The price of a barrel of crude oil doubled within a few months last year. Although prices have been easing lately, for those who paid more than $3 for a gallon of gas, the memory is not likely to fade quickly. But worries about higher gas prices don’t end at the pump. Oil price shocks—sudden and sharp increases in the price of oil and its derivatives like gasoline—are associated in the popular ...

The errors associated with therModynamic performance calculations are discussed with particular reference to systems with a high oil charge. It is shown that calculations made using published refrigerant data can be very misleading as no account is taken of the oil solubility effects. Pressure-enthalpy charts are presented for refrigerant R12 oil mixtures, for a range of oil concentrations. The...

This paper opens a new page in the theory of electric-centrifugal pump control and oil production. Emerging ideas give us opportunity to predict state centrifugal during operation, facilitate approach centrifugal-pump selection procedure, provide scientific explanation separation process, explore scaling processes pumps, develop salt-deposition prediction methods bring closer basis for automati...

This paper discusses the performance monitoring and optimization of large scale jet pumping in Mangala field, one of the biggest onshore fields in India. Mangala field is characterized by multi-Darcy sandstones, containing waxy and viscous crude oil. Currently, the field is producing at plateau of 150,000 BOPD. The base development plan for the field included hot water flooding; this also makes...

For a rolling piston type of rotary compressor, oil supply system consisting of individual lubrication elements such as pumps, oil passages, and sliding surfaces has been modeled by employing equivalent electric circuit. Numerical solutions of the oil network model include total oil flow rate into the shaft hole, oil flow rates to various sliding surfaces, and oil leaks through roller end clear...

Biodiesel made from different source materials usually have different physical and chemical properties and the concentration of biodiesel in biodiesel‐diesel blends varies from pump to pump and from user to user; all these factors have significant effects on performance and efficiency of engines fueled with biodiesel. To address these challenges, regressions based on near‐infrared spectroscopy ...

Nigeria depends heavily on importation of goods and machines. A shift from this trend requires the development of locally available technology. The design analysis of a gear pump that aimed at delivering 4.0913x10-4m3/s (24.55litres/min) of oil was carried out in this work. Available technology was utilized in the design and fabrication of the external gear pump. The design considered relevant ...