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柴达木盆地西部跃进二号油田早渐新世沉积相研究

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于跃, 牟中海, 杨雪峰, 漆麟, 陈袁, 苏秋. 柴达木盆地西部跃进二号油田早渐新世沉积相研究[J]. 西北地质, 2015, 48(4): 10-19.
引用本文: 于跃, 牟中海, 杨雪峰, 漆麟, 陈袁, 苏秋. 柴达木盆地西部跃进二号油田早渐新世沉积相研究[J]. 西北地质, 2015, 48(4): 10-19.
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YU Yue, MU Zhonghai, YANG Xuefeng, QI Lin, CHEN Yuan, SU Qiu. Research on Early-Oligocene Sedimentary Facies of YuejinⅡ Oilfield in Qaidam Basin[J]. Northwestern Geology, 2015, 48(4): 10-19.
Citation: YU Yue, MU Zhonghai, YANG Xuefeng, QI Lin, CHEN Yuan, SU Qiu. Research on Early-Oligocene Sedimentary Facies of YuejinⅡ Oilfield in Qaidam Basin[J]. Northwestern Geology, 2015, 48(4): 10-19.
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柴达木盆地西部跃进二号油田早渐新世沉积相研究

  • 1.

    成都理工大学, 四川成都 610059;西南石油大学, 四川成都 610500

  • 2.

    西南石油大学, 四川成都 610500

  • 3.

    中国石油青海油田分公司, 甘肃敦煌 736202

  • 4.

    川庆钻探工程公司地质勘探开发研究院, 四川成都 610056

  • 5.

    中国石油塔里木油田分公司勘探开发研究院, 新疆库尔勒 841000

  • 基金项目: 中国石油天然气股份有限公司重大科技专项"柴达木盆地建设千万吨油气田综合配套技术研究"课题06"柴达木盆地老区稳产提高采收率技术研究"(2011E-0306)

Research on Early-Oligocene Sedimentary Facies of YuejinⅡ Oilfield in Qaidam Basin

  • 1.

    Chengdu University of Technology, Chengdu 610059, Sichuan, China;Southwest Petroleum University, Chengdu 610050, Sichuan, China

  • 2.

    Southwest Petroleum University, Chengdu 610050, Sichuan, China

  • 3.

    Petro China Qinghai Oilfield Company, Dunhuang 736202, Gansu, China

  • 4.

    Chuanqing Drilling Engineering Company Limited, Geological Exploration & Development Research Institute of CNPC, Chengdu 610056, Sichuan, China

  • 5.

    Petro China Tarim Oilfield Company Exploration and Development Research Institute, Korla 841000, Xinjiang, China

    摘要
  • 目前在柴达木盆地西部跃进二号油田沉积相研究工作中,存在对微相类型争议性大、展布特征不精细等问题,这些问题制约着油田高含水期的精细开发。因此,根据沉积学基本原理,采用地质相识别(包括岩石学标志和沉积构造标志)与测井相分析(包括自然伽马和自然电位的曲线特征)的综合研究方法,细化该油田早渐新世辫状河三角洲平原、辫状河三角洲前缘、滨浅湖沉积亚相,得出水上分流河道、泛滥平原、水下分流河道、河口坝、远砂坝、席状砂、分流间湾、砂坝、砂滩、滨浅湖泥10种微相。该套地层纵向从下至上具有完整的辫状河三角洲平原-辫状河三角洲前缘-滨浅湖的退积式正旋回相序。结合沉积微相平面展布和纵向相序,跃进二号油田早渐新世这套油藏存在2种类型的沉积模式:辫状河三角洲模式和湖泊模式。
    The micro-facies are uncertain and their distribution characteristics are not fine, which exists in the sedimentary study of YuejinⅡ oilfield that locatedatthe west part of Qaidam Basin. And such problems restrict the fine development at the high water-cut stage.So based on the basic principle of sedimentology, the delta plain, braid-river delta front, shore-shallow lake sedimentary background in early-Oligocene have been elaborated by synthesizing geological facies identification(e.g. petrology marks and sedimentary tectonics marks) and logging facies analysis(e.g. and SP curve character).Such sedimentary sub-faciesare divided into ten micro-facies, such as water distributary channel and flood plain, underwater distributary channel, mouth bar, distal bar, sheet sand, distributary bay, sand bar, sand beach, shore-shallow lake of mud. From the bottom to top vertically, the strata have a complete retrograding sequences, including braided river delta plain,braided river delta, shore-shallow lake. Combination of vertical and plane distribution of sedimentary micro-facies, there are two types of the reservoir sedimentation models, namely, the model of the braided river delta and lake in the target zone.
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    • 参考文献(22)

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出版历程
收稿日期:  2015-03-10
修回日期:  2015-07-09
刊出日期:  2015-12-15

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