谭庄—沈丘凹陷古地温研究  

Study of Paleotemperature in Tanzhuang-Shenqiu Sag

作　　者：王锦喜[1] 付建元[1] 

机构地区：[1]中国地质大学石油系

出　　处：《断块油气田》2005年第6期11-14,共4页Fault-Block Oil & Gas Field

摘　　要：古地温是影响沉积盆地形成与演化的重要因素,研究古地温、古热流变化的方法很多,主要有“将今论古”法和地质温度计法。根据实测地温资料测试结果对本区今地温场的特征进行了分析,利用镜质体反射率和TTI法研究了本区的古地温及古地温梯度并分析地热演化及影响古地温的可能因素,所获得的认识对谭庄—沈丘凹陷的油气地质研究和勘探评价很有意义。Paleotemperature is an important factor which affects sedimentary basins information and evolvement.there are many kinds of methods to study it such as 'present being a key to past' method and geological thermometer method.In this paper,Paleotemperature and paleotemqerature gradient of researched area are researched by the vitrinite reflectance(R_(O)) and temperature time index(TTI) methods based on the present-day geotemperature data of DST,then the evolution thermal history and likely factors of paleotemperature are analyzed.The conclusions obtained from the research would be advantageous to the evaluation of the petroleum exploration and to the study of oil and gas geology in the area of Tanzhuang-Shenqiu sag.

关 键 词：古地温 古梯度TTI法 镜质体反射率 谭庄-沈丘凹陷 

分 类 号：P618.130.2[天文地球—矿床学] P618.13[天文地球—地质学]