DK2184618T3 - Seismisk vibratorarray og fremgangsmåde til anvendelse - Google Patents

Seismisk vibratorarray og fremgangsmåde til anvendelse Download PDF

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Publication number
DK2184618T3
DK2184618T3 DK09172992.1T DK09172992T DK2184618T3 DK 2184618 T3 DK2184618 T3 DK 2184618T3 DK 09172992 T DK09172992 T DK 09172992T DK 2184618 T3 DK2184618 T3 DK 2184618T3
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DK
Denmark
Prior art keywords
seismic
vibrator
spring
vibrators
driver
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DK09172992.1T
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English (en)
Inventor
Stig Rune Lennart Tenghamn
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Pgs Geophysical As
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Publication of DK2184618T3 publication Critical patent/DK2184618T3/da

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/003—Seismic data acquisition in general, e.g. survey design
    • G01V1/006—Seismic data acquisition in general, e.g. survey design generating single signals by using more than one generator, e.g. beam steering or focusing arrays
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/003—Seismic data acquisition in general, e.g. survey design
    • G01V1/005—Seismic data acquisition in general, e.g. survey design with exploration systems emitting special signals, e.g. frequency swept signals, pulse sequences or slip sweep arrangements

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  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Acoustics & Sound (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)

Claims (6)

1. Fremgangsmåde til at generere seismisk energi til underjordisk opmåling, omfattende: at drive en første seismisk vibrator i et vandområde; og at drive mindst en anden seismisk vibrator i et vandområde i alt væsentligt samtidigt med det at drive den første seismiske vibrator, hvor det at drive den første og den mindst ene anden seismiske vibrator inkluderer anvendelse af et drivsignal til hver af den første og den mindst ene anden seismiske vibrator der er i alt væsentligt ukorrelerede med hinanden, hver af den første og mindst ene anden vibrator overfører energi til underjordiske formationer til detektion efter refleksion fra underjordiske egenskaber, hvor hver af den første og den mindst ene anden seismiske vibrator har mindst to resonansfrekvenser i et valgt frekvensbånd, hvor hver af den første og mindst ene anden vibrator omfatter: en bøjningsspændt udvendig skal (2), en magnetostriktiv driver (8) anbragt i den udvendige skal (2), en første fjeder (4) anbragt i den udvendige skal (2) og i funktionel kontakt med driveren (8), kendetegnet ved, at hver af den første og mindst anden vibrator yderligere omfatter en anden fjeder (3) anbragt i den udvendige skal (2) mellem den første fjeder (4) og den udvendige skal (2), den anden fjeder i funktionel kontakt med driveren (8) og den udvendige skal (2), og hvor en massebelastning af den udvendige skal, en fjederkonstant af den første fjeder og den anden fjeder, og en massebelastning på driveren fra den første fjeder vælges til at resultere i de mindst to resonansfrekvenser, når den første og mindst ene anden vibrator anbringes i et vandområde.
2. Fremgangsmåden ifølge krav 1, hvor drivsignalet anvendt til hver af den første og den mindst ene anden seismiske vibrator omfatter en direkte sekvensspredt-spekt rumkode.
3. Fremgangsmåden ifølge krav 2, hvor koden omfatter mindst en afen maksimum længde sekvens, en Gold-sekvens og en Kasami-sekvens.
4. Fremgangsmåden ifølge et hvilket som helst af de foregående krav, yderligere omfattende at detektere seismiske signaler ved en flerhed af med afstand anbragte positioner og at bestemme dele af de detekterede seismiske signaler stammende fra hver af den første og den mindst ene anden seismiske vibrator.
5. Fremgangsmåden ifølge et hvilket som helst af de foregående krav, hvor mindst én af den første og den mindst ene anden vibrator omfatter en flerhed af vibratorer med forskellig frekvensrespons, og hvor drivsignalet anvendt til at drive flerheden af vibratorer omfatter komponenter svarende til frekvensresponset af hver af flerheden af vibratorer.
6. Fremgangsmåden ifølge et hvilket som helst af de foregående krav, hvor hver af vibratorerne omfatter mindst to resonansfrekvenser i et valgt frekvensområde.
DK09172992.1T 2008-11-07 2009-10-14 Seismisk vibratorarray og fremgangsmåde til anvendelse DK2184618T3 (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US12/291,196 US8094514B2 (en) 2008-11-07 2008-11-07 Seismic vibrator array and method for using

Publications (1)

Publication Number Publication Date
DK2184618T3 true DK2184618T3 (da) 2019-02-18

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DK09172992.1T DK2184618T3 (da) 2008-11-07 2009-10-14 Seismisk vibratorarray og fremgangsmåde til anvendelse

Country Status (12)

Country Link
US (1) US8094514B2 (da)
EP (1) EP2184618B1 (da)
CN (1) CN101782657B (da)
AU (1) AU2009222523B2 (da)
BR (1) BRPI0904358A2 (da)
CA (1) CA2679121C (da)
DK (1) DK2184618T3 (da)
EA (1) EA020994B1 (da)
EG (1) EG26789A (da)
MX (1) MX2009012055A (da)
MY (1) MY149074A (da)
SG (1) SG161148A1 (da)

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Also Published As

Publication number Publication date
CA2679121C (en) 2012-10-09
AU2009222523A1 (en) 2010-05-27
US8094514B2 (en) 2012-01-10
CA2679121A1 (en) 2010-05-07
EG26789A (en) 2014-09-14
MX2009012055A (es) 2010-05-06
MY149074A (en) 2013-07-15
EA200901352A1 (ru) 2010-08-30
SG161148A1 (en) 2010-05-27
AU2009222523B2 (en) 2013-01-24
CN101782657A (zh) 2010-07-21
EP2184618A3 (en) 2011-11-02
CN101782657B (zh) 2014-09-10
EP2184618B1 (en) 2018-12-05
EA020994B1 (ru) 2015-03-31
US20100118646A1 (en) 2010-05-13
BRPI0904358A2 (pt) 2011-02-01
AU2009222523A2 (en) 2012-04-12
EP2184618A2 (en) 2010-05-12

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