塔里木盆地北部YM32下古生界潜山油气藏油气运移  

Characteristics of Hydrocarbon Migration of YM32 Lower Paleozoic Buried Hill Reservoirs in North Tarim Basin

作　　者：管文胜 韩剑发[2] 刘永福[2] 查明[1] 杨淑雯 吴梅莲[2] 苏洲[2] 刘博[2] Guan Wensheng;Han Jianfa;Liu Yongfu;Zha Ming;Yang Shuwen;Wu Meilian;Su Zhou;Liu Bo(School of Geosciences,China University of Petroleum,Qingdao 266580,China;Research Institute of Exploration and Development,Tarim Oilfield Company,PetroChina,Korla 841000,China)

机构地区：[1]中国石油大学地球科学与技术学院,山东青岛266580 [2]中国石油塔里木油田公司勘探开发研究院,新疆库尔勒841000

出　　处：《地球科学》2020年第4期1315-1326,共12页Earth Science

基　　金：国家重大专项(Nos.2017ZX05001-001,2016ZX05001)。

摘　　要：YM32下古生界潜山油气藏是受断裂控制的低幅度油气藏,油气运聚复杂.结合新钻井的地球化学分析数据,对研究区油气藏油气运移规律进行剖析.依据YM32下古生界潜山气田藏的原油及抽体物样品中的饱和烃的烷烃、甾藿烷,芳烃的萘与菲、烷基二苯并噻吩、三芳甾烷等生物标志化合物进行系统分析,优选油气示踪参数,并归一化,结合族组分分析结果,形成了油气运移示踪二步法.综合研究发现,YM32下古生界潜山油气藏有YM342-YM343和YM322两个油气充注点,以及YM342?YM343→YM34?1H→YM32、YM342?YM343→YM34?7H→YM33、YM342?YM343→YM37?YM35,以及YM322→YM321→YM32共4条油气运移路径,并在YM342?YM343→YM37?YM35油气运移路径上,发现2个资源量超过1.00×10~6t的潜力圈闭.单参数与油气运移示踪二步法都可以反映油气运移路径,而后者具有全面、直观、准确地表征油气运移路径的特点.The YM32 Lower Paleozoic buried hill reservoir is a low?amplitude reservoir controlled by faults,which is characterized by complex migration and accumulation of oil and gas.Firstly,combined with the geochemical analysis of new drilling data,the oil and gas migration law of oil and gas reservoirs in the study area is analyzed.Then,based on the biomarker compounds,alkanes and steroid terpane from saturated hydrocarbon,naphthalene and phenanthrene,DBTs and TAS from aromatic hydrocarbons in the samples of crude oil and extracts from the YM32 Paleozoic buried hill reservoir,the tracer parameters of oil and gas are optimized.Finally,a step?by?step method of hydrocarbon migration tracer is formed by normalization,in combination with the results of group composition analysis.Results show that there are two filling points of YM342?YM343 and YM322 in the YM32 Lower Paleozoic buried hill reservoir,as well as four migration paths of YM342?YM343 to YM34?1H to YM32,YM342?YM343 to YM34?7H to YM33,YM342?YM343 to YM37?YM35,and YM322 to YM321 to YM32.On the migration path of YM342?YM343 to YM37?YM35,two potential traps with more resources than 1.00×10~6 t were found.Both the single parameter and the two?step method of hydrocarbon migration tracer can reflect the migration path of oil and gas,and the latter has the characteristics of comprehensive,intuitive and accurate characterization of the migration path of oil and gas.

关 键 词：潜山油气藏 油气运移 烃类化合物 归一化 饱芳比 二步法 油气 

分 类 号：P618.13[天文地球—矿床学]