Halliburton Energy Services, Inc.

Shobeir Pirayeh Gar

Xiaoguang Allan Zhong

Daniel Keith Moeller

Chee Sing Kelvin Loh

Yian Zhao

Michael Linley Fripp

Jalpan Piyush Dave

David Allen Dockweiler

Abdolreza Gharesi

Various seals for wellbore systems include a partially bonded seal configured to be actuatable to provide a fluid seal between a first conduit and a second conduit positioned within a wellbore. The partially bonded seal may comprise a hanger body and a sealing element, the sealing element positioned in contact with and arranged to encircle an outer surface of the hanger body for some longitudinal distance along the hanger body. A first portion of the sealing element adjacent to the outer surface of the hanger is bonded to the outer surface of the hanger body, and a second portion of the sealing element adjacent to the outer surface of the hanger body is not bonded to the outer surface of the hanger body.

Partially bonded seals for well systems

A sealing assembly, a well system, and a method are disclosed. The sealing assembly, in one aspect, includes a mandrel and a sealing element positioned about the mandrel, the sealing element having a radial inner and outer surface. The sealing assembly, according to this aspect, further includes a deployable control band positioned radially outside the radial inside surface, a first collar sleeve coupled proximate a first end of the sealing element, and a second collar sleeve coupled proximate a second end of the sealing element, wherein the first and second collar sleeves are configured to axially translate relative to one another along to move the sealing element between a radially retracted state a radially expanded state, and further wherein the deployable control band is configured to deploy from an undeployed state to a deployed state as the sealing element moves from the radially retracted state to the radially expanded state.

Sealing assembly employing a deployable control band

Embodiments of a system, method, and apparatus for a liner hanger installed into a wellbore are disclosed herein. In one embodiment, an apparatus comprises a liner hanger to be positioned within a wellbore, wherein the liner hanger comprises, at least one spike to secure the liner hanger to a casing within the wellbore, wherein an outer diameter of the at least one spike includes a seal recess; and a seal object to be positioned in the seal recess to form a seal with the casing when the liner hanger is hanging on the casing.

Self-energizing seal for expandable liner hanger

A seal element for providing a seal in a wellbore comprises a bonded seal with profiled surface that extends beyond a surface of a sleeve that includes the bonded seal with the profile surface, wherein the profiled surface of the bonded seal is to face a surface of a housing to form the seal, wherein the bonded seal with profiled surface has an asymmetric shape that comprises a back angle that is an acute angle.

Seal element with profiled surface for a downhole tool in a wellbore

A frac plug defines a central passage therethrough and is movable from an unset to a set position in a well casing. A single slip ring assembly is supported by the bottom shoe and a slip wedge is positioned in slidable relationship to the single slip ring assembly. A sealing element is supported by the slip wedge. A deformable ball seat is movable axially relative to the sealing element and the sealing element is expandable radially outwardly to engage and seal against the well casing upon the application of a force applied thereto by the deformable ball seat.

Single slip frac tool

A frac plug has a bottom shoe, a single slip ring supported by the bottom shoe, a slip wedge positioned above the slip ring and axially movable relative to the slip wedge, a radially outwardly expandable sealing element supported by the slip wedge and a deformable backup shoe fixed to the sealing element. The deformable backup shoe has a cap covering at least a portion of a top surface of the sealing element and an outer leg extending along at least a portion of an outer surface of the sealing element. A ball seat is insertable into the radially outwardly expandable sealing element.

A method and apparatus according to which a backup ring is radially expanded to prevent, or at least reduce, extrusion of a sealing element. The backup ring includes an inner ring segment and an outer ring segment. The inner ring segment defines opposing first and second end portions. The outer ring segment defines opposing third and fourth end portions. The third end portion of the outer ring segment telescopically receives, and overlaps, the first end portion of the inner ring segment. Radially expanding the backup ring includes sliding the backup ring up an external tapered surface of a wedge ramp. Sliding the backup ring up the external tapered surface of the wedge ramp telescopes the first end portion of the inner ring segment outwardly from the third end portion of the outer ring segment.

Radially expandable anti-extrusion backup ring

A valve assembly employed in subterranean wellbore systems includes a flapper member biased to a closed position by a pair of opposed wire springs. The wire springs provide sufficient torque to ensure robust operation of the flapper member and permit sufficient fluid flow through the limited space available in the valve assembly. A pair of symmetrical pair of wire springs may be robustly manufactured and individually installed without unnecessary accumulation of manufacturing tolerances or errors, thereby providing predictable torque levels to the flapper member. The wire springs may be secured in blind holes or other features defined in a circumferential surface of the flapper member to ensure the springs remain engaged with the flapper member throughout the operation of the valve assembly.

Robustness of flapper valve open/close

A downhole tool including an insertion member arranged to insert into and form an annular seal with a receiving member using an annular seal assembly. The seal assembly includes a compliant metal spring and a separate metal cover overlapping at least a portion of an outside of the spring, wherein the cover and spring extend radially outward from the downhole tool so as to be compressed when the insertion member is inserted within the receiving member to form an annular metal-to-metal seal between the insertion member and the receiving member. A method of coupling the downhole tool and the receiving member in a well includes inserting the insertion member of the downhole tool into the receiving member and energizing and forming an annular metal-to-metal seal by compressing the seal assembly between the insertion member and the receiving member when inserting the insertion member into the receiving member.

Growing community of inventors

Carrolton, TX, United States of America

Shobeir Pirayeh Gar