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公开(公告)号：CA2530915A1
公开(公告)日：2006-06-30
申请号：CA2530915
申请日：2005-12-20
Applicant: WEATHERFORD LAMB
Inventor： BOTHNER RONALD E , HAUGEN DAVID M , ROBERTS JOHN DOUGLAS , NERO MICHAEL , HOSIE DAVID G , NUTH DAVID , COLLINS RONALD B , DAVID JOHN , TILTON FREDERICK T , WILSON PAUL
Abstract: The present invention generally relates to an apparatus and a method fo r conveying and operating tools into a wellbore. In one aspect, a method of performing a downhole operation in a wellbore is provided. The method includes pushing a continuous rod into the wellbore, wherein the continuous rod includes a memb er disposed therein. The method further includes positioning the continuous rod proximate at a predetermined location in the wellbore and performing the downhole operation. In yet another aspect, a system for performing a downhole operati on in a wellbore is provided.
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公开(公告)号：GB2404681A
公开(公告)日：2005-02-09
申请号：GB0417792
申请日：2003-01-29
Applicant: WEATHERFORD LAMB
Inventor： NERO MICHAEL , HORST TODD , MORSEY TIMOTHY
IPC: E21B47/12 , H04L12/403 , E21B47/00 , G06F13/42
Abstract: Methods, apparatus and articles of manufacture are provided for a configurable downhole tool (100). The downhole tool (100) includes a plurality of devices (112 1, 112 2, ..., 112n) each of which is configured for one or more functions. At some point during operation (e.g., during system initialization), the presence of each device disposed on the downhole tool is detected. Each device may then begin performing its respective function or functions. For example, some devices (112 1, 112 2, ..., 112n) may be configured to collect environmental data while the tool is disposed in a wellbore. In one embodiment, the collected data is provided to a transceiver. The transceiver (339) then transmits the data from the downhole tool to some remote receiving unit (120), which may be located at the surface of the wellbore.
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公开(公告)号：NO20041391L
公开(公告)日：2004-06-23
申请号：NO20041391
申请日：2004-04-05
Applicant: WEATHERFORD LAMB
Inventor： BAILEY THOMAS FLOYD , WILSON TIMOTHY L , NERO MICHAEL
IPC: E21B7/06 , E21B31/107 , E21B31/113 , E21B47/12
Abstract: The present invention generally provides a downhole tool with an improved means of transmitting data to and from the tool through the use of wired pipe capable of transmitting a signal and/or power between the surface of the well and any components in a drill string. In one aspect, a downhole tool includes a body, and a mandrel disposed in the body and movable in relation to the body. A conducive wire runs the length of the body and permits signals and/or power to be transmitted though the body as the tool changes its length.
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公开(公告)号：CA2643187C
公开(公告)日：2014-12-02
申请号：CA2643187
申请日：2002-10-11
Applicant: WEATHERFORD LAMB
Inventor： BAILEY THOMAS , WILSON TIMOTHY L , NERO MICHAEL
IPC: E21B47/12 , E21B7/06 , E21B23/14 , E21B31/107 , E21B31/113
Abstract: The present invention generally provides a downhole tool with an improved means of transmitting data to and from the tool through the use of wired pipe capable of transmitting a signal and/or power between the surface of the well and any components in a drill string. In one aspect, a downhole tool includes a body, and a mandrel (110) disposed in the body and movable in relation to the body. A conducive wire (135) runs the length of the body and permits signals and/or power to be transmitted through the body as the tool changes its length.
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公开(公告)号：GB2397838B
公开(公告)日：2006-05-17
申请号：GB0407509
申请日：2002-10-11
Applicant: WEATHERFORD LAMB
Inventor： BAILEY THOMAS , WILSON TIMOTHY L , NERO MICHAEL
IPC: E21B31/107 , E21B7/06 , E21B31/113 , E21B47/12
Abstract: The present invention generally provides a downhole tool with an improved means of transmitting data to and from the tool through the use of wired pipe capable of transmitting a signal and/or power between the surface of the well and any components in a drill string. In one aspect, a downhole tool includes a body, and a mandrel disposed in the body and movable in relation to the body. A conducive wire runs the length of the body and permits signals and/or power to be transmitted though the body as the tool changes its length.
