# US 2014/0196900 A1 · Method and apparatus for sealing tubulars > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0196900 A1 - Document ID: US20140196900A1 - Status: Published application - Kind: A1 - Application number: 14/152,937 - Filed: 2014-01-10 - Published: 2014-07-17 - Earliest claimed: 2013-01-13 - Assignees: Weatherford/Lamb, Inc. - Applicants: Weatherford/Lamb, Inc. - Inventors: Eric M. TWARDOWSKI; Albert C. ODELL, II; Tuong Thanh LE - Web page: https://patentgrep.com/patent/US20140196900A1 ## CPC - E21B 33/14: for cementing casings into boreholes - E21B 7/208: {using down-hole drives (E21B7/203 and E21B7/206 take precedence)} - E21B 21/103: {Down-hole by-pass valve arrangements, i.e. between the inside of the drill string and the annulus (valves specifically for maintaining circulation of drilling fluid while connecting or disconnecting tubular joints E21B21/019)} - E21B 33/10: in the borehole {(sealing the junction between main bore and laterals E21B41/0042)} - E21B: EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS ## Abstract A method of controlling fluid flow between two tubulars includes disposing a sealing member in an annular area between two tubulars, wherein the two tubulars partially overlap; moving the sealing member to a lower position where it is not in contact with one of the tubulars, thereby allowing fluid flow through the annular area; and moving the sealing member to an upper position where it is in contact with both of the tubulars, thereby preventing fluid flow through the annular area. ## Claims ### Claim 1 A method of controlling fluid flow between two tubulars, comprising: disposing a sealing member in an annular area between partially overlapping two tubulars; moving the sealing member to a lower position where it is not in contact with one of the tubulars, thereby allowing fluid flow through the annular area; and moving the sealing member to an upper position where it is in contact with both of the tubulars, thereby preventing fluid flow through the annular area. ### Claim 2 (depends on 1) The method of claim 1, wherein the sealing member is moved in response to fluid pressure. ### Claim 3 (depends on 1) The method claim 1, wherein one of the tubulars includes a surface having a raised portion and a non-raised portion. ### Claim 4 (depends on 3) The method of claim 3, wherein the sealing member is in contact with the raised portion when it is in the upper position. ### Claim 5 (depends on 3) The method of claim 3, wherein the sealing member is not in contact with the non-raised portion when it is in the lower position. ### Claim 6 (depends on 1) The method of claim 1, further comprising biasing the sealing member in the upper position. ### Claim 7 A sealing assembly, comprising: a first tubular having a recess; a second tubular having a raised portion and partially overlapping the first tubular; a sealing member disposed in the recess and between the first tubular and the second tubular, wherein the sealing member is movable in the recess between a lower position and an upper position, where in the upper position, the sealing member is in contact with the raised portion to prevent fluid flow through between the tubulars, and where in the lower position, the sealing member is not in contact with the raised portion to allow fluid flow between the tubulars. ### Claim 8 (depends on 7) The sealing assembly of claim 7, further comprising a biasing member for biasing the sealing member in the upper position. ### Claim 9 (depends on 7) The sealing assembly of claim 7, wherein the sealing assembly comprises an elastomeric seal. ### Claim 10 (depends on 7) The sealing assembly of claim 7, wherein the sealing assembly comprises a FS seal. ### Claim 11 A valve arrangement in a tubular, comprising: a first one way valve configured to prevent fluid flow in the tubular in a first direction; and a second one way valve configured to prevent fluid flow in the tubular in a second, opposite direction. ### Claim 12 (depends on 11) The valve arrangement of claim 11, wherein the first and second valves are disposed above an opening in the tubular. ### Claim 13 (depends on 12) The valve arrangement of claim 12, wherein the opening comprises a gap between two tubulars. ### Claim 14 (depends on 11) The valve arrangement of claim 11, further comprising a third one way valve. ### Claim 15 (depends on 14) The valve arrangement of claim 14, wherein the third one way valve prevents fluid flow in the second direction. ### Claim 16 (depends on 11) The valve arrangement of claim 11, wherein at least one of the one way valves comprises a flapper valve. ### Claim 17 (depends on 11) The valve arrangement of claim 11, wherein the first direction is a downward direction. ### Claim 18 A method of completing a wellbore, comprising: providing a tubular having a first one way valve configured to prevent fluid flow in the tubular in a first direction and a second one way valve configured to prevent fluid flow in the tubular in a second, opposite direction; supplying a cement through the first and second valves and out of the tubular; closing the second one way valve to prevent cement from returning into the tubular; and closing the first one way valve and applying pressure above the first one way valve. ### Claim 19 (depends on 18) The method of claim 18, wherein the pressure is applied to test for leaks in the tubular. ### Claim 20 (depends on 18) The method of claim 18, further comprising maintaining the first and second one way valves in the open position during a drilling operation. ### Claim 21 (depends on 20) The method of claim 20, wherein the valves are maintained opened using a drill string connected to a motor.