Abstract: An apparatus (10) and method for securing a tubular (12) within another tubular or borehole (80), creating a seal across an annulus in a wellbore (80), and centralising or anchoring tubing within a wellbore. A sleeve (14) is arranged on a tubular body (12) to create a chamber (16) therebetween. A port (18) provides fluid access through the body to the chamber. The chamber is filled with a swellable material (20). Thus the sleeve can be morphed to secure it to a well bore wall by the use of fluid pressure and an activated swellable material, the swellable material being used to support the sleeve to maintain a seal between the sleeve and well bore wall to form an isolation barrier.
Abstract: A zonal isolation device (10; 20; 30; 300; 400; 500; 600) in the form of an active external casing packer is provided which includes a tubular section such as a casing or liner (1; 21; 31; 171; 203) arranged to be run into and secured within a larger diameter generally cylindrical structure such as an open borehole (163; 213). At least one sleeve member (3; 23; 33; 43; 173) is positioned on the exterior of the casing or liner and is sealed thereto and at least two deformable band members (201; 401, 403; 501) are provided around and are bonded to the outer circumference of the sleeve member. The sleeve member and the at least two deformable band members is/are expanded into place against the inner circumference of the open borehole by increasing the pressure within the sleeve member.
Type:
Grant
Filed:
May 27, 2010
Date of Patent:
December 22, 2015
Assignee:
META DOWNHOLE LIMITED
Inventors:
Peter Wood, Fraser Louden, Stuart Berry, Andrew John Gorrara, Duncan James Trinder
Abstract: A method of connecting a first tubular member to a second tubular member located in a wellbore, the second tubular member including an upper end portion which has a greater diameter than the diameter of the first tubular member, the method comprising: lowering the first tubular member into the wellbore until the first tubular member is located at least within the bore of the upper end portion of the second tubular member; and expanding the first tubular member until the first tubular member is sealingly connected to the second tubular member.
Type:
Grant
Filed:
October 22, 2010
Date of Patent:
December 16, 2014
Assignee:
Meta Downhole Limited
Inventors:
Neil Thomson, Peter Wood, Andrew Gorrara
Abstract: A downhole expandable liner hanger apparatus for extending the length of an existing tubular such as a casing or liner string is described. The apparatus comprises a tubular portion and a securing and/or sealing means for securing the tubular portion to the existing tubular such as a casing string to thereby extend the length of the existing tubular and preferably simultaneously provide a sealed coupling between the tubular portion and the existing tubular. A first part or a length of the tubular portion preferably comprises a first sidewall thickness and a second part or length of the tubular portion is located adjacent the first part, where the second part comprises a second sidewall thickness, said first sidewall thickness being less than the second sidewall thickness.
Type:
Grant
Filed:
April 13, 2007
Date of Patent:
October 23, 2012
Assignee:
Meta Downhole Limited
Inventors:
Andrew Gorrara, Peter Wood, Paul Hazel, Fraser Louden