NL7314460A - Underwater seismic research system - uses a number of explosive charges of different sizes spaced apart - Google Patents

Underwater seismic research system - uses a number of explosive charges of different sizes spaced apart

Info

Publication number
NL7314460A
NL7314460A NL7314460A NL7314460A NL7314460A NL 7314460 A NL7314460 A NL 7314460A NL 7314460 A NL7314460 A NL 7314460A NL 7314460 A NL7314460 A NL 7314460A NL 7314460 A NL7314460 A NL 7314460A
Authority
NL
Netherlands
Prior art keywords
charges
spaced apart
different sizes
explosive charges
research system
Prior art date
Application number
NL7314460A
Other languages
Dutch (nl)
Original Assignee
Petty Ray Geophysical 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 Petty Ray Geophysical Inc filed Critical Petty Ray Geophysical Inc
Priority to NL7314460A priority Critical patent/NL7314460A/en
Publication of NL7314460A publication Critical patent/NL7314460A/en

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
    • G01V1/38—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)
  • Oceanography (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)

Abstract

The seismic system involves the use of a train of explosive charges at successively larger spacings and increasing gas volumes situated at a similar depth below the water surface. Each of the charges (18, 20, 22, 24, 26, 28, 30) is supported by its own float (32, 34, 36, 38, 40, 42, 44). The number of units is not greater than seven. Each air chamber attached to the cannon has a secondary chamber with a volume of about one-third of the first chamber to generate a secondary seismic wave. The time intervals between the detonation of the charges is regulated by a control circuit. The connecting cable to the survey vessel is connected at the end nearest the largest explosive charge.
NL7314460A 1973-10-19 1973-10-19 Underwater seismic research system - uses a number of explosive charges of different sizes spaced apart NL7314460A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL7314460A NL7314460A (en) 1973-10-19 1973-10-19 Underwater seismic research system - uses a number of explosive charges of different sizes spaced apart

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7314460A NL7314460A (en) 1973-10-19 1973-10-19 Underwater seismic research system - uses a number of explosive charges of different sizes spaced apart

Publications (1)

Publication Number Publication Date
NL7314460A true NL7314460A (en) 1975-04-22

Family

ID=19819853

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7314460A NL7314460A (en) 1973-10-19 1973-10-19 Underwater seismic research system - uses a number of explosive charges of different sizes spaced apart

Country Status (1)

Country Link
NL (1) NL7314460A (en)

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