... Abstract In this paper, a state-of-the-art wire rope is chosen for investigation regarding its applicability as a sucker rod string. Finite element simulation with Abaqus has been used for a detailed analysis of the rope's performance and possible failures along with its length. The sucker rod...

... This paper presents a system that can prevent the occurrence of compressive loads for parts or even the complete sucker rod string. This system is a combination of two inventions; "A pumping device for pumping fluids" ( Hofstätter, H., 2008 ) and "New working principle for artificial lift system...

... Parameters Pumping Depth 7000 ft Average fluid gradient 0.4 psi/ft Target production at 100 % pump efficiency 600 BFPD Subsurface pump Size 1.75 inches Producing well head pressure 150 psi Pump intake pressure 100 psi Rod String Tapers UHS (1" , 7/8...

... P s = P c + ρg ( L – H d ) The polished rod and pump indicator diagrams obtained from test are shown in Figure 3 , based on the established simulation analysis model of sucker rod string, pump indicator diagrams can be calculated through the polished rod indicator diagrams...

... is inserted into the inner bore of the packer, a seal and a fixation are formed between the pump barrel outer surface and the packer inner bore, the annular space between casing and rod string is the oil flow passage. The rod string is hollow, at its bottom, a downward check valve is screwed. When the oil...