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黄骅拗陷枣北地区沙三段广泛发育有火成岩,并在其中发现了高产油流。该区火成岩厚度落、期次多、横向变化大。针对这一特点,野外采用60次覆盖、12.5m的小点距、18个检波器面积组合、lms采样进行资料采集。室内增加了地表一致性反褶积、DMO、反Q滤波等处理技术,改善了地震记录的信噪比,提高了分辨率。在解释上还采用了多井网层位标定和VSP层位标定,地震沿层信息提取,神经网络技术等,查清了火成岩的平面和空间分布,并对储油性能作了预测,经钻探证实,该预测是成功的。
The igneous rocks are extensively developed in the third member of Shahejie Formation in the Zaobei area of the Huanghua depression, and high-yield oil flow has been found therein. The igneous rocks in this area fall in thickness and have more horizontal and horizontal changes. In response to this feature, the field with 60 coverage, 12.5m small spot, 18 detector area combinations, lms sampling data acquisition. Indoor added surface deconvolution, DMO, anti-Q filtering and other processing techniques to improve the seismic recording of the signal to noise ratio and improve the resolution. In the interpretation, multi-well network calibration and VSP horizon calibration, seismic layer information extraction and neural network technology are also used to find the plane and spatial distribution of igneous rocks. The oil storage performance is predicted. After drilling Confirmed that the forecast is successful.