海拉尔-塔木察格盆地构造带与油气关系
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摘要
海拉尔-塔木察格盆地在成盆期和改造期不同构造应力场作用下形成不同类型的构造带和配置关系.为研究不同类型构造带的特征及其与油气的关系,根据地震资料解释和典型剖面构造组合规律,以及构造发育的位置、时间、延伸方向、断裂与褶皱的关系、展布形态及成因,在盆地内共识别出3种与油气密切相关的构造带——变换构造带、断层相关褶皱构造带和滑脱构造带;分析3种类型构造带形成的应力背景和构造特征,发现构造带上不但发育多种类型圈闭,而且紧邻烃源岩,其上所发育的断层还为油气运移提供通道.结果表明,3种类型的构造带为油气勘探的有利区带.
Different types of structural belts developed owing to distinct tectonic stress field during the formation and reformation stage of the Hailaer-Tamtsag basin. To understand the features of different types of structural belts and the relationships between them and hydrocarbons, three types of structural zones-fault-related fold structure zone, detachment structure zone and transfer structure zone have been found from the location, time, bearing of trend, order of faulting and folding, distribution and origin of the tectonic development, with which correlate hydrocarbons tightly, on the basis of the interpretation of seismic data and the analysis of structure feature of representative section. Three types of structural zones are abundant in hydrocarbon, because there are many types of traps in structural zones and they are near the source rocks, furthermore, the faults having developed in structural belts serve as effective passages for oil migration through the analysis of their stress field and structural attitude.
Different types of structural belts developed owing to distinct tectonic stress field during the formation and reformation stage of the Hailaer-Tamtsag basin. To understand the features of different types of structural belts and the relationships between them and hydrocarbons, three types of structural zones-fault-related fold structure zone, detachment structure zone and transfer structure zone have been found from the location, time, bearing of trend, order of faulting and folding, distribution and origin of the tectonic development, with which correlate hydrocarbons tightly, on the basis of the interpretation of seismic data and the analysis of structure feature of representative section. Three types of structural zones are abundant in hydrocarbon, because there are many types of traps in structural zones and they are near the source rocks, furthermore, the faults having developed in structural belts serve as effective passages for oil migration through the analysis of their stress field and structural attitude.
引文
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[10]Li Zhongquan,Xu Shihai,Ying Danlin.Dynamic features of angular unconformityformation—extensional and compressional angularunconformities[J].Acta Geologica Sinica,2004,78(1):298-301.
[2]解国爱,肖文霞,张庆龙.鄂尔多斯盆地西南缘断层相关褶皱与油气圈闭构造[J].高校地质学报,2001,7(3):273-378.
[3]胡健民,宋子新,郭力宇.湖北武当地块北缘伸展滑脱构造特征[J].中国区域地质,1999,18(1):39-45.
[4]刘剑平,汪新文,周章保,等.伸展地区变换构造研究进展[J].地质科技情报,2000,19(3):27-32.
[5]周章保,汪新文,陶国强,等.临清拗陷东部新生代盆地变换构造分析及与油气关系[J].海洋地质与第四纪地质,2002,22(4):90-98.
[6]杨懋新,杨树锋,陈汉林,等.乌尔逊凹陷滑脱型构造样式与油气成藏[J].浙江大学学报:理学版,2003,30(5):598-600.
[7]陈均亮,吴河勇,朱德丰,等.海拉尔盆地构造演化及油气勘探前景[J].地质科学,2007,42(1):147-159.
[8]Suppe J.Principles of structural geology[M].Engle-wood Cliffs,N.J:Printice-Hall,Inc.1985:341-367.
[9]杨勉,付广,张云峰,等.构造变换带沉积充填特征与油气分布规律[J].大庆石油地质与开发,2008,27(3):15-19.
[10]Li Zhongquan,Xu Shihai,Ying Danlin.Dynamic features of angular unconformityformation—extensional and compressional angularunconformities[J].Acta Geologica Sinica,2004,78(1):298-301.
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