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Hydraulic setting bridge plug

A bridge plug and hydraulic technology, applied in the field of hydraulic seat sealing bridge plug, can solve the problems of easy falling, not tight setting, etc., and achieve the effects of convenient drilling, reliable sealing, and reliable sealing

Inactive Publication Date: 2018-05-11
TIANJIN HUIZHU PETROLEUM EQUIP SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The setting bridge plugs in the prior art all use a single rubber tube, which is often not tightly set and easy to fall when the single rubber tube is set.

Method used

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  • Hydraulic setting bridge plug
  • Hydraulic setting bridge plug

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Experimental program
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Embodiment Construction

[0008] The specific implementation manner of the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments. Such as figure 1 with figure 2 As shown, a hydraulic seat bridge sealing plug includes an upper joint 1, an upper cone 2, an upper rubber barrel 3, an upper spacer ring 4, a middle rubber barrel 5, a lower spacer ring 6, a lower rubber barrel 7, and a lower cone 8 , outer cylinder 9, piston 10, pin 11, lower joint 12; the upper joint is connected with the lower joint, and the upper cone, the upper rubber tube, the upper spacer ring, the middle rubber tube, the lower spacer ring, the lower rubber The cylinder and the lower cone are set on the upper joint from top to bottom in sequence, the lower part of the lower cone is connected to the upper part of the piston, and the piston is placed between the outer cylinder and the upper joint. The lower part of the cylinder is connected with the lower joint throu...

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PUM

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Abstract

The invention relates to the technical field of oil field and oil well drilling and production, in particular to a hydraulic setting bridge plug. The hydraulic setting bridge plug comprises an upper connector, an upper conical body, an upper rubber cylinder, an upper spacer ring, a middle rubber cylinder, a lower spacer ring, a lower rubber cylinder, a lower conical body, an outer cylinder, a piston, a pin and a lower connector. The upper connector is connected with the lower connector, and the upper conical body, the upper rubber cylinder, the upper spacer ring, the middle rubber cylinder, the lower spacer ring, the lower rubber cylinder and the lower conical body are sequentially arranged on the upper connector in a sleeving mode from top to bottom. The lower portion of the lower conicalbody is connected with the upper portion of the piston, and the piston is arranged between the outer cylinder and the upper connector. The lower portion of the outer cylinder is connected with the lower connector through the pin, and the upper portion of the piston and the upper portion of the outer cylinder are provided with mutually-matched ratchets correspondingly. A liquid passing hole is formed in the lower portion of the upper connector and located below the piston. According to the hydraulic setting bridge plug, through cooperative use of the three rubber cylinders with different hardnesses, reliable sealing can be achieved, the upper connector and the lower connector are each made of a cast iron material, and thus drilling is facilitated.

Description

technical field [0001] The invention relates to the technical field of oil well drilling and production in oil fields, in particular to a hydraulic seat bridge sealing plug. Background technique [0002] In the process of oilfield exploration and development, especially in the construction process of oil testing, downhole operation, oil and gas layer transformation, formation testing, injection-production layer adjustment, etc., it is often necessary to use downhole cleaning and plugging tools to temporarily clean oil, gas, and water layers. or permanent blockage. Hydraulic bridge plugs are one of these retrievable plugging tools. During the plugging construction, it is lowered to the predetermined position underground, and the seat is controlled by the ground to realize the plugging of the target layer. The setting bridge plugs in the prior art all use a single rubber tube, which is often not tightly set and easy to drop when the single rubber tube is set. Contents of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B33/134
CPCE21B33/134
Inventor 阚红砖阚正玉
Owner TIANJIN HUIZHU PETROLEUM EQUIP SCI & TECH CO LTD
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