A downhole tool deployable within a wellbore for controlling the supply of treatment to fluid to a reservoir is disclosed. The downhole tool includes a housing defining a passage and a port extending through the housing. The housing includes a seat that is configured for deployment to a plug-receivi
A downhole tool deployable within a wellbore for controlling the supply of treatment to fluid to a reservoir is disclosed. The downhole tool includes a housing defining a passage and a port extending through the housing. The housing includes a seat that is configured for deployment to a plug-receiving position for receiving a plug that is deployed through the passage. A key profile for effecting actuation of the seat to the plug-receiving position in response to registration of the key profile with a matching key on the plug being deployed through the passage is provided. The downhole tool further includes a flow control member configured for displacement relative to the port in response to application of a sufficient net force effected by a fluid pressure differential that is created by supplying pressurized fluid to the passage while the plug is deployed on the seat.
대표청구항▼
1. A downhole tool comprising: a housing;a passage disposed within the housing;a seat configured for deployment to a plug-receiving position for receiving a plug being deployed through the passage;a key profile for effecting actuation of the seat to the plug-receiving position in response to registr
1. A downhole tool comprising: a housing;a passage disposed within the housing;a seat configured for deployment to a plug-receiving position for receiving a plug being deployed through the passage;a key profile for effecting actuation of the seat to the plug-receiving position in response to registration of the key profile with a matching key of the plug being deployed through the passage;a port extending through the housing; anda flow control member configured for displacement, relative to the port, in response to application of a sufficient net force effected by a fluid pressure differential that is created by supplying pressurized fluid to the passage while the plug is seated on the seat, wherein the displacement of the flow control member is from a closed position to an open position;wherein the seat includes: a seat actuator; anda seat actuator retainer;wherein the seat actuator is releasable from retention by the seat actuator retainer in response to the registration of the matching key with the key profile, such that the seat actuator effects the deployment of the seat; andthe seat actuator includes one or more retainable portions, and registration of the matching key with the key profile effects relative displacement between: (i) all of the one or more retainable portions, and (ii) the seat actuator retainer, such that the releasing of the seat actuator from retention by the seat actuator retainer is effected; andwherein the key profile is configured to transmit, to the one or more retainable portions, a force applied by the plug while the registration of the matching key with the key profile is being effected;and wherein each one of the one or more retainable portions, independently, is biased towards its respective retained position;and wherein, for each one of the one or more retainable portions, the biasing of the retainable portion also effects biasing of the key profile into a position for registering with the matching key of the plug being deployed through the passage. 2. The downhole tool as claimed in claim 1; wherein each one of the one or more retainable portions, independently, is displaceable between a retained position and a released position, wherein, for each one of the one or more retainable portions, in the retained position, the retainable portion is retained by the seat actuator retainer, and wherein, in the released position, the retainable portion is released from the seat actuator retainer;such that the deployment of the seat is prevented by the retention of at least one of the one or more retainable portions by the seat actuator retainer;and such that the seat actuator becomes released from retention by the seat actuator retainer and becomes displaceable to effect the deployment of the seat once all of the one or more retainable portions become disposed in their respective released positions. 3. The downhole tool as claimed in claim 1; wherein the seat actuator is biased towards a seat actuation position for urging the deployment of the seat. 4. The downhole tool as claimed in claim 1; wherein the key profile includes a pattern. 5. The downhole tool as claimed in claim 1; wherein the displacement of the flow control member from a closed position to an open position effects uncovering of the port. 6. The downhole tool as claimed in claim 1; wherein when the port is disposed in the closed condition, sealing, or substantial sealing, of fluid communication, between the port and the passage is effected; andwherein when the port is disposed in the open condition, fluid communication, between the port and the passage is effected. 7. A wellbore string comprising the downhole tool as claimed in claim 1. 8. A downhole tool comprising: a housing;a passage disposed within the housing;a seat configured for deployment from a non-interfering position to a plug-receiving position for receiving a plug being deployed through the passage;a seat actuator configured for displacement to a seat actuation position for effecting the deployment of the seat, wherein the seat actuator includes a plurality of retainable portions;a seat actuator retainer;a releasing actuator including a plurality of releasing actuator members, wherein each one of the releasing actuator members, independently, corresponds to a respective retainable portion;wherein each one of the retainable portions, independently, is displaceable between a retained position and a released position, wherein, for each one of the retainable portions, in the retained position, the retainable portion is retained by the seat actuator retainer, and wherein, in the released position, the retainable portion is released from the seat actuator retainer; andwherein each one of the retainable portions, independently, is displaceable from its respective retained position to its respective released position, in response to transmission, by the respective releasing actuator member, of a force being applied from within the passage to the respective