Gas suspension proppant for fracturing and preparation method thereof

Abstract

The preparation method comprises the following steps: S1, adding deionized water into a sample cup of a high-speed stirrer, weighing quartz sand, adding the quartz sand into the sample cup under a low-speed stirring condition, stirring at a high speed, drying the quartz sand in a drying oven, and cooling to room temperature for later use; s2, taking part of tetrahydrofuran into a test cup, taking a hydrophobic and aerophilic material, adding the hydrophobic and aerophilic material into the test cup, fully dissolving, and taking a silane coupling agent, adding the silane coupling agent into the test cup and uniformly dispersing under the condition of magnetic stirring; and S3, stirring the solution in the test cup by using a stirrer, spraying the solution in the test cup to the surface of the quartz sand in the S1 through a spraying process, putting the quartz sand into a drying oven for curing, taking out the quartz sand, and cooling the quartz sand to room temperature. The invention also discloses an air suspension proppant for fracturing. According to the gas suspension proppant for fracturing and the preparation method thereof, the problems that in an existing fracturing technology, a proppant is high in settling speed and uneven in distribution are solved.

Description

Technical Field

[0001] This invention belongs to the field of fracturing technology, specifically relating to a method for preparing air-suspended proppant for fracturing, and also relating to air-suspended proppant for fracturing. Background Technology

[0002] With the deepening development of unconventional reservoirs, slickwater fracturing has become one of the main technologies for oil and gas reservoir stimulation in Changqing Oilfield. Compared with high-viscosity fracturing fluids, slickwater easily forms complex fracture structures and has the characteristics of low cost, low viscosity, low damage, low friction, and easy flowback. However, the low viscosity of slickwater makes it difficult to carry proppant, resulting in problems such as rapid proppant settling and uneven proppant distribution. Furthermore, as the distance between horizontal wells increases, using high-viscosity fracturing fluids to carry proppant into the formation also presents problems such as uneven proppant distribution, difficulty in breaking up the gel, and increased development costs and environmental pressure. Therefore, it is necessary to develop an air-suspended proppant that can adsorb a large number of air bubbles on its surface to achieve a suspension effect under gas injection conditions, based on field requirements. That is, a layer of hydrophobic and gas-philic material is coated on the surface of the proppant. With gas injection, the surface of the proppant adsorbs air bubbles, increasing its buoyancy and thus suspending it in slickwater. This air-suspended proppant has good compatibility with low-viscosity slickwater, increasing the proppant concentration while saving the amount of thickener and water used for preparation, meeting different process requirements. Summary of the Invention

[0003] The purpose of this invention is to provide a method for preparing air-suspended proppant for fracturing, which solves the problems of fast settling speed and uneven distribution of proppant in existing fracturing technologies.

[0004] Another object of the present invention is to provide an air-suspended proppant for fracturing.

[0005] The technical solution adopted in this invention is a method for preparing air-suspended proppant for fracturing, comprising the following steps:

[0006] S1. Add deionized water to the sample cup of the high-speed stirrer, weigh a certain amount of quartz sand, add the certain amount of quartz sand to the sample cup under low-speed stirring conditions and stir at high speed. After stirring, place the washed quartz sand in an oven to dry, and then cool it to room temperature for later use.

[0007] S2. At room temperature, take a portion of tetrahydrofuran (THF) into a test cup, add a portion of hydrophobic and anaerobic material into the test cup and dissolve it completely. Then, under magnetic stirring, add a portion of silane coupling agent into the test cup and disperse it evenly.

[0008] S3. Stir the solution in the test cup using a mixer. Then, spray the solution in the test cup evenly onto the surface of the quartz sand in S1 using a spraying process. After that, put the sprayed quartz sand into an oven for curing. Remove it and cool it to room temperature to obtain the air suspension proppant for fracturing.

[0009] The invention is further characterized by:

[0010] The high-speed mixer in S1 is a model GJ-3S high-speed mixer.

[0011] The quartz sand in S1 has a mass of 50g to 350g and a size of 425μm to 212μm.

[0012] The stirring speed of S1 is 1500r / min to 3500r / min for low-speed stirring and 4500r / min to 10000r / min for high-speed stirring. The high-speed stirring time is 2min to 4min. The drying temperature is 90℃ to 110℃ and the drying time is 0.9h to 1.1h.

