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潜山油藏一般具有地质结构复杂多变、储集层横向非均质性严重等特点 ,在计算地质储量时很难求准、求精储集层厚度。作者针对埕北古 10 0潜山古生代地层垂向保留少、横向变化大、井间又难于对比的情况 ,通过综合分析建立地质模型 ,制作高精度的合成地震记录 ,准确标定潜山储集层 ,利用地震资料横向密集和连续的优势 ,应用测井约束波阻抗反演技术 ,比较好地求取了储量计算范围内的潜山储集层厚度 ,为储量计算打下了基础。
Buried hill reservoirs generally have the characteristics of complex and changeable geological structure and serious horizontal heterogeneity of reservoirs, so it is very difficult to obtain the accurate reservoir thickness when calculating geological reserves. According to the fact that the Paleozoic strata in the Qiangbei Beigu ancient area have little vertical and horizontal variations and are difficult to be compared with each other, the authors build a geological model through comprehensive analysis to produce high-precision synthetic seismograms and accurately identify the buried hill reservoir By using the advantage of horizontal and intensive seismic data and continuous logging, the logging constrained wave impedance inversion technique is applied to calculate the thickness of buried hill reservoirs within the range of reserves calculation, which lays a good foundation for the calculation of reserves.