石油学报 ›› 2018, Vol. 39 ›› Issue (10): 1141-1154.DOI: 10.7623/syxb201810006

• 地质勘探 • 上一篇    下一篇

鄂尔多斯盆地马家沟组碳酸盐岩储层成岩相测井识别评价

李国欣1, 赵太平2,3, 石玉江2,3, 胡琮2,3, 陈阵2,3, 凡雪纯4, 李栋4, 赖锦4   

  1. 1. 中国石油勘探与生产分公司 北京 100007;
    2. 中国石油长庆油田公司勘探开发研究院 陕西西安 710018;
    3. 低渗透油气田勘探开发国家工程实验室 陕西西安 710018;
    4. 中国石油大学地球科学学院 北京 102249
  • 收稿日期:2018-01-30 修回日期:2018-07-16 出版日期:2018-10-25 发布日期:2018-12-05
  • 通讯作者: 赵太平,男,1971年11月生,1995年获石油大学(华东)学士学位,2005年获中国石油大学(北京)硕士学位,现为中国石油长庆油田公司勘探开发研究院高级工程师,主要从事天然气测井综合评价及研究工作。Email:zhaotp_cq@petrochina.com.cn
  • 作者简介:李国欣,男,1971年9月生,1995年获石油大学(华东)学士学位,2003年获石油大学(华东)硕士学位,现为中国石油勘探与生产分公司副总地质师、高级工程师,主要从事石油天然气地质综合研究及油气勘探管理工作。Email:guoxinli@petrochina.com.cn
  • 基金资助:

    国家科技重大专项(2016ZX05004-006)资助。

Diagenetic facies logging recognition and evaluation of carbonate reservoirs in Majiagou Formation,Ordos Basin

Li Guoxin1, Zhao Taiping2,3, Shi Yujiang2,3, Hu Cong2,3, Chen Zhen2,3, Fan Xuechun4, Li Dong4, Lai Jin4   

  1. 1. PetroChina Exploration & Production Company, Beijing 100007, China;
    2. Research Institute of Exploration & Development, PetroChina Changqing Oilfield Company, Shaanxi Xi’an 710018, China;
    3. National Engineering Laboratory for Exploration and Development of Low-permeability Oil & Gas Fields, Shaanxi Xi’an 710018, China;
    4. College of Geosciences, China University of Petroleum, Beijing 102249, China
  • Received:2018-01-30 Revised:2018-07-16 Online:2018-10-25 Published:2018-12-05

摘要:

基于岩心分析、常规测井和成像测井等资料,对鄂尔多斯盆地马家沟组五段5亚段—10亚段储层的储集空间类型、成岩作用类型和强度、成岩矿物组合特征等进行了研究。马家沟组五段5亚段—10亚段储层的岩性以粉晶、细晶白云岩为主,储集空间以晶间孔、晶间溶孔和溶孔为主,偶尔伴生成岩裂缝。根据成岩作用、成岩矿物和储层物性,马家沟组五段5亚段—10亚段可划分出晶间孔相、溶蚀相、成岩微裂缝相、压实压溶相、钙质胶结相和膏质充填相6种成岩相。结合成岩相在常规测井曲线上的响应特征,引入成像测井孔隙度谱分析方法,实现了单井成岩相的测井识别,分析结果与试气资料吻合较好。成像测井孔隙度谱的定性分析与常规测井相结合可揭示孔隙的发育状况和分布,判别测井成岩相,为储层评价和预测提供理论指导和方法支持。

关键词: 碳酸盐岩, 成岩相, 孔隙度谱, 马家沟组, 鄂尔多斯盆地

Abstract:

The reserving space type, diagenesis type, and diagenetic mineral assemblages in Member Ma 55-Ma 510 of Majiagou Formation, Ordos Basin are studied based on core observation, conventional logging and image logging data. The results show that the main lithology of Member Ma 55-Ma 510 in Majiagou Formation is dominated by silty and fine crystalline dolomite. The main reserving spaces are dominated by intercrystalline pores, intercrystalline dissolved pores and dissolved pores, occasionally with diagenetic fractures. According to diagenesis, diagenetic minerals and reservoir physical properties, the diagenetic facies are classified into six types, i.e., intercrystalline pore facies, corrosion facies, diagenetic micro-fracture facies, compaction and pressure solution facies, calcite cementation facies and gypsum filling facies. In combination with the response characteristics of diagenetic facies on the conventional logging curves, the imaging logging porosity spectrum analysis is introduced to realize the logging recognition of single-well diagenetic facies, and the analysis results are well consistent with gas production test data. The combination of qualitative analysis on imaging logging porosity spectrum and conventional logging can reveal the development and distribution of pores, and also determine diagenetic facies during logging and provide theoretical guidance and method support for reservoir evaluation and prediction.

Key words: carbonate rock, diagenetic facies, porosity spectrum, Majiagou Formation, Ordos Basin

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