PDF《天然气水合物保真取样系统设计的理论基础》

1 ℃,可以是水合 物的分解压力升高很大.所以将温度和压力相结合 设计保真取样系统 ,将一定获得保真较高的岩心样 品. [参考文献] [1] I Friedman J R O' Neil. Compilation of stable isotope fractionation fac2 tors of geochemical interest [M]. Data of Geochemistry , 6th edition , Geological Survey Professional Paper

440 - KK,1977 ,61. [2] B Fry , E B Sherr. 13C measurements as indicators of carbon flow in marine and freshwater ecosystems[ M]. Stable Isotopes in Ecological Research (P W Rundel , J R Ehleringer and K A Nagy , eds. ) [ C]. Springer - Verlag , New Y ork , NY.

1984 ,196~229. [3] L D Kulm ,E Suess. Relationship between carbonate deposits and fluid venting : Oregon accretionary prism[J ]. Journal of Geophysical Re2 search ,

1990 ,95 :8899~8915. [4] D Orange , H G Greene , C McHugh , et al. Fluid expulsion along fault zones and mud volcanoes in Monterey Bay[J ]. EOS ( Transactions , American Geophysical Union) ,

1993 ,74 : 242. [5] 蒋国盛. 天然气水合物的钻进过程控制和取样技术[J ]. 探矿工 程,2001(3) . THE THEORY ON DESIGNING A IN- SITU SAMPLING SYSTEM OF GAS HYDRATE DOU - Bin1 , ZHU Yun - li2 , J IANG Guo - sheng1 , TANG Feng - lin1 (1. Engineering Faculty , China University of Geosciences , Wuhan 430074;

2. Reconnaissance and Survey Division , Gushi county , Henan province , Gushi 465200) Abstract :The basic theory about how to design a in - situ sampling system has been discussed firstly based on chemistry properties and conditions of gas hy2 drate formation. The designed sampling system can automatically control pressure and temperature when it takes the samples in borehole. K ey words :gas hydrate , in - situ sampling system , forming condition , basic theory

8 8 地质与勘探

2004 年