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Drag Block Tubing Anchor


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7”Drag Block Tubing Anchor
 
The Tubing Anchor is a retrievable double grip tubing anchor designed to anchor the tubing string in tension or in compression. When installed with the proper amount of tubing tension, the Tubing Anchor prevents movement of the tubing string during rod pumping operations. This in turn will extend the life of the pump, rods and tubing, as well as decrease pumping costs and prevent the tubing and rods from failing in case of parted tubing.
 
Operating Instructions
 
Operation Procedures Running & Setting
 
1. Install the anchor in the tubing string, above or below the pump.
 
2. Run the anchor to the desired depth and space out for the final required tension.
 
3. Rotate the tubing to the left to set the anchor catcher. The number of turns required will depend on the casing weight. The tubing will torque up when the slips have set.
 
4. To make sure that the anchor slips are solidly engaged with the casing, hold left hand torque on the tubing and set down 4500 to 6500 kg (10,000-14,500 lbs.) of tubing weight. Pick up and set down several times to be sure the anchor slips are properly set in the casing. Pick up to install the dog nut and land the tubing. Make sure the tubing is in sufficient tension when it is landed.
 
Note: Unless otherwise specified, anchors are furnished with a total of 22,240 kg (50,000 lbs.) Secondary release shears. Shear value may be easily changed in the field.
 
Retrieving
 
1. Lower the tubing to release tension and rotate to the right while working the tubing up and down slightly.
2. Should the anchor fail to release with normal procedures, an upward pull of the tubing string weight plus the total value of the shear pins will release the anchor catcher.

Technical Data
 
Suitable   Casing Recommended
Hole Size(inches)
Gage
OD(inches)
Max
OD(mm)
Tool
ID(mm)
Thread
connection
Size(inches) Weight(lbs/ft)
7” 17.0-32.0 6.094-6.538 5.570 146 76 3-1/2EUE

 

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