天然气水合物开采技术研究进展  

Research Advances of the Production Techniques for Gas Hydrate

作　　者：吴传芝[1] 赵克斌[2] 孙长青[1] 何汉平[3] 陈银节[1] 杨俊[1] 

机构地区：[1]中国石化石油勘探开发研究院无锡石油地质研究所,江苏无锡214151 [2]中国石化石油勘探开发研究院,北京100083 [3]中国石化石油工程技术研究院,北京100101

出　　处：《地质科技情报》2016年第6期243-250,共8页Geological Science and Technology Information

基　　金：中国石化科技部项目(P13037;P14039)

摘　　要：天然气水合物开采技术的改进与完善是水合物资源走向商业开发面临的重要问题,因此天然气水合物开采技术研究一直深受重视,新成果不断涌现。通过对国内外天然气水合物开采技术研究动态的跟踪,分析总结了这一前沿领域的最新研究进展。在天然气水合物常用开采方法中,加热开采法研究进展最为明显,在传统井口注热法基础上,提出了电磁加热、原地生热、干热岩加热等许多全新的原位加热思路;降压开采法与二氧化碳置换开采法在提高开采效率方面也做了诸多尝试,取得了一些新认识。另一方面,针对天然气水合物藏开采工艺技术也进行了积极的研究,在传统单井开采方案基础上,提出了双井、多井等多种新开采方案;水平井与水力压裂技术在水合物开采工艺研究中也显现出日益活跃的趋势。天然气水合物开采技术研究领域取得的这些新进展,进一步强化了人类对天然气水合物资源开发利用的技术基础。The improvement of gas hydrate production techniques is crucial for the commercial development of gas hydrate resources. Therefore, the research in gas hydrate production techniques has long been highlighted and new achievements have been made constantly. Based on a large number of data published both inside and outside China, the authors investigated the research trends and analyzed the recent research development of the gas hydrate production techniques. Among the main hydrate dissociation-based methods, thermal stimulation has made the most obvious achievements in recent years, and a number of innovative in-situ heating ideas have been proposed in addition to the traditional thermal injection method, such as electromagnetic heating, in-place heat generating, and dry rock heating. Various attempts have been made to improve the production efficiency of the depressurization and CO2 replacement methods, and new understandings have also been developed. On the other hand, drilling techniques for gas hydrate production have been under active research, too. Various new drilling schemes, such as dual well and multiple well, have been put forward besides the traditional single well drilling scheme. Furthermore, horizontal well and water fracturing techniques have also been introduced into gas hydrate production research. All these new ad- vances made in the research of gas hydrate production field have intensified the technical foundation for human beings to develop and utilize gas hydrate resources.

关 键 词：天然气水合物 开采方法 开采工艺 研究进展 研究趋势 

分 类 号：TE3[石油与天然气工程—油气田开发工程]