US5960370A
(en)
*
|
1996-08-14 |
1999-09-28 |
Scientific Drilling International |
Method to determine local variations of the earth's magnetic field and location of the source thereof
|
US7002484B2
(en)
|
2002-10-09 |
2006-02-21 |
Pathfinder Energy Services, Inc. |
Supplemental referencing techniques in borehole surveying
|
US6882937B2
(en)
*
|
2003-02-18 |
2005-04-19 |
Pathfinder Energy Services, Inc. |
Downhole referencing techniques in borehole surveying
|
US6937023B2
(en)
*
|
2003-02-18 |
2005-08-30 |
Pathfinder Energy Services, Inc. |
Passive ranging techniques in borehole surveying
|
GB0313281D0
(en)
*
|
2003-06-09 |
2003-07-16 |
Pathfinder Energy Services Inc |
Well twinning techniques in borehole surveying
|
US7027926B2
(en)
*
|
2004-04-19 |
2006-04-11 |
Pathfinder Energy Services, Inc. |
Enhanced measurement of azimuthal dependence of subterranean parameters
|
US7080460B2
(en)
*
|
2004-06-07 |
2006-07-25 |
Pathfinder Energy Sevices, Inc. |
Determining a borehole azimuth from tool face measurements
|
EP1790364B1
(de)
|
2004-08-06 |
2012-09-12 |
Asahi Kasei Medical Co., Ltd. |
Polysulfon-hämodialysator
|
US7219749B2
(en)
*
|
2004-09-28 |
2007-05-22 |
Vector Magnetics Llc |
Single solenoid guide system
|
US7103982B2
(en)
*
|
2004-11-09 |
2006-09-12 |
Pathfinder Energy Services, Inc. |
Determination of borehole azimuth and the azimuthal dependence of borehole parameters
|
CA2727964C
(en)
*
|
2004-12-20 |
2014-02-11 |
Smith International, Inc. |
Magnetization of target well casing string tubulars for enhanced passive ranging
|
US8026722B2
(en)
*
|
2004-12-20 |
2011-09-27 |
Smith International, Inc. |
Method of magnetizing casing string tubulars for enhanced passive ranging
|
US8294468B2
(en)
|
2005-01-18 |
2012-10-23 |
Baker Hughes Incorporated |
Method and apparatus for well-bore proximity measurement while drilling
|
US7436184B2
(en)
*
|
2005-03-15 |
2008-10-14 |
Pathfinder Energy Services, Inc. |
Well logging apparatus for obtaining azimuthally sensitive formation resistivity measurements
|
US7414405B2
(en)
*
|
2005-08-02 |
2008-08-19 |
Pathfinder Energy Services, Inc. |
Measurement tool for obtaining tool face on a rotating drill collar
|
US20070223822A1
(en)
*
|
2006-03-20 |
2007-09-27 |
Pathfinder Energy Services, Inc. |
Data compression method used in downhole applications
|
US7538650B2
(en)
|
2006-07-17 |
2009-05-26 |
Smith International, Inc. |
Apparatus and method for magnetizing casing string tubulars
|
US7712519B2
(en)
|
2006-08-25 |
2010-05-11 |
Smith International, Inc. |
Transverse magnetization of casing string tubulars
|
US7617049B2
(en)
*
|
2007-01-23 |
2009-11-10 |
Smith International, Inc. |
Distance determination from a magnetically patterned target well
|
CA2686716C
(en)
*
|
2007-05-03 |
2015-11-24 |
Smith International, Inc. |
Method of optimizing a well path during drilling
|
US7725263B2
(en)
*
|
2007-05-22 |
2010-05-25 |
Smith International, Inc. |
Gravity azimuth measurement at a non-rotating housing
|
US7558675B2
(en)
*
|
2007-07-25 |
2009-07-07 |
Smith International, Inc. |
Probablistic imaging with azimuthally sensitive MWD/LWD sensors
|
US9121967B2
(en)
|
2007-08-31 |
2015-09-01 |
Baker Hughes Incorporated |
Method and apparatus for well-bore proximity measurement while drilling
|
AU2010226757A1
(en)
*
|
2009-03-17 |
2011-09-08 |
Schlumberger Technology B.V. |
