A method for using a bridge plug valveless hydraulic setting tool

By designing the bridge plug valve-free hydraulic securing tool, the automatic securing and reset of the bridge plug is achieved by using a two-way hydraulic pump and pressure sensor, solving the safety hazards of the bridge plug tool in the existing technology, high cost, non-reusable and complex operation. The problem of improvements in efficiency and convenience.

CN112145109BActive Publication Date: 2025-01-10NANTONG UNIV
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Patent Information

Application Number
CN202010959697.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2020-09-14
Publication Date
2025-01-10
Estimated Expiration
2040-09-14

AI Technical Summary

Technical Problem

The existing cable bridge plug seating tools have safety hazards and high costs. The hydraulic bridge plug seating tools are equipped with a check valve, which is not reusable, complex in operation, long in length and low in efficiency.

Method used

A bridge plug valveless hydraulic sealing tool is designed, including a forward and reverse motor, upper joint, sleeve and cylinder. A bidirectional hydraulic pump, soft oil pipe, oil storage tank, push rod piston and gear ring are installed inside, and the two-way hydraulic pressure is passed The forward and reverse rotation of the pump realizes automatic seating and resetting of the bridge plug, and uses pressure sensor to detect pulses to control the oil pump operation, simplifying operation and improving efficiency.

Benefits of technology

The bridge plug valveless hydraulic seating tool has a reasonable structure, simple operation, high efficiency, shorter length, reduced labor costs, easy transportation, and reusable.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention provides a bridge plug valveless hydraulic sealing tool, including: a forward and reverse motor, an upper joint, a sleeve, a bidirectional hydraulic pump, a soft oil pipe, an oil storage tank, a push rod piston, and a gear ring. The sleeve inside the upper joint is connected to the shaft of the forward and reverse motor and the bidirectional hydraulic pump, the soft oil pipe is connected to the bidirectional hydraulic pump and the upper end of the push rod piston, the push rod piston and the inner wall of the cylinder form a first sealing chamber and a second sealing chamber, and the push rod piston is provided with a first hollow oil path and a second hollow oil path, the first hollow oil path is connected to the soft oil pipe and the first sealing chamber, the second hollow oil path is connected to the oil storage tank and the second sealing chamber, and the lower end of the push rod piston is connected to the bridge plug through the bridge plug upper joint. The present invention realizes the sealing action and the resetting recovery action through the forward and reverse rotation of the forward and reverse motor, and has a reasonable structure, simple operation, high efficiency, shorter length, convenient transportation, and can be reused.
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Citation Information

Patent Citations

  • Valveless hydraulic servo system and control method thereof

    CN103790874A

  • Booster type electronic control hydraulic bridge plug feeding tool

    CN104018797A

  • Novel active hydraulic control packer

    CN105909205A

  • Multiple on-off valves are adopted for oil field self-flowing water injection and self-spraying oil extraction

    CN209818025U