油气钻井技术在干热岩开发中的适应性分析

Analysis on the Adaptability of Oil and Gas Drilling Technologies in Development for Hot Dry Rocks

思娜 叶海超 牛新明 王磊 冯建赟 靳瑞环

SI Na YE Haichao NIU Xinming WANG Lei FENG Jianyun JIN Ruihuan

中国石化石油工程技术研究院，北京 100101 中国石化石油勘探开发研究院，北京 100083 中国石化中原石油勘探局培训中心，河南濮阳 457001

Sinopec Research Institute of Petroleum Engineering, Beijing, 100101, China Sinopec Exploration & Production Research Institute, Beijing, 100083, China Training Center, Sinopec Zhongyuan Petroleum Exploration Bureau, Puyang, Henan, 457001, China

干热岩地热资源潜力巨大，其开发技术主要依赖于油气钻井技术的移植。鉴于干热岩地热资源的特殊性，需要分析油气钻井技术在其开发中的适应性，以便进行改进，从而更快、更好、更经济地开发该资源。在分析干热岩地热资源地层分布特征及其与常规油气资源异同点的基础上，总结了干热岩地热资源开发对钻井工程方面的技术需求；结合当前油气资源开发在安全高效快速钻井、耐高温、高效破岩、高精度表征描述、低成本开发等方面的技术特点，分析了常规油气钻井技术在干热岩地热资源开发中的适应性，明确了可移植于干热岩地热资源开发的油气钻井技术，提出应重点研制耐高温井下工具和工作流体。研究表明，部分油气钻井技术可移植于干热岩地热资源开发，但是鉴于干热岩地热资源对钻井技术的特殊要求，还需要开展针对性的科技攻关。

There is a great potential for resource development in hot dry rocks. At this point, its development technologies mainly copy the oil and gas engineering technologies. However, hot dry rock resources possess their own unique characteristics which are different from regular temperature conditions of oil and gas reserovirs, and it is necessary to analyze the adaptability of oil and gas drilling engineering technologies in the development of hot dry rock resources. Thus, one can make appropriate improvements and realize faster, better and more economical development. By analyzing the stratigraphic distribution characteristics of hot dry rock geothermal resources and their similarities/differences with the conventional oil and gas resources, the technical demands of hot dry rock geothermal resources development on drilling engineering were summarized. Considering technical features of current oil and gas resources development, such as safe and efficient drilling, high temperature-resistance/high-efficiency rock breaking, high-precision characterization, low-cost development, the adaptability of conventional oil and gas drilling engineering technologies in the development of hot dry rock resources was analyzed, and the oil/gasdrilling new technologies that could be adopted for hot dry rock resources development were clarified. Moreover, this paper proposes new areas of emphasis in the development of high temperature-resistance downhole tools and working fluids. The research showed that some oil/gas drilling technologies could be successfully applied in the development of hot dry rock resources. However, further scientific and technological research is required in view of the unique demands of hot dry rock resources on drilling engineering technologies.

国家重点研发计划项目“干热岩能量获取及利用关键科学问题研究”子课题“干热岩能量获取方法与测井技术”（编号：2018YFB1501802）和中国石化科技攻关项目“干热岩地热能勘探开发关键技术研究”（编号：P17030-4）资助

https://doi.org/10.11911/syztjs.2019042