Relative and absolute error models for subterranean wells
|
US8195400B2
(en)
*
|
2009-05-08 |
2012-06-05 |
Smith International, Inc. |
Directional resistivity imaging using harmonic representations
|
US9010461B2
(en)
|
2009-06-01 |
2015-04-21 |
Halliburton Energy Services, Inc. |
Guide wire for ranging and subsurface broadcast telemetry
|
US8912915B2
(en)
|
2009-07-02 |
2014-12-16 |
Halliburton Energy Services, Inc. |
Borehole array for ranging and crosswell telemetry
|
US8271199B2
(en)
*
|
2009-12-31 |
2012-09-18 |
Smith International, Inc. |
Binning method for borehole imaging
|
US9581718B2
(en)
|
2010-03-31 |
2017-02-28 |
Halliburton Energy Services, Inc. |
Systems and methods for ranging while drilling
|
US8600115B2
(en)
|
2010-06-10 |
2013-12-03 |
Schlumberger Technology Corporation |
Borehole image reconstruction using inversion and tool spatial sensitivity functions
|
US9658360B2
(en)
|
2010-12-03 |
2017-05-23 |
Schlumberger Technology Corporation |
High resolution LWD imaging
|
US9238959B2
(en)
|
2010-12-07 |
2016-01-19 |
Schlumberger Technology Corporation |
Methods for improved active ranging and target well magnetization
|
US8856320B2
(en)
*
|
2011-02-16 |
2014-10-07 |
International Business Machines Corporation |
Locating a target computer device in an array
|
US8947094B2
(en)
*
|
2011-07-18 |
2015-02-03 |
Schlumber Technology Corporation |
At-bit magnetic ranging and surveying
|
CN102419457B
(zh)
*
|
2011-07-29 |
2013-04-03 |
重庆大学 |
一种利用单个竖直钻孔的电视图像确定深部岩体结构面产状的方法
|
US9726157B2
(en)
|
2012-05-09 |
2017-08-08 |
Halliburton Energy Services, Inc. |
Enhanced geothermal systems and methods
|
US9151150B2
(en)
|
2012-10-23 |
2015-10-06 |
Baker Hughes Incorporated |
Apparatus and methods for well-bore proximity measurement while drilling
|
US9422803B2
(en)
|
2012-11-01 |
2016-08-23 |
Baker Hughes Incorporated |
Passive magnetic ranging for SAGD and relief wells via a linearized trailing window kalman filter
|
US8960280B2
(en)
*
|
2013-01-23 |
2015-02-24 |
Microseismic, Inc. |
Method for determining fracture plane orientation using passive seismic signals
|
US20140374159A1
(en)
|
2013-06-25 |
2014-12-25 |
Gyrodata, Incorporated |
Positioning techniques in multi-well environments
|
US10094850B2
(en)
|
2014-06-27 |
2018-10-09 |
Schlumberger Technology Corporation |
Magnetic ranging while rotating
|
US10031153B2
(en)
|
2014-06-27 |
2018-07-24 |
Schlumberger Technology Corporation |
Magnetic ranging to an AC source while rotating
|
US11035672B2
(en)
*
|
2015-05-12 |
2021-06-15 |
The Boeing Company |
Sensing of a magnetic target
|
US20170122095A1
(en)
*
|
2015-11-03 |
2017-05-04 |
Ubiterra Corporation |
Automated geo-target and geo-hazard notifications for drilling systems
|
US11151762B2
(en)
|
2015-11-03 |
2021-10-19 |
Ubiterra Corporation |
Systems and methods for shared visualization and display of drilling information
|
US11320560B2
(en)
|
2017-06-08 |
2022-05-03 |
Halliburton Energy Services, Inc. |
Downhole ranging using spatially continuous constraints
|
US11175431B2
(en)
|
2017-06-14 |
2021-11-16 |
Gyrodata, Incorporated |
Gyro-magnetic wellbore surveying
|
US11193363B2
(en)
|
2017-12-04 |
2021-12-07 |
Gyrodata, Incorporated |
Steering control of a drilling tool
|
NO20221360A1
(en)
|
2020-06-10 |
2022-12-19 |
Baker Hughes Oilfield Operations Llc |
Active magnetic ranging by wellhead current injection
|