E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 33/127 (2006.01) E21B 33/1295 (2006.01)
Patent
CA 2224668
The present invention is directed to a new and improved wellbore packing device for use in isolating zones within a subterranean wellbore and to methods for applying the packing device in a cased-hole application. The present invention is directed to a new and improved inflatable or external casing packer (ECP) for use in cased wellbores. A hybrid inflatable packing element design in an ECP is presented, having in a single-unit, anchoring and sealing sections for application in cased wellbores using a phase change inflation medium such as cement or epoxy ar the like. The present invention overcomes limitations of existing prior art ECP's since these prior art ECP's are not capable of providing both sealing and anchoring packing elements in a single unitized design in size and access restricted wellbores. The inflatable elements comprise a sealing section that uses a noncontinuously reinforced elastomeric element with anti-extrusion ribs at its ends. When filled with the inflation medium, a frictional, radial force sealingly engages the elastomeric element with casing wall. An anchoring section is also provided that uses a continuously ribbed elastomeric bladder element. The steel ribs on the surface of the elastomeric element engage in metal-to-metal contact with the casing wall as the inflation medium exerts a Frictional, radial force. Any trapped. wellbore fluid between the sections escapes via the pathway between the ribs. A method for use of the hybrid ECP is also disclosed. More specifically, a method for use of the hybrid inflatable packer is a cased hole environment with a phase change inflation media is presented.
Coronado Martin P.
Mody Rustom K.
Solari Mark C.
Baker Hughes Incorporated
Sim & Mcburney
LandOfFree
Method and apparatus for hybrid element casing packer for... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for hybrid element casing packer for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for hybrid element casing packer for... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-2036456