Yield-increasing organic alcohol suspension resistance-reducing agent capable of rapidly discharging water and preventing emulsification during oil stripping and preparation method thereof

Abstract

The invention relates to the technical field of production increase of low-permeability oil and gas fields, and particularly provides an organic alcohol suspension resistance reducing agent for production increase and capable of quickly discharging water and preventing emulsification during oil stripping and a preparation method. The invention aims to solve the problems of quick water discharge and oil stripping emulsification prevention in the technical field of low-permeability oil and gas field yield increase. The resistance reducing agent comprises polyacrylamide, polymethacrylamide, an organic alcohol solvent, nano silicon dioxide, a silane coupling agent, a zwitterionic fluorocarbon surfactant and an organic thixotropic agent. The preparation method comprises the following steps: preparing intermediates A1 and B1, and mixing to obtain the final product. The problem of blockage of reservoir pores in fracturing operation is solved, the flowback rate is increased, and meanwhile, crude oil emulsification is avoided, so that the oil extraction rate is increased, and the corrosion of gathering and transportation pipelines is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of increasing production in low-permeability oil and gas fields, and in particular to an organic alcohol suspension drag reducing agent for increasing production for rapid water drainage and oil stripping and anti-emulsification, and a preparation method thereof. Background Art

[0002] In the development process of tight rock, shale and coal rock, the main factor affecting production is the permeability of the pores inside the oil and gas reservoir. Therefore, the return rate of the working fluid after fracturing and the discharge of the available oil and gas in the reservoir are the key to increasing and stabilizing the production of oil and gas wells in the later stage.

[0003] During the fracturing operation, the pumping pressure pushes the fracturing fluid into the rock cracks. When the operation is completed, once the pressure is reduced, the fracturing fluid in the underground rock cracks will be affected by the reverse seepage of the formation, and part of the fracturing fluid will flow back to the wellhead to form fracturing flowback fluid. The flowback fluid will remain in the reservoir, causing problems such as hydration expansion and water lock reaction of clay minerals, further causing blockage of the oil and gas wellbore permeability channel, and affecting the subsequent drainage and production. Therefore, after the fracturing is completed, it is necessary to return all the fracturing fluid from the reservoir to the ground as much as possible to avoid damage to the formation.

[0004] The mainstream fracturing fluid systems currently on the market all contain oil phase components. When the oil phase of the fracturing fluid enters the reservoir, due to the difference in density and fluidity between the oil and water phases, some fluids will be retained in the pores of tight rock, shale and coal reservoirs, causing pore blockage, reducing reservoir permeability and affecting production. (For example, in patent ZL201510143592.7, Yangtze University uses a high-efficiency, fast-dissolving, low-friction slickwater fracturing fluid system that does not contain an oil phase, retaining the original characteristics of high-efficiency, fast-dissolving, and high-efficiency drag reduction of the drag reducer. It can achieve a drag reduction efficiency of 70% when used in hydraulic fracturing; at the same time, the introduction of hydrophobic groups reduces the affinity between the drag reducer molecules and between the drag reducer and the reservoir rock, improves the drainage and reservoir protection performance after the hydraulic fracturing process, and reduces the risk of oil phase clogging the reservoir.) For oil wells, while increasing the flowback rate, additional crude oil imbibition agents or extraction agents will be added to the fracturing fluid to promote the separation of crude oil and rock through emulsification with crude oil, thereby achieving the purpose of increasing production. (For example, in patent CN117402603A, PetroChina Co., Ltd. adds imbibition agents and other agents to the base fluid prepared with a thickener to form an imbibition replacement function production-increasing fracturing fluid system, which has the advantages of improving crude oil recovery, realizing the recycling and reuse of fracturing fluid flowback fluid, reducing the viscosity of crude oil after emulsification, and increasing production.) However, the emulsification of crude oil and fracturing fluid will also increase the viscosity of the bottom hole fluid, increase the friction resistance of the liquid between the cracks, and if it is not well controlled, it will lead to increased oil production pressure and decreased production. During the oil production stage, water-containing emulsified crude oil will have difficulty breaking the emulsion due to the increased fluidity resistance of the crude oil emulsion, which will increase the load on the sucker rod, increase the risk of sucker rod breakage, and increase the back pressure of the downstream pipeline, leading to pipeline blockage. In addition, water-containing crude oil will corrode metal objects such as pipelines, storage tanks and pumps during pipeline transportation, and scale on the surface of these metal equipment, shortening the service life of the equipment. Summary of the invention

