新疆石油地质

新疆石油地质 ›› 2008, Vol. 29 ›› Issue (2): 202-205.

• 油气勘探 • 上一篇    下一篇

柴达木盆地西南缘砂新1 井烃源岩评价

卿颖1, 罗金海2, 张敬艺2, 刘桂花3, 高雪峰3   

  1. 1.中国石油冀东油田分公司勘探开发研究院, 河北唐山063004;
    2.西北大学地质学系大陆动力学国家重点实验室, 西安710069;
    3.中国石油青海油田分公司勘探开发研究院, 甘肃敦煌736202
  • 收稿日期:2007-07-17 发布日期:2020-08-17
  • 作者简介:卿颖(1979-), 男, 四川内江人, 硕士, 石油地球化学,(Tel)13731551882(E-mail)qingying8658@sina.com.

Evaluation of Source Rocks of Well Shaxin-1 in Southwestern Margin of Qaidam Basin

QING Ying1, LUO Jin-hai2, ZHANG Jing-yi1, LIU Gui-hua3, GAO Xue-feng3   

  1. 1. Research Institute of Exploration and Development, Jidong Oilfield Company, PetroChina, Tangshan, Hebei 063004, China;
    2. State Key Laboratory of Continental Dynamics, Department of Geology, Northwest University, Xi'an, Shaanxi 710069, China;
    3. Research Institute of Exploration and Development, Qinghai Oilfield Company, PetroChina, Dunhuang, Gansu 736202, China
  • Received:2007-07-17 Published:2020-08-17

PDF

215

摘要： 对柴达木盆地西部坳陷的狮子沟-油砂山构造带上砂新1 井钻遇的古近系和新近系暗色泥岩的有机质丰度、类型和成熟度进行综合评价, 并对主要层段——下干柴沟组上段(E3x)和上干柴沟组(N1s)与邻井油源进行对比。烃源岩评价结果表明, 砂新1 井暗色泥岩主体为中等烃源岩, 有机质类型以Ⅱ1 型和Ⅱ2 型为主。上油砂山组(N22s)烃源岩处于低成熟阶段, 上干柴沟组(N1s)-下干柴沟组上段(E3x)烃源岩己进入成熟阶段。油源对比证实, 砂新1 井区油源与邻近各井不同, 主要表现为自生自储型, 这在一定程度上制约了砂新1 井区的油气成藏规模。

关键词: 柴达木盆地, 狮子沟油田, 烃源岩评价, 油源对比

Abstract: The study on the comprehensive evaluation about the abundance of organic matter, type and maturity in dark mudstone of Paleogene and Neogene, ddrilled in Well Shaxin-1 on the structural belt of Shizigou-Youshashan in west deression of Qaidam basin and the oil-source correlation in the major layer of E3x and N1s of this well with its adjacent wells show that main part of the dark mudstone in Well Shaxin-1 is medium source rocks with organic matter of Type Ⅱ1 and Ⅱ2 . The source rock of N2 2s is in stage of low maturity, while those of N1s-E3x have entered mature stage. The correlation of oil sources indicates that the oil source from Well Block Shaxin-1 differs from adjacent wells areas and it assumes self-generating and self-storage type, which constraints the scale of hydrocarbon accumulation in some extent in Well Block Shaxin-1.

Key words: Qaidam basin, Shizigou oilfield, source rock evaluation, oil source correlation

中图分类号: