DE3380638D1 - Method and apparatus for investigating stand-off in a borehole - Google Patents
Method and apparatus for investigating stand-off in a boreholeInfo
- Publication number
- DE3380638D1 DE3380638D1 DE8383400567T DE3380638T DE3380638D1 DE 3380638 D1 DE3380638 D1 DE 3380638D1 DE 8383400567 T DE8383400567 T DE 8383400567T DE 3380638 T DE3380638 T DE 3380638T DE 3380638 D1 DE3380638 D1 DE 3380638D1
- Authority
- DE
- Germany
- Prior art keywords
- investigating
- borehole
- stand
- investigating stand
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B17/00—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/08—Measuring diameters or related dimensions at the borehole
- E21B47/085—Measuring diameters or related dimensions at the borehole using radiant means, e.g. acoustic, radioactive or electromagnetic
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H5/00—Measuring propagation velocity of ultrasonic, sonic or infrasonic waves, e.g. of pressure waves
-
- 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)
- Geology (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Geophysics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Geochemistry & Mineralogy (AREA)
- Electromagnetism (AREA)
- Acoustics & Sound (AREA)
- Remote Sensing (AREA)
- Geophysics And Detection Of Objects (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/361,224 US4692908A (en) | 1982-03-24 | 1982-03-24 | Method and apparatus for investigating stand-off in a borehole |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3380638D1 true DE3380638D1 (en) | 1989-11-02 |
Family
ID=23421161
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8383400567T Expired DE3380638D1 (en) | 1982-03-24 | 1983-03-18 | Method and apparatus for investigating stand-off in a borehole |
Country Status (19)
Country | Link |
---|---|
US (2) | US4692908A (de) |
EP (1) | EP0089892B1 (de) |
JP (1) | JPS58173478A (de) |
AU (1) | AU558895B2 (de) |
BR (1) | BR8301428A (de) |
CA (1) | CA1192296A (de) |
DE (1) | DE3380638D1 (de) |
DK (1) | DK135083A (de) |
EG (1) | EG15883A (de) |
ES (1) | ES8407147A1 (de) |
GR (1) | GR77432B (de) |
IE (1) | IE55497B1 (de) |
IN (1) | IN158744B (de) |
MX (1) | MX157509A (de) |
NO (1) | NO161406C (de) |
OA (1) | OA07351A (de) |
PH (1) | PH23168A (de) |
SU (1) | SU1531863A3 (de) |
TR (1) | TR21899A (de) |
Families Citing this family (88)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4692908A (en) * | 1982-03-24 | 1987-09-08 | Schlumberger-Doll Research | Method and apparatus for investigating stand-off in a borehole |
IN158732B (de) * | 1982-10-27 | 1987-01-10 | Schlumberger Ltd | |
US4665511A (en) * | 1984-03-30 | 1987-05-12 | Nl Industries, Inc. | System for acoustic caliper measurements |
FR2569859B1 (fr) * | 1984-09-05 | 1986-08-29 | Schlumberger Prospection | Procede et dispositif de diagraphie pour l'inspection acoustique d'un sondage muni d'un tubage |
US4703459A (en) * | 1984-12-03 | 1987-10-27 | Exxon Production Research Company | Directional acoustic logger apparatus and method |
US5212353A (en) * | 1984-12-17 | 1993-05-18 | Shell Oil Company | Transducer system for use with borehole televiewer logging tool |
US4803667A (en) * | 1986-11-13 | 1989-02-07 | Atlantic Richfield Company | Televiewer processing system |
US4780858A (en) * | 1986-12-29 | 1988-10-25 | Shell Oil Company | Borehole televiewer mudcake monitor |
FR2611919B1 (fr) * | 1987-03-05 | 1989-06-16 | Schlumberger Prospection | Sonde de diagraphie equipee de patins de mesure a large champ d'observation angulaire |
US4964101A (en) * | 1989-03-23 | 1990-10-16 | Schlumberger Technology Corp. | Method for determining fluid mobility characteristics of earth formations |
US5012193A (en) * | 1989-11-01 | 1991-04-30 | Schlumberger Technology Corp. | Method and apparatus for filtering data signals produced by exploration of earth formations |
US5214251A (en) * | 1990-05-16 | 1993-05-25 | Schlumberger Technology Corporation | Ultrasonic measurement apparatus and method |
US5130950A (en) * | 1990-05-16 | 1992-07-14 | Schlumberger Technology Corporation | Ultrasonic measurement apparatus |
FR2669743B1 (fr) * | 1990-11-23 | 1993-03-26 | Schlumberger Services Petrol | Dispositif de diagraphie a patin. |
DK12291D0 (da) * | 1991-01-24 | 1991-01-24 | Kurt I Soerensen | Maaleudstyr til elektrisk profilering af et terraen |
US5210495A (en) * | 1991-05-28 | 1993-05-11 | Schlumberger Technology Corp. | Electromagnetic logging method and apparatus with scanned magnetic dipole direction |
US5335542A (en) * | 1991-09-17 | 1994-08-09 | Schlumberger Technology Corporation | Integrated permeability measurement and resistivity imaging tool |
US5200705A (en) * | 1991-10-31 | 1993-04-06 | Schlumberger Technology Corporation | Dipmeter apparatus and method using transducer array having longitudinally spaced transducers |
US5339037A (en) * | 1992-10-09 | 1994-08-16 | Schlumberger Technology Corporation | Apparatus and method for determining the resistivity of earth formations |
US5345179A (en) * | 1992-03-09 | 1994-09-06 | Schlumberger Technology Corporation | Logging earth formations with electromagnetic energy to determine conductivity and permittivity |
US5434507A (en) * | 1992-05-27 | 1995-07-18 | Schlumberger Technology Corporation | Method and apparatus for electromagnetic logging with two dimensional antenna array |
US5463320A (en) * | 1992-10-09 | 1995-10-31 | Schlumberger Technology Corporation | Apparatus and method for determining the resitivity of underground formations surrounding a borehole |
US5339432A (en) * | 1992-10-13 | 1994-08-16 | Microsoft Corporation | Method and system for providing user control of device driver configuration |
US5341345A (en) * | 1993-08-09 | 1994-08-23 | Baker Hughes Incorporated | Ultrasonic stand-off gauge |
CA2133286C (en) * | 1993-09-30 | 2005-08-09 | Gordon Moake | Apparatus and method for measuring a borehole |
US5430259A (en) * | 1993-12-10 | 1995-07-04 | Baker Hughes Incorporated | Measurement of stand-off distance and drilling fluid sound speed while drilling |
US5486695A (en) * | 1994-03-29 | 1996-01-23 | Halliburton Company | Standoff compensation for nuclear logging while drilling systems |
US5502686A (en) * | 1994-08-01 | 1996-03-26 | Western Atlas International | Method and apparatus for imaging a borehole sidewall |
USH1561H (en) * | 1994-09-22 | 1996-07-02 | Exxon Production Research Company | Method and apparatus for detection of seismic and electromagnetic waves |
GB2311859B (en) * | 1995-01-12 | 1999-03-03 | Baker Hughes Inc | A measurement-while-drilling acoustic system employing multiple, segmented transmitters and receivers |
US6614360B1 (en) | 1995-01-12 | 2003-09-02 | Baker Hughes Incorporated | Measurement-while-drilling acoustic system employing multiple, segmented transmitters and receivers |
FR2752876B1 (fr) * | 1996-09-02 | 1998-11-06 | Inst Francais Du Petrole | Dispositif de couplage d'un systeme de reception a la paroi d'un puits |
