连续油管钻水平井岩屑运移规律数值模拟

宋先知; 李根生; 王梦抒; 易灿; 苏新亮

doi:10.3969/j.issn.1001-0890.2014.02.006

连续油管钻水平井岩屑运移规律数值模拟

doi: 10.3969/j.issn.1001-0890.2014.02.006

中国石油大学（北京）石油工程学院,北京 102249

基金项目:

国家重点基础研究发展计划（“973”计划）项目“深井复杂地层安全高效钻井基础研究”（编号：2010CB226700）和中国石油大学（北京）科研“微小井眼钻井井眼净化能力研究”（编号：2462013BJRC002）、“水平井微小井眼钻井井眼延伸能力研究”（编号：YJRC-2013-04）资助。

详细信息

作者简介:
宋先知（1982—），男，黑龙江依安人，2004年毕业于石油大学（华东）石油工程专业，2010年获中国石油大学（北京）油气井工程专业博士学位，副教授，硕士生导师，主要从事油气井流体力学与工程方向的教学与科研工作。

中图分类号: TE21
计量
- 文章访问数: 2977
- HTML全文浏览量: 28
- PDF下载量: 3771
- 被引次数: 0
出版历程
- 收稿日期: 2013-10-08
- 修回日期: 2014-03-04
- 刊出日期: 1900-01-01

Numerical Simulation on Cuttings Carrying Regularity for Horizontal Wells Drilled with Coiled Tubing

College of Petroleum Engineering, China University of Petroleum(Beijing), Beijing, 102249, China

摘要

摘要: 连续油管钻水平井过程中，井底岩屑在重力作用下容易沉积在井壁下侧，形成岩屑床；连续油管又受到排量小、钻柱无法旋转等因素限制，造成井眼净化效率较低。针对这一问题，在欧拉坐标系下考虑相间滑移速度和颗粒流的影响，建立了微小井眼水平井岩屑运移的混合物漂移模型，采用Realize κ-ε湍流模式及SIMPLEC算法进行数值计算，研究了钻井液排量、环空偏心度、岩屑直径、井斜角和钻井液黏度等参数对偏心环空岩屑运移的影响，得到了各种条件下环空岩屑速度和浓度的分布规律。研究表明：随着钻井液排量增大、环空偏心度减小、岩屑直径减小、井斜角减小及钻井液黏度提高，连续油管水平井岩屑运移效率提高。
- 微小井眼 /
- 连续油管钻井 /
- 水平井 /
- 岩屑运移 /
- 数值模拟
Abstract: During the course of drilling horizontal well with coiled tubing,cuttings easily settle on the low side of borehole to form cuttings bed due to action of gravity.The features in the coiled tubing drilling,such as small pumping rate and no rotation in drill string etc,have made hole cleaning efficiency very low.In view of this problem,considering the interphase slip velocity and particle flow influence based on the Eulerian coordinate system,a mixture drift model of cuttings carrying in a horizontal slim-hole was established,which uses Realize κ-ε turbulence model and the SIMPLEC algorithm for numerical calculation, and studied the effects on eccentric annular cuttings migration by flow rate,annular eccentricity,cuttings size,mud viscosity and hole angle,to determine distribution pattern of cuttings velocity and concentration in annular space under all conditions.The study shows that cuttings carrying efficiency will increase in coiled tubing drilling horizontal wells with the change of several factors,i.e.the increase of flow rate of drilling fluid,the decrease of annular eccentricity,decrease of cuttings size and well inclination,and the increase of mud viscosity.
- slim-hole /
- coiled tubing drilling /
- horizontal well /
- cuttings transportation /
- numerical simulation

HTML全文

参考文献(11)

Loveland M J,Pedota J L.Case history:efficient coiled-tubing sand cleanout in a high-angle well using a complete integrated cleaning system[R].SPE 94179,2005.

Zhou W,Amaravadi S,Roedsjoe M.Valhall field coiled-tubing proppant cleanout process optimization[R].SPE 94131,2005.

李增强,邵宣涛,李希亮.油田冲砂清洁生产工艺的研究应用[J].油气田环境保护,2002,12(1):28-30. Li Zengqiang,Shao Xuantao,Li Xiliang.Research and application on clean production process of sand-washing in oilfield[J].Environmental Protection of Oil Gas Fields,2002,12(1):28-30.

Li J,Walker S.Sensitivity analysis of hole cleaning parameters in directional wells[J].SPE 54498,1999.

Engel S P,Rae P.New mothods for sand cleanout in deviated wellbores using small diameter coiled tubing[R].SPE 77204,2002.

Kelessidis V C,Bandelis G E.Flow patterns and minimum suspension velocity for efficient cuttings transport in horizontal and deviated wells in coiled-tubing drilling[J].SPE Drilling Completion,2004,19(4):213-227.

Ramadan A,Skalle P,Saasen A.Application of a three-layer modeling approach for solids transport in horizontal and inclined channels[J].Chemical Engineering Science,2005,60(10):2557-2570.

郭晓乐,汪志明,龙芝辉.大位移钻井全井段岩屑动态运移规律[J].中国石油大学学报:自然科学版,2011,35(1):72-76. Guo Xiaole,Wang Zhiming,Long Zhihui.Transient cuttings transport laws through all sections of extended reach well[J].Journal of China University of Petroleum,2011,35(1):72-76.

王治中,邓金根,孙福街,等.井筒砂粒运移规律室内模拟实验研究[J].石油学报, 2006,27(4):130-132,138. Wang Zhizhong,Deng Jingen,Sun Fujie,et al.Experimental study on sand grain migration in wellbore[J].Acta Petrolei Sinica,2006,27(4):30-132,138.

沈忠厚,王海柱,李根生.超临界CO2钻井水平井段携岩能力数值模拟[J].石油勘探与开发,2011,38(2):233-236. Shen Zhonghou,Wang Haizhu,Li Gensheng.Numerical simulation of the cutting-carrying ability of supercritical carbon dioxide drilling at horizontal section[J].Petroleum Exploration and Development,2011,38(2):233-236.

马东军,李根生,郭瑞昌,等.管内转向径向水平井携岩规律数值模拟[J].石油机械,2013,41(11):6-10. Ma Dongjun,Li Gensheng,Guo Ruichang,et al.Numerical simulation of the cuttings-carrying law in radical horizontal well[J].China Petroleum Machinery,2013,41(11):6-10.

施引文献

资源附件(0)

访问统计