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Hydrophobic membrane laminating propping agent as well as preparation method and application thereof

A proppant, hydrophobic technology, applied in chemical instruments and methods, earth-moving drilling, production of fluids, etc., can solve the problems of reducing crude oil production and production efficiency, crude oil production and grade obstacles, etc., achieve good antioxidant capacity, increase the effect of strength

Active Publication Date: 2018-12-11
河南祥盛陶粒有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional film-coated proppant is coated with one or more layers of resin film on the matrix of proppant such as quartz sand and ceramsite sand, which has high strength and corrosion resistance, but oil and water can still penetrate a large amount, so that Greatly reduced the output and production efficiency of crude oil, which has caused great obstacles to the improvement of crude oil output and grade

Method used

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  • Hydrophobic membrane laminating propping agent as well as preparation method and application thereof
  • Hydrophobic membrane laminating propping agent as well as preparation method and application thereof
  • Hydrophobic membrane laminating propping agent as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] (1) Weigh 50 g of matrix particles with a particle size of 20-40 mesh and 3 g of silicone resin with a particle size of 20-40 mesh, add them to a resin sand mixer, heat to 250 ° C, melt and stir evenly, and obtain a mixture A;

[0039] (2) Add 0.25g of acrylic acid, 0.25g of acrylamide, 0.25g of alkyltrimethylammonium salt type cationic surfactant (with 10 carbon atoms), N,N-methylenebisacrylamide to mixture A 0.01g, methacryloxypropyltrimethoxysilane 0.01g, persulfate 2g, dibutyl phthalate 0.05g, zinc stearate 0.15g and alcohol solvent 50g; use magnesium hydroxide to adjust pH to 6.5, to obtain mixed solution B;

[0040] (3) Filter the mixed solution B after reacting at 60° C. for 2 h to obtain filtered particles and filtrate; spread the filtered particles on a fluidized bed, spray the filtrate on the filtered particles for 70 seconds, and Polymerize at ℃ for 1 hour, and after drying, a hydrophobic film-coated proppant is obtained.

Embodiment 2

[0042] (1) Weigh 50 g of matrix particles with a particle size of 20-40 mesh and 4 g of silicone resin with a particle size of 20-40 mesh and add them to a resin sand mixer, heat to 280 ° C, melt and stir evenly, and obtain a mixture A;

[0043] (2) Add 0.4g of acrylic acid, 0.4g of acrylamide, 1g of alkyltrimethylammonium salt cationic surfactant (20 carbon atoms), 0.03 of N,N-methylenebisacrylamide to mixture A g, methacryloxypropyltrimethoxysilane 0.025g, persulfate 2.5g, dibutyl phthalate 0.2g, zinc stearate 0.3g and alcohol solvent 50g; utilize magnesium hydroxide to adjust pH to 7.5, to obtain mixed solution B;

[0044] (3) Filter the mixed solution B after reacting at 70° C. for 4 h to obtain filtered particles and filtrate; spread the filtered particles on a fluidized bed, spray the filtrate on the filtered particles for 90 seconds, and Polymerize at ℃ for 2 hours, and after drying, a hydrophobic film-coated proppant is obtained.

Embodiment 3

[0046] (1) Weigh 50 g of matrix particles with a particle size of 20-40 mesh and 3.5 g of silicone resin with a particle size of 20-40 mesh and add them to a resin sand mixer, heat to 265 ° C, melt and stir evenly, and obtain a mixture A;

[0047] (2) Add 0.33g of acrylic acid, 0.33g of acrylamide, 0.75g of alkyltrimethylammonium salt type cationic surfactant (with 15 carbon atoms), N,N-methylenebisacrylamide to mixture A 0.02g, methacryloxypropyl trimethoxysilane 0.018g, persulfate 2.25g, dibutyl phthalate 0.25g, zinc stearate 0.23g and alcohol solvent 50g; use magnesium hydroxide Adjust the pH to 7.0 to obtain mixed solution B;

[0048] (3) Filter the mixed solution B after reacting at 65° C. for 3 h to obtain filtered particles and filtrate; spread the filtered particles on a fluidized bed, spray the filtrate on the filtered particles for 80 seconds, and Polymerize at ℃ for 1.5h, and after drying, a hydrophobic film-coated proppant is obtained.

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Abstract

The invention discloses a hydrophobic membrane laminating propping agent as well as a preparation method and application thereof. The hydrophobic membrane laminating propping agent can be used for sticking bubbles and has excellent flow guide capability and transporting capability, and good hydrophobic property, lipophilic property and oil-penetration and water-resisting properties; the oil production amount of crude oil is improved and petroleum is easy to exploit; the method is simple and easy to popularize, and is suitable for industrialization; the cost is low, the damage level to a stratum is relatively low and environment protection and sustainable development are facilitated.

Description

technical field [0001] The invention belongs to the technical field of oil and gas well fracturing and proppant production, and in particular relates to a proppant and its preparation method and application, in particular to a hydrophobic membrane-coated proppant and its preparation method and application. Background technique [0002] Petroleum fuels are typically extracted from subterranean reservoirs via boreholes, and currently, petroleum fuels are extracted from low permeability reservoirs by hydraulically fracturing formations such as rock masses with varying degrees of porosity and permeability. In the process of hydraulic fracturing, a large amount of petroleum proppant is mixed with fracturing fluid, and pumped into the underground oil reservoir at high pressure and high speed to fill the fractures produced by fracturing oil recovery, so that the crude oil around the oil well can pass through the petroleum proppant The voids enter the bottom of the oil well, thereby...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F292/00C08F283/12C08F220/06C08F220/56C08F222/38C08F230/08C08F2/44C08K5/12C08K5/098C09K8/80
CPCC08F2/44C08F283/12C08F292/00C08K5/098C08K5/12C09K8/805C08F230/08
Inventor 张建华
Owner 河南祥盛陶粒有限公司
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