西峰油区酸解烃指标异常与长8油藏关系  

Relationship Between Unusual Index of Soil Acid Hydrolysis Hydrocarbon and Chang 8 Oil Pool in Xifeng Oil Area

作　　者：程党性[1,2] 邓秀芹[1,2] 孙勃[1,2] 李继宏[1,2] 郭正权[1,2] 

机构地区：[1]中国石油长庆油田分公司勘探开发研究院,陕西西安710018 [2]低渗透油气田勘探开发国家工程实验室,陕西西安710018

出　　处：《西南石油大学学报（自然科学版）》2016年第4期48-55,共8页Journal of Southwest Petroleum University(Science & Technology Edition)

基　　金：国家高技术研究发展计划"863"项目(2008AA121102);国家科技重大专项(2011ZX05044;2011ZX05001-004)

摘　　要：借助西峰地区"三纵一横"四条地球化学剖面数据,通过干扰因素、地球化学背景及异常下限值分析,建立地表土壤酸解烃地球化学指标异常与深部延长组长8油藏的对应关系,以验证土壤酸解烃技术对鄂尔多斯盆地石油勘探的适用性。结果表明西峰油区地表土壤酸解烃甲烷(SC1)与重烃(SC_2_+)地化指标异常起伏形态具有很好的一致性,且与深部延长组长8油藏具有非常好的对应性,甲烷(SC1)与重烃(SC_2_+)地化指标异常高值区往往为油田规模储量区或工业油流发育区,而低值区往往为无显示区或含油性较差区。Based on the three longitudinal and a transverse geochemistry section data in Xifeng area, the article intends to test the applicability of acid hydrolysis hydrocarbon to oil exploration in Ordos Basin. By analyzing the interference factors, the background level and geochemistry threshold on geochemistry data, we established the congruent relationship between unusual index of soil acid hydrolysis hydrocarbon and deep Chang 8 oil pool in Yanchang deposit. The results show that the unusual geochemistry index of heavy hydrocarbon is consistent with that of soil acid hydrolysis hydrocarbon methane and correspond well with the deep Chang 8 oil pool. The high geochemistry unusual level of methane and heavy hydrocarbon geochemical index often correspond with oilfield scale reserve area or industrial oil flow area, while the lower geochemistry unusual level always corresponds with areas of bad or no indication ofoil and gas.

关 键 词：鄂尔多斯盆地 西峰油区 酸解烃 地化异常 长8 

分 类 号：TE122.3[石油与天然气工程—油气勘探]