EXTENDED REACH RETRIEVABLE SEAL BORE PACKER
MODEL: WC-ERSP , PRODUCT NO.: WC-20807
MODEL: W-ERDSP , PRODUCT NO.: WC-20808
The packer is also used in high temperature environments for hydro fracturing and gravel-packing operations. It is suitable for use in all types of sand control and production applications and is compatible with production gravel-packing tools and procedures. Its rugged design optimizes all critical performance parameters, including differential pressure and temperature rating, casing footprint, and internal sealing reliability.
The EXTENDED REACH RETRIEVABLE SEAL BORE PACKER is deployed on tubing or drill pipe and is hydraulically set / electrical wireline set by applying pressure to the setting tool. Retrieval is by means of an intervention tool. The ERSP packer is particularly suitable for Extended Reach Drilling (ERD) Wells. It is run with Wellcare Model WC-HSHK Running Tool and the retrieving of this packer is done independently from the tubing by means of Retrieving Tool, manipulated on a work string.
Benefits / Features
- Barrel-slip design distributes loadings, minimizing case stress.
- Torque-through feature eases installation of long assemblies in tortuous well path.
- Design has minimal sealing points, eliminating potential leak paths.
- Bi-directional case-carburized slips hold the packer securely against well pressures in all casing grades (including P110 and harder) from above and below.
- Threaded bottom subs are provided as a separate item for running gravel pack flow subs, seal bore extensions, or tubing tailpipe of varying types and sizes.
- High Pressure High Temperature Environments
- Deep Water Projects
- Open End Closed Holes
- Horizontal Deviated and Straight wells
- The Packer is run with Hydraulic Setting Tool on the drill pipe or tubing and lower to setting depth.
- Drop the appropriate size ball into the work-string. Let it fall to the bottom or pump it down at 1 to 1-1/2 bpm. Stop pump before ball hits and allow the ball to gravitate to the ball seat in the Hydro-Set Adapter Kit.
- Set the Packer according to the normal pressuring sequence for the Packer and Setting Tool combination in use. However, testing the Packer with pressure and tension should be done by means of the steps following.
- Pressure test the annulus by setting down 10 -15,000 lbs of tubing weight and apply annulus pressure to desired test pressure. In this position, the Latch is unsupported and can snap out
- DO NOT release from the Packer. Re-apply pressure to the tubing. The ID of the Release Sleeve is ported to the tubing and the applied tubing pressure will shift the Release Sleeve down again, supporting the Latch Fingers. If it becomes necessary, the Back-Up Ballcan be dropped and will locate on the Seat in the Connector Sub.
- After Packer setting is complete, pressure the Work-string further to shear the ball seat. Alternatively, this step may be postponed until after releasing from the Packer.
NOTE: The pressure required to shear the Shear Screws and shift the Release Sleeve depends on how many screws have been installed in Release Sleeve and what material the Shear Screws are used.
- Run the: WC-RT Retrieving Tool on the Work string or the tubing Put Set down weight 3000-5000 Lbs on The Packer, may be slickly rotated to the right to engage the collet of the Retrieving Tool under the supporting sleeve of the Packer.\
- PULL! In principle the packer should Release with a pull of 5-10 tons. In order to fully retrieve the Packer upward and down ward motion of retrieving string will help. Once the screws have sheared the support sleeve moves upwards freeing the support beneath the finger of the collet. Later can flex and detach itself from the thread linking it to the base of the Housing. On upward movement of the body of the packer the compression of the packing element is released and the slips retracted