[0013] The hydrophobic and anaerobic material in S2 is one of polystyrene, polytetrafluoroethylene, polycarbonate, waterborne polyurethane, phenolic resin, or long-branched fluorosilicone resin.

[0014] The silane coupling agent in S2 is one of γ-aminopropyltriethoxysilane, γ-glycidoxypropyltrimethoxysilane, γ-methacryloyloxypropyltrimethoxysilane, or dimethyldiethoxysilane.

[0015] The mixer used in S3 is a model IKA6 mixer with a mixing speed of 100-500 r / min.

[0016] The spraying process in S3 involves using a hand-operated sprayer to uniformly spray the solution in the test cup onto the surface of the quartz sand in S1 under stirring conditions of 200r / min to 500r / min.

[0017] The curing temperature for S3 is 50℃~200℃, and the curing time is 5min~45min.

[0018] Another technical solution adopted in this invention is a fracturing air suspension proppant, which is prepared using the above-mentioned fracturing air suspension proppant preparation method. The fracturing air suspension proppant has a contact angle of 117.1°, a suspension ratio of not less than 95%, and a static suspension rate of not less than 93%.

[0019] The beneficial effects of this invention are:

[0020] The present invention provides an air-suspended proppant for fracturing and its preparation method. This method involves introducing silanol bonds through silane coupling modification on the proppant surface, and then using a chemical grafting method to coat a hydrophobic and gas-philic material onto the surface of quartz sand to obtain the air-suspended proppant for fracturing. The spraying preparation method is simple and effective, highly controllable, low-cost, and suitable for large-scale manufacturing and commercial production. The prepared air-suspended proppant for fracturing has a contact angle of 117.1°, excellent suspension ratio and static suspension rate, and good temperature resistance and chemical stability, meeting the requirements of the proppant industry. Attached Figure Description

[0021] Figure 1 This is a contact angle diagram of the air suspension proppant obtained in Example 3 of the present invention;

[0022] Figure 2 This is a distribution diagram of the air suspension proppant obtained in Example 5 of the present invention in slickwater;

[0023] Figure 3 This is a distribution diagram showing the effect of pH value on the contact angle of the air suspension proppant obtained in Example 5 of the present invention;

[0024] Figure 4 This is a distribution diagram showing the effect of pH value on the static suspension rate of the air suspension proppant obtained in Example 5 of the present invention;

[0025] Figure 5 This is a distribution diagram showing the effect of temperature on the contact angle of the air-suspended proppant obtained in Example 5 of the present invention;

[0026] Figure 6 This is a distribution diagram showing the effect of temperature on the static suspension rate of the air-suspension proppant obtained in Example 5 of the present invention. Detailed Implementation

[0027] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0028] Example 1

[0029] The preparation method of the air-suspended proppant for fracturing proposed in this embodiment includes the following steps:

[0030] S1. Add 500mL of deionized water (Grade I) to the sample cup of the high-speed stirrer, weigh a certain amount of quartz sand, add the certain amount of quartz sand to the sample cup under low-speed stirring conditions and stir at high speed. After stirring, place the washed quartz sand in an oven to dry, and then cool it to room temperature for later use.

[0031] The high-speed mixer in S1 is a model GJ-3S high-speed mixer.

[0032] The mass of quartz sand in S1 is 150g, and the size of the quartz sand is 425μm~212μm;

[0033] The stirring speed of S1 is 2000 r / min for low-speed stirring and 8000 r / min for high-speed stirring for 3 min; the drying temperature is 100℃ and the drying time is 1 h.

[0034] S2. At room temperature, take 100 mL of tetrahydrofuran (THF) into a test cup, add 0.5 g of hydrophobic and anaerobic material into the test cup and dissolve it completely. Then, under magnetic stirring, add 0.5 g of silane coupling agent into the test cup and disperse it evenly.

[0035] The hydrophobic and anaerobic material in S2 is a long-chain branched fluorosilicone resin (PR-C);

[0036] In S2, the silane coupling agent used is dimethyldiethoxysilane (C6H). 16 O2Si);

[0037] S3. Stir the solution in the test cup using a mixer. Spray 1g of the solution in the test cup onto the surface of 20g of quartz sand in S1 using a spraying process. Then, put the sprayed quartz sand into an oven for curing. Take it out and cool it to room temperature to obtain the air suspension proppant for fracturing.

[0038] The mixer used in S3 is a model IKA6 mixer with a mixing speed of 100-500 r / min.