[0005] The purpose of the present invention is to provide an organic alcohol suspension drag reducing agent for increasing production with fast water discharge and oil stripping and anti-emulsification and a preparation method thereof, which not only has the drag reducing and sand carrying characteristics of conventional fracturing fluids, but also realizes the rapid return of shale oil and gas through double dispersion, reduces the blockage damage caused by hydration expansion of clay minerals and retention of return fluid in the reservoir, and the fracturing fluid itself does not contain oil. The crude oil production increasing agent used in the system will not cause crude oil emulsification and affect the later production and gathering while improving the crude oil recovery rate.

[0006] In order to achieve the above purpose, the present invention adopts the following technical means: The invention provides an organic alcohol suspension drag reducing agent for increasing production, which can promote rapid water drainage and oil stripping and prevent emulsification. The organic alcohol suspension drag reducing agent comprises, by weight, 20-40 parts of polyacrylamide, 10-20 parts of polymethacrylamide, 20-80 parts of organic alcohol solvent, 1-6 parts of nano silicon dioxide, 2-10 parts of silane coupling agent, 2-5 parts of zwitterionic fluorocarbon surfactant and 1-6 parts of organic thixotropic agent.

[0007] In the above technical solution, the molecular weight of the polyacrylamide is greater than 10 million, and the molecular weight of the polymethacrylamide is greater than 6 million.

[0008] In the above technical solution, the organic alcohol solvent is one or more of polyethylene glycol, triethylene glycol, polypropylene glycol, propylene glycol, diethylene glycol monobutyl ether, diethylene glycol monomethyl ether, and triethylene glycol monobutyl ether.

[0009] In the above technical scheme, the silane coupling agent is one or more of γ-aminopropyltriethoxysilane, γ-(β-aminoethyl)aminopropyltrimethoxysilane, anilinemethyltrimethoxysilane, vinyltriethoxysilane, and γ-glycidyloxypropyltrimethoxysilane, and the zwitterionic fluorocarbon surfactant is one or more of perfluorooctyl amphoteric phosphate, perfluorooctyl amphoteric betaine, and perfluorodecyl amphoteric betaine.

[0010] In the above technical solution, the organic thixotropic agent is one or more of polyamide wax, polyurea, polyurethane, starch ether and cellulose ether.

[0011] The present invention also provides a method for preparing an organic alcohol suspension drag reducing agent for increasing production that promotes rapid water drainage and oil stripping and prevents emulsification, comprising the following steps: Step A1: weigh 10-40 parts of an organic alcohol solvent and an organic thixotropic agent, add them into a reaction vessel, heat to 40±5°C under stirring, stir for 0.5-1h, then add polyacrylamide and polymethacrylamide, and stir at a constant temperature of 40±5°C for 1-2h to obtain intermediate A1; Step B1: Stir 10-40 parts of an organic alcohol solvent and 1-6 parts of nano-silica at room temperature for 0.5-1h, add 2-10 parts of a silane coupling agent and 2-5 parts of a zwitterionic fluorocarbon surfactant, stir at room temperature for 0.5-1h, and let stand for 1h-1.5h to obtain an intermediate B1; Step C1: Add the prepared intermediate B1 to the intermediate A1, and stir for 1-2 hours to obtain a finished product of an organic alcohol suspension drag reducing agent for increasing production that promotes rapid water discharge and oil stripping and prevents emulsification.

