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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.
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2.发明专利
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.
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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.
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公开(公告)号：NO20061019A
公开(公告)日：2007-04-23
申请号：NO20061019
申请日：2006-03-01
Applicant: WEATHERFORD LAMB
Inventor： BAILEY THOMAS FLOYD , BRUNNERT DAVID J , HAUGEN DAVID MICHAEL , SMITH KEVIN , BANSAL RAM K , FULLER TOM , ROOYAKKERS ROY W , SKINNER GRAHAM , TILTON FREDERICK T
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公开(公告)号：NO20061019L
公开(公告)日：2007-04-23
申请号：NO20061019
申请日：2006-03-01
Applicant: WEATHERFORD LAMB
Inventor： BAILEY THOMAS FLOYD , BRUNNERT DAVID J , HAUGEN DAVID MICHAEL , SMITH KEVIN , BANSAL RAM K , FULLER TOM , ROOYAKKERS ROY W , SKINNER GRAHAM , TILTON FREDERICK T
Abstract: Embodiments of the present invention include methods and apparatus for dynamically controlling pressure within a wellbore while forming the wellbore. In one aspect, one or more pressure control apparatus are used to maintain desired pressure within the wellbore while drilling the wellbore. In another aspect, pressure is dynamically controlled while drilling using foam to maintain a substantially homogenous foam flow regime within the wellbore annulus for carrying cuttings from the wellbore.
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Patent Agency Ranking
公开(公告)号：CA2539266A1
公开(公告)日：2007-04-20
申请号：CA2539266
申请日：2006-03-01
Applicant: WEATHERFORD LAMB
Inventor： BAILEY THOMAS F , HAUGEN DAVID M , SMITH KEVIN W , FULLER TOM , ROOYAKKERS ROY W , BANSAL RAM K , BRUNNERT DAVID J , TILTON FREDERICK T , SKINNER GRAHAM
Abstract: Embodiments of the present invention include methods and apparatus for dynamically controlling pressure within a wellbore while forming the wellbor e. In one aspect, one or more pressure control apparatus are used to maintain desired pressure within the wellbore while drilling the wellbore. In another aspect, pressure is dynamically controlled while drilling using foam to maintain a substantially homogenous foam flow regime within the wellbore annulus for carrying cutting s from the wellbore.
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公开(公告)号：GB2411187B
公开(公告)日：2007-04-11
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: 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.
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公开(公告)号：CA2539266C
公开(公告)日：2011-10-11
申请号：CA2539266
申请日：2006-03-01
Applicant: WEATHERFORD LAMB
Inventor： TILTON FREDERICK T , HAUGEN DAVID M , SMITH KEVIN W , BRUNNERT DAVID J , BAILEY THOMAS F , FULLER TOM , ROOYAKKERS ROY W , BANSAL RAM K , SKINNER GRAHAM
Abstract: Embodiments of the present invention include methods and apparatus for dynamically controlling pressure within a wellbore while forming the wellbore. In one aspect, one or more pressure control apparatus are used to maintain desired pressure within the wellbore while drilling the wellbore. In another aspect, pressure is dynamically controlled while drilling using foam to maintain a substantially homogenous foam flow regime within the wellbore annulus for carrying cuttings from the wellbore.
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公开(公告)号：GB2431942A
公开(公告)日：2007-05-09
申请号：GB0603997
申请日：2006-03-01
Applicant: WEATHERFORD LAMB
Inventor： TILTON FREDERICK T , HAUGEN DAVID M , SMITH KEVIN W , BRUNNERT DAVID J , BAILEY THOMAS F , FULLER TOM , ROOYAKKERS ROY W , BANSAL R K , SKINNER GRAHAM
Abstract: A method for drilling a wellbore comprises circulating a foam F through a tubular body and into the annulus between the tubular body and the wellbore 203, and maintaining a substantially homogenous foam flow regime F using one or more pressure control mechanisms. The control mechanism may be a choke 265, separator, gas injector, downhole lifting device, pump or other Equivalent Circulating Density (ECD) tool. The foam F may be a foamed cement. The homogenous foam flow regime may be maintained by altering foam quality, foam viscosity or foam shear strength.
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公开(公告)号：CA2497027A1
公开(公告)日：2005-08-20
申请号：CA2497027
申请日：2005-02-11
Applicant: WEATHERFORD LAMB
Inventor： BANSAL R K , PAVEL DAVID , LUKE MIKE A , BRUNNERT DAVID , GRAYSON BRIAN , JOHNSON DARRELL , FULLER TOM
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: 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.
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