%0 Journal Article
%T DIFFUSION MECHANISM AND QUANTITATIVE MODEL OF MICROLEAKAGE IN CAPROCKS<br>盖层微渗漏散失机理与定量模型
%A Key Laboratory for Hydrocarbon Accumulation Mechanism in China University of Petroleum
%A Ministry of Education
%A Beijing
%A China
%A Tarim Oilfield Company
%A PetroChina
%A Kuerle
%A China
%A Tuha Oilfield Company
%A PetroChina
%A Hami
%A China
%A <br>黄志龙
%A 赵宝顺
%A 肖中尧
%A 袁胜学
%A 刘全洲
%J 天然气地球科学
%D 2007
%I 
%X Microleakage is one of the most important pathways in which the natural gas diffuses through caprocks.When natural gas enters the pore surfaces of caprocks,the phenomenon of adsorption appears.When adsorbed layer of the solid surface has reached a certain thickness,the condensation of capillary void happens,and the gas phase becomes "liquidoidlike",filling the hole.The liquidoidlike matter exists in the form of micellar.When this kind of condensation happens,the quantity of gas condensation will increase unceasingly,and then the gas becomes something whose nature is similar to the liquid.Its viscous force between moleculars increases and approaches the viscosity of water.Two different kinds of liquids may be mutually soluble when their viscosity is similar.In the form of micell,light hydrocarbons in the state of air bubble migrate vertically upward through leakage,this phenomenon is called microleakage.Based on the analysis of the microleakage mechanism,this paper establishes a quantitative model of microleakage diffusion,and calculates how much nature gas leaks through the period of geological history by a case study.
%K Cap rock
%K Microleakage
%K Absorption
%K Quantitative model<br>盖层
%K 微渗漏
%K 吸附
%K 定量模型
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=E8CFCA71B77A2FF3&jid=ACDC74B90F609E2435847898490F3647&aid=973F2327BD3BA0D4&yid=A732AF04DDA03BB3&vid=13553B2D12F347E8&iid=CA4FD0336C81A37A&sid=42425781F0B1C26E&eid=1371F55DA51B6E64&journal_id=1672-1926&journal_name=天然气地球科学&referenced_num=2&reference_num=7