[0012] In the above technical solution, the stirring speed in step A1 is 1000-2000r / min.

[0013] In the above technical solution, the stirring speed in step B1 and step C1 is 400-800 r / min.

[0014] Because the present invention adopts the above technical means, it has the following beneficial effects: 1. In the technical solution of the present invention, nano-silica and silane coupling agent are added, and the surface of silica is treated with silane coupling agent to introduce lipophilic functional groups; on the one hand, the nano-size of silica is used to enter the reservoir pores and contact with crude oil; on the other hand, the lipophilic functional groups grafted with silica contain nitrogen and have benzene rings, which can be combined with the colloid, asphaltene and saturated components of crude oil through the principle of similar compatibility. Later, with the backflow of fracturing fluid, silica can carry crude oil out, thereby improving oil recovery; because this method does not act with crude oil in the form of micelle emulsification, it will not cause crude oil emulsification, thereby reducing the blockage caused by the excessive viscosity of the emulsion during the backflow process and the corrosion problem in the gathering and transportation pipeline, and also avoiding the problem of demulsification in the later stage.

[0015] 2. In the technical solution of the present invention, a zwitterionic fluorocarbon surfactant is used, wherein the zwitterionic fluorocarbon active agent is positively charged under the acidic conditions of the fracturing fluid, and is adsorbed by negatively charged rocks through electrostatic action, so that the rocks are adjusted from weakly hydrophilic to neutrally wetting, and the capillary resistance encountered by the return fluid when passing through the pores is reduced, the liquid resistance effect is reduced, and the return rate of the fracturing fluid is improved; organic alcohols and alcohol ether solvents, by virtue of their small molecular size and multi-hydroxy structure, have strong permeability, and while acting with the hydroxyl groups on the rock surface, enhance the depth and time of the treatment of the rock surface by the fluorocarbon surfactant, thereby achieving long-term high efficiency; in addition, the fluorocarbon surfactant has a small amount of adsorption effect on the rock surface, which can reduce the hydration expansion of clay minerals after contact with water, and avoid clogging of the pores; the oil-repellent characteristics of the fluorocarbon surfactant, and its adsorption on the rock surface, can further reduce the secondary adsorption caused by the return of crude oil to the near-wellhead or wellbore after dispersion, which can cause the oil flow channel to be blocked, the oil production to decay quickly, and the stable production effect to be poor.

[0016] 3. In the technical solution of the present invention, on the one hand, the synergistic effect of the reagents is reflected to achieve rapid flowback and avoid blockage of the diversion channel; on the other hand, the non-emulsified oil production method is used to avoid the high fluid viscosity caused by crude oil emulsification, which causes liquid resistance problems, and avoids the corrosion of water-containing crude oil to the gathering and transportation pipelines; at the same time, the treatment of the rock surface solves the problem of secondary adsorption of crude oil near the wellhead or wellbore after it is produced from the fracture wall, which causes blockage of the oil flow channel, thereby achieving the effect of increasing and stabilizing production. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 To prepare a simple flow chart; Figure 2 This is a table of index measurements for Examples 1-6. DETAILED DESCRIPTION

[0018] The following is a detailed description of the embodiments of the present invention. Although the present invention will be described and illustrated in conjunction with some specific embodiments, it should be noted that the present invention is not limited to these embodiments. On the contrary, modifications or equivalent substitutions made to the present invention should all be included in the scope of the claims of the present invention.

[0019] In addition, in order to better illustrate the present invention, numerous specific details are given in the following specific embodiments. It will be understood by those skilled in the art that the present invention can also be implemented without these specific details.

