摘要
流体势是控制地层烃类运移和聚集的重要因素。综合利用三维地层压力和Hubbert流体势模型建立了三维地层流体势的计算方法,即利用测井约束地震反演求取三维地震层速度体,结合已钻井的测井资料,以单点算法假设和克里金插值算法为基础求取三维地层压力,然后根据三维地层流体势和三维地层压力的对应关系计算得出三维地层流体势。以胜利油区博兴洼陷高89井区为例,对其三维油势进行计算,进而分析油势的分布特征及其在预测油气优势运移方向和有利聚集区带中的应用。研究结果表明,与常规的流体势等值线图相比,该方法计算的三维地层流体势在横向和纵向上的精度较高、连续性较好,便于得到各深度及各层位切片上的流体势分布特征,预测的油气低势区与实际生产情况较为吻合。
This paper presents a three-dimension(3D) fluid potential method based on Hubbert fluid potential model and 3D pore pres-sure. First, combing 3D interval velocity data which is inverted through log-constrained seismic inversion and well logging data, it canobtain the 3D pore pressure based on spatial interpolation method and the single point hypothesis. Then, we calculate the 3D fluid po-tential using the mutual correspondence between the fluid potential and pore pressure. Finally, we calculate 3D fluid potential of Box-ing sag as an example to illustrate the process of this method and analyze its characteristic and predict the favorable exploration area.Comparedwithfluid potential contour map, thismethod has high accuracy,goodcontinuity.
出处
《油气地质与采收率》
CAS
CSCD
北大核心
2014年第3期41-44,113,共4页
Petroleum Geology and Recovery Efficiency
基金
国家科技重大专项"窄密度窗口安全钻井技术与配套装备"(2011ZX05021-003)
国家自然科学基金项目"高压气井内高速流体诱发生产管柱振动特性研究"(51274219)
关键词
三维地层流体势
三维地层压力
油气运聚
单点算法假设
克里金插值
博兴洼陷
3D fluid potential
3D pore pressure
oil and gas migration and accumulation
single point hypothesis
Kriging interpola-tion
Boxing sag
