The use of shielding gases in laser beam welding is particular interest for materials interacting with ambient oxygen, e.g., copper, titanium or high-alloy steels. These are often processed by remote where short welds (e.g., up to 40 mm seam length) commonly used. Such setups prevent gas nozzles from being carried along on the optics due scanner application and a small area needs be served loca...

This article considers different variants of natural gas supply in Ukraine which are based on the main tendencies regional markets and some important factors, such as: possibility to use storage system, changes government regulation innovations energy generation sphere. The purpose this work is substantiate current strategy basis quantitative methods. results are: Numerical estimation positive ...

With the increasing demand of natural gas in China, its production is extremely important to fulfill requirement society. However, reality, from well field often accompanied by formation water. For with low production, flow rate too carry out water bottom well. The will thus accumulate bore and be greatly diminished. To solve this problem, based on developing status M foaming surfactant Z301 sy...

The features of power supply for oil and gas enterprises, the design, operation turbine plants, methods organizing a system with elements its own generation are considered, an autonomous organization direct cur-rent link has been developed to ensure stable units operating in paral-lel.