摘要
大多数气藏属气-水两相系统,水与气长期接触,部分水进入气中而对气藏和凝析气藏的相态产生影响,在生产过程中会形成凝析水,导致井底、管线积液,形成天然气水合物而堵塞通道,酸气则会加剧管线、设备、仪表的腐蚀,严重影响正常生产。因此,正确认识影响气藏气中水含量的各因素是非常重要的。通过图版估算法,对压力、温度、气体组成、液态水的含盐量等对天然气中气态水含量的影响作了详细的分析,并对天然气脱水工艺进行了简要的探讨。这对天然气中水含量的准确确定以及气藏的高效开发具有重要指导意义。
Most gas reservoirs are gas-water systems. Water and gas contact for a long time so that some water gets into the gas and has an impact on fluid phases. In the process of production, those water may become condensed water which lead to hydrops at the bottom of the well and pipeline. The gas hydrates formed thereby will jam the channels. Meanwhile, the acid gas will exacerbate cor- rosion of pipelines, equipments and instruments. It seriously affects the normal production. Therefore, it is very important to under- stand the factors affecting the water content in gas reservoirs correctly. By the method of chart estimation, this paper analyzed vari- ous factors including pressure, temperature, gas composition, salinity of liquid water on vaporous water content in natural gas in de- tail, and briefly discussed the natural gas dehydration process. It has an important guiding significance to determine water content accurately and to develop gas reservoirs efficiently.
出处
《油气藏评价与开发》
2013年第1期59-64,共6页
Petroleum Reservoir Evaluation and Development
关键词
天然气
水含量
凝析水
脱水工艺
高含硫
natural gas, water content, condensed water, dehydration process, high sulfur
作者简介
陈丽群（1987-），女，在读硕士研究生，研究方向为油气田开发。
