4-1/2" Wireline Entry Guide, Shear-out ball seat
To pressurize the tubing string, the wireline entry guide with ball seat is installed on the bottom end of the tubing, the completion is run to depth, then the ball is dropped from surface and fluid is pumped. When the differential pressure at the tool reaches a predetermined value, the ball and seat are pumped out of the tool. After the ball seat is pumped out, the sub allows unrestricted access from the tubing into the casing below the tubing string. This product is available in L80 material, with 4.7ppf, 2-3/8” EU 8RD threads.
The shear-out ball-seat sub can be furnished in a box x-pin configuration for applications where it is necessary to run additional tubing or completion equipment below the shear-out ball-seat sub. When the ball and ball seat are used, they are expelled during operation, so it is necessary to ensure they will safely pass through all equipment located below them.
- Wireline entry guide’s single piece construction increases ruggedness
- Located at the end of a tubing string provides assurance that wireline tools may re-enter the tubing string without hanging up
- Longer shear screws allow pretesting at ambient temperature prior to running the tool,Back-up O-ring ensures seal integrity