趋势面分析在瓦窑堡油田油藏分布规律研究中的应用

为了确定油藏分布规律，运用趋势面分析法对瓦窑堡油田长6油层组的顶面构造及层位厚度进行趋势值和剩余值分析，结合已有地质资料综合分析油井分布、产量、构造位置与剩余值之间的关系。通过数学建模分析已有数据，加深对油藏分布规律的研究。结果表明，已有的油井在构造剩余趋势和厚度剩余趋势图上均有明显的组合特征，构造正剩余区且厚度负剩余区内的油井大多产能较高，构造成为控制油井产能的主要因素。显著性检验证明该数学模型符合实际地质情况，对研究区油藏分布规律具有指导意义。

Application of trend surface analysis in the study of reservoir distribution regularity in Wayaobu oilfield

To determine the distribution regularity of reservoir, trend surface analysis was used to analyze the top surface structure and horizontal thickness of the Chang 6 oil-bearing strata in Wayaobu oilfield. Combined with the existing geological data, the relationship between well distribution, production, structure location and residual value was comprehensively analyzed. Mathematical modeling analysis of existing data helps deepen the study of reservoir distribution regularity. The results show that the existing oil wells have obvious combination characteristics in the structure residual trend and thickness residual trend charts. The oil wells in the structure positive residual areas and thickness negative residual areas have high productivity, and the structure is the main factor controlling the oil well productivity. The significance test proves that the mathematical model accords with the actual geological condition and has guiding significance to the reservoir distribution regularity in the study area.