地震资料在储量计算中的应用

Using seismic data to calculate the geological reserves

对松辽盆地三肇凹陷制作了精细地质模型剖面 ,及相应制作了不同信噪比、不同主频的正演地震模拟剖面。通过对具有不同主频的地震模拟剖面的分析 ,指出了利用主频较低的地震剖面研究地质问题的局限性 ,提出了关于特征分辨率解决地质情况的能力问题。以最密测网、最密井网条件下的储量计算值为标准 ,对不同井控密度、不同地震测网密度情况 ,进行了误差比较。给出了权衡容积法和积分容积法计算储量的误差。

We make a subtly geological model profile in Sanzhao sag in Songliao basin, then we can make a series of models with varies S/N ratios and with varies dominant frequency accordingly. Having analysed varies dominant frequency seismic simulate profile, we give the limitation in researching the geological problem using lower dominant frequency, and present the concept of using feature resolution to resolve the geological problem. Finally, we assumed the result as the actual reserves value, which was calculated in this condition that the density of the seismic lines and wells become the extremum at the same time. Later, using this normal result we have made, we can give the errors from comparing the result with varies denseness to the normal. At the end, we give the errors of calculating the reserves using the weigh volumetric method and the integral volumetric method respectively.