克拉美丽气田天然气处理装置工艺改造研究
Natural Gas Processing Device Renovation Research in KLML Gas Field
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- 引用格式:
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王治红,吴明鸥,柳海,张锋,曹洪贵,陶玉林.克拉美丽气田天然气处理装置工艺改造研究[J].天然气与石油,2016,34(5):0.doi:
Wang Zhihong, Wu Mingou, Liu Hai, Zhang Feng, Cao Honggui, Tao Yulin.Natural Gas Processing Device Renovation Research in KLML Gas Field[J].Natural Gas and Oil,2016,34(5):0.doi:
- DOI:
- 作者:
- 王治红1 吴明鸥2 柳 海3 张 锋3 曹洪贵3 陶玉林3
Wang Zhihong, Wu Mingou, Liu Hai, Zhang Feng, Cao Honggui, Tao Yulin
- 作者单位:
- 1.西南石油大学化学化工学院, 2.中国石油西南油气田公司天然气研究院,3.新疆油田分公司采气一厂
1.Southwest Petroleum University. College of Chemistry and Chemical Engineering;2.PetroChina Southwest Oil & Gasfield Company Research Institute;3.PetroChina Xinjiang Oilfield Company. l st Gas Production Plant
- 关键词:
- 天然气处理；节流；露点控制；丙烷制冷
Natural gas processing; Throttle; Dew point control; Propane refrigeration
- 摘要:
- 克拉美丽气田天然气处理装置采用注乙二醇防冻，JT阀节流制冷,低温分离脱水脱烃工艺。但克拉美丽气田自投产后,井口压力差异大、压力递减快、气量变化幅度大等特点越发明显,部分运行参数远偏离设计值,导致外输天然气水露点和烃露点达不到要求,给天然气处理装置可靠运行带来严重的影响。针对天然气处理装置存在的问题提出了“分子筛脱水、外加丙烷制冷和浅冷分离脱烃”工艺改造方案,原料气温度、压力以及气量变化具有更强的适应性,装置操作灵活且稳定,满足克拉美丽气田中后期开发的需要。工艺改造后液烃产量由124 t/d提高到156 t/d,产量增加了25.81,静态投资回收期为0.71 a,回收期较短。
The methods of anti-freezing by injecting ethylene glycol, J-T valve throttling refrigeration and low temperature separation dehydration hydrocarbon process were adopted for natural gas processing devices in KLML gas field. But after start-up of the KLML, features such as big differences in well head pressure, quick decline in pressure, large ranch of gas volume variation became obvious gradually. Some operation parameters deviated from the design value, which led to the fact that the dew point of water and hydrocarbon could not meet requirements and caused severe impact on safe operation of gas processing unit. In view of the above issues, the proposal of "molecular sieve dehydration, plus propane refrigeration and shallow cooling separation" was put forward, which showed more adaptability to the changes in feed gas temperature, pressure and gas volume. The requirements for the development of KLML gas field at middle & later stage were satisfied. After technological transformation, the yield of liquid hydrocarbons increased from 124t/d to 156t/d by 25.81%. The recovery period of static investment was 0.71 a, which was relevant short.
