THE APPLICATION OF CURVE RECONSTRUCTION TO PREDICTION OF LITHOLOGIC TRAPS IN ORDOS BASIN
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摘要: 在井约束的随机反演过程中,通常利用单一测井曲线来指示储层,这种方法使用的曲线类型单一,不能完整地反映储层特征。因此,提出利用多种测井曲线来重构一种更接近储层真实特性的曲线,相比较伽马、中子等曲线而言,重构后的曲线与波阻抗具有更好的相关性,反演出来的岩性剖面更加真实。针对D区实际资料,利用曲线重构反演技术进行目标区储层预测,取得了相对常规单一曲线岩性反演更好的效果,证明了该方法的有效性。Abstract: In the process of well constrained stochastic inversion,we usually use one single logging curve to reveal the reservoir. This method has difficulties to fully refelct the reservoir charateristics since it uses only one type of curve. In this regard, we proposed in this paper to use a variety of well logs to reconstruct one curve which is closer to the real characteristics of the reservoir. Compared to gamma and neutron gamma logs, the reconstructed curve has a better correlation with the impedance, and the inversed lithologic section is closer to the real. With the data from the area D, we used curve reconstuction inversion technique for reservoir prediction in this paper. Results are much more satisfactory comparing to the conventional lithology inversion, which only uses a single curve.
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Key words:
- curve reconstruction /
- reservoir prediction /
- well constrained /
- inversion
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