收稿日期: 2015-02-05
修回日期: 2015-04-23
网络出版日期: 2015-11-10
基金资助
中海油能源发展股份有限公司项目“涡流工具携液影响因素分析”（编号：GC2014ZC2916）资助.
An Experimental Study on the Effect of the Vortex Tool and Its Influence on Critical Velocity
Received date: 2015-02-05
Revised date: 2015-04-23
Online published: 2015-11-10
针对目前涡流工具排水采气工艺设计理论缺乏、现场应用主要凭经验等问题，基于相似理论，建立了气井生产模拟实验装置，实验研究了涡流工具的作用机理，评价了其应用效果，分析了气井井筒中加装涡流工具后对井筒内流体的流型、气体携液量、井筒内压降以及临界携液流量的影响。实验表明，气井井筒加装涡流工具后能够有效提高气井的携液能力，相同气量下平均提高携液量23%，平均降低井筒内流体压降18%，降低临界携液流量20%；通过涡流工具携液机理分析，并与实验结果进行对比验证，提出能够有效应用于涡流工具生产过程的临界携液流量计算公式，为涡流工具有效解决气井积液提供技术支持。
陈德春，韩昊，姚亚，付刚，宋天骄，田淑芳 . 气井涡流工具作用效果分析与临界携液流量实验研究[J]. 天然气地球科学, 2015 , 26(11) : 2137 -2141 . DOI: 10.11764/j.issn.1672-1926.2015.11.2137
To solve the problem of the experience and theory support for vortex tool′s application in gas fields,an experiment was carried out to examine the influence of the tool on flow regime,liquid loading,pressure drop and critical velocity along the wellbore and to acquire the mechanism of the vortex tool by the equipment which was built to stimulate the gas production.Experiments show that the tool can effectively increase 23% lifted liquid with the same gas rate,decrease 18% pressure drop within the wellbore and decrease 20% critical gas rate.According to the mechanism analysis of the tool,a calculating model was quoted to estimate the critical velocity with vortex tool and validated by the experiment.The study provides a technical support for the use of the tool in field and guides production.
[1]Hu Junkun,Li Xiaoping,Song Daishiyu.A new method for dynamic reserves evaluation of water-drive gas reservoir[J].Natural Gas Geoscience,2013,24(3):628-632.[胡俊坤,李晓平,宋代诗雨.水驱气藏动态储量计算新方法[J].天然气地球科学,2013,24(3):628-632.]
[2]Zhang Chun,Jin Daquan,Wang Jin,et al.Drainage gas recovery by downhole eddy current used for Sulige Gasfield[J].Natural Gas Technology and Economy,2012,6(5):45-46.[张春,金大权,王晋,等.苏里格气田井下涡流排水采气工艺研究[J].天然气技术与经济,2012,6(5):45-46.]
[3]Zhu Qing,Zhang Junjie,Xie Fei,et al.Application of eddy drainage gas recovery to gasfields in Sichuan Basin[J].Natural Gas Technology and Economy,2013,7(1):53-55.[朱庆,张俊杰,谢飞,等.涡流排水采气技术在四川气田的应用[J].天然气技术与经济,2013,7(1):53-55.]
[4]Liu Jie,Liao Ruiquan,Zhao Shengxiao.Quantitative analysis of the capability of liquid removing from different productivity gas wells[J].Natural Gas Industry,2011,31(1):62-64.[刘捷,廖锐全,赵生孝.不同产能气井携液能力的定量分析[J].天然气工业,2011,31(1):62-64.]
[5]Alamu M B.Gas-well liquid loading probed with advanced instrumentation[J].SPE Journal,2012,17(1):251-270.
[6]Yu Gang,Du Jingwei,Zou Xiaoyan,et al.Tubing string optimazation study of Huabei gas storage[J].Natural Gas Geoscience,2013,24(5):1086-1090.[于刚,杜京蔚,邹晓燕,等.华北储气库注采气井管柱优选研究[J].天然气地球科学,2013,24(5):1086-1090.]
[7]Turner R G,Hubbard M G,Dukler A E.Analysis and prediction of minimum flow rate for the continuous removal of liquids from gas wells[J].Journal of Petroleum Technology,1969,21(11):1475-1482.
[8]Coleman S,Clay H,McCurdy D,et al.A new look at predicting gas-well load-up[J].Journal of Petroleum Technology,1991,43(3):329-333.
[9]Li Min,Guo Pin,Tan Guangtian.New look on removing liquids from gas well[J].Petroleum Exploration and Development,2001,28(5):105-106.[李闽,郭平,谭光天.气井携液新观点[J].石油勘探与开发,2001,28(5):105-106.]
[10]Lin Zonghu.Gas-liquid Two-phase Flow and Boiling Heat Transfer[M].Xi′an:Xi′an Jiaotong University Press,2003:48-54.[林宗虎.气液两相流和沸腾传热[M].西安:西安交通大学出版社,2003:48-54.]
[11]Richter H J.Flooding in tubes and annuli [J].International Journal of Multiphase Flow,1981,7(6):647-658.
/
| 〈 |
|
〉 |
甘公网安备 62010202000678号