松辽盆地北部地热资源分布特征及开发对策  

Distribution characteristics and development strategy of geothermal resources in northern Songliao Basin

作　　者：陈春瑞 李晶[1,2] 王峥 谷社峰[1,2] 李士平 CHEN Chunrui;LI Jing;WANG Zheng;GU Shefeng;LI Shiping(State Key Laboratory of Continental Shale Oil,Daqing 163712,China;Exploration and Development Research Institute of PetroChina Daqing Oilfield Co.,Ltd.,Daqing 163712,China)

机构地区：[1]多资源协同陆相页岩油绿色开采全国重点实验室,黑龙江大庆163712 [2]中国石油大庆油田有限责任公司勘探开发研究院,黑龙江大庆163712

出　　处：《大庆石油地质与开发》2024年第4期215-222,共8页Petroleum Geology & Oilfield Development in Daqing

基　　金：中国石油天然气集团有限公司重大科技专项“东部油区地热资源潜力评价”(2016A-4802(GF))。

摘　　要：松辽盆地是中国陆上面积最大、地温梯度最高的热盆,蕴藏丰富的地热资源。针对地热资源规模及有利区不落实,地热开发利用起步晚,相关核心关键技术、工程配套等不成熟,难以指导地热资源效益开发等问题,从地温梯度、岩石热导率及大地热流研究入手,重点剖析了松辽盆地北部地热资源赋存特征,依据其分布特征,探讨地热资源开发对策,建立配套开发和综合利用技术。结果表明:松辽盆地北部具有高温热盆特点;地热资源主要为水热型和岩热型2类,中浅层水热型砂岩地热水北好南差,滨北林甸、黑鱼泡等地水层厚度高达200 m,孔隙度普遍大于20%,是最有利的地热水发育区;深层岩热型地热资源厚度大、温度高,资源规模大,是油区生产用能替代的主要资源;分类型建设地热开发试验区,攻关地热开发技术瓶颈,加大对地热供暖项目的政策支持,促进地热技术研发,为地热能效益开发提供保障。研究成果为松辽盆地北部地热资源先导试验区优选及开发方案设计提供了理论依据。Songliao Basin is the largest onshore hot basin in China with maximum geothermal gradient and abundant geothermal resources.The problems of undetermined geothermal resources scale and favorable areas,late start of geothermal development and utilization,and immature related core key technologies and supporting engineerings cause difficulty to guide efficient development of geothermal resources.Occurrence characteristics of geothermal resources in northern Songliao Basin are emphatically analyzed based on study of geothermal gradient,rock thermal conductivity and heat flow.Development strategy for geothermal resources are discussed and supporting development and comprehensive utilization techniques are established based on its distribution characteristics.The results show that northern Songliao Basin has characteristics of high-temperature hot basin.Geothermal resources are mainly divided into 2 types,namely hydrothermal and rock thermal.Sandstone geothermal water of middle-shallow hydrothermal layers is well-developed in the north and poor-developed in the south.Water layer thickness in Lindian and Heiyupao zones of Binbei area is up to 200 m,with porosity generally exceeding 20%,being the most favorable areas for geothermal water development.Deep rock thermal geothermal resources have large thickness,high temperature and large resource scale,serving as the main substitute resource for oil production area.Development strategy is proposed including constructing geothermal development test zones by types,tackling the bottleneck of geothermal development techniques,increasing policy support for geothermal heating projects and promoting research and development of geothermal techniques,so as to provide security for efficient development of terrain energy.The research provides theoretical basis for optimization and development planning of pilot test area in northern Songliao Basin.

关 键 词：地热 地温场 地热资源类型 水热型 岩热型 开发对策 松辽盆地北部 

分 类 号：P314[天文地球—固体地球物理学]