Claims
- 1. For use in a well conduit having a seat therein and an internal groove thereabout, apparatus comprising a running tool adapted to be raised and lowered within the well conduit, a well tool, means for connecting the well tool to the running tool to permit the well tool to be raised and lowered with the running tool, locking means carried by the well tool for radial expansion and contraction with respect thereto, said well tool having a shoulder thereon engageable with the seat to dispose the locking means opposite the groove in the well conduit, means shiftable in one vertical direction, following engagement of the shoulder with the seat, for causing the locking means to be expanded into locking position within the groove, and means operable upon further shifting of said shiftable means in said one vertical direction, following expansion of said locking means into locking position, for locking said shiftable means against movement in the opposite direction in response to an axial force in said opposite vertical direction, and means automatically responsive to locking of said shiftable means for disconnecting the running tool from the well tool in order to permit retrieval of the running tool from the well conduit.
- 2. Apparatus of the character defined in claim 1, wherein the means for connecting the well tool to the running tool comprises a groove in the well tool, and latches carried by the running tool and yieldably urged to positions for latching within the groove, and the means for disconnecting the well tool from the running tool comprises means for moving said latches to unlatching position.
- 3. Apparatus of the character defined in claim 2, wherein the means for locking said shiftable means includes means which is radially biased into locking position and which engages said latch moving means to disconnect said running tool and well tool automatically in response to further movement of said shiftable means in said one vertical direction.
- 4. Apparatus of the character defined in claim 3, wherein said latch moving means comprises dogs which are carried by the running tool.
- 5. Apparatus of the character defined in claim 3, including another tool adapted to be raised and lowered within the well conduit, said other tool having means for releasably connecting it to the running tool, when lowered onto said running tool, and means for unlocking said shiftable means and/or disconnecting the running tool, as said other tool is so lowered, whereby said well tool and running tool may be raised with said other tool in order that the well tool may be retrieved in the event said shiftable means is not unlocked and/or the running tool is not disconnected upon said further shifting of said shiftable means, said unlocking and/or disconnecting means on said other tool comprising means movable between said biased means and latch moving means.
- 6. Apparatus of the character defined in claim 1, including another running tool connectible to a wire line for raising and lowering therewith, and means for connecting the other running tool to the first-mentioned running tool, said connecting means being releasable to permit said other running tool to be retrieved in the event the first-mentioned running tool cannot be disconnected from the well tool.
- 7. Apparatus of the character defined in claim 6, wherein the other running tool has means thereon for connecting it to said well tool, following retrieval of both running tools and subsequent lowering of the other running tool onto the well tool, and for unlocking said shiftable means as said other running tool is so lowered into connection with the well tool, whereby said well tool may be moved with said other running tool in said other vertical direction to release the locking means and permit said well tool to be retrieved with the other running tool.
- 8. Apparatus of the character defined in claim 7, wherein the means for connecting each running tool to the well tool comprises a groove in the first member, latches carried by each running tool and yieldably urged to positions for latching within the groove, and the means for disconnecting the well tool and the first-mentioned running tool comprises means for moving said latches to unlatching position.
- 9. Apparatus of the character defined in claim 1, including another tool adapted to be raised and lowered within the well conduit, said other tool having means thereon for connecting it to said well too, following retrieval of the running tool and subsequent lowering of the other tool onto the well tool, and for unlocking said shiftable means, as said other tool is so lowered, whereby said well tool may be moved with said other tool in said other vertical direction to release the locking means and permit said well tool to be retreived with the other tool.
- 10. Apparatus of the character defined in claim 9, wherein the means for locking the shiftable means includes means which is radially biased into locking position, and said means on the other tool for unlocking said shiftable means comprises means engageable with the radially biased means to move it out of locking position.
- 11. Apparatus of the character defined in claim 10, including another tool adapted to be raised and lowered within the well conduit, said other tool having means for releasably connecting it to the running tool, when lowered onto said running tool, and for unlocking said shiftable means and/or disconnecting the running tool, as said other tool is so lowered, whereby said well tool and running tool may be raised with said other tool in order that the well tool may be retrieved in the event said shiftable means is not unlocked and/or the running tool is not disconnected upon said further shifting of said shiftable means.
- 12. Apparatus of the character defined in claim 11, wherein said means for unlocking said shiftable means is removable from the remainder of said other tool, and said other tool has means thereon for releasably connecting it to said running tool so that, with said unlocking means removed; said running tool and the well tool may be lowered with the other tool, and said other tool released and retrieved from the running tool in the event the running tool is not released from said well tool member.
- 13. Apparatus of the character defined in claim 12, wherein said other tool has means thereon for connecting it to said well tool, following retrieval of the running tool and subsequent lowering of the other tool onto the well, and for unlocking said shiftable means, as said other tool is so lowered, whereby said well tool may be moved with said other tool in said other vertical direction to release the locking means and permit said well tool to be retrieved with the other tool.
- 14. Apparatus of the character defined in claim 1, wherein the shoulder on the well tool is landable on an upwardly facing seat in the well conduit, and the shiftable means is lowered to cause the locking means to be expanded and the shiftable means to be locked.
