A frequency-elastic drive mode for a sucker rod pumping system is introduced to reduce its
polished rod peak loads and the total energy consumption. Numerical modeling and an …

Low oil prices at the stock market and high water cuts of the produced fluid, force the oil
companies to continuously optimize their facilities to meet the actual requirements regarding …

When the oil price is low, cost optimization is vital, especially in mature oil fields. Reducing
lifting costs by increasing the mean time between failure and the overall system efficiency …

This paper presents the Pump Test Facility at Montanuniversitaet Leoben and describes its
application for testing, training and teaching as part of the cloud-based testing and learning …

This paper presents a thorough overview of hydraulic stimulation techniques, conducted in
laboratories. It further analyses field experiments and ongoing projects for geothermal …

An advanced dynamic finite element model is presented that diagnoses the downhole pump
performance of sucker rod pumping systems, applicable for any pumping conditions and …

Artificial lift systems (ALS) are used in mature oil fields, which have insufficient pressure to
produce hydrocarbons naturally. Nowadays, sucker rod pumping systems hold a significant …

Finding new oil and gas that can be developed economically is getting more difficult and
challenging today. To meet the oil and gas demand, it is therefore important to focus on the …

Low instable oil prices at the stock market and an increasing water cut force engineers to
constantly improve and redesign their methods in order to optimize efficiency. The use of …

Tubing string will buckle under radial constraint and axial loading, and then contact with the
constraint pipe (casing string). The contact between the strings may occur in any position, in …