US6065219A (en) * | 1998-06-26 | 2000-05-23 | Dresser Industries, Inc. | Method and apparatus for determining the shape of an earth borehole and the motion of a tool within the borehole |
US6191588B1 (en) | 1998-07-15 | 2001-02-20 | Schlumberger Technology Corporation | Methods and apparatus for imaging earth formation with a current source, a current drain, and a matrix of voltage electrodes therebetween |
GB2379508B (en) | 2001-04-23 | 2005-06-08 | Computalog Usa Inc | Electrical measurement apparatus and method |
US6618322B1 (en) * | 2001-08-08 | 2003-09-09 | Baker Hughes Incorporated | Method and apparatus for measuring acoustic mud velocity and acoustic caliper |
CA2415921C (en) * | 2002-01-14 | 2013-11-26 | Computalog Usa Inc. | Method and apparatus for full offset resistivity imaging for use in boreholes |
US6758271B1 (en) * | 2002-08-15 | 2004-07-06 | Sensor Highway Limited | System and technique to improve a well stimulation process |
EP1441105B1 (de) * | 2002-12-31 | 2006-03-08 | Services Petroliers Schlumberger | Vorrichtung und Verfahren zur Messung von Ultraschallgeschwindigkeit in Bohrflüssigkeiten |
GB2397893B (en) * | 2003-01-30 | 2005-04-06 | Schlumberger Holdings | Permanently eccentered formation tester |
US7460435B2 (en) * | 2004-01-08 | 2008-12-02 | Schlumberger Technology Corporation | Acoustic transducers for tubulars |
US7397250B2 (en) * | 2004-11-12 | 2008-07-08 | Baker Hughes Incorporated | High resolution resistivity earth imager |
US7350568B2 (en) * | 2005-02-09 | 2008-04-01 | Halliburton Energy Services, Inc. | Logging a well |
US7385401B2 (en) * | 2005-07-08 | 2008-06-10 | Baker Hughes Incorporated | High resolution resistivity earth imager |
NO20070628L (no) * | 2007-02-02 | 2008-08-04 | Statoil Asa | Measurement of rock parameters |
US8174266B2 (en) * | 2008-07-23 | 2012-05-08 | Baker Hughes Incorporated | Multi-resolution borehole resistivity imaging |
US8390294B2 (en) * | 2008-07-23 | 2013-03-05 | Baker Hughes Incorporated | Multi-resolution borehole resistivity imaging |
US20100179762A1 (en) * | 2009-01-12 | 2010-07-15 | Baker Hughes Incorporated | Method of Correcting Imaging Data For Standoff and Borehole Rugosity |
EP2433161B1 (de) * | 2009-05-20 | 2023-08-30 | Halliburton Energy Services Inc. | Bohrlochsensorwerkzeug für nuklearmessungen |
GB2482822B (en) * | 2009-05-20 | 2014-01-15 | Baker Hughes Inc | Methods and apparatus for providing complimentary resistivity and standoff image |
US20120179379A1 (en) * | 2011-01-10 | 2012-07-12 | Saudi Arabian Oil Company | Flow Profile Modeling for Wells |
EP2594735B1 (de) * | 2011-10-28 | 2014-07-02 | Services Pétroliers Schlumberger | Verfahren und System zur Bestimmung des Abstands zwischen einem Bohrwerkzeug und einer geologischen Formation |
EP2626507A1 (de) * | 2011-12-22 | 2013-08-14 | Services Pétroliers Schlumberger | Verfahren und System zur Kalibrierung eines Bohrlochabbildungswerkzeugs |
EP2607929A1 (de) * | 2011-12-23 | 2013-06-26 | Services Pétroliers Schlumberger | Systeme und Verfahren für Bohrlochmessschieber in Schlamm auf Ölbasis |
US9562428B2 (en) * | 2012-02-16 | 2017-02-07 | Baker Hughes Incorporated | System and method to estimate a property in a borehole |
US9260958B2 (en) * | 2012-12-20 | 2016-02-16 | Schlumberger Technology Corporation | System and method for acoustic imaging using a transducer array |
US9213125B2 (en) * | 2013-03-22 | 2015-12-15 | Oliden Technology, Llc | Well logging apparatus and system |
