CGG has launched Multipulse™
CGG has launched Multipulse™, a new near-surface and deep-penetrating electromagnetic (EM) survey technique which is claimed to increase resolution and bandwidth. Improvements to near-surface resolution and depth of exploration are continuous goals for those engaged in geological mapping and mineral exploration. Previously, they oil and gas companies were forced to choose a system which had been optimally tuned to achieve one of these goals while sacrificing some capability in the other, says CGG. This new technology offers both a high-power pulse (half-sine wave) for depth of exploration, and a lower-power pulse (square wave) for near-surface resolution; both within one cycle, providing the value of two exploration techniques in one pass.
The geoscience company also reports that it recently completed a second BroadSeis™ multi-client survey offshore Norway, covering a 2,300 sq km area in the Barents Sea. Fast-track processing deliverables will be available by the end of 2013 and final processing products by August 2014. This second BroadSeis 3D survey is located in the south-eastern part of the Barents Sea, adjacent to the recent eastward extension of Norwegian territory as a result of the border agreement between Norway and Russia. New data is required to assess the petroleum potential in this region.
CGG’s first BroadSeis multi-client survey offshore Norway targeted the Halten Terrace.
Earlier this year, the company completed its first BroadSeis-BroadSource™ survey in Australia. The ‘Sandman’ deepwater broadband survey on the Northwest Australian Shelf was awarded to CGG by Shell Development Australia. BroadSource reinforces the benefits of BroadSeis, CGG’sbroadband marine solution, to offer the widest available bandwidth and is ideal for the Northwest shelf of Australia where the broad bandwidth will provide high-resolution imaging, enabling accurate interpretation of subtle hydrocarbon traps, and clear identification of drilling hazards such as shallow gas. The low frequencies provide better penetration for the imaging of deeper objectives, as well as more reliable reservoir properties for more accurate drilling, claims CGG. The survey data set is currently being processed in CGG’s Singapore subsurface imaging centre and is expected to be completed in 2Q2014.
News Item details
Keywords: Seismic - Geology / seismic / satellites
Subjects: Geophysics, Exploration and production
