西南石油大学学报(自然科学版) ›› 2010, Vol. 32 ›› Issue (1): 21-26.DOI: 10.3863/j.issn.1674-5086.2010.01.004

• 地质勘探 • 上一篇    下一篇

华庆地区长6深水沉积低渗透砂岩储层特征

刘昊伟1;郑兴远2;陈全红3;郭艳琴4;刘春燕5   

  1. 1.中国石油勘探开发研究院,北京 海淀 100083; 2.中国石油大学(北京)资源与信息学院,北京 昌平 102249;3.中海石油研究中心,北京 东城 100027; 4.西安石油大学油气资源学院,陕西 西安 710063; 5.承德石油高等专科学校,河北 承德 067000
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2010-02-20 发布日期:2010-02-20
  • 通讯作者: 刘昊伟

ANALYSIS ON CHARACTERISTICS OF DEEPWATER SEDIMENTARY TIGHT SANDSTONE RESERVOIR OF CHANG 6 IN HUAQING AREA

LIU Hao-wei1;ZHENG Xing-yuan2;CHEN Quan-hong3;GUO Yan-qin4;LIU Chun-yan5   

  1. 1.Research Institute of Petroleum Exploration and Development,CNPC,Haidian Beijing 100083,China;2.College of Natural Resource & Information Technology,China University of Petroleum(Beijing),Changping Beijing 102249,China;3.CNOOC Research Center,Dongcheng Beijing 100027,China;4.Institute of Oil and Gas Resources,Xi′an Petroleum University,Xi′an Shaanxi 710065,China;5.Department of Petroleum Engineering,Chengde Petroleum College,Chengde Hebei 067000,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2010-02-20 Published:2010-02-20
  • Contact: LIU Hao-wei

摘要:

通过大量岩芯、铸体薄片、扫面电镜及物性资料分析,对鄂尔多斯盆地华庆地区长6段砂岩的沉积特征、岩石学特征、孔渗特征、成岩作用类型、孔隙结构及孔隙类型等进行了深入研究。研究表明,以深水浊积砂体为主的长6储层具有沉积物粒度偏细、成分成熟度较低、结构成熟度中等的岩石学特点;储集空间主要是原生粒间孔隙和次生溶蚀孔隙,孔隙结构以中、小孔细喉型为主。研究区孔隙度与渗透率具有较好的正相关性,为一套典型的低孔、低渗到特低孔、特低渗的储层。

关键词: 鄂尔多斯, 致密, 储层, 深水沉积, 浊积岩

Abstract:

The sedimentary characteristics,lithology characteristics,porositypermeability characteristics,diagenesis types,pore texture and pore types of the reservoir of the Change 6 formation in Huaqing area are studied through analyzing the core,thin sections,casting thin sections and physical property.The result indicates that the deepwater sedimentary sandstone reservoir of Chang 6 formation has the following characters  ultrafined grain size of the deposits,low comparative maturity and moderated textural maturity,the pore types include residual interparticle pores,and secondary dissolution pore.The pore structure is mainly composed by the micropore finethroat type.Between porosity and permeability of the investigated area,there are good positive correlations.It is a typical reservoir from low pore,low osmosis to extra low pore,extra low osmosis.

Key words: Ordos, tight, reservoir, deep water sedimentation, turbidite

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