中坝气田须二气藏水处理回注跟踪监测分析  

Treatment, Tracking, Monitoring and Analyzing of T_3X^2 Gas Reservoir Water in Zhongba Gas Field

作　　者：李文英[1] 程一[1] 张荣曾[1] 李伟[1] 肖科[1] 

机构地区：[1]中油西南油气田公司川西北环境监测中心

出　　处：《石油与天然气化工》2005年第2期143-145,共3页Chemical engineering of oil & gas

摘　　要：中坝须二气藏不断开采,已经出现了水侵,目前日产气量为60×104 m3左右,日产水240m3 左右,将地层水回注地层,既能解决地层水出路问题,又能彻底地清除地层水对环境的污染。通过对须二气藏产水情况的调查,对气藏水处理前后及露头区水质的Ca2+、Mg2+、CO2-3 、SO2-4 、悬浮物、挥发酚、油、COD、pH值、硫化物、氯根等项目进行了监测、分析,认为须二气藏地层水的处理效果能达到回注水的要求,处理后回注是完全可行的。文中分析了回注前景, 并提出了对露头区定期监测的建议。The gas flow of T_3X^2 gas reservoir in Zhongba gas field has reached about 60×10~4 m^3/d ,and also the water invasion gas has occurred with it. The rejection of the formation water can thoroughly not only solve the problem of how to deal with it but also can completely eliminate the environmental pollution. The water flow of T_3X^2 gas reservoir has reached around 240 m^3/d at the present time. This article analyzes the present status of water treatment by investigating producing water situation of T_3X^2 gas field and monitors and analyzes some items before and after the treatment, such as Ca^(2+), Mg^(2+), Ba^(2+)+Sr^(2+), CO^(2-)_3, SO^(2-)_4, suspended substance(SS), volatilization phenol, oil, COD, pH, sulfide, Cl^- and so on. The results show the rejection is fully feasible after the formation water is treated to meet the standard, and it is necessary to monitor periodically the outcrop area.

关 键 词：水处理 监测分析 中坝气田 跟踪 中坝须二气藏 Co3^2- SO4^2- Ca^2+ MG^2+ 地层水 回注地层 处理效果 定期监测 产气量 悬浮物 挥发酚 COD pH值 硫化物 回注水 露头 污染 环境 

分 类 号：X741[环境科学与工程—环境工程]