- 15. For use in a well conduit having a seat therein and an internal groove thereabout, apparatus comprising a running tool adapted to be raised and lowered within the well conduit, a well tool including a first member, a second member supported by the first member for vertical movement with respect thereto, means for connecting the first member to the running tool to permit the well tool to be raised and lowered therewith, said second member having a shoulder thereon engageable with the seat to prevent further movement of a said second member in one vertical direction, locking means carried by the second member for disposal opposite the groove in the well conduit when the shoulder is engaged with the seat in the well conduit, said first member having means thereon for moving the locking means into locking position within the groove in response to vertical movement of the first member in one vertical direction with respect to the second member, said first and second members having parts thereon which are automatically movable into locking positions, upon further movement of said first member in said one vertical direction, following movement of the first member in the opposite vertical direction in response to an axial force in the opposite vertical direction, and means responsive to movement of said parts into locking position for disconnecting the running tool assembly and first member in order to permit retrieval of said running tool from the well conduit.
- 16. Apparatus of the character defined in claim 15, wherein the means for connecting the first member to the running tool comprises a groove in the first member, and latches carried by the running tool and yieldably urged to positions for latching within the groove, and the means for disconnecting the first member and running tool assembly comprises means for moving said latches to unlatching position.
- 17. Apparatus of the character defined in claim 16, wherein the port on one of said members is radially biased into locking position and engages said latch moving means to disconnect said running tool and well tool, automatically in response to further movement of said first member in said one vertical direction.
- 18. Apparatus of the character defined in claim 17, wherein said latch moving means comprises dogs which are carried by the running tool.
- 19. Apparatus of the character defined in claim 17, including another tool adapted to be raised and lowered within the well conduit, said other tool having means for releasably connecting it to the running tool, when lowered onto said running tool, and means for disengaging those parts which have moved into engagement with one another and thereby release said first member from said second member, and/or disconnecting said running tool, as said other tool is so lowered, whereby said first member and running tool may be raised with said other tool in order that the well tool may be retrieved in the event said first member is not released and/or the running tool is not disconnected upon said further movement of said first member, said unlocking and/or disconnecting means on said other tool comprising means movable between said baised means and latch moving means.
- 20. Apparatus of the character defined in claim 15, including another running tool connectible to a wire line for raising and lowering therewith, and means for connecting the other running tool to the first-mentioned running tool, said connecting means being releasable to permit said other running tool to be retrieved in the event the first-mentioned running tool cannot be disconnected from the well tool.
- 21. Apparatus of the character defined in claim 20, wherein the other running tool has means thereon for connecting it to said first member, following retrieval of both running tools and subsequent lowering of the other running tool onto the first member, and for moving said parts out of engagement with one another, as said other running tool is so lowered into connection with the first member, whereby said first member may be moved with said other running tool in said other vertical direction to release the locking means and permit said well tool to be retrieved with the other running tool.
- 22. Apparatus of the character defined in claim 21, wherein the means for connecting each running tool to the first member comprises a groove in the first member, latches carried by each running tool and yieldably urged to positions for latching within the groove, and the means for disconnecting the first member and the first-mentioned running tool comprises means for moving said latches to unlatching position.
- 23. Apparatus of the character defined in claim 15, including another running tool adapted to be raised and lowered within the well conduit, said other tool having means thereon for connecting it to said first member, following retrieval of the running tool and subsequent lowering of the other running tool onto the first member, and for moving said parts out of engagement with one another, as said other tool is so lowered, whereby said first member may be moved with said other tool in said other vertical direction to release the locking means and permit said well tool to be retrieved with the other tool.
- 24. Apparatus of the character defined in claim 23, wherein the locking part on one of said members is radially biased into locking position, and said means on the other tool comprises means engageable with the radially biased part on said one member to move it out of locking position with said other part
- 25. Apparatus of the character defined in claim 15, including another tool adapted to be raised and lowered within the well conduit, said other tool having means for releasably connecting it to the running tool, when lowered onto said running tool, and for disengaging those parts which have moved into engagement with one another and thereby release said first member from said second member, and/or disconnecting said running tool, as said other tool is so lowered, whereby said first member and running tool may be raised with said other tool in order that the well tool may be retrieved in the event said first member is not released and/or the running tool is not disconnected upon said further movement of said first member.
- 26. Apparatus of the character defined in claim 25, wherein said means for disengaging said parts is removable from the remainder of said other tool, and said other tool has means thereon for releasably connecting it to said running tool so that, with said additional means removed, said running tool and the well tool may be lowered with the other tool, and said other tool released and retrieved from the running tool in the event it is not released from said first member.
- 27. Apparatus of the character defined in claim 26, wherein said other tool having means thereon for connecting it to said first member, following retrieval of the running tool and subsequent lowering of the other tool onto the first member, and for moving said parts out of engagement with one another, as said other tool is so lowered, whereby said first member may be moved with said other tool in said other vertical direction to release the locking means and permit said well tool to be retrieved with the other tool.
