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对于岩性、物性差异较大的砂砾岩储层,有效厚度解释划分的判别模式不能套用岩性物性相近较为简单的砂泥岩储层标准。为此,针对海拉尔盆地呼和诺仁油田南屯组砂砾岩储层的地质特点,综合分析了影响本区砂砾岩储层含油性的各种因素,优化合理的测井响应曲线,研制出集深侧向、岩性密度、声波时差和微球形聚焦等多参数于一体的油层有效厚度电性划分标准图版,该图版突破了以往单一的油层界限解释模式,图版精度明显提高;同时,将储层分为相对较好和相对较差的两类有效层,这一评价方法为油藏描述及产能评价奠定了基础。
For the sandstone reservoir with large difference in lithology and physical properties, the discriminant model of effective thickness interpretation and division can not apply the relatively simple lithologic and mudstone reservoir standards with similar lithology and physical properties. Therefore, aiming at the geological characteristics of sandstone reservoir of Nantun Formation in Huhhot Noren Oilfield, Hailaer Basin, various factors influencing the oil content of sandstone reservoir in this area are comprehensively analyzed, and the reasonable logging response curve is optimized. Deep lateral, lithological density, acoustic jet lag and multi-parameter microspherical focusing on the integration of the effective thickness of the oil layer of the standard map, the plate broke through the previous interpretation of a limited interpretation of the reservoir pattern, plate precision was significantly improved; the same time, storage The strata are divided into two kinds of effective strata, which are relatively good and relatively poor, which lays the foundation for reservoir description and productivity evaluation.