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High-temperature-resistant low-burning-rate solid fuel gas generating agent for oil field fracturing and preparation method thereof

A gas generating agent and oil field fracturing technology, which is applied to offensive equipment, explosives processing equipment, ammonium perchlorate compositions, etc., can solve problems such as poor heat resistance, and achieve lower production costs, good compatibility, and improved technology. Simple and easy effects

Inactive Publication Date: 2020-02-14
CNOOC ENERGY TECH & SERVICES +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a high temperature resistant low burning rate solid gas generating agent for oil field fracturing, so as to solve the problem of poor heat resistance of existing gas generating agents

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A high temperature resistant low burning rate solid gas generating agent for oil field fracturing, comprising the following components in mass percentages;

[0023] Bisphenol A diglycidyl ether type epoxy resin (E-42): 16.8%; methyltetrahydrophthalic anhydride (MeTHPA): 14%; ammonium perchlorate (AP): 69%; cooling agent: 0%; 2,4,6-tris(dimethylaminomethyl)phenol (DMP-30): 0.2%.

[0024] A method for preparing a high-temperature-resistant and low-burning-rate solid gas generating agent for oil field fracturing, the specific operation steps include;

[0025] S1, prepare raw materials according to the above-mentioned each component and the mass percentage of each component;

[0026] S2. Put the prepared raw materials into a vertical mixer for mixing, the mixing temperature is 59° C., and the mixing time is 70 minutes to obtain a slurry;

[0027] S3. Vacuum spray and pour the slurry into a mold or an engine, and then put it in an oil bath oven at a temperature of 62°C to ...

Embodiment 2

[0031] A high temperature resistant low burning rate solid gas generating agent for oil field fracturing, comprising the following components in mass percentages;

[0032] Bisphenol A diglycidyl ether type epoxy resin (E-44): 11.36%; methyl hexahydrophthalic anhydride (MeHHPA): 10.51%; ammonium perchlorate (AP): 66.43%; calcium carbonate ( CaCO3): 11%; 1,8-diaza-bicyclo[5.4.0]undecene-7 (DBU): 0.7%.

[0033] A method for preparing a high-temperature-resistant and low-burning-rate solid gas generating agent for oil field fracturing, the specific operation steps include;

[0034] S1, prepare raw materials according to the above-mentioned each component and the mass percentage of each component;

[0035] S2. Put the prepared raw materials into a vertical mixer for mixing, the mixing temperature is 63° C., and the mixing time is 78 minutes to obtain a slurry;

[0036] S3. Vacuum spray pour the slurry into a mold or an engine, and then put it in an oil bath oven at a temperature ...

Embodiment 3

[0040] A high temperature resistant low burning rate solid gas generating agent for oil field fracturing, comprising the following components in mass percentages;

[0041] Bisphenol A diglycidyl ether type epoxy resin (E-51): 12.6%; methyl hexahydrophthalic anhydride (MeHHPA): 13.1%; ammonium perchlorate (AP): 65.1%; calcium carbonate ( CaCO3): 8.6%; 1,8-diaza-bicyclo[5.4.0]undecene-7 (DBU): 0.6%.

[0042] A method for preparing a high-temperature-resistant and low-burning-rate solid gas generating agent for oil field fracturing, the specific operation steps include;

[0043] S1, prepare raw materials according to the above-mentioned each component and the mass percentage of each component;

[0044] S2. Put the prepared raw materials into a vertical mixer for mixing, the mixing temperature is 64° C., and the mixing time is 80 minutes to obtain a slurry;

[0045] S3. Vacuum spray pour the slurry into a mold or an engine, and then put it in an oil bath oven at a temperature of...

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Abstract

The invention relates to a high-temperature-resistant low-burning-rate solid fuel gas generating agent for oil field fracturing and a preparation method thereof. The preparation method is invented tosolve the problem of poor heat resistance of an existing fuel gas generating agent. The high-temperature-resistant low-burning-rate solid fuel gas generating agent for oil field fracturing is preparedfrom the following components in percentage by mass, 8%-18% of bisphenol A diglycidyl ether type epoxy resin, 5%-14% of a curing agent, 65%-82% of an oxidant, 0%-15% of a cooling agent and 0.1%-0.8%of a curing accelerator. The preparation method of the high-temperature-resistant low-burning-rate solid fuel gas generating agent for oil field fracturing comprises the specific operation steps: preparing materials according to the above components and the mass percentages of the components; putting the prepared raw materials into a vertical mixer for mixing, and preparing a slurry; and carryingout vacuum spraying and pouring of the slurry into a mold or an engine, then curing in an oil bath drying oven to obtain the high-temperature-resistant low-burning-rate solid fuel gas generating agentfor oil field fracturing after curing.

Description

technical field [0001] The invention belongs to the technical field of oilfield fracturing, and in particular relates to a high-temperature-resistant low-burning-rate solid gas generating agent for oilfield fracturing and a preparation method thereof. Background technique [0002] Oilfield fracturing is an important part of the exploration and development projects of medium and low permeability oilfields. During the fracturing process of oilfields, because the properties of medium and low permeability oilfield reservoirs are limited to drilling and drilling fluid pollution, etc., the natural capacity of oil wells decreases after perforation, and the production efficiency is poor. If they want to put into normal production, they must go through fracturing. Well, innovation in fracturing stimulation is an important scientific evaluation during the development of low-permeability fields. Oil well fracturing technology, as an important part of petroleum technology, has been pai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C06B29/22C06B21/00
CPCC06B21/0058C06B29/22
Inventor 黄波孙林陈维余易飞李旭光熊培祺张杰师西宏冯煊
Owner CNOOC ENERGY TECH & SERVICES
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