时域反射技术测量THF水合物体系含水量的实验研究  

EXPERIMENTAL STUDY ON WATER CONTENT MEASUREMENT IN THF HYDRATE SYSTEM WITH TIME DOMAIN REFLECTOMETRY(TDR)

作　　者：孙中明[1,2] 刘昌岭[2] 赵仕俊[3] 孙建业[2] 

机构地区：[1]中国石油大学(华东)信息与控制工程学院,青岛266555 [2]青岛海洋地质研究所,青岛266071 [3]中国石油大学(华东)石油仪器仪表研究所,山东东营257061

出　　处：《海洋地质前沿》2012年第5期64-70,共7页Marine Geology Frontiers

基　　金：国土资源部公益性行业科研专项(201111026)

摘　　要：利用时域反射技术(TDR)测量了不同摩尔比的四氢呋喃(THF)水溶液生成水合物前后的介电常数,并根据生成水合物前初始含水量和生成水合物结束后剩余水含量理论值建立了测量"THF水溶液+水合物"体系含水量的经验计算公式。随后,利用该公式计算出了THF水合物生成过程中水合物的含量,并建立了水合物含量与介电常数之间的关系式。此外,THF水溶液生成水合物过程中介电常数随时间非线性减小。TDR was used to determine dielectric constant of THF aqueous solution with different THF/H2O mole ratios before and after THF hydrate formation.As a result,the empirical formula was built to measure the water content of the system of ＂THF aqueous solution ＋ THF hydrate＂.Then,the formula was applied to calculation of the content of THF hydrate produced by THF aqueous solution and to establishment on correlation between the content of hydrate and dielectric constant.In addition,the dielectric constant decreased during hydrate formation in THF aqueous solution.

关 键 词：时域反射技术 含水量 THF水合物 水合物含量 

分 类 号：TE132.2[石油与天然气工程—油气勘探]