Heat exchangers play an important role in power, the chemical industry, petroleum, food and many other industrial productions, while compact heat are more favored applications due to their high thermal efficiency small size. This paper summarizes research status of different types exchangers, especially results transfer pressure drop printed circuit so that researchers can have overall understa...

The exactitude of petroleum fluid molecular weight correlations affects significantly the precision engineering calculations and can make process design trouble-shooting inaccurate. Some methods in literature to predict are used commercial software simulators. According statements made literature, Lee–Kesler Twu most engineering, other do not exhibit any significant advantages over correlations...

For this paper, the authors studied behavior of castor oil, when it accidentally reaches a hot surface. Thus, lowest temperature at which oil ignited least once in three tests and highest did not ignite were determined. To determine as accurately possible these two temperatures, total 29 performed. The procedure complies with ISO 20823:2018 Petroleum related products -Determination flammability...

Conventionally, high-pressure water-based fluids have been injected for hydraulic stimulation of unconventional petroleum resources such as tight gas reservoirs. Apart from improving productivity, frac-fluids caused environmental and technical issues. As a result, much the interest has shifted towards alternative frac-fluids. In this regard, n-heptane, an frac-fluid, is proposed. It necessitate...

OBJECTIVES There are no recognized analytical methods for measuring oil mist and vapours arising from drilling fluids used in offshore petroleum drilling industry. To inform the future development of improved methods of analysis for oil mist and vapours this study assessed the inter- and intra-laboratory variability in oil mist and vapour analysis. In addition, sample losses during transportati...

That mineral oils and their derivatives would induce squamous-cell carcinoma when painted on to the skin of mice was reported by Twort and Twort (1931), and in a series of other papers by these authors which have since been statistically analysed by Irwin and Goodman (1946). More recent work has demonstrated that both straight-run distillates (Woodhouse and Irwin, 1950) and high boiling point f...

the continuous development of global economy with decreasing in available hydrocarbon sources and increasing discovery and extraction costs due to decrease in-situ oil and gas reservoir, displays the necessity of using new techniques for the improve rate of penetration and productivity in well. nanotechnology has already contributed significantly to technological advances in the energy industri...

the late detection of the kick (the entrance of underground fluids into oil wells) leads to oil wellblowouts. it causes human life loss and imposes a great deal of expenses on the petroleum industry.this paper presents the application of adaptive neuro-fuzzy inference system designed for an earlierkick detection using measurable drilling parameters. in order to generate the initial fuzzy infere...