松辽盆地滨北地区扶余油层主河道预测及其油气意义

摘要

For the limitation of seismic data and the difficulty in the identification of main channel in binbei area,the patterns and methods of two-dimensional seismic data in identifing the main channel is established. And supplemented by the electrical characteristics of drilling rock to validatejionting channel tracking technology of the three -dimensional spectral decomposition.The prediction of Fuyu reservoir main channel is done. The binbei area has the characteristics of good inheriting, multi-material sources and multi-branch.the channal is mainly relying on northern material sources,and also developed western and northeastern material source, Showing mesh characteristics of aggregation and re-radiation. Fuyu reservoir's channel sand reservoir is mainly affected by the control of lithology variation belt,flanking occlusion of river bank, Fault truncated block and the vertical block of initial Pan-mudstone and other factors, mainly developed three types of oil and gas reservoirs.%针对滨北地区地震资料有限、主河道识别难度大的特点,建立了二维地震资料主河道识别的模式和方法,并辅以钻井岩电特征进行验证,联合三维频谱分解河道追踪的技术,完成了扶余油层主河道预测工作.滨北地区主河道特征具有继承性好、多物源、多分支的特征,河道以北部物源为主,兼发育西部和东北部物源,呈现汇聚和再放射网状特征.扶余油层河道砂油藏的形成主要受岩性变化带、河岸侧翼遮挡、断层截断遮挡和初泛泥岩垂向封堵等因素控制,主要发育3类油气藏.