The Research On Transportion Law Of Anticorrisive Pipeline Used In Oilfield

In view of corrosion phenomenon occur on the pipeline of oil field, this thesis studied three kinds of anticorrosive pipelines which were used in the construction of oil field. They are: pipeline with nanometer layer which is used to transport crude oil and waste water, the polythene composite pipeline with steel skeleton and the successively strengthen polythene composite pipeline, both of which are used to transport waste water of oil field. It studied the transportion law of these pipelines. The pipeline with nanometer layer is one of them. It was processed with nanometer three-proofing paint that has the similar construction with lotus leaf. This kind of paint has the nature of hydrophobicity and oleophobic property. After doing experiment in the laboratory and field, we know that the pipeline with nanometer layer is able to not only transport the emulsion with lower pressure gradient and in lower temperature, protect corrosion, antiscale, but also be used for a longer time. By mean of predicting the economic results, the result is that the initial investment of this kind of pipeline is relatively low, the economic is noticeable. To comprehend the characteristic of other two kinds of nonmetal pipelines, the experiment was done, soon afterwards the common formulas for calculating on way resistance were verified and modified. These formulas are Wood Formula, H.Blasius Formula, Hazen-Williams Formula. The head loss of local resistance was also calculated. This can supply fundamental datum for hydraulic design and thermodynamic design, which can enhance its accuracy and credibility. This is very significative to the construction of oil field.