新型天然气水合物保温保压取样器具研制  

Development of a new type of natural gas hydrate insulation and pressure sampling tool

作　　者：赵义 陈云龙 阮海龙 汪成龙 刘协鲁 刘海龙 ZHAO Yi;CHEN Yunlong;RUAN Hailong;WANG Chenglong;LIU Xielu;LIU Hailong(Beijing Institute of Exploration Engineering,Beijing 100083,China)

机构地区：[1]北京探矿工程研究所,北京100083

出　　处：《地质装备》2024年第S01期139-144,共6页Equipment for Geotechnical Engineering

基　　金：中国地质调查局地质调查项目(编号:DD20221722)。

摘　　要：海域天然气水合物分布于深海沉积物中,受外界环境变化易分解。当利用常规取样设备将天然气水合物样品提取至地面(海面)过程中,由于压力或温度的变化会导致天然气水合物分解,这会使样品遭到破坏,无法提供有效的科学信息。为此研制天然气水合物保温保压取样器,突破快速打捞、低温保压技术、板阀密封、低扰动取样等关键技术,完成室内和海上试验,获取水合物储层原位样品,为我国海域天然气水合物资源勘查提供技术装备支撑。Natural gas hydrates in sea are distributed in deep-sea sediments and are easily decomposed by external environmental changes.When using conventional sampling equipment to extract natural gas hydrate samples to the ground(sea surface),changes in pressure or temperature can cause the decomposition of natural gas hydrates,which can damage the samples and fail to provide effective scientific information.To this end,a natural gas hydrate insulation and pressure maintaining sampler has been developed,breaking through key technologies such as rapid salvage,low-temperature pressure maintaining technology,plate valve sealing and low disturbance sampling.Indoor and offshore experiments have been completed to obtain in-situ samples of hydrate reservoirs,providing technical equipment support for the exploration of natural gas hydrate resources in China’s marine areas.

关 键 词：天然气水合物 保温 保压 原位样品 低扰动取样 

分 类 号：P634.4[天文地球—地质矿产勘探]