Foam Drainage Gas Field Development In The Research And Application

Yulin gas field, the sub-continent-Mizhi gas reservoirs with low porosity and low permeability, low pressure characteristics, along with the extension of the development, formation pressure drops, a substantial increase in the number of low-yielding gas wells, because gas production is low, slow flow, often appear wellbore fluid. Meanwhile, the gas has a low yield, with less condensate, some wells high salinity water features, you need to take the appropriate technology to eliminate foaming wellbore fluid, improve well productivity, and ultimately to improve the gas when the gas production rate and contribution rate of gas production purposes. By temperament low-yielding wells, water quality analysis, the smallest portable injection flow calculation, process characteristics such analysis, the foam drainage gas recovery technology to optimize the research, developed a high resistance to salinity, resistance to oil, methanol hy-3k new bulb scheduling agent, optimizing the filling process parameters, and developed the foaming process parameter calculation software, dissatisfied decision foam agents preferred, parameter optimization, and the supporting technology and other issues, the formation of a low-yielding wells foam drainage gas recovery technology to improve gas mining gas when gas production rate and the contribution rate, improve economic efficiency gas field development.