and reservoir fluid, and the petroleum fracturing propping agent of the embodiment I meets the performance requirements of petroleum exploitation enterprises and has good effect.
Example two: when the invention is used for preparing the petroleum fracturing propping agent, CaO and SiO in the used magnesium slag2The sum of the contents of the components is 89%, the granularity of the magnesium slag is 8-35 mm, the grinding-assisting retarder is silicone oil, the viscosity of the silicone oil is 10 poise, and the main component in the aluminum ash is Al2O3Content and SiO2Simultaneously contains metal aluminum, aluminum carbide, aluminum nitride, sodium hexafluoroaluminate and the like; the mass ratio of the magnesium slag to the aluminum ash is 1: 1.
The method and the steps for preparing the aluminum ash magnesium slag petroleum fracturing propping agent in the second embodiment are the same as those in the first embodiment, the grinding retarder is 0.6 percent of the sum of the mass of the magnesium slag and the aluminum ash, the resin is epoxy resin, the viscosity is 16 poise, and the resin is 18 percent of the mass of the dry mixture;
in the second embodiment, the prepared oil fracturing propping agent has the sphericity of 0.83 and the compressive strength of 38MPa within the granularity range of 0.35 mm-0.75 mm, meets the performance requirements of oil exploitation enterprises, and has a good effect.
In the first and second embodiments, the generated gas generated in the hydration process of the aluminum ash in the sixth step is collected and treated.
The technical scheme and the first and second embodiments show that the waste magnesium slag, the aluminum ash and the resin are used as main raw materials, the wet pug which is dry, wet, plastic and appropriate in flowability is prepared under the action of the grinding-aid retarder, the petroleum propping agent prepared by solidifying and maintaining is fractured, the performances and the qualities of high strength, good sphericity and no chemical action with fracturing fluid and reservoir fluid are achieved, the effects and the purposes of comprehensively and highly utilizing the magnesium slag and the aluminum ash are achieved, and the method has positive significance in the aspects of economy, environmental protection, society and the like on reducing the magnesium slag and aluminum ash stockpiling land occupation and reducing other environmental protection negative effects.
The above description is only for the preferred embodiment of the present invention, but the protection direction of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the scope of the present invention, and the technical solution and the inventive concept of the present invention are equivalent to be replaced or changed within the technical scope of the present invention.
Claims (7)
1. The utility model provides an aluminium ash magnesium slag resin combines oil fracturing proppant, includes magnesium slag, aluminium ash, grinding aid retarder and resin, its characterized in that: the petroleum fracturing propping agent is prepared by grinding, mixing, homogenizing, pelletizing, solidifying, wetting and maintaining magnesium slag, aluminum ash, a grinding-aid retarder and resin; the content of magnesium slag in the petroleum fracturing propping agent is not less than 60%, the content of resin is not more than 15%, the content of grinding-aid retarder is not more than 0.75%, and the balance is aluminum ash, wherein the petroleum fracturing propping agent is spherical particles with the granularity of 0.35-0.75 mm, the sphericity of not less than 0.85 and the compressive strength of not less than 35 Mpa.
2. The oil fracturing proppant of claim 1, wherein: the content of aluminum ash in the petroleum fracturing propping agent is not less than 60%, the content of resin is not more than 15%, the content of grinding-aid retarder is not more than 0.75%, and the balance is magnesium slag.
3. The aluminum ash magnesium slag resin combined petroleum fracturing proppant of claim 1, wherein: the granularity of the aluminum ash is not more than 1.0 mm.
4. The aluminum ash magnesium slag resin combined petroleum fracturing proppant of claim 1, wherein: the granularity of the magnesium slag is not more than 35 mm.
5. The aluminum ash magnesium slag resin combined petroleum fracturing proppant of claim 1, wherein: the grinding-aid retarder is silicone oil, and the viscosity of the silicone oil is not more than 10 poise.
6. The aluminum ash magnesium slag resin combined petroleum fracturing proppant of claim 1, wherein: the resin is epoxy resin, and the viscosity of the epoxy resin is not more than 20 poise.
7. The method for preparing the aluminum ash magnesium slag resin combined petroleum fracturing propping agent as defined in claims 1-6 is characterized by comprising the following steps:
the method comprises the following steps: spraying the grinding-aid retarder on the surfaces of magnesium slag and aluminum ash and uniformly mixing to obtain granules of blocks to be ground;
step two: mixing, homogenizing and dry-grinding granules to be ground into dry-mixed materials with the particle size not more than 0.075 mm;
step three: adding the dry mixture and resin into a mixing mill, and mixing to obtain wet mixed mud with appropriate dry and wet properties and fluidity;
step four: preparing irregular wet mother balls with the granularity of 0.45-0.75 mm from the mixed wet mud material through a granulator;
step five: rolling the irregular wet cue ball in a ball making and rolling machine to form a qualified wet ball with the diameter of 0.35-0.75 mm;
step six: and (3) drying the qualified wet balls with the thickness of 0.35-0.75 mm for 48 hours in dry air at room temperature to obtain the petroleum fracturing propping agent, and standing, curing and hardening for 28 days under the humid air condition at room temperature for use.
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| CN202210463697.0A CN114735967A (en) | 2022-04-29 | 2022-04-29 | Aluminum ash magnesium slag resin combined petroleum fracturing propping agent and preparation method thereof |
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| CN202210463697.0A CN114735967A (en) | 2022-04-29 | 2022-04-29 | Aluminum ash magnesium slag resin combined petroleum fracturing propping agent and preparation method thereof |
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