# US 12,180,800 B2 · Seal system, method, and borehole system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,180,800 B2 - Document ID: US12180800B2 - Status: Granted - Kind: B2 - Application number: 18/181,825 - Filed: 2023-03-10 - Published: 2024-09-12 - Granted: 2024-12-31 - Earliest claimed: 2023-03-10 - Assignees: Baker Hughes Oilfield Operations LLC - Applicants: Baker Hughes Oilfield Operations LLC - Inventors: Thomas Banditrat; Claudia Leon - Web page: https://patentgrep.com/patent/US12180800B2 ## CPC - E21B 33/10: in the borehole {(sealing the junction between main bore and laterals E21B41/0042)} - F16J 15/08: with exclusively metal packing - E21B: EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS - F16J: PISTONS {(specially adapted for dampers F16F9/32)}; CYLINDERS; SEALINGS ## Abstract A seal system, including a first member comprising a material having a first density and the member having portions of a first density, a second member configured to be mechanically connected to the first member, an compliance portion at the first member, the compliance portion comprising the same material density and the portion having a second density, the compliance portion positioned to make contact with the second member when mechanically connected to the second member. A method for creating a sealed structure including mechanically connecting the first and second members to one another, causing a deformation at a contact area between the compliance portion and the second member, and creating a seal at the deformation. A borehole system including a borehole in a subsurface formation, a string in the borehole, and a seal disposed within or as a part of the string. ## Claims ### Claim 1 A seal system, comprising: a first member comprising a material having a first density and the member having portions of a first density; a second member configured to be mechanically connected to the first member; a compliance portion at the first member, the compliance portion comprising the same material density and the portion having a second density created with at least one enclosed void disposed within the compliance portion, the compliance portion positioned to make contact with the second member when mechanically connected to the second member. ### Claim 2 (depends on 1) The system as claimed in claim 1, wherein the second density is a lower density. ### Claim 3 (depends on 1) The system as claimed in claim 1, wherein the second density is a higher density. ### Claim 4 (depends on 1) The system as claimed in claim 1, wherein the compliance portion plastically deforms against the second member when mechanically connected to the second member. ### Claim 5 (depends on 1) The system as claimed in claim 1, wherein the compliance portion resiliently deforms when mechanically connected to the second member. ### Claim 6 (depends on 1) The system as claimed in claim 1, wherein the compliance portion includes a void in the material thereof thereby reducing the compliance portion second density. ### Claim 7 (depends on 6) The system as claimed in claim 6, wherein the void is positioned, configured and dimensioned to dictate a deformation characteristic of the compliance portion. ### Claim 8 (depends on 6) The system as claimed in claim 6, wherein the void is spherical. ### Claim 9 (depends on 6) The system as claimed in claim 6, wherein the void is hexagonal polygon. ### Claim 10 (depends on 6) The system as claimed in claim 6, wherein the void is toroidal. ### Claim 11 (depends on 10) The system as claimed in claim 10, wherein the void is one of continuous or discontinuous. ### Claim 12 (depends on 10) The system as claimed in claim 10, wherein the toroid is one of circular or hexagonal cross sectional geometry. ### Claim 13 (depends on 1) The system as claimed in claim 1, wherein the mechanical connection is a thread. ### Claim 14 (depends on 1) The system as claimed in claim 1, wherein the first and second members are tubulars. ### Claim 15 (depends on 1) The system as claimed in claim 1, wherein the compliance portion creates a seal against the second member. ### Claim 16 (depends on 1) A borehole system comprising: a borehole in a subsurface formation; a string in the borehole; and a seal system as claimed in claim 1 disposed within or as a part of the string. ### Claim 17 A seal system, comprising: a first member comprising a material having a first density and the member having portions of a first density; a second member configured to be mechanically connected to the first member; a compliance portion at the first member, the compliance portion comprising the same material density and having a-void, the void being a chamber containing a resilient element in the material thereof thereby reducing the compliance portion second density, the compliance portion positioned to make contact with the second member when mechanically connected to the second member. ### Claim 18 (depends on 17) The system as claimed in claim 17, wherein the resilient element is a wave spring. ### Claim 19 (depends on 17) The system as claimed in claim 17, wherein the resilient element is a leaf spring. ### Claim 20 (depends on 1) A method for creating a sealed structure comprising: mechanically connecting the first and second members as claimed in claim 1 to one another; causing a deformation at a contact area between the compliance portion and the second member; and creating a seal at the deformation. ### Claim 21 (depends on 20) The method as claimed in claim 20, wherein the causing a deformation is deforming the compliance portion at the contact area.