[0020] In view of the problems raised by the background technology, the present invention develops an organic alcohol suspension drag reducing agent for increasing production with rapid water discharge and oil stripping and anti-emulsification, and the prepared fracturing fluid needs to have the following functions: 1. Allow fracturing flowback fluid to be discharged quickly to reduce blockage damage to the reservoir; 2. While the crude oil is being dispersed and stripped, the risk of subsequent drainage caused by crude oil emulsification is reduced; 3. The system does not contain oil phase, which can also avoid the problem of pore channel blockage caused by the incompatibility of oil phase and water phase.

[0021] The development of an organic alcohol suspension drag-reducing agent for rapid flowback of reservoir water and anti-emulsification of oil phase stripping is a key means to solve the above problems.

[0022] In response to the existing production increase requirements and in combination with the functions that fracturing fluids need to meet, the invention develops a suspended drag reducer that promotes rapid water drainage, with the technical indicator being that the surface tension after preparation must be less than 23; the crude oil is stripped and demulsified on the rock surface, with the technical indicator being that the emulsification tendency is no emulsification, the oil washing rate is greater than 60%, the crude oil interfacial tension is less than 2, the wetting angle is 70-100, and it is neutrally wetting, which can promote crude oil stripping and prevent secondary adsorption.

[0023] Furthermore, in one embodiment, an organic alcohol suspension drag reducing agent for increasing production with fast water drainage and oil stripping and anti-emulsification comprises, by weight, 20-40 parts of polyacrylamide, 10-20 parts of polymethacrylamide, 20-80 parts of organic alcohol, 1-6 parts of nano-silicon dioxide, 2-10 parts of silane coupling agent, 2-5 parts of zwitterionic fluorocarbon surfactant, and 1-6 parts of organic thixotropic agent.

[0024] Furthermore, the molecular weight of the polyacrylamide is greater than 10 million, and the molecular weight of the polymethacrylamide is greater than 6 million.

[0025] Furthermore, the organic alcohol is one or more of polyethylene glycol, triethylene glycol, polypropylene glycol, propylene glycol, diethylene glycol monobutyl ether, diethylene glycol monomethyl ether, and triethylene glycol monobutyl ether.

[0026] Furthermore, the silane coupling agent is one or more of γ-aminopropyltriethoxysilane, γ-(β-aminoethyl)aminopropyltrimethoxysilane, anilinemethyltrimethoxysilane, vinyltriethoxysilane, and γ-glycidyloxypropyltrimethoxysilane, and the zwitterionic fluorocarbon surfactant is one or more of perfluorooctyl amphoteric phosphate, perfluorooctyl amphoteric betaine, and perfluorodecyl amphoteric betaine.

[0027] Furthermore, the organic thixotropic agent is one or more of polyamide wax, polyurea, polyurethane, and cellulose ether.

[0028] A method for preparing an organic alcohol suspension drag reducing agent for increasing production with fast water drainage and oil stripping and anti-emulsification, comprising the following steps: Step A1: 10-40 parts of organic alcohol and 1-6 parts of organic thixotropic agent are weighed and added into a reaction vessel, heated to 40±5°C under stirring, stirred for 0.5-1h, then 20-40 parts of polyacrylamide and 10-20 parts of polymethacrylamide are added, and stirred at a constant temperature of 40±5°C for 1-2h to obtain intermediate A1; Step B1: by weight, 10-40 parts of organic alcohol and 1-6 parts of nano-silicon dioxide are stirred at room temperature for 0.5-1h, 2-10 parts of silane coupling agent and 2-5 parts of zwitterionic fluorocarbon surfactant are added, stirred at room temperature for 0.5-1h, and allowed to stand for 1h-1.5h to obtain intermediate B1; Step C1: Add the prepared intermediate B1 to the intermediate A1 by weight, and stir for 1-2 hours to obtain a finished product of an organic alcohol suspension drag reducing agent for increasing production with fast water discharge and oil stripping and anti-emulsification.

[0029] Furthermore, in the step A1, the stirring speed is 1000-2000 r / min.

