Remote operation of a rotating control device bearing clamp
A rotating control device can include a housing assembly, a body and a clamp device which releasably secures the housing assembly to the body. The clamp device can include a piston which radially displaces a clamp section. A well system can include a rotating control device which includes at least one seal which seals off an annulus between a body of the rotating control device and a tubular string which extends longitudinally through the rotating control device. The rotating control device can also include a piston which displaces longitudinally and selectively clamps and unclamps a housing assembly to the body.
1. A rotating control device, comprising:
a housing assembly;
a body;
a clamp device configured to releasably secure the housing assembly to the body, the clamp device including a piston configured to radially displace a clamp section; and
an unclamping device coupled between the piston and a sleeve, the unclamping device configured to radially displace the clamp section without a pressure differential being created across the piston, the sleeve configured to displace the unclamping device.
2. The rotating control device of claim 1 , wherein the piston is configured to radially displace the clamp section into latched engagement with a profile.
3. The rotating control device of claim 1 , wherein the clamp section comprises a continuous ring.
4. The rotating control device of claim 1 , wherein the clamp section comprises multiple collets.
5. The rotating control device of claim 1 , wherein the clamp section comprises multiple lugs.
6. The rotating control device of claim 1 , wherein the piston is annular shaped.
7. The rotating control device of claim 1 , wherein the piston is arranged to encircle a flow passage which extends longitudinally through the rotating control device.
8. The rotating control device of claim 7 , wherein the piston is configured to displace longitudinally when the clamp section is displaced radially.
9. The rotating control device of claim 1 , wherein the unclamping device is configured to threadedly engage the piston.
10. The rotating control device of claim 1 , further comprising a position sensor configured to sense a position of the piston.
11. The rotating control device of claim 1 , wherein the clamp section is locked into engagement with a profile when the body is internally pressurized.
12. A well system, comprising:
a rotating control device including:
at least one seal which seals off an annulus between a body of the rotating control device and a tubular string extending longitudinally through the rotating control device;
a piston configured to displace longitudinally and selectively clamp and unclamp a housing assembly to the body, wherein longitudinal displacement of the piston is configured to radially displace a clamp section; and
an unclamping device configured to radially displace the clamp section without a pressure differential being created across the piston, the unclamping device coupled between the piston and a sleeve configured to displace the unclamping device.
13. The well system of claim 12 , wherein the piston is configured to radially displace the clamp section into latched engagement with a profile.
14. The well system of claim 12 , wherein the clamp section comprises a continuous ring.
15. The well system of claim 12 , wherein the clamp section comprises multiple collets.
16. The well system of claim 12 , wherein the clamp section comprises multiple lugs.
17. The well system of claim 12 , wherein the clamp section is configured to lock into engagement with a profile when the body is internally pressurized.
18. The well system of claim 12 , wherein the piston is annular shaped.
19. The well system of claim 12 , wherein the piston is arranged to encircle a flow passage which extending longitudinally through the rotating control device.
20. The well system of claim 12 , wherein the unclamping device is configured to threadedly engage the piston.
21. The well system of claim 12 , further comprising a position sensor configured to sense a position of the piston.