CAJ | 학술논문

根据地震剖面解释成果，对塔中-巴楚地区反转构造变形特征和发育期次进行了探讨和研究，并分析了反转构造的石油地质意义。基底正断层形成以后在加里东早期、加里东中期、海西晚期-燕山晚期发生了构造反转。受基底正断层的影响，研究区发育继承反转型、截断取直型和反向截断型3种类型的反转构造：当基底正断层倾角较小时，构造反转沿先存正断层发生，形成继承反转型反转构造；当基底正断层倾角较大不利于反转时，正断层为后期的逆冲断层提供应力集中点，形成截断取直型反转构造；基底正断层也可能被后期倾向相反的逆断层所错断，形成反向截断型反转构造。研究区内3期构造反转形成的圈闭与寒武系烃源岩生排烃期具有良好的时空配置关系，有利于油气聚集成藏。
근거지진부면해석성과，대탑중-파초지구반전구조변형특정화발육기차진행료탐토화연구，병분석료반전구조적석유지질의의。기저정단층형성이후재가리동조기、가리동중기、해서만기-연산만기발생료구조반전。수기저정단층적영향，연구구발육계승반전형、절단취직형화반향절단형3충류형적반전구조：당기저정단층경각교소시，구조반전연선존정단층발생，형성계승반전형반전구조；당기저정단층경각교대불리우반전시，정단층위후기적역충단층제공응력집중점，형성절단취직형반전구조；기저정단층야가능피후기경향상반적역단층소착단，형성반향절단형반전구조。연구구내3기구조반전형성적권폐여한무계경원암생배경기구유량호적시공배치관계，유리우유기취집성장。
On the basis of the seismic interpretation,the deformation features and evolution periods of inversion structures and their significance on hydrocarbon in the Tazhong-Bachu aera are studied in this paper.The base-ment normal faults were inversted in the Early and Middle Caledonian and Later Hercynian to Later Yanshanian, respectively.Controlled by the basement normal faults,three styles of inversion structures were developed in Tazhong-Bachu area:(1 )Inheritance inversion type.When the dip of the basement normal faults was small, inheritance inversion structures formed by the later inversion acted along the pre-existing normal faults;(2 ) Short cut type.When the dip of basement normal fault was big,the normal fault might not be favorable for its further inversion and forced the inversion to form in the adjacent faults,and the basement normal faults provided stress concentrations point for the thrust faults,and (3 )Reverse cut type.The inversion structures formed by the later thrust faults cut the basement normal faults which have the opposite tendency.The periods of traps formation resulted from structural inversion were greatly match to the peak stages of hydrocarbon generation and expulsion,so inversion structures in the studied area are favorable to hydrocarbon accumulation.