[0030] Furthermore, in the preparation steps of B1 and C1, the stirring speed is 400-800 r / min.

[0031] Example Experiment: The experiment of the embodiment aims to obtain experimental test data of the technical solution of the present invention by conducting specific experiments and index evaluation on the technical solution of the present invention.

[0032] The examples are based on the implementation methods of the above examples, and specific operable experimental parameters are given. Six examples are set up, and the differences among the six examples are in the differences in the compatible components and raw materials. The experimental parameters and the experimental group component formulas will be specifically described below.

[0033] Formula: The six embodiments all include polyacrylamide, polymethacrylamide, organic alcohol, nano-silicon dioxide, silane coupling agent, zwitterionic fluorocarbon surfactant, and organic thixotropic agent.

[0034] Embodiment 1: Raw materials preparation: Polyacrylamide: 30 parts (molecular weight greater than 10 million); Polymethacrylamide: 15 parts (molecular weight greater than 6 million); Diethylene glycol monomethyl ether: 65 parts; Nano silicon dioxide: 3 parts; γ-aminopropyltriethoxysilane: 6 parts; Perfluorooctyl amphoteric betaine: 2 parts; Polyamide wax anti-settling agent: 4 parts.

[0035] Preparation steps: Step A1: By weight, 65 parts of diethylene glycol monomethyl ether and 4 parts of polyamide wax anti-settling agent were weighed and added into a reaction container; Heat to 40±5℃ under stirring condition, control the stirring speed at 1000-2000r / min, and stir for 0.5-1 hour; Then 30 parts of polyacrylamide and 15 parts of polymethacrylamide were added.

[0036] The reaction mixture was stirred at a constant temperature of 40±5°C for 1-2 hours to obtain intermediate A1.

[0037] Step B1: By weight, 65 parts of diethylene glycol monomethyl ether and 3 parts of nano-silicon dioxide were stirred at room temperature for 0.5-1 hour, and the stirring speed was controlled at 400-800 r / min; Add 6 parts of γ-aminopropyltriethoxysilane and 2 parts of perfluorooctylamphobetaine; The mixture was stirred at room temperature for 0.5-1 hour, and then allowed to stand for 1-1.5 hours to obtain intermediate B1.

[0038] Step C1: The prepared intermediate B1 was gradually added to the intermediate A1 according to weight.

[0039] The stirring speed is controlled at 400-800r / min and stirring is carried out for 1-2 hours.

[0040] Finally, a finished product of an organic alcohol suspension drag reducing agent for increasing production with fast water discharge and oil stripping and anti-emulsification is obtained.

[0041] Embodiment 2: On the basis of Example 1, other conditions remain unchanged, and 6 parts of γ-aminopropyltriethoxysilane are replaced by 6 parts of γ-(β-aminoethyl)aminopropyltrimethoxysilane.

[0042] Embodiment 3: On the basis of Example 1, other conditions remain unchanged, 65 parts of diethylene glycol monomethyl ether are replaced by 65 parts of propylene glycol, and 6 parts of γ-aminopropyltriethoxysilane are replaced by 6 parts of anilinemethyltrimethoxysilane.

[0043] Embodiment 4: On the basis of Example 1, other conditions remained unchanged, and 6 parts of γ-aminopropyltriethoxysilane were replaced by 6 parts of anilinemethyltrimethoxysilane.

[0044] Embodiment 5: On the basis of Example 1, other conditions remain unchanged, 65 parts of diethylene glycol monomethyl ether are replaced by 65 parts of propylene glycol, and 6 parts of aniline methyl trimethoxy silane are replaced by 6 parts of γ-aminopropyl triethoxy silane.

[0045] Embodiment 6: On the basis of Example 1, other conditions remain unchanged, 65 parts of diethylene glycol monomethyl ether are replaced by 65 parts of propylene glycol, 6 parts of γ-aminopropyltriethoxysilane are replaced by 6 parts of anilinemethyltrimethoxysilane, and 4 parts of polyamide wax anti-settling agent are replaced by 4 parts of polyurethane thickener.

