The ESS-ELL Model EL Sliding Sleeve is a downhole device, normally screwed into the production tubing, that allows communication between the tubing and the casing.

The closing sleeve includes bonded upper seals to ensure integrity of the seals for extended periods of time while downhole. They can also be of various elastomer types.

The upper sub has a selective "EF” landing nipple profile machined into it to allow for the proper shifting of the sleeve and to serve as a receptacle for other flow control devices, such as blanking plugs and separation tools.

The ESS-ELL Model ED-2 Shifting Tool is used to shift the EL Sliding Sleeve open and closed. The sleeve is designed so that normal wireline activities will not open or close the sleeve inadvertently. Upward jarring opens the sleeve and downward jarring closes the sleeve.

* Length may vary depending on the type of thread used.
** Maximum OD may be greater if special threads are used.

ASSEMBLY:

1. The Inner Sleeve is always assembled from the lower end of the Housing.
2. Replace the 0-rings on both the Upper and Lower Sub.
3. Replace the two Seats on the upper end of the inner Sleeve.
4. Apply Jet Lube AP-1 Grease (or equivalent) to the l.O. of the Housing, the entire surface of the Inner Sleeve, and the I.D. of the Upper and Lower Sub Ends.
5. Apply Lubon 404 Thread Sealant/lubricant to the stub acme» threads on the Upper and Lower Sub Ends.
6. Install the Upper Sub onto the Housing.
7. Insert the inner Sleeve into the Housing. Make sure it is shifted until it hits the stopping point of the Upper Sub.
8. Install the Lower Sub onto the Housing.
9. Shift the Inner Sleeve down the fully closed position.
10. Pressure test to 6,000 psi maximum.