GB1411645A - Method and apparatus for offshore geophysical exploration - Google Patents

Method and apparatus for offshore geophysical exploration

Info

Publication number
GB1411645A
GB1411645A GB5545573A GB5545573A GB1411645A GB 1411645 A GB1411645 A GB 1411645A GB 5545573 A GB5545573 A GB 5545573A GB 5545573 A GB5545573 A GB 5545573A GB 1411645 A GB1411645 A GB 1411645A
Authority
GB
United Kingdom
Prior art keywords
vessel
detector
streamer
seismic
towing
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
GB5545573A
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.)
Texaco Development Corp
Original Assignee
Texaco Development 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 Texaco Development Corp filed Critical Texaco Development Corp
Priority to GB5545573A priority Critical patent/GB1411645A/en
Publication of GB1411645A publication Critical patent/GB1411645A/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
    • G01V1/3808—Seismic data acquisition, e.g. survey design

Abstract

1411645 Marine seismic exploration TEXACO DEVELOPMENT CORP 29 Nov 1973 55455/73 Heading H4D A marine survey is made by towing a seismic detector streamer such that the detectors pass in succession through a predetermined surface point, actuating a seismic source at a single fixed location each time a detector passes through the point, deriving from each detector a respective signal representing the seismic energy arriving at the point, and stacking the signals. In the embodiment described, for refraction surveying, the source comprises four air guns carried by an anchored vessel and fired together. The streamer has, e.g. 24 detectors (each including a geophone array) and is towed by a second vessel. One of the vessels carries a radio navigation system to identify its position; the relative position of the other vessel being identified by computing the water-break arrival times at selected locations along the streamer or by a second radio system. A command signal for remotely actuating the source is generated on board the towing vessel at intervals equal to the time taken for the streamer to advance by one detector length. A signal notifying the actuation instant is sent from the first to the second (towing) vessel. Detector signals associated with common surfaces points are stacked.
GB5545573A 1973-11-29 1973-11-29 Method and apparatus for offshore geophysical exploration Expired GB1411645A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5545573A GB1411645A (en) 1973-11-29 1973-11-29 Method and apparatus for offshore geophysical exploration

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5545573A GB1411645A (en) 1973-11-29 1973-11-29 Method and apparatus for offshore geophysical exploration

Publications (1)

Publication Number Publication Date
GB1411645A true GB1411645A (en) 1975-10-29

Family

ID=10473963

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5545573A Expired GB1411645A (en) 1973-11-29 1973-11-29 Method and apparatus for offshore geophysical exploration

Country Status (1)

Country Link
GB (1) GB1411645A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2506952A1 (en) * 1981-05-26 1982-12-03 Norway Geophysical Co SYSTEM FOR CLASSIFYING SEISMIC DATA IN MARINE PROSPECTIONS
US7539081B2 (en) 2004-10-22 2009-05-26 Chiharu Aoyama Seabed resource exploration system and seabed resource exploration method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2506952A1 (en) * 1981-05-26 1982-12-03 Norway Geophysical Co SYSTEM FOR CLASSIFYING SEISMIC DATA IN MARINE PROSPECTIONS
US7539081B2 (en) 2004-10-22 2009-05-26 Chiharu Aoyama Seabed resource exploration system and seabed resource exploration method

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee