| Along with the deepening exploration in Tahe0ilfield, and the peripheralexpansion of oil and gas exploration area, to carry out the different periods ofancient tectonic features research. On this basis, it is very necessary to summary ofthe tectonic evolution mode, and Ordovician hydrocarbon reservoirs in Tahe Oilfieldis a large-scale of Karst fracture oil and gas reservoirs, its accumulation modelconsists of "Ordovician karst fracture cave structure composite reservoir model" and"Triassic structural-lithologic composite reservoir model", which is Typical at homeand abroad. Therefore, it is equally important to systematically summa up the oiland gas migration and accumulation model, in the space and time. Overall, thesuccessful exploration of Tahe Oilfield sets off a craze of the three-dimensional andmultilayer system oil and gas exploration in Tarim Basin. Not only for Tahe toanalysis and understanding of the complex scientific problems, but also for otherareas to understand the oil and gas accumulation condition, the generalized andvivid visual expression of its accumulation model has important enlighteningsignificance.The written of paper combines with the seismic data of the study area, welldata and previous research results, analysis of the structural characteristics, andthrough the structural characteristics analysis, the erosion of the amount of recovery,the tectonic evolution of the model analysis, into the accumulation mode finishesthis study. After the tectonic evolution and reservoir forming process Summarized isfinishing, By two-dimensional, three-dimensional dynamic geological model, in timeand space, its tectonic evolution model, the formation mechanism of karst fissurecave system, and the accumulation process will be expressed in the image. And theprominent characteristics of Tahe Oilfield will be seeked, what’s more, the formationmechanism of Ordovician karst fissure cave system, and the corresponding reservoircharacteristics in Tahe Oilfield will be highlighted. |
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