Hydrocarbon Detection and Application in Lithologic Reservoir Exploration
Received date: 2010-05-24
Revised date: 2010-08-26
Online published: 2010-10-10
Based on seismic-geology integration of oil and gas layer in drilled hole and amplitude-maintained and pure-wave seismic data, we selected the seismic dynamic parameters within small window to detect oil and gas in target body, and used the integrated variation of multi-attributes of seismic to determine the space range of oil-gas layers. Combining with fluid potential and all of these behaviors above, the auxiliary reference for integrated evaluation of lithologic traps in slope was pointed out in exploration stage of oil and gas. We applied this method to determined the distribution of oil and gas layers and predict the potential layers in Qianjiang sag of Jianghan basin and Taibei sag of Tuha basin. That the commercial oil and gas product in the drilled Yan-5 well in the predicted favorable Yanhe block in Qianjiang sag, wells of Hongtai-13, Ge-11 and Ge13 in the Hongtai-Gedatai block and well Shengbei-16 in Shengbei area of Tuha basin gotten has proved that this method is available for the high exploration degree area with high quality seismic data, high resolution, and simple structure. The applied result indicated that selection of seismic data, fine calibration of oil-gas layers, test of oil and gas detection (i.e. optimization of sensitive seismic attributes, selection of effective frequency spectrum), determination of the window magnitude, and interpretation of top and bottom constrained layers in target body are critical for using hydrocarbon detection using amplitude-maintained and pure-wave seismic data to do oil and gas detection.
YANG Zhan-long, SHA Xue-Mei, LI Zai-Guang . Hydrocarbon Detection and Application in Lithologic Reservoir Exploration[J]. Natural Gas Geoscience, 2010 , 21(5) : 822 -827,874 . DOI: 10.11764/j.issn.1672-1926.2010.05.822
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