[0046] Embodiment 7: On the basis of Example 1, other conditions remained unchanged, and 30 parts of polyacrylamide were replaced by 20 parts of polyacrylamide.

[0047] Embodiment 8: On the basis of Example 1, other conditions remained unchanged, and 30 parts of polyacrylamide were replaced by 40 parts of polyacrylamide.

[0048] Detection: 1) Sample static stability Test method: Place the drag reducing agent sample at a constant temperature of 25°C for 90 days, and regularly observe and record the appearance changes of the drag reducing agent sample during this period.

[0049] 2) Sample bulk viscosity Test method: Take 500 ml of drag reducing agent sample and use a six-speed rotary viscometer to measure the sample viscosity.

[0050] 3) Evaluation of water solubility of sample centrifuge Test method: 3.1) Extraction of upper centrifuge liquid Take a 100mL centrifuge tube, add 90mL of resistance reducing agent, place it in a centrifuge, centrifuge at 4000r / min for 1h, take the upper clear liquid for later use. The amount of clear liquid should be greater than 20mL. If the amount is insufficient, repeat the extraction.

[0051] 3.2) Solubility determination Measure 10g of deionized water and place it in a 25mL colorimetric tube. Use a pipette to transfer 10mL of the supernatant extracted from the upper centrifuge liquid and add it to the colorimetric tube. Cover the tube with a stopper and shake it up and down manually for 5 times. Let it stand for 1 hour to observe whether it is miscible with water and whether there is emulsification or stratification (bubbles are not used as a criterion); 4) Determination of emulsification tendency of 0.2% clear water degelling liquid and kerosene, determination method: 4.1) Preparation of gel breaking solution Measure 500mL of deionized water and pour it into a beaker. Stir with an electric stirrer at a speed of 650r / min±30r / min. Add 1mL of drag reducing agent and stir for 30s. Add 0.5mL of degumming agent and stir continuously for 3min. Transfer the prepared liquid into a sealed container and place it in a constant temperature water bath at 90℃. The degumming time shall be implemented in accordance with the provisions of 7.9.1 of SY / T 6376-2008.

[0052] 4.2) Kerosene emulsification tendency According to GB / T7305-87 petroleum and synthetic liquid demulsification performance test method, take 40 ml of kerosene and degelling liquid respectively, place them in a 50 ℃ constant temperature bath for 15 minutes, stir at 600r / min for 5 minutes, let it stand, and observe and record the appearance of the mixed liquid.

[0053] 5. Determination of emulsification tendency of 0.2% water degelling liquid and crude oil Test method: prepare 0.2% degelling liquid, according to GB / T7305-87 petroleum and synthetic liquid demulsification performance test method, take 40 ml of crude oil and degelling liquid respectively, place in 50 ℃ constant temperature bath for 15 minutes, stir at 600r / min for 5 minutes, let it stand, and observe and record the appearance of the mixed liquid.

[0054] 6. Determination of oil washing rate of 0.2% clear water gel breaking liquid Test method: Prepare 0.2% gel breaking solution and test the oil washing rate according to Q / SH 1020 1518-2006 Section 4.7.

[0055] 7. Determination of interfacial tension of crude oil with 0.2% water gel breaking liquid Test method: Prepare 0.2% gel-breaking solution, and test and calculate the interfacial tension according to GB / T 6541-1986, No. 5 and 6.

[0056] 8. Determination of wetting angle of 0.2% clear water gel breaking liquid Test method: Prepare 0.2% gel breaking solution, test and calculate the wetting angle according to GB / T 24368-2009, No. 10.

[0057] 9. Determination of surface tension of 0.2% clear water gel breaking liquid Test method: Prepare 0.2% gel breaking solution, test and calculate the surface tension according to GB / T 22237-2008 Section 7.3.