releasing actuator member;such that the deployment of the seat from the non-interfering position to the plug-receiving position is prevented by the retention of at least one of the retainable portions by the seat actuator retainer;and such that releasing of the seat actuator, with effect that the seat actuator becomes displaceable to the seat actuation position to effect the deployment of the seat from the non-interfering position to the plug-receiving position, is effected once all of the releasing actuator members become registered with a matching key of a plug being deployed through the passage, such that, for each one of the releasing actuator members, independently, a force, applied by the plug, is received and transmitted to the respective retainable portion such that displacement of the respective retainable portion is effected, and such that each one of retainable portions, independently, becomes disposed in its respective released position;a port extending through the housing;and a flow control member configured for displacement, relative to the port, in response to application of a sufficient net force effected by a fluid pressure differential that is created by supplying pressurized fluid to the passage while a plug is seated on the seat, wherein the displacement of the flow control member is from a closed position to an open position. 9. The downhole tool as claimed in claim 8; wherein the seat actuator is biased towards the seat actuation position. 10. The downhole tool as claimed in claim 8; wherein each one of the retainable portions, independently, is biased towards its respective retained position. 11. The downhole tool as claimed in claim 10; wherein, for each one of the retainable portions, the biasing of the retainable portion also effects biasing of the respective releasing actuator member, such that each one of the releasing actuator members is positioned for registering with a matching key of a plug being deployed through the passage. 12. The downhole tool as claimed in claim 8; wherein the plurality of releasing actuator members define a key profile configured for effecting the displacement of each one of the retainable portions, independently, in response to registration with a matching key of the plug being deployed through the passage. 13. The downhole tool as claimed in claim 8; wherein the displacement of the flow control member from a closed position to an open position effects uncovering of the port. 14. The downhole tool as claimed in claim 8; wherein when the port is disposed in the closed condition, sealing, or substantial sealing, of fluid communication, between the port and the passage is effected; and wherein when the port is disposed in the open condition, fluid communication, between the port and the passage is effected. 15. A wellbore string comprising the downhole tool as claimed in claim 8. 16. A process for supplying treatment fluid to a subterranean formation comprising: deploying a first plug downhole through the wellbore string as claimed in claim 15, such that the first seat becomes deployed and the first plug becomes seated on the first seat;supplying pressurized fluid uphole of the seated first plug such that the first flow control member becomes displaced to the open position;supplying treatment fluid to the subterranean formation through the first port;deploying a second plug downhole through the wellbore string, such that the second seat becomes deployed and the second plug becomes seated on the second seat;supplying pressurized fluid uphole of the seated second plug such that the second flow control member becomes displaced to the open position; andsupplying treatment fluid to the subterranean formation through the second port. 17. A kit for enabling fluid treatment of multiple zones within a well, comprising: a first plug including a first key;a second plug including a second key;a first downhole tool, configured for incorporation within a wellbore string, and including: a first housing;a first passage disposed within the first housing;a first seat configured for deployment to a plug-receiving position for receiving a first plug being deployed through the passage;a first key profile for effecting actuation of the first seat to the plug-receiving position in response to registration of the first key profile with a matching key of the first plug being deployed through the passage;a first port extending through the first housing;and a first flow control member configured for displacement, relative to the first port, in response to application of a sufficient net force effected by a fluid pressure differential that is created by supplying pressurized fluid to the first passage while the first plug is seated on the first seat, wherein the displacement of the first flow control member is from a closed position to an open position; anda second downhole tool, configured for incorporation within a wellbore string, and including: a second housing;a second passage disposed within the second housing;a second seat configured for deployment to a plug-receiving position for receiving a second plug being deployed through the passage;a second key profile for effecting actuation of the second seat to the plug-receiving position in response to registration of the second key profile with a matching key of the second plug being deployed through the passage;a second port extending through the second housing; anda second flow control member configured for displacement, relative to the second port, in response to application of a sufficient net force effected by a fluid pressure differential that is created by supplying pressurized fluid to the second passage while the second plug is seated on the second seat, wherein the displacement of the second flow control member is from a closed position to an open position;wherein, for at least one of the first and second plugs, the key of one plug does not match the key profile to which the other plug is registerable with, such that, for at least one of the first and second plugs, the plug is deployable through the passage of the downhole tool with the non-matching key profile without effecting deployment of the seat of the downhole tool with the non-matching key profile. 