[0039] In S3, the spraying process involves using a hand-operated sprayer to uniformly spray the solution in the test cup onto the surface of the quartz sand in S1 under a stirring condition of 300 r / min.

[0040] The curing temperature in S3 is 105℃, and the curing time is 20min;

[0041] After measurement, the contact angle of the air-suspended proppant for fracturing was found to be 84.7°, the suspension ratio was 84%, and the static suspension rate was 85%.

[0042] Example 2

[0043] The preparation method of the air-suspended proppant for fracturing proposed in this embodiment includes the following steps:

[0044] S1. Add 500mL of deionized water (Grade I) to the sample cup of the high-speed stirrer, weigh a certain amount of quartz sand, add the certain amount of quartz sand to the sample cup under low-speed stirring conditions and stir at high speed. After stirring, place the washed quartz sand in an oven to dry, and then cool it to room temperature for later use.

[0045] The high-speed mixer in S1 is a model GJ-3S high-speed mixer.

[0046] The mass of quartz sand in S1 is 150g, and the size of the quartz sand is 425μm~212μm;

[0047] The stirring speed of S1 is 2000 r / min for low-speed stirring and 8000 r / min for high-speed stirring for 3 min; the drying temperature is 100℃ and the drying time is 1 h.

[0048] S2. At room temperature, take 100 mL of tetrahydrofuran (THF) into a test cup, add 5 g of hydrophobic and anaerobic material into the test cup and dissolve it completely. Then, under magnetic stirring, add 5 g of silane coupling agent into the test cup and disperse it evenly.

[0049] The hydrophobic and anaerobic material in S2 is a long-chain branched fluorosilicone resin (PR-C);

[0050] In S2, the silane coupling agent used is dimethyldiethoxysilane (C6H). 16 O2Si);

[0051] S3. Stir the solution in the test cup using a mixer. Spray 1g of the solution in the test cup onto the surface of 20g of quartz sand in S1 using a spraying process. Then, put the sprayed quartz sand into an oven for curing. Take it out and cool it to room temperature to obtain the air suspension proppant for fracturing.

[0052] The mixer used in S3 is a model IKA6 mixer with a mixing speed of 100-500 r / min.

[0053] In S3, the spraying process involves using a hand-operated sprayer to uniformly spray the solution in the test cup onto the surface of the quartz sand in S1 under a stirring condition of 300 r / min.

[0054] The curing temperature in S3 is 105℃, and the curing time is 20min;

[0055] After measurement, the contact angle of the air-suspended proppant for fracturing was found to be 114.2°, the suspension ratio was 88%, and the static suspension rate was 91%.

[0056] Example 3

[0057] The preparation method of the air-suspended proppant for fracturing proposed in this embodiment includes the following steps:

[0058] S1. Add 500mL of deionized water (Grade I) to the sample cup of the high-speed stirrer, weigh a certain amount of quartz sand, add the certain amount of quartz sand to the sample cup under low-speed stirring conditions and stir at high speed. After stirring, place the washed quartz sand in an oven to dry, and then cool it to room temperature for later use.

[0059] The high-speed mixer in S1 is a model GJ-3S high-speed mixer.

[0060] The mass of quartz sand in S1 is 150g, and the size of the quartz sand is 425μm~212μm;

[0061] The stirring speed of S1 is 2000 r / min for low-speed stirring and 8000 r / min for high-speed stirring for 3 min; the drying temperature is 100℃ and the drying time is 1 h.

[0062] S2. At room temperature, take 100 mL of tetrahydrofuran (THF) into a test cup, add 8 g of hydrophobic and anaerobic material into the test cup and dissolve it completely. Then, under magnetic stirring, add 2 g of silane coupling agent into the test cup and disperse it evenly.

[0063] The hydrophobic and anaerobic material in S2 is a long-chain branched fluorosilicone resin (PR-C);

[0064] In S2, the silane coupling agent used is dimethyldiethoxysilane (C6H). 16 O2Si);

[0065] S3. Stir the solution in the test cup using a mixer. Spray 1g of the solution in the test cup onto the surface of 20g of quartz sand in S1 using a spraying process. Then, put the sprayed quartz sand into an oven for curing. Take it out and cool it to room temperature to obtain the air suspension proppant for fracturing.

[0066] The mixer used in S3 is a model IKA6 mixer with a mixing speed of 100-500 r / min.

