论文部分内容阅读
酒东是走廊盆地中面积最大的中、新生代坳陷。早在五十年代初期即进行油气勘探,因受当时勘探技术条件限制,迟迟未打开局面。新近的勘探和研究成果表明,该坳陷具有较优越的石油地质条件,是走廊盆地较重要的含油气地区之一。坳陷的中新生代构造演化经历了五个时期,其中早白垩世断坳期属深湖一半深湖相,沉积稳定,厚度较大,是重要的生油岩层发育期。坳陷的区域构造格局由两个凹陷带一个凸起带组成,其中的南部凹陷带是下白垩统沉积主体部位,下白垩统的分布范围,约占凹陷带总面积的96%;且发育有多种圈闭和一定储集体,是坳陷的主要油气勘探场所。因而加强该区地震勘探和加速参数井钻探,进一步了解该区石油地质情况,为预探作准备是十分必要的。
Wine east is the largest Cenozoic Cenozoic depression in the corridor basin. As early as the early fifties that is, oil and gas exploration, due to the exploration of technical conditions at the time, has yet to open the situation. Recent exploration and research results show that the depression has superior petroleum geology and is one of the more important hydrocarbon-bearing areas in the corridor basin. The Mesozoic-Cenozoic tectonic evolution of the depression experienced five periods, of which the Early Cretaceous fault-depression period is one-half of the deep lacustrine facies of the deep lake, with stable deposition and large thickness, which is an important oil-bearing formation development period. The regional tectonic pattern of the depression is composed of two sag zones with a raised zone, of which the southern sag zone is the main body of the Lower Cretaceous and the Lower Cretaceous, covering about 96% of the total area of the sag zone. A variety of traps and certain reservoirs are the major oil and gas exploration sites in the depression. Therefore, it is necessary to strengthen the seismic prospecting and accelerate the parameter drilling in the area to further understand the petroleum geology in the area and prepare for the pre-exploration.