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A油田延9储层是一套三角洲平原沉积,储层主要为细砂岩。本次以岩心分析资料,试油试采数据为基础、综合地质、录井、地球物理测井等资料对该地区有效厚度进行研究,来确定适应本区油层特点的岩性、物性、含油性和电性的下限标准:孔隙度为15%,渗透率为4.0×10-3μm2;电性下限电阻率为19Ω.m;声波时差为252μs/m。有效厚度的起算取0.4 m,致密夹层的起扣厚度取0.2 m。通过对储层参数定量解释模型的优化,提高了储层参数计算精度,避免了有效厚度的漏失。
A Oilfield Yan 9 reservoir is a delta plain deposition, the reservoir is mainly fine sandstone. Based on the core analysis data and test-oil production data, the effective thickness of the area is studied based on the data of geology, logging and geophysical logging to determine the lithology, physical properties and oil-bearing properties that are suitable for the reservoir characteristics in this area And the electrical lower limit of the standard: porosity of 15%, the permeability of 4.0 × 10-3μm2; lower electrical resistivity of 19Ω.m; sonic time difference of 252μs / m. 0.4m for effective thickness and 0.2m for tight sandwich. Through the optimization of the quantitative interpretation model of reservoir parameters, the calculation accuracy of reservoir parameters is improved and the loss of effective thickness is avoided.