Alkyldibenzothiophenes:molecular tracers for filling pathway in oil reservoirs

Based on the thermodynamic stability and hydrogen bond mechanisms, alkyldibenzothiophene molecular ratios, 4-/1-MDBT, 2,4-/1,4- and 4,6-/1,4-DMDBT, are used to characterize organic maturity and oil migration, which can act as molecular tracers for the filling orientation and pathway in oil reservoir. The application of aforesaid molecular parameters, in a Neogene sandstone reservoir of the XJ24-3 Oilfield, Zhujiangkou Basin and in an Ordovician carbonate reservoir of Karst pore-fissure-network type in the Tahe Oilfield, Tarim Basin, manifests that those ratios are reliable tracers compared with other molecular ratios, and thus, alkyldibezothiophene parameters may be used in a wide range of maturity, especially for high- to post-mature oil and severely biodegraded oil, both of which are short of effective molecular parameters.

作 者： WANG Tieguan HE Faqi LI Meijun HOU Yong Guo Shuqi   作者單位： WANG Tieguan,LI Meijun,HOU Yong,Guo Shuqi(Key Laboratory of Petroleum Accumulation Mechanism of the Ministry of Education, University of Petroleum, Beijing 102249, China)

HE Faqi(Exploration & Production Department, SINOPEC, Beijing 100029, China) 

刊 名： 科學通報（英文版）  SCI 英文刊名： CHINESE SCIENCE BULLETIN  年，卷(期)： 2004 49(22)  分類號： P6  關鍵詞： oil reservoir   filling pathway   molecular tracers   dibenzothiophenes (DBTs)   methyldibenzothiophenes (MDBTs)   dimethy- ldibenzothiophenes (DMDBTs)  

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