天然气水合物钻探取心关键技术研究进展  

Development of Gas Hydrate Coring Technology

作　　者：许俊良[1] 薄万顺[1] 朱杰然[1] 

机构地区：[1]胜利石油管理局钻井工艺研究院,山东东营257017

出　　处：《石油钻探技术》2008年第5期32-36,共5页Petroleum Drilling Techniques

基　　金：国家高技术研究发展计划("863"计划)重大专项"天然气水合物勘探开发关键技术"之课题"天然气水合物钻探取心关键技术(编号:2006AA09A207)"的部分内容

摘　　要：天然气水合物是一种高效、清洁的新能源,由于它的不稳定性,采用的钻探取心装置必须具备保温保压功能。目前,国内的取样装置均是在调查船上进行作业的,仅限于在10 m之内的沉积物中取样,石油钻探用保压取心工具均无法达到该要求。国外资料调研表明,采用绳索保温保压取心方案可减少样品在起钻过程中的时间,使岩样尽量接近原始状态。简要介绍了国内外钻探取样技术的发展情况及天然气水合物取样方案的初步设想,目的是加快水合物的勘探步伐,使该清洁能源早日服务于人类。Natural gas hydrate is a new kind of high efficiency and clean energy resource. The device for coring the natural gas hydrate core must have the properties of preserving temperature and pressure due to its instability. At present, domestic coring devices are designed only for survey vessels and can only be used within 10 m of sedimentary formations. All the pressure preservation coring tools used for petroleum explorations nowadays can not meet this requirement. Base on the review to foreign literatures, using temperature and pressure preservation cable coring concept can reduce the trip time and keep the core at its initial conditions. This paper introduces the development of coring of the natural gas hydrate and a new preliminary concept for the purpose of speeding up the exploration of natural gas hydrate and having the clean energy used for human as early as possible.

关 键 词：天然气水合物 绳索取心 取心工具 

分 类 号：TE132.2[石油与天然气工程—油气勘探]