| 1.Significance and status quo of researchTahe oil field, the key oil and gas exploration and development area of North West Branch, Sinopec Corporation, is located in the mid-south part of Arkekula salience of Shaya uplift in the northern Tarim basin. By the end of Dec.2003, the total reserves submitted for three classes is 0.85bin tons of oil equivalent, which controls 1093km2 of area.The statistical results by world oil exploration shows that the proved reserves in carbonate accounts for half of the total proved reserves, so carbonate is the important exploration research object. Although geophysical reservoir bed prediction technology has obtained much progress in the past 20 years, geophysics for development and production was being face with the challenges of interpretation to various chaos reflection data and integrate analysis under the irregular conditions. We have not the effective method, technique or algorithm, especially aiming at carbonate reservoir. The book on carbonate seismography written by I.Palag andK.J.Marfurt(1997) only introduces few examples about carbonate diagenesis characterized with seismic methods. It is of opinion that seismic methods can deal with reservoirs at the depth of about 1000m with acceptable effect and is very difficult when reservoir depth larger than 4000m due to resolution limitation. Besides the mothods used for clastic reservoir research, methods of shear wave and multi-component are considered with more importance. The main reservoir beds of Tahe oil field are of carbonate fracture-vuged type reservoir bed, which is controlled by multi-process of sedimentation, diagenesis, lithology, tectonic movement, palaeotopography, palaeoclimate, palaeohydrology and palaeokarst. The types of reservoir beds are of fractured type, fracture pore-vuged type, fracture karst-vuged type, matrix pored type. Due to the characteristics of strong heterogeneity and deep buried depth vertically and laterally of Tahe oil field reservoir, we have not established mature and effective reservoir prediction technical method series.The buried depth of carbonate reservoir is deeper than 5000m in Tahe oil field, which is taken for difficulty at world level. So with the selection of this topic as doctor degree dissertation, we establish a set of methods aiming at carbonate reservoir prediction in Tahe oil field, description and integrate evaluation on oil-gas-bearing, which not only can it quicken the exploration course, evaluate reservoir-forming features integrated, deepen the understanding of the reservoir body distribution and rule of reservoir formation, improve the success rate of drilling and increase reserve and output, but also can contribute the solutions to the international engineering front problem. 2.research method and technical courseThe method of combination of theory and practice was being taken, but we take the practical effect as the importance. On the basis of integrated seismic interpretation,the joint 3D seismic data fined processing work should be worked out first. Considering the 3D data acquired by different acquisition equipment and different layout system in different stages, at first, we conducted joint data processing for normalization to improve original data quality.Aiming at geological task that is to carry out and evaluate structure and to put forward drilling exploration target, on the basis of integrate analysis of drilling, logging, core and seismic data, we conducted the work of reservoir prediction, reservoir description and oil gas prediction and also established the geological and geophysical model of reservoir by making use of advanced technical methods, including ultrasonic physical modeling, wave equation numerical simulation, coherence analysis, seismic attribute extraction, multi-parameter cross cluster analysis, impedance inversion and 3D visualization.3.Reseach content and innovation views(1) Research on seismic response forward modeling for carbonate fracture-vuged type reservoir bedsDuring a long period, fo...
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