石油与天然气地质 ›› 2001, Vol. 22 ›› Issue (3): 282-283.doi: 10.11743/ogg20010323

• 油气空间 • 上一篇    下一篇

柴达木盆地葫芦山构造的多参数化探检测

马金龙, 张显武, 刘安英   

  1. 大庆油田有限责任公司勘探开发研究院, 黑龙江大庆163712
  • 收稿日期:2001-03-13 出版日期:2001-09-25 发布日期:2012-01-16

MULTI-PARAMETER DETECTION OF GEOCHEMICAL EXPLORATION IN HULUSHAN STRUCTURE,QAIDAM BASIN

Ma Jinlong, Zhang Xianwu, Liu Anying   

  1. Research Institute of Exploration and Development, Daqing Oilfield Cor. , Daqing, Heilongjiang
  • Received:2001-03-13 Online:2001-09-25 Published:2012-01-16

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摘要：

采用多参数油气地化指标综合分析,柴达木盆地葫芦山构造可划分出3个化探异常区:Ⅰ号异常区位于葫深1井周围,面积约45km2,游离烃、酸解烃及ΔC均有异常,且叠置吻合性好;Ⅱ号异常区位于构造北部,主要为游离烃异常;Ⅲ号异常区位于测区的东南角,规模较小,除游离烃甲烷外,其他异常均较弱.根据游离烃组分及碳同位素组成分析,该构造的地表化探异常来源于深部热裂解成因的油气垂向微渗漏.

关键词: 化探, 异常区, 成因, 柴达木

Abstract:

According to the analysis of multi parameter hydrocarbon geochemical indicators,Hulushan structure in Qaidam Basin could be divided into 3 geochemical abnormal zones:the first abnormal zone is around Husheng 1 Well with an area of 45 km2.Its free hydrocarbon,acid degraded hydrocarbon and ΔC are all abnormal and coincide with each other;the second abnormal zone is in the north margin of the structure mainly with free hydrocarbon anomaly;the third abnormal zone in the southeast corner of the structure is small with free methane anomaly.Based on carbon isotopic compositions,the surface geochemical anomalies of the structure should be derived from vertical microseepage of pyrolysed hydrocarbon in deep stratum.

Key words: chemical exploration, abnormal zone, origion, Qaidam Basin

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