新疆石油地质

新疆石油地质 ›› 2008, Vol. 29 ›› Issue (3): 296-298.

• 油气勘探 • 上一篇    下一篇

柴达木盆地南翼山构造油气成因及成藏分析

路俊刚1, 陈世加1, 王兴志1, 李元奎2, 周志凌1, 戴振刚3   

  1. 1.西南石油大学资源与环境学院, 成都610500;
    2.中国石油青海油田分公司勘探开发研究院, 甘肃敦煌736202;
    3.新疆时代工程有限公司, 新疆克拉玛依834000
  • 收稿日期:2007-06-21 发布日期:2020-08-19
  • 作者简介:路俊刚(1980-), 男, 山东潍坊人, 在读博士研究生, 石油地质,(Tel)13980543867(E-mail)lujungang21@yahoo.com.cn.
  • 基金资助:
    国家973项目, 中国西部典型叠合盆地复合优势通道形成演化与油气运移效率(2006CB202305)资助

Oil-Gas Origin and Accumulation Model of Nanyishan Structural Reservoir in Qaidam Basin

LU Jun-gang1, CHEN Shi-jia1, WANG Xing-zhi1, LI Yuan-kui2, ZHOU Zhi-ling1, DAI Zhen-gang3   

  1. 1. School of Resources and Environment, Southwest Petroleum University, Chengdu, Sichuan 610500, China;
    2. Research Institute of Exploration and Development, Qinghai Oilfield Company, PetroChina, Dunhuang, Gansu 736202, China;
    3. Xinjiang Shidai Engineering Company, Karamay, Xinjiang 834000, China
  • Received:2007-06-21 Published:2020-08-19

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摘要： 南翼山构造油气藏是目前柴西北区发现的最大油气藏。其深层E23是凝析气藏, 浅层N22是正常密度的油藏, 这种分布格局在柴西北区是唯一的, 对它进行成藏解剖对整个柴西北区的油气勘探具有重要的意义。结合原油轻烃、天然气碳同位素和生物标志化合物综合判识油源, 认为南翼山构造的N22与E23储集层原油来源不同, 深层E23油气来自E23烃源岩, 浅层N22的油来自N1 烃源岩; 南翼山构造的油气是就近捕获的产物, 不是从南边长距离运移而来, 深部凝析气藏的形成受有机质类型和成熟度共同控制。

关键词: 柴达木盆地, 南翼山油田, 油气成因, 油气藏, 凝析油气藏

Abstract: Nanyishan structural reservoir is the biggest reservoir in northwestern Qaidam basin at present. The deep E23 is a condensate gas reservoir and the shallow N2 2 is a conventional oil reservoir. Study and anatomy of such reservoirs with a unique distribution in this area is of significance to its petroleum exploration. It is suggested from comprehensive recognition of oil source in terms of the light hydrocarbon, gas carbon isotopes and biomarkers that the crude oil in the shallow N22 is different from that in the deep E23 . The former comes from the N1 source rocks, while the latter from the E23 source rocks, and pointed out that the oil and gas of Nanyishan structural reservoir are captured from the source rocks in the vicinity, not migrated from the south of Qaidam basin. The shape of deep condensate gas reservoir is controlled by the kerogen type and the maturity.

Key words: Qaidam basin, Nanyishan field, oil-gas origin, reservoir, condensate gas pool

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