Electric hydraulic setting device

Abstract

The invention discloses an electric hydraulic setting device. The electric hydraulic setting device comprises a downhole electric hydraulic setting tool and a ground control box. The electric hydraulic setting tool comprises a vibration reduction electronic short joint, a hydraulic balance short joint, a hydraulic power short joint and an execution short joint. The vibration reduction electronic short joint and the hydraulic balance short joint are connected through a screw ring, the other end of the hydraulic balance short joint is connected with the hydraulic power short joint through a screw ring, and the other end of the hydraulic power short joint is connected with the execution short joint through a screw ring. The hydraulic balance short joint provides hydraulic oil, and hydraulic energy is converted into setting force through the hydraulic power short joint. A piston rod, a setting connecting shaft, a clamp key and a sliding sleeve short joint are arranged in the execution short joint. The end of the piston rod is connected with the setting connecting shaft. The setting connecting shaft is connected with the interior of a bridge plug by arranging a rod so as to generate setting action. According to the electric hydraulic setting device, an electronic short joint of a conventional instrument and the vibration reduction short joint are combined to the instrument, anti-vibration performance is improved, the length of the instrument is reduced, by means of modular split sealing design, the maintenance process is simplified, and the reliability of the instrument is improved.

Description

technical field [0001] The invention relates to the technical field of setting tools, in particular to an electrohydraulic setting device. Background technique [0002] At present, when performing stimulation operations, first performing bridge plug setting and then perforating operations is an important technical means for staged fracturing reconstruction. How to shorten the operation time of bridge plug setting and perforation fracturing, improve operation efficiency, and shorten the completion period is an important technical research with considerable economic value. [0003] At present, the most commonly used cable bridge plug setting tool at home and abroad is to use the slow-release gunpowder carried by the setting tool to burn to generate high-pressure gas, and then through the push cylinder and pull rod, the high-pressure gas is converted into a setting force, and finally the bridge plug is set, A series of actions such as throwing hands. The gunpowder used in it ...

AI Technical Summary

Problems solved by technology

[0008] In view of the current bridge plug setting technical means, the slow-release gunpowder-type bridge plug setting gunpowder approval procedures are cumbersome and complicated, and the later management and maintenance costs are high; the cable-type electromechanical setting is too costly to use battery power; conventional electro-hydraulic setting cannot Af...

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