GB1411645A - Method and apparatus for offshore geophysical exploration - Google Patents
Method and apparatus for offshore geophysical explorationInfo
- 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
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
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
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.
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)
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 |
-
1973
- 1973-11-29 GB GB5545573A patent/GB1411645A/en not_active Expired
Cited By (2)
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 |