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Joint hoop and clamping seat

A hoop and slip technology, applied in the field of oil well construction, can solve the problems of low reliability, increase the total dissolution time, and many parts, and achieve the effect of improving reliability

Pending Publication Date: 2022-01-18
VERTECHS PETROLEUM TECH INNOVATION & EQUIP MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing products are designed with separate slips, cones, and sealing structures. There are many parts and low reliability. If it is a soluble product, the total dissolution time will be increased.

Method used

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  • Joint hoop and clamping seat
  • Joint hoop and clamping seat
  • Joint hoop and clamping seat

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0048] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0049] Schematic diagram of the structure of the first embodiment of the joint hoop of the present invention, see Figure 1 to Figure 4 . A section hoop, the section hoop is a plastically deformable member, and a tapered internal passage is provided in the axial direction of the section hoop, including a sealing ring 1 and slips 2 that are arranged in an integrated structure, wherein the sealing ring 1 produces After the deformation, the outer surface is sealed with the inner wall of the sleeve 4, the slips 2 are opened radially and anchored with the inner wall of the sleeve 4, one end of the slips 2 is connected with the sealing ring 1, and several slips are arranged on the circumferential direction of one end of t...

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PUM

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Abstract

The invention relates to a plugging body, an underground plugging system and a plugging method. The plugging body comprises a plugging section, wherein a supporting section is arranged on the plugging section and is of a hollow structure with a closed end, the outer wall of the supporting section is a conical surface, the closed end is located at the small end of a cone formed by the conical surface, and the outer wall of the supporting section is matched with the inner wall of a ball seat. By adopting the plugging body, the supporting section of the plugging body is of the hollow structure, the time for forming a full-bore shaft can be shortened, the production time of an oil well is prevented from being delayed, and a channel meeting the production requirement can be provided for the oil and gas well earlier. Compared with a fracturing ball in the prior art, the plugging body can enter the inner channel of the ball seat for plugging, surface plugging is achieved, and the plugging effect is better. The plugging body can support the ball seat from the inner wall of the ball seat and plug the inner channel of the ball seat, the pressure bearing capacity of the ball seat in the well can be improved, and the plugging effect of the plugging body on the ball seat is improved.

Description

technical field [0001] The invention relates to the field of oil well construction, in particular to a joint hoop and a clip seat. Background technique [0002] Bridge plugs and ball seats are widely used in oil and gas well fracturing reconstruction and acidizing sleeve isolation. In the construction of fracturing reconstruction, the usual practice is to set the ball seat or bridge plug at the designated position of the downhole sleeve through the cable or hydraulic setting tool, and then pump the fracturing ball to seal the ball seat or bridge plug set in the well The internal channel of the bridge plug is perforated in the casing above the setting position, and the setting tool is pulled out for fracturing reconstruction. After the above operations are completed, a full-bore sleeve needs to be formed: if the ball seat or bridge plug is a soluble structure and the fracturing ball is a soluble structure, it can dissolve by itself until the casing forms a full-bore to meet ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B33/12E21B43/26
CPCE21B33/1208E21B43/261
Inventor 曾琦军江传龙
Owner VERTECHS PETROLEUM TECH INNOVATION & EQUIP MFG CO LTD
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