As to the characteristics of low pressure,low porosity and low permeability for the reservoirs in Tuha oilfield,a jet gas lift production alternative technology for development of low production well is researched.

By using three-dimensional numerical simulation techniques together with the Eulerian-Eulerian method,a numerical simulation research of the gas-solid phase flows within the gas-solid injector which is the key element of clean coal power generation system is performed in this paper.

By using three-dimensional numerical simulation technique together with the Lagrangian and Eulerian methods, a detailed numerical simulation research of an important parameter affecting the conveying characteristics of the convergent gas-solid injector was performed.

On the testing equipment of a pressurized pneumatic conveying system, a detailed investigation of an important parameter, the location of driving nozzle, which can affect the conveying characteristics of the convergent gas-solid injector was performed.