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Results: 139

First production application of high-density vibroseis acquisition on Alaska?s North SlopeFirst production application of high-density vibroseis acquisition on Alaska?s North Slope
Leading Edge, May, 2014
Olivier Winter | Peter Maxwell | Ron Schmid | Howard Watt | Eric Bathellier
Summary
A case study of the acquisition of a high-density, broadbandwidth vibroseis survey on Alaska?s North Slope, using a high-productivity slip-sweep technique, shows the merits of this technique for acquisition of high-density data in a short time frame in extreme conditions as well as the benefits of high-density broadband data for subsequent processing, imaging, and seismic inversion.
Shale Gas Reservoir Prediction Research in Daanzhai, the Eastern Sichuan BasinShale Gas Reservoir Prediction Research in Daanzhai, the Eastern Sichuan Basin
Leading Edge, May, 2014
Fangyan Huang | Xinwei He | Wanlong Zhang | Yuting He
Summary
The large-scale exploration and development of shale gas mainly benefit from improvement of horizontal well drilling technology and subsequent hydraulic fracturing technology in recent years. However, the development practices of multiple shale gas blocks indicate that exquisite reservoir description of shale gas and sweet spot prediction is critical to develop shale gas with benefit. It can optimize the development of shale gas drilling and reservoir fracture reconstruction and guide exploration and development engineering. Hence, this article drawing from overseas successful experiences in shale gas exploration and development, research the geological characteristics and rock physical properties, and explore appropriate well logging interpretation, evaluation and reservoir prediction technologies for shale gas in the eastern of Sichuan Basin, China.
Shale Science AllianceShale Science Alliance
Oilfield Technology, May, 2014
Neil Peake
Summary
Neil Peake, CGG, and Bill Whatley, Baker Hughes, explain how combining the reservoir description services of Baker Hughes and the geoscience capabilities of CGG offers improved understanding of how to optimize reservoir development.
Seabed permanent reservoir monitoring (PRM) - a valid 4D seismic technology for fields in the North SeaSeabed permanent reservoir monitoring (PRM) - a valid 4D seismic technology for fields in the North Sea
First Break, May, 2014
malcom lansley
Summary
Morten Eriksrud demonstrates the advantages of PRM using 4D technology, such as a significant uplift in image quality, and how this is leading to a broadening market for this technology in the North Sea.
Improvement of the reservoir characterization of fluvial sandstones with geostatistical inversion in Golfo San Jorge Basin, ArgentinaImprovement of the reservoir characterization of fluvial sandstones with geostatistical inversion in Golfo San Jorge Basin, Argentina
Leading Edge, May, 2014
Alberto Sabate | Inna Tsybulkina | Francisco Morillo
Summary
In the Golfo San Jorge Basin, Argentina, the main traditional reservoirs are fluvial sandstones, which are thin and usually fall below seismic tuning frequency. The need for an aggressive development of the reserves and the need to open new areas led to a pilot job in a zone of approximately 100 km2, assuming the possibility to go vertically across structural and stratigraphic traps and their combination, using high technology added to the proved workflow. After the carefully traditional seismic structural interpretation of faults and horizons in the area and using seismic attributes, the seismic reservoir characterization was aimed toward the processing and analysis of a seismic geostatistical inversion.
Broadband Seismic Technology and Beyond Part IX: BroadSeis in ProductionBroadband Seismic Technology and Beyond Part IX: BroadSeis in Production
Geo Expro, May, 2014
Vetle Vinje | Jo Firth
Summary
In the last edition of GEO ExPro we described how the broad bandwidths delivered by the innovative BroadSeis technology benefit exploration. In this second part, the advantages of an extended bandwidth to field development and reservoir characterisation are examined. The high frequencies provide highresolution near-surface images for geohazard identification and also enable detailed velocity modelling which can provide better deeper images. However, in many respects it is the low frequency end of the spectrum which is more important as these frequencies provide more quantitative and reliable reservoir inversion results, simplified interpretation and clearer facies discrimination.
Exploring the Mid North Sea HighExploring the Mid North Sea High
Geo Expro, May, 2014
Gregor Duval | Matthew Dack
Summary
The Mid North Sea High is one of the last remaining underexplored areas of the UKCS. Away from the main Kimmeridge Clay source rock kitchen it is believed that a Carboniferous petroleum system could be in place but it has not yet been made evident by successful drilling. Supporting the exploration efforts in this region, CGG has acquired a new broadband marine seismic survey over the southern parts of Quadrants 29 and 30, where until now only 2D seismic data have been accessible. This 3D dataset is therefore the first of its kind in this area. It covers approximately 5,600 km2 around and south of the Auk field and it has already revealed some interesting geological features which help to better understand the geology of the Mid North Sea High.
4D seismic inversions4D seismic inversions
Seismic Profile, April, 2014
Lucia Levato
Summary
The following three cases of offshore 4D seismic inversions illustrate how CGG?s modular approach to reservoir characterization is adapted to the degree of complexity of the objectives and provides valuable support to reservoir engineers for tracking production-related changes in the reservoir in order to economically optimize oil recovery. Although the economic objectives are often the same, production schemes and reservoir characteristics are different from case to case.
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