US9664812B2 (en) * | 2013-04-15 | 2017-05-30 | Weatherford Technology Holdings, Llc | Method and apparatus for detection and quantification of borehole standoff |
US9632071B2 (en) * | 2013-07-25 | 2017-04-25 | General Electric Company | Systems and methods for analyzing a multiphase fluid |
US10690805B2 (en) * | 2013-12-05 | 2020-06-23 | Pile Dynamics, Inc. | Borehold testing device |
US9720127B2 (en) | 2014-05-09 | 2017-08-01 | Probe Holdings, Inc. | Caliper tool with in-situ temperature compensation |
CN104500053B (zh) * | 2014-12-11 | 2017-05-10 | 中国石油天然气集团公司 | 一种用于岩样测试的复合探头 |
US9720121B2 (en) * | 2015-01-28 | 2017-08-01 | Baker Hughes Incorporated | Devices and methods for downhole acoustic imaging |
WO2016204775A1 (en) * | 2015-06-19 | 2016-12-22 | Halliburton Energy Services, Inc. | Systems and methods employing an acoustic caliper tool with tool inclination correction |
EP3334900B1 (de) * | 2015-08-14 | 2020-06-03 | Pile Dynamics, Inc. | Bohrlochprüfvorrichtung |
US10281607B2 (en) | 2015-10-26 | 2019-05-07 | Schlumberger Technology Corporation | Downhole caliper using multiple acoustic transducers |
BR112018007018A2 (pt) * | 2015-11-09 | 2018-11-13 | Halliburton Energy Services Inc | calibre de microrresistividade, coluna de perfuração em um poço, e, método para determinar um ou mais parâmetros de poço |
US12038549B2 (en) * | 2016-12-30 | 2024-07-16 | Halliburton Energy Services, Inc. | Tools and methods for reduced mechanical ringing |
EP3673149B1 (de) | 2017-10-31 | 2024-05-01 | Halliburton Energy Services, Inc. | Berechnung des spülungswinkels zur bildgebung von bohrlöchern mit bohrspülungen auf ölbasis |
WO2019088996A1 (en) | 2017-10-31 | 2019-05-09 | Halliburton Energy Services, Inc. | Software tuning of borehole imagers |
MX2020003072A (es) | 2017-10-31 | 2020-07-28 | Halliburton Energy Services Inc | Procesamiento de imagenes de resistividad en pozos con lodos a base de aceite. |
US11377946B2 (en) | 2018-03-13 | 2022-07-05 | Halliburton Energy Services, Inc. | Borehole imaging tool |
US11914097B2 (en) | 2018-03-29 | 2024-02-27 | Halliburton Energy Services, Inc. | Method for combined resistivity and permitivity determination with borehole imagers |
WO2019191476A1 (en) | 2018-03-30 | 2019-10-03 | Halliburton Energy Services, Inc. | Dip detection in logging image processing |
WO2019199992A1 (en) | 2018-04-11 | 2019-10-17 | Halliburton Energy Services, Inc. | A method to estimate formation resistivity |
WO2019203791A1 (en) | 2018-04-16 | 2019-10-24 | Halliburton Energy Services, Inc. | Deconvolution-based enhancement of apparent resistivity and bed boundary identification in borehole resistivity imaging |
US10970814B2 (en) | 2018-08-30 | 2021-04-06 | Halliburton Energy Services, Inc. | Subsurface formation imaging |
BR112021005177B8 (pt) | 2018-11-15 | 2024-03-12 | Halliburton Energy Services Inc | Método e sistema para imageamento de resistividade |
WO2020139363A1 (en) | 2018-12-28 | 2020-07-02 | Halliburton Energy Services, Inc. | An electromagnetic insulating component used in well logging tool pad |
US11836927B2 (en) | 2019-04-24 | 2023-12-05 | Halliburton Energy Services, Inc. | Borehole coring reconstructions using borehole scans |
WO2020231411A1 (en) | 2019-05-14 | 2020-11-19 | Halliburton Energy Services, Inc. | System and method for measuring mud properties |
US11442193B2 (en) | 2019-05-17 | 2022-09-13 | Halliburton Energy Services, Inc. | Passive arm for bi-directional well logging instrument |
