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11. 发明专利

CA2749692A1 OFFSET STOCHASTIC CONTROL 未知
公开(公告)号：CA2749692A1
公开(公告)日：2010-08-19
申请号：CA2749692
申请日：2009-02-13
申请人： SCHLUMBERGER CA LTD
发明人： JOHNSON ASHLEY , ALDRED WALTER , DOWNTON GEOFFREY , BOUALLEG RIADH , HAUGVALDSTAD KJELL , SHEPPARD MICHAEL
IPC分类号： E21B7/06 , E21B17/10
摘要： This disclosure relates in general to a method and system for controlling a drilling system for drilling a borehole in an earth formation. More specifically, but not by way of limitation, embodiments of the present invention provide systems and methods for controlling dynamic interactions between the drilling system for drilling the borehole and an inner surface of the borehole being drilled to steer the drilling system to directionally drill the borehole. In another embodiment of the present invention, data regarding the functioning of the drilling system as it drills the borehole may be sensed and interactions between the drilling system for drilling the borehole and an inner surface of the borehole may be controlled in response to the sensed data to control the drilling system as the borehole is being drilled.

12. 发明专利

CA2819319A1 OPTIMIZED DRILLING 未知
公开(公告)号：CA2819319A1
公开(公告)日：2012-06-21
申请号：CA2819319
申请日：2011-12-13
申请人： SCHLUMBERGER CA LTD
发明人： RINGER MAURICE , BARRETT MICHAEL , JEFFRYES BENJAMIN , ALDRED WALTER , JOHNSON ASHLEY
IPC分类号： E21B44/06 , E21B10/00 , E21B44/00
摘要： The invention provides a method of optimising the rate of penetration of a hydraulically or pneumatically powered rotor and stator driven drill as it drills a wellbore into the earth, the method comprising: (a) measuring a first set of rotor and stator operating parameters including the weight applied to the drill bit, the speed of rotation of the rotor and rotor torque for a first period of time, (b) generating a first set of relationships from the first set of operating parameters to enable the rotor speed and rotor torque to be predicted over a range of operating parameter values, (c) determining the rate of penetration for the first period of time from measurements of weight applied to the bit and rotation speed of the bit, (d) determining whether any other combination of weight applied to bit and rotation speed of bit, provided by the relationships determined in step (b) are capable of providing a greater rate of penetration, and (e) adjusting at least one operating parameter to move the weight applied to bit and/or speed of rotation of bit towards the combination which provides a first greater rate of penetration.

13. 发明专利

CA2509704C METHOD AND SYSTEM FOR AVERTING OR MITIGATING UNDESIRABLE DRILLING EVENTS 未知
公开(公告)号：CA2509704C
公开(公告)日：2011-05-24
申请号：CA2509704
申请日：2003-12-22
申请人： SCHLUMBERGER CA LTD
发明人： HOTEIT LEILA , DUNLOP JONATHAN , ALDRED WALTER , MEEHAN RICHARD
IPC分类号： E21B44/00
摘要： A method and system for averting or mitigating undesirable drilling events during a drilling process is disclosed. The state of the drilling rig is detected, preferably automatically, based on surface and/or downhole measurement data. One or more undesirable drilling events are detected by correlating the acquired measurement data with the detected state. A drilling rig action is determined which averts or mitigates a detected undesirable drilling event. Finally, the drilling process is overridden by commanding performance of the action. The algorithm used in detecting the most likely rig state is preferably probabilistic in nature, and is even more preferably based on particle filtering techniques.

14. 发明专利

CA2993073A1 SYSTEM AND METHOD FOR ONLINE AUTOMATION 未知
公开(公告)号：CA2993073A1
公开(公告)日：2010-04-22
申请号：CA2993073
申请日：2009-10-14
申请人： SCHLUMBERGER CA LTD
发明人： ALDRED WALTER , DUNLOP JONATHAN , BELASKIE JAMES
IPC分类号： E21B44/00 , E21B47/022
摘要： A changepoint detector for modeling data received from at least one sensor in a process in the hydrocarbon industry. The data is segmented into a plurality of segments and for each segment a model is assigned and the data corresponding to the segment fit to that model. A plurality of segmentations are thus provided and these segmentations are evaluated and assigned weights indicative of the fit of the models of the segmentation to the underlying data. The segmentation models are further used to calculate a result that may be input to a process control program.

15. 发明专利

CA2511203A1 SYSTEM AND METHOD FOR RIG STATE DETECTION 未知
公开(公告)号：CA2511203A1
公开(公告)日：2004-07-15
申请号：CA2511203
申请日：2003-12-22
申请人： SCHLUMBERGER CA LTD
发明人： ORTON MATTHEW RICHARD , ALDRED WALTER , FITZGERALD WILLIAM JOHN , MEEHAN RICHARD , DUNLOP JONATHAN , LESSO WILLIAM
IPC分类号： E21B44/00
摘要： A method and system is disclosed for automatically detecting the state of a drilling rig during the drilling process of a wellbore. Two or more, but preferably four independent input data channels are received, each input dat a channel representing a series of measurements made over time during the drilling process. Based on the input channels the most likely state of the drilling rig is detected from at least three possible rig states. The detection method is preferably probabilistic and even more preferably based on particle filtering techniques. The preferred systems and methods disclosed a re also capable of detecting events and displaying or notifying drilling personnel of the detected events and suggesting corrective action.

