Restudy of acid-extractable hydrocarbon data from surface geochemical survey in the Yimeng Uplift of the Ordos Basin, China: Improvement of geochemical prospecting for hydrocarbons

doi:10.1016/j.marpetgeo.2006.04.003

	Restudy of acid-extractable hydrocarbon data from surface geochemical survey in the Yimeng Uplift of the Ordos Basin, China: Improvement of geochemical prospecting for hydrocarbons
	Zhang, Liuping ; Bai, Guoping ; Zhao, Kebin ; Sun, Changqing
刊名	MARINE AND PETROLEUM GEOLOGY
	2006-06-01
卷号	23 期号:5 页码:529-542
关键词	Hydrocarbons Geochemical Exploration Interference Anomalies Data Processing
ISSN号	0264-8172
DOI	10.1016/j.marpetgeo.2006.04.003
文献子类	Article
英文摘要	Two geochemical surveys were conducted in 1992 and 2000 respectively in the Yimeng Uplift of the Ordos Basin, China. The earlier survey grid had 1 x 5 km spacing and the later survey grid had 0.5 x 0.5 km spacing. The acid-extractable hydrocarbons of both surveys show similar geochemical trends. However, the anomalies obtained with traditional statistical methods do not correlate with existing oil/gas fields. This study reveals two problems in the data and their processing. The first one is interference caused by the variation of soil composition. We applied a wavelet-analysis-based method to eliminate this interference in the data of the later survey. The second is that micro-seepage anomalies did not identify existing oil/gas fields and seepage anomalies related with faults had not been previously recognized. We modified the logic multiplication cluster analysis and applied a multi-fractal model and a back propagation artificial neural network to recognize these two types of anomalies that cannot be recognized with typical statistics in the study area. The recognized seepage anomalies display a string-bead-shaped pattern and some are distributed along a large fault in this area. The fault is the main pathway for hydrocarbon migration. The micro-seepage anomalies are ring-shaped and are mostly distributed close to the fault. They coincide with oil/gas field and structure traps. Therefore, reprocessing of existing geochemical data using these new methods can greatly improve their usefulness in hydrocarbon exploration. (c) 2006 Elsevier Ltd. All rights reserved.
WOS关键词	MICROSEEPAGE MECHANISMS ; PETROLEUM ; EXPLORATION ; SEPARATION ; AREA
WOS研究方向	Geology
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000240153100001
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/66118]
专题	中国科学院地质与地球物理研究所
通讯作者	Zhang, Liuping
作者单位	1.Chinese Acad Sci, Key Lab Petr Resource, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.China Univ Petr, Basin & Reservoir Res Ctr, Beijing 102249, Peoples R China 3.SinoPec, Res Inst Petr Explorat & Dev, Beijing 100083, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Liuping,Bai, Guoping,Zhao, Kebin,et al. Restudy of acid-extractable hydrocarbon data from surface geochemical survey in the Yimeng Uplift of the Ordos Basin, China: Improvement of geochemical prospecting for hydrocarbons[J]. MARINE AND PETROLEUM GEOLOGY,2006,23(5):529-542.
APA	Zhang, Liuping,Bai, Guoping,Zhao, Kebin,&Sun, Changqing.(2006).Restudy of acid-extractable hydrocarbon data from surface geochemical survey in the Yimeng Uplift of the Ordos Basin, China: Improvement of geochemical prospecting for hydrocarbons.MARINE AND PETROLEUM GEOLOGY,23(5),529-542.
MLA	Zhang, Liuping,et al."Restudy of acid-extractable hydrocarbon data from surface geochemical survey in the Yimeng Uplift of the Ordos Basin, China: Improvement of geochemical prospecting for hydrocarbons".MARINE AND PETROLEUM GEOLOGY 23.5(2006):529-542.