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Epoxy resin fracturing propping agent and preparation method thereof

A technology of fracturing proppant and epoxy resin, which is applied in the direction of chemical instruments and methods, earthwork drilling, mining fluids, etc. It can solve the problems of high design cost and high production cost, and achieve strong crush resistance, small conveying resistance, The effect of broad application value

Pending Publication Date: 2020-12-08
CHINA BLUESTAR CHENGRAND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] This method overcomes the defects of the patent with the publication number CN105985767A, but the design cost of the fracturing proppant equipment is very high and the production cost is quite high.

Method used

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  • Epoxy resin fracturing propping agent and preparation method thereof
  • Epoxy resin fracturing propping agent and preparation method thereof
  • Epoxy resin fracturing propping agent and preparation method thereof

Examples

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Embodiment 1～ Embodiment 8

[0038] Examples 1 to 8 are eight implementations of the epoxy resin fracturing proppant of the present invention, and their corresponding product indicators.

[0039] As shown in Table 1 below:

[0040]

[0041]

[0042]

Embodiment 9

[0044] This embodiment discloses a preparation method of epoxy resin fracturing proppant.

[0045] Mix the epoxy resin, curing agent and accelerator according to the ratio of parts by weight of 100:100:5; mix until uniform to obtain a dispersed phase.

[0046] Among them, bisphenol A type epoxy resin E-51 is selected as the epoxy resin; the combination of imidazole and acid anhydride is selected as the curing agent; DMP-30 is selected as the accelerator.

[0047]Choose a silicone oil with a molecular weight of 470. Add the dispersed phase to the silicone oil for stirring, the ratio of the dispersed phase to the silicone oil is 1:5, control the stirring speed to 200 r / min, 250 r / min, or 300 r / min; after the dispersion is uniform, raise the temperature to 130-160 ℃, curing. An epoxy resin fracturing proppant with a particle size of 0.4-3.7 mm was obtained.

Embodiment 10

[0049] This embodiment discloses a preparation method of epoxy resin fracturing proppant.

[0050] Mix the epoxy resin, curing agent and accelerator according to the ratio of parts by weight of 100:100:5; mix until uniform to obtain a dispersed phase.

[0051] Among them, the epoxy resin is selected from the combination of bisphenol A epoxy resin E-44 and bisphenol A epoxy resin E-20; the curing agent is selected from dicyandiamide; the accelerator is selected from phenyldimethylurea and 2,4 toluene Combination of bisdimethylurea.

[0052] Choose a silicone oil with a molecular weight of 1000. Add the dispersed phase to the silicone oil for stirring, the ratio of the dispersed phase to the silicone oil is 1:10, control the stirring speed to 100 r / min, 150 r / min, or 200 r / min; after the dispersion is uniform, raise the temperature to 130-160 ℃, curing. An epoxy resin fracturing proppant with a particle size of 0.3-2.3 mm was obtained.

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Abstract

The invention discloses an epoxy resin fracturing propping agent and a preparation method thereof, and belongs to the technical field of oil and gas exploitation. The preparation method comprises thefollowing steps: uniformly mixing epoxy resin, a curing agent and an accelerant according to the weight part ratio of 100: (3-120): (0-10) to obtain a dispersed phase; selecting one or a combination of more than two of silicone oil with the molecular weight of 400-500,000 as a continuous phase; adding the dispersed phase into the continuous phase, stirring, and controlling the stirring speed to be50-300 r / min and the temperature of the silicone oil medium to be 70-90 DEG C; and uniformly dispersing, heating to 130-160 DEG C, and curing to obtain the epoxy resin fracturing propping agent. Theepoxy resin fracturing propping agent meets the following indexes: the density is 1.0-1.1 g / cm <3>, the roundness is greater than or equal to 0.9, the sphericity is greater than or equal to 0.9, the crushing resistance is less than or equal to 3%, the acid solubility is less than or equal to 0.2%, and the size distribution range is 100-5000 [mu]m.

Description

technical field [0001] The invention relates to an epoxy resin fracturing proppant and a preparation method thereof, belonging to the technical field of petroleum and natural gas exploitation. Background technique [0002] With the rapid development of my country's national economy, the consumption of petroleum is increasing year by year. At present, the shortage of oil resources and the low extraction rate have caused waste, and the environmental pollution problems in the process of oil extraction have caused the cost of extraction to increase year by year. [0003] Fracturing technology is the main measure to increase oil well production. In the process of oil exploitation, after high closure pressure and low permeability ore deposits undergo fracturing treatment, the oil and gas rock formations are cracked, and the fracturing proppant enters the formation along with the high-pressure solution to fill in the fractures, which plays a role in supporting the fractures from c...

Claims

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Application Information

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IPC IPC(8): C09K8/80
CPCC09K8/80
Inventor 王洪李晓娟王峰黄逸舟周建文
Owner CHINA BLUESTAR CHENGRAND CO LTD
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