公开(公告)号：CA2824522C

公开(公告)日：2016-07-12

申请号：CA2824522

申请日：2012-01-23

Applicant: WEATHERFORD/LAMB INC

Inventor： WILSON TIMOTHY L ,  ODELL ALBERT C II

IPC: E21B34/00 ,  E21B21/10 ,  E21B47/12 ,  E21B47/18

Abstract: A method of drilling a wellbore includes drilling the wellbore by injecting drilling fluid through a drill string extending into the wellbore from surface and rotating a drill bit of the drill string. The drill string further includes a circulation sub having a port closed during drilling. The drilling fluid exits the drill bit and carries cuttings from the drill bit. The drilling fluid and cuttings (returns) flow to the surface via an annulus formed between an outer surface of the tubular string and an inner surface of the wellbore. The method further includes after drilling at least a portion of the wellbore: halting drilling; sending a wireless instruction signal from the surface to a downhole portion of the drill string by articulating the drill string, acoustic signal, or mud pulse, thereby opening the port; and injecting drilling fluid through the drill string and into the annulus via the open port.

公开(公告)号：CA2768010C

公开(公告)日：2016-09-20

申请号：CA2768010

申请日：2006-12-12

Applicant: WEATHERFORD/LAMB INC

Inventor： ODELL ALBERT C II ,  GIROUX RICHARD LEE ,  LE TUONG THANH ,  THOMPSON GARY ,  HEIDECKE KARSTEN ,  LORENZ JOERG ,  BOUTWELL DOYLE FREDERIC JR ,  HAYES MICHAEL ,  PIETRAS BERND-GEORG

IPC: E21B19/06

Abstract: Methods and apparatus for running tubulars into and out of a wellbore. A gripping apparatus is activated with an actuator having a primary actuator and a redundant safety feature. The redundant safety feature may include one or more redundant fluid operated pistons. The gripping apparatus may include an integrated safety system adapted to prevent damage to the tubulars while making and breaking out connections between the tubulars and the tubular string.

公开(公告)号：CA2844909C

公开(公告)日：2016-07-12

申请号：CA2844909

申请日：2009-11-10

Applicant: WEATHERFORD/LAMB INC

Inventor： XU WEI JAKE ,  ODELL ALBERT C II ,  HARRALL SIMON J ,  REDLINGER THOMAS M ,  VREELAND CHRISTOPHER M ,  ANTOINE ANDREW ,  BRUNNERT DAVID J ,  LAIRD TOMMY ,  MOODY MICHAEL ,  TILTON FREDERICK T

IPC: E21B10/32

Abstract: Embodiments of the present invention generally relate to extendable cutting tools for use in a well bore. In one embodiment, a tool for use in a wellbore includes a tubular body having a bore therethrough, an opening through a wall thereof, and a connector at each longitudinal end thereof; and an arm. The arm is pivotally connected to a first piston and rotationally coupled to the body, is disposed in the opening in a retracted position, and is movable to an extended position where an outer surface of the arm extends outward past an outer surface of the body. The tool further includes the first piston. The first piston is disposed in the body bore, has a bore therethrough, and is operable to move the arm from the retracted position to the extended position in response to fluid pressure in the piston bore exceeding fluid pressure in the opening. The tool further includes a lock operable to retain the first piston in the retracted position; and a second piston operably coupled to the lock.

公开(公告)号：CA2875794C

公开(公告)日：2017-10-24

申请号：CA2875794

申请日：2013-06-07

Applicant: WEATHERFORD/LAMB INC

Inventor： TEODORESCU SORIN GABRIEL ,  BIRSE SCOTT D ,  ODELL ALBERT C II

IPC: F04C2/107 ,  E21B4/02 ,  E21B47/01

Abstract: A tachometer for a downhole motor includes: a tubular housing having a coupling for connection to a housing of the motor; and a probe. The probe: has a coupling for connection to a rotor of the motor, is movable relative to the tachometer housing, and has at least a portion disposed in a bore of the tachometer housing. The tachometer further includes electronics disposed in the tachometer housing and including: a battery; one or more proximity sensors for tracking an orbit of the probe; and a programmable logic controller (PLC). The PLC is operable: to receive the tracked orbit, and at least one of: to determine an angular speed of the probe using the tracked orbit, and to forecast a remaining lifespan of the motor using the tracked orbit.