US 11,873,691 B2
Load anchor with sealing
Peter Wood, Aberdeen (GB); Neil Thomson, Aberdeen (GB); and Davidson Harman, Aberdeen (GB)
Assigned to SCHLUMBERGER TECHNOLOGY CORPORATION, Sugar Land, TX (US)
Appl. No. 17/618,024
Filed by Schlumberger Technology Corporation, Sugar Land, TX (US)
PCT Filed Jun. 9, 2020, PCT No. PCT/US2020/036803
§ 371(c)(1), (2) Date Dec. 10, 2021,
PCT Pub. No. WO2020/251940, PCT Pub. Date Dec. 17, 2020.
Claims priority of provisional application 62/861,614, filed on Jun. 14, 2019.
Prior Publication US 2022/0259934 A1, Aug. 18, 2022
Int. Cl. E21B 33/128 (2006.01); E21B 23/01 (2006.01); E21B 33/12 (2006.01); E21B 33/129 (2006.01)
CPC E21B 23/01 (2013.01) [E21B 33/128 (2013.01); E21B 33/1216 (2013.01); E21B 33/1292 (2013.01)] 20 Claims
OG exemplary drawing
 
17. A method, comprising:
forming a load anchor with an expandable mandrel, a sealing element disposed around the expandable mandrel, a plurality of radially expandable gripper members, and a plurality of beam springs positioned to act against the gripper members;
deploying the load anchor into a well tubing;
increasing pressure within the expandable mandrel to radially expand the expandable mandrel, thus radially expanding the radially expandable gripper members into engagement with the well tubing; and
protecting the sealing element against detrimental sliding motion with respect to the well tubing by providing the beam springs with engagement surfaces oriented to bias the radially expandable gripper members into more secure engagement with the well tubing upon axial loading of the expandable mandrel.