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An all-metal fracturing soluble bridge plug

An all-metal, bridge plug technology, applied in wellbore/well components, sealing/package, earthwork drilling and production, etc., to achieve the effects of fewer parts, complete deformation, and uniform sealing force

Active Publication Date: 2021-05-28
成都通土科技有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] To this end, the embodiment of the present invention provides an all-metal fracturing soluble bridge plug to solve the problems of defects and deficiencies in the use of soluble bridge plugs in the prior art

Method used

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  • An all-metal fracturing soluble bridge plug
  • An all-metal fracturing soluble bridge plug
  • An all-metal fracturing soluble bridge plug

Examples

Experimental program
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Embodiment 1

[0026] like figure 1 and figure 2 As shown, the embodiment of the present invention provides an all-metal fracturing soluble bridge plug, comprising:

[0027] A locking ring 1, wherein the locking ring 1 has a cylindrical structure and has a central flow channel;

[0028] Slips 2, wherein the slips 2 have a cylindrical structure, are fitted on the locking ring 1, and a gap is formed between the inner wall of the slips 2 and the outer wall of the locking ring 1, which is used to radially expand and bite after receiving the setting force Insert the inner wall of the casing and establish an axial positioning bridge plug with the casing, and the slips 2 adopt an integral cylindrical structure, so that the slips 2 are evenly distributed when they expand outward in the squeezed state;

[0029] The cone assembly 3 includes an upper vertebral body 31 and a lower vertebral body 32, wherein the upper vertebral body 31 is set on the upper end of the locking ring 1 and fixed on the loc...

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PUM

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Abstract

The embodiment of the invention discloses an all-metal fracturing soluble bridge plug, including slips, a cone assembly, a metal sealing ring, a setting ring and a locking ring, the slips are fitted on the locking ring and the locking ring A gap is formed between the inner wall of the tile and the outer wall of the locking ring. The cone assembly includes an upper vertebral body and a lower vertebral body. The small-diameter end of the lower vertebral body is wedged in the gap between the slips and the locking ring, the metal sealing ring is set on the outer inclined wall of the upper vertebral body, and the setting activation ring is set on the outer inclined wall of the lower vertebral body , and the locking ring, slips, cone assembly, metal seal ring, and setting ring are all made of soluble metal. The present invention utilizes a wedge-shaped fitting structure between the metal sealing ring, the slips and the vertebral body, so that the metal sealing ring forms a firm fit with the inner wall of the casing, so that the sealing force is uniform and the bridge plug has a stable structure and strength.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of oil and gas field development, and in particular to an all-metal fracturing soluble bridge plug. Background technique [0002] The soluble bridge plug currently used in the market is made of soluble metal + soluble rubber (aging elastomer). Because the structure adopts the structure of the conventional bridge plug or packer, there are still many parts to be processed, the number is more than 20 pieces. At the same time, due to the lack of strength or hardness of the soluble metal, the size of each part is enlarged in the design. The inner diameter of the bridge plug becomes smaller; as the sealing part of the soluble bridge plug, the material is usually a polymer elastomer. It is aging and soluble under the action of light, but such elastic materials have great technical hidden dangers and construction risks in actual use. Since the elastic body must strictly control the storage...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B33/134
CPCE21B33/134
Inventor 宋贵明
Owner 成都通土科技有限公司