NO991817D0 - Kansellering av verkt°ymodussignal fra kombinert signal - Google Patents
Kansellering av verkt°ymodussignal fra kombinert signalInfo
- Publication number
- NO991817D0 NO991817D0 NO991817A NO991817A NO991817D0 NO 991817 D0 NO991817 D0 NO 991817D0 NO 991817 A NO991817 A NO 991817A NO 991817 A NO991817 A NO 991817A NO 991817 D0 NO991817 D0 NO 991817D0
- Authority
- NO
- Norway
- Prior art keywords
- signal
- cancellation
- tool mode
- combined
- mode signal
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/40—Seismology; Seismic or acoustic prospecting or detecting specially adapted for well-logging
- G01V1/44—Seismology; Seismic or acoustic prospecting or detecting specially adapted for well-logging using generators and receivers in the same well
- G01V1/46—Data acquisition
Landscapes
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Environmental & Geological Engineering (AREA)
- Geology (AREA)
- Remote Sensing (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Geophysics And Detection Of Objects (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Radar Systems Or Details Thereof (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/733,367 US5780784A (en) | 1996-10-17 | 1996-10-17 | Cancellation of tool mode signal from combined signal |
PCT/US1997/018408 WO1998016854A1 (en) | 1996-10-17 | 1997-10-09 | Cancellation of tool mode signal from combined signal |
Publications (2)
Publication Number | Publication Date |
---|---|
NO991817D0 true NO991817D0 (no) | 1999-04-16 |
NO991817L NO991817L (no) | 1999-05-26 |
Family
ID=24947323
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO991817A NO991817L (no) | 1996-10-17 | 1999-04-16 | Kansellering av verkt°ymodussignal fra kombinert signal |
Country Status (4)
Country | Link |
---|---|
US (1) | US5780784A (no) |
AU (1) | AU4817397A (no) |
NO (1) | NO991817L (no) |
WO (1) | WO1998016854A1 (no) |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6366531B1 (en) * | 1998-09-22 | 2002-04-02 | Dresser Industries, Inc. | Method and apparatus for acoustic logging |
US6564899B1 (en) | 1998-09-24 | 2003-05-20 | Dresser Industries, Inc. | Method and apparatus for absorbing acoustic energy |
US6213250B1 (en) | 1998-09-25 | 2001-04-10 | Dresser Industries, Inc. | Transducer for acoustic logging |
US6801136B1 (en) * | 1999-10-01 | 2004-10-05 | Gas Research Institute | Method of reducing noise in a borehole electromagnetic telemetry system |
US6408978B1 (en) * | 2000-09-15 | 2002-06-25 | Massachusetts Institute Of Technology | Non-acoustic self noise canceller for sensor arrays |
US7357197B2 (en) * | 2000-11-07 | 2008-04-15 | Halliburton Energy Services, Inc. | Method and apparatus for monitoring the condition of a downhole drill bit, and communicating the condition to the surface |
US6470275B1 (en) | 2000-11-14 | 2002-10-22 | Baker Hughes Incorporated | Adaptive filtering with reference accelerometer for cancellation of tool-mode signal in MWD applications |
US6781521B1 (en) | 2001-08-06 | 2004-08-24 | Halliburton Energy Services, Inc. | Filters for canceling multiple noise sources in borehole electromagnetic telemetry system |
US6657597B2 (en) | 2001-08-06 | 2003-12-02 | Halliburton Energy Services, Inc. | Directional signal and noise sensors for borehole electromagnetic telemetry system |
US6781520B1 (en) * | 2001-08-06 | 2004-08-24 | Halliburton Energy Services, Inc. | Motion sensor for noise cancellation in borehole electromagnetic telemetry system |
US7225135B2 (en) * | 2002-04-05 | 2007-05-29 | Lectrosonics, Inc. | Signal-predictive audio transmission system |
US6671224B1 (en) * | 2002-08-26 | 2003-12-30 | Schlumberger Technology Corporation | Active reduction of tool borne noise in a sonic logging tool |
US7639562B2 (en) * | 2006-05-31 | 2009-12-29 | Baker Hughes Incorporated | Active noise cancellation through the use of magnetic coupling |
US7982464B2 (en) * | 2007-05-01 | 2011-07-19 | Halliburton Energy Services, Inc. | Drilling systems and methods using radial current flow for boundary detection or boundary distance estimation |
US8756015B2 (en) * | 2008-08-20 | 2014-06-17 | Baker Hughes Incorporated | Processing of azimuthal resistivity data in a resistivity gradient |
US8559268B2 (en) * | 2008-12-12 | 2013-10-15 | Baker Hughes Incorporated | Multi-frequency borehole imager |
US8305081B2 (en) * | 2009-07-16 | 2012-11-06 | Baker Hughes Incorporated | Cancellation of vibration noise in deep transient resistivity measurements while drilling |
US9115568B2 (en) * | 2009-09-29 | 2015-08-25 | Schlumberger Technology Corporation | Reduction of tool mode and drilling noise in acoustic LWD |
US8542553B2 (en) * | 2010-02-04 | 2013-09-24 | Schlumberger Technology Corporation | Downhole sonic logging tool including irregularly spaced receivers |
US8755248B2 (en) | 2010-05-17 | 2014-06-17 | Schlumberger Technology Corporation | Unipole and bipole acoustic logging while drilling tools |
US8547788B2 (en) | 2010-05-17 | 2013-10-01 | Schlumberger Technology Corporation | Methods for making acoustic anisotropy logging while drilling measurements |
US8559272B2 (en) | 2010-05-20 | 2013-10-15 | Schlumberger Technology Corporation | Acoustic logging while drilling tool having raised transducers |
US8625390B2 (en) | 2010-08-18 | 2014-01-07 | Schlumberger Technology Corporation | Acoustic waveform stacking using azimuthal and/or standoff binning |
WO2014139593A1 (en) * | 2013-03-15 | 2014-09-18 | Statoil Petroleum As | Acoustic measurement tool |
CA2925852A1 (en) | 2013-10-31 | 2015-05-07 | Halliburton Energy Services, Inc. | Acoustic signal attenuator for lwd/mwd logging systems |
US10101483B2 (en) * | 2013-12-19 | 2018-10-16 | Schlumberger Technology Corporation | Vibration control for a cement evaluation tool |
US11466517B2 (en) | 2018-06-20 | 2022-10-11 | Halliburton Energy Services, Inc. | Determining formation characteristics using reference sensor responses recorded during pulsed drilling |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2300048B (en) * | 1995-04-19 | 1999-08-11 | Halliburton Co | Acoustic noise cancelling apparatus for well logging and method of well logging |
-
1996
- 1996-10-17 US US08/733,367 patent/US5780784A/en not_active Expired - Lifetime
-
1997
- 1997-10-09 AU AU48173/97A patent/AU4817397A/en not_active Abandoned
- 1997-10-09 WO PCT/US1997/018408 patent/WO1998016854A1/en active Search and Examination
-
1999
- 1999-04-16 NO NO991817A patent/NO991817L/no not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
AU4817397A (en) | 1998-05-11 |
WO1998016854A1 (en) | 1998-04-23 |
NO991817L (no) | 1999-05-26 |
US5780784A (en) | 1998-07-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FC2A | Withdrawal, rejection or dismissal of laid open patent application |