关键词: 周青庄油田, 储层特征, 小波变换技术, 储层预测技术, 沉积相反演

Abstract: Zhouqingzhuang Oilfield was characterized by numerous local faults and complicated structure.The spatial distribution of hydrocarbon accumulation was predominated by the structure and lateral variations of reservoir formations.A new set of high-precision reservoir prediction techniques was applied in the oil and gas pay zones of this oilfield.The prediction techniques include the recognition technique of fault system based on integration of time-stratigraphic correlation and 3D seismic coherence cube processed by wavelet transformation,the sedimentary facies recognition technique by integration of well log and seismic attributes,and the high vitality 3D reservoir attributes outlining based on high precision reservoir prediction controlled by sedimentary lithofacies.The structural features and 3D distributions of sand bed attributes of the Paleogene S43 reservoir in Zhouqingzhuang Oilfield were delineated with above techniques.A new well planning project was made.As a result,many new wells acquried high-yielded oil flow.Furthermore,pay zone extension was confirmed,and the oil reserves in place increased by 1.89 million tons.

Key words: Zhouqingzhuang Oilfield, reservoir property, wavelet transformation technique, reservoir prediction technique, sedimentary facies inversion