吐哈盆地储备圈闭分布规律研究
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摘要
通过对吐哈盆地1998年以来储备圈闭的地质层位、类型、面积、资源量、分布区域等方面进行统计分析,发现其储备圈闭具有三个特点:①储备圈闭分布区域广泛,以台北凹陷、台南凹陷居多,目的层系主要是下侏罗统,近年已出现逐步向上第三系、白垩系和深层转移的趋势;②圈闭埋深以小于4000m的中、浅层圈闭为主,面积多小于l0km2,资源量多小于500×104t,并且逐年减小;③圈闭类型众多,已经从构造圈闭为主的态势转变为增加复杂隐蔽的岩性、地层圈闭的格局,并且地震勘探等技术的发展与进步对圈闭资源量稳定在较高水平起着越来越重要的作用。
Through statistics and analysis of the geologic horizon, type, area, resource extent and distributiion region of the reserve traps since1998, it is found that three characteristics of the reserve trap are: ① they are widely spread, most of them are in Taibei and Tainan sag; targeted formations are mainly Lower-Jurassic, but in recent years gradually shifted to Upper-Tertiary, Cretaceous and deeper layers; ② most of them has burial depth less than 4 000m, area less than 10 km\+2, and reserve extent less than 500×10\+4t, which gradually decreases year by year; ③ there are many types of traps, which has changed from predominated structural traps to complex and subtle lithologic and stratigraphic traps. Meanwhile, the advance in seismic exploration is playing a more and more important part in stabilizing the resource extent at a fairly high level.
Through statistics and analysis of the geologic horizon, type, area, resource extent and distributiion region of the reserve traps since1998, it is found that three characteristics of the reserve trap are: ① they are widely spread, most of them are in Taibei and Tainan sag; targeted formations are mainly Lower-Jurassic, but in recent years gradually shifted to Upper-Tertiary, Cretaceous and deeper layers; ② most of them has burial depth less than 4 000m, area less than 10 km\+2, and reserve extent less than 500×10\+4t, which gradually decreases year by year; ③ there are many types of traps, which has changed from predominated structural traps to complex and subtle lithologic and stratigraphic traps. Meanwhile, the advance in seismic exploration is playing a more and more important part in stabilizing the resource extent at a fairly high level.
引文
[1]郭秋麟,米石云.油气勘探目标评价与决策分析[M].北京:石油工业出版社,2004.
[2]袁明生,梁世君,等.吐哈盆地油气地质与勘探实践[M].北京:石油工业出版社,2002.
[3]刘和甫.沉积盆地构造样式[M].武汉:中国地质大学出版社,1994.
[4]吴涛.吐鲁番-哈密盆地构造特征与油气聚集[J].石油学报,1996,17(3).
[5]王劲松,等.吐哈盆地台北凹陷隐蔽油气藏勘探[J].新疆石油地质,2002,23(1):18-20.
[6]张建宁,等.济阳坳陷储备圈闭特点分析[J].油气地质与采收率,2005,12(1):21-23.
[2]袁明生,梁世君,等.吐哈盆地油气地质与勘探实践[M].北京:石油工业出版社,2002.
[3]刘和甫.沉积盆地构造样式[M].武汉:中国地质大学出版社,1994.
[4]吴涛.吐鲁番-哈密盆地构造特征与油气聚集[J].石油学报,1996,17(3).
[5]王劲松,等.吐哈盆地台北凹陷隐蔽油气藏勘探[J].新疆石油地质,2002,23(1):18-20.
[6]张建宁,等.济阳坳陷储备圈闭特点分析[J].油气地质与采收率,2005,12(1):21-23.
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