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有水气田进入中、后期开采 ,随着气藏压力的下降 ,地层水会逐渐侵入气藏 ,随着天然气一道流向地面 ,不仅给采气生产造成困难 ,而且也带来环境问题。为减少气田水对环境的影响 ,目前对气田水最有效的处理方式是回注处理 ,但对不同气藏的气田水 ,同时进行回注时 ,要保证回注成功和回注系统正常运行 ,必须对水质进行配伍实验。本文针对西南油气田分公司川西北气矿的中坝须二气藏与雷三气藏水的水质特征 ,进行水质配位实验 ,从而了解影响回注的因素 ,并提出解决的措施。
As water and gas fields enter the middle and late stages of mining, as the pressure of the reservoir decreases, the formation water will gradually invade into the reservoir. As the natural gas flows to the ground, it will not only cause difficulties in gas production but also cause environmental problems. In order to reduce the impact of gas on the environment, the most effective treatment for gas field water is reinjection. However, for gas fields with different gas reservoirs, the successful reinjection and the normal operation of the reinjection system should be ensured. Must be compatible with water quality experiments. In this paper, according to the water quality characteristics of Zhongba Xuesa gas reservoir and Leisan gas reservoir in Northwest Sichuan gas field in Southwest Sichuan oil and gas field, water quality coordination experiments were conducted to understand the factors affecting reinjection and propose solutions.