公开(公告)号：AU2011203647A1

公开(公告)日：2012-07-05

申请号：AU2011203647

申请日：2011-01-05

Applicant: WEATHERFORD LAMB

Inventor： BAILEY THOMAS F ,  MITCHELL MARK ,  PAVEL DAVID ,  RING LEV ,  BANSAL RAM K ,  IBLINGS DAVID

IPC: E21B21/10 ,  E21B19/16 ,  E21B21/12

Abstract: A method for drilling a wellbore includes drilling the wellbore by advancing the tubular string longitudinally into the wellbore; stopping drilling by holding the tubular string longitudinally stationary; adding a tubular joint or stand of joints to the tubular string while injecting drilling fluid into a side port of the tubular string, rotating the tubular string, and holding the tubular string longitudinally stationary; and resuming drilling of the wellbore after adding the joint or stand.

公开(公告)号：CA2651686C

公开(公告)日：2012-06-19

申请号：CA2651686

申请日：2005-02-11

Applicant: WEATHERFORD LAMB

Inventor： LUKE MIKE A ,  FULLER TOM ,  JOHNSON DARRELL ,  BRUNNERT DAVID ,  GRAYSON BRIAN ,  PAVEL DAVID ,  BANSAL R K

IPC: E21B34/06 ,  E21B21/00 ,  E21B21/08 ,  E21B21/10 ,  E21B33/04 ,  E21B33/10 ,  E21B34/00 ,  E21B34/08 ,  E21B34/10 ,  E21B34/12 ,  E21B34/14 ,  E21B34/16 ,  E21B40/00 ,  E21B41/00 ,  E21B43/00 ,  E21B47/01 ,  E21B47/09 ,  E21B47/10 ,  E21B47/12

Abstract: A method of inserting a tool string into a wellbore includes inserting a tool string into an upper portion of a wellbore. The upper portion has a casing string. The casing string has a first downhole deployment valve (DDV) and a second DDV. Each DDV includes a valve member. The first valve member is closed and isolates the upper portion from a lower portion of the wellbore. The lower portion is adjacent a hydrocarbon bearing formation and is pressurized by the formation. The second valve member is redundant. The method further includes pressurizing the upper portion; opening the first valve member; and advancing the tool string into the lower portion of the wellbore.

公开(公告)号：CA2784593A1

公开(公告)日：2011-07-14

申请号：CA2784593

申请日：2011-01-05

Applicant: WEATHERFORD LAMB

Inventor： BAILEY THOMAS F ,  MITCHELL MARK ,  PAVEL DAVID ,  RING LEV ,  BANSAL RAM K ,  IBLINGS DAVID

IPC: E21B21/10 ,  E21B19/16 ,  E21B21/12

Abstract: A method for drilling a wellbore includes drilling the wellbore by advancing the tubular string longitudinally into the wellbore; stopping drilling by holding the tubular string longitudinally stationary; adding a tubular joint or stand of joints to the tubular string while injecting drilling fluid into a side port of the tubular string, rotating the tubular string, and holding the tubular string longitudinally stationary; and resuming drilling of the wellbore after adding the joint or stand.

公开(公告)号：GB2427422B

公开(公告)日：2011-01-26

申请号：GB0612016

申请日：2006-06-16

Applicant: WEATHERFORD LAMB

Inventor： NOSKE JOE ,  BRUNNERT DAVID ,  PAVEL DAVID ,  BANSAL R K ,  HAUGEN DAVID ,  LUKE MIKE A

IPC: E21B41/00 ,  E21B34/00 ,  E21B34/06 ,  E21B34/14

Abstract: Methods and apparatus for utilizing a downhole deployment valve (DDV) to isolate a pressure in a portion of a bore are disclosed. The DDV system can include fail safe features such as selectively extendable attenuation members for decreasing a falling object's impact, a normally open back-up valve member for actuation upon failure of a primary valve member, or a locking member to lock a valve member closed and enable disposal of a shock attenuating material on the valve member. Actuation of the DDV system can be electrically operated and can be self contained to operate automatically downhole without requiring control lines to the surface. Additionally, the actuation of the DDV can be based on a pressure supplied to an annulus.

公开(公告)号：CA2744842A1

公开(公告)日：2008-10-04

申请号：CA2744842

申请日：2008-03-31

Applicant: WEATHERFORD LAMB

Inventor： NOSKE JOE ,  IBLINGS DAVID ,  PAVEL DAVID ,  BRUNNERT DAVID J ,  SMITH PAUL ,  GRAYSON MICHAEL BRIAN

IPC: E21B34/06 ,  E21B34/14

Abstract: Methods and apparatus enable reliable and improved isolation between two portions of a bore extending through a casing string disposed in a borehole. A downhole deployment valve (DDV) may provide the isolation utilizing a valve member such as a flapper that is disposed in a housing of the DDV and is designed to close against a seat within the housing. The DDV includes an operating mechanism for opening/closing the DDV. In use, pressure in one portion of a well that is in fluid communication with a well surface may be bled off and open at well surface while maintaining pressure in another portion of the casing string beyond the DDV.

