西南石油大学学报(自然科学版)

• 地质勘探 • 上一篇    下一篇

苏里格东部马5五储层特征及成藏控制因素

朱广社1,2,赵俊兴1,3,邵晓岩2,李凤杰1,季明明1   

  1. 1. 成都理工大学沉积地质研究院,四川成都610059
    2. 中国石油长庆油田分公司第三采油厂,宁夏银川750006
    3.“油气藏地质及开发工程”国家重点实验室成都理工大学,四川成都610059
  • 出版日期:2014-06-01 发布日期:2014-06-01
  • 基金资助:

    中国地质调查局项目(1212011220759)。

Reservoir Characteristics and Controlling Factors of M55 Sub-member of
Majiagou Formation in the East of Sulige Area

Zhu Guangshe1,2, Zhao Junxing1,3, Shao Xiaoyan2, Li Fengjie1, Ji Mingming1   

  1. 1. Institute of Sedimentary Geology,Chengdu University of Technology,Chengdu,Sichuan 610059,China
    2. No.3 Oil Production Plant,Changqing Oilfield Company,CNPC,Yinchuan,Ningxia 750006,China
    3. State Key Laboratory for Oil and Gas Reservoir Geology and Exploitation,Chengdu University of Technology,Chengdu,Sichuan 610059,China
  • Online:2014-06-01 Published:2014-06-01

摘要:

近年来,作为鄂尔多斯盆地油气勘探新层段,奥陶系马家沟组马5五亚段取得了天然气勘探的突破。在钻井岩
芯观察、测井分析、薄片鉴定、物性分析等基础上,结合生产资料,系统研究了苏里格地区东部马5五亚段碳酸盐岩储层
特征,分析了成藏控制因素。认为苏里格东部地区马5五亚段主要储层为白云岩型岩性气藏,气藏与白云岩之间对应关
系好,晶间孔是最主要的储集空间类型,其中,中晶白云岩、细晶白云岩和粉晶白云岩的储层物性最好;沉积微相为储
层的发育提供物质基础,白云岩控制了有效储层的分布,中—后期埋藏阶段的成岩作用对储层发育和成藏最为有利,
鼻状构造对成藏有一定的影响,古岩溶作用对马5五亚段储层的影响不大。

关键词: 苏里格东部, 马家沟组, 马5五亚段, 储层特征, 控制因素

Abstract:

Abstract:As the new member of oil-gas exploration,breakthrough in oil-gas exploration has been made in resent years at M55
Sub-member of Majiagou Formation in Ordovician. On the basis of the survey of core of well drilling,analysis of well logging,
identification of lamela,analysis of physical characteristics,the article studied the reservoir characteristics and analyzed the
controlling factors of reservoir in M55
Sub-member of Majiagou Formation in the east of Sulige Area. It suggested that the
main reservoir is a dolomite gas pool in M55
Sub-member in the east of Sulige Area and there is fine corresponding relationship
between the gas pool and dolomite. The intercrystalline pore is the main type of reservoir space. Among all kinds of rocks,the
medium crystalline dolomite,fine crystalline dolomite and powder crystalline dolomite have the best physical characteristics
of reservoir. The sedimentary microfacies mainly provided the material basis for the development of reservoir and the dolomite
controlled the distribution of effective reservoir. Besides,the diagenesis of buried period in the middle and later period is the
most beneficial to the reservoir development. Meanwhile,nose structure has certain influence on the gas pool,while paleokarst
takes little effect on reservoir in M55Sub-member.

Key words: Key words:easten Sulige, Majiagou Formation, M55 Sub-member, reservoir characteristics, controlling factors