NO943974L - Seismisk kilde - Google Patents

Seismisk kilde

Info

Publication number
NO943974L
NO943974L NO943974A NO943974A NO943974L NO 943974 L NO943974 L NO 943974L NO 943974 A NO943974 A NO 943974A NO 943974 A NO943974 A NO 943974A NO 943974 L NO943974 L NO 943974L
Authority
NO
Norway
Prior art keywords
chamber
slide
actuator
solenoid
closing
Prior art date
Application number
NO943974A
Other languages
English (en)
Other versions
NO943974D0 (no
Inventor
Earnest R Harrison
Original Assignee
Western Atlas Int Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Western Atlas Int Inc filed Critical Western Atlas Int Inc
Publication of NO943974D0 publication Critical patent/NO943974D0/no
Publication of NO943974L publication Critical patent/NO943974L/no

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
    • G01V1/02—Generating seismic energy
    • G01V1/133—Generating seismic energy using fluidic driving means, e.g. highly pressurised fluids; using implosion
    • G01V1/137—Generating seismic energy using fluidic driving means, e.g. highly pressurised fluids; using implosion which fluid escapes from the generator in a pulsating manner, e.g. for generating bursts, airguns
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/38—Seismology; Seismic or acoustic prospecting or detecting specially adapted for water-covered areas
    • G01V1/387—Reducing secondary bubble pulse, i.e. reducing the detected signals resulting from the generation and release of gas bubbles after the primary explosion

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Remote Sensing (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Acoustics & Sound (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Oceanography (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Fluid-Damping Devices (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)

Abstract

En seismisk kilde (10) omfatter et legeme (12), et deksel (22), en aktuator (24) og en sleide (26). Legemet (12) omfatter et hovedkammer (14) som er til- dannet deri og innrettet til å motta en ladning komprimert luft. Aktuator (24) er fortrinnsvis en solenoid-aktivert ventil, som er i stand til hurtig åpning og lukking som respons på et elektrisk sig- nal. Den seismiske kilde (10) omfatter et solenoid-formet kammer (38) som er plas- sert inne i en fylningspassasje (34) for å muliggjøre kommunikasjon av et fluid mellom fylningspassasjen (34) og solenoid- kammeret (40). Solenoid-kammerets munning (38) og selve solenoid-kammeret (40) er formet slik at det vil oppvise et hurtig utslipp av luft under høyt trykk gjennom aktuatoren (24) når aktuatoren (24) åpnes for å starte sleidens (26) bevegelse, mens luftstrømmen fra hovedgrenen i fylnings- passasjen (34) og hovedkammeret (14) av- grenses inn i aktuatoren (24), slik at trykket i hovedkammeret (14) forblir høyt nok til å sende ut en passende gassmengde og slik at sleiden (26) ikke hindres fra å lukkes. Et fjærkammer (44) som enten inne- holder komprimert luft eller en mekanisk fjær, oppviser en lukke-kraft som virker på overflaten (46) til sleiden (26). Et lukkekammer (68) er anbragt langs peri- ferien mellom sleiden (26) og dekslet (22), og er innrettet til å motta endel av i luften som frigis fra hovedkammeret (14) under avfyringen for å frembringe en ekstra lukke-kraft på sleiden (26) når den seismiske kilde (10) avfyres. En vannfor- seglende mekanisme (74) forhindrer strøm av fluid fra omgivelsene inn i lukkekam- meret (68) før avfyring.
NO943974A 1993-11-02 1994-10-20 Seismisk kilde NO943974L (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/146,608 US5450374A (en) 1993-11-02 1993-11-02 Air saving sleeve gun

Publications (2)

Publication Number Publication Date
NO943974D0 NO943974D0 (no) 1994-10-20
NO943974L true NO943974L (no) 1995-05-03

Family

ID=22518161

Family Applications (1)

Application Number Title Priority Date Filing Date
NO943974A NO943974L (no) 1993-11-02 1994-10-20 Seismisk kilde

Country Status (4)

Country Link
US (1) US5450374A (no)
EP (1) EP0661557A3 (no)
CA (1) CA2132564C (no)
NO (1) NO943974L (no)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107544088B (zh) * 2017-11-02 2024-01-23 西南石油大学 一种气体钻井井下可控震源短节

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4047591A (en) * 1975-04-03 1977-09-13 Texas Instruments Incorporated Air gun monitoring and synchronizing method and apparatus
US4034827A (en) * 1975-04-03 1977-07-12 Texas Instruments Incorporated Air gun utilizing magnetized shuttle
US4230201A (en) * 1978-07-31 1980-10-28 Texas Instruments Incorporated Air release control in seismic energy source air gun
US4225009A (en) * 1979-04-04 1980-09-30 Texas Instruments Incorporated Internal air release control apparatus air gun
US4219097A (en) * 1979-04-04 1980-08-26 Texas Instruments Incorporated External air release control in seismic air gun
US4623033A (en) * 1983-05-27 1986-11-18 Texas Instruments Incorporated Air release in seismic source air gun
US5144596A (en) * 1989-01-23 1992-09-01 Pascouet Adrien P Marine acoustic source
US5001679A (en) * 1990-01-30 1991-03-19 Halliburton Geophysical Services, Inc. Dual shuttle air gun
WO1992007285A1 (en) * 1990-10-15 1992-04-30 Nauchno-Issledovatelsky Institut Morskoi Geofiziki Proizvodstvennogo Obiedinenia 'sojuzmorgeo' Method and pneumatic source for generation of seismic signal
US5228010A (en) * 1991-06-28 1993-07-13 Halliburton Geophysical Services, Inc. Seismic energy source air gun
CA2055405C (en) * 1991-11-13 1997-04-01 Edward William Mayzes Monoport airgun for seismic exploration having discharge port extending continuously for 360° around its axis
US5263007A (en) * 1992-08-31 1993-11-16 Western Atlas International, Inc. Seismic energy source
US5365493A (en) * 1992-10-15 1994-11-15 Western Atlas Int Inc Air gun

Also Published As

Publication number Publication date
CA2132564C (en) 1998-08-11
NO943974D0 (no) 1994-10-20
EP0661557A2 (en) 1995-07-05
EP0661557A3 (en) 1996-11-13
CA2132564A1 (en) 1995-05-03
US5450374A (en) 1995-09-12

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Legal Events

Date Code Title Description
FC2A Withdrawal, rejection or dismissal of laid open patent application