US11365625B2 (en) | 2019-10-08 | 2022-06-21 | Halliburton Energy Services, Inc. | Determining broadband mud properties |
CN110708033B (zh) * | 2019-10-18 | 2023-03-31 | 中国电子科技集团公司第二十四研究所 | 用于带宽可重构滤波器的电阻自动校正方法及其电路 |
US11746642B2 (en) | 2019-11-08 | 2023-09-05 | Halliburton Energy Services, Inc. | Electromagnetic imager design |
WO2021179092A1 (en) | 2020-03-13 | 2021-09-16 | Geonomic Technologies Inc. | Method and apparatus for measuring a wellbore |
US11348218B2 (en) | 2020-03-30 | 2022-05-31 | Halliburton Energy Services, Inc. | Hybrid interpretation approach for borehole imaging |
US11549358B2 (en) | 2020-10-22 | 2023-01-10 | Halliburton Energy Services, Inc. | Deep learning methods for enhancing borehole images |
Family Cites Families (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA685727A (en) * | 1964-05-05 | Schlumberger Limited | Method of and apparatus for borehole logging | |
CA765916A (en) * | 1967-08-22 | Threadgold Philip | Method of and apparatus for logging boreholes | |
US2194229A (en) * | 1938-10-15 | 1940-03-19 | Socony Vacuum Oil Co Inc | Apparatus for examining well casings |
US2648056A (en) * | 1948-11-01 | 1953-08-04 | Union Oil Co | Well logging method and apparatus |
US2888824A (en) * | 1955-03-21 | 1959-06-02 | Sperry Prod Inc | Ultrasonic thickness gauge |
BE551765A (de) * | 1955-10-13 | |||
US3130808A (en) * | 1960-09-26 | 1964-04-28 | Texaco Inc | Acoustical well fluid logging |
US3175639A (en) * | 1960-10-19 | 1965-03-30 | Liben William | Method for measuring formation porosity, permeability and mud cake thickness in oil well bore holes by sonic pulses |
US3330374A (en) * | 1965-02-05 | 1967-07-11 | Shell Oil Co | Method and apparatus for correcting acoustical velocity well logs for variation in borehole diameter |
US3436720A (en) * | 1966-10-10 | 1969-04-01 | Dow Chemical Co | Sonar apparatus for measuring underground caverns |
US3564914A (en) * | 1968-08-12 | 1971-02-23 | Sinclair Research Inc | Sequential acoustic and electrical resistivity well-logging device |
US3739328A (en) * | 1970-07-13 | 1973-06-12 | Schlumberger Technology Corp | Acoustic impedance logging using reflection coefficients |
US3978939A (en) * | 1971-05-24 | 1976-09-07 | Schlumberger Technology Corporation | Acoustic well logging methods and apparatus |
FR2172808B1 (de) * | 1972-02-22 | 1978-09-29 | Inst Francais Du Petrole | |
JPS543991B2 (de) * | 1973-06-07 | 1979-02-28 | ||
US4022055A (en) * | 1974-12-02 | 1977-05-10 | Texaco Inc. | Pulse-echo method and system for testing wall thicknesses |
US4170765A (en) * | 1975-04-17 | 1979-10-09 | Marvtek, Corporation | Liquid level sensor |
AU509996B2 (en) * | 1976-05-17 | 1980-06-05 | Schlumberger Technology B.V. | Compensating fcr atilt in boreholes |
US4255798A (en) * | 1978-05-30 | 1981-03-10 | Schlumberger Technology Corp. | Method and apparatus for acoustically investigating a casing and cement bond in a borehole |
JPS5483856A (en) * | 1977-12-16 | 1979-07-04 | Furuno Electric Co | Ultrasonic wave transmitterrreceiver |
US4210969A (en) * | 1978-03-13 | 1980-07-01 | The Stoneleigh Trust | Sonic ranging systems to eliminate errors due to variations in the sound velocity in the medium |
US4346460A (en) * | 1978-07-05 | 1982-08-24 | Schlumberger Technology Corporation | Method and apparatus for deriving compensated measurements in a borehole |
US4271707A (en) * | 1979-11-16 | 1981-06-09 | Northrop Corporation | Received signal encoding and correlating system |
