Halliburton Energy Services, Inc.

Steve L Holden

Henry Eugene Rogers

Brock Wayne Watson

David Durward Szarka

Earl Don Webb

Steve Streich

A method of cementing a wellbore, comprising delivering a diversion and movable isolation tool into the wellbore and thereby at least partially isolating a first wellbore volume from a second wellbore volume, the second wellbore volume being uphole relative to the first wellbore volume, passing fluid through the diversion and movable isolation tool into the first wellbore volume, substantially discontinuing the passing of fluid through the diversion and movable isolation tool into the first wellbore volume, passing fluid through the diversion and movable isolation tool into the second wellbore volume. A diversion and movable isolation tool for a wellbore, comprising a body comprising selectively actuated radial flow ports, and a fluid isolation assembly, comprising one or more segments, each segment comprising a central ring and at least one tab extending from the central ring.

System and method for fluid diversion and fluid isolation

A plug release apparatus for use in a well bore, the apparatus having a canister, a liner plug, and a sub. The liner plug may be releasably attached to the canister via a first release mechanism. The sub may be releasably attached to the canister via a second release mechanism. The first release mechanism may be configured to release the liner plug from the canister at a first pressure and the second release mechanism may be configured to release the canister from the sub at a second pressure.

Plug release apparatus

An anchoring device for stopping movement of a sliding component in a mandrel or case is disclosed. The anchoring device includes an elastically deformable anchor seat and an elastically deformable anchor retainer insertable into the anchor seat. The anchor seat has a groove profile thereon which will mate with a groove profile on the mandrel in an anchoring position. The retainer is insertable into the anchor seat and will hold the anchor seat in the anchoring position.

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Fletcher, OK, United States of America

Steve L Holden