# US 2025/0146366 A1 · Resettable Latch Assembly With Energy Transfer Line(s) Feed Through > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2025/0146366 A1 - Document ID: US20250146366A1 - Status: Published application - Kind: A1 - Application number: 18/500,822 - Filed: 2023-11-02 - Published: 2025-05-08 - Earliest claimed: 2023-11-02 - Assignees: Halliburton Energy Services, Inc. - Applicants: Halliburton Energy Services, Inc. - Inventors: Tyson H. Eiman; Gustavo Dias De Casto Cervo; Kevin Harrell; Jason P. Witte; Gary J. Geoffroy - Web page: https://patentgrep.com/patent/US20250146366A1 ## CPC - E21B 17/04: between rod {or the like} and bit or between rod and rod {or the like} - E21B 17/023: {Arrangements for connecting cables or wirelines to downhole devices} - E21B 17/06: Releasing-joints, e.g. safety joints - E21B 23/02: for locking the tools or the like in landing nipples or in recesses between adjacent sections of tubing (E21B23/03 - E21B23/06 take precedence) - E21B: EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS ## Abstract A variety of methods and apparatus are disclosed, including, in one embodiment, resettable latch assembly for latching downhole to a mating mandrel, comprising: a mandrel; a latch collet disposed on the mandrel, wherein the latch collet is radially flexibly with respect to the mating mandrel; and an energy transfer line extending a length of the mandrel; wherein the resettable latch assembly is latchable, releasable, and relatchable to the mating mandrel with translational movement. ## Claims ### Claim 1 A resettable latch assembly for latching downhole to a mating mandrel, comprising: a mandrel; a latch collet disposed on the mandrel, wherein the latch collet is radially flexibly with respect to the mating mandrel; and an energy transfer line extending a length of the mandrel; wherein the resettable latch assembly is latchable, releasable, and relatchable to the mating mandrel with translational movement. ### Claim 2 (depends on 1) The resettable latch assembly of claim 1, wherein the mandrel is a lower mandrel, and wherein the resettable latch assembly further comprises: an upper mandrel coupled to the lower mandrel with upper shear members; a latch mandrel coupled to the upper mandrel that is disposed on the lower mandrel and at least partially extends between the latch collet and the lower mandrel; and a sleeve disposed on the lower mandrel and coupled to the lower mandrel with shear members, wherein the sleeve comprises a collar engageable with the latch collet to limit downward movement of the latch collet on the lower mandrel. ### Claim 3 (depends on 2) The resettable latch assembly of claim 2, wherein lower mandrel comprises a body lock ring engagement with the upper mandrel. ### Claim 4 (depends on 2) The resettable latch assembly of claim 2, wherein the lower mandrel comprises a collar spaced on the lower mandrel from the sleeve. ### Claim 5 (depends on 2) The resettable latch assembly of claim 2, wherein the collar of the sleeve is positionable under the latch mandrel to support fingers of the latch mandrel locking the latch collet to the mating mandrel. ### Claim 6 (depends on 1) The resettable latch assembly of claim 1, wherein the resettable latch assembly further comprises: a landing shoulder disposed on the mandrel below the latch collet; and a locking collet disposed on the mandrel and axially moveable with respect to the mandrel from a locked position to an unlocked position, wherein, in the locked position, the locking collet is configured to remain axially stationary with respect to the mandrel. ### Claim 7 (depends on 6) The resettable latch assembly of claim 6, wherein the locking collet and the latch collet are a unitary member with the latch collet positioned below the locking collet. ### Claim 8 (depends on 6) The resettable latch assembly of claim 6, wherein the latch collet is positioned below the locking collet, and wherein the locking collet comprises a collet shoulder that extends inward from the locking collet, and wherein the mandrel comprises a first mandrel groove and a second mandrel groove, and wherein the locking collet is in the locked position when the collet shoulder is positioned in either of the first mandrel groove or the second mandrel groove. ### Claim 9 (depends on 6) The resettable latch assembly of claim 6, wherein the latch collet is positioned uphole from the locking collet, and wherein the landing shoulder is disposed on an uphole end of the locking collet, ands wherein the locking collet comprise a sleeve locking feature that engages a mandrel locking feature