... 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 string is a key component of sucker rod pumps, transferring the reciprocating...

... Rod Anti-Buckling System (SRABS), which can entirely prevent compressive loads from the sucker rod string by a redesign of the standing valve, the advantageous use of the dynamic liquid level, and the on a case-by-case basis application of a tension mass. This results in complete buckling prevention...

... 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...

... and the pump barrel and the process of loading and unloading of the oil column, the numerical solution technology is adopted, which can reproduce the state of deformation of the rod string in a stroke, and gain the indicator diagram of the down hole pump and the efficiency of the system the down hole rod...

... 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...