Furan resin material based on multi-arm cross-linking agent and starch nanocrystal modification and preparation method and application thereof

A technology of starch nanocrystals and furan resin, which is applied in the direction of chemical instruments and methods, drilling compositions, etc., can solve the problems of low corrosion rate, acid fluid damage failure, etc., achieve high strength, increase cross-linked network density, Effect of improving heat resistance

Active Publication Date: 2020-05-26
汉中聚智达远环能科技有限公司
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Patent CN105602536B provides a non-acid-soluble high-strength channeling and plugging material and its preparation method. The plugging material has the characteristics of high strength and strong acid resistance. Hydrochloric acid, nitric acid and other acidic media commonly used in oil and water well acidification and plugging removal measures have a low corrosion rate and strong acid resistance, which solves the technical problem that the sealing and leakage plugging parts are easily damaged by acidic fluid during oil and water well acidizing operations.

Method used

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  • Furan resin material based on multi-arm cross-linking agent and starch nanocrystal modification and preparation method and application thereof
  • Furan resin material based on multi-arm cross-linking agent and starch nanocrystal modification and preparation method and application thereof
  • Furan resin material based on multi-arm cross-linking agent and starch nanocrystal modification and preparation method and application thereof

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Experimental program
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Effect test

Embodiment 1

[0032] Embodiment 1 is the furan resin material that contains starch nanocrystal modification, comprises following component, and each component is respectively according to weight part:

[0033] 90 parts by weight of urea-formaldehyde furan resin;

[0034] 10 parts by weight of toluenesulfonic acid;

[0035] 2 parts by weight of starch nanocrystals;

[0036] The preparation process of this kind of furan resin material based on multi-arm crosslinking agent and starch nanocrystal modification is as follows:

[0037] (1) urea-formaldehyde furan resin is mixed with starch nanocrystals and stirred evenly;

[0038] (2) add toluenesulfonic acid, stir;

[0039] (3) Seal the material, place it in an oven with a temperature of 70° C., and react for 8 hours to obtain a furan resin material modified with high-strength starch nanocrystals.

[0040] Let the mixed material after stirring evenly stand for a period of time (no air bubbles are required), then pour it into a compression mol...

Embodiment 2

[0042] Embodiment 2 is the furan resin material containing multi-arm crosslinking agent modification, comprises following components, and each component is respectively according to weight part:

[0043] 85 parts by weight of urea-formaldehyde furan resin;

[0044] 15 parts by weight of toluenesulfonic acid;

[0045] 2 parts by weight of tetrakis (3-mercaptopropionic acid) pentaerythritol ester;

[0046] The preparation process of the furan resin material based on multi-arm crosslinking agent and starch nanocrystal modification includes:

[0047] (1) urea-formaldehyde furan resin is mixed with tetrakis (3-mercaptopropionic acid) pentaerythritol ester, stirred evenly;

[0048] (2) add toluenesulfonic acid, stir;

[0049] (3) Seal the material, place it in an oven at a temperature of 70° C., and react for 6 hours to obtain a high-strength multi-arm crosslinking agent-modified furan resin material.

[0050] The compression sample preparation process and testing process are al...

Embodiment 3

[0052] Embodiment 3 is the furan resin material containing multi-arm cross-linking agent and starch nanocrystal modification, comprises following components, and each component is respectively according to weight part:

[0053]

[0054] The preparation process of this kind of furan resin material based on multi-arm crosslinking agent and starch nanocrystal modification is as follows:

[0055] (1) urea-formaldehyde furan resin is mixed with tetrakis (3-mercaptopropionic acid) pentaerythritol ester, stirred evenly;

[0056] (2) Add starch nanocrystals and stir evenly;

[0057] (3) add toluenesulfonic acid, stir;

[0058] (4) Seal the material, place it in an oven at a temperature of 70° C., and react for 8 hours to obtain a furan resin material modified by a high-strength multi-arm crosslinking agent and starch nanocrystals.

[0059] The compression sample preparation process and testing process are all the same as in Example 1.

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Abstract

The invention provides a furan resin material based on multi-arm cross-linking agent and starch nanocrystal modification as well as a preparation method and application of the furan resin material. The furan resin material is prepared from the following raw materials in parts by weight: 20-40 parts of furan resin and 20-40 parts of filler, 70-95 parts of furan resin, 5-20 parts of a curing agent,0-5 parts of a multi-arm cross-linking agent and 0-5 parts of starch nanocrystals. The furan resin has the characteristics of controllable curing plugging time and long-term stability in acid and alkali resistance and can be used as a matrix of a high-strength permanent plugging material; meanwhile, the mechanical properties and heat resistance of the furan resin material are enhanced by using themulti-arm crosslinking agent and starch nanocrystals. The modified furan resin type plugging material can improve the waterflooding development effect and realize the function of permanently pluggingan underground water outlet layer.

Description

technical field [0001] The invention relates to the fields of functional polymer materials and oil field fracturing, in particular to a furan resin material modified based on a multi-arm crosslinking agent and starch nanocrystals, and a preparation method and application thereof. Background technique [0002] Water injection fracturing is a technology that creates cracks in the oil layer through hydraulic action, improves the flow environment of oil in the ground, and thus increases the production of oil wells. However, it also causes problems such as rising water content in the oil field and low utilization of water injection, which affects oil recovery and pollutes at the same time. environment. In order to improve this problem, plugging materials are widely used in the field of fracturing in oilfields. [0003] Thermosetting resin plugging materials are generally added with curing agents, catalysts, accelerators, toughening agents and other additives, and undergo a curin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L61/00C08L3/02C08K5/42C08K5/372C09K8/42C09K8/44
CPCC08L61/00C08K5/42C08K5/372C09K8/44C09K8/426C08L3/02
Inventor 邵炎徐黎明张贵梓
Owner 汉中聚智达远环能科技有限公司
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