| Patent | Date |
|---|
Electric field communication for short range data transmission in a borehole
Grant 8,981,958 - Price , et al. March 17, 2 | 2015-03-17 |
Electric Field Communication for Short Range Data Transmission in a Borehole
App 20120299743 - Price; Timothy M. ; et al. | 2012-11-29 |
Electric field communication for short range data transmission in a borehole
Grant 8,258,976 - Price , et al. September 4, 2 | 2012-09-04 |
Downhole adjustable bent-angle mechanism for use with a motor for directional drilling
Grant 7,909,117 - Van Steenwyk , et al. March 22, 2 | 2011-03-22 |
Downhole adjustable bent-angle mechanism for use with a motor for directional drilling
App 20100032212 - Van Steenwyk; Donald H. ; et al. | 2010-02-11 |
Motion transducer for motion related to the direction of the axis of an eddy-current displacement sensor
Grant 7,576,532 - Van Steenwyk , et al. August 18, 2 | 2009-08-18 |
Electric field communication for short range data transmission in a borehole
App 20090153355 - Price; Timothy M. ; et al. | 2009-06-18 |
Electric field communication for short range data transmission in a borehole
Grant 7,518,528 - Price , et al. April 14, 2 | 2009-04-14 |
Feedback-controlled piezoelectric force measuring apparatus
Grant 7,434,482 - Van Steenwyk , et al. October 14, 2 | 2008-10-14 |
Electric field communication for short range data transmission in a borehole
App 20080211687 - Price; Timothy M. ; et al. | 2008-09-04 |
Reduced-length measure while drilling apparatus using electric field short range data transmission
App 20080034856 - Van Steenwyk; Donald H. ; et al. | 2008-02-14 |
Steerable drilling apparatus having a differential displacement side-force exerting mechanism
Grant 7,287,605 - Van Steenwyk , et al. October 30, 2 | 2007-10-30 |
Motion transducer for motion related to the direction of the axis of an eddy-current displacement sensor
App 20070229064 - Van Steenwyk; Donald H. ; et al. | 2007-10-04 |
Hydraulic fluid coupling
Grant 7,225,888 - Van Steenwyk , et al. June 5, 2 | 2007-06-05 |
Steerable drilling apparatus having a differential displacement side-force exerting mechanism
App 20060090935 - Van Steenwyk; Donald H. ; et al. | 2006-05-04 |
Inertially-stabilized magnetometer measuring apparatus for use in a borehole rotary environment
Grant 6,816,788 - Van Steenwyk , et al. November 9, 2 | 2004-11-09 |
Method for magnetizing wellbore tubulars
Grant 6,698,516 - Van Steenwyk , et al. March 2, 2 | 2004-03-02 |
Inertially-stabilized magnetometer measuring apparatus for use in a borehole rotary environment
App 20030220743 - Van Steenwyk, Donald H. ; et al. | 2003-11-27 |
Inertially-stabilized magnetometer measuring apparatus for use in a borehole rotary environment
Grant 6,651,496 - Van Steenwyk , et al. November 25, 2 | 2003-11-25 |
Downward communication in a borehole through drill string rotary modulation
Grant 6,608,565 - Van Steenwyk , et al. August 19, 2 | 2003-08-19 |
Inertially-stabilized magnetometer measuring apparatus for use in a borehole rotary environment
App 20030041661 - Van Steenwyk, Donald H. ; et al. | 2003-03-06 |
Method for magnetizing wellbore tubulars
App 20020112856 - Van Steenwyk, Donald H. ; et al. | 2002-08-22 |
Apparatus and method for electric field telemetry employing component upper and lower housings in a well pipestring
Grant 6,396,276 - Van Steenwyk , et al. May 28, 2 | 2002-05-28 |
Electric field borehole telemetry
Grant 6,188,223 - Van Steenwyk , et al. February 13, 2 | 2001-02-13 |
Method to determine local variations of the earth's magnetic field and location of the source thereof
Grant 5,960,370 - Towle , et al. September 28, 1 | 1999-09-28 |
Apparatus and method for electric field telemetry employing component upper and lower housings in a well pipestring
Grant 5,883,516 - Van Steenwyk , et al. March 16, 1 | 1999-03-16 |
Valve assembly for borehole telemetry in drilling fluid
Grant 5,836,353 - Van Steenwyk November 17, 1 | 1998-11-17 |
Pulse production and control in drill strings
Grant 5,740,127 - Van Steenwyk , et al. April 14, 1 | 1998-04-14 |
Downhole drill bit drive motor assembly with an integral bilateral signal and power conduction path
Grant 5,725,061 - Van Steenwyk , et al. March 10, 1 | 1998-03-10 |
Casing joint detector
Grant 5,720,345 - Price , et al. February 24, 1 | 1998-02-24 |
Multi-mode cushioning an instrument suspended in a well
Grant 5,590,714 - Van Steenwyk , et al. January 7, 1 | 1997-01-07 |
Apparatus for locking wire line instrument to drill collar
Grant 5,507,348 - Van Steenwyk , et al. April 16, 1 | 1996-04-16 |
Wireline wet connection
Grant 5,389,003 - Van Steenwyk , et al. February 14, 1 | 1995-02-14 |
Miniature rope socket assembly for combined mechanical and electrical connection in a borehole wireline
Grant 5,366,018 - Van Steenwyk , et al. November 22, 1 | 1994-11-22 |
Direct switching modulation for electromagnetic borehole telemetry
Grant 5,130,706 - Van Steenwyk July 14, 1 | 1992-07-14 |
High speed well surveying and land navigation
Grant 4,920,655 - Van Steenwyk * May 1, 1 | 1990-05-01 |
High speed well surveying and land navigation
Grant 4,833,787 - Van Steenwyk May 30, 1 | 1989-05-30 |
Borehole initial alignment and change determination
Grant 4,706,388 - Van Steenwyk November 17, 1 | 1987-11-17 |
High speed well surveying
Grant 4,611,405 - Van Steenwyk * September 16, 1 | 1986-09-16 |
Well mapping system and method with sensor output compensation
Grant 4,471,533 - Van Steenwyk , et al. September 18, 1 | 1984-09-18 |
High speed well surveying
Grant 4,468,863 - Van Steenwyk September 4, 1 | 1984-09-04 |
Apparatus and method to communicate information in a borehole
Grant 4,459,760 - Watson , et al. July 17, 1 | 1984-07-17 |
Survey apparatus and method employing rate-of-turn and free gyroscopes
Grant 4,297,790 - Van Steenwyk , et al. * November 3, 1 | 1981-11-03 |
Survey apparatus, method employing angular accelerometer
Grant 4,293,046 - Van Steenwyk October 6, 1 | 1981-10-06 |
Mapping apparatus employing two input axis gyroscopic means
Grant 4,199,869 - Van Steenwyk April 29, 1 | 1980-04-29 |
Survey apparatus and method employing rate-of-turn and free gyroscopes
Grant 4,192,077 - Van Steenwyk , et al. March 11, 1 | 1980-03-11 |
Catheter locating device
Grant 4,173,228 - Van Steenwyk , et al. November 6, 1 | 1979-11-06 |
Well Mapping Apparatus And Method
Grant 3,753,296 - Van Steenwyk August 21, 1 | 1973-08-21 |
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