کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4995050 1458489 2017 39 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of pipe inclination on holdups/velocity ratios of oil-water flow without and with addition of drag-reducing polymer
ترجمه فارسی عنوان
تاثیر تنش لوله بر نسبت وزنی / سرعت جریان نفت بدون و با افزودن پلیمر کشنده
کلمات کلیدی
نفت و آب، کاهش پلیمر، دارنده نسبت لغزش،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
چکیده انگلیسی
In petroleum industries, the demand for effective design and operation of the oil-water transport systems is very high, and holdup of each phase is one of the important hydrodynamic parameters needed for such design and operation. This parameter can be affected by several factors one of which is the presence of the drag-reducing polymers in the oil-water flow. Therefore, the focus of this experimental study is on the effect of the drag-reducing polymer on the holdups and by extension, velocity ratios of the oil-water flow. Specifically, the investigation of the holdups and velocity ratios of the oil-water flow before and after the addition of the drag-reducing polymer was carried out in horizontal (0ᴼ) and different inclined (−5ᴼ, +5ᴼ and +10ᴼ) acrylic pipe with 30.6-mm ID. The investigation was conducted using flow conditions of 0.4, 0.8 and 1.6 m/s mixture velocities and 0.1-0.9 input oil volume fractions at each inclination. In each experimental run, the holdup of each phase was measured after steady flow was achieved using quick closing valves. Thereafter, the master solution of the polymer which was prepared at 2000 ppm water was injected at controlled flow rates to provide 40 ppm of the polymer in the water phase and the measurement was repeated. It was found generally that the water holdups and hence, the velocity ratios were increased after the addition of the polymer particularly in water-dominated flow regions. The velocity ratios also increased with the increase in the mixture velocities at these same flow regions. Finally, water was found to flow faster for separated flow at 0.4 m/s while for the dispersed flow regions at higher mixture velocities, the dispersed phase was in general the faster flowing phase.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Multiphase Flow - Volume 89, March 2017, Pages 359-374
نویسندگان
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