Detonation gas rock breaking experimental device and method

A technology of explosive gas and experimental equipment, which is applied in the field of explosive gas rock-breaking experimental equipment, can solve the problems of low loading rate and inability to accurately reflect the explosive gas load waveform, and achieve secondary damage prevention, simple structure, and easy operation. convenient effect

Inactive Publication Date: 2016-02-03
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For the explosive gas acting on the wellbore rock, the column hole impact test is an easy-to-implement research method. The document "DavidW. Realize impact, the load waveform is easy to control, but the load waveform of water impact is differ

Method used

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  • Detonation gas rock breaking experimental device and method
  • Detonation gas rock breaking experimental device and method
  • Detonation gas rock breaking experimental device and method

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Embodiment

[0026] The explosive gas rock-breaking experimental device described in this embodiment includes a cylinder body 1, an ignition device 2, a sample center hole 3, an upper cover plate 4, a lower cover plate 5, an upper piston 6, a lower piston 7, and an upper piston center hole 8 , support rod 9, compression bolt 10, pressure measuring bolt 11, water injection hole 12, sample 13, pressure measuring sensor 14 and lower piston center hole 15; There are two upper cover plates 4, and an upper piston 6 is installed under each upper cover plate 4, and an upper piston center hole 8 is left between the two upper pistons 6; two lower cover plates are arranged at the lower end of the cylinder body 1 5. A lower piston 7 is installed above each lower cover plate 5, and a lower piston center hole 15 is left between the two lower pistons 7; a sample 13 is placed between the upper piston 6 and the lower piston 7, and the sample The two ends of 13 are pasted with 4mm thick double-sided tape an...

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Abstract

The invention belongs to the technical field of petroleum engineering, and relates to a detonation gas rock breaking experimental device and method. The detonation gas rock breaking experimental device is characterized in that: two upper cover plates are arranged at the upper end of a cylinder body; an upper piston is mounted below each upper cover plate; lower cover plates are arranged at the lower end of the cylinder body; a lower piston is mounted above each lower cover plate; a sample is placed between each upper piston and the corresponding lower piston; a sample central hole is formed between the samples; compression bolts are arranged on the upper cover plates; compression bolts and pressure measurement bolts are arranged on the lower cover plates; a water injection hole is formed in the top end of one upper cover plate; an ignition element assembly is mounted in the middle of the cylinder body, and sequentially penetrates through the upper cover plates, an upper piston central hole, the sample central hole and a lower piston central hole; a pressure measurement sensor is arranged at the bottom end of the ignition element assembly, and is mounted in the lower cover plates in an embedded manner; supporting rods are mounted at the bottoms of the lower cover plates. According to the detonation gas rock breaking experimental device and method, the structure is simple, the theory is scientific, the operation is convenient, and the experimental data is accurate.

Description

Technical field: [0001] The invention belongs to the technical field of petroleum engineering, and relates to an experimental device and method for blasting gas to break rocks. By simulating the damage and destruction effect of blasting gas on rocks, the action mechanism and damage law of blasting gas on well wall rocks are studied. Background technique: [0002] The most basic feature of unconventional oil and gas reservoirs is that the natural seepage capacity of the formation is poor, and it needs to be reformed for economical and effective development. At present, the methods used to stimulate unconventional oil and gas reservoirs include two categories, one is static loading on the formation, the most prominent representative is hydraulic fracturing technology; the other is dynamic loading on the formation, such as high-energy gas fracturing, explosion technology, etc. In recent decades, hydraulic fracturing technology has been widely studied and applied, but because th...

Claims

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Application Information

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IPC IPC(8): G01N33/00
Inventor 林英松陈力丁雁生蒋金宝
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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