Method and device for determining oilfield production working conditions

The embodiment of the invention provides a method and device for determining oilfield production working conditions. The method comprises the following steps that a dynamic control chart of an oil layer is determined; each area in the dynamic control chart reflects a coordinative relationship of corresponding pump efficiency and flowing pressure; the pump efficiency and flowing pressure of each single well corresponding to the oil layer are obtained; the area to which each single well belongs in the dynamic control chart is determined according to the pump efficiency and flowing pressure of each single well; the production working condition of each single well is determined according to the area to which each single well belongs in the dynamic control chart. Accordingly, identification on the oilfield production working conditions can be achieved, a reference base is provided for subsequent production adjusting, and therefore the system efficiency of an oilfield is improved, and the yield of the oilfield is increased.