16. 发明专利

CA2694858C SYSTEM AND METHOD FOR CONTROLLING A DRILLING SYSTEM FOR DRILLING A BOREHOLE IN AN EARTH FORMATION 未知
公开(公告)号：CA2694858C
公开(公告)日：2018-07-03
申请号：CA2694858
申请日：2008-08-12
申请人： SCHLUMBERGER CA LTD
发明人： JOHNSON ASHLEY , ALDRED WALTER , DOWNTON GEOFFREY , BOUALLEG RIADH , HAUGVALDSTAD KJELL , SHEPPARD MICHAEL
IPC分类号： E21B7/06 , E21B17/10
摘要： A method for using dynamic motion of a drilling system in a borehole being drilled or cored in an earth formation by the drilling system, the drilling system comprising a drill bit and a drill-string, to control the drilling system, comprising: controlling dynamic interactions between a section of the drilling system and an inner surface of said borehole; and using the controlled dynamic interactions between the section of the drilling system and the inner surface of said borehole to control the drilling system and using a drill collar or gauge pad non-concentrically coupled with the drilling system to dynamically interact with the inner surface.

17. 发明专利

CA2734642C SYSTEM AND METHOD FOR ONLINE AUTOMATION 未知
公开(公告)号：CA2734642C
公开(公告)日：2018-03-13
申请号：CA2734642
申请日：2009-10-14
申请人： SCHLUMBERGER CA LTD
发明人： ALDRED WALTER , DUNLOP JONATHAN , BELASKIE JAMES
IPC分类号： E21B44/00
摘要： A changepoint detector for modeling data received from at least one sensor in a proces in the hydrocarbon industry. The data is segmented into a plurality of segments and fo each segment a model is assigned and the data corresponding to the segment fit to tha model. A plurality of segmentations are thus provided and these segmentations ar evaluated and assigned weights indicative of the fit of the models of the segmentation t the underlying data. The segmentation models are further used to calculate a result tha may be input to a process control program.

18. 发明专利

CA2540648C SYSTEM AND METHOD FOR CORRECTING ERRORS IN DEPTH FOR MEASUREMENTS MADE WHILE DRILLING 未知
公开(公告)号：CA2540648C
公开(公告)日：2012-10-30
申请号：CA2540648
申请日：2004-09-28
申请人： SCHLUMBERGER CA LTD
发明人： ALDRED WALTER , RINGER MAURICE
IPC分类号： E21B47/04
摘要： A method and system is disclosed for automatically correcting for depth errors in measurements taken from a drillstring during the drilling phase of the construction of a hydrocarbon wellbore. The correction is based on a stress profile which in turn is based on the states of the drilling rig, drill string description length spec, borehole description trajectory, friction factor and weight on bit.

19. 发明专利

CA2819484A1 MEASURING SPEED OF ROTATION OF A DOWNHOLE MOTOR 未知
公开(公告)号：CA2819484A1
公开(公告)日：2012-06-21
申请号：CA2819484
申请日：2011-12-13
申请人： SCHLUMBERGER CA LTD
发明人： JOHNSON ASHLEY , BARRETT MICHAEL , JEFFRYES BENJAMIN , ALDRED WALTER , RINGER MAURICE
IPC分类号： H02K11/00 , H02K7/14
摘要： The invention relates to downhole motors for rotating drill bits. The downhole motors may comprise stators, turbines or the like. The drilling motor may comprise a drilling apparatus comprising a drill bit connected to a rotor rotatably housed within a stator (or a turbine rotor in a housing), the rotor comprising at least one magnetic field source or magnetic field detector, and the stator comprising at least one magnetic field source if the rotor comprises a magnetic field detector or comprising at least one magnetic field detector if the rotor comprises a magnetic field source, thereby allowing the rotation speed of the rotor relative to the stator to be measured.

20. 发明专利

CA2734642A1 SYSTEM AND METHOD FOR ONLINE AUTOMATION 未知
公开(公告)号：CA2734642A1
公开(公告)日：2010-04-22
申请号：CA2734642
申请日：2009-10-14
申请人： SCHLUMBERGER CA LTD
发明人： ALDRED WALTER , DUNLOP JONATHAN , BELASKIE JAMES
IPC分类号： E21B44/00
摘要： A changepoint detector for modeling data received from at least one sensor in a proces in the hydrocarbon industry. The data is segmented into a plurality of segments and fo each segment a model is assigned and the data corresponding to the segment fit to tha model. A plurality of segmentations are thus provided and these segmentations ar evaluated and assigned weights indicative of the fit of the models of the segmentation t the underlying data. The segmentation models are further used to calculate a result tha may be input to a process control program.

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