论文部分内容阅读
高精度三维地震相对与常规三维地震具有更高的信噪比和分辨率,能够更准确的识别低序级断层。本文以垦71高精度三维地震资料为例,通过对其品质的分析评价,认为该资料的数字检波器具有失真小、噪声低、灵敏度高、频带宽、保幅特性好等主要特征,采集观测系统还具有方位角宽、主要目的层炮检距分布均匀的特点,此外,高精度三维地震资料展现的地质现象丰富、可靠,构造归位准确,主要目的层段优势频带分辨率高。本文重点讲述了该资料在垦西地区的勘探开发中的应用以及取得的效果,指出通过对高精度三维地震资料的品质分析,能够很好地解决多层系、薄储层的复杂断块油田在勘探开发中遇到的构造及储层问题。
High-precision 3D seismic has higher signal-to-noise ratio and resolution than conventional 3D seismic and can identify low-grade faults more accurately. This paper takes Ken 71 high-precision 3D seismic data as an example, and through the analysis and evaluation of its quality, the digital geophone has the characteristics of low distortion, low noise, high sensitivity, wide frequency band and good amplitude-preserving property. Acquisition observation The system also has a wide range of azimuth angles and a uniform distribution of the offset of the main target layer. In addition, the geological phenomenon exhibited by the high-precision 3D seismic data is rich and reliable, and the structure is accurately located. The resolution of the dominant band of the main target layer is high. This paper focuses on the application of the data in the exploration and development of Kenxi area and the results obtained. It is pointed out that the quality analysis of high-precision 3D seismic data can be used to solve complex fault-broken oilfields with multi-layered and thin reservoirs Structural and reservoir problems encountered in exploration and development.