论文部分内容阅读
叙述了用于储层描述的反射地震新方法和在大庆探区的应用情况。对于大庆探区单层砂岩仅为几米的陆相薄互层储层的描述，传统的反射地震方法已很难实现。为此，我们围绕地震资料采集、处理和解释三个环节开展了研究工作，形成了一套以高分辨率地震技术为核心的储层描述反射地震技术方法。在采集上，采用高采样率、高低截滤波、高检波器自然频率、小组合基距、全部检波器深埋接收等方法；在处理上，采用分时静校正、分频叠加等方法；在解释上，采用一维波动方程反演波阻抗、地震道非线性混沌反演等方法。经大庆探区大面积推广使用，证实了地震勘探的分辨率和准确度有大幅度提高，地震剖面主频比用常规地震勘探技术提高100％，在1800m深度上达80Hz，取得了较好的地质效果。
Describes a new method of reflection seismic for reservoir description and its application in Daqing exploration area. For the description of the continental thin interbedded reservoirs, which is only a few meters in the single layer sandstone of Daqing exploration area, the traditional reflection seismic method has been very difficult to realize. To this end, we have carried out research work on the three aspects of seismic data collection, processing and interpretation, and have formed a set of reservoir seismic reflection seismic techniques with high resolution seismic technology as the core. In the acquisition, using high sampling rate, high and low cut filter, the natural frequency of the high detector, the small group base distance, all geophones buried receiver method; in the processing, the use of time-sharing static correction, Interpretation, using one-dimensional wave equation inversion impedance, seismic trace nonlinear chaos inversion method. Extensive use of the Daqing exploration area has confirmed that the resolution and accuracy of seismic exploration have greatly improved. The seismic frequency has been improved by 100% compared with conventional seismic exploration techniques and reaches a maximum of 80 Hz at a depth of 1800 meters. Geological effects.