- 28. Apparatus of the character defined in claim 15, wherein the shoulder on the second member is landable on an upwardly facing seat in the well conduit, and the first member is lowered with respect to the member to expand the locking means and cause the first member to be locked to the second member.
- 29. For use in a well conduit having a seat therein and an internal groove thereabout, apparatus comprising a running tool adapted to be raised and lowered within the well conduit, a well tool including a first member, a second member supported by the first member for vertical movement with respect thereto, means for connecting the first member to the running tool to permit the well tool to be raised and lowered therewith, said second member having a shoulder thereon engageable with the seat to prevent further movement of said second member in one vertical direction, locking means carried by the second member for disposal opposite the groove in the well conduit when the shoulder is engaged with the seat in the well conduit, said first member having means thereon for moving the locking means into locking position within the groove in response to vertical movement of the first member in one vertical direction with respect to the second member, one member including collet fingers having shoulders which are radially biased by the other member, as said first member is moved in said one direction with respect to the second member, the other member having oppositely facing shoulder over which the shoulders on the collet fingers move upon further movement of said first member in said one vertical direction, following movement of the first member in the opposite vertical direction in response to an axial force in the opposite vertical direction, and means responsive to movement of the collet finger shoulders over the shoulder on the first member for disconnecting the running tool from the first member to permit retrieval of the running tool.
- 30. Apparatus of the character defined in claim 29, wherein the means for connecting the first member to the running tool comprises a groove in the first member, and latches carried by the running tool and yieldably urged to positions for latching within the groove and, the means for disconnecting the first member and running tool comprises means for moving the latches to unlatching position, and means on each collet finger for moving a latch to unlatching position as the shoulder thereof moves over the shoulder on the other member.
- 31. Apparatus of the character defined in claim 30, wherein said latch moving means comprises dogs which are carried by the running tool.
- 32. Apparatus of the character defined in claim 30, including another tool adapted to be raised and lowered within the well conduit, said other tool having means for releasably connecting it to the running tool, when lowered onto said running tool, and for moving the shoulders of the collet fingers from over the shoulder on said other member, and/or disconnecting said running tool, whereby said first member and running tool may be raised with said other tool in over to retrieve the well tool in the event the collet fingers are not so moved from over the shoulder on said other member and/or the running tool is not disconnected upon said further movement of the first member.
- 33. Apparatus of the character defined in claim 30, wherein said means for moving the shoulders of the collet fingers and/or disconnecting means comprises means moveable between the collet finger shoulders and latch moving means.
- 34. Apparatus of the character defined in claim 29, including another tool adapted to be raised and lowered within the well conduit, said other tool having means thereon for connecting it to said first member, following retrieval of the first-mentioned running tool and subsequent lowering of the other tool onto the first member, and for moving said collet fingers to positions in which the shoulders thereon are radially displaced from the shoulder on the other member, as said other tool is so lowered, whereby said first member may be moved with said other tool in said other vertical direction to release the locking means and permit said well tool to be retrieved with the other tool.
- 35. Apparatus of the character defined in claim 30, wherein the running tool includes a body on which the latches are carried, and dogs pivotally mounted on the body to dispose one end of each for engaging a latch and the other end for engagement by a collet finger to pivot the dogs in a direction to unlatch the latches.
- 36. Apparatus of the character defined in claim 35, including spring means compressed between each latch and running tool body to yieldably urge the latch to latching position and the other end of the dog into position for engagement by a collet finger.
- 37. Apparatus of the character defined in claim 35, wherein there are a lesser number of dogs than collet fingers so that only certain fingers are engageable with the dogs.
- 38. Apparatus of the character defined in claim 35, wherein the dogs are engaged by portions of the collet fingers above the shoulder thereon which extend above the other member.
- 39. Apparatus of the character defined in claim 38, wherein the collet fingers surround the other member.
- 40. Apparatus of the character defined in claim 29, wherein the shoulder on the second member is landable no an upwardly facing seat in the well conduit, and the first member is lowered with respect to the second member to expand the locking means and cause the first member to be locked to the second member.
- 41. A running tool, comprising a body adapted to raised and lowered within a well conduit, latches carried by the body and yieldably urged to positions for latching within a groove of a well tool having a first member which is vertically shiftable with respect to another member thereof which is landed within the conduit, and dogs mounted on the body to dispose one end of each for engaging a latch and the other end for engagement by a part on the other member of the well tool as the first member is shifted vertically with respect thereto in order to move the latches to unlatching position.
- 42. A running tool of the character defined in claim 41, including spring means compressed between each latch and the body to yieldably urge the latch to latching position and the other end of the dog into position for engagement by said part on said other member.
Parent Case Info
This application is a continuation of my copending application Ser. No. 536,278, filed Sept. 27, 1983, now abandoned and entitled "Well Apparatus", which in turn was a continuation in part of my copending application, Ser. No. 489,827, filed Apr. 29, 1983, now U.S. Pat. No. 4,522,259 and entitled "Well Apparatus".
US Referenced Citations (3)
Continuations (1)
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Number |
Date |
Country |
Parent |
536278 |
Sep 1983 |
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Continuation in Parts (1)
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Number |
Date |
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Parent |
489827 |
Apr 1983 |
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