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Primary explosive for reservoir gas power production increase

A technology of pneumatic power and priming charge, which is applied in the direction of explosives, etc., can solve the problems of unreliable ignition and detonation methods, and achieve the effects of good detonation and detonation effects, low cost and simplified operation methods

Inactive Publication Date: 2014-05-14
XI'AN PETROLEUM UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But the general conclusion is as follows: "The condition of deflagration constant and steady propulsion is harsh, and multiple parameters need to be matched.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A kind of priming agent used for aerodynamic stimulation of reservoirs in this embodiment is made by uniformly mixing the following raw materials in mass percentage: 28% potassium chlorate, 12.5% ​​potassium perchlorate, 25.5% barium nitrate, 7% ammonium nitrate, magnesium powder ( particle size 10μm) 9%, aluminum powder (particle size below 10μm) 17%. Plus 1% fluorine rubber.

Embodiment 2

[0016] A kind of priming charge used for aerodynamic stimulation of reservoirs in this embodiment is made by uniformly mixing the following raw materials in mass percentage: 30% potassium chlorate, 11.5% potassium perchlorate, 25% barium nitrate, 5.5% ammonium nitrate, magnesium powder ( particle size 10μm) 12.5%, aluminum powder (particle size below 10μm) 14.3%. Add 1.2% of fluorine rubber.

Embodiment 3

[0018] A primer for aerodynamic stimulation of reservoirs in this embodiment is made by uniformly mixing the following raw materials in mass percentages: 31.2% potassium chlorate, 11% potassium perchlorate, 26% barium nitrate, 5% ammonium nitrate, magnesium powder ( particle size 10μm) 10%, aluminum powder (particle size below 10μm) 16%. Plus 0.8% fluorine rubber.

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Abstract

The invention discloses a primary explosive for reservoir gas power production increase. The primary explosive mainly comprises the following raw materials in percentage by weight: 28%-32% of potassium chlorate, 10%-14% potassium hyperchlorate, 24%-28% of barium nitrate, 3%-8% of ammonium nitrate, 8%-20% of aluminum powder, and 7%-18% of magnesium powder. The primary explosive also comprises 0.5%-1.5% of fluorous rubber as an adhesive. The primary explosive is not necessarily conveyed into rock gaps on the bottom of an oil well, so that the operation method is greatly simplified, the exposition effect is good, the ignition success rate reaches 100%, the oil production rate is effectively increased, and the primary explosive is safe and reliable, and has low cost.

Description

technical field [0001] The invention belongs to the technical field of explosives, in particular to a primary explosive used for aerodynamic stimulation of reservoirs. Background technique [0002] The oil reserves of low-permeability oil reservoirs in my country are very considerable, and the geological reserves of newly proven low-permeability oil fields are several billion tons, accounting for about 1 / 4 of my country's total oil reserves. Low-permeability reservoirs are usually developed by vertical wells and vertical infill wells, water injection development and horizontal well development. Vertical wells and vertical infill wells are developed using formation energy, and the recovery rate is low. Water injection development and fracturing development are relatively common development schemes for most low-permeability reservoirs at present, which need to increase the number of wells drilled and the number of oil layer stimulations, and the production cost will increase....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C06B33/14
Inventor 张杰廖红伟陈军斌胡继国郑宝林折文旭
Owner XI'AN PETROLEUM UNIVERSITY
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