深水钻井井筒全瞬态传热特征

doi:10.7623/syxb201104022

石油学报 ›› 2011, Vol. 32 ›› Issue (4): 704-708.DOI: 10.7623/syxb201104022

深水钻井井筒全瞬态传热特征

宋洵成管志川

中国石油大学石油工程学院山东青岛 266555

收稿日期:2010-12-24 修回日期:2011-04-01 出版日期:2011-07-25 发布日期:2011-09-22
通讯作者: 宋洵成
作者简介:宋洵成，男，1972年12月生，2010年获中国石油大学(华东)博士学位，现为中国石油大学（华东）副教授，主要从事油气井流体力学与工程的教学和科研工作。
基金资助:
国家高技术研究发展计划(863)项目(2006AA09A106)资助。

Full transient analysis of heat transfer during drilling fluid circulation in deep-water wells

SONG Xuncheng GUAN Zhichuan

Received:2010-12-24 Revised:2011-04-01 Online:2011-07-25 Published:2011-09-22

摘要/Abstract

摘要：

深水钻井作业期间的井筒温度是深水钻井设计和安全钻井的重要基础数据。基于深水钻井液循环时井筒与地层和海水的传热机理，建立了全瞬态深水钻井液循环温度计算模型，模型与Holmes实验井实测温度吻合程度较高。利用一口深水模拟井数据，分析了水深、水温、隔水管保温层等因素对钻井液循环温度的影响。研究表明，深水井筒温度随井深变化幅度小，一般不超过30℃；水深相差500 m时，一般会使井底温度相差约5℃，但基本不影响钻井液出口温度；隔水管保温层对井筒温度影响大，而季节变化对深水钻井液的循环温度基本没有影响。

关键词: 深水钻井, 井筒温度, 传热, 钻井液, 全瞬态模型

Abstract:

Wellbore temperature is a significant parameter to well design and drilling safety during deep-water drilling operations. Based on heat transfer mechanisms among wellbore, formation and sea water during the drilling fluid circulation in deep-water drilling, we developed a full transient model for computing temperatures of circulating drilling fluids, which was verified effective by the remarkable consistency of computed temperatures with measured ones from a Holmes experimental well. In addition, effects of water depth, water temperature and riser insulating layers on temperatures of circulating drilling fluids were analyzed via a deep-water simulation well. The simulation indicated that the range ability of temperatures along the deep-water wellbore profile with depth was not great, normally less than 30℃. The difference of the bottom hole temperature would be commonly about 5℃ as water depth increased 500m more, however, it generally made little difference to the outlet temperature of drilling fluids. Riser insulating layers had a considerable effect on wellbore temperatures, while seasonal changes contributed little to wellbore temperatures of circulating drilling fluids.

Key words: deep-water drilling, wellbore temperature, heat transfer, drilling fluid, full transient model

宋洵成管志川. 深水钻井井筒全瞬态传热特征[J]. 石油学报, 2011, 32(4): 704-708.

SONG Xuncheng GUAN Zhichuan. Full transient analysis of heat transfer during drilling fluid circulation in deep-water wells[J]. Editorial office of ACTA PETROLEI SINICA, 2011, 32(4): 704-708.

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深水钻井井筒全瞬态传热特征

Full transient analysis of heat transfer during drilling fluid circulation in deep-water wells

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