Technical Progress of a Pilot Project to Produce Natural Gas Hydrate in Japanese Waters
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摘要: 为了深入了解日本在海域天然气水合物试采过程中获得的经验和教训，给我国天然气水合物的开发提供借鉴和参考，系统介绍了日本第二次海域天然气水合物试采过程，并对日本2次试采技术和存在的问题进行了比较分析，归纳和总结了日本在天然气水合物试采方面的主要技术进展。研究发现，日本在2次天然气水合物试采过程中均遇到了出砂等技术问题，在钻井完井、防砂、人工举升、监测和原位测试等技术方面仍存在显著不足。结合日本在海域天然气水合物开发技术上取得的进步和不足，提出了统一协调研发工作、形成具有自主知识产权的开发设备体系和建立具有针对性的勘查与试采规范等建议。Abstract: In order to fully rounded understanding experience and lessons gained during Japan’s offshore hydrate production tests and providing the necessary references for the hydrate research and development(RD)in China,the paper systematically introduced Japan’s second offshore hydrate production test,compared and analyzed the technologies and problem of two production tests,and summarized the development of main production technologies in Japan.Research showed that technical problems such as sand production occurred in two production tests,and there were still significant deficiencies in several aspects, including drilling and completion,sand control,artificial lift,monitoring and in situ test.Combined with Japan’s progress and deficiencies in offshore gas hydrate development technologies,some suggestions were put forward,such as to closely coordinate RD,to form a development device system with independent intellectual property rights,and to develop the specifications for exploration and pilot production tests.
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Keywords:
- unconventional energy /
- methane hydrate /
- pilot production technology /
- Japan
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