Lockable Ball Shear Seat

Abstract

The invention discloses a lockable ball-type shearing ball seat, which includes an upper joint, the bottom of the upper joint is connected with a bypass valve body through thread seal and rotation, and the inner bottom of the bypass valve body is connected with an intermediate joint through thread seal and rotation , the inner bottom of the intermediate joint is threaded and rotatably connected to a lower joint, and the upper ends of the upper joint, the bypass valve body, the intermediate joint and the lower joint are all penetrated with interconnected through grooves, the bypass valve body and A ball seat is slidably connected inside the through groove of the intermediate joint, and a limiting groove is provided at the upper end of the ball seat. The advantage is that in the present invention, during the downward movement of the ball seat, the locking block can move inwardly in the radial direction under the action of the annular chute, thereby realizing the blocking and limiting of the sealing ball and ensuring the smoothness of the production channel. It is stable in use, and can avoid damage to oil production equipment such as electric pumps due to the upward movement of the sealing ball, which can ensure the safe use of oil production equipment.

Description

Technical field [0001] Technical Field The present invention relates to a tool for oil and gas well completion, and particularly to lockable ball shear ball seat. Background technique [0002] After completion refers to the open hole design depth of drilling, the reservoir bottom and a certain structure communicate with each process, completion of drilling work is an important part of the final, but also the beginning of oil production projects, with future oil production, water injection and the entire oil and gas fields development are closely linked, and the quality of the oil well completions direct impact on productivity and economic life of a well, even to the entire field can get a reasonable development; [0003] In oil and gas well completion process, used to shear the ball seat to seat hydraulic packer, and a conventional shearing tee after completion packer sealing seat, shear ball seat, the ball seals the inner tubing string is still can be moved upwardly, the oil pro...

AI Technical Summary

Problems solved by technology

[0003] In the completion process of oil and gas fields, the shear ball seat is often used to hydraulically seat the packer. However, after the existing shear ball seat completes the packer seat and shear ball seat, the sealing ball remains inside the string. It can move upwards. In the later production and oil production process, the sealing ball will move upwards with the production fluid and damage oil production equipment such as electric pumps. For this reason, we propose a lockable ball shear ball that can limit the position of the sealing ball. seat

Images