Review of variable speed drive technology in beam pumping units for energy-saving
Chaodong Tan, Zi‐Ming Feng, Xiaolei Liu, Jianchuang Fan, Wei Cui, Rui Sun, Qingyang Ma
Abstract
Beam pumping units have been widely used in oilfields worldwide due to its simple structure, strong field adaptability, and convenient maintenance. Different energy-saving technologies have also been broadly applied in various beam pumping units. Among these energy-saving methods, the variable speed drive is one of the most acceptable techniques in the oil and gas industry. In this paper, the energy-saving technology of variable speed drives is discussed in detail for beam pumping units pointing out existing difficulties and current research status in kinematics. Three application examples of a variable speed drive in Daqing oilfield, the largest oilfield in China, is shown.