Throwing type fracturing equipment

A drop-in, fracturing technology, applied in the direction of production fluid, wellbore/well components, earthwork drilling and production, etc., can solve problems such as cable knotting, cable damage, and inability to construct, so as to save manpower and material resources and avoid obstacles The effect of knotting and improving safety

Inactive Publication Date: 2005-09-07
中国兵器工业第二一三研究所
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AI Technical Summary

Problems solved by technology

The main defects of the cable conveying fracturing process are: (1) each construction operation needs to be equipped with equipment such as cable cars and magnetic locators, and the construction site must also control electricity and high-frequency communication equipment; (2) During the process, the cable will be knotted when encountering resistance, resulting in shutdown or rework; (3) the elongation of the cable is uncertain with time and temperature changes, which makes the action position of the electric igniter deviate from the target layer; (4) the process is affected by Time and climatic conditions are greatly restricted, and construction cannot be carried out at night and under severe climatic conditions such as strong wind, sand, rain and snow; (5) During the fracturing operation, high-temperature and high-pressure gas will cause damage to the cable, which will cost a lot human and material re

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  • Throwing type fracturing equipment
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Embodiment Construction

[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0022] as figure 1 As shown, the preferred embodiment of the present invention consists of a pressure igniter A and a high energy gas generator B. The pressure igniter A is connected with the high-energy gas generator B through the connecting body of its firing mechanism.

[0023] see figure 2 , The pressure igniter A of this preferred embodiment includes a tail cap 1, a body 2, a pressure release mechanism, a firing pin assembly, and an ignition mechanism. The body 2 is a cylindrical shell made of steel with multiple central stepped through holes, one end of which is provided with an external thread and the other end is provided with an internal thread. The tail cover 1 has internal threads and radial through holes. The pressure release mechanism includes a pressure bearing pin 3, a pressure bearing ring 4 and a piston 5, and t...

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Abstract

The invention discloses a throwing compression fracture machine that is suited to oil or gas throwing compression fracture effect increasing technology. It is made up of piezo ignition machine and high energy gas generator. The feature is that the piezo ignition machine could cut off the pressure bearing bolt by function of the liquid column, and make the plunger move to drive the firing pin to knock percussion cap. The percussion cap would fire the starting cartridge, powder and powder column. The fire output by the piezo ignition machine would fire the plural powder columns in high energy gas generator and compressing the object storing layers to fracture. The invention is easy to operate and sharply decreases the consumption of manpower and material.

Description

technical field [0001] The invention belongs to the technical field of oil and gas well high-energy gas production and efficiency enhancement operations, and in particular relates to a drop-in fracturing device suitable for the oil and gas well fracturing efficiency enhancement process. Background technique [0002] During the continuous exploitation of old oil wells, there will be precipitation of petroleum coal tar colloids and asphaltene, precipitation of paraffin and salt, emulsion, clay and fresh water reaction expansion in the oil rock formation; in addition, in the process of drilling and oil testing, oil The rock formation will also be polluted by mud; various impurities will also invade into the oil rock formation during workover. The combination of the above conditions leads to the deterioration of the permeability near the wellbore and the decrease of oil productivity. Therefore, different fracturing stimulation measures can be adopted...

Claims

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Application Information

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IPC IPC(8): E21B43/26
Inventor 王秀芝惠宁利王锋张锋
Owner 中国兵器工业第二一三研究所
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