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宁东油田构造上处于鄂尔多斯盆地南部天环坳陷中段,油藏类型主要为岩性复合油藏,该区储层物性横向变化大,油藏分布不规律,勘探难度较大。通过基于双相介质理论的共振滤波油气检测技术,提取主力油层“低频共振、高频衰减”信息,进行油气检测,预测结果与大部分井的测试结果相符合,与已有钻井结果对比具有很高的符合率。这项检测技术基本适用于研究区的地质及地震资料条件,为宁东油田储层预测及含油性预测提供了一种有效的技术与手段。
Ningdong Oilfield is structurally located in the middle of the Tianhuan Depression in the southern Ordos Basin. The reservoir types are mainly lithologic composite reservoirs. The reservoir physical properties in this area vary greatly laterally and the reservoir is irregularly distributed, making exploration difficult. Through the technique of resonance filtering oil and gas detection based on two-phase medium theory, the information of “low frequency resonance, high frequency attenuation” is extracted and the oil and gas are detected. The predicted result is consistent with the test results of most wells and compared with the existing drilling results Has a high coincidence rate. This detection technology is basically applicable to the geology and seismic data of the study area and provides an effective technique and means for reservoir prediction and oil-bearing prediction in Ningdong oilfield.