Techniquesof Oil Well Equipment Diagnostics Using Dynamomemter Card

Abstract

Abstract Currently, the most widely used equipment to oil extraction is a sucker rod pump. More than 70% of oil wells are equipped with this mechanism. The advantages a sucker rod pump are usage simplicity and high efficiency, but the main drawback is difficulties with diagnostics and repairing. So providing continuous operation of oil well equipment is the key issue in oil well maintain process. Nowadays, the most efficient method of oil well equipment diagnostics is building and an analysis of dynamometer card, namely dependency of load on rod string on polished rod displacement. This diagnostic method is widely used due to simplicity of its implementation, as well as clarity and easy interpretation of the results. If there are any problems in sucker rod pump operation, shape of dynamometer card changes. Moreover each specific fault in operation has unique characteristic shape of dynamometer card. In this article author proposes techniques overview of oil well equipment diagnostic using dynamometer card, the use of which is a big step in “Industry 4.0” model implementation in the oil production field.