CAJ | 학술논문

第三次资源评价（三次资评）结果表明准噶尔盆地侏罗系石油资源量占盆地总资源量的30％以上，天然气资源量占盆地总资源量的28％，其中30.7％的原油资源和45.7％的天然气资源分布在准噶尔盆地的南缘，可见应深入分析南缘侏罗系主力烃源岩的特征及其生烃潜力。通过对三次资评之后勘探所积累的地质地球化学数据的系统分析，认为准噶尔盆地南缘有机质类型总体以Ⅱ2型和Ⅲ型为主，纵向上发育了一套优质烃源岩（八道湾组）和两套中等丰度的烃源岩（三工河组和西山窑组），烃源岩的规模远远大于三次资源评价的结果。这3套烃源岩均达到了成熟-过成熟的演化阶段，在白垩纪末期进入生油高峰期，在新近纪末期进入生气高峰期，生油气关键时刻与圈闭的形成和定型匹配良好，有利于形成大型和超大型油气藏。研究成果对指导准噶尔盆地南缘油气勘探具有重要的理论和实际意义。
제삼차자원평개（삼차자평）결과표명준갈이분지주라계석유자원량점분지총자원량적30％이상，천연기자원량점분지총자원량적28％，기중30.7％적원유자원화45.7％적천연기자원분포재준갈이분지적남연，가견응심입분석남연주라계주력경원암적특정급기생경잠력。통과대삼차자평지후감탐소적루적지질지구화학수거적계통분석，인위준갈이분지남연유궤질류형총체이Ⅱ2형화Ⅲ형위주，종향상발육료일투우질경원암（팔도만조）화량투중등봉도적경원암（삼공하조화서산요조），경원암적규모원원대우삼차자원평개적결과。저3투경원암균체도료성숙-과성숙적연화계단，재백성기말기진입생유고봉기，재신근기말기진입생기고봉기，생유기관건시각여권폐적형성화정형필배량호，유리우형성대형화초대형유기장。연구성과대지도준갈이분지남연유기감탐구유중요적이론화실제의의。
The hydrocarbon resources from Jurassic source rocks account for more than 30%and the natural gas resources account for 28%of the total amount in the Junggar Basin according to the third resource evaluation in 2000.According to the evaluation result,about 30.7%of the oil and 45.7%of the natural gas of the Jurassic resource are from the southern margin of the Junggar Basin (SMJB).Thus,it is critical to keep on studying the characteristics and the hydrocarbon generating potentials of the Jurassic source rocks.Data compiled during the hydrocarbon exploration in the last ten years are helpful for a better characterization of the source rocks in the SMJB.Three sets of source rocks were recognized.The Badaowan Formation of the Lower Jurassic was high quality source rocks.Source rocks from the Sangonghe Formation in the Lower Jurassic and the Xishanyao For-mation in the Middle Jurassic are characterized by medium quality.The above three sets of source rocks are characterized by humic organic types which fall within type Ⅱ2 and type Ⅲ source rocks.All the source rocks are mature-overmature source rocks.The source rocks were buried to the peak of oil generation at the end of Cretaceous.Neocene is the period when the source rocks were buried to the peak of gas generation.The per-fect match between the key period of hydrocarbon generation and the initiation and formation of the trap facilitate large-scale hydrocarbon migration and accumulation.The research is significant in guiding the hydrocarbon ex-ploration in SMJB.