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Keywords: magnetometer
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Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2019
Paper Number: OTC-29262-MS
... The objective of this paper is to investigate and discuss the increased capability of technology in detecting archaeological sites in a submerged environment. The paper will discuss the dynamic methods using dynamic sonars and magnetometers and how these data are analyzed and interpreted...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2019
Paper Number: OTC-29274-MS
... survey. Four Python scripts were developed, including an Input tool, Generate Survey Boundary tool, Visualization tool, and Confidence Modeling tool. Collectively these scripts comprise the Magnetometer Survey V.1.0 toolbox, which integrates into ArcGIS via ArcToolbox. Once marine magnetic survey data...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2019
Paper Number: OTC-29333-MS
...-deepwater, marine archaeologists in the energy sector have greatly benefited from technological improvements originally aimed at the exploitation of offshore oil and gas. Beginning with echosounders, side-scan sonars, and magnetometers in towed arrays, before moving into high-resolution side-scan sonars...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 2017
Paper Number: OTC-27724-MS
... cultural resource archaeologist seafloor magnetic data magnetic anomaly magnetic field altitude geomagnetic storm reservoir characterization interference offshore technology conference marine magnetometer survey gradiometer magnetometer data magnetometer survey interpretation...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2015
Paper Number: OTC-25933-MS
... phase, an AUV, operated at 70m above the seafloor, helped to establish high-resolution (1 m) bathymetric maps on targets identified during Phase 1. Near seafloor, magnetic anomalies were recorded using a deep magnetometer on the AUV. Analysis of AUV acoustic signals in the water column allowed to find...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2009
Paper Number: OTC-19957-MS
... and subseabed soil properties and structure, and detect all objects that may prove hazardous to pipeline installation and operation. Survey data are collected by a variety of sensors: multibeam and sidescan sonars, magnetometers and subbottom profilers. In environments where UXO may be present, these sensors...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 7–10, 1990
Paper Number: OTC-6416-MS
... ABSTRACT Locating buried small diameter sealines (say < 10") with conventional geophysical methods has always been a problem for the off-shore oil industry. Standard towed survey tools, based on reflection seismics or proton magnetometers, suffer from their lack of resolution...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 1985
Paper Number: OTC-4989-MS
... operation drilling fluids and materials overviewof magnetometer cruise drill pipe selection scientific ocean drilling otc 4989 ship upstream oil & gas core analysis ocean drilling program drilling fluid management & disposal tamu joide resolution microscope drilling equipment...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 1983
Paper Number: OTC-4479-MS
... INTRODUCTION A high sensitivity rubidium 87 magnetometer, designed and built by the author, is used at sea to make magnetic profiles over subsurface structures of interest. The Texas A&M University Research Vessel GYRE was used to launch, tow and recover a nonmagnetic fiberglass skiff...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 1980
Paper Number: OTC-3875-MS
..., a digital bathymetric profiler, an electromagnetic sound source with sub-bottom penetration up to 75 meters (240 feet), a high resolution piezo-electric sub-bottom profiler for acquisition of detailed shallow depth structural information, and a magnetometer for defining ferromagnetic anomalies. Hard...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 1977
Paper Number: OTC-3031-MS
... the line of cable, and placing their ground moorings no closer than 800 m to the cable track. sea bed cable ship repair-a review repeater grapnel terminal station splice cable track walter foster final splice interruption cable magnetometer fathom ship conductor requirement...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–7, 1974
Paper Number: OTC-2016-MS
... of the crater which had been set to mark the location. A Varian Nuclear Resonance Magnetometer was towed about 500 ft astern across the crater along azimuths about 450 apart. Three anomalies were discovered. One was near the center of the crater with a positive anomaly of slightly more than 100 gammas, and one...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 28–May 1, 1973
Paper Number: OTC-1727-MS
.... The advantages and disadvantages of magnetic compasses are well known. A magnetic compass has been made in which a three-axis magnetometer is permanently fixed to the craft and the stabilization is achieved by roll and pitch accelerometers. Analog computers are employed to seek magnetic North by performing...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 28–May 1, 1973
Paper Number: OTC-1853-MS
... in such an offshore cover survey of a 16-in. submarine pipeline located off the Galveston coast. It begins with a detailed description of the equipment used, such as the differential proton precession magnetometer, recording fathometer, low frequency acoustic subbottom profiler and the ultra-sensitive dual channel...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 17–20, 1969
Paper Number: OTC-1118-MS
... gravity, towed magnetometer, single-ship re- fraction and seismic profiler will give the desired information most rapidly and economically. Cost fac- tors for this type of survey will be I 3'76 RVAUTA'T'TON O"F IVI ,I-{ 'I@ RECONNAISSANCE TECHNIOUES OTC 1118 compared with costs involved in more...

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