摘要:
An apparatus for facilitating the connection or disconnection of a tubular to or from a string of tubulars, which apparatus comprises a weight compensating device (20) which can be suspended from a travelling block (6) or a top drive characterised in that said apparatus further comprises at least one bail (2) which can support a primary elevator (10) and which can, in use, be raised and lowered by said weight compensating device (20) to enable a tubular (32) to be raised and lowered with respect to a string of tubulars and which can move to a load bearing position in which it can raise and lower said string of tubulars. An apparatus for facilitating the connection or disconnection of a tubular to or from a string of tubulars, which apparatus comprises a weight compensating device (20) which can be suspended from a travelling block (6) or a top drive characterised in that said apparatus further comprises a member (42) which can support a primary elevator (10) and which can, in use, be raised and lowered by said weight compensating device (20) to enable a tubular (32) to be raised and lowered with respect to a string of tubulars and which can move to a load bearing position in which it can raise and lower said string of tubulars wherein said weight compensating device (20) is arranged between said travelling block (6) or said top drive and said primary elevator (10). This invention also provides a method, a device and an elevator.
摘要:
An apparatus for facilitating the connection or disconnection of a tubular to or from a string of tubulars, which apparatus comprises a weight compensating device (20) which can be suspended from a travelling block (6) or a top drive characterised in that said apparatus further comprises at least one bail (2) which can support a primary elevator (10) and which can, in use, be raised and lowered by said weight compensating device (20) to enable a tubular (32) to be raised and lowered with respect to a string of tubulars and which can move to a load bearing position in which it can raise and lower said string of tubulars. An apparatus for facilitating the connection or disconnection of a tubular to or from a string of tubulars, which apparatus comprises a weight compensating device (20) which can be suspended from a travelling block (6) or a top drive characterised in that said apparatus further comprises a member (42) which can support a primary elevator (10) and which can, in use, be raised and lowered by said weight compensating device (20) to enable a tubular (32) to be raised and lowered with respect to a string of tubulars and which can move to a load bearing position in which it can raise and lower said string of tubulars wherein said weight compensating device (20) is arranged between said travelling block (6) or said top drive and said primary elevator (10). This invention also provides a method, a device and an elevator.
摘要:
A method for connecting a first tubular to a second tubular comprises the steps of supporting said first tubular (101) above said second tubular (104) from a pneumatically operable device (111, 112); and displacing said first tubular (101) downwardly towards said second tubular (104) to facilitate the connection thereof, characterized in that said method further comprises the steps of allowing pneumatic fluid to vent from said pneumatically operable device as said first tubular (101) is lowered towards said second tubular (104) and automatically replenishing said pneumatically operable device (111, 112) after release of said first tubular (101). The present invention also provides an apparatus for carrying out a method in accordance with the invention, which apparatus comprises a pneumatically operable device (111, 112; 211, 212) movable between an upper position (127) and a lower position (128), characterized in that said apparatus further comprises means to vent pneumatic fluid from said pneumatically operable device (111, 112) when, in use, a first tubular (101) is urged towards a second tubular (104), and means (108) to automatically replenish said pneumatically operable device (111, 112) after release of said first tubular (101).
摘要:
A method for connecting a first tubular to a second tubular comprises the steps of supporting said first tubular (101) above said second tubular (104) from a pneumatically operable device (111, 112); and displacing said first tubular (101) downwardly towards said second tubular (104) to facilitate the connection thereof, characterized in that said method further comprises the steps of allowing pneumatic fluid to vent from said pneumatically operable device as said first tubular (101) is lowered towards said second tubular (104) and automatically replenishing said pneumatically operable device (111, 112) after release of said first tubular (101). The present invention also provides an apparatus for carrying out a method in accordance with the invention, which apparatus comprises a pneumatically operable device (111, 112; 211, 212) movable between an upper position (127) and a lower position (128), characterized in that said apparatus further comprises means to vent pneumatic fluid from said pneumatically operable device (111, 112) when, in use, a first tubular (101) is urged towards a second tubular (104), and means (108) to automatically replenish said pneumatically operable device (111, 112) after release of said first tubular (101).