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新疆油田浅层超稠油SAGD高效低碳开发技术研究与展望

  • 孙新革 ,
  • 罗池辉 ,
  • 张胜飞 ,
  • 张文胜 ,
  • 罗双涵
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  • 1.中国石油新疆油田分公司,新疆 克拉玛依 834000;
    2.中国石油勘探开发研究院,北京 100083
孙新革(1968—),男,企业首席专家,教授级高级工程师,《特种油气藏》期刊编委,1990年毕业于石油大学(华东)煤田、油气地质与勘探专业,2016年毕业于西南石油大学石油工程专业,获博士学位,现主要从事油气田开发研究工作。

收稿日期: 2022-08-02

  修回日期: 2023-12-23

  网络出版日期: 2024-04-18

基金资助

中国石油科技专项“蒸汽驱/SAGD中后期多介质注汽开发技术研究”(2021DJ1402)

Research and Prospects of Efficient and Low-carbon SAGD Development Technology for Shallow Ultra-Heavy Oil in Xinjiang Oilfield

  • Sun Xin′ge ,
  • Luo Chihui ,
  • Zhang Shengfei ,
  • Zhang Wensheng ,
  • Luo Shuanghan
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  • 1. PetroChina Xinjiang Oilfield Company, Karamay, Xinjiang 834000, China;
    2. Research Institnte of Petrolem Exploration & Development, Beijing 100083, China

Received date: 2022-08-02

  Revised date: 2023-12-23

  Online published: 2024-04-18

摘要

针对“双碳”目标背景下超稠油开发高能耗与油田高质量发展矛盾日益加剧的问题,新疆油田通过SAGD机理研究与现场实践,在维持蒸汽腔高效扩展,突破储层渗流屏障遮挡,提高浅薄层驱泄复合效率,实现水平井长水平段高效均衡产液等方面持续攻关,取得显著效果。采用气体辅助技术,实现蒸汽腔隔热保压增能,油汽比可提高20%;利用立体井网及储层升级扩容技术,改善Ⅲ类超稠油油藏渗流特征,泄油速度可增大20%~40%;采用全密闭生产方式,VHSD产液温度由100 ℃上升至150 ℃,采油速度提高50%;深化热采流量控制器(FCD)机理研究,完善油藏-井筒耦合优化设计方法,水平井水平段动用程度可提高20%。“十四五”期间,新疆油田将深化溶剂辅助SAGD、无水SAGD和控温水热裂解等技术研究,逐步完善浅层超稠油低碳高效开发技术系列,该研究可为稠油油藏开发提供借鉴。

本文引用格式

孙新革 , 罗池辉 , 张胜飞 , 张文胜 , 罗双涵 . 新疆油田浅层超稠油SAGD高效低碳开发技术研究与展望[J]. 特种油气藏, 2024 , 31(1) : 1 -8 . DOI: 10.3969/j.issn.1006-6535.2024.01.001

Abstract

In response to the increasing contradiction between high energy consumption for ultra-heavy oil development and high quality development of oilfield in the context of “carbon neutrality and emission peak” target, Xinjiang Oilfield, through mechanism research and field practice, has continued its research and achieved significant results in maintaining efficient expansion of steam chamber, breaking through reservoir seepage barrier blockage, improving the steam flooding and gravity drainage efficiency in shallow and thin layers, and achieving efficient and balanced fluid production in long horizontal sections of horizontal wells: the gas-assisted technology is employed to achieve the insulation, pressure retention and energy boosting of steam chambers, and the oil-to-steam ratio can be increased by up to 20%; the vertical well pattern and reservoir upgrading and expansion technologies are utilized to improve the seepage characteristics of Class Ⅲ ultra-heavy oil reservoirs, and the drainage rate can be increased by 20% to 40%; the fully confined production method is adopted, resulting in an increase in VHSD produced liquid temperature from 100 ℃ to 150 ℃ and a 50% increase in oil recovery rate; a further research on the mechanism of thermal recovery flow control device (FCD) is conducted, and the reservoir-wellbore coupling optimization design method is improved, so the production degree of the horizontal section of horizontal wells can be increased by 20%. During the “14th Five-Year Plan” period, Xinjiang Oilfield will conduct a further research of solvent-assisted SAGD, waterless SAGD and temperature-controlled hydrothermal fracturing technologies, and gradually improve the series of low-carbon and high-efficiency development technologies for shallow ultra-heavy oil. The research can provide technical guidance for the development of similar reservoirs.

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