Seismic Accurate Structure Interpretation And Reservoir Research On The Tan-Lu Strike-slip Fault

The Tan-Lu fault is one important strike-slip fault structure in eastern China, which extends in NNE-SSW direction on a plane. The length of the Tan-Lu fault is about 3000 kilometers, and about 400 kilometers in bohai offshore. The Tan-Lu fault divide eastern Liaodong bay offshore into Liaozhong depression, Liaodong depression and Liaodong uplift. It is advantageous to large scale hydrocarbon accumulation.The geometry and kinematics characteristics are studied by researching Tan-Lu fault in middle segment of eastern Liaodong bay offshore. The paper summarizes fracture interpretation model and control on hydrocarbon accumulation of trap. Therefore, the research has great significance to hydrocarbon prospecting of Liaodong bay offshore.Signal to noise ratio(SNR) are obvious improvement by using three-dimentional of pieces-link pre-stack time migration data. The imaging quality is better effect of complex fault-block. Especially in complex mud diapir strike-slip belt, the relationship of strike-slip fault and derivation fault are obvious. It provide solid foundation for structure interpretation and reservoir prediction.From regional study, strike-slip fault interpretation model are established by researching whole fracture model. Because of the central uplift belt, dip angle of the formation is high .So, in this interpretation I was combined with the coherence cube technique of C3 , and got an obvious effect.In this paper, combined with regional sedimentary features, we successfully predicted the reservoir distribution by using seismic attributes analysis,multiple-attributes hierachical analysis,seismic inversion and so on. Furthermore, we had the first attempt using the reservoir parameters inversion technology which based on the pre-stack Radon transform attributes and got a good result.Based on the reservoir research, we also successfully predicted the fluid and designed three wells with tens meters oil layer while increasing petroleum geological reserves 6699.2×104m3.Now,in JX1-1 structure, we fount all levels petroleum geological reserves 1.44×108m3,and determined billion tons of the reserve scale.