LOCK-SET Retriveable Packer

The Model Lock-Set Retrievable Casing Packer is a general purpose packer for production, injection, zone isolation, or remedial operations. It holds pressure from above or below while allowing the tubing to be placed in tension, compression, or in a neutr

INQUIRY PDF Format

Description

Description
The Model Lock-Set Retrievable Casing Packer is a general purpose packer for production, injection, zone isolation, or remedial operations. It holds pressure from above or below while allowing the tubing to be placed in tension, compression, or in a neutral condition.
The Lock-Set Retrievable Casing Packer is a Full Bore Double-Grip Retrievable Packer with an integral Unloader. Opposed, non-transferring dovetail Slips prevent movement of the Packer in either direction due to pressure differentials, while allowing landing of the tubing in tension, compression, or neutral. The Lock Segments serve as a re-leasable Lock Ring to maintain pack-off once the packer is set, and locks the Unloader in the closed position until the tool is released. The Split Lock and Control Segments allow the tool to be both set and released with right-hand rotation.
Operating Instructions
To Run and Set the Packer:

Hang the Packer to completely stretch it out be-fore starting in the hole. Immediately prior to running in, rotate the Drag Block Housing several turns to the left to make sure the Segments are functioning properly. Do not rotate the Drag Block Housing to the right as this will bind the Control Segments and prevent them from moving after reaching setting depth.
Upon reaching setting depth, slowly lower the packer while applying approximately two turns of right-hand rotation at the tool, until the tool takes weight. Set down a minimum of 6,000 lbs to initially set the Upper Slips. Lowering of the tool must take place while rotating for the tool to set properly.
To fully engage the Lower Slips, apply an upstrain against the tool:

size	Upstrain (lbs)
4 1/2”~7”	10,000~20,000
8 5/8”~9 5/8”	20,000~40,000

When the tubing is to be landed in tension, a strain greater than the landing strain should be applied during the setting operation.

To set the Upper Slips and pack-off the Packing Element system apply set-down weight:

size	Minimum Weight (lbs)
4 1/2”~5 1/2”	6,000
7”	10,000
8 5/8”~9 5/8”	15,000

NOTE: At this point in the setting procedure, if sufficient set-down weight is not available, such as in very shallow wells, the tool can be set and packed-off by left-hand rotation or spudding.

The tubing may now be hung in tension, compression or neutral.

To Release the Packer:
Apply an upstrain of approximately 3,000 to 6,000 lbs and rotate the tubing to the right from four to eight turns at the tool, until the tool moves up the hole. When releasing the Packer with pressure in favor of the tubing, rotate tubing to the right slowly enough to equalize before the Lower Slips disengage. Continue to rotate to the right several turns while moving up the hole to be certain the Slips are fully retracted.

Specifications
Casing		Setting Range		ID	Temp(°F)	Thread Box Up Pin Down
OD	WT	Min ID	Max ID	2.44	275(NBR)	2 7/8"-8RD EUE.
7	26-29	6.136	6.276	2.44	325(HNBR)	2 7/8"-8RD EUE.