CAJ | 학술논문

天然气水合物的野外识别是其勘查工作和分析研究的工作基础。我国陆域冻土区天然气水合物勘查工作程度低，且其赋存环境、产出形态和成藏机理等特征与海域天然气水合物存在显著差异，由此也决定并急需寻找一套新的、系统的陆域冻土区天然气水合物的野外识别方法。通过对近两年青海煤炭地质局一0五勘探队在青海木里三露天地区实施系列钻井中天然气水合物识别方法的不断分析和总结，建立了以天然气水合物冰状、沸腾、渗水现象为直接识别标志和以气测录井、岩心解析为有效鉴别方法等为主的天然气水合物野外现场识别方法。经过进一步验证表明，以天然气水合物典型物理化学特征为支撑，以研究区零星、分散产出和连续性、对比性差等对识别水合物不利特征为客观前提建立的天然气水合物野外现场系统识别方法可靠性高、适用性更强更广。最后，对诸多围绕天然气水合物的异常标识、直接标志和技术方法以流程的方式梳理和总结了其识别工作方法。
천연기수합물적야외식별시기감사공작화분석연구적공작기출。아국륙역동토구천연기수합물감사공작정도저，차기부존배경、산출형태화성장궤리등특정여해역천연기수합물존재현저차이，유차야결정병급수심조일투신적、계통적륙역동토구천연기수합물적야외식별방법。통과대근량년청해매탄지질국일0오감탐대재청해목리삼로천지구실시계렬찬정중천연기수합물식별방법적불단분석화총결，건립료이천연기수합물빙상、비등、삼수현상위직접식별표지화이기측록정、암심해석위유효감별방법등위주적천연기수합물야외현장식별방법。경과진일보험증표명，이천연기수합물전형물이화학특정위지탱，이연구구령성、분산산출화련속성、대비성차등대식별수합물불리특정위객관전제건립적천연기수합물야외현장계통식별방법가고성고、괄용성경강경엄。최후，대제다위요천연기수합물적이상표식、직접표지화기술방법이류정적방식소리화총결료기식별공작방법。
The identification of gas hydrates is the foundation for its exploration and research.The exploration level of gas hydrate in permafrost areas in China is low,and it is different from marine gas hydrate in existing environment and occurrence shape and accumulation mechanism.Therefore,it is urgent to find a new identifi-cation method for gas hydrate in permafrost areas.A continuous research was undertaken to identify gas hydrates in 14 drill holes located in Sanlutian of Muli,Qinghai which were carried out by Qinghai No.105 Coal Geolog-ical Exploration Team.Based on this research this paper builds a real-time identification method for gas hy-drates,namely recognizing the obvious sign of ice-shape gas hydrates and boiling water and water seep age de-tected by gas logging and core analysis.After further verification,this new real-time identification method which is supported by physical and chemical characteristics of gas hydrates is proved to be more reliable and applica-tive.Finally,it summarizes the abnormal symbol and obvious sign and recognizing method for gas hydrates'identification.