# US 11,111,740 B2 · System and method for pressure isolation and relief across a threaded connection > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,111,740 B2 - Document ID: US11111740B2 - Status: Granted - Kind: B2 - Application number: 16/420,389 - Filed: 2019-05-23 - Published: 2020-11-26 - Granted: 2021-09-07 - Earliest claimed: 2019-05-23 - Assignees: Baker Hughes Oilfield Operations LLC - Applicants: Ronald J. Garr; Darrell D. Jones; Dale W. Schubert; Daniel S. McWherter - Inventors: Ronald J. Garr; Darrell D. Jones; Dale W. Schubert; Daniel S. McWherter - Web page: https://patentgrep.com/patent/US11111740B2 ## CPC - E21B 17/18: Pipes provided with plural fluid passages {(E21B17/203 takes precedence)} - E21B 17/04: between rod {or the like} and bit or between rod and rod {or the like} - E21B 47/10: Locating fluid leaks, intrusions or movements - E21B: EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS ## Abstract A downhole system includes a first tubular having a terminal end including a first connector portion, an inlet, an inner surface, an outer surface, and a first conduit extending between the inner surface and the outer surface fluidically exposed at the terminal end. A second tubular including a terminal end section having a second connector portion coupled to the first connector portion to form a joint, an inner surface section, an outer surface section, and a second conduit extending between the inner surface section and the outer surface section and fluidically exposed at the terminal end section. The first conduit is fluidically connected to the second conduit across the joint. ## Claims ### Claim 1 A downhole system comprising: a first tubular including a terminal end having a first threaded connector portion, an inlet, an annular wall having an inner surface and an outer surface, and a first conduit extending within the wall between the inner surface and the outer surface fluidically exposed at the terminal end; and a second tubular including a terminal end section having a second threaded connector portion threadably coupled to the first threaded connector portion to form a joint, an annular wall section having an inner surface section and an outer surface section, and a second conduit extending within the wall section between the inner surface section and the outer surface section and fluidically exposed at the terminal end section, wherein the first conduit is circumferentially misaligned and fluidically connected to the second conduit across the joint. ### Claim 2 (depends on 1) The downhole system according to claim 1, wherein the first threaded connector portion coupled to the second threaded connector portion maintains an annular chamber between the terminal end and the terminal end section. ### Claim 3 (depends on 1) The downhole system according to claim 1, wherein the terminal end of the first tubular includes an annular chamber, the first conduit including an outlet fluidically exposed to the annular chamber and a relief portion formed about the outlet. ### Claim 4 (depends on 3) The downhole system according to claim 3, wherein the first tubular includes a torque shoulder defining, at least in part, an outer annular wall and a passage extending through the outer annular wall fluidically connected with the annular chamber. ### Claim 5 (depends on 4) The downhole system according to claim 4, wherein the relief portion comprises a slot extending through the outer annular wall. ### Claim 6 (depends on 5) The downhole system according to claim 5, wherein the slot extends at an angle relative to a radius of the terminal end. ### Claim 7 (depends on 1) The downhole system according to claim 1, wherein the second tubular defines a coupler joining the first tubular to a third tubular. ### Claim 8 (depends on 1) The downhole system according to claim 1, wherein the inlet of the first conduit is fluidically exposed to a potential leak path. ### Claim 9 (depends on 1) The downhole system according to claim 1, wherein the first conduit passes through a torque shoulder. ### Claim 10 (depends on 1) The downhole system according to claim 1, wherein the second conduit is configured to relieve pressure to a surface of a formation. ### Claim 11 (depends on 1) The downhole system according to claim 1, wherein the first threaded connector portion is one of an externally threaded connector and an internally threaded connector and second threaded connector portion is the other of the externally threaded connector and an internally threaded connector. ### Claim 12 A resource exploration and recovery system comprising: a first system; a second system fluidically connected to the first system through a system of tubulars, the system of tubulars comprising: a first tubular including a terminal end having a first threaded connector portion, an annular wall including an inner surface and an outer surface, and a first conduit extending within the wall between the inner surface and the outer surface fluidically exposed at the terminal end; and a second tubular including a terminal end section having a second threaded connector portion threadably coupled to the first connector portion to form a joint, an annular wall section including an inner surface section and an outer surface section, and a second conduit extending within the wall section between the inner surface section and the outer surface section and fluidically exposed at the terminal end section, wherein the first conduit is circumferentially misaligned and fluidically connected to the second conduit across the joint. ### Claim 13 (depends on 12) The resource exploration and recovery system according to claim 12, wherein the first threaded connector portion coupled to the second threaded connector portion maintains an annular chamber between the terminal end and the terminal end section. ### Claim 14 (depends on 13) The resource exploration and recovery system according to claim 13, wherein the first tubular includes a torque shoulder defining, at least in part, an outer annular wall and a passage extending through the outer annular wall fluidically connected with the annular chamber. ### Claim 15 (depends on 12) The resource exploration and recovery system according to claim 12, wherein an inlet of the first conduit is fluidically exposed to a potential leak path. ### Claim 16 (depends on 12) The resource exploration and recovery system according to claim 12, wherein the second conduit is configured to relieve pressure to a surface of a formation. ### Claim 17 (depends on 12) The resource exploration and recovery system according to claim 12, wherein the terminal end of the first tubular includes an annular chamber, the first conduit including an outlet fluidically exposed to the annular chamber and a relief portion formed about the outlet. ### Claim 18 (depends on 12) The resource exploration and recovery system according to claim 12, wherein the first threaded connector portion is one of an externally threaded connector and an internally threaded connector and second threaded connector portion is the other of the externally threaded connector and an internally threaded connector. ### Claim 19 A method of transmitting pressure across a joint between two tubulars comprising: directing a flow of fluid through a first conduit extending between an inner surface and an outer surface within an annular wall of a first tubular; passing the flow of fluid from an outlet of the first conduit provided at a terminal end of the first tubular; guiding the flow of fluid across a threaded joint between the first tubular and a second tubular; and passing the flow of fluid into a second conduit that is annularly misaligned relative to the first conduit and which extends between an inner surface section and an outer surface section within an annular wall section of the second tubular to isolate a potential leak. ### Claim 20 (depends on 19) The method of claim 19, wherein guiding the fluid across the threaded joint includes passing the fluid across a joint including an internally threaded connector coupled to an externally threaded connector.