US4281550A (en) * | 1979-12-17 | 1981-08-04 | North American Philips Corporation | Curved array of sequenced ultrasound transducers |
FR2486997A1 (fr) * | 1980-07-15 | 1982-01-22 | Inst Francais Du Petrole | Methode pour determiner le pendage de formations geologiques traversees par un sondage |
US4391124A (en) * | 1981-02-26 | 1983-07-05 | Cornell Research Foundation, Inc. | Electroacoustic transducer calibration method and apparatus |
US4524433A (en) * | 1981-03-10 | 1985-06-18 | Standard Oil Company (Indiana) | High speed sonic logging using multiple transducers |
US4601024A (en) * | 1981-03-10 | 1986-07-15 | Amoco Corporation | Borehole televiewer system using multiple transducer subsystems |
US4468623A (en) * | 1981-07-30 | 1984-08-28 | Schlumberger Technology Corporation | Method and apparatus using pad carrying electrodes for electrically investigating a borehole |
US4692908A (en) * | 1982-03-24 | 1987-09-08 | Schlumberger-Doll Research | Method and apparatus for investigating stand-off in a borehole |
FR2538562B1 (fr) * | 1982-12-27 | 1985-07-19 | Inst Francais Du Petrole | Methode et appareillage de detection des fractures par echographie ultrasonique le long de la paroi d'un materiau ou d'une formation |
-
1982
- 1982-03-24 US US06/361,224 patent/US4692908A/en not_active Expired - Fee Related
-
1983
- 1983-02-24 NO NO830645A patent/NO161406C/no unknown
- 1983-03-18 EP EP83400567A patent/EP0089892B1/de not_active Expired
- 1983-03-18 DE DE8383400567T patent/DE3380638D1/de not_active Expired
- 1983-03-21 BR BR8301428A patent/BR8301428A/pt unknown
- 1983-03-22 MX MX196664A patent/MX157509A/es unknown
- 1983-03-23 AU AU12731/83A patent/AU558895B2/en not_active Ceased
- 1983-03-23 ES ES520875A patent/ES8407147A1/es not_active Expired
- 1983-03-23 GR GR70864A patent/GR77432B/el unknown
- 1983-03-23 SU SU833565745A patent/SU1531863A3/ru active
- 1983-03-23 IE IE635/83A patent/IE55497B1/en not_active IP Right Cessation
- 1983-03-23 CA CA000424211A patent/CA1192296A/en not_active Expired
- 1983-03-23 JP JP58048631A patent/JPS58173478A/ja active Granted
- 1983-03-24 DK DK135083A patent/DK135083A/da not_active Application Discontinuation
- 1983-03-24 IN IN357/CAL/83A patent/IN158744B/en unknown
- 1983-03-24 OA OA57949A patent/OA07351A/xx unknown
- 1983-03-24 PH PH28682A patent/PH23168A/en unknown
- 1983-03-24 TR TR21899A patent/TR21899A/xx unknown
- 1983-03-26 EG EG192/83A patent/EG15883A/xx active
-
1987
- 1987-06-15 US US07/062,787 patent/US4979151A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CA1192296A (en) | 1985-08-20 |
NO830645L (no) | 1983-09-26 |
EP0089892A2 (de) | 1983-09-28 |
IE55497B1 (en) | 1990-10-10 |
NO161406B (no) | 1989-05-02 |
MX157509A (es) | 1988-11-28 |
AU1273183A (en) | 1983-09-29 |
US4979151A (en) | 1990-12-18 |
JPH0415432B2 (de) | 1992-03-17 |
JPS58173478A (ja) | 1983-10-12 |
TR21899A (tr) | 1985-10-11 |
BR8301428A (pt) | 1983-11-29 |
US4692908A (en) | 1987-09-08 |
EP0089892B1 (de) | 1989-09-27 |
OA07351A (en) | 1984-08-31 |
DK135083A (da) | 1983-09-25 |
EP0089892A3 (en) | 1985-05-22 |
ES520875A0 (es) | 1984-09-01 |
IN158744B (de) | 1987-01-17 |
IE830635L (en) | 1983-09-24 |
PH23168A (en) | 1989-05-19 |
GR77432B (de) | 1983-09-14 |
ES8407147A1 (es) | 1984-09-01 |
NO161406C (no) | 1989-08-16 |
EG15883A (en) | 1986-12-30 |
AU558895B2 (en) | 1987-02-12 |
DK135083D0 (da) | 1983-03-24 |
SU1531863A3 (ru) | 1989-12-23 |
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