公开(公告)号：GB2411187A

公开(公告)日：2005-08-24

申请号：GB0502884

申请日：2005-02-11

Applicant: WEATHERFORD LAMB

Inventor： LUKE MIKE A ,  FULLER TOM ,  JOHNSON DARRELL ,  BRUNNERT DAVID ,  GRAYSON BRIAN ,  PAVEL DAVID ,  BANSAL R K

IPC: E21B21/00 ,  E21B21/08 ,  E21B21/10 ,  E21B33/04 ,  E21B33/10 ,  E21B34/00 ,  E21B34/06 ,  E21B34/08 ,  E21B34/10 ,  E21B34/12 ,  E21B34/14 ,  E21B34/16 ,  E21B40/00 ,  E21B41/00 ,  E21B43/00 ,  E21B47/01 ,  E21B47/09 ,  E21B47/10 ,  E21B47/12

Abstract: A downhole deployment valve (DDV) system (100) comprises tubular string in a wellbore (104), and object stopping assembly (108) for stopping an object (106) falling toward the valve member (102) prior to the object contacting the valve member. Any combination of valve protection features may be used with or incorporated into the DDV such as redundant valve members (figure 5), an upward opening flapper valve or a metering flapper below a sealing valve. In one aspect, a barrier (101) or diverter (301, figures 3 and 4) located in the bore above a valve member of the DDV permits passage through the bore (104) when the valve member is open and actuates when the valve member is closed. Once actuated, the barrier or diverter either stops or diverts any dropped objects prior to the dropped object reaching and potentially damaging the valve member. In another aspect (figures 6 and 7), the tool string tripped in above the DDV includes an acceleration actuated brake (601, figures 6 and 7) that anchors the tool string to a surrounding tubular if the tool string is dropped.

公开(公告)号：CA2795818C

公开(公告)日：2015-03-17

申请号：CA2795818

申请日：2012-11-14

Applicant: WEATHERFORD LAMB

Inventor： HANNEGAN DON M ,  PENA CESAR ,  PAVEL DAVID ,  GRAYSON MICHAEL BRIAN ,  BOUTALBI SAID ,  COOPER TODD DOUGLAS ,  DUNN TIMOTHY P ,  ZAMORA FRANK JR

IPC: E21B33/14

Abstract: A method of cementing a tubular string in a wellbore includes: deploying the tubular string into the wellbore; pumping cement slurry into the tubular string; launching a cementing plug after pumping the cement slurry; propelling the cementing plug through the tubular string, thereby pumping the cement slurry through the tubular string and into an annulus formed between the tubular string and the wellbore; and controlling flow of fluid displaced from the wellbore by the cement slurry to control pressure of the annulus.

公开(公告)号：CA2848409A1

公开(公告)日：2013-03-28

申请号：CA2848409

申请日：2012-09-20

Applicant: WEATHERFORD LAMB

Inventor： BANSAL RAM K ,  NOSKE JOE ,  MIHALJ MIROSLAV ,  MENARD BILL ,  BAILEY THOMAS F ,  PAVEL DAVID ,  BUCHANAN GERALD WES DON ,  GEORGE GEOFF ,  VIERAITIS DAVID

IPC: E21B17/18

Abstract: A flow sub for use with a drill string includes: a tubular housing having a longitudinal bore formed therethrough and a flow port formed through a wall thereof; a bore valve operable between an open position and a closed position, wherein the bore valve allows free passage through the bore in the open position and isolates an upper portion of the bore from a lower portion of the bore in the closed position; and a sleeve disposed in the housing and movable between an open position where the flow port is exposed to the bore and a closed position where a wall of the sleeve is disposed between the flow port and the bore; and a bore valve actuator operably coupling the sleeve and the bore valve such that opening the sleeve closes the bore valve and closing the sleeve opens the bore valve.

公开(公告)号：CA2473511C

公开(公告)日：2008-05-13

申请号：CA2473511

申请日：2004-07-09

Applicant: WEATHERFORD LAMB

Inventor： YOUNG ALLEN R ,  BANSAL R K ,  LYNCH MICHAEL J ,  NERO KENNETH M ,  ROZEK KENNETH EDMUND ,  NOSKE JOE ,  PAVEL DAVID ,  HOSIE DAVID G ,  THANH LE TUONG ,  ALLEN JACK

IPC: E21B21/00 ,  E21B33/04 ,  E21B34/00 ,  E21B34/16 ,  E21B47/01 ,  E21B47/09 ,  E21B47/12

Abstract: Methods and apparatus for communicating between surface equipment and downho le equipment. One embodiment of the invention provides a wellhead assembly that allows electrical power and signals to pass into and out of the well during drillin g operations, without removing the valve structure above the wellhead. Another embodiment of the invention provides an electromagnetic casing antenna system for two-way communication with downhole tools. Another embodiment of the invention provides an antenna module for a resistivity sub that effectively controls and seals the primary/secondary interface gap.

公开(公告)号：GB2432387B

公开(公告)日：2007-10-24

申请号：GB0625226

申请日：2004-07-09

Applicant: WEATHERFORD LAMB

Inventor： HOSIE DAVID G ,  LYNCH MICHAEL J ,  ALLEN JACK ,  PAVEL DAVID ,  NOSKE JOE ,  YOUNG ALLEN R ,  NERO KENNETH M ,  BANSAL R K ,  LE TUONG THANH ,  ROZEK KENNETH EDMUND

IPC: E21B33/04 ,  E21B21/00 ,  E21B34/00 ,  E21B34/16 ,  E21B47/01 ,  E21B47/09 ,  E21B47/12 ,  H01Q1/04