to lock the locking collet in the locked position. ### Claim 10 (depends on 9) The resettable latch assembly of claim 9, further comprising a snap ring disposed on the mandrel uphole from the latch collet that is engageable with the latch collet to restrict axial movement of the latch collet with respect to the mandrel in an uphole direction. ### Claim 11 (depends on 1) The resettable latch assembly of claim 1, wherein the mandrel is a lower mandrel, and wherein the resettable latch assembly further comprises: an upper mandrel coupled to the lower mandrel with upper shear members; a latch mandrel coupled to the upper mandrel that is disposed on the lower mandrel and at least partially extends between the latch collet and the lower mandrel, wherein the latch mandrel comprises a collar below the latch collet, wherein the latch mandrel is under the latch mandrel to support fingers of the latch mandrel locking the latch collet to the mating mandrel; and a spring disposed on the lower mandrel below the latch mandrel; and a shear ring disposed on the lower mandrel below the spring that limits downward movement of the spring, wherein the shear ring is coupled to the lower mandrel with lower shear members. ### Claim 12 (depends on 1) The resettable latch assembly of claim 1, wherein the latch collet comprises a plurality of slots to define a plurality of fingers, and wherein the latch collet is engageable with the mating mandrel with the plurality of fingers to latch the resettable latch assembly to the mating mandrel. ### Claim 13 (depends on 1) The resettable latch assembly of claim 1, wherein the mandrel comprises a latch support feature that is positionally behind the fingers at a collet engagement surface to latch the resettable latch assembly to the mating mandrel. ### Claim 14 (depends on 13) The resettable latch assembly of claim 13, wherein the latch support feature comprises a radial extension from the mandrel. ### Claim 15 (depends on 1) The resettable latch assembly of claim 1, wherein the energy transfer line comprises a fiberoptic line. ### Claim 16 A method for latching to a mating mandrel, comprising: running a resettable latch assembly into the mating mandrel positioned in a borehole, wherein the resettable latch assembly comprises an energy transfer line; engaging a collet engagement surface of the resettable latch assembly with a mating engagement surface of the mating mandrel to latch to resettable latch assembly in the mating mandrel; disengaging the resettable latch assembly from the mating mandrel by moving the resettable latch assembly uphole without rotation; and moving the resettable latch assembly downhole to reengage the collet engagement surface of the resettable latch assembly with the mating engagement surface of the mating mandrel to latch the resettable latch assembly in the mating mandrel; coupling the energy transfer line to a downhole energy transfer line; and supporting fingers of the latch mandrel at the collet engagement surface to lock the latch mandrel on the mating mandrel. ### Claim 17 (depends on 16) The method of claim 16, wherein moving the resettable latch assembly downhole to reengage the collet engagement surface of the resettable latch assembly with the mating engagement surface further comprises landing a lower mandrel of the resettable latch assembly in the mating mandrel to limit downward movement of the resettable latch assembly and then applying additional downward force to the resettable latch assembly such that upper shear members holding the lower mandrel to an upper mandrel of the resettable latch assembly are sheared. ### Claim 18 (depends on 17) The method of claim 17, wherein the supporting fingers of the latch mandrel comprises, after the upper shear members are sheared, moving the upper mandrel further downhole to cause a latch mandrel associated with the upper mandrel and that is disposed on the lower mandrel to also move downhole behind the fingers of the latch mandrel to support the fingers at the collet engagement surface. ### Claim 19 (depends on 17) The method of claim 17, wherein a collar of a sleeve is positioned on the lower mandrel downhole from the latch collet to limit downward movement of the latch collet. ### Claim 20 (depends on 19) The method of claim 19, wherein the method further comprises, after the supporting the fingers of the latch mandrel, applying uphold force to the resettable latch assembly to shear lower shear members holding the sleeve to the lower mandrel and then moving the resettable latch assembly uphole to remove the resettable latch assembly from the borehole.