... the production optimization. Properly selected driving frequency can provide matching between pumping rate and reservoir inflow performance. Maturity of VSD control methods for Sucker-Rod Pumping systems today is at an advanced stage. However, the control algorithms for the asynchronous drive of the pumping unit...

...The dimensionless characteristic curve of sucker rod pump Pump characteristic curve Abstract API TR 11L, which is recommended by API as a way of design calculation for sucker rod pumping system, is including a series of dimensionless charts and calculation formula. Academic and practical...

... is the optimization of artificial lift systems in mature oil fields. Nowadays sucker rod pumping systems are still by far the most frequently used artificial lift systems. These pumps represent an efficient and simple way to increase the oil production. On the one hand from the technical point of view, this system...

... for carbon fiber rod. Rod string mechanics prediction model There are mainly four type of design methods for composite rod string. Semi-formula calculation method is easy to use, but its limitations is also obvious. API recommendation method over-simplifies the sucker-rod pumping system mechanic model...

... the stator and rotor owing to reduced viscosity and poor efficiency due to fluid slippage. The strategy was revisited and Sucker rod pumps were initially installed as soon as the well came on production. Being shallow wells on VSD control, they were safely ran at 3 SPM and that kept the sand from entering...

... and studied under the condition of single pump system. In Xinjiang oil field, combined lift method of sucker rod pump and injection pump has been successfully applied in wells where thin oil is doped into heavy oil to decrease the viscosity. It is shown that combined-type consecutive lifting method...

... as 20xx[AD1]) completed for a natural lift with no provision for installing artificial lift system. Later, it was recommended to install Sucker Rod Pump (SRP) as the most suitable Artificial Lift (AL) system. Conventionally sucker rod down-hole pump is installed by running a barrel assembly on the bottom...

... Abstract After 1859, sucker rod pump was invented commercially by C. E. Drake 1 , it was used vast majority of wells throughout the world. Thus, it became an oil symbol which comes to mind first for people even who are not engaged in this industry. Although SRPs are installed in about 90...