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Product description
Stab-in Float Shoe
1. Prior to the installation of the stab-in float shoe or collar on the casing string ensure that the receptacle bore in the piece of float equipment is covered with the coating of grease that has been applied prior to leaving the factory. If the grease has been removed apply coating of grease prior to installing in the casing string.
2. Run casing to depth as required.
3. Install stab-in stinger on end of drill pipe. Inspect Three (3)sealing external o-rings for cuts and tears. Should any of the five o-rings be damaged replace using a blunt object to remove the o-rings from the stinger and replace with the o-rings provided in the stab-in seal kits. Apply coating of grease to the individual o-rings prior to installing on the stinger. Apply additional coating of grease to stinger after the installation ofthe o-rings has been completed.
4. Install drill pipe centralizers on drill pipe before running the drill pipe down the hole. Install one drill pipe centralizer 6 to 7 feet / 1.8 to 2.0 meters above the stinger. The second drill pipe centralizer should be installed 18 to 20 feet / 5.4 to 6.0 meters above the stinger. The drill pipe centralizer should be installed over stop collars to allow for complete free rotation of the centralizers on the drill pipe. Additional drill pipe centralizers can be installed further up the drill string for additional centralization.
5. The prepared drill pipe can now be lowered down the casing. As the drill pipe nears the stab-in float equipment slow the rate of decent to a maximum of 1 foot per 3 seconds / .3 meter per seconds. As the stinger enters the float equipment careful observation of the weight indicator is required. When the weight indicator approaches a weight reduction of 1000 lbs / 450 kgs. the lowering should be stopped as the stinger will have entered and bottomed out in the float equipment.
6. Circulation may now begin with cementing operations following the circulation operations.
7. After circulation is complete begin running cement through the drill pipe. After all the cement has been displaced into the drill pipe the drilling-pipe wiper plug can be released so as to place it directly on top of the cement. Pump out the remaining cement that is in the lines followed by the displacement fluid. Continue to pump the displacement fluid into the drill pipe. As the amount of fluid required to displace the cement has been pumped slow the pumping rate to 3 to 5 barrels per minute as the plug reaches the stab-in float collar / float shoe. Bump the plug and increase pressure to maximum of 1000 PSI over pumping pressure.
8. Maintain this pressure and begin to withdraw the stinger from the float collar / float shoe. RIGHT HAND rotation of the stinger while picking up slowly on the drill pipe. The weight indicator should be monitored until a weight increase back to the original weight of the drill pipe is obtained. As the stinger exits the float equipment and the drill pipe is retracted from the float equipment carefully monitor the weight indicator to ensure that complete disengagement from the float equipment has taken place.
9. A drop of the internal drill pipe pressure will occur once the stinger has been removed from the stab-in receptacle. Also circulation within the casing may now be performed.
Operating instructions
Product description
Stab-in Float Shoe
1. Prior to the installation of the stab-in float shoe or collar on the casing string ensure that the receptacle bore in the piece of float equipment is covered with the coating of grease that has been applied prior to leaving the factory. If the grease has been removed apply coating of grease prior to installing in the casing string.
2. Run casing to depth as required.
3. Install stab-in stinger on end of drill pipe. Inspect Three (3)sealing external o-rings for cuts and tears. Should any of the five o-rings be damaged replace using a blunt object to remove the o-rings from the stinger and replace with the o-rings provided in the stab-in seal kits. Apply coating of grease to the individual o-rings prior to installing on the stinger. Apply additional coating of grease to stinger after the installation ofthe o-rings has been completed.
4. Install drill pipe centralizers on drill pipe before running the drill pipe down the hole. Install one drill pipe centralizer 6 to 7 feet / 1.8 to 2.0 meters above the stinger. The second drill pipe centralizer should be installed 18 to 20 feet / 5.4 to 6.0 meters above the stinger. The drill pipe centralizer should be installed over stop collars to allow for complete free rotation of the centralizers on the drill pipe. Additional drill pipe centralizers can be installed further up the drill string for additional centralization.
5. The prepared drill pipe can now be lowered down the casing. As the drill pipe nears the stab-in float equipment slow the rate of decent to a maximum of 1 foot per 3 seconds / .3 meter per seconds. As the stinger enters the float equipment careful observation of the weight indicator is required. When the weight indicator approaches a weight reduction of 1000 lbs / 450 kgs. the lowering should be stopped as the stinger will have entered and bottomed out in the float equipment.
6. Circulation may now begin with cementing operations following the circulation operations.
7. After circulation is complete begin running cement through the drill pipe. After all the cement has been displaced into the drill pipe the drilling-pipe wiper plug can be released so as to place it directly on top of the cement. Pump out the remaining cement that is in the lines followed by the displacement fluid. Continue to pump the displacement fluid into the drill pipe. As the amount of fluid required to displace the cement has been pumped slow the pumping rate to 3 to 5 barrels per minute as the plug reaches the stab-in float collar / float shoe. Bump the plug and increase pressure to maximum of 1000 PSI over pumping pressure.
8. Maintain this pressure and begin to withdraw the stinger from the float collar / float shoe. RIGHT HAND rotation of the stinger while picking up slowly on the drill pipe. The weight indicator should be monitored until a weight increase back to the original weight of the drill pipe is obtained. As the stinger exits the float equipment and the drill pipe is retracted from the float equipment carefully monitor the weight indicator to ensure that complete disengagement from the float equipment has taken place.
9. A drop of the internal drill pipe pressure will occur once the stinger has been removed from the stab-in receptacle. Also circulation within the casing may now be performed.
Operating instructions
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