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Patent Agency Ranking
公开(公告)号：GB2416463A
公开(公告)日：2006-01-25
申请号：GB0511852
申请日：2005-06-13
Applicant: WEATHERFORD LAMB
Inventor： YOUNG ALLEN , NERO MICHAEL , BARRY LAURENCE , HAWTHORNE HUGH , VILLEREAL ROBERT
Abstract: Rotating tubular elements (10) associated with wellbores can become magnetised and thence induce noise into signals transmitted from downhole logging/measuring while drilling (LWD/MWD) devices (30, 32, 35). The inventors propose systems utilising multiple sensors in order to measure the noise so that it may be cancelled from the signal. In one particular system the magnetic field proximate to the tubular is measured and the processed to create a noise signal for cancelling. In another the electromagnetic signal receivers (151,152) are placed equidistant from and on opposite sides of the wellbore (10). Thus the noise induced by the rotating tubular should be in antiphase at each detector and the noise can be cancelled by simple summation.
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公开(公告)号：GB2397838A
公开(公告)日：2004-08-04
申请号：GB0407509
申请日：2002-10-11
Applicant: WEATHERFORD LAMB
Inventor： BAILEY THOMAS , WILSON TIMOTHY L , NERO MICHAEL
IPC: E21B7/06 , E21B31/107 , E21B31/113 , E21B47/12
Abstract: The present invention generally provides a downhole tool with an improved means of transmitting data to and from the tool through the use of wired pipe capable of transmitting a signal and/or power between the surface of the well and any components in a drill string. In one aspect, a downhole tool includes a body, and a mandrel (110) disposed in the body and movable in relation to the body. A conducive wire (135) runs the length of the body and permits signals and/or power to be transmitted though the body as the tool changes its length.
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公开(公告)号：GB2416463B
公开(公告)日：2009-10-21
申请号：GB0511852
申请日：2005-06-13
Applicant: WEATHERFORD LAMB
Inventor： YOUNG ALLEN , NERO MICHAEL , BARRY LAURENCE , HAWTHORNE HUGH , VILLEREAL ROBERT
Abstract: The present invention generally provides methods and apparatus for reducing noise in a detected electromagnetic wave used to telemeter data during a wellbore operation. In one embodiment, two surface antennae are placed on opposite sides of the wellbore and at the same distance from the wellbore. The signals from the two antennae are summed to reduce the noise in the electromagnetic signal transmitted from the electromagnetic downhole tool.
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公开(公告)号：GB2404401B
公开(公告)日：2006-12-06
申请号：GB0417072
申请日：2004-07-30
Applicant: WEATHERFORD LAMB
Inventor： DOPF TONY , LOGAN DEREK , CAMWELL PAUL , NERO MICHAEL , HORST CLEMENS L
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公开(公告)号：GB2404401A
公开(公告)日：2005-02-02
申请号：GB0417072
申请日：2004-07-30
Applicant: WEATHERFORD LAMB
Inventor： DOPF TONY , LOGAN DEREK , CAMWELL PAUL , NERO MICHAEL , HORST CLEMENS L
Abstract: A subsurface electromagnetic (EM) telemetry system 100 comprises a gap sub assembly 15 having a housing 103, a mandrel 104, a dielectric material (109, figure 2a) disposed between the mandrel 104 and the housing 103, and a first non conductive gap ring 105 disposed between the housing 103 and the mandrel 105. The dielectric material (109, figure 2a) and the first non conductive gap ring 105 create an electrical break between an upper section 10 and a lower section 20 of a drill string 60 to form a large antenna by energising the upper and lower sections 10, 20 with opposite polarity to provide EM waves 30. The EM waves 30 travel through the earth to the surface where a potential difference may be measured between a rig structure 40 and a point 50 on the surface at a predetermined distance away from the rig 40. In a further embodiment, the housing 103 and the mandrel 105 are attached by a threaded connection (107, figure 2a) which allows the housing 103 and the mandrel 105 to remain axially coupled together in the event of failure of the dielectric material (109, figure 2a).
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