[0067] In S3, the spraying process involves using a hand-operated sprayer to uniformly spray the solution in the test cup onto the surface of the quartz sand in S1 under a stirring condition of 300 r / min.

[0068] The curing temperature in S3 is 105℃, and the curing time is 20min;

[0069] like Figure 1 As shown, the contact angle of the air-suspended proppant used for fracturing was 118.6°, the suspension ratio was 93%, and the static suspension rate was 95% after measurement.

[0070] Example 4

[0071] The preparation method of the air-suspended proppant for fracturing proposed in this embodiment includes the following steps:

[0072] S1. Add 500mL of deionized water (Grade I) to the sample cup of the high-speed stirrer, weigh a certain amount of quartz sand, add the certain amount of quartz sand to the sample cup under low-speed stirring conditions and stir at high speed. After stirring, place the washed quartz sand in an oven to dry, and then cool it to room temperature for later use.

[0073] The high-speed mixer in S1 is a model GJ-3S high-speed mixer.

[0074] The mass of quartz sand in S1 is 150g, and the size of the quartz sand is 425μm~212μm;

[0075] The stirring speed of S1 is 2000 r / min for low-speed stirring and 8000 r / min for high-speed stirring for 3 min; the drying temperature is 100℃ and the drying time is 1 h.

[0076] S2. At room temperature, take 100 mL of tetrahydrofuran (THF) into a test cup, add 9 g of hydrophobic and anaerobic material into the test cup and dissolve it completely. Then, under magnetic stirring, add 1 g of silane coupling agent into the test cup and disperse it evenly.

[0077] The hydrophobic and anaerobic material in S2 is a long-chain branched fluorosilicone resin (PR-C);

[0078] In S2, the silane coupling agent used is dimethyldiethoxysilane (C6H). 16 O2Si);

[0079] S3. Stir the solution in the test cup using a mixer. Spray 1g of the solution in the test cup onto the surface of 20g of quartz sand in S1 using a spraying process. Then, put the sprayed quartz sand into an oven for curing. Take it out and cool it to room temperature to obtain the air suspension proppant for fracturing.

[0080] The mixer used in S3 is a model IKA6 mixer with a mixing speed of 100-500 r / min.

[0081] In S3, the spraying process involves using a hand-operated sprayer to uniformly spray the solution in the test cup onto the surface of the quartz sand in S1 under a stirring condition of 300 r / min.

[0082] The curing temperature in S3 is 105℃, and the curing time is 20min;

[0083] After measurement, the contact angle of the air-suspended proppant for fracturing was found to be 94.3°, the suspension ratio was 84%, and the static suspension rate was 88%.

[0084] Example 5

[0085] The preparation method of the air-suspended proppant for fracturing proposed in this embodiment includes the following steps:

[0086] S1. Add 500mL of deionized water (Grade I) to the sample cup of the high-speed stirrer, weigh a certain amount of quartz sand, add the certain amount of quartz sand to the sample cup under low-speed stirring conditions and stir at high speed. After stirring, place the washed quartz sand in an oven to dry, and then cool it to room temperature for later use.

[0087] The high-speed mixer in S1 is a model GJ-3S high-speed mixer.

[0088] The mass of quartz sand in S1 is 150g, and the size of the quartz sand is 425μm~212μm;

[0089] The stirring speed of S1 is 2000 r / min for low-speed stirring and 8000 r / min for high-speed stirring for 3 min; the drying temperature is 100℃ and the drying time is 1 h.

[0090] S2. At room temperature, take 100 mL of tetrahydrofuran (THF) into a test cup, add 8 g of hydrophobic and anaerobic material into the test cup and dissolve it completely. Then, under magnetic stirring, add 2 g of silane coupling agent into the test cup and disperse it evenly.

[0091] The hydrophobic and anaerobic material in S2 is a long-chain branched fluorosilicone resin (PR-C);

[0092] In S2, the silane coupling agent used is dimethyldiethoxysilane (C6H). 16 O2Si);

[0093] S3. Stir the solution in the test cup using a mixer. Then, spray 1g of the solution in the test cup evenly onto the surface of 35g of quartz sand in S1 using a spraying process. After that, put the sprayed quartz sand into an oven for curing. Take it out and cool it to room temperature to obtain the air suspension proppant for fracturing.

