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A soluble bridge plug with its own fracturing ball

A technology of fracturing balls and soluble bridges, applied in the direction of drill pipe, casing, wellbore/well components, etc.

Active Publication Date: 2021-09-14
大安鸿源管业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a soluble bridge plug with fracturing balls, which solves the problems raised in the above-mentioned background technology

Method used

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  • A soluble bridge plug with its own fracturing ball
  • A soluble bridge plug with its own fracturing ball
  • A soluble bridge plug with its own fracturing ball

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Embodiment Construction

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative work all belong to the protection scope of the present invention.

[0027] see Figure 1-7, a soluble bridge plug with a fracturing ball, including a seat seal sleeve 1, one end of the seat seal sleeve 1 is movably connected with a first top pressure cone 2, and the surface of one end of the first top pressure cone 2 is clamped Connected with a sealing composite cylinder 3, the interior of the sealing composite cylinder 3 includes a sealing cylinder body 31, and the top surface of the two ends of the sealing cylinder bod...

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Abstract

The invention relates to the technical field of oil field downhole tools, and discloses a soluble bridge plug with a fracturing ball, including a sealing sleeve, one end of the sealing sleeve is movably connected with a first pressure cone, and The surface of one end of the first pressing cone is clamped with a sealing composite cylinder, and the inside of one end of the sealing composite cylinder is clamped with a second pressing cone, and one end of the second pressing cone is fixedly sleeved with an anti-corrosion Disconnect. In the present invention, the rod-ball integrated structure composed of the positioning screw block, the throwing rod, the fracturing ball and the first connecting flange can perform the non-recovery operation of the throwing rod during the sealing operation of the device, and realize the orientation of the fracturing ball Set to the port at one end of the first top pressure cone, replacing the use of traditional devices where the fracturing ball is combined with the port at one end of the bridge plug body, increasing the control of the movement of the fracturing ball by the process workers, eliminating misalignment or loose seals, etc. Hidden danger.

Description

technical field [0001] The invention relates to the technical field of oil field downhole tools, in particular to a soluble bridge plug with fracturing balls. Background technique [0002] As a typical unconventional oil and gas reservoir resource, shale gas has the characteristics of low porosity and extremely low matrix permeability. At present, staged fracturing of horizontal wells has become a key technology for the efficient development of shale gas reservoirs. In the staged fracturing process of flat wells, through bridge plug / ball seat + clustered perforation joint operation, casing cementing sliding sleeve and other shale gas horizontal well staged fracturing technologies, it is pointed out that drillable composite bridge plugs are serialized Research, technical research on soluble tools and pilot research on wireless intelligent sliding sleeve tools are the key research directions, among which the soluble bridge plug is one of the products developed in the key resea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B33/128E21B43/26E21B17/02
CPCE21B17/021E21B33/1208E21B33/1285E21B43/26
Inventor 孙淑芳
Owner 大安鸿源管业有限公司