天然气斜井携液临界流量预测方法

doi:10.11743/ogg20120422

石油与天然气地质 ›› 2012, Vol. 33 ›› Issue (4): 650-654.doi: 10.11743/ogg20120422

天然气斜井携液临界流量预测方法

李丽¹, 张磊², 杨波³, 殷茵¹, 李登伟¹

1. 中国石化国际石油勘探开发有限公司, 北京 100029;
2. 中国石油西南油气田分公司华油公司, 四川成都 610017;
3. 中国石油新疆油田分公司陆梁油田作业区, 新疆克拉玛依 834000

收稿日期:2011-05-16 修回日期:2012-03-20 出版日期:2012-08-28 发布日期:2012-09-11
作者简介:李丽(1981-),女,工程师,油气田开发工程。

Prediction method of critical liquid-carrying flow rate for directional gas wells

Li Li¹, Zhang Lei², Yang Bo³, Yin Yin¹, Li Dengwei¹

1. SINOPEC International Petroleum Exploration and Production Corporation, Beijing 100029, China;
2. Huayou Company, PetroChina Southwest Oilfield Company, Chengdu, Sichuan 610017, China;
3. Luliang Oilfield, PetroChina Xinjiang Oilfield Company, Karamay, Xinjiang 834000, China

Received:2011-05-16 Revised:2012-03-20 Online:2012-08-28 Published:2012-09-11

摘要/Abstract

摘要：

目前,广泛应用的天然气井携液临界流量计算模型是建立在直井基础之上的,没有考虑井斜角对携液的影响。但是,随着定向井和水平井的日益增多,现有直井计算模型已经不能准确预测斜井的携液临界流量。为解决这个问题,以Turner计算模型为研究基础,同时考虑井斜角的影响,根据球形液滴的受力条件,认为其在斜井井筒运动过程中不会一直沿井筒中心线上升,而是慢慢运移至油管壁,最终沿管壁向上方滑动。依据牛顿摩擦定律,计算出管壁对液滴的摩擦力,重新建立液滴受力模型,提出了斜井携液临界流量预测模型。最后,在Turner模型的基础上,推导出了修正系数表,认为修正系数与摩擦系数和井斜角有关。通过现场实例应用,计算结果表明该计算方法具有较高的精度。

关键词: 携液, 临界流量, 修正系数, 斜井, 天然气开发

Abstract:

Current popular models for calculating critical liquid-carrying flow rate for directional gas wells are established based on vertical wells without considering the influences of deviation angle on liquid-carrying.Now more and more directional wells and horizontal wells are deployed in coal-bed methane recovery,but the current vertical well-based models cannot accurately predict the critical liquid-carrying flow rate of these wells.To solve this problem,we performed study based on Turner calculation model with impacts of deviation angle integrated.Analysis of the force balance of spherical droplets reveals that the liquid drops do not always rise up along the central line but fall off slowly on the tubing wall and finally glide up along the tubing.According to Newton’s friction law,we calculated the friction force between the tubing wall and liquid drop,and rebuild a new model to predict critical liquid-carrying flow rate for directional gas wells.Finally,on the basis of the Turner model,we derived correction factors which are related to the friction coefficients and the deviation angles.The practical application shows that this calculation method has higher precision.

Key words: liquid-carrying, critical flow rate, correction coefficient, directional well, natural gas development

中图分类号:

TE357.4

李丽,张磊,杨波,等. 天然气斜井携液临界流量预测方法[J]. 石油与天然气地质, 2012, 33(4): 650-654. doi: 10.11743/ogg20120422 Li Li,Zhang Lei,Yang Bo,et al. Prediction method of critical liquid-carrying flow rate for directional gas wells[J]. Oil & Gas Geology, 2012, 33(4): 650-654. doi: 10.11743/ogg20120422

