| 气井井筒跨音速气水分离与旋流排液技术 |
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| 引用本文： | 王俊奇,徐永高,薛中天,徐惊雷,白博峰.气井井筒跨音速气水分离与旋流排液技术[J].石油学报,2006,27(5):119-123. |
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| 作者姓名： | 王俊奇 徐永高 薛中天 徐惊雷 白博峰 |
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| 作者单位： | 1. 西南石油大学石油工程学院, 四川, 成都, 610500;2. 中国石油长庆油田分公司油气工艺技术研究院, 陕西, 西安, 710021;3. 西安石油大学陕西, 西安, 710065;4. 南京航空航天大学, 江苏, 南京, 210016;5. 西安交通大学动力工程多相流国家重点实验室, 陕西, 西安, 710049 |
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| 基金项目： | 国家自然科学基金;国家重点实验室基金 |
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| 摘 要： | 气井井筒跨音速气水分离技术主要基于超音速喷管与跨音速翼流动机理,通过喷管将流体加速,温度快速下降,致使饱和水凝结成液滴并从旋流天然气中分离出来.由于液滴在喷管冷凝时滞留时间仅有1ms左右,不易形成水合物,不需要加入水合物抑制剂等化学药品,可避免有害化学物的再生.将该技术用于气井井筒的结构设计,对天然气流经跨音速翼进行了数值模拟,获得了流体在流场中的流动规律.
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| 关 键 词： | 天然气井 跨音速 气水分离技术 旋流 排液 数值模拟 |
| 文章编号： | 0253-2697（2006）05-0119-05 |
| 收稿时间： | 2005-10-25 |
| 修稿时间： | 2006-02-27 |
Transonic gas-water separation and liquid drainage technology by swirling flow in gas wellbore |
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| Wang Junqi,Xu Yonggao,Xue Zhongtian,Xu Jinglei,Bai Bofeng.Transonic gas-water separation and liquid drainage technology by swirling flow in gas wellbore[J].Acta Petrolei Sinica,2006,27(5):119-123. |
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| Authors: | Wang Junqi Xu Yonggao Xue Zhongtian Xu Jinglei Bai Bofeng |
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| Affiliation: | 1. Petroleum Engineering Institute, Southwest Petroleum University, Chengdu 610500, China;2. Oil and Gas Technology Research Institute, PetroChina Changqing Oilfield Company, Xi'an 710021, China;3. Xi'an Shiyou University, Xi'an 710065, China;4. Nanjing University of Aeronautic and Astronautics, Nanjing 210016, China;5. State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China |
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| Abstract: | The transonic gas-water separation technology used in gas wellbore was mainly based on the flow mechanism of supersonic nozzle and transonic wing. The gas flow was accelerated to supersonic firstly by Laval nozzle and resulted in quick drop of gas temperature and condensation of saturated water from the gas flow. Then the droplet of water could be separated from the mixture flow with a signal transonic wing, because of the swirling flow. Since the droplets stayed in Laval nozzle for only milliseconds, it is too difficult to generate hydrate. Therefore, it is unnecessary to add any chemicals, such as hydrate inhibitor. The regeneration of harmful chemicals could be avoided completely. The principles of the technique and its application to gas wellbore was described in detail. Then a numerical simulation on gas flowing over the transonic wing was conducted. The fluid flowing status on flow field was determined. |
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| Keywords: | natural gas wells transonic gas-water separation technology swirling flow liquid drainage numerical simulation |
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