珠江口盆地(东部)深层储层评价关键技术及其应用——以陆丰13-1油田古近系恩平组储层为例

Key techniques to evaluate deep reservoir and their application in the eastern Pearl River Mouth basin: a case of Paleogene Enping reservoir in LF13-1 oilfield

以陆丰13-1油田恩平组储层为例,基于HHT高分辨率处理技术,在高分辨率等时地层格架内构建了深层储层沉积模式,结合地震反演、井控地层切片和地震属性分析等技术,开展了沉积微相空间展布预测和演化规律等地震沉积学研究,较好地解决了深层储层沉积环境复杂、砂体小层对比困难所造成的储层横向展布预测难题。基于以上研究成果,2013年在陆丰13-1油田深层实施了两口调整井,取得了较好的效果。

Taking Enping Formation reservoir in LF13 1 oilfield as an example,a sedimentary model was constructed for the deep reservoir within an isochronous stratigraphic framework with high resolution on a basis of HHT seismic processing technique with high resolution,and the seismic sedimentology was researched,including the prediction of sedimentary microfacies distribution and their evolution pattern,by combing with several techniques such as seismic inversion,well-control stratigraphic slice and seismic attribute analysis,from which the hard problem to predict the lateral distribution of deep reservoir,due to the complex sedimentary environments and the difficulty of sand subzone correlation,was well solved.Based on these results,two adjustment wells were drilled for the deep reservoir in LF13-1 oilfield in 2013,producing quite good effects.