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1989-03-31 |
1991-06-07 |
Elf Aquitaine |
Dispositif de representation auditive et/ou visuelle des phenomenes mecaniques dans un forage et utilisation du dispositif dans un procede de conduite d'un forage
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GB8916459D0
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1989-07-19 |
1989-09-06 |
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Method of monitoring the drilling of a borehole
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1990-09-14 |
1997-01-10 |
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1999-02-26 |
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Methode de surveillance automatique de l'etat vibratoire d'une garniture de forage.
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1992-02-22 |
1995-03-22 |
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Determination of drill bit rate of penetration from surface measurements
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1993-04-21 |
1993-06-02 |
Db Stratabit Ltd |
Apparatus for indicating wear
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1994-09-23 |
1999-01-26 |
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1996-03-25 |
1998-08-18 |
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1996-03-25 |
2006-04-25 |
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Method and system for predicting performance of a drilling system of a given formation
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1996-03-25 |
2003-09-02 |
Halliburton Energy Services, Inc. |
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1996-10-04 |
1996-11-20 |
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1997-06-25 |
1999-08-06 |
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Methode et systeme de detection de la precession d'un element d'une garniture de forage
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1998-02-05 |
2000-09-15 |
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Sovitelma hydraulisen rikotuslaitteen huollon tarpeen tunnistamiseksi
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JP2000081404A
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1998-06-29 |
2000-03-21 |
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水素量測定装置
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1998-08-04 |
2002-11-20 |
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A method of determining characteristics of a rotary drag-type drill bit
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1998-11-06 |
1998-12-30 |
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Methods and apparatus for detecting torsional vibration in a downhole assembly
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1999-02-24 |
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Method and apparatus for determining potential for drill bit performance
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1999-02-24 |
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2000-06-08 |
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2000-08-09 |
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2000-08-21 |
2003-10-21 |
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System and method for detecting roller bit bearing wear through cessation of roller element rotation
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2000-08-21 |
2003-10-14 |
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2000-09-27 |
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2000-11-07 |
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2000-11-07 |
2004-03-30 |
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Leadless sub assembly for downhole detection system
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2000-11-07 |
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Differential sensor measurement method and apparatus to detect a drill bit failure and signal surface operator
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2000-11-07 |
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Adaptive filter prediction method and system for detecting drill bit failure and signaling surface operator
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2000-11-07 |
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Mean strain ratio analysis method and system for detecting drill bit failure and signaling surface operator
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2002-06-19 |
2005-01-18 |
Bj Services Company |
Apparatus and method of monitoring and signaling for downhole tools
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2003-10-15 |
2004-10-12 |
Reedhyealog L.P. |
Apparatus for weight on bit measurements, and methods of using same
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2004-04-19 |
2008-01-09 |
Halliburton Energy Serv Inc |
Field synthesis system and method for optimizing drilling operations
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2004-06-11 |
2006-01-19 |
Nanonord A/S |
A method for analyzing fundamental frequencies and application of the method
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2005-02-24 |
2008-09-19 |
Georges Renault Soc Par Action |
Outillage comprenant au moins un organe rotatif et des moyens de mesure de frequences vibratoires dudit organe en vue de determiner son etat d'usure, unite de controle et procede correspondants
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2005-11-08 |
2007-05-10 |
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Methods for optimizing efficiency and durability of rotary drag bits and rotary drag bits designed for optimal efficiency and durability
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2006-06-30 |
2008-09-16 |
Baker Hughes Incorporated |
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2006-06-30 |
2008-07-29 |
Baker Huges Incorporated |
Downhole abrading tools having fusible material and methods of detecting tool wear
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2006-06-30 |
2008-12-16 |
Baker Hughes Incorporated |
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2006-06-30 |
2009-02-03 |
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2007-04-30 |
2010-05-18 |
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Fremgangsmate for a detektere en fluidlekkasje tilknyttet en stempelmaskin
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2007-11-30 |
2009-06-18 |
Halliburton Energy Services |
Method and system for predicting performance of a drilling system having multiple cutting structures
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2008-08-27 |
2010-03-01 |
China Steel Corp |
Grind state evaluating method
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2008-10-03 |
2018-04-18 |
Halliburton Energy Services, Inc. |
Method and system for predicting performance of a drilling system
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2008-12-04 |
2011-08-30 |
Baker Hughes Incorporated |
Method of monitoring wear of rock bit cutters
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2008-12-10 |
2017-04-18 |
Baker Hughes Incorporated |
Real time bit monitoring
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2008-12-10 |
2010-06-10 |
Baker Hughes Incorporated |
Real time dull grading
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2010-09-20 |
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Förfarande och anordning för slagverkande sänkhålsborrning
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2011-09-26 |
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Saudi Arabian Oil Company |
Apparatus for evaluating rock properties while drilling using drilling rig-mounted acoustic sensors
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2011-09-26 |
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Methods of evaluating rock properties while drilling using downhole acoustic sensors and a downhole broadband transmitting system
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2011-09-26 |
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Apparatus and methods of evaluating rock properties while drilling using acoustic sensors installed in the drilling fluid circulation system of a drilling rig
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2011-09-26 |
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Methods for evaluating rock properties while drilling using drilling rig-mounted acoustic sensors
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2011-09-26 |
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Apparatus, program product, and methods of evaluating rock properties while drilling using downhole acoustic sensors and a downhole broadband transmitting system
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Identification emitters for determining mill life of a downhole tool and methods of using same
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System and method for analyzing downhole drilling parameters using an opto-analytical device
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System and method for detecting vibrations using an opto-analytical device
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2012-08-31 |
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SYSTEM AND METHOD FOR ANALYSIS OF CUTS USING AN OPTO ANALYTICAL DEVICE
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2012-08-31 |
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System and method for measuring temperature using an opto-analytical device
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2012-08-31 |
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System and method for measuring gaps using an opto-analytical device
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System and method for detecting drilling events using an opto-analytical device
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System and method for determining torsion using an opto-analytical device
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MSE based drilling optimization using neural network simulaton
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