公开(公告)号：GB2404395B

公开(公告)日：2007-06-06

申请号：GB0415449

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

公开(公告)号：CA2651686A1

公开(公告)日：2005-08-20

申请号：CA2651686

申请日：2005-02-11

Applicant: WEATHERFORD LAMB

Inventor： LUKE MIKE A ,  JOHNSON DARRELL ,  FULLER TOM ,  PAVEL DAVID ,  GRAYSON BRIAN ,  BRUNNERT 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: Methods and apparatus for utilizing a downhole deployment valve (DDV) to isolate a pressure in a portion of a bore are disclosed. Any combination of fail safe features may be used with or incorporated into the DDV such as redundant valve members, an upward opening flapper valve or a metering flapper below a sealing valve. In one aspect, a barrier or diverter located in the bore above a valve member of the DDV permits passage through the bore 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, the tool string tripped in above the DDV includes an acceleration actuated brake that anchors the tool string to a surrounding tubular if the tool string is dropped.

公开(公告)号：GB2404395A

公开(公告)日：2005-02-02

申请号：GB0415449

申请日：2004-07-09

Applicant: WEATHERFORD LAMB

Inventor： HOSIE DAVID ,  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: E21B21/00 ,  E21B33/04 ,  E21B34/00 ,  E21B34/16 ,  E21B47/01 ,  E21B47/09 ,  E21B47/12 ,  E21B33/038

Abstract: A casing hanger (920) positioned in a wellhead (910) has an electrical connector (940) which can align with a connection port (912) in the wellhead (910) to allow downhole power and signals communication to be maintained without removing any wellhead valve structure. Alignment wedges can be used to ensure the port (912) and the electrical connector's opening (924) are aligned. The opening (924) can be covered by a debris seal (960) for protection during installation. Also disclosed is an electromagnetic casing string antenna system for two-way communication downhole (see figures 10a-c). Antenna cylinders (1010, figure 10a) can be mounted coaxially on to casing joints (1020, figure 10a) and can be both transmitters and receivers. Also disclosed is an antenna module with sealed induction interface (see figures 13-15). Antenna modules (1320, figure 13) can be mounted in a drill collar (1310, figure 13). The modules are sealed by an epoxy surface (1364, figure 14) which is ground flush to an inside surface (1362, figure 14). The wellhead electrical connector arrangement, casing string antenna system and sealed antenna module can all be used together and are intended to be used in conjunction with a downhole deployment valve (DDV).

公开(公告)号：CA2876482C

公开(公告)日：2019-04-09

申请号：CA2876482

申请日：2012-11-14

Applicant: WEATHERFORD/LAMB INC

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

IPC: E21B21/08 ,  E21B7/00 ,  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：CA2744842C

公开(公告)日：2017-02-07

申请号：CA2744842

申请日：2008-03-31

Applicant: WEATHERFORD/LAMB INC

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：CA2795818A1

公开(公告)日：2013-05-16

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：CA2550453C

公开(公告)日：2009-11-03

申请号：CA2550453

申请日：2006-06-13

Applicant: WEATHERFORD LAMB

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

IPC: E21B21/08 ,  E21B21/10 ,  E21B34/06 ,  E21B34/14 ,  E21B41/00

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 membe r 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：CA2497027C

公开(公告)日：2009-07-21

申请号：CA2497027

申请日：2005-02-11

Applicant: WEATHERFORD LAMB

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

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

Abstract: Methods and apparatus for utilizing a downhole deployment valve (DDV) t o isolate a pressure in a portion of a bore are disclosed. Any combination of fail safe features may be used with or incorporated into the DDV such as redundant val ve members, an upward opening flapper valve or a metering flapper below a seali ng valve. In one aspect, a barrier or diverter located in the bore above a valv e member of the DDV permits passage through the bore when the valve member is open an d 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, the tool string tripped in above the DDV includes an acceleration actuated brake that anchors the tool string to a surrounding tubular if the tool string is dropped.

公开(公告)号：CA2627838A1

公开(公告)日：2008-10-04

申请号：CA2627838

申请日：2008-03-31

Applicant: WEATHERFORD LAMB

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

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 t o close against a seat within the housing. The DDV includes an operating mechanism f or opening/closing the DDV. In use, pressure in one portion of a well that is i n 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：CA2550453A1

公开(公告)日：2006-12-21

申请号：CA2550453

申请日：2006-06-13

Applicant: WEATHERFORD LAMB

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

IPC: E21B21/08 ,  E21B21/10 ,  E21B34/06 ,  E21B34/14 ,  E21B41/00

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 membe r 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.