# US 12,215,562 B2 · Seal element with profiled surface for a downhole tool in a wellbore > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,215,562 B2 - Document ID: US12215562B2 - Status: Granted - Kind: B2 - Application number: 18/494,047 - Filed: 2023-10-25 - Published: 2024-11-21 - Granted: 2025-02-04 - Earliest claimed: 2023-05-17 - Assignees: Halliburton Energy Services, Inc. - Applicants: Halliburton Energy Services, Inc. - Inventors: Shobeir Pirayeh Gar; Xiaoguang Allan Zhong; Michael Linley Fripp - Web page: https://patentgrep.com/patent/US12215562B2 ## CPC - E21B 33/1208: {characterised by the construction of the sealing or packing means (E21B33/1277 takes precedence)} - E21B 33/1216: {Anti-extrusion means, e.g. means to prevent cold flow of rubber packing} - E21B: EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS ## Abstract 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. ## Claims ### Claim 1 A seal element for providing a seal in a wellbore, the seal element comprising: a bonded seal to be formed within a gland of a sleeve, the bonded seal with a profiled surface that extends beyond a surface of the sleeve, wherein the profiled surface of the bonded seal is to face a surface of a housing to form a seal, wherein the bonded seal with the profiled surface has an asymmetric shape that comprises a back angle that is an acute angle defined by the profiled surface that extends in a straight line to reach a bottom surface of the gland to form a void within the gland, wherein a volume of the void divided by a volume of the gland defines a void index between 0.25 and 0.45, the void index having a variance of +/−10%. ### Claim 2 (depends on 1) The seal element of claim 1, wherein the asymmetric shape comprises a front angle that is different than the back angle. ### Claim 3 (depends on 2) The seal element of claim 2, wherein the front angle comprises a first angle at zero degrees and a second angle that is an acute angle. ### Claim 4 (depends on 3) The seal element of claim 3, wherein the second angle is 45 degrees, with a variance of +/−10%. ### Claim 5 (depends on 1) The seal element of claim 1, wherein the bonded seal comprises rubber. ### Claim 6 (depends on 1) The seal element of claim 1, wherein the back angle is between 8 and 28 degrees, with a variance of +/−10%. ### Claim 7 (depends on 6) The seal element of claim 6, wherein the void index is between 0.30 and 0.35, with a variance of +/−10%. ### Claim 8 (depends on 1) The seal element of claim 1, wherein the void is formed within the gland between a side surface of the bonded seal with the profiled surface having the back angle, and a side surface of the gland that is disposed substantially perpendicular to the bottom surface of the gland. ### Claim 9 (depends on 8) The seal element of claim 8, wherein the void index is between 0.30 and 0.35, with a variance of +/−10%. ### Claim 10 (depends on 8) The seal element of claim 8, wherein the void is filled with a seal backup material. ### Claim 11 (depends on 1) The seal element of claim 1, wherein the void index is between 0.30 and 0.35, with a variance of +/−10%. ### Claim 12 A method for forming a seal element in a sleeve for operation in a wellbore, the method comprising: molding rubber into a seal gland of the sleeve, wherein the rubber is to extend beyond a side of the sleeve where the seal gland is located; and machining a surface of the rubber to profile the seal element with a profiled surface having an asymmetric shape that comprises a back angle that is an acute angle defined by the profiled surface that extends in a straight line to reach a bottom surface of the gland to form a void within the gland, wherein a volume of the void divided by a volume of the gland defines a void index between 0.25 and 0.45, the void index having a variance of +/−10%. ### Claim 13 (depends on 12) The method of claim 12, wherein a front angle of the profiled surface is different than the back angle. ### Claim 14 (depends on 13) The method of claim 13, wherein the front angle comprises a first angle at zero degrees and a second angle at an acute angle. ### Claim 15 (depends on 12) The method of claim 12, wherein the back angle is between 8 and 28 degrees, with a variance of +/−10%. ### Claim 16 (depends on 15) The method of claim 15, wherein the void index is between 0.30 and 0.35, with a variance of +/−10%. ### Claim 17 A downhole tool to be positioned in a wellbore, the downhole tool comprising: a sleeve to cyclically support a load, the sleeve comprising, at least one seal element to provide a seal, wherein the at least one seal element comprises, a bonded seal with a profiled surface that extends beyond a surface of the sleeve that includes the bonded seal with the profile surface formed in a gland of the sleeve, 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 the profiled surface has an asymmetric shape that comprises a back angle that is an acute angle defined by the profiled surface that extends in a straight line to reach a bottom surface of the gland to form a void within the gland, wherein a volume of the void divided by the volume of the gland defines a void index between 0.25 and 0.45, the void index having a variance of +/−10%. ### Claim 18 (depends on 17) The downhole tool of claim 17, wherein the asymmetric shape comprises a front angle that is different than the back angle. ### Claim 19 (depends on 18) The downhole tool of claim 18, wherein the front angle comprises a first angle at zero degrees and a second angle at 45 degrees, with a variance of +/−10%, and wherein the back angle is between 8 and 28 degrees, with a variance of +/−10%. ### Claim 20 (depends on 17) The downhole tool of claim 17, wherein the void index is between 0.30 and 0.35 with a variance of +/−10%.