涩北气田疏松砂岩气藏在开发过程中,总体上表现出了易出水、易出砂、产量递减快的开采特征。在以涩北一号气田为例,在气藏储层特征描述的基础上,通过对其开发现状的分析,分析了当前气井出水原因、水源及产水特征,出水水源包括有人工侵入水、凝析水、层内原生可动水、层内次生可动水、层间水以及边、底水。总结出了涩北一号气田的出水规律,即少量出水型、波动出水型、出水缓慢增长型、出水快速增长型。 During the development process, the loose sandstone gas reservoirs in the Sebei gas field generally showed the characteristics of easy production of water, easing of sand production and decreasing output. Taking Sebei No.1 Gas Field as an example, based on the characterization of gas reservoirs, this paper analyzed the causes of current water outflow, the characteristics of water source and produced water through the analysis of its development status. The water source of outflow includes artificial intrusion of water, Condensate water, the original layer of movable water, the layer of secondary movable water, interlayer water, and the edge of the bottom water. Summed up the Sebei gas field out of the law, that is, a small amount of water type, fluctuating water type, water slowly growing type, rapid growth of water.