测线倾角曲率在构造精细刻画中的应用

Application of IL Dip curvature in fine structural characterization

为进一步提升对海上含油气盆地构造特征的描述能力,首次开展了基于测线倾角曲率技术在琼东南、莺歌海及珠江口(珠三坳陷)三个海上含油气盆地的针对性应用。实践表明:与相干体、蚂蚁体等常规技术相比,测线倾角曲率具有独特优势:(1)可以显著突出局部起伏,能够以二维平面实现对水道、冲沟的类三维成像;(2)与RGB属性融合技术结合,能进一步丰富图像信息;(3)无视采集脚印影响,明显突出小微断裂形态等。

To enhance the tectonic characterization of hydrocarbon-bearing basins in offshore areas,a novel technique based on IL Dip curvature analysis was applied to three offshore hydrocarbon-bearing basins-Qiongdongnan,Yinggehai and Pearl River Mouth Basin(Zhusan Depression).Compared with traditional methods such as coherent and ant tracking,this technique exhibited unique advantages.(1)It can effectively highlight local fluctuations and enable quasi-dimensional imaging of watercourses and gullies in a two-dimensional plane.(2)When combined with RGB attribute fusion techniques,it provides improved image information.(3)It is insensitive to the influence of acquisition footprints while significantly highlighting small microfracture patterns.