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High-reliability hydraulic ejector

A hydraulic injector, reliable technology, applied in the direction of mining fluid, wellbore/well components, earthwork drilling and production, etc., can solve problems such as tool failure, tool external damage, nozzle and pressure cap drop, etc., to prevent drop , Improve the reliability of use and the efficiency of construction, and the effect of increasing the number of construction sections

Active Publication Date: 2014-07-30
西安迈卓能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] During hydraulic jet fracturing operations in oil and gas fields, ultra-high-speed water jets are used to drive abrasives to carry out perforation. Damage, severe cases may even lead to the drop of the nozzle and pressure cap
Existing hydraulic jet tools generally can only perform one or two operations, which will lead to tool failure and require multiple tool replacements to complete the construction operation of a well

Method used

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Embodiment Construction

[0013] Combine below figure 1 , 2 , 3 describe an embodiment of the present invention.

[0014] A high-reliability water power injector, comprising a body 1, on which a pressure cap hole 2 is formed, the pressure cap hole 2 is in the shape of a step with a large outside and a small inside, and the small hole at the inner end is an internally threaded hole ; The pressure cap 4 is a stepped shape that matches the shape of the pressure cap hole 2, and its inner hole is a stepped shape that is small on the outside and large on the inside. The nozzle 3 is inserted into the large hole at the inner end, and the small hole at the outer end is an inner hexagon. Used for loading and unloading of the pressure cap 4; the pressure cap 4 is installed in the internal threaded hole at the inner end of the pressure cap hole 2 through the external thread on the outer wall of the small end; the outer end surface of the pressure cap 4 is brazed with a pressure cap 9, and the gland 9 is clamped ...

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Abstract

The invention discloses a high-reliability hydraulic ejector, which is characterized in that the body of the hydraulic ejector is provided with a pressing cap hole, a nozzle is positioned in a pressing cap, and the pressing cap is fixedly arranged on the pressing cap hole. The inner wall of the body is provided with an annular groove, the annular groove is communicated with the lower end opening of the body, and a lining is inserted into the annular groove from the lower end opening of the body. The lower end surfaces of the body and the lining are both provided with corresponding positioning grooves, positioning blocks are inserted into the positioning grooves so as to position the lining on the body in the circumferential direction, thus a jet hole in the lining is aligned with the nozzle, and the diameter of the jet hole is larger than the inside diameter of the nozzle and is smaller than the outer diameter of the nozzle. The lower end opening of the body is connected with a lower connector, and the positioning blocks are restricted in the positioning grooves by virtue of the inner end surface of the lower connector. The outer end surface of the pressing cap is fixedly provided with a gland. By arranging the lining made of a special wear-resistant material and the gland, inner scouring and backwashing problems of the hydraulic ejector in the oil and gas field on-site construction process can be effectively solved, the use reliability of the hydraulic ejection tool is greatly improved, and the number of construction sections is greatly increased.

Description

technical field [0001] The invention belongs to the technical field of hydraulic jet fracturing operation equipment for oil and gas fields, and in particular relates to a high-reliability hydraulic jet. Background technique [0002] During hydraulic jet fracturing operations in oil and gas fields, ultra-high-speed water jets are used to drive abrasives to carry out perforation. In severe cases, it may even cause the nozzle and pressure cap to fall off. Existing hydraulic jet tools generally can only perform one or two operations, which will lead to tool failure, requiring multiple tool replacements to complete the construction operation of a well. Contents of the invention [0003] The technical problem to be solved by the present invention is to design a high-reliability water jet, which can effectively prevent the high-speed water jet from eroding the inside of the water jet, the high-speed water jet backsplash from damaging the outside of the water jet, and the nozzle ...

Claims

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Application Information

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IPC IPC(8): E21B43/114
Inventor 姚剑锋鲁厂峰葛旭李建波仝宗艳张大伟王小波
Owner 西安迈卓能源科技有限公司
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