[0058] Conclusion: The above examples 1-8 have been tested for a series of indicators, as shown in Figure 2 As shown in the table, test examples 1-8 all meet the requirements and show good comprehensive performance indicators.

[0059] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An organic alcohol suspension drag reducing agent for increasing production with fast water discharge and oil stripping and anti-emulsification, characterized in that: Calculated by weight, it includes 20-40 parts of polyacrylamide, 10-20 parts of polymethacrylamide, 20-80 parts of organic alcohol solvent, 1-6 parts of nano silicon dioxide, 2-10 parts of silane coupling agent, 2-5 parts of zwitterionic fluorocarbon surfactant and 1-6 parts of organic thixotropic agent.

2. The organic alcohol suspension drag reducing agent for increasing production with fast water discharge and oil stripping and anti-emulsification according to claim 1, characterized in that: The molecular weight of the polyacrylamide is greater than 10 million, and the molecular weight of the polymethacrylamide is greater than 6 million.

3. The organic alcohol suspension drag reducing agent for increasing production with fast water discharge and oil stripping and anti-emulsification according to claim 1, characterized in that: The organic alcohol solvent is one or more of polyethylene glycol, triethylene glycol, polypropylene glycol, propylene glycol, diethylene glycol monobutyl ether, diethylene glycol monomethyl ether, and triethylene glycol monobutyl ether.

4. The organic alcohol suspension drag reducing agent for increasing production with fast water discharge and oil stripping and anti-emulsification according to claim 1, characterized in that: The silane coupling agent is one or more of γ-aminopropyltriethoxysilane, γ-(β-aminoethyl)aminopropyltrimethoxysilane, anilinemethyltrimethoxysilane, vinyltriethoxysilane, and γ-glycidyloxypropyltrimethoxysilane, and the zwitterionic fluorocarbon surfactant is one or more of perfluorooctyl amphoteric phosphate, perfluorooctyl amphoteric betaine, and perfluorodecyl amphoteric betaine.

5. The organic alcohol suspension drag reducing agent for increasing production with fast water discharge and oil stripping and anti-emulsification according to claim 1, characterized in that: The organic thixotropic agent is one or more of polyamide wax, polyurea, polyurethane, starch ether and cellulose ether.

6. A method for preparing an organic alcohol suspension drag reducing agent for increasing production with rapid water drainage and oil stripping and anti-emulsification according to any one of claims 1 to 5, characterized in that: The steps include: Step A1: weigh 10-40 parts of an organic alcohol solvent and an organic thixotropic agent, add them into a reaction vessel, heat to 40±5°C under stirring, stir for 0.5-1h, then add polyacrylamide and polymethacrylamide, and stir at a constant temperature of 40±5°C for 1-2h to obtain intermediate A1; Step B1: Stir 10-40 parts of an organic alcohol solvent and 1-6 parts of nano-silica at room temperature for 0.5-1h, add 2-10 parts of a silane coupling agent and 2-5 parts of a zwitterionic fluorocarbon surfactant, stir at room temperature for 0.5-1h, and let stand for 1h-1.5h to obtain an intermediate B1; Step C1: Add the prepared intermediate B1 to the intermediate A1, and stir for 1-2 hours to obtain a finished product of an organic alcohol suspension drag reducing agent for increasing production that promotes rapid water discharge and oil stripping and prevents emulsification.

7. The method for preparing a production-increasing organic alcohol suspension drag-reducing agent capable of rapid water drainage and oil stripping and anti-emulsification according to claim 6, characterized in that: The stirring speed in step A1 is 1000-2000 r / min.

8. The method for preparing an organic alcohol suspension drag reducing agent for increasing production with fast water discharge and oil stripping and anti-emulsification according to claim 6, characterized in that: The stirring speed in step B1 and step C1 is 400-800 r / min.

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