Development of lower part of Fuyu reservoirs in southern Placanticline is in testing stage.
长垣南部油田下部扶余油层的开发尚处于试验阶段。
2
Reverse structures in Songliao basin are mainly wide and gentle folds and placanticline with small deformation.
松辽盆地的反转构造以宽缓的褶曲和长垣背斜为主，属小变形量的反转构造。
3
Besides Putaohua reservoir of Daqing Placanticline in the northern part of Songliao Basin, Satellite oilfield, rich in reserves and high in single well oil production, is the largest oilfield.