Annulus triphase flow log has five measurements, which are used to make quantitative interpretation of the triphase Li. e. oil, gas & water) production profiles of pumping wells under normal production conditions. Measurement is made in collecting and stationary mode.
In addition, in high water content and low flow producing well with pumping unit, good result can not be obtained by using this kind of tool because it is influenced by slippage effect and investigation range.
Meanwhile,it is pointed out that since the majority of oil wells in China are pumping wells and production rate of single wells is also lower, it is necessary to spread annulus logging tools and use packer type tools to improve their reliability and successful logging run rate.
The main technology for high power fiber lasers, including laser diode beam shaping, fiber laser pumping techniques, and amplification systems, are discussed in detail.
The heat transfer enhancement under identical pumping power condition for the attack angle of 30° is larger than that for the attack angle of 45° either for staggered or for aligned tube bank arrangement.
Meanwhile, principles of several typical pumping methods such as mechanical, electromagnetic or peristaltic pumps will be illustrated.
pumping power per unit heat transfer area were plotted.
Proton Pumping in Growing Part of Maize Root: Its Correlation with 14-3-3 Protein Content and Changes in Response to Osmotic Str