| After years of tackling the key problems in the seismic exploration, the data quality of seismic is improved greatly and modern karst theory under the guidance of karst the technology explanation is continually consummated .With the process of exploration in the tarim basin the carbonate rocks in Lungu buried hill Ordovician has achieved very significant effect. Although karst theory and exploration technology has made remarkable progress, the studies of the buried hill hole in the seam of the direction and explanations, predictions and stripes gathering of the study is rather difficult because of the heterosphere of the carbolic rocks.Although karst of drill rates reaching to 100%, the gas and oil output steady rate is still not high.Firstly, combined with modern karst theory, the seismic reflection characteristics of different reservoir types are finely calibrated, Secondly, calculating seismic impedance inversion, frequency, coherence, reflecting strength .etc by making fully use rich seismic information in 3D seismic data,Optimize advantageous properties of fracture. Based three-dimensional visualization carving technology, with the longitudinal section, plane banding ,various karst section of the crack , cave in 3-D space such as surface karst zone, vertical percolation zone and runoff erosion sculpture. Finally, with the geological, logging and oil testing data, comprehensive analysis of the bore, hole, joint and combined features of karst system, the type of carbonate karst reservoir, spatial distribution , and storage space ,ultimately divide the fractured systems of carbonate karst reservoir in the target area and make comprehensive evaluation of fractured reservoirs, to find the most favorable fractured reservoirs and provide drill targets.In the whole , the studies of carbonate rocks in LunGu7 forms a technology series for carbonate reservoir identification and prediction and provide a set of ideas and methods for the carbonate rocks in the Tarim Basin.
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