# US 11,905,772 B2 · Methods and systems for disconnecting and reconnecting casing > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,905,772 B2 - Document ID: US11905772B2 - Status: Granted - Kind: B2 - Application number: 17/526,114 - Filed: 2021-11-15 - Published: 2022-03-10 - Granted: 2024-02-20 - Earliest claimed: 2019-01-24 - Assignees: Vertice Oil Tools Inc. - Applicants: Vertice Oil tools Inc. - Inventors: Mohamed Ibrahim Saraya - Web page: https://patentgrep.com/patent/US11905772B2 ## CPC - E21B 17/043: with locking means - E21B 23/00: Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells (setting of casings, screens or liners E21B43/10) - E21B 17/04: between rod {or the like} and bit or between rod and rod {or the like} - E21B 31/20: gripping internally, e.g. fishing spears - E21B 33/13: Methods or devices for cementing, for plugging holes, crevices or the like - E21B 33/14: for cementing casings into boreholes - E21B 34/063: {Valve or closure with destructible element, e.g. frangible disc (E21B34/103 takes precedence)} - E21B 34/103: {with a shear pin} - E21B 34/142: {unsupported or free-falling elements, e.g. balls, plugs, darts or pistons} - E21B: EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS ## Abstract A tool to remove portions of casing from a wellbore. A tool may include a bottom sub-assembly and casing that selectively detach from a sub-assembly. This may allow for tools and casing within the wellbore to be efficiently and effectively removed from the wellbore without having to cut tools down well. ## Claims ### Claim 1 A detachable tool for a wellbore comprising: a bottom sub assembly configured to be coupled to an upper sub assembly; the upper sub assembly including a support sleeve and an adjuster sleeve, the adjuster sleeve being decoupled from the bottom sub assembly based on downward linear movement of the support sleeve and inward movement of the adjuster sleeve, wherein a communication bypass is exposed after the downward linear movement of the support sleeve, wherein communication is established from a first area above an object positioned on the support sleeve to a second area below the object positioned on the support sleeve via the communication bypass after the downward linear movement of the support sleeve. ### Claim 2 (depends on 1) The detachable tool of claim 1, a port within the support sleeve allowing communication from inside the detachable tool to an area outside the detachable tool after the downward linear movement of the support sleeve. ### Claim 3 (depends on 2) The detachable tool of claim 2, wherein a collet of the adjuster sleeve is positioned on a second end of the adjuster sleeve. ### Claim 4 (depends on 2) The detachable tool of claim 2, wherein the port within the support sleeve is in communication with the communication bypass, the port being positioned below the object positioned across an inner diameter of the support sleeve. ### Claim 5 (depends on 2) The detachable tool of claim 2, wherein the port within the support sleeve is positioned above the object positioned across an inner diameter of the support sleeve. ### Claim 6 (depends on 1) The detachable tool of claim 1, wherein the adjuster sleeve is run in hole the adjuster sleeve is coupled to the support sleeve at a first location, and when pulled out of the hole the adjuster sleeve is coupled to the support sleeve at a second location. ### Claim 7 (depends on 6) The detachable tool of claim 6, wherein an outer diameter of the support sleeve outside diameter is variable. ### Claim 8 (depends on 6) The detachable tool of claim 6, wherein the support sleeve is coupled to the adjuster sleeve assembly via retaining pins after the support sleeve shears. ### Claim 9 (depends on 6) The detachable tool of claim 6, wherein the bottom sub assembly includes a no-go that limits the movement of the support sleeve after the support sleeve has sheared. ### Claim 10 (depends on 1) The detachable tool of claim 1, wherein the object blocks an inner diameter of the support sleeve. ### Claim 11 (depends on 1) The detachable tool of claim 1, wherein the support sleeve is retrieved as an integral part of the upper sub assembly. ### Claim 12 (depends on 1) The detachable tool of claim 1, further comprising: a retaining device configured to couple the support sleeve and the adjuster sleeve after the downward linear movement of the support sleeve. ### Claim 13 (depends on 12) The detachable tool of claim 12, wherein the retaining device extends from an inner diameter of the adjuster sleeve into an outer diameter of the support sleeve. ### Claim 14 A method for utilizing a detachable tool within a wellbore comprising: coupling an upper sub assembly to a bottom sub assembly; decoupling the upper sub assembly from the bottom sub assembly based on downward linear movement of a support sleeve and inward movement of an adjuster sleeve, wherein the upper sub assembly includes the support sleeve and the adjuster sleeve; exposing a communication bypass between the support sleeve and the adjuster sleeve after the downward linear movement of the support sleeve; and establishing communication from a first area above an object positioned on the support sleeve to a second area below the object positioned on the support sleeve via the communication bypass after the downward linear movement of the support sleeve. ### Claim 15 (depends on 14) The method of claim 14, further comprising: communicating fluid, via a port within the support sleeve, from inside the detachable tool to an area outside the detachable tool after the downward linear movement of the support sleeve. ### Claim 16 (depends on 15) The method of claim 15, wherein when the adjuster sleeve is run in hole the adjuster sleeve is coupled to the support sleeve at a first location, and when pulled out of the hole the adjuster sleeve is coupled to the support sleeve at a second location. ### Claim 17 (depends on 16) The method of claim 16, further comprising: retrieving the support sleeve as an integral part of the upper sub assembly. ### Claim 18 (depends on 16) The method of claim 16, wherein an outer diameter of the support sleeve varies in size between a proximal end of the support sleeve and a distal end of the support sleeve. ### Claim 19 (depends on 16) The method of claim 16, further comprising: coupling the support sleeve to the adjuster sleeve assembly via retaining pins after the support sleeve shears. ### Claim 20 A method for utilizing a detachable tool for a wellbore comprising: coupling an upper sub assembly to a bottom sub assembly; restricting rotational movement of the upper sub assembly and the bottom sub assembly in two directions; coupling an adjuster sleeve and a support sleeve together via a temporary coupling mechanism at a first location in a first mode, wherein the adjuster sleeve includes a shaft and a collet; coupling the adjuster sleeve and the support sleeve together via the collet at a second location in a second mode based on downward linear movement of the support sleeve and inward movement of the adjuster sleeve, wherein an outer diameter of the support sleeve includes a projection, the projection being configured to interface with a no-go on an inner diameter of the bottom sub assembly to limit the downward linear movement of the support sleeve.