초록 ▼

A dual sided elevator for supporting a tubular member in a wellbore operation, the elevator in one aspect having an openable back end and an openable front end, either end openable by using opening apparatus at the front of the elevator; such an elevator with operation apparatus within an elevator b

A dual sided elevator for supporting a tubular member in a wellbore operation, the elevator in one aspect having an openable back end and an openable front end, either end openable by using opening apparatus at the front of the elevator; such an elevator with operation apparatus within an elevator body; and/or a top drive system which, in at least certain embodiments, has an apparatus connected below it for breaking connections and such an elevator.

대표청구항 ▼

What is claimed is: 1. An elevator for use in wellbore operations, the elevator comprising a first side body with a first front end and a first back end, a second side body with a second front end and a second back end, a space between the first side body and the second side body for receiving a tu

What is claimed is: 1. An elevator for use in wellbore operations, the elevator comprising a first side body with a first front end and a first back end, a second side body with a second front end and a second back end, a space between the first side body and the second side body for receiving a tubular member, the side bodies for supporting a tubular member within the elevator, first release apparatus releasably connecting together the first front end and the second front end, second release apparatus releasably connecting together the first back end and the second back end, and actuation apparatus connected to the elevator for selectively operating a chosen one of the first release apparatus or the second release apparatus, the first release apparatus including first latch apparatus for selectively latching together the first front end and the second front end, the second release apparatus including second latch apparatus for selectively latching together the first back end and the second back end, wherein the actuation apparatus comprises handle apparatus manipulable to activate a chosen one of the first release apparatus or the second release apparatus, wherein the handle apparatus includes a first handle pivotably mounted to the first side body, the first handle pivotable to selectively operate the first release apparatus, and a second handle pivotably mounted to the first side body, the second handle pivotable to selectively operate the second release apparatus, locking apparatus for selectively locking the elevator closed, preventing the actuation apparatus from operating, and operation apparatus within the second side body for moving the second side body with respect to the first side body. 2. An elevator for use in wellbore operations, the elevator comprising a first side body with a first front end and a first back end, a second side body with a second front end and a second back end, a space between the first side body and the second side body for receiving a tubular member, the side bodies for supporting a tubular member within the elevator, first release apparatus releasably connecting together the first front end and the second front end, second release apparatus releasably connecting together the first back end and the second back end, and actuation apparatus connected to the elevator for selectively operating a chosen one of the first release apparatus or the second release apparatus, operation apparatus within the second side body for moving the second side body with respect to the first side body, the operation apparatus includes a first piston/cylinder device connected to the first release apparatus, the operation apparatus includes a second piston/cylinder device connected to the second release apparatus, and a fluid channel system within the second side body for conveying fluid under pressure to the first piston/cylinder device and to the second piston/cylinder device. 3. An elevator for use in wellbore operations, the elevator comprising a first side body with a first front end and a first back end, a second side body with a second front end and a second back end, a space between the first side body and the second side body for a tubular member, first release apparatus releasably connecting together the first front end and the second front end, second release apparatus releasably connecting together the first back end and the second back end, actuation apparatus connected to the elevator for selectively operating a chosen one of the first release apparatus or the second release apparatus, operation apparatus within the second side body for moving the second side body with respect to the first side body, the operation apparatus including a first piston/cylinder device connected to the first release apparatus, and a fluid channel system within the second side body for conveying fluid under pressure to the first piston/cylinder device. 4. The elevator of claim 3 further comprising the first release apparatus including first latch apparatus for selectively latching together the first front end and the second front end, the second release apparatus including second latch apparatus for selectively latching together the first back end and the second back end. 5. The elevator of claim 3 wherein the activation apparatus comprises handle apparatus connected to the elevator and manipulable to activate the chosen one of the first release apparatus or the second release apparatus. 6. The elevator of claim 5 wherein the handle apparatus includes a first handle pivotably mounted to the first side body, the first handle pivotable to selectively operate the first release apparatus, and a second handle pivotably mounted to the first side body, the second handle pivotable to selectively operate the second release apparatus. 7. The elevator of claim 6 further comprising a rod extending through a rod channel in the first side body, the rod having a first end and a second end, the first end of the rod connected to the second handle, the second end of the rod connected to the second release apparatus, and the second handle pivotable to move the rod to operate the second release apparatus. 8. The elevator of claim 6 further comprising locking apparatus for selectively locking the elevator closed, preventing the activation apparatus from operating. 