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The AAPG/Datapages Combined Publications Database

Showing 447 Results. Searched 200,756 documents.

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Basic Seismic Processing: Part 7. Geophysical Methods

Peter M. Duncan

AAPG Special Volumes

... of the source pulse as a running sum over the ideal reflection sequence. Second, the hydrophone or geophone receiver and the seismic recording device each have...

1992

Dome Structure, Atlantic Outer Continental Shelf East of Delaware: Preliminary Geophysical Report

Robert E. Sheridan

AAPG Bulletin

... of the 60-m (200 ft) live-section Teledyne hydrophone and the magnetometer fish. Because this water depth precluded getting near the coastal wells...

1975

Foundations of Quaternary Reefs in South-Central Belize Lagoon, Central America: GEOLOGIC NOTES

Dong Ryong Choi , Charles W. Holmes

AAPG Bulletin

... source was a Uniboom (FOOTNOTE 4) system capable of producing 300 joules. The signals were received by a 24-element hydrophone and the signal analog...

1982

Planning and Operating a Transition Zone 2D Seismic Survey on Lake Tanganyika, #41765 (2016).

Doug Roberts, Jeremy P. FitzPatrick

Search and Discovery.com

... unit. The OBX recorders were self-contained recording units containing a 3 component geophone and a hydrophone. The source vessel Haibao was also...

2016

3-D Surface-Wave Estimation and Separation Using an Iterative Closed-Loop Approach; #41898 (2016)

Tomohide Ishiyama, Gerrit Blacquiere

Search and Discovery.com

..., the approach solves the inverse problem. We applied this method to several data sets to demonstrate its virtues, such as real 3D geophone/hydrophone...

2016

Exploration of the North Seribu Area, Northwest Java Sea

Roberto Fainstein

Indonesian Petroleum Association

... data. The 1982 and 1985 data were acquired with a cable length of 2375 meters and with 96 hydrophone groups. Receiver group intervals were 25 meters...

1987

Toward in Situ Monitoring of Active Submarine Volcanoes: A Progress Report

F.K. Wyatt, J.A. Orcutt, G. Sasagawa, H. Staudigel, P. Zimmer

Circum Pacific Council Publications

...-OBS includes four sensor components: three seismometers, one hydrophone, two high gain tiltmeters and four inclinometers; their sensitivities...

1996

Structure of Colorado Basin and Continent-Ocean Crust Boundary off Bahia Blanca, Argentina: Rifted Margins

W. J. Ludwig , J. I. Ewing , C. C. Windisch , A. G. Lonardi , F. F. Rios

AAPG Special Volumes

... ft3 volume at 500 psi) developed by the Mobil Oil Company and a 400-ft-long hydrophone streamer designed at Lamont-Doherty. This combination of sound...

1979

Variations in Bottom Processes Along the U.S. Atlantic Continental Margin: Rifted Margins

Bonnie A. Mcgregor

AAPG Special Volumes

... as the sound source north of Cape Hatteras and a 640 10-6 m3 (40 cu in.) chamber south of Cape Hatteras. A 50-element hydrophone was used to receive...

1979

Monitoring Sea-floor Instability Caused by the Presence of Gas Hydrate Using Ocean Acoustical and Geophysical Techniques in the Northern Gulf of Mexico

Erika Geresi, Ross Chapman, Tom McGee, Bob Woolsey

AAPG Special Volumes

... a single hydrophone and preamplifier. One preamplifier was set to lower gain than the other 15 to insure a nonclipped recording of the direct...

2009

1.5 Crustal Sections: A Wide Angle Seismic Profile

V. J. Hughes, R. S. White, E. J. W. Jones, D. H. Matthews, J. A. Brewer, and D. K. Smythe

AAPG Special Volumes

... and hydrophone receivers from a single ship. The maximum offset is governed by the length of the streamer, but the ultimate aim is to produce a seismic cross...

1983

Evolution of Continental Slope Gullies on the Northern California Margin

Glenn A. Spinelli , Michael E. Field

Journal of Sedimentary Research (SEPM)

..., towed 25 to 100 m below the sea surface. The system comprises two receivers, an internal hydrophone, and an external 10-element, 5-m-long hydrophone...

2001

Diapirlike Structures in Southeastern Bering Sea

David W. Scholl , Michael S. Marlow

AAPG Bulletin

... linear hydrophone arrays trailing 200 m behind the ship and separated by about 10 m. Signal processing is by a marriage of linear and AGC low-input...

1970

Structure of Continental Margin Between Cape Rhir and Cape Sim, Morocco, Northwest Africa

James M. Robb

AAPG Bulletin

... hydrophone and an Alden wet paper recorder (11-in. sweep; 28 cm) were used for seismic reflection profiles. The air gun (5 cu in. chamber, 1,800 psi; 81.9...

1971

Morphology and Structure of Amazon Upper Continental Margin

John D. Milliman

AAPG Bulletin

... sparker with summed twin hydrophone arrays, the profiles being recorded on two stop-start x-y recorders. Normal ship speed was 8 knots, with navigation...

1979

Quaternary Development of Channels, Levees, and Lobes on Middle Laurentian Fan

William R. Normark , David J. W. Piper , Dorrik A. V. Stow

AAPG Bulletin

... rate and a 60-m (200-ft), two-channel hydrophone array. The primary analog signal was recorded on magnetic tape for later playback. Shipboard records...

1983

Seismic Activity in the Central Gulf Coast Basin

Eugene R. Brumbaugh

New Orleans Geological Society

... channels or more are being used to record data from a 4,000 meter (12,800 feet) cable towed at 23 feet with a hydrophone group interval of 25 meters...

1991

Imaging Deep into the Gulf of Mexico

Thomas Smith

GEO ExPro Magazine

... of the deep-water Lower Tertiary Wilcox trend. © TGS Data Acquisition Challenges Seismic acquisition using a towed hydrophone array and towed energy...

2007

Surficial Sediments and Sand and Gravel Deposits of Inner Massachusetts Bay

D. O. Cooks, D. L. Bell, C. F. Willett, R. L. Wilkins, J. Jackimovicz

Atlantic Geology

... in Figure 1. Sub-bottom profiling was accomplished utilizing a 300-joule EGSG Uniboom source, Aquadyne hydrophone streamer, and Raytheon shipboard...

1976

Surface Source Technology

Stan D. Brasel

Pacific Section of AAPG

... for shot to hydrophone distance, is 18 db stronger than the original marine Dinoseis units. Another feature of the new model is the 1 1/2 inch steel...

1972

Milestones in Angolas Oil History

Tako Koning

GEO ExPro Magazine

... of the CurveSM Tako Koning “TRUE” LIFE-OF-FIELD RELIABILITY   Passive optical sensors CLEARER IMAGE   Broadband 3-C accelerometer and hydrophone...

2012

OPSEIS™ Seismic Recording System

H. A. Tims, D. R. Cahill

Indonesian Petroleum Association

... processing to yield a hydrophone equivalent section. These data would normally be acquired using separate bay-cable and marsh recording crews. The use...

1983

Continuous Seismic Profiles of a Shelf-Edge Bathymetric Prominence in Northern Gulf of Mexico

R. K. Matthews

GCAGS Transactions

... energy is picked up by a single hydrophone, filtered, amplified, and recorded on sensitized paper passing through the recorder. Successive recordings...

1963

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