18. The kit as claimed in claim 17; wherein the first downhole tool further comprises: a first seat actuator; anda first seat actuator retainer;wherein the first seat actuator is releasable from retention by the first seat actuator retainer in response to the registration of the matching key of the first plug with the first key profile, such that the first seat actuator effects the deployment of the first seat;and wherein the second downhole tool further comprises: a second seat actuator; anda second seat actuator retainer;wherein the second seat actuator is releasable from retention by the second seat actuator retainer in response to the registration of the matching key of the second plug with the second key profile, such that the second seat actuator effects the deployment of the second seat. 19. The kit as claimed in claim 18; wherein the first seat actuator includes one or more first retainable portions;and wherein the registration of the matching key of the first plug with the first key profile effects relative displacement between: (i) all of the one or more first retainable portions, and (ii) the first seat actuator retainer, such that the releasing of the first seat actuator from retention by the first seat actuator retainer is effected;and wherein the second seat actuator includes one or more second retainable portions;and wherein the registration of the matching key of the second plug with the second key profile effects relative displacement between: (i) all of the one or more second retainable portions, and (ii) the second seat actuator retainer, such that the releasing of the second seat actuator from retention by the second seat actuator retainer is effected. 20. The kit as claimed in claim 19; wherein each one of the one or more first retainable portions, independently, is displaceable between a retained position and a released position, wherein, for each one of the one or more first retainable portions, in the retained position, the first retainable portion is retained by the first seat actuator retainer, and wherein, in the released position, the first retainable portion is released from the first seat actuator retainer;such that the deployment of the first seat is prevented by the retention of at least one of the one or more first retainable portions by the first seat actuator retainer;and such that the first seat actuator becomes released from retention by the first seat actuator retainer and becomes displaceable to effect the deployment of the first seat once all of the one or more first retainable portions become disposed in their respective released positions;and wherein each one of the one or more second retainable portions, independently, is displaceable between a retained position and a released position, wherein, for each one of the one or more second retainable portions, in the retained position, the second retainable portion is retained by the second seat actuator retainer, and wherein, in the released position, the second retainable portion is released from the second seat actuator retainer;such that the deployment of the second seat is prevented by the retention of at least one of the one or more second retainable portions by the second seat actuator retainer;and such that the second seat actuator becomes released from retention by the second seat actuator retainer and becomes displaceable to effect the deployment of the second seat once all of the one or more second retainable portions become disposed in their respective released positions. 21. The kit as claimed in claim 19; wherein the first key profile is configured to transmit, to the first retainable portions, a force applied by the plug while the registration of the matching key with the key profile is being effected;and wherein the second key profile is configured to transmit, to the second retainable portions, a force applied by the plug while the registration of the matching key with the key profile is being effected. 22. The kit as claimed in claim 19; wherein each one of the first retainable portions, independently, is biased towards its respective retained position;and wherein each one of the second retainable portions, independently, is biased towards its respective retained position. 23. The kit as claimed in claim 19; wherein the first key profile is configured to transmit, to the first retainable portions, a force applied by the first plug while the registration of the matching key of the first plug with the first key profile is being effected;and wherein each one of the first retainable portions, independently, is biased towards its respective retained position;and wherein, for each one of the first retainable portions, the biasing of the first retainable portion also effects biasing of the first key profile into a position for registering with a matching key of the first plug being deployed through the first passage;and wherein the second key profile is configured to transmit, to the second retainable portions, a force applied by the second plug while the registration of the matching key of the second plug with the second key profile is being effected;and wherein each one of the second retainable portions, independently, is biased towards its respective retained position;and wherein, for each one of the second retainable portions, the biasing of the second retainable portion also effects biasing of the second key profile into a position for registering with a matching key of the second plug being deployed through the second passage. 24. The kit as claimed in claim 18; wherein the first seat actuator is biased towards a seat actuation position for urging the deployment of the first seat;and wherein the second seat actuator is biased towards a seat actuation position for urging the deployment of the second seat. 25. The kit as claimed in claim 17; wherein the first key profile includes a first pattern;and wherein the second key profile includes a second pattern; wherein the first pattern is different than the second pattern. 26. The kit as claimed in claim 17wherein the displacement of the first flow control member from a closed position to an open position effects uncovering of the first port;and wherein the displacement of the second flow control member from a closed position to an open position effects uncovering of the second port. 27. The kit as claimed in claim 17; wherein when the first port is disposed in the closed condition, sealing, or substantial sealing, of fluid communication, between the first port and the first passage is effected;and wherein when the first port is disposed in the open condition, fluid communication, between the first port and the first passage is effected;and wherein when the second port is disposed in the closed condition, sealing, or substantial sealing, of fluid communication, between the second port and the second passage is effected;and wherein when the second port is disposed in the open condition, fluid communication, between the second port and the second passage is effected. 