E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 23/14 (2006.01) E21B 17/20 (2006.01) E21B 23/04 (2006.01) E21B 23/08 (2006.01) E21B 33/1295 (2006.01)
Patent
CA 2177947
The apparatus and method for injecting coiled tubing downhole includes a connector member disposed on the end of the coiled tubing and supporting a downhole tool. A packer member is releasably connected to the connector member. The packer member includes a pack-off element and slips for releasably engaging the outer pipe string through which the coiled tubing is being injected. Seals are provided on the packer member for engaging the outer circumferential surface of the coiled tubing. A fluid passageway extends through the connector member for communicating the packer member with the coiled tubing. Fluid pressure is applied through the flow bore of the coiled tubing. The fluid pressure is applied through the fluid passageway to actuate an actuator member in the packer member to set the pack- off element and slips. Thus, upon actuating the packer member, the annulus formed by the coiled tubing and outer pipe string is closed. Fluid is then applied from the surface into the annulus to support and stiffen the coiled tubing as the injector applies additional force to further inject the coiled tubing downhole. Upon the setting of the packer member, the packer member is also released from the connector member so that the connector member and downhole tool disposed on the end of the coiled tubing may be further injected downhole. The connector member includes a dual check valve in the fluid passageway which allows fluid passage to actuate the packer member and closes the fluid passage after the connector member is disconnected from the packer member. The connector member may also include a valve member which allows circulation down the flow bore of the coiled tubing. The packer member includes a valve for the passage of well fluids between the packer member and coiled tubing.
Browne Paul L.
Bullock Michael Dennis
Connell Michael L.
Hagen Karluf
Longbottom James Robert
Haliburton Company
Swabey Ogilvy Renault
LandOfFree
Coiled tubing apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Coiled tubing apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Coiled tubing apparatus will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1831849