Ramcharger Setting Tool

The Ramcharger Setting Tool is used to run and set Cement Retainers and Bridge Plugs on tubing or drill pipe. In addition to its setting function, the Ramcharger functions as a Snap Latch Seal Unit after setting a Cement Retainer.

When used to run a tubing set Bridge Plug, the bottom sub and seal of the Ramcharger are replaced with a cap.

Operation

It is recommended that the Ramcharger, Retainer/Bridge Plug assembly be run into the well at a moderate speed, as care must be taken to prevent right hand rotation from being transmitted to the Setting Tool. As a precaution, it is also recommended that the tubing be rotated to the left (counter clockwise) every 10 stands, until positive resistence is felt. This will ensure that accidental right hand rotation does not build up and cause the tool to set.

At setting depth, rotate the tubing to the right approximately 10 turns. This action frees the top slips, allowing them to expand against the casing wall. Tension is now pulled into the tubing to act against the slips.

Pull the amount of tension, over string weight, as indicated on the Ramcharger technical chart. This will firmly set the top slips, pack off the retainer and cause the bottom slips to set. Slack off an equivalent amount of weight, if available, onto the retainer and pull the required amount of tension into the retainer again. This will ensure the Retainer/Bridge Plug is securely and fully set.

If running a retainer only the tubing may be pressure tested while holding tension for the final time. This will also test the retainer's valve for proper closure.

To release the Ramcharger Setting Tool from the retainer, pick up to close the valve, and while holding slight tension apply 300 to 400 ft/lb of right hand torque to the tubing. This will shear the rotational lock screws and allow the latch to be disengaged from the retainer with 8 to 10 right hand turns. An alternate method is to rotate 4 to 5 turns to the right and pick up approximately 4,500 daN (10,000 lbs.) over tubing weight which allows the Snap Latch to snap out of the retainer.

After releasing from the retainer, the Setting Tool can be re-latched into the retainer with set down weight and removed with tension (approximately 4,500 daN - 10,000 lbs.). The Stinger Seal will remain in the Retainer Seal Bore as long as the snap out force is not exceeded. It should be expected that the snap in and snap out forces will decrease after repeated useage with the condition stabilizing at about 2,200 daN (5,000 lbs.) snap out force.

Address

Suite 7
4351 – 104 Avenue S. E.
Calgary, Alberta, T2C 5C6, Canada

Telephone / Fax

1.403.252.9230 (T)
1.403.252.9350 (F)

Email

info@protexcis.com