Theory and Application of Seismic Reservoir — A Case Study of Carbonate Reservoir in the Central Tarim Basin

Seismic reservoir, a new interdisciplinary subject of seismology and geology, emerges with the rapid development of seismic exploration technology and reservoir geology, with the help of high-precision 3-D seismic acquisition technique, to solve the quantitative 3-D space characterization and modeling of reservoir, push the development of reservoir geology forward, meet the need of detailed exploration and development of heterogeneous reservoirs, like low permeable clastics, ancient carbonate and igneous rock. This paper further defines the concept of seismic reservoir and describes its research thoughts, core content and technology system through the comprehensive analysis to the basic theory and character of seismic reservoir, combining with the latest trends of reservoir geology and geophysical exploration technologies. We believe that seismic reservoir is a interdisciplinary subject, directed by the theory of reservoir geology and geophysics, based on geophysical experiment of rock and reservoir, making use of 3-D seismic data, combining with various data of geology, logging, drilling, testing, extracting and lab analysis, for the study of reservoir features, like lithology, physical property and fluid, as well as its 3-D structural character and evolution law, to realize reservoir modeling finally. Seismic reservoir has its specific character, systematic, integrated, detailed and practical, states its key direction, carbonate, clastic and igneous reservoir, illustrates its four basic procedures—four steps, basic geological research to reservoir, geophysical simulation and method testing, extraction and interpretation of reservoir geophysical attributes and comprehensive evaluation and modeling to reservoir, making clear the core research contents of every stage, key technology, and development directions, and sums up its six key technologies, logging analysis, geophysical simulation experiment, reservoir seismic prediction, fluid prediction, reservoir modeling and 3-D visualization. we achieved the quantitative 3-D space characterization and modeling to carbonate fracture-caved reservoir and improved the success rate of oil-gas exploration and development after putting oil seismic reservoir in practical use to the carbonates in the Tarim Basin.

AAPG Search and Discovery Article #90142 © 2012 AAPG Annual Convention and Exhibition, April 22-25, 2012, Long Beach, California