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由于长期继承性断裂活动的影响,造成了现今断块油田的复杂性,主要表现在:断层多、断块面积小;含油层位多且不连续;各断块含油层位、储油物性、油气产量都有很大差别。这些特点使得勘探和开发工作不能一次完成。因而在勘探和开发的全过程中都要开展构造综合研究。油田内部构造图的“空白区”,油田边界,油田与油田间的连接部,油田中间的“小洼子”,以及油田的深部都是进行构造综合研究的重要对象。复杂断块油田的构造研究任务,除了查清局部构造和区域构造之外,还要着重研究有利的含油层位和含油地区,解释现有钻井含油层位和断层之间的关系;解释现有富集高产形成的条件和干井产生的原因。构造综合研究的手段,是充分利用现有的物探、钻井和开发资料,采用较为灵活的成图方法,力争有较高的作图精度。
Due to the influence of long-term inherited fault activity, the complexity of today’s fault-broken oilfields is mainly caused by the fact that there are many faults and small area of fault blocks; oil-bearing beds are many and discontinuous; the oil- Oil and gas production are very different. These features make it impossible to complete exploration and development work in one go. Therefore, in the whole process of exploration and development should carry out comprehensive structural studies. The “blank area” of the internal structure map of the oilfield, the boundary of the oilfield, the connection between the oilfield and the oilfield, the “Xiaowazi” in the middle of the oilfield, and the deep part of the oilfield all play important roles in comprehensive structural research. In addition to locating the local structure and regional structure, it is also important to study the favorable oil-bearing beds and oil-bearing areas to explain the relationship between the existing drilling oil-bearing beds and faults; to explain existing Enrichment of high-yielding conditions and dry-well causes. The means to construct a comprehensive study is to make full use of the existing geophysical prospecting, drilling and development materials and adopt a more flexible mapping method so as to strive for higher mapping accuracy.