28. The kit as claimed in claim 17; wherein the first plug is configured such that, while the first plug is seated on the first seat, fluid flow, past the first plug, in a downhole direction, is prevented, or substantially prevented, such that the creation of the fluid pressure differential, for effecting the displacement of the first flow control member, is effected;and wherein the second plug is configured such that, while the second plug is seated on the second seat, fluid flow, past the second plug, in a downhole direction, is prevented, or substantially prevented, such that the creation of the fluid pressure differential, for effecting the displacement of the second flow control member, is effected. 29. The kit as claimed in claim 17; wherein the first plug includes a selectively openable fluid passage for effecting fluid flow within the first passage, across the first plug, in an uphole direction, in response to a downhole fluid pressure, acting on the first plug, sufficiently exceeding an uphole fluid pressure, acting on the first plug;and wherein the second plug includes a selectively openable fluid passage for effecting fluid flow within the second passage, across the second plug, in an uphole direction, in response to a downhole fluid pressure, acting on the second plug, sufficiently exceeding an uphole fluid pressure, acting on the second plug. 30. The kit as claimed in claim 29; wherein the selectively openable fluid passage of the first plug includes a one-way valve;and wherein the selectively openable fluid passage of the second plug includes a one-way valve. 31. A kit for enabling fluid treatment of multiple zones within a well, comprising: a first plug including a first key;a second plug including a second key;a first downhole tool, configured for incorporation within a wellbore string, and including: a first housing;a first passage disposed within the first housing;a first seat configured for deployment to a plug-receiving position for receiving a first plug being deployed through the first passage;a first seat actuator configured for displacement to a seat actuation position for effecting the deployment of the first seat, wherein the first seat actuator includes a plurality of first retainable portions; a first seat actuator retainer;a first releasing actuator including a plurality of first releasing actuator members, wherein each one of the first releasing actuator members, independently, corresponds to a respective first retainable portion;wherein each one of the first retainable portions, independently, is displaceable between a retained position and a released position, wherein, for each one of the first retainable portions, in the retained position, the first retainable portion is retained by the first seat actuator retainer, and wherein, in the released position, the first retainable portion is released from the first seat actuator retainer;and wherein each one of the first retainable portions, independently, is displaceable from its respective retained position to its respective released position, in response to transmission, by the respective first releasing actuator member, of a force being applied from within the first passage to the respective first releasing actuator member;such that the deployment of the first seat is prevented by the retention of at least one of the first retainable portions by the first seat actuator retainer;and such that releasing of the first seat actuator, with effect that the first seat actuator becomes displaceable to the seat actuation position to effect the deployment of the first seat, is effected once all of the first releasing actuator members become registered with a matching key of a first plug being deployed through the first passage, such that, for each one of the first releasing actuator members, independently, a force, applied by the first plug, is received and transmitted to the respective first retainable portion such that displacement of the respective first retainable portion is effected, and such that each one of first retainable portions, independently, becomes disposed in its respective released position;a first port extending through the first housing; anda first flow control member configured for displacement, relative to the first port, in response to application of a sufficient net force effected by a fluid pressure differential that is created by supplying pressurized fluid to the first passage while a first plug is seated on the first seat, wherein the displacement of the first flow control member is from a closed position to an open position;anda second downhole tool, configured for incorporation within a wellbore string, and including: a second housing;a second passage disposed within the second housing;a second seat configured for deployment to a plug-receiving position for receiving a second plug being deployed through the second passage;a second seat actuator configured for displacement to a seat actuation position for effecting the deployment of the second seat, wherein the second seat actuator includes a plurality of second retainable portions;a second seat actuator retainer;a second releasing actuator including a plurality of second releasing actuator members, wherein each one of the second releasing actuator members, independently, corresponds to a respective second retainable portion;wherein each one of the second retainable portions, independently, is displaceable between a retained position and a released position, wherein, for each one of the second retainable portions, in the retained position, the second retainable portion is retained by the second seat actuator retainer, and wherein, in the released position, the second retainable portion is released from the second seat actuator retainer;and wherein each one of the second retainable portions, independently, is displaceable from its respective retained position to its respective released position, in response to transmission, by the respective second releasing actuator member, of a force being applied from within the second passage to the respective second releasing actuator