GB1415706A - Marine seismic prospecting - Google Patents

Marine seismic prospecting

Info

Publication number
GB1415706A
GB1415706A GB3510473A GB3510473A GB1415706A GB 1415706 A GB1415706 A GB 1415706A GB 3510473 A GB3510473 A GB 3510473A GB 3510473 A GB3510473 A GB 3510473A GB 1415706 A GB1415706 A GB 1415706A
Authority
GB
United Kingdom
Prior art keywords
ice
charge
seismic prospecting
sufficient
detonating
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
Application number
GB3510473A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB3510473A priority Critical patent/GB1415706A/en
Priority to NO741958A priority patent/NO741958L/no
Priority to FI1965/74A priority patent/FI196574A/fi
Priority to DK376674AA priority patent/DK139856B/en
Priority to SE7409505A priority patent/SE7409505L/
Priority to CA205,585A priority patent/CA1019433A/en
Publication of GB1415706A publication Critical patent/GB1415706A/en
Expired legal-status Critical Current

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
    • G01V1/104—Generating seismic energy using explosive charges
    • G01V1/13—Arrangements or disposition of charges to produce a desired pattern in space or time

Landscapes

  • 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)

Abstract

1415706 Seismic prospecting IMPERIAL CHEMICAL INDUSTRIES Ltd 21 May 1974 [24 July 1973] 35104/73 Heading H4D In a method of seismic prospecting of an area under ice-covered water, seismic waves are generated by detonating a linear explosive charge suspended substantially vertically in the water at a sufficient depth below the ice to avoid breakage of the ice by the explosion. Embodiments described use PETN detonating cord as the charge, which has a weight on its lower end and is supported by the wires of an electrical detonator taped to the upper end of the charge. Geophones are linearly arranged on top of the ice, and shot holes through the ice are at intervals to give six-fold record stacking. Examples of charge lengths, depths and explosive loadings are given. The depth is preferably sufficient to avoid significant flexure of the ice, and the length sufficient that the gas bubble formed cannot oscillate as a sphere: hence spurious wave generation is minimized.
GB3510473A 1973-07-24 1973-07-24 Marine seismic prospecting Expired GB1415706A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
GB3510473A GB1415706A (en) 1973-07-24 1973-07-24 Marine seismic prospecting
NO741958A NO741958L (en) 1973-07-24 1974-05-29
FI1965/74A FI196574A (en) 1973-07-24 1974-06-26
DK376674AA DK139856B (en) 1973-07-24 1974-07-12 Procedure for seismic prospecting at sea.
SE7409505A SE7409505L (en) 1973-07-24 1974-07-22
CA205,585A CA1019433A (en) 1973-07-24 1974-07-24 Marine selsmic prospecting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3510473A GB1415706A (en) 1973-07-24 1973-07-24 Marine seismic prospecting

Publications (1)

Publication Number Publication Date
GB1415706A true GB1415706A (en) 1975-11-26

Family

ID=10373858

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3510473A Expired GB1415706A (en) 1973-07-24 1973-07-24 Marine seismic prospecting

Country Status (6)

Country Link
CA (1) CA1019433A (en)
DK (1) DK139856B (en)
FI (1) FI196574A (en)
GB (1) GB1415706A (en)
NO (1) NO741958L (en)
SE (1) SE7409505L (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7864628B2 (en) 2008-07-09 2011-01-04 Ion Geophysical Corporation Flexural wave attenuation
US8593905B2 (en) 2009-03-09 2013-11-26 Ion Geophysical Corporation Marine seismic surveying in icy or obstructed waters
US9354343B2 (en) 2009-03-09 2016-05-31 Ion Geophysical Corporation Declination compensation for seismic survey
US9535182B2 (en) 2009-03-09 2017-01-03 Ion Geophysical Corporation Marine seismic surveying with towed components below water surface

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1236558A (en) * 1985-02-18 1988-05-10 Philippe De Heering Method and system for depth sounding

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7864628B2 (en) 2008-07-09 2011-01-04 Ion Geophysical Corporation Flexural wave attenuation
US8593905B2 (en) 2009-03-09 2013-11-26 Ion Geophysical Corporation Marine seismic surveying in icy or obstructed waters
US9354343B2 (en) 2009-03-09 2016-05-31 Ion Geophysical Corporation Declination compensation for seismic survey
US9535182B2 (en) 2009-03-09 2017-01-03 Ion Geophysical Corporation Marine seismic surveying with towed components below water surface
US9604701B2 (en) 2009-03-09 2017-03-28 Ion Geophysical Corporation Marine seismic surveying in icy or obstructed waters
US9766360B2 (en) 2009-03-09 2017-09-19 Ion Geophysical Corporation Marine seismic surveying with towed components below water's surface
US10286981B2 (en) 2009-03-09 2019-05-14 Ion Geophysical Corporation Marine seismic surveying in icy or obstructed waters
US10408959B2 (en) 2009-03-09 2019-09-10 Ion Geophysical Corporation Marine seismic surveying with towed components below water's surface

Also Published As

Publication number Publication date
FI196574A (en) 1975-01-25
NO741958L (en) 1975-02-17
DK139856C (en) 1979-10-08
DK139856B (en) 1979-04-30
CA1019433A (en) 1977-10-18
SE7409505L (en) 1975-01-27
DK376674A (en) 1975-03-10

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee