Running and setting SLR and SLRN Lock Mandrels and Flow Control devices
Otis® is a registered trademark of Halliburton
The Evolution SLR Running Tool is used to run and set SLR and SLRN Lock Mandrels. The tool can be set to locate either selectively or in the first nipple in the tubing.
For non-selective running, attach the required flow control device to the SLR Running Tool with the Lock Mandrel keys in the locked position. Lower the tools into the tubing, to the required depth. Once the Lock Mandrel engages with the nipple, put up to shear off the running tool, and retrieve.
When a Flow Control device is to be run selectively, the following procedure is followed. Attach the flow control device to the SLR Running Tool. Lower the tools into the tubing, to the required depth.
The running tool will hold the locking keys of the Flow Control device in the retracted position until the desired landing nipple is reached.
As the packing section of the Flow Control device passes through the seal bores section of the landing nipples, the resulting loss of weight will show on the weight indicator.
To set in an SLR Nipple (Otis®-Type R), pass through the nipple with the running tool. Once past, raise the running tool back up into the landing nipple.
This action causes a shift in the dogs on body of the running tool, causing locking keys on the Lock Mandrel to expand.
Set down the running tool again. The keys on the Lock Mandrel will locate and lock into the locking recess in the Landing Nipple. Jar down to set the Lock Mandrel firmly in place.
Jar up to shear the lower pin on the running tool. Retrieve the running tool from the well.
To set into an SLRN Bottom No-Go Landing Nipple, and if there is no landing nipple between the surface and the target nipple the running tool must be put into the control position by hand at surface.
The Lock Mandrel can also be tripped downhole on a SLR Nipple immediately above the target SLRN. Passing through the nipple above the target sets the dogs and keys on the Lock Mandrel in the expanded position, ready to be set as the tools enter the target nipple.
Setting down on the running tool will set the Lock Mandrel. Jar down to firmly set the tool, and then jar up to shear the lower pin.