Simulation on the inner flow field of a horizontal tubes of falling film evaporator in a refrigeration system was performed using two-phase flow model VOF in FLUENT,and the influence of different tube arrangements on the flow field was examined.

In this study,soil moisture and water physiological indexes under different treatments during grape ripeness were measured and analyzed in order to investigate the effect of layout style of pipeline and technical parameters of drip irrigation system on grape’s growth,yield and select the optimal technique parameters of drip irrigation that suitable for TuHa Basin.

Based on the study of the gas reserve scale and oil-gas distribution for ordinary heavy oil reservoir with gas cap of Cao 31 fault block in Lean oilfield, using reservoir engineering and numerical simulation, optimizing study on development technical limits for oil reservoir with small gas cap including production method, well pattern, waterflooding time is carried out.

Nine sorts of well patterns for thermal recovery are designed for three types of super heavy oil reservoirs in Shengli petroliferous province.

Optimal well pattern and optimum fractures are the important link of development program,they also play a decisive part in expanding recoverable reserves,recovery factor and production of natural gas.