摘要:
A subsea fluid connector is disclosed. The body of the connector has a first portion and a connection profile portion, a first port through an outer surface of the first portion, a plurality of openings through an outer surface of the connection profile portion, and a plurality of fluid passages through the body and coupled between the first port and the plurality of openings. The subsea fluid connector may have a first fluid flow path extending through the plurality of fluid passages between the first port through the outer surface of the first portion and the plurality of openings through the outer surface of the connection profile portion, and a second fluid flow path extending through a fluid passage between a second port through the outer surface of the first portion and a third port through the outer surface of the connection profile portion.
摘要:
An underwater connection assembly, and a connection method, for connecting a riser (12) and a flexible pipe (26). The riser (12) has an upper connection end (52) and the flexible pipe (26) has a lower connection end (30). The connection assembly includes a longitudinal frame (36) having a foot (46) rigidly connected to the upper connection end (52) and a head (42) linked to a float (20). A connector (34), and a curved pipe (32) having two opposing ends (62, 64). The opposing end (62) is rigidly connected to the lower connection end (30), and the connector (34) is mounted to the other opposing end (64), to be able to pull the connector (34) towards the upper connection end (52) in a direction oriented from the head (42) to the foot (46).
摘要:
An apparatus and method is provided for controlling the coordination of pressure control equipment such as a BOP stack and/or a snubbing unit and/or other pressure control equipment in a well completion system while moving pipes into or out of a wellbore under pressure. In one embodiment, a moveable clamp and a fixed clamp are provided. The moveable clamp is clamped to a pipe while the fixed clamp is open so that the moveable clamp either moves the pipe into the well or pulls it out of the well. The fixed clamp is then clamped to the pipe. The moveable clamp is unclamped and moves to another position whereupon the process is repeated. A computer controls operation of the moveable clamp, fixed clamp, seals, and pipe moving equipment which moves pipe into and out of the mast.
摘要:
A centralizer is provided for centralizing a tubular, such as a drill pipe, in a wellbore. The centralizer comprises a resilient inner sleeve comprising three or more protruding members extending radially outwardly from an outer surface of the inner sleeve. The inner sleeve receives the tubular and spaces the tubular from the wellbore. The centralizer further comprises an outer support body for receiving the outer surface of inner sleeve. When the inner sleeve is retained between the support body and the tubular, the protruding members project out through windows formed in the support body. The support body and the inner sleeve are retained about the tubular with a pair of annular end collars. A method for replacing worn components of the centralizer is also provided.
摘要:
A system and method for rapidly disconnecting a drilling riser from a floating drilling platform is provided. In one embodiment, the floating drilling platform has a mooring buoy connected to a seabed. The method comprises disconnecting the drilling riser from a subsea component engaged to the seabed, attaching the mooring buoy to the drilling riser, and releasing the mooring buoy and the attached drilling riser from the drilling platform.
摘要:
A method for drilling a wellbore includes drilling the wellbore by injecting drilling fluid into a top of a tubular string disposed in the wellbore at a first flow rate and rotating a drill bit. The tubular string includes: the drill bit disposed on a bottom thereof, tubular joints connected together, a longitudinal bore therethrough, a port through a wall thereof, and a sleeve operable between an open position where the port is exposed to the bore and a closed position where a wall of the sleeve is disposed between the port and the bore. The method further includes moving the sleeve to the open position; and injecting drilling fluid into the port at a second flow rate while adding a tubular joint(s) to the tubular string. The injection of drilling fluid into the tubular string is continuously maintained between drilling and adding the joint(s).
摘要:
A transportable rig apparatus provides single operator control for moving pipe into and out of a wellbore. A transportable control van houses the operator. A rig carrier is utilized to transport the mast. A pipe tong is mounted in the mast and is remotely operable from the control van. Rig blocks which move up and down in the mast are remotely operable from control van. A skid mounted pipe moving member moves pipe to the mast assembly and away from the mast assembly. The pipe moving member remotely is operable from the control van. A pipe tub stores pipe and a pipe tub transfer system is operable for moving pipe from the pipe tub to the pipe moving member and for moving pipe from the pipe moving member to the pipe tub.
摘要:
A top drive torque track system includes a first elongate track with a male end. The male end includes a pin housing and a movable locking pin capable of being biased by a biasing member to extend out of the pin housing and to extend laterally from the male end. The torque track system includes a second elongate track having a female end configured to mate with the male end. The female end has a locking socket extending laterally within the female end. The locking socket is configured to receive the movable locking pin. The movable locking pin is configured to engage the locking socket to attach the first elongate track to the second elongate track when the male end of the first elongate track is inserted into the female end of the second elongate track.
摘要:
A drilling system for drilling vertical holes in a mine roof includes a chuck configured to be driven in rotation by a motorized drill head. The chuck is cylindrical has a bore having a first polygonal inside perimeter. A drill member has an elongated hollow body with a cross section defining a circular outside perimeter over most of its length and a constant, second polygonal inside perimeter along substantially the entire length of the drill member. The drill member has at least one end region having a first polygonal outside perimeter that is sized to fit into the first polygonal inside perimeter to rotationally engage the drill member with the chuck. Drill bits having a bit fixture having a cross section with a second polygonal outside perimeter are sized and configured to fit snugly inside the second polygonal inside perimeter to be mounted to the drill member opposite the chuck.
摘要:
There is disclosed herein drilling apparatus, in particular for use in the field of oil prospecting, comprising: a first tubular member (1, 2, 3); a second tubular member (6, 7, 8, 9) mounted at least partly within the first tubular member so as to be reciprocally free in rotation with respect to the first tubular member about an axis (5); and a drill bit (4) operatively connected to one of the first or second tubular members so as to be rotated in response to the one tubular member being turned in order to effect drilling, characterised in that: the drilling apparatus further comprises a restoring member (18, 36) for applying a forces between the first tubular member and the second tubular member at least in respective first axial directions in response to relative displacement of the first tubular member and the second tubular member in the respective opposite axial directions. Also provided are a tubular assembly and a method of assembling tubular members.