孔南地区孔二段致密油生烃评价及有利区预测  

Assessment on Hydrocarbon- generation Potential of Tight Oil and Prediction of Favorable Zones in Kong-2 Member of the Kongnan Area

作　　者：董清源[1,2] 刘小平[2,3] 张盼盼[2,3] 李洪香[4] 刘子藏[4] 

机构地区：[1]中国石化石油物探技术研究院,江苏南京211103 [2]中国石油大学,北京102249 [3]油气资源与探测国家重点实验室中国石油大学,北京102249 [4]中国石油大港油田分公司,天津300280

出　　处：《特种油气藏》2015年第4期51-55,153,共5页Special Oil & Gas Reservoirs

基　　金：国家自然科学基金"湖相未熟-低熟页岩油形成与聚集机理"(41372144)

摘　　要：孔南地区孔二段富有机质页岩是该区重要的烃源岩,勘探中发现了广泛的致密油显示。在结合大量样品分析和勘探实践的基础上,探讨了孔南地区孔二段致密油的生烃潜力及有利区分布。研究认为,研究区Ek22、Ek23优质源岩具有良好的致密油生烃基础,横向上广泛分布,纵向上叠置连片,受构造、沉积因素影响明显。基于实验、盆地模拟、地质及地震资料分析,综合考虑致密油形成的8类控制因素,建立了研究区致密油评价参数体系,预测了有利区的分布,对研究区下一步勘探部署具有重要意义。In the Kongnan Area,Kong- 2 shales with rich organic matters serve as favorable hydrocarbon source rocks,with extensive distribution of tight oil encountered during exploration. Based on analyses with a lot of samples and exploration practices,hydrocarbon- generation potential of tight oil and distribution of favorable areas in Kong- 2 Member of the Kongnan Area were studied. Research results show that high- quality source rocks in Ek22 and Ek32 of the study area have favorable conditions for hydrocarbon generation from tight oil. Being distributed in extensive manner horizontally and superimposed and connected vertically,these rocks are susceptible to impacts of structural and sedimentary factors. Through lab test,basin simulation and geologic and seismic analysis,and considering the 8 controlling factors for formation of tight oil,a parameter system for appraisal of tight oil within the study area was established to predict distribution of favorable zones. This study may play an important role in deployment of further exploration operations within the area.

关 键 词：致密油 生烃评价 有利生烃区 孔二段 孔南地区 黄骅坳陷 

分 类 号：TE122.1[石油与天然气工程—油气勘探]