岩性油气藏 ›› 2024, Vol. 36 ›› Issue (2): 23–32.doi: 10.12108/yxyqc.20240203

• 新能源与伴生资源 • 上一篇    下一篇

中国油田地热开发利用现状与发展方向

社教1, 施亦做2, 方朝合1, 曹倩2, 任路3   

  1. 1. 中石油深圳新能源研究院有限公司, 广东 深圳 518052;
    2. 中国石油勘探开发研究院, 北京 100083;
    3. 中国石油冀东油田勘探开发研究院, 河北 唐山 063004
  • 收稿日期:2023-08-25 修回日期:2023-09-15 出版日期:2024-03-01 发布日期:2024-03-06
  • 作者简介:王社教(1965—),男,博士,教授级高级工程师,主要从事地热、新能源、非常规油气和战略规划等方面的研究工作。地址: (518052)深圳市南山区南山街道南山大道1110号中国石油大厦。Email:wsj@petrochina.com.cn。
  • 基金资助:
    中国石油“十四五”重大科技攻关项目“地热资源高效勘探开发与综合利用关键核心技术开发及示范应用”(编号:2021DJ5501)资助。

Status and development trends of geothermal development and utilization in oilfields of China

WANG Shejiao1, SHI Yizuo2, FANG Chaohe1, CAO Qian2, REN Lu3   

  1. 1. PetroChina Shenzhen New Energy Research Institute Co., Ltd., Shenzhen 518052, Guangdong, China;
    2. PetroChina Research Institute of Petroleum Exploration and Development, Beijing 100083, China;
    3. Research Institute of Exploration and Developmen, PetroChina Jidong Oilfield Company, Tangshan 063004, Hebei, China
  • Received:2023-08-25 Revised:2023-09-15 Online:2024-03-01 Published:2024-03-06

摘要: 基于中国地热发展现状、地热资源赋存和分布特点、不同地热开发方式对比,分析了油田地热资源开发利用潜力,并探讨了中国地热产业,尤其是油田地热未来的发展方向。研究结果表明:①中国的地热资源较为丰富,以中低温地热资源为主。浅层地热资源分布全国;中低温地热资源分布于沉积盆地、东南沿海和隆起山区,在不同深度形成了大面积分布的含地热水的热储层,为水热型地热资源;高温地热资源集中分布在西藏南部、四川西部、云南西部和台湾地区。中国浅层地热能资源(浅于200m)年可开采量折合7×108t标准煤。②由于浅层地热能开发利用的环境与效率问题、深井直接换热的效率问题,以及干热岩开发利用的技术瓶颈问题,中深层水热型地热资源将是当今中国地热资源开发利用最主要和最现实的领域。③油田地热开发中形成了地热资源勘查与评价、砂岩地层回灌、废弃井改造为地热井、高温钻完井等一批关键技术,均在大型地热开发项目中得到成功应用。油田拥有丰富的采出水资源,可以直接利用,大量的废弃井或低效油井可以通过工艺改造为地热井进行地热资源开发,从而降低地热开发成本,提高地热项目的经济性。④油田地热除用于油田生产用能替代和清洁供暖外,中低温地热发电、氦气等伴生资源的开发、废弃油气藏储热和CO2封存等领域的发展潜力巨大,地热综合开发利用是油田地热未来发展的主要方向。

关键词: 油田地热, 水热型地热资源, 地热供暖, 地热发电, 废弃油气藏储热, CO2封存

Abstract: Based on the current situation of geothermal development in China,the characteristics of geothermal resource occurrence and distribution,and the comparison of different geothermal development methods,the potential for the development and utilization of geothermal resources in oilfields was analyzed,and the develop‐ment trends of China’s geothermal industry,especially oilfield geothermal,were discussed. The results show that:(1)China has abundant geothermal resources,mainly consisting of medium to low temperature geothermal resources. Shallow geothermal resources are distributed nationwide. Medium to low temperature geothermal resources are distributed in sedimentary basins,southeastern coastal areas,and uplift mountainous areas,forming a large area of thermal reservoirs containing geothermal water at different depths,which are hydrothermal geothermal resources. High temperature geothermal resources are concentrated in southern Xizang,western Sichuan,western Yunnan and Taiwan. China’s shallow geothermal energy resources(shallower than 200 m) have an annual mining output of 7×108 tons of standard coal.(2)Due to the environmental and efficiency issues in the development and utilization of shallow geothermal energy,the efficiency issues of direct heat exchange in deep wells,and the technical bottlenecks in the development and utilization of dry hot rocks,medium to deep hydrothermal geothermal resources will be the most important and practical field for the development and utilization of geothermal resources in China today.(3)A series of key technologies have been developed in the geothermal development of oilfields,including geothermal resource exploration and evaluation,sandstone formation reinjection,renovation of abandoned wells into geothermal wells,and high-temperature drilling and completion, all of which have been successfully applied in large-scale geothermal development projects. Oilfields have abundant produced water resources that can be directly utilized,and a large number of abandoned or inefficient oil wells can be transformed into geothermal wells through technological transformation for geothermal resource development,thereby reducing geothermal development costs and improving the economic efficiency of geothermal projects.(4)In addition to being used for energy consumption replacement and clean heating in oilfields, oilfield geothermal energy has great potential for development in the fields of medium-low temperature geothermal power generation,the production of associated resources such as helium,heat storage in depleted hydrocarbon reservoirs,and carbon dioxide sequestration. The comprehensive development and utilization of geothermal energy is the main direction for the future development of geothermal energy in oilfields.

Key words: oilfield geothermal energy, geothermal resource of hydrothermal type, geothermal heating, geothermal power generation, heat storage in depleted hydrocarbon reservoirs, carbon dioxide sequestration

中图分类号: 

  • TE09
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