郑家潜山油气藏特征与成藏主控因素分析  

Characterization of Zhengjia buried hill reservoir and the key factors controlling trap formation

作　　者：胡尊伟[1] 李晓晨[1] 惠长松[1] HU Zun-wei;LI Xiao-chen;HUI Chang-song(Geophysical Research Institute of Shengli Oilfield Branch Co.,Dongying Shandong 257022,China)

机构地区：[1]胜利油田分公司物探研究院,山东东营257022

出　　处：《油气地球物理》2020年第2期77-82,共6页Petroleum Geophysics

摘　　要：郑家潜山主要发育古生界和太古界地层油气藏,勘探面积大,上报探明面积小,探明区外多口井见油气显示。在分析研究区地层与构造背景基础上,从圈闭类型、储盖组合、油水组成、油气平面及剖面分布规律五个方面描述了郑家潜山油气藏特征,解剖了典型油藏剖面,明确圈闭成藏主控因素,进行了储层预测、盖层分析、断裂体系精细刻画。结果表明,优质储层主要发育在潜山顶面及其周缘,有利盖层分布在潜山北部,南部砂砾岩体发育导致盖层渗透性提高。通过断层及构造精细解释,描述了三组NW向展布的圈闭群,提出下一步有利勘探方向和目标。The strata reservoirs of the Paleozoic and Archean are mainly developed in buried hill in Zhengjia area.The exploration area is large and the reported proven area is small.The show of oil and gas are obtained on some wells outside the proven area.Based on the analysis of the strata and tectonic setting,the characteristics of the buried hill reservoirs in Zhengjia area are described from the type of trap,reservoir-cap combination,composition of oil-water,distribution of oil and gas in vertical and horizontal,and the typical reservoir profiles are analyzed.The main control factors on trap and reservoir forming are confirmed,and the reservoir prediction,cap rock analysis and fracture system are described finely.The effect shows the high-quality reservoir are mainly developed in the top of the buried hill and its periphery,the favorable caprock is distributed in the north of the buried hill,the development of the glutenite in the south result in the improvement of the permeability of the caprock.Three groups of trap in NW are described through the fine interpretation of the fault and structure,the further favorable exploration direction and goals are proposed.

关 键 词：油气藏特征 成藏主控因素 圈闭类型 郑家潜山 

分 类 号：P61[天文地球—矿床学]