参考文献

[1] 陈志海,任利军,陈亮宇,等.复杂断块超低渗油气藏试采动态评价与开发对策——以松辽盆地南部十屋油田营城组及沙河子组一段油藏为例[J].石油与天然气地质,2011,32(1):133-141. Chen Zhihai,Ren Lijun,Chen Liangyu,et al.Performance eva- luation on production tests in the extra low permeability rese- rvoirs of complex fault blocks and development strategies-examples from oil reservoirs in the Yingcheng Formation and the first member of the Shahezi Formation in Shiwu oilfield of the southern Songliao Basin[J].Oil & Gas Geology,2011,32(1):133-141.
[2] 王海更,田晓平,崔云江,等.渤海油田河流相油气藏关键储量参数确定方法[J].石油与天然气地质,2011,32(2):287-292. Wang Haigeng,Tian Xiaoping,Cui Yunjiang,et al.Calculation of key reserve parameters of fluvial reservoirs in Bohai oilfiled[J].Oil & Gas Geology,2009,30(2):287-292.
[3] 王卫红,刘传喜,穆林,等.高含硫碳酸盐岩气藏开发技术政策优化[J].石油与天然气地质,2011,32 (2):302-310. Wang Weihong,Liu Chuanxi,Mu Lin.Technical policy optimization for the development of carbonate sour gas reservoirs[J].Oil & Gas Geology,2009,30(2):302-310.
[4] 王洪江,吴聿元.松辽盆地长岭断陷火山岩天然气藏分布规律与控制因素[J].石油与天然气地质,2011,31(3):360-367. Wang Hongjiang,Wu Yuyuan.Distribution patterns and controlling factors of volcanic gas pools in the Changling fault depression,the Songliao Basin[J].Oil & Gas Geology,2011,31(3):360-367.
[5] 向耀权,辛松,何信海,等.气井临界携液流量计算模型的方法综述[J].中国石油和化工,2009:55-58. Xiang Yaoquan,Xin Song,He Xinhai,et al.The summary of critical liquid carrying flow rate methods[J].China Petroleum and Chemical Industry,2009:55-58.
[6] 杨文明,王明,陈亮,等.定向气井连续携液临界产量预测模型[J].天然气工业,2009,29(5):82-84. Yang Wenming,Wang Ming,Chen Liang,et al.A prediction model on calculation of continuous liquid carrying critical production of directional gas wells[J].Natural Gas Industry,2009,29(5):82-84.
[7] 管虹翔,于继飞.大斜度气井临界携液产量预测新方法[J].中国海上油气,2011,23(1):50-52. Guan Hongxiang,Yu Jifei.A new method of the critical liquid carrying flow rate for highly deviated gas well [J].China Offshore Oil and Gas,2011,23(1):50-52.
[8] 刘广峰,何顺利,顾岱鸿.气井连续携液临界产量的计算方法[J].天然气工业,2006,10:114-116. Liu Guangfeng,He Shunli,Gu Daihong.New model of the critical liquid carrying flow rate for gas wells[J].Natural Gas Industry,2006,10:114-116.
[9] 魏纳,孟英峰,李悦钦,等.井筒连续携液规律研究[J].钻采工艺,2008,11:88-90. Wei Na,Meng Yingfeng,Li Yueqin,et al.Research on liquids continuous removal laws in gaswell[J].Drlling and Production Technology,2008,11:88-90.
[10] 姚玉英.化工原理[M].天津:天津大学出版社,1999:49-60. Yao Yuying.Chemical Engineering Principles[M].TianJin:Tianjin University Press,1999.49-60.
[11] 李闽,郭平,谭广天.气井携液新观点[J].石油勘探与开发,2001,28(5):105-106. Li Min,Guo Ping,Tan Guangtian.New look on removing liquids from gas wells[J].Petroleum Exploration and Development,2001,28(5):105-106.
[12] 李士伦.天然气工程[M].北京:石油工业出版社,2000:253-263. Li Shilun.Natural Gas Engineering[M].BeiJing:Petroleum Industry Press,2000.253-263.
[13] 王毅忠,刘庆文.计算气井最小携液临界流量的新方法[J].大庆石油地质与开发,2007,26(6):82-84. Wang Yizhong,Liu Qingwen.A new method to calculate the minimum critical liquids carrying flow rate for gas wells[J].Petroleum Geology & Oilfield Development in Daqing,2007,26(6):82-84.
[14] 康成瑞,徐斌,李兴.天然气井井筒积液预测方法解析[J].新疆石油天然气,2009,5(2):74-76. Kang Chengrui,Xu Bin,Li Xing.Analysis of pridiction method of gas wells liquid loading[J].Xinjiang Oil & Gas,2009,5(2):74-76.
[15] 陈家琅.石油气液两相管流[M].北京:石油工业出版社,1989. Chen Jialang.Two phase pipe flow of petroleum gas-liquid[M].BeiJing:Petroleum Industry Press,1989.

天然气斜井携液临界流量预测方法

Prediction method of critical liquid-carrying flow rate for directional gas wells

PDF (PC)

可视化

被引次数

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 1

编辑推荐

Metrics