US4399692A
(en)
*
|
1981-01-13 |
1983-08-23 |
Sundstrand Data Control Group |
Borehole survey apparatus utilizing accelerometers and probe joint measurements
|
US4434654A
(en)
*
|
1982-08-09 |
1984-03-06 |
Sundstrand Data Control, Inc. |
Borehole orientation detection system employing polarized radiation
|
AU1854783A
(en)
*
|
1982-09-11 |
1984-03-15 |
Nl Sperry-Sun Inc. |
Surveying a borehole
|
US4542647A
(en)
*
|
1983-02-22 |
1985-09-24 |
Sundstrand Data Control, Inc. |
Borehole inertial guidance system
|
CA1211506A
(en)
*
|
1983-02-22 |
1986-09-16 |
Sundstrand Data Control, Inc. |
Borehole inertial guidance system
|
US4510696A
(en)
*
|
1983-07-20 |
1985-04-16 |
Nl Industries, Inc. |
Surveying of boreholes using shortened non-magnetic collars
|
US4570353A
(en)
*
|
1984-12-31 |
1986-02-18 |
Exxon Production Research Co. |
Magnetic single shot inclinometer
|
JPS63161174U
(en)
*
|
1987-04-11 |
1988-10-21 |
|
|
GB8726597D0
(en)
*
|
1987-11-13 |
1987-12-16 |
Measurement Devices Ltd |
Measuring borehole derivation
|
US4956921A
(en)
*
|
1989-02-21 |
1990-09-18 |
Anadrill, Inc. |
Method to improve directional survey accuracy
|
JP2637630B2
(en)
*
|
1991-01-30 |
1997-08-06 |
三菱電機株式会社 |
Method and apparatus for detecting control information
|
FI920754A0
(en)
*
|
1992-02-21 |
1992-02-21 |
Novatron |
FOERFARANDE FOER ATT DEFINIERA LAEGET AV ETT LAONGSTRAECKT STYCKE.
|
AT399000B
(en)
*
|
1992-11-06 |
1995-02-27 |
Porr Technobau Aktiengesellsch |
DETECTING THE SLOPE OF BURCHES
|
CA2134191C
(en)
*
|
1993-11-17 |
2002-12-24 |
Andrew Goodwin Brooks |
Method of correcting for axial and transverse error components in magnetometer readings during wellbore survey operations
|
US5452518A
(en)
*
|
1993-11-19 |
1995-09-26 |
Baker Hughes Incorporated |
Method of correcting for axial error components in magnetometer readings during wellbore survey operations
|
DE19617326A1
(en)
*
|
1996-04-30 |
1997-11-06 |
Sel Alcatel Ag |
Method and device for detecting the acceleration of a multi-unit rail vehicle
|
US5880680A
(en)
*
|
1996-12-06 |
1999-03-09 |
The Charles Machine Works, Inc. |
Apparatus and method for determining boring direction when boring underground
|
EP0857855B1
(en)
*
|
1997-02-06 |
2002-09-11 |
Halliburton Energy Services, Inc. |
Downhole directional measurement system
|
GB9717975D0
(en)
|
1997-08-22 |
1997-10-29 |
Halliburton Energy Serv Inc |
A method of surveying a bore hole
|
US6243657B1
(en)
|
1997-12-23 |
2001-06-05 |
Pii North America, Inc. |
Method and apparatus for determining location of characteristics of a pipeline
|
GB9812006D0
(en)
|
1998-06-05 |
1998-07-29 |
Concept Systems Limited |
Sensor apparatus
|
GB9818117D0
(en)
*
|
1998-08-19 |
1998-10-14 |
Halliburton Energy Serv Inc |
Surveying a subterranean borehole using accelerometers
|
US6553322B1
(en)
*
|
1999-09-29 |
2003-04-22 |
Honeywell International Inc. |
Apparatus and method for accurate pipeline surveying
|
DE19960036C1
(en)
*
|
1999-12-13 |
2001-07-05 |
Keller Grundbau Gmbh |
Method of measuring a borehole
|
US7002484B2
(en)
*
|
2002-10-09 |
2006-02-21 |
Pathfinder Energy Services, Inc. |
Supplemental referencing techniques in borehole surveying
|
US6937023B2
(en)
|
2003-02-18 |
2005-08-30 |
Pathfinder Energy Services, Inc. |
Passive ranging techniques in borehole surveying
|
US6882937B2
(en)
|
2003-02-18 |
2005-04-19 |
Pathfinder Energy Services, Inc. |
Downhole referencing techniques in borehole surveying
