Oil Reservoir Characterization via Crude Oil Analysis by Downhole Fluid Analysis in Oil Wells with Visible-Near-Infrared Spectroscopy and by Laboratory Analysis with Electrospray Ionization Fourier Tr

详细信息    查看全文

• 作者：Oliver C. Mullins ; Ryan P. Rodgers ; Peter Weinheber ; Geoffrey C. Klein ; Lalitha Venkataramanan ; A. Ballard Andrews ; Alan G. Marshall
• 刊名：Energy & Fuels
• 出版年：2006
• 出版时间：November 2006
• 年：2006
• 卷：20
• 期：6
• 页码：2448 - 2456
• 全文大小：732K
• 年卷期：v.20,no.6(November 2006)
• ISSN：1520-5029

文摘

In the first study of its kind, we analyze heavy ends of crude oils to characterize oil reservoirs by both insitu downhole fluid analysis (DFA) in oil wells along with heavy-end fingerprinting utilizing ultrahigh resolutionmass spectrometry. One of the biggest problems in the exploitation of oil reservoirs in high-cost settings is thedifficulty of characterizing flow connectivity or compartmentalization of the various permeable zones. Standardindustry methods to determine compartmentalization either fail or are prohibitively expensive. A relativelynew method of performing DFA on crude oils has identified compartmentalization on a regular basis and israpidly becoming an industry standard. Here, compartmentalization is established in an oil-containing verticallystacked sand-shale sequence by performing visible-near-infrared spectroscopy on crude oils in situ in the oilwell. These crude oils are then fingerprinted by electrospray ionization-Fourier-transform ion-cyclotron-resonance mass spectroscopy. This novel analysis protocol can lead to a more detailed understanding of thereservoir and provides a new utility for advanced methods of analytical chemistry; this charter fits within thenew field of petroleomics.