[0094] The mixer used in S3 is a model IKA6 mixer with a mixing speed of 100-500 r / min.

[0095] In S3, the spraying process involves using a hand-operated sprayer to uniformly spray the solution in the test cup onto the surface of the quartz sand in S1 under a stirring condition of 300 r / min.

[0096] The curing temperature in S3 is 105℃, and the curing time is 20min;

[0097] After measurement, the contact angle of the air-suspended proppant used for fracturing was found to be 117.1°, the suspension ratio was 90%, and the static suspension rate was 93%.

[0098] The prepared air-suspended proppant for fracturing was combined with slickwater. The distribution of the air-suspended proppant in the slickwater was as follows: Figure 2 As shown;

[0099] The effect of pH value on the contact angle of air-suspended proppant is shown in the following figure. Figure 3 As shown in the figure, the effect of pH value on the static suspension rate of the air-suspended proppant is distributed as follows. Figure 4 As shown in the figure, the distribution of the effect of temperature on the contact angle of the air-suspended proppant is as follows. Figure 5 As shown in the figure, the distribution of the effect of temperature on the static suspension rate of the air-suspension proppant is as follows. Figure 6 As shown.

[0100] Example 6

[0101] The preparation method of the air-suspended proppant for fracturing proposed in this embodiment includes the following steps:

[0102] S1. Add 500mL of deionized water (Grade I) to the sample cup of the high-speed stirrer, weigh a certain amount of quartz sand, add the certain amount of quartz sand to the sample cup under low-speed stirring conditions and stir at high speed. After stirring, place the washed quartz sand in an oven to dry, and then cool it to room temperature for later use.

[0103] The high-speed mixer in S1 is a model GJ-3S high-speed mixer.

[0104] The mass of quartz sand in S1 is 150g, and the size of the quartz sand is 425μm~212μm;

[0105] The stirring speed of S1 is 2000 r / min for low-speed stirring and 8000 r / min for high-speed stirring for 3 min; the drying temperature is 100℃ and the drying time is 1 h.

[0106] S2. At room temperature, take 100 mL of tetrahydrofuran (THF) into a test cup, add 8 g of hydrophobic and anaerobic material into the test cup and dissolve it completely. Then, under magnetic stirring, add 2 g of silane coupling agent into the test cup and disperse it evenly.

[0107] The hydrophobic and anaerobic material in S2 is a long-chain branched fluorosilicone resin (PR-C);

[0108] In S2, the silane coupling agent used is dimethyldiethoxysilane (C6H). 16 O2Si);

[0109] S3. Stir the solution in the test cup using a mixer. Then, spray 1g of the solution in the test cup evenly onto the surface of 45g of quartz sand in S1 using a spraying process. After that, put the sprayed quartz sand into an oven for curing. Take it out and cool it to room temperature to obtain the air suspension proppant for fracturing.

[0110] The mixer used in S3 is a model IKA6 mixer with a mixing speed of 100-500 r / min.

[0111] In S3, the spraying process involves using a hand-operated sprayer to uniformly spray the solution in the test cup onto the surface of the quartz sand in S1 under a stirring condition of 300 r / min.

[0112] The curing temperature in S3 is 105℃, and the curing time is 20min;

[0113] After measurement, the contact angle of the air-suspended proppant for fracturing was found to be 100.8°, the suspension ratio was 87%, and the static suspension rate was 89%.

[0114] Comparative Example 1

[0115] Measure 500 mL of deionized water (Grade I) into a sample cup using a high-speed stirrer. While stirring (2000 rpm), pour 150 g of quartz sand into the sample cup at a uniform speed and stir at 8000 rpm for 3 minutes. Place the washed quartz sand in a 100℃ oven to dry for 1 hour, then cool to room temperature for later use. Dissolve 8 g of PR-C in 100 mL of THF. Using a spraying process, under stirring at 300 rpm, uniformly spray 1 g of PR-C / THF solution onto the surface of 35 g of washed quartz sand. Place the sprayed quartz sand in a 105℃ oven to cure for 20 minutes, then remove and cool to room temperature to obtain the air suspension proppant for fracturing. Measurements showed that the contact angle of this material was 105.3°, the suspension ratio was 15%, and the static suspension rate was 10%.