|
GB0313281D0
(en)
|
2003-06-09 |
2003-07-16 |
Pathfinder Energy Services Inc |
Well twinning techniques in borehole surveying
|
US7080460B2
(en)
|
2004-06-07 |
2006-07-25 |
Pathfinder Energy Sevices, Inc. |
Determining a borehole azimuth from tool face measurements
|
US7725263B2
(en)
|
2007-05-22 |
2010-05-25 |
Smith International, Inc. |
Gravity azimuth measurement at a non-rotating housing
|
US8136383B2
(en)
|
2007-08-28 |
2012-03-20 |
Westerngeco L.L.C. |
Calibrating an accelerometer
|
JP2009186244A
(en)
*
|
2008-02-04 |
2009-08-20 |
Kochi Univ Of Technology |
Tilt angle estimation system, relative angle estimation system, and angular velocity estimation system
|
KR101124272B1
(en)
*
|
2008-10-27 |
2012-03-27 |
이승목 |
Geographical displacement sensing unit
|
JP2010271225A
(en)
*
|
2009-05-22 |
2010-12-02 |
Tamagawa Seiki Co Ltd |
Pipeline measuring apparatus
|
US9010170B2
(en)
|
2010-08-16 |
2015-04-21 |
Westerngeco L.L.C. |
Method and apparatus to test an accelerometer
|
US9217805B2
(en)
|
2010-10-01 |
2015-12-22 |
Westerngeco L.L.C. |
Monitoring the quality of particle motion data during a seismic acquisition
|
JP5933238B2
(en)
*
|
2011-12-01 |
2016-06-08 |
ライト工業株式会社 |
Hole trajectory measuring device and measuring method
|
JP5424224B2
(en)
*
|
2012-04-16 |
2014-02-26 |
公立大学法人高知工科大学 |
Relative angle estimation system
|
JP5424226B2
(en)
*
|
2012-07-19 |
2014-02-26 |
公立大学法人高知工科大学 |
Inclination angle estimation system
|
CN102927955A
(en)
*
|
2012-10-25 |
2013-02-13 |
陕西科技大学 |
Turning point angle measuring instrument for turning point stake of petroleum pipelines
|
FR2999698B1
(en)
|
2012-12-19 |
2015-01-16 |
Technip France |
METHOD FOR DETERMINING THE BENDING OF A TUBULAR STRUCTURE
|
FR3029281B1
(en)
*
|
2014-12-01 |
2018-06-15 |
Commissariat A L'energie Atomique Et Aux Energies Alternatives |
ELECTRONIC METHOD AND COMPUTER FOR DETERMINING THE TRACK OF A MOBILE OBJECT
|
RU2610957C1
(en)
*
|
2015-12-09 |
2017-02-17 |
Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Уфимский государственный авиационный технический университет" |
Method of determination of set of angular parameters of spatial orientation of drilling tools
|
DE102016103166A1
(en)
|
2016-02-23 |
2017-08-24 |
Enoware Gmbh |
Sensor system and method for the spatial progression measurement of a borehole
|
CN109973011A
(en)
*
|
2019-03-20 |
2019-07-05 |
湖北省水利水电规划勘测设计院 |
A kind of boring method and drilling equipment improving bench blasting presplitting hole drill hole precision
|
GB2584840B
(en)
*
|
2019-06-14 |
2022-06-08 |
Senceive Ltd |
Sensor system, sensing element and methods
|
CN110375697A
(en)
*
|
2019-07-19 |
2019-10-25 |
武汉理工大学 |
It is a kind of support ROV/AUV underwater operation cable bend form estimation and visualization system
|
CN110906850B
(en)
*
|
2019-12-04 |
2021-04-27 |
昆明理工大学 |
Accurate positioning device and method for inclined deep hole sensor
|
CA3175094A1
(en)
|
2020-03-13 |
2021-09-16 |
Geonomic Technologies Inc. |
Method and apparatus for measuring a wellbore
|
CN112362030A
(en)
*
|
2020-10-30 |
2021-02-12 |
晋城蓝焰煤业股份有限公司 |
Method for determining angle of attack of underground coal mine support pillar
|
CN112525115B
(en)
*
|
2020-10-30 |
2023-06-23 |
华侨大学 |
Sea cliff sea erosion groove geometric form measuring device and measuring method
|
CN114580469A
(en)
*
|
2022-02-23 |
2022-06-03 |
国家石油天然气管网集团有限公司 |
Elbow identification method based on IMU detection
|