公开(公告)号：GB2424432B

公开(公告)日：2010-03-17

申请号：GB0604044

申请日：2006-02-28

Applicant: WEATHERFORD LAMB

Inventor： GIROUX RICHARD LEE ,  REID DOUG ,  ODELL ALBERT C II ,  GALLOWAY GREGORY GUY ,  MURRAY MARK J

IPC: E21B7/20

Abstract: Methods and apparatus are provided to place a conductor pipe and a casing in a subsea environment. In one embodiment, a conductor pipe is jetted or drilled into the subsea floor. Thereafter, a casing drilling assembly comprising a drill casing and a drilling assembly is connected to the drill pipe using a crossover. The drilling assembly urged into the seafloor until a casing latch on the drilling assembly is engaged with a casing profile of the conductor pipe. During drilling, instrumentation in the drilling assembly may be used to measure geophysical data. The measured data may be used to optimize the drilling process. After the drill casing is engaged with the conductor pipe, cementing may be performed to set the drill casing.

公开(公告)号：CA2538196C

公开(公告)日：2011-10-11

申请号：CA2538196

申请日：2006-02-28

Applicant: WEATHERFORD LAMB

Inventor： GIROUX RICHARD L ,  REID DOUG ,  ODELL ALBERT C II ,  GALLOWAY GREGORY G ,  MURRAY MARK J

IPC: E21B7/20 ,  E21B7/12

Abstract: Methods and apparatus are provided to place a conductor pipe and a casing in a subsea environment. In one embodiment, a conductor pipe is jetted or drilled into the subsea floor. Thereafter, a casing drilling assembly comprising a drill casing and a drilling assembly is connected to the drill pipe using a crossover. The drilling assembly urged into the seafloor until a casing latch on the drilling assembly is engaged with a casing profile of the conductor pipe. During drilling, instrumentation in the drilling assembly may be used to measure geophysical data. The measured data may be used to optimize the drilling process. After the drill casing is engaged with the conductor pipe, cementing may be performed to set the drill casing.

公开(公告)号：CA2538196A1

公开(公告)日：2006-08-28

申请号：CA2538196

申请日：2006-02-28

Applicant: WEATHERFORD LAMB

Inventor： ODELL ALBERT C II ,  GALLOWAY GREGORY G ,  MURRAY MARK J ,  GIROUX RICHARD L ,  REID DOUG

IPC: E21B7/20 ,  E21B7/12

Abstract: Methods and apparatus are provided to place a conductor pipe and a casing in a subsea environment. In one embodiment, a conductor pipe is jetted or drill ed into the subsea floor. Thereafter, a casing drilling assembly comprising a drill casing and a drilling assembly is connected to the drill pipe using a crossover. The drilling assembly urged into the seafloor until a casing latch on the drilling assemb ly is engaged with a casing profile of the conductor pipe. During drilling, instrumentation in the drilling assembly may be used to measure geophysical data. The measured data may be used to optimize the drilling process. After the drill casing is engaged with the conductor pipe, cementing may be performed to set the drill casing.

公开(公告)号：GB2424432A

公开(公告)日：2006-09-27

申请号：GB0604044

申请日：2006-02-28

Applicant: WEATHERFORD LAMB

Inventor： GIROUX RICHARD L ,  REID DOUG ,  ODELL ALBERT C II ,  GALLOWAY GREGORY GUY ,  MURRAY MARK J

IPC: E21B7/20

Abstract: The invention relates to methods and apparatus to place a conductor pipe and a casing in a subsea environment. The method comprises positioning a first casing in a wellbore, providing a drilling assembly having a second casing, a conveying member having a diameter less than the second casing. A tubular adapter for coupling the conveying member to the second casing, wherein the tubular adapter is adapted to transfer torque from the conveying member to the second casing, a drilling member disposed at a lower end of the second casing, lowering the drilling assembly into the first casing and coupling the second casing to the first casing. A later embodiment relates to a method for lining a portion of a wellbore comprising rotating a casing assembly into the wellbore.