渤中油区地下流体动力学特征  

THE CHARACTERISTICS OF UNDERGROUND FLUID DYNAMICS IN THE BOZHONG OIL AREA

作　　者：陈荣书[1] 何千里[1] 何生[1] 何炳骏 韩庆炳 

机构地区：[1]中国地质大学 [2]渤海石油公司

出　　处：《石油学报》1993年第3期20-29,共10页Acta Petrolei Sinica

摘　　要：通过分析地下流体运动的能量变化,指出控制烃类运移和聚集的根本因素是地下流体力场,即流体势的分布特征。应用自已研制的CPPS系统软件,综合其它地质资料,分析了渤中油区主要产层的流体势分布特征,并进一步探讨了该区油气二次运移的方向和可能的聚集场所,认为:(1)从能量的观点出发,采用势分析方法是研究地下烃类运移和聚集的正确途径;(2)用地震层速度求取地下流体动力学研究所必需的地层压力资料;(3)根据势分析确定渤中油区油气二次运移的方向以从凹陷向凸起为主,最有利的油气聚集区是石臼坨凸起、石臼坨与沙垒田凸起的接合部到渤中凸陷的斜坡带;其次是渤南凸起及其东北部的断裂发育区,渤中凹陷到石臼坨及渤东低凸起的斜坡带。该区实际含油气前景可能比目前业已了解到的更为可观。This paper analyzes the energy change of underground fluid flow and points out the pri- mary factor which controls the hydrocarbon migration and accumulation is the field of force acting on underground fluid, that is, the distribution characteristics of the fluid potential. By applying the CPPS system software, this paper takes into consideration other geological information and analyzes the characteristics of fluid potential of the main productive intervals of Bozhong field, discusses the direction of the secondary migration of oil and gas and possi- ble accumulation. The following conclusions are reached: (1)From the point of view of en- ergy, the potential analysis method is the correct process for a quantitative study of the pro- cess of the hydrocarbon migration and accumulation; (2)The data of formation pressure, which is necessary for the study of hydrodynamics can be predicted with seismic interval ve- locity; (3)Generally, the secondary migration of oil and gas is from depression to surround- ing arch. The best locations of accumulation are shijiutuo-shaleitian and Bozhong depres- sion, the second is Bonan and its northeastern fault zone, the slope between Bozhong depres- sion and Shijiutuo, the Bodong low arch. The prospect of oil-gas resources is more promising in Bozhong field than we know presently.

关 键 词：油气勘探 地下 流体动力学 

分 类 号：P618.13[天文地球—矿床学]