[0116] Table 1 shows the examples, comparative examples, and contact angles, suspension ratios, and static suspension rates of the prepared air-suspended proppants for fracturing:

[0117] Table 1

[0118]

[0119] As can be seen from Table 1, Examples 1 to 6 achieved silane coupling (C6H) on the surface of the support. 16 O2Si) modification introduces silanol bonds, and long-chain branched fluorosilicone modified resin (PR-C) is grafted onto the surface of quartz sand to prepare an air-suspended proppant. Comparative Example 1, however, does not modify the quartz sand surface; PR-C is directly sprayed onto the quartz sand surface. Compared to Comparative Example 1, silane coupling (C6H) is performed on the proppant surface... 16O2Si) modification introduces silanol bonds. PR-C is then sprayed onto the modified quartz sand surface, chemically grafting with Si-OH to combine the two materials with significantly different properties. This unique "molecular bridge" effect greatly improves the interfacial interaction between the proppant and PR-C, thereby enhancing the adhesion of PR-C to the quartz sand surface. Consequently, it exhibits excellent suspension ratio and static suspension rate, meeting the requirements of the proppant industry. Figure 3 It can be seen that the prepared air-suspended proppant for fracturing has a good suspension ratio and static suspension rate.

Claims

1. A method for preparing an air-suspended proppant for fracturing, characterized in that, Includes the following steps: S1. Add deionized water to the sample cup of the high-speed stirrer, weigh a certain amount of quartz sand, add the certain amount of quartz sand to the sample cup under low-speed stirring conditions and stir at high speed. After stirring, place the washed quartz sand in an oven to dry, and then cool it to room temperature for later use. S2. At room temperature, take a portion of tetrahydrofuran (THF) into a test cup, add a portion of hydrophobic and anaerobic material into the test cup and dissolve it completely. Then, under magnetic stirring, add a portion of silane coupling agent into the test cup and disperse it evenly. S3. Stir the solution in the test cup using a mixer. Then, spray the solution in the test cup evenly onto the surface of the quartz sand in S1 using a spraying process. After that, put the sprayed quartz sand into an oven for curing. Remove it and cool it to room temperature to obtain the air suspension proppant for fracturing.

2. The method for preparing the air-suspended proppant for fracturing according to claim 1, characterized in that, The high-speed mixer described in S1 is a GJ-3S type high-speed mixer.

3. The method for preparing the air-suspended proppant for fracturing according to claim 1, characterized in that, The quartz sand in S1 has a mass of 50g to 350g and a size of 425μm to 212μm.

4. The method for preparing the air-suspended proppant for fracturing according to claim 1, characterized in that, The low-speed stirring speed in S1 is 1500 r / min to 3500 r / min; the high-speed stirring speed is 4500 r / min to 10000 r / min; the high-speed stirring time is 2 min to 4 min; the drying temperature is 90℃ to 110℃; and the drying time is 0.9 h to 1.1 h.

5. The method for preparing the air-suspended proppant for fracturing according to claim 1, characterized in that, The hydrophobic and anaerobic material described in S2 is one of polystyrene, polytetrafluoroethylene, polycarbonate, waterborne polyurethane, phenolic resin, or long-branched fluorosilicone resin.

6. The method for preparing the air-suspended proppant for fracturing according to claim 1, characterized in that, The silane coupling agent mentioned in S2 is one of γ-aminopropyltriethoxysilane, γ-glycidoxypropyltrimethoxysilane, γ-methacryloyloxypropyltrimethoxysilane, or dimethyldiethoxysilane.

7. The method for preparing the air-suspended proppant for fracturing according to claim 1, characterized in that, The mixer described in S3 is a model IKA6 mixer, and the mixing speed of the mixer is 100-500 r / min.

8. The method for preparing the air-suspended proppant for fracturing according to claim 1, characterized in that, The spraying process described in S3 involves using a hand-operated sprayer to uniformly spray the solution in the test cup onto the surface of the quartz sand in S1 under stirring conditions of 200r / min to 500r / min.

9. The method for preparing the air-suspended proppant for fracturing according to claim 1, characterized in that, The curing temperature described in S3 is 50℃~200℃, and the curing time is 5min~45min.

10. A fracturing air-suspension proppant, prepared using the preparation method of the fracturing air-suspension proppant according to any one of claims 1-9, characterized in that, The contact angle of the air-suspended proppant for fracturing is 117.1°, the suspension ratio of the air-suspended proppant for fracturing is not less than 95%, and the static suspension rate of the air-suspended proppant for fracturing is not less than 93%.

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