Top drive casing system
View Patent ↗A torque head for gripping tubular members, in at least some aspects, has a housing, grip mechanism secured within the housing, the grip mechanism for selectively gripping a tubular member, the grip mechanism including at least one jaw selectively movable toward and away from a portion of a tubular member within the housing, the at least one jaw having mounted thereon slip apparatus for engaging the portion of the tubular member, the slip apparatus including die apparatus movably mounted to the at least one jaw, the die apparatus movable with respect to the at least one jaw so that relative movement of the tubular with respect to the torque head is possible to the extent that the die apparatus is movable.
1. An apparatus for making up casings, comprising:
a rotational device disposable above a rig floor;
a gripping member operatively connected to the rotational device, the gripping member having one or more radially extendable elements for gripping a first casing;
a torque measuring device for measuring torque developed within a threaded connection as the first casing is rotated into threaded engagement with a second casing;
a torque wrench coupled to and disposed above the torque measuring device; and
a controller for controlling the rotational device in response to a torque measured by the torque measuring device prior to an indication of shouldering between the threaded engagement of the first casing and the second casing.
2. The apparatus of claim 1 , further comprising a thread compensator coupled to the gripping member.
3. The apparatus of claim 2 , further comprising a fluid path through the thread compensator and the gripping member.
4. The apparatus of claim 1 , wherein the gripping member applies an axial force and a torsional force to the first casing.
5. The apparatus of claim 1 , wherein the rotational device is de-energized when the measured torque reaches a predetermined torque.
6. The apparatus of claim 1 , wherein the rotational device comprises a top drive.
7. The apparatus of claim 1 , wherein the torque measuring device is operatively located between the rotational device and the gripping member.
8. The apparatus of claim 1 , further comprising a joint make-up monitoring system.
9. The apparatus of claim 1 , wherein the gripping member comprises slips.
10. The apparatus of claim 1 , wherein the torque measuring device is a torque sub.
11. The apparatus of claim 1 , further comprising a fluid fill-up circulation tool connected to the gripping member.
12. The apparatus of claim 1 , wherein the rotational device includes a coupler operable to selectively transmit torque from the rotational device.
13. The apparatus of claim 12 , wherein the controller is operable to de-energize the coupler to adjust the torque from the rotational device.
14. The apparatus of claim 1 , further comprising a swivel.
15. A method for making a threaded connection between a first casing and a second casing on a rig, comprising:
providing a rotational device, a torque wrench, and a torque measuring device disposed below the torque wrench, each operatively connected to the rig;
providing a gripping member having radially movable gripping elements for gripping the first casing;
gripping the first casing with the gripping elements;
aligning the first casing with respect to the second casing;
operating the rotational device, thereby rotating the gripping member and the first casing and thereby inter-engaging the first and second casings;
measuring a torque developed at the inter-engaging first and second casings during make-up using the torque measuring device; and
controlling the rotational device to adjust the torque in response to the measured torque and prior to an indication of shouldering between the first and second casings.
16. The method of claim 15 , further comprising inserting a circulating tool into the first casing.
17. The method of claim 15 , wherein the torque measuring device is a torque sub.
18. The method of claim 15 , further comprising rotating the first casing after adjustment of the torque.
19. The method of claim 15 , further comprising de-energizing the torque prior to the indication of shouldering.
20. The method of claim 15 , further comprising continuing to make-up the inter-engaging first and second casings at the adjusted torque.