NO20044631L - Geophysical method and apparatus - Google Patents

Geophysical method and apparatus

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Publication number
NO20044631L
NO20044631L NO20044631A NO20044631A NO20044631L NO 20044631 L NO20044631 L NO 20044631L NO 20044631 A NO20044631 A NO 20044631A NO 20044631 A NO20044631 A NO 20044631A NO 20044631 L NO20044631 L NO 20044631L
Authority
NO
Norway
Prior art keywords
seabed
receivers
memory
transport container
water
Prior art date
Application number
NO20044631A
Other languages
Norwegian (no)
Inventor
Eivind Berg
Atle Fyhn
Gerard J Beaudoin
Scott T Michell
Nigel P Purnell
Graham Openshaw
Original Assignee
Bp Corp North America 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
Priority claimed from PCT/US2003/009314 external-priority patent/WO2003083514A1/en
Application filed by Bp Corp North America Inc filed Critical Bp Corp North America Inc
Publication of NO20044631L publication Critical patent/NO20044631L/en

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  • Geophysics And Detection Of Objects (AREA)

Abstract

Det bekjentgjøres en fremgangsmåte og et apparat for å utføre en seismisk undersøkelse under flaten til en vannmasse og på sjøbunnen. I en utførelsesform lastes flere seismiske datamottakere som er fjernbare inn i en transportbeholder (15) lokalisert over vannflaten (11) og transportbeholderen (15) senkes ned i vannet og plasseres ved en dybde relativt nær sjøbunnen(17). Hver av mottakerne har et minne for å registrere vibrasjonen i sjøbunnen og har en bryter for å aktivere minnet. En ROV (20) benyttes for å losse mottakerne fra transportbeholder (15) og for å plassere hver mottaker (R) på sjøbunnen (17) og langs målelinjen. I en utførelsesform omfatter mottakerne en ramme, en trykktank for å huse minnet og de fjernaktiverte kontrollene, og en geofon som er plantet separat i sjøbunnen ved en relativ kort distanse fra rammen.A method and apparatus for performing a seismic survey below the surface of a body of water and on the seabed are disclosed. In one embodiment, several removable seismic data receivers are loaded into a transport container (15) located above the water surface (11) and the transport container (15) is lowered into the water and placed at a depth relatively close to the seabed (17). Each of the receivers has a memory for detecting the vibration in the seabed and has a switch for activating the memory. An ROV (20) is used to unload the receivers from the transport container (15) and to place each receiver (R) on the seabed (17) and along the measuring line. In one embodiment, the receivers comprise a frame, a pressure tank for housing the memory and the remotely activated controls, and a geophone planted separately in the seabed at a relatively short distance from the frame.

NO20044631A 2002-03-27 2004-10-27 Geophysical method and apparatus NO20044631L (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US36781702P 2002-03-27 2002-03-27
PCT/US2003/009314 WO2003083514A1 (en) 2002-03-27 2003-03-27 Geophysical method and apparatus

Publications (1)

Publication Number Publication Date
NO20044631L true NO20044631L (en) 2004-10-27

Family

ID=35057732

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20044631A NO20044631L (en) 2002-03-27 2004-10-27 Geophysical method and apparatus

Country Status (1)

Country Link
NO (1) NO20044631L (en)

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