[1]张锐铎,段永刚,蔡珺君.一种预测水平井井筒温度剖面的新方法[J].复杂油气藏,2017,(03):39.[doi:10.16181/j.cnki.fzyqc.2017.03.008]
　Zhang Ruiduo,Duan Yonggang,Cai Junjun.A new approach for predicting borehole temperature profile of horizontal wells[J].Complex Hydrocarbon Reservoirs,2017,(03):39.[doi:10.16181/j.cnki.fzyqc.2017.03.008]
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一种预测水平井井筒温度剖面的新方法
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《复杂油气藏》[ISSN:1674-4667/CN:31-2019/TQ]

卷:
期数:
2017年03期
页码:
39
栏目:
油气开发
出版日期:
2017-09-25

文章信息/Info

Title:
A new approach for predicting borehole temperature profile of horizontal wells
作者:
张锐铎; 段永刚; 蔡珺君
西南石油大学石油与天然气工程学院,四川 成都 610500
Author(s):
Zhang Ruiduo; Duan Yonggang; Cai Junjun
Petroleum and Natural Gas Engineering Institute of Southwest Petroleum University, Chengdu 610500, China
关键词:
水平井 DTS 井筒热模型 温度剖面 耦合模型
Keywords:
horizontal well;  DTS;  well thermal model;  temperature profile;  coupling model
分类号:
TE331.1
DOI:
10.16181/j.cnki.fzyqc.2017.03.008
文献标志码:
A
摘要:
通过解释分布式光纤温度传感器(DTS)实时测量的温度和压力数据可以实现井底流动情况的真实还原,水平井井筒温度预测模型是解释测试资料的基础。从油藏渗流规律和井筒流动机理出发,以流体物质平衡方程、动量守恒以及能量守恒为基础,以均质油藏中心的一口水平井为研究对象,建立耦合油藏和井筒模型的水平井热模型,随之迭代求解出特定条件下水平井井筒的温度和压力剖面,在模型求解的基础上分析了产油下水平井井筒温度的敏感性因素。研究结果表明:不同流量、不同渗透率以及不同类型流体对油藏温度分布均有明显影响。对于产单相油的水平井,井筒
Abstract:
Distributed temperature sensing(DTS)can supply the real time, continuous and accurate temperature and pressure data for horizontal wells. So it is possible to actually restore downhole flowing status through interpretation of the real time temperature and pressure data measured by DTS. According to reservoir percolation law and wellbore flow mechanism, on the basis of material balance equation, momentum balance equation, and energy balance equation, taking a horizontal well in the center of homogeneity reservoir as the research object, it was established a thermal model of horizontal well coupled the model of reservoir and well. And then the temperature and pressure profiles of wellbore under specific condition were resolved by iterative calculation. On this basis, sensitivity factors of wellbore temperature were analyzed under the conditions of oil production. The results showed that flow rate, permeability and types of fluid have obvious effect on the temperature distribution of reservoir. For horizontal well under condition of pure-oil production, the inflow temperature profile of wellbore is associated with the flow profile and the skin factor. The greater the oil production or the skin factor is, the greater the pressure change in the near wellbore zone is. Thus the wellbore temperature rising is caused by the Joule-Thomson effect.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2017-02-28; 改回日期:2017-05-04。 作者简介:张锐铎(1991—),硕士研究生,主要从事油气渗流理论及油气藏工程研究。E-mail:zhangruiduoswpu@163.com。 科研项目:国家重大科技专项(2011zx05026-001-07)。
更新日期/Last Update: 2017-09-25