member;such that the deployment of the second seat is prevented by the retention of at least one of the second retainable portions by the second seat actuator retainer;and such that releasing of the second seat actuator, with effect that the second seat actuator becomes displaceable to the seat actuation position to effect the deployment of the second seat, is effected once all of the second releasing actuator members become registered with a matching key of a second plug being deployed through the second passage, such that, for each one of the second releasing actuator members, independently, a force, applied by the second plug, is received and transmitted to the respective second retainable portion such that displacement of the respective second retainable portion is effected, and such that each one of second retainable portions, independently, becomes disposed in its respective released position;a second port extending through the second housing; anda second flow control member configured for displacement, relative to the second port, in response to application of a sufficient net force effected by a fluid pressure differential that is created by supplying pressurized fluid to the second passage while a second plug is seated on the second seat, wherein the displacement of the second flow control member is from a closed position to an open position;wherein, for at least one of the first and second plugs, the key of one plug does not match the key profile to which the other plug is registerable with, such that, for at least one of the first and second plugs, the plug is deployable through the passage of the downhole tool with the non-matching key profile without effecting deployment of the seat of the downhole tool with the non-matching key profile. 32. The kit as claimed in claim 31; wherein the first seat actuator is biased towards the seat actuation position;and wherein the second seat actuator is biased towards the seat actuation position. 33. The kit as claimed in claim 31; wherein each one of the first retainable portions, independently, is biased towards its respective retained position;and wherein each one of the second retainable portions, independently, is biased towards its respective retained position. 34. The kit as claimed in claim 31; wherein, for each one of the first retainable portions, the biasing of the first retainable portion also effects biasing of the respective first releasing actuator member, such that each one of the first releasing actuator members is positioned for registering with a matching key of a first plug being deployed through the first passage;and wherein, for each one of the second retainable portions, the biasing of the second retainable portion also effects biasing of the respective second releasing actuator member, such that each one of the second releasing actuator members is positioned for registering with a matching key of a second plug being deployed through the second passage. 35. The kit as claimed in claim 31; wherein the plurality of first releasing actuator members define a first key profile configured for effecting the displacement of each one of the first retainable portions, independently, in response to registration with a matching key of the first plug being deployed through the first passage;and wherein the plurality of second releasing actuator members define a second key profile configured for effecting the displacement of each one of the second retainable portions, independently, in response to registration with a matching key of the second plug being deployed through the second passage. 36. The kit as claimed in claim 31; wherein the displacement of the first flow control member from a closed position to an open position effects uncovering of the first port;and wherein the displacement of the second flow control member from a closed position to an open position effects uncovering of the second port. 37. The kit as claimed claim 31; wherein when the first port is disposed in the closed condition, sealing, or substantial sealing, of fluid communication, between the first port and the first passage is effected;and wherein when the first port is disposed in the open condition, fluid communication, between the first port and the first passage is effected;and wherein when the second port is disposed in the closed condition, sealing, or substantial sealing, of fluid communication, between the second port and the second passage is effected;and wherein when the second port is disposed in the open condition, fluid communication, between the second port and the second passage is effected. 38. The kit as claimed in claim 31; wherein the first plug is configured such that, while the first plug is seated on the first seat, fluid flow within the first passage, past the first plug, in a downhole direction, is prevented, or substantially prevented, such that the creation of the fluid pressure differential, for effecting the displacement of the first flow control member, is effectedand wherein the second plug is configured such that, while the second plug is seated on the second seat, fluid flow within the second passage, past the second plug, in a downhole direction, is prevented, or substantially prevented, such that the creation of the fluid pressure differential, for effecting the displacement of the second flow control member, is effected. 39. The kit as claimed in claim 31; wherein the first plug includes a selectively openable fluid passage for effecting fluid flow within the first passage, across the first plug, in an uphole direction, in response to a downhole fluid pressure, acting on the first plug, sufficiently exceeding an uphole fluid pressure, acting on the first plug;and wherein the second plug includes a selectively openable fluid passage for effecting fluid flow within the second passage, across the second plug, in an uphole direction, in response to a downhole fluid pressure, acting on the second plug, sufficiently exceeding an uphole fluid pressure, acting on the second plug. 40. The kit as claimed in claim 31; wherein the selectively openable fluid passage of the first plug includes a one-way valve;and wherein the selectively openable fluid passage of the second plug includes a one-way valve.
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이 특허에 인용된 특허 (13)
Freeman,Tommie A., Apparatus for actuating a well tool and method for use of same.
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