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石油与天然气化工
CHEMICAL ENGINEERING OF OIL & GAS
靖边气田三甘醇脱水溶液净化方法研究
翁军利夏勇黄昌猛陈星宋丽丽张志锋薛仁雨
中国石油长庆油田分公司第一采气厂
2017
摘要靖边气田脱水用三甘醇溶液在长期使用过程中，由于地层水携带杂质、管线腐蚀产物、溶液降解产物等杂质不断累积，造成溶液品质下降，影响溶液的吸收和再生性能。针对三甘醇的污染情况，采用气相色谱仪等仪器分别对靖边气田三甘醇溶液的有效成分及杂质种类和含量进行了定性及定量检测，开展了单一净化方法的实验及工艺条件优化，并根据净化结果，研究了不同组合净化工艺，优选了石英砂过滤十活性炭脱色十离子交换组合工艺作为靖边气田三甘醇溶液净化工艺。采用优选的组合净化工艺处理现场废弃的三甘醇，净化后溶液中固体悬浮物、盐离子含量显著降低。将净化后的三甘醇用于集气站现场脱水，结果表明，净化后的溶液具有良好的脱水效果，能够满足生产需求。
关键词靖边气田三甘醇溶液净化工艺效果评价
D0I:10.3969/i.issn.1007-3426.2017.04.004
中图分类号：TE644
文献标志码：A
Studyonthepurificationmethodoftriethyleneglycolsolutionfor
dehydrationinJingbianGasfield
Weng Junli,Xia Yong,Huang Changmeng,Chen Xing,Song Lili,Zhang Zhifeng,Xue Renyu
The first Natural Gas Plant, PetroChina Changqing Oilfield Company
Abstract: During the long-term use process of triethylene glycol in Jingbian Gasfield , solutior quality has been declined because of the accumulation of formation water impurities , pipeline corrosion products and solution degradation products , which affected the absorption and regeneration performance of triethylene glycol solution . The effective components of triethylene glycol solution , the type and content of the impurities in the solution were detected qualitatively and quantitatively . Experiments and process conditions optimization aiming at single solution purification method were carried out . According to the result of purification , different purification processes were combined . The combination process of quartz sand filtration + actived carbon decoloration + ion exchange resin was selected to purify the triethylene glycol solution of Jingbian Gasfield . The concentration of suspended solids and salt ions reduced significantly by optimized combination purification process Meanwhile, purified triethylene glycol was used in dehydration of gas gathering station . It turned out that purified solution had good dehydration effect , which could meet the production requirements -
Key words : Jingbian Gasfield, triethylene glycol solution , purification process , effect evaluatior
靖边气田集气站和净化厂天然气脱水均采用三甘
醇溶液吸收法1-2]，在长期使用过程中，三甘醇溶液受到地层水携带杂质的污染、产生结晶盐及发生高温降
解等[36]，不仅影响了天然气的脱水效果，也抑制了三甘醇的循环再生。本研究针对靖边气田三甘醇溶液的污染问题，在调研现有的减压蒸馏、离子交换等三甘醇
作者简莓军利（1974一），高级工程师，硕士，毕业于西南石油学院，现就职于中国石油大庆油田分公司第一采气厂，从事天然气净化及暂料摊。E-mailwjl2_cpetrochina.com.cen