Damping and righting device for pumping intelligent opening device, intelligent opening device and multi-stage fracturing intelligent control system

Abstract

The invention relates to the field of petroleum underground construction, in particular to a damping and righting device for a pumping intelligent opening device. The damping and righting device comprises a device main body made of an elastic material and provided with a damping part and a righting part; one end of the damping part is connected with one end of the righting part; the righting part is of a cylindrical structure, a righting wing is arranged in an axial direction of the righting part, and the righting wing extends towards the other end of the righting part; and one end of the damping part or / and the other end of the righting part is / are provided with a connecting structure connected with a downhole tool. Through the structure, electronic components in an electric actuating mechanism can be well protected, normal functions of the electronic components are ensured, and failure of the electronic components is avoided; and meanwhile, the electric actuating mechanism is always kept in a middle position of a shaft, the electric actuating mechanism cannot deflect, and the efficiency and reliability of well descending are improved.

Description

technical field [0001] The invention relates to the field of underground oil well construction, in particular to a shock absorbing and centralizing device for pumping intelligent opening devices, an intelligent opening device and a multi-stage fracturing intelligent control system. Background technique [0002] In the downhole tool of the packer + sliding sleeve horizontal well staged fracturing technology, the sliding sleeve is one of the core components. The opening method of the sliding sleeve will have a great impact on the wellbore structure and the structure of the ground equipment, as well as the time and cost of fracturing. have a big impact. [0003] There are many ways to open the fracturing sleeve, and the common one is to open by throwing a ball from the wellhead. After it falls to the position of the sliding sleeve, pressurize the tubing, and hydraulically push the fracturing ball to open the sliding sleeve. The process of pitching the ball is simple and the op...

AI Technical Summary

Problems solved by technology

The disadvantage of this tool is that the structure is relatively complex, and the hydraulic feedback pipeline is exposed in the wellbore and is easily damaged

[0005] With the development of technology, a new type of electronically controlled sliding sleeve has emerged. The main functional components of this sliding sleeve are electronic controllers and electric actuators. The electric actuators include a large number of electronic components and power supplies. When the actuator goes down the well, it will collide with the well wall. Due to the fast speed of going down the well, it will also have a great impact on the electric actuator, which will damage the electronic components in the electric actuator. At the same time, the electric actuator is due to Its inner diameter is smaller than the inner diameter of the wellbore, and when the electric actuator goes down the well, it will tilt and come into contact with the well wall, so that the electric actuator cannot go down normally.

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