泌阳凹陷新庄油田走滑断层的发现及成因分析

Discovery of strike-slip fault and its origin analysis in Biyang depression of Xinzhuang oilfield

泌阳凹陷正断层较多,走滑断层研究较少。随着勘探开发程度的提高,局部构造的日益落实,一些构造现象用正断层无法解释。文章以新庄油田为例,根据构造的不协调性、不协调带两侧的拖曳牵引现象、时间切片及岩心证据等,首次在泌阳凹陷内部发现、论证了走滑断层的存在,并探讨了其形成模式。

As there are many normal fauhs in Biyang depres sion,the research on strike-slip fauhs is seldom carried out.With the advancement of exploration and develop ment,more and more local structures have been figured out.However,some of these structures can not be ex- plained in the view of normal faults.Taking Xinzhuang oilfield as an example,the article demonstrates the exist- ence of strike-slip fauhs in Biyang depression and discus- ses its formation mechanism for the first time,which is based on the incoordination of structure,dragging-pul- ling phenomenon on both sides of the incoordination belt, time slice,drilling core,etc.