GB1165834A - Depth Control System for Marine Seismic Surveying - Google Patents

Depth Control System for Marine Seismic Surveying

Info

Publication number
GB1165834A
GB1165834A GB2513467A GB2513467A GB1165834A GB 1165834 A GB1165834 A GB 1165834A GB 2513467 A GB2513467 A GB 2513467A GB 2513467 A GB2513467 A GB 2513467A GB 1165834 A GB1165834 A GB 1165834A
Authority
GB
United Kingdom
Prior art keywords
container
ship
depth
cable
resistor
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
GB2513467A
Inventor
George Bernard Loper
Julius Podhrasky
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.)
ExxonMobil Oil Corp
Original Assignee
Mobil Oil Corp
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 Mobil Oil Corp filed Critical Mobil Oil Corp
Priority to GB2513467A priority Critical patent/GB1165834A/en
Publication of GB1165834A publication Critical patent/GB1165834A/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
    • G01V1/38—Seismology; Seismic or acoustic prospecting or detecting specially adapted for water-covered areas
    • G01V1/3817—Positioning of seismic devices
    • G01V1/3826—Positioning of seismic devices dynamic steering, e.g. by paravanes or birds

Abstract

1,165,834. Seismic prospecting. MOBIL OIL CORP. 31 May, 1967, No. 25134/67. Heading H4D. [Also in Division G3] A seismic head is attached to a container which is towed behind a ship and maintained at a constant depth by automatically controlling the supply or withdrawal of gas to or from the container through a tube connected to the ship so as to eject or admit water as necessary to increase or decrease buoyancy of the container. In Fig. 1, gas within a container 10 towed at the end of a cable 13 by a ship 12 is supplied or withdrawn through a flexible tube 15, according to the position of electromagnetically operated valves within a unit 16 mounted on the ship, so that water is ejected or admitted through a hole 14 to cause the container to rise or sink. Container 10 is kept upright by a keel 44 and contains a resistor 18 which is varied by hydrostatic pressure and hence depth. Resistor 18 is connected through cable 13 to control the electromagnetic valves and thereby correct the depth. A seismic survey head 11 having neutral buoyancy is attached to the container by a cable 43 and signals from it pass through cables 42, 13 to recording gear on the ship. The container may be raised to the surface, for towing to the site, by operation of a switch to short circuit the depth setting resistor.
GB2513467A 1967-05-31 1967-05-31 Depth Control System for Marine Seismic Surveying Expired GB1165834A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2513467A GB1165834A (en) 1967-05-31 1967-05-31 Depth Control System for Marine Seismic Surveying

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2513467A GB1165834A (en) 1967-05-31 1967-05-31 Depth Control System for Marine Seismic Surveying

Publications (1)

Publication Number Publication Date
GB1165834A true GB1165834A (en) 1969-10-01

Family

ID=10222758

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2513467A Expired GB1165834A (en) 1967-05-31 1967-05-31 Depth Control System for Marine Seismic Surveying

Country Status (1)

Country Link
GB (1) GB1165834A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2440418A (en) * 2006-07-21 2008-01-30 Pgs Geophysical As Seismic source having depth-control and steering capability
US8570829B2 (en) 2009-12-22 2013-10-29 Pgs Geophysical As Depth steerable seismic source array

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2440418A (en) * 2006-07-21 2008-01-30 Pgs Geophysical As Seismic source having depth-control and steering capability
US7457193B2 (en) 2006-07-21 2008-11-25 Pgs Geophysical As Seismic source and source array having depth-control and steering capability
GB2440418B (en) * 2006-07-21 2011-04-13 Pgs Geophysical As Seismic source and source array having depth-control and steering capacity
US8570829B2 (en) 2009-12-22 2013-10-29 Pgs Geophysical As Depth steerable seismic source array
US9395461B2 (en) 2009-12-22 2016-07-19 Pgs Geophysical As Depth steerable seismic source array

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees