Advanced Search
Volume 38 Issue 2
. 
Turn off MathJax
Article Contents
Article Navigation >  PETROLEUM GEOLOGY & EXPERIMENT  > 2016  >  38(2): 224-230
Wang Yuxiang, Zhou Wen, Guo Rui, Fu Meiyan, Shen Zhongmin, Zhao Liming, Chen Wenling. Characteristics and origin of high porosity and low permeability carbonate reservoirs in the Sa'di Formation, Halfaya Oil Field, Iraq[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2016, 38(2): 224-230. doi: 10.11781/sysydz201602224
Citation: Wang Yuxiang, Zhou Wen, Guo Rui, Fu Meiyan, Shen Zhongmin, Zhao Liming, Chen Wenling. Characteristics and origin of high porosity and low permeability carbonate reservoirs in the Sa'di Formation, Halfaya Oil Field, Iraq[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2016, 38(2): 224-230. doi: 10.11781/sysydz201602224
shu

Characteristics and origin of high porosity and low permeability carbonate reservoirs in the Sa'di Formation, Halfaya Oil Field, Iraq

doi: 10.11781/sysydz201602224
  • 1.

    State Key Lab of Oil and Gas Reservoir Geology and Exploitation, Chengdu University of Technology, Chengdu, Sichuan 610059, China

  • 2. Research Institute of Petroleum Exploration & Development, CNPC, Beijing 100083, China

  • Received Date: 2015-04-10
  • Rev Recd Date: 2016-02-25
  • Publish Date: 2016-03-28
    Abstract
  • The high-porosity and low-permeability reservoir in the Sa'di Formation of the Halfaya oil field in Iraq makes this a special oil and gas reservoir in the Middle East. Reservoir characteristics and the origin of high porosity and low permeability were studied by core observation, cast thin sections, physical property testing and mercury injection experiments. Rocks in the reservoir include grained limestones (oolitic limestones and limestones), packstones, wackestones and micritic limestones. The Sa'di Formation is characterized by ramp facies, and develops inner ramp and outer ramp subfacies. The lower part of the formation has better physical properties than the upper part. Pores are mainly intrafossil and intragranular. Mercury injection experiments showed a high driving pressure, small throat radius and poor flowability. The reservoir is mainly controlled by sedimentary facies, and the reservoirs of different facies showed different properties. Diagenetic transformation has constructive effects on the formation of secondary pores, resulting in poor cementation. High porosity and low permeability of the reservoir can be explained by the following factors:(1) Intrafossil pores developed, yet were poorly connected. (2) Sedimentary environment was featured by poor hydrodynamic conditions, and was poorly reformed. (3) The reservoir was controlled by sedimentary process, and the digenesis impact was very weak. (4) Pore types varied, but had low contribution to permeability.

     

    • FullText(HTML)
  • loading
    • References(26)
  • [1]
    金之钧.中国海相碳酸盐岩层系油气勘探特殊性问题[J].地学前缘,2005,12(3):15-22. Jin Zhijun.Particularity of petroleum exploration on marine carbonate strata in China sedimentary basins[J].Earth Science Frontiers,2005,12(3):15-22.
    [2]
    秦瑞宝,李雄炎,刘春成,等.碳酸盐岩储层孔隙结构的影响因素与储层参数的定量评价[J].地学前缘,2015,22(1):251-259. Qin Ruibao,Li Xiongyan,Liu Chuncheng,et al.Influential factors of pore structure and quantitative evaluation of reservoir parameters in carbonate reservoirs[J].Earth Science Frontiers,2015,22(1):251-259.
    [3]
    白国平.中东油气区油气地质特征[M].北京:中国石化出版社,2007. Bai Guoping.Petroleum geology characteristics of oil and gas in the Middle East region[M].Beijing:China Petrochemical Press,2007.
    [4]
    何登发,何金有,文竹,等.伊拉克油气地质与勘探潜力[M].北京:石油工业出版社,2011. He Dengfa,He Jinyou,Wen Zhu,et al.Iraq petroleum geology and exploration potential[M].Beijing:Petroleum Industry Press,2011.
    [5]
    Ehrenberg S N,Aqrawi A A M,Nadeau P H,et al.An overview of re-servoir quality in producing Cretaceous strata of the Middle East[J].Petroleum Geoscience,2008,14(4):307-318.
    [6]
    Sadooni F N.Stratigraphic and lithological characteristics of Upper Cretaceous carbonates in central Iraq[J].Journal of Petroleum Geology,1996,19(3):271-288.
    [7]
    周文,郭睿,伏美燕,等.伊拉克艾哈代布油田白垩系生物铸模孔及体腔孔发育的灰岩储层特征及成因分析[J].岩石学报,2014,30(3):813-821. Zhou Wen,Guo Rui,Fu Meiyan,et al.Characteristics and origin of Cretaceous limestone reservoir with bio-moldic pore and intrafossil pore,in AHDEB oilfield,Iraq[J].Acta Petrologica Sinica,2014,30(3):813-821.
    [8]
    边海光,田作基,童晓光,等.伊拉克哈法亚油田可采储量增长因素和潜力分析[J].新疆石油地质,2014,35(4):486-490. Bian Haiguang,Tian Zuoji,Tong Xiaoguang,et al.Analysis of the influencing factors of reserves growth and the potential of Halfayah oilfield in Iraq[J].Xinjiang Petroleum Geology,2014,35(4):486-490.
    [9]
    Owen R M S,Nasr S N.Stratigraphy of the Kuwait-Basra area[M]//Weeks L G.Habitat of oil.Tulsa:AAPG,1958:1252-1278.
    [10]
    van Bellen R C,Dunnington H V,Wetzel R,et al.Lexique stratigraphique,interntional[J].Asie Iraq,1959,3:10.
    [11]
    Buday T.The regional geology of Iraq:Stratigraphy and paleogeography[M].:State Organization,1980.
    [12]
    Aqrawi A A M.Carbonate-siliciclastic sediments of the Upper Cretaceous (Khasib,Tanuma and Sa'di formations) of the Mesopotamian Basin[J].Marine and Petroleum Geology,1996,13(7):781-790.
    [13]
    Al-Sakini J A.Summary of petroleum geology of Iraq and the Middle East[M].Kirkuk:Northern Oil Company Press,1992.
    [14]
    Aqrawi A A M,Thehni G A,Sherwani G H,et al.Mid-Cretaceous rudist-bearing carbonates of the Mishrif Formation:An important reservoir sequence in the Mesopotamian Basin,Iraq[J].Journal of Petroleum Geology,1998,21(1):57-82.
    [15]
    Aqrawi A A M,Goff J C,Horbury A D,et al.The petroleum geo-logy of Iraq[M].Beaconsfield,Bucks:Scientific Press,2010.
    [16]
    Mahdi T A,Aqrawi A A M.Sequence stratigraphic analysis of the Mid-Cretaceous Mishrif Formation,southern Mesopotamian basin,Iraq[J].Journal of Petroleum Geology,2014,37(3):287-312.
    [17]
    Flügel E.Microfacies of carbonate rocks:Analysis,interpretation and application[M].Berlin:Springer,2004.
    [18]
    Almutury W G,Al-Asadi M M.Tectonostratigraphic history