Hydrodynamic Simulation of Turbidity and Its Application for Reservoir Prediction
The recent hydrocarbon exploration in deep water indicates that the reservoir prediction has greatly restricted the exploration of lithologic reservoirs in lowstand fans. Because of the lack of wells,general constrained inversion by logs could not work. On the basis of studies on geological background where turbidities develop,this paper applies the theory of hydrodynamics to simulate the geometric shape of turbi-dites composed of different size particles. Compared with seismic reflectance signatures,the main granularity of lowstand fans can be estimated,which has been observed on seismic data. This method has been successfully applied to reservoir prediction in Yinggehai and Qiongdongnan Basins. Furthermore,the results of simulation show that:①the degree of slope where the turbidity is easy to develop is 1. 5~3. 0°;②the deposits of turbidities usually form slope fans and basin floor fans, and the single turbidite has the thickest segment in slope foot and is thinning down toward basin; ③if all other parameters have no changes, bigger sediment grain forms thicker and smaller turbidte and vice versa.
国家科技期刊平台
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万方数据
维普
