大庆石油地质与开发2024，Vol.43Issue(4)：73-82,10.DOI:10.19597/J.ISSN.1000-3754.202403044
海拉尔盆地油气勘探新领域、新层系及资源潜力
New areas,new strata series and resource potential of oil and gas exploration in Hailar Basin
摘要
Abstract
Hailar Basin is an important area for sustainable and effective development of resources replacement of Daqing Oilfield for the 14th Five Year Plan(2016-2020).After years of exploration,reserves have been submitted in the main structures of oil-rich sags including Surenor structural zone and eastern slope of Urxun sag,central sub-sag,Sudelte structural zone,Huoduomo structural zone,Huhe Nuren structural zone and Bayantala structural zone in Beier sag.Faced with other more complex exploration targets,previous conventional exploration methods cannot meet the requirements of exploration discovery.In order to clarify remaining resources types,hydrocarbon accumu-lation characteristics and potential in Hailar Basin,distribution of main source rocks,characteristics of different types of reservoirs and characteristics of source-reservoir assemblages are summarized based on drilling cores and cuttings,logging and seismic data of the basin,pointing out potential resource types,controlling factors,distribu-tion patterns and reserves increasing potential.The results show that tight oil in deep sag area of oil-rich sag,Juras-sic Tamulangou Formation and bedrock buried hills still have much exploration potential,with total remaining re-source of 9.08×108 t.The submitted 1.5×108 t of reserves of conventional reservoirs in structural zones only account for 14.2%of total resources.Tight oil resources rely on the first member of Nantun Formation as the main source rocks,with superimposed and contiguous distribution of tight reservoirs above and below source rocks in deep sags and remaining resource potential of 3.84×108 t.Jurassic Tamulangou Formation has self-generated and self-pre-served oil,with near-source accumulation and remaining resource potential of 2.37×108 t.With faults connected to source rock,unconformity overlap of source rock,lateral source-reservoir connection and integrated interior and surface accumulation,buried hill reservoirs have remaining resource potential of 2.87×108 t.The research promotes efficient exploration of the whole oil and gas resources in Hailar Basin and similar rift basins,providing references for technical and exploration practices.关键词
海拉尔盆地/南屯组/塔木兰沟组/基岩潜山/主控因素/勘探意义Key words
Hailar Basin/Nantun Formation/Tamulangou Formation/bedrock buried hill/main controlling fac-tor/exploration significance分类
能源科技引用本文复制引用
吴海波,于东旭,王洪伟,齐玉林,邓海,陈方举,侯思宇,吴雪姣,毕殿辉,龚永杰..海拉尔盆地油气勘探新领域、新层系及资源潜力[J].大庆石油地质与开发,2024,43(4):73-82,10.基金项目
国家科技重大专项"中石油矿业权区及周边空白区油气资源评价"(QGYQZYPJ2022-1). （QGYQZYPJ2022-1）
