A preliminary evaluation model for reservoir hydrocarbon generating potential established based on dissolved hydrocarbons in oilfield water

• Published in: Acta geochimica Vol. 25; no. 1; pp. 85 - 89
• Main Author: 赵红静 孙玮琳 何保田 梅博文 张敏
• Format: Journal Article
• Language: English
• Published: Dordrecht Springer Nature B.V 2006; Geochemistry Department of Yangtze University, Jingzhou 434023, China%National Geological Experimental and Test Center, Beijing 100037, China%Huabei Oilfield Branch Company ofPetroChina, Bazhou 037000, China
• Subjects: Alkanes; Carbon; Geochemistry; Hydrocarbons; Natural gas exploration; Oil; Oil and gas fields; Oil exploration; Oil field equipment; Oil fields; Oil reservoirs; Reservoirs; Studies; Water analysis; Water reservoirs; Water sampling; 地质勘探; 地质构造; 塔里木盆地; 碳氢化合物; oilfield water; dissolved hydrocarbon; hydrocarbon-generating potential of reservoir; hydrocarbon exploration; Tarim Basin
• ISSN: 1000-9426; 2096-0956; 1993-0364; 2365-7499
• DOI: 10.1007/BF02894799

A large number of oilfield water samples were analyzed in this work. Research on the relationship between the concentrations and distribution of dissolved hydrocarbons suggested that the contents and composition of dissolved hydrocarbons varied with the hydrocarbon-generating potential of reservoirs. The concentrations of dissolved hydrocarbons were low in dry layers, water layers and gas-water layers, but high in gas reservoirs and oil reservoirs, especially in gas reservoirs with condensed oil. Series of carbon-number alkanes were usually absent in oilfield water from dry layers, water layers and gas-water layers but abundant in oilfield water from oil-water reservoirs, gas reservoirs and oil reservoirs, whose carbon numbers varied most widely in oil reservoirs and least in gas reservoirs. A preliminary evaluation model for reservoir hydrocarbon-generating potential was established based on the characteristics of dissolved hydrocarbons in oilfield water to assist hydrocarbon exploration.