地质工程一体化对我国海域天然气水合物效益勘探开发的启示  

Implication of geology-engineering integration for the beneficial exploration and exploitation of natural gas hydrate in the sea area of China

作　　者：钟超 陆敬安[1,2,3] 康冬菊 肖波 ZHONG Chao;LU Jing’an;KANG Dongju;XIAO Bo(Guangzhou Marine Geological Survey,China Geological Survey,Guangzhou 510075,Guangdong,China;Gas Hydrate Engineering Technology Center,China Geological Survey,Guangzhou 510075,Guangdong,China;National Engineering Research Center of Gas Hydrate Exploration and Development,Guangzhou 510075,Guangdong,China)

机构地区：[1]中国地质调查局广州海洋地质调查局,广东广州511458 [2]中国地质调查局天然气水合物工程技术中心,广东广州511458 [3]天然气水合物勘查开发国家工程研究中心,广东广州511458

出　　处：《矿产与地质》2024年第3期371-380,共10页Mineral Resources and Geology

基　　金：广东省重点领域研发计划项目(项目编号:2020B1111030003);广州海洋地质调查局局长科研基金项目(项目编号:2023GMGSJZJJ00021)和自然资源部中国地质调查局地质调查项目(项目编号:DD20221700,DD20230063)共同资助。

摘　　要：海域天然气水合物储层具有埋藏浅、弱胶结、未成岩等特点,降压开采过程可能会导致工程地质风险的加大,严重影响开采效率。因此,权衡产能需求与工程地质风险对于延长开采周期、保障开采安全尤为重要,有必要通过地质工程一体化技术探索出一条提高海域天然气水合物勘探开发效果、有效降低工程作业成本的新途径。文章介绍了地质工程一体化的发展历程,剖析国内外典型地质工程一体化应用实例,围绕海洋天然气水合物开发面临的挑战和科学问题,结合我国天然气水合物开发技术发展现状,对构建天然气水合物高效开采技术和经济技术评价体系(多井综合评价技术、产气潜力评价技术、靶点垂深预测技术)提出建议,基于“地质数据集成—研究平台—决策中心”架构,阐述海域天然气水合物地质工程一体化平台化建设思路,为未来我国海域天然气水合物效益勘探开发提供技术支撑。The natural gas hydrate reservoirs in the sea area are characterized by shallow burial condition,weak consolidation and lack of diagenesis,etc.The depressurized mining process might increase the engineering geological risk and seriously affect the mining efficiency.Therefore,it is particularly important to balance the production capacity demand and geological engineering risk to extend the mining cycle and ensure mining safety.It is necessary to explore for a new way to improve the exploration and development effect of natural gas hydrate in the sea area and to reduce the engineering operation cost through geology-engineering integration technology effectively.In this paper,the development history of geology-engineering integration is reviewed,and the typical application examples of geology-engineering integration at our country and abroad are analyzed.Based on the challenges and scientific problems faced by the development of marine gas hydrate,the suggestion is proposed on technology roadmap of high production of natural gas hydrate,multi-well comprehensive evaluation technology of natural gas hydrate,evaluation technology of gas production potential of natural gas hydrate and vertical prediction technology of 3D geological model target.Based on the establishment of"geological data integration research platform decision center",the idea of integrated platform construction for marine natural gas hydrate geological engineering is elaborated on,it can provide the technical support for the beneficial exploration and development of natural gas hydrate at the sea area of China in the future.

关 键 词：海域天然气水合物 开采潜力 地质工程一体化 效益开发 技术路线 

分 类 号：P618.13[天文地球—矿床学]