Method for building macroscopic control chart according to main controlling factor classification

The invention provides a method for building a macroscopic control chart according to main controlling factor classification. The method comprises the following steps of (1), oil pumping unit pump efficiency theory calculation mode building, (2), macroscopic control chart main controlling factor and classification standard researching, (3), oil well classification scheme determination, (4), average theory pump efficiency line A determination, (5), theory pump efficiency upper limit and lower limit line B determination, (6), theory pump efficiency upper limit and lower limit line C determination, (7), liquid supplying capacity boundary line F determination, (8), break-off losing line G determination, (9), minimum self-jet-flow pressure boundary line D determination, (10), reasonable area pump efficiency lower line E determination and (11), area partitioning. The method for building the macroscopic control chart according to main controlling factor classification has the beneficial effects that according to the