特种油气藏 ›› 2024, Vol. 31 ›› Issue (1): 144-151.DOI: 10.3969/j.issn.1006-6535.2024.01.019

• 钻采工程 • 上一篇    下一篇

稠油井内衬保温油管热损失分析及开采参数优化

曾文广1, 王熙2, 李芳1, 张江江1, 曾德智2   

  1. 1.中国石化西北油田分公司,新疆 乌鲁木齐 830001;
    2.西南石油大学油气藏地质及开发工程全国重点实验室,四川 成都 610500
  • 收稿日期:2022-12-11 修回日期:2023-12-10 出版日期:2024-02-25 发布日期:2024-04-18
  • 通讯作者: 曾德智(1980—),男,教授,2002年毕业于西南石油学院机械设计制造及其自动化专业,2007年毕业于西南石油大学油气井工程专业,获博士学位,现从事油气田腐蚀与防护、石油工程和井筒完整性及安全方面的研究工作。
  • 作者简介:曾文广(1978—),男,高级工程师,2002年毕业于西南石油学院石油工程专业,2005年毕业于西南石油大学油气井工程专业,获硕士学位,现主要从事油气田工程技术及现场应用方面的工作。
  • 基金资助:
    国家自然科学基金“静载、振动与腐蚀作用下H2S/CO2气井完井管柱螺纹密封面的力化学损伤机制研究”(51774249);四川省科技计划项目“页岩气水平井大规模加砂压裂井筒固液两相流动模拟及冲蚀规律研究(21JCQN0066)

Analysis of Heat Loss of Lined Insulation Tubing in Heavy Oil Wells and Optimization of Recovery Parameters

Zeng Wenguang1, Wang Xi2, Li Fang1, Zhang Jiangjiang1, Zeng Dezhi2   

  1. 1. Sinopec Northwest Oilfield Company, Urumqi, Xinjiang 830001, China;
    2. National Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan 610500, China
  • Received:2022-12-11 Revised:2023-12-10 Online:2024-02-25 Published:2024-04-18

摘要: 针对塔河油田稠油开采过程中原油热量损失大、资源浪费的问题,开展内衬保温油管开采技术研究。基于井筒稳态热传递与地层非稳态热传递理论,建立了稠油井井筒热传递数学模型,评价了不同内衬材料油管的保温性能,揭示了含水率、日产液量及内衬保温油管下深对井筒温度的影响规律。研究表明:内衬聚酮防腐层与气凝胶保温层的保温油管保温性能最佳,日产液量和保温油管下深对井口温度影响较大,含水率对井口温度的影响较小;日产液量大于72 t/d且保温油管下深大于3 500 m时,可满足稠油开采的温度要求。该研究明确了内衬保温油管保温的可行性,可为油田保温油管内衬的选材、稠油开采工艺参数的制订提供技术依据。

关键词: 稠油, 热损失, 内衬保温油管, 温度场, 聚酮防腐层, 气凝胶保温层

Abstract: The lined insulation tubing recovery technology was researched to address the problems of large heat loss of heavy oil and waste of resources during the heavy oil recovery process in Taha Oilfield. Based on the theory of steady state heat transfer in the wellbore and non-steady state heat transfer in formation, a mathematical model of heat transfer in the wellbore of heavy oil wells was established, and the heat preservation performance of tubings with different lining materials was evaluated, which reveals the influence of water cut, daily liquid production and depth of tubing insulated with heat preservation tubular on the temperature of the wellbore. The study shows that the tubing insulated with polyketone anticorrosion layer and aerogel insulation layer has the best thermal insulation performance, the daily fluid production and the depth of insulation tubing have a more significant impact on the wellhead temperature, and the water cut has a lesser effect on the wellhead temperature; when the daily fluid production is more than 72 t/d and the depth of insulated tubing is more than3 500 m, which satisfies the temperature requirements of heavy oil recovery. The study results clarify the feasibility of lined insulation tubing, which could provide a technical basis for the selection of lined insulation tubing in oilfield and the formulation of process parameters for heavy oil recovery.

Key words: heavy oil, heat loss, lined insulation tubing, temperature field, polyketone anticorrosion layer, aerogel insulation layer

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