摘要
以准噶尔盆地哈拉阿拉特山中东部地区阿拉德油田浅层稠油为研究对象,根据原油物性、地球化学特征及稠油降解作用,对原油碳同位素和生物标志化合物指标进行油源对比;根据包裹体均一温度,分析阿拉德油田油气成藏期次,建立成藏模式。结果表明:阿拉德油田主力层系中侏罗统西山窑组的原油为中等—严重生物降解原油,主要来源于玛湖地区下二叠统风城组烃源岩;三叠系、白垩系层系原油主要来源于哈山地区准原地下二叠统风城组烃源岩;浅层油藏存在白垩纪末期一期充注,具有"深部双向供烃、断层毯砂输导、地层圈闭聚集"的成藏特点。该结果可为研究区下一步油气勘探提供依据。
Taking the shallow heavy oil of Alade Oilfield in the middle east of Hala'alate Mountains in Junggar Basin as the research object,according to the physical and geochemical characteristics of the crude oil and the influence of heavy oil degradation,the oil and source correlation of carbon isotope and biomarker indexes of the crude oil were carried out;according to the homogenization temperature of the inclusion,the oil and gas accumulation periods were analyzed,and the accumulation model was established.The results show that the crude oil of Xishanyao Formation of Middle Jurassic in Alade Oilfield is medium to severe biodegradation,which mainly comes from the Lower Permian Fengcheng Formation source rock in Mahu Area;the crude oil of Triassic,Cretaceous and other strata mainly comes from the Lower Permian Fengcheng Formation source rock in quasi situ in Hashan Area;the shallow reservoir has one-stage filling at the end of Cretaceous,with"homology-bidirectional feature supply hydrocarbon,transported by fault and sand,accumulate in stratigraphic trap".The research results provide a basis for further oil and gas exploration.
作者
郭瑞超
王千军
王建伟
曾治平
秦峰
王超
高剑雄
GUO Ruichao;WANG Qianjun;WANG Jianwei;ZENG Zhiping;QIN Feng;WANG Chao;GAO Jianxiong(Research Institute of Exploration and Development,Shengli Oilfield Company,SINOPEC,Dongying,Shandong 257015,China)
出处
《东北石油大学学报》
CAS
北大核心
2021年第3期54-61,I0004,I0005,共10页
Journal of Northeast Petroleum University
基金
中国石油化工股份有限公司重大科技专项(P19016-1)
中国石油化工股份有限公司重大科技专项(P20049-4)。
关键词
地球化学特征
油源对比
成藏期次
成藏模式
阿拉德油田
准噶尔盆地西北缘
geochemical characteristics
oil-source correlation
stages of reservoir formation
accumulation model
Alade Oilfield
northwestern of Junggar Basin
