| The demand of Changde "dessert" seismic identification technology research on seismic geological mainly has two aspects: one is to improve the resolution by amplitude and improve the vertical resolution of seismic,greatly improve the accuracy of seismic sedimentology channel sand body identification;the two is to predict the reservoir in the existing basis,establish a variety of reservoir inversion method to improve the accuracy of dessert,"the identification,improve the prediction accuracy and sand rate of drilling horizontal well depth.40% of the remaining oil resources in the north of Songliao basin is located in the Fuyang oil layer,which has a capacity of more than 100 million tons of proven resources,and has a good prospect for exploration,which is the main field of exploration in Daqing oil field at present.However,in proven reserves,nearly 8.5 tons of reserves difficult to use.Drilling confirmed: river sand benefit reserves are mainly distributed in the river delta sedimentary system in the distribution of seismic technology to identify the main channel sand body is accurate,effective exploration and great demand of the development of low permeability periphery.This research purpose is: according to the technical requirements of three in Sanzhao "dessert" identification of various seismic geological difficulties and horizontal well drilling,mining key seismic data to carry out a number of potential,amplitude preserving high resolution processing of new technology research,improve the imaging effect and the thin reservoir identification ability;analysis of tight sandstone reservoir lithology reservoir(the "dessert" microfacies types,thickness),physical property and oil bearing characteristics,to predict the channel sand body is the core problem,describe the research of "dessert" identification and quantitative,comprehensive support well deployment design and drilling tracking,recent work to protect the three reserves of Sanzhao area. |
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