应用含氮化合物资料分析延长组长9石油运移方向  

Analysis of Petroleum Migration Direction in Yanchang Formation Chang9 Reservoirs by Using Nitrogen Compounds Data

作　　者：张艳[1] 张雷[1] 杨亚娟[1] 李慧[2] 唐潮[3] 

机构地区：[1]中国石油长庆油田分公司勘探开发研究院 [2]中国石油长庆油田分公司第七采油厂 [3]中国石油长庆油田分公司第五采油厂

出　　处：《低渗透油气田》2013年第1期53-56,63,共5页

摘　　要：原油中含氮化合物咔唑类异构体具有不同的极性．由于屏蔽型异构体会在油气运移过程中呈相对富集的趋势，屏蔽型与裸露型或半屏蔽型化合物的比值增加。应用这一特征探讨鄂尔多斯盆地延长组长9石油的运移方向，研究已证实姬塬、陇东、洛川地区长9原油来自长7烃源岩，并在平面上呈现多个方向运移；陕北地区长9原油来自长9烃源岩，自西河口向志丹、吴旗地区运移。此结论与长7、长9烃源岩和长9原油的油源对比结论相一致，可以更好地指导勘探实践。The Carbazole isomers of nitrogen-containing compounds in the crude oil have different polarities. As the shielded isomers exhibit a relative enrichment trend during hydrocarbon migration, the ratio of shielded and exposed or half-shielded compounds will increase. The migration direction of Yanchang Fm Chang9 oil in Ordos Basin is discussed through application of this property. It has been verified that Chang9 oil in Jiyuan, Longdong, Luochuan areas comes from the Chang7 source rock and migrates in multiple directions on the plane; and Chang9 crude comes from Chang9 source rock amt migrates from Xihekou to Zhidan-Wuqi areas. This conclusion is consistent with the results of comparison between ChangT, Chang9 source tuck and the oil source of Chang9 crude oil, which can be used to better guide the exploration practices.

关 键 词：含氮化合物 分馏 油气运移 长9原油 

分 类 号：TE122.1[石油与天然气工程—油气勘探]