Seismic Attributes – a promising aid for geologic （地震属性u2014u2014一个承诺对地质的援助）.pdfVIP

Seismic Attributes – a promising aid for geologic prediction Satinder Chopra+ and Kurt Marfurt* †Arcis Corporation, Calgary, Alberta, Canada *Allied Geophysical Laboratories, University of Houston, Houston, Texas, USA Seismic attributes have come a long way since their intro d u c- expectation is enunciated in that seismic attributes will tion in the early 1970s and have become an integral part of continue to improve accuracy of interpretations and predic- seismic interpretation projects. To d a y, they are being used tions in hydrocarbon exploration and development. widely for lithological and petrophysical prediction of re s e r- voirs and various methodologies have been developed for The 1990s saw 3D attribute extractions become commonplace their application to broader hydrocarbon exploration and in the interpretation work place. During this time seismic development decision making. Beginning with the digital interpreters were making use of dip and azimuth maps, re c o rding of seismic data in the early 1960s and the ensuing amplitude extractions and seismic sequence attribute brigh t spot analysis, the 1970s saw the introduction of mapping concepts were also established. Seismic coherence complex trace attributes and seismic inversion along with was introduced, which distinctly revealed buried deltas, river their color displays. This was followed by the development of channels, reefs and dewatering features. The remarkable response attributes, introduction of texture analysis, 2D attrib- detail with which stratigraphic features show up on coher- utes,