9. The elevator of claim 6 further comprising first locking apparatus for selectively locking the first handle and preventing the first handle from pivoting, and second locking apparatus for selectively locking the second handle and preventing the second handle from pivoting. 10. The elevator of claim 3 wherein the operation apparatus includes a second piston/cylinder device connected to the second release apparatus, and the fluid channel system within the second side body is also for conveying fluid under pressure to the second piston/cylinder device. 11. The elevator of claim 10 further comprising a source of fluid under pressure in communication with the fluid channel system, and flow control apparatus for continuously applying fluid under pressure from the source to the piston/cylinder devices to continuously bias the piston/cylinder devices in an elevator-opening configuration. 12. The elevator of claim 10 further comprising each piston/cylinder device having a full stroke length, and retention apparatus for selectively restraining the piston/cylinder devices preventing the piston/cylinder devices from extending to their full stroke lengths so that the release apparatuses are positionable to properly connect ends of the side bodies together. 13. The elevator of claim 3 further comprising at least one first pipe gripping element on an interior of the first side body, and at least one second pipe gripping element on an interior of the second side body. 14. The elevator of claim 3 further comprising a first main pin extending through the first front end of the first side body, the second front end of the second side body and the first release apparatus, the first side body and the second side body pivotable about the first main pin, a second main pin extending through the first back end of the first side body, the second back end of the second side body, and the second release apparatus, the first side body and the second side body pivotable about the second main pin. 15. An elevator for use in wellbore operations, the elevator comprising a first side body with a first front end and a first back end, a second side body with a second front end and a second back end, a space between the first side body and the second side body for a tubular member, first release apparatus releasably connecting together the first front end and the second front end, second release apparatus releasably connecting together the first back end and the second back end, actuation apparatus connected to the elevator for selectively operating a chosen one of the first release apparatus or the second release apparatus, wherein the activation apparatus comprising handle apparatus connected to the elevator and manipulable to activate the chosen one of the first release apparatus or the second release apparatus, the handle apparatus including a first handle pivotably mounted to the first side body, the first handle pivotable to selectively operate the first release apparatus, and a second handle pivotably mounted to the first side body, the second handle pivotable to selectively operate the second release apparatus, a rod extending through a rod channel in the first side body, the rod having a first end and a second end, the first end of the rod connected to the second handle, the second end of the rod connected to the second release apparatus, and the second handle pivotable to move the rod to operate the second release apparatus. 16. The elevator of claim 15 further comprising locking apparatus for selectively locking the elevator closed, preventing the activation apparatus from operating. 17. The elevator of claim 15 further comprising first locking apparatus for selectively locking the first handle and preventing the first handle from pivoting, and second locking apparatus for selectively locking the second handle and preventing the second handle from pivoting. 18. An elevator for use in wellbore operations, the elevator comprising a first side body with a first front end and a first back end, a second side body with a second front end and a second back end, a space between the first side body and the second side body for a tubular member, first release apparatus releasably connecting together the first front end and the second front end, second release apparatus releasably connecting together the first back end and the second back end, actuation apparatus connected to the elevator for selectively operating a chosen one of the first release apparatus or the second release apparatus, a first main pin extending through the first front end of the first side body, the second front end of the second side body and the first release apparatus, the first side body and the second side body pivotable about the first main pin, a second main pin extending through the first back end of the first side body, the second back end of the second side body, and the second release apparatus, the first side body and the second side body pivotable about the second main pin. 19. A method for supporting a tubular member with an elevator in wellbore operations, the method comprising opening an elevator, the elevator comprising a first side body with a first front end and a first back end, a second side body with a second front end and a second back end, a space between the first side body and the second side body for a tubular member, first release apparatus releasably connecting together the first front end and the second front end, second release apparatus releasably connecting together the first back end and the second back end, actuation apparatus connected to the elevator for selectively operating a chosen one of the first release apparatus or the second release apparatus, wherein the activation apparatus comprising handle apparatus connected to the elevator and manipulable to activate the chosen one of the first release apparatus or the second release apparatus, the handle apparatus including a first handle pivotably mounted to the first side body, the first handle pivotable to selectively operate the first release apparatus, and a second handle pivotably mounted to the first side body, the second handle pivotable to selectively operate the second release apparatus, a rod extending through a rod channel in the first side body, the rod having a first end and a second end, the first end of the rod connected to the second handle, the second end of the rod connected to the second release apparatus, and the second handle pivotable to move the rod to operate the second release apparatus, placing a portion of a tubular member within the elevator, and closing the elevator to support the tubular member with the elevator.