海拉尔盆地贝尔凹陷南部层间构造及岩性圈闭的三维地震解释

3D seismic interpretation of inter-layer structure and lithologic trap in the southern Buir Sag,Hailar Basin

应用Landmark工作站SeisWorks地震解释和Geoprobe三维可视化模块，以构造、岩性圈闭识别和储层预测等技术为手段，对海拉尔盆地敖瑙海地区主要勘探目的层系内部的层间构造和岩性圈闭进行了精细解释。由已知井出发，确定层间构造的油层顶面位置并进行层位追踪。利用相干数据体以及相干体水平切片、相干体沿层切片技术对三维资料进行断层解释，最终编制出油层顶面构造图完成层间构造解释。利用Geoprobe三维可视化全方位浏览数据体、体透视、种子点追踪、层拉平及反拉平技术完成岩性圈闭解释。通过对层间构造和岩性圈闭进行精细刻画，为探井部署提供了可靠依据。经钻探，多口探井见到较好的油气显示并获工业油流，为贝中次凹提交6738×10^4t石油预测储量奠定了坚实基础。

Using SeisWorks seismic interpretation of Landmark workstation and the Geoprobe three dimensional visualization module, with methods of recognition of structures, lithologic trap and reservoir forecast, the paper carried on fine explanation to the inter-layer structures in the main exploration series of strata in Aonaohai area of the Buir Sag. Embarking on the known wells, the oil layer top position was decided and traced. Using the coherent body data as well as the coherent body horizontal slice, the coherent body level slice technique was carried on the fault interpretation of the three dimensional material, and to explain top plane of oil layer and to compile a top structural map of the reservoirs. Using the Geoprobe three dimensional visualiza- tion omni-directional browsing data body, the body perspective, a seed tracing, the level flare out and instead flare out the technology,the lithologic trap explanation was completed. The fine portrayal of the inter-layer structure and lithologic trap provided a reliable basis for deployment of drilling wells. The recent exploration has made a good progress in the southern Buir Sag, which has laid a solid foundation to submit petroleum reserves of 6 738 × 10^4 tons.