National Seismic Survey 2D Reprocessed
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This resource is a Spatial Representation of the boundaries of 2D Reprocessed Seismic Surveys (applying updated processing techniques to existing 2D seismic surveys). Data is derived from the National Offshore Petroleum Information Management System (NOPIMS). https://nopims.dmp.wa.gov.au/Nopims/GISMap/Map While every effort is made to ensure that surveys are correctly located on the map, their location is only an aid to search and discovery of survey data. Proper submitted navigation/position data associated with the survey should be used to correctly locate a survey Disclaimer Surveys are spatially represented in NOPIMS by their post-plot navigation (i.e. actual survey data acquired and not the planned or pre-plot navigation). 3D surveys are spatially represented by their full fold data polygon (i.e. actual seismic data coverage), if this is not available the four sided binning polygon will be used instead. This means that the data coverage for a survey will most likely be less than its spatial representation. 2D surveys are spatially represented by "ends-and-bends" lines derived from the P1/90 processed navigation. For some older surveys, or where proper P1/90 navigation is not available, the survey lines are derived from digitized maps or other navigation data of unknown source, but verified against other available information.
Light Hydrocarbon Geochemistry of the WA-28-P Area, Dampier Sub-basin, Western Australia : Rig Seismic Survey 97 : Project 121.19
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As part of its geochemical research program, the Marine Geoscience and PetroleumGeology Group (Australian Bureau Of Mineral Resources) is evaluating the usefulness ofthe Direct Hydrocarbon Detection (DHD) method. The data for this DHD program wereacquired during a co-operative high resolution seismic reflection program with WoodsidePetroleum Pty Ltd in the Dampier Sub-Basin. The data acquisition phase took placebetween October 22-28, 1990, with a total of 531 km (25 lines) of DHD data beingcollected between the Angel gas field in the north-east and the Madeleine 1 well in thesouth-west of Woodside Petroleum exploration permit WA-28-P in the Dampier Sub-Basin, on the North-West shelf, Australia. No significant hydrocarbon anomalies were detected on any of the lines, in spite of the factthat many lines traversed known oil and gas accumulations, such as the Wanaea, Cossackand Angel accumulations. The lack of anomalies indicates that the major reservoirhorizons in this part of the Dampier Sub-Basin are well-sealed, and that little opportunityfor the vertical migration of hydrocarbons exists. While no significant anomalies were detected, very minor increases in total hydrocarbonwere, however, observed over some of the wells/fields. The largest increase in THC wasobserved over the Montague 1 well location, where the value increased from abackground level of 16ppm to a high of 22.8ppm. There was no increase in any of thelight hydrocarbon gases.