Development Method for Upper (Downer) Layers of Class II Oil Reservoirs in the East of Middle South Area of Lamadian Oilfield

Now, first set of class II reservoirs of DaQing Oilfield development would be fully completed, the problem of sequence and mode selection in the upper or lower layer development need to settle. In order to determine on the class II reservoir development way, south-middle-east block of Lamadian oilfield was chosen as example to carry out research, used technical and economical method. In technology section, from the perspective of the blocks in static and dynamic data, using statistical methods to analyze, to carry out the potential fluctuation return series, determine the PII1~GI5 for the next step development zone. Economically, using the theory of big data, establishes the system model, established method of drill new wells or the use of old well pattern development, and mode development selection chart, determines the south Middle East areas development way. The research results show that when oil prices above $50/bbl and at present, the development of new drilling shall be used. The method is effective for oil blocks development technical support, the layered sandstone reservoir development has a certain guiding significance.