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A kind of resin sealing agent and preparation method thereof

A technology of plugging agent and resin, which is applied in the field of resin plugging agent and its preparation, can solve the problems of short validity period and poor profile control effect of plugging agent

Active Publication Date: 2022-04-29
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for reservoirs with large fractures, the plugging agent in the conventional profile control system has poor profile control effect and short validity period.

Method used

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  • A kind of resin sealing agent and preparation method thereof
  • A kind of resin sealing agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The resin blocking agent of this embodiment includes the following components in parts by weight: 100 parts of epoxy resin, 15 parts of diluent, 2.5 parts of crosslinking agent, 5 parts of toughening agent, and 5 parts of reinforcing agent.

[0028] Wherein the epoxy resin is bisphenol A type epoxy resin E-44; the diluent is 10 parts of ethanol and 5 parts of butyl glycidyl ether; the crosslinking agent is 2-ethyl-4-methylimidazole; the toughening agent is Dibutyl phthalate; the strengthening agent is 1250 mesh micro-silica fume.

Embodiment 2

[0030] The resin blocking agent of this embodiment includes the following components in parts by weight: 100 parts of epoxy resin, 25 parts of diluent, 2.5 parts of crosslinking agent, 5 parts of toughening agent, and 5 parts of reinforcing agent.

[0031] Wherein the epoxy resin is bisphenol A type epoxy resin E-51; diluent is 10 parts of isopropanol and 15 parts of allyl glycidyl ether; crosslinking agent is 2-ethyl-4-methylimidazole; toughening The agent is nitrile rubber-26; the reinforcing agent is 1250 mesh micro silica fume.

Embodiment 3

[0033] The resin blocking agent of this embodiment includes the following components in parts by weight: 100 parts of epoxy resin, 15 parts of diluent, 3 parts of crosslinking agent, 5 parts of toughening agent, and 5 parts of reinforcing agent.

[0034] Wherein the epoxy resin is bisphenol A type epoxy resin E-44; the diluent is 10 parts of ethanol and 5 parts of butyl glycidyl ether; the crosslinking agent is polyoxypropylene triamine; the toughening agent is phthalic acid two Butyl ester; the strengthening agent is light calcium carbonate.

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Abstract

The invention belongs to the technical field of petroleum exploitation, and in particular relates to a resin plugging agent and a preparation method thereof. The resin plugging agent of the present invention comprises the following components by weight: 100 parts of resin, 10-25 parts of diluent, 2.4-3.0 parts of crosslinking agent, 5-20 parts of toughening agent, and 5-20 parts of reinforcing agent; The resin is epoxy resin. The resin plugging agent of the present invention has high compressive strength, good plugging effect and good long-term stability, and is suitable for long-term plugging of large pores and fractured oil reservoirs.

Description

technical field [0001] The invention belongs to the technical field of petroleum exploitation, and in particular relates to a resin plugging agent and a preparation method thereof. Background technique [0002] In the process of oil field development, when the original energy of the oil layer begins to decrease, it is necessary to manually replenish energy to the formation, that is, to inject water into the oil reservoir, so as to enhance oil recovery. my country has abundant low-permeability fractured reservoirs such as Changqing Oilfield, the main oilfields of North China Bureau and East China Bureau. However, due to the existence of natural fractures and fractured fractures, the problem of water injection and water channeling is common in low-permeability fractured reservoirs. Excess water production from oil reservoirs is one of the serious problems in the petroleum industry. Water coming out of the well creates additional disposal costs and reduces recovery. As an im...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K8/512
CPCC09K8/512C09K8/5086
Inventor 魏开鹏方群陈付虎刘岳龙邓学峰斯容熊佩杨欢刘学全王薇
Owner CHINA PETROLEUM & CHEM CORP