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Granular preparation for perforation of oil-gas well

A granular preparation, oil and gas well technology, applied in explosives, etc., can solve the problems of long penetration, large pore size, and small compaction pollution, and achieve the effects of reducing production energy consumption, increasing yield and yield, and reducing production costs

Inactive Publication Date: 2016-12-07
田磊
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method can only balance some advantages and disadvantages of deep penetration and large-aperture perforation technology to a certain extent, and has not comprehensively achieved the ideal requirements of long penetration, large aperture, and small compaction pollution. There is still widespread controversy in the industry

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] 1. Formula (parts by weight):

[0045] 43 parts of oxidant (chromium trioxide); 45 parts of combustion agent (silver powder); 5 parts of functional additive (2:1 mixture of titanium dioxide and tungsten powder); 2 parts of combustion regulator (antimony trioxide); 5 parts of isobutylene); 30 parts of solvent (ethyl formate);

[0046] 2. Process steps:

[0047] 2.1 Direct material mixing: use a cyclone material mixer, add 43 parts of oxidant, 45 parts of combustion agent, 5 parts of functional additive, 2 parts of combustion regulator, and mix materials for 30 minutes;

[0048] 2.2 Dissolution: Add 30 parts of solvent into the reaction pot, add 5 parts of binder, control the temperature at 60°C, fully stir and dissolve to make it a composite solution;

[0049] 2.3 Indirect material coating: Add the mixed material into the compound solution at a uniform speed, control the temperature at 40°C, and stir evenly for 60-120 minutes;

[0050] 2.4 Vacuuming: while the indirec...

Embodiment 2

[0054] 1. Formula (parts by weight):

[0055] 60 parts of oxidizing agent (1:3 mixture of potassium nitrate and iron oxide); 25 parts of combustion agent (carbon powder); 7 parts of functional additive (1:1 mixture of bismuth powder and tantalum powder); 3 parts of combustion regulator (magnesium silicate) ; 5 parts of adhesive (fluororubber); 47 parts of solvent (amyl acetate);

[0056] 2. Process steps:

[0057] 2.1 Direct material mixing: use a cyclone material mixer, add 60 parts of oxidant, 25 parts of combustion agent, 7 parts of functional additive, 3 parts of combustion regulator, and mix materials for 30 minutes;

[0058] 2.2 Dissolution: Add 47 parts of solvent into the reaction pot, add 5 parts of binder, control the temperature at 60°C, fully stir and dissolve to make it a composite solution;

[0059] 2.3 Indirect material coating: Add the mixed material into the compound solution at a uniform speed, control the temperature at 40°C, and stir evenly for 60-120 min...

Embodiment 3

[0064] 1. Formula (parts by weight):

[0065] 49 parts of oxidizing agent (5:6 mixture of barium phosphate and copper oxide); 38 parts of combustion agent (2:1 mixture of aluminum powder and carbon powder); 5 parts of functional additive (1:1 mixture of titanium powder and molybdenum powder); combustion regulator 6 parts of (colloidal graphite); 2 parts of binder (hydroxypropyl cellulose); 25 parts of solvent (ethyl formate);

[0066] 2. Process steps:

[0067] 2.1 Direct material mixing: use a cyclone material mixer, add 49 parts of oxidant, 38 parts of combustion agent, 5 parts of functional additive, 6 parts of combustion regulator, and mix materials for 30 minutes;

[0068] 2.2 Dissolution: Add 25 parts of solvent into the reaction pot, add 2 parts of binder, control the temperature at 60°C, fully stir and dissolve to make it a composite solution;

[0069] 2.3 Indirect material coating: Add the mixed material into the compound solution at a uniform speed, control the tem...

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PUM

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Abstract

The invention discloses a granular preparation for perforation of an oil-gas well. The granular preparation comprises one or several kinds of a mixture of barium phosphate and copper oxide, a mixture of barium nitrate and chromium sesquioxide, or a mixture of potassium nitrate and ferric oxide, one or several kinds of a mixture of aluminum powder and carbon powder, a mixture of carbon powder and boron powder, or carbon powder, one or several kinds of a mixture of titanium powder and molybdenum powder, a mixture of tungsten powder and bismuth powder, and a mixture of bismuth powder and tantalum powder, one or several kinds of colloidal graphite, antimony trioxide or magnesium silicate, one or several kinds of hydroxypropyl cellulose, acetate fibers or fluoro rubber, and one or several kinds of ethyl formate, ethyl acetate or amyl acetic ester.

Description

technical field [0001] The invention belongs to the technical field of perforation for oil and gas wells, and relates to a powder particle medicament for aftereffect perforation. Background technique [0002] As early as the 1840s, gunpowder propellant technology was studied as the main means of various oil and gas field stimulation technologies. By the 1970s, on the basis of a large number of experiments and theoretical studies, composite perforation and Fracturing technology is becoming more and more mature and has been widely used in the former Soviet Union and the United States. Composite perforation and fracturing technology is to ignite the gunpowder or rocket propellant placed in the perforating gun after the detonation of the perforating bullet, make it burn, and generate a large amount of high-temperature and high-pressure gas, which passes through the barrel and ring sleeve with high-pressure The impact of the pulse wave forms the rock formation, and produces mult...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C06B33/00C06B33/14C06B33/12
CPCC06B33/00C06B33/12C06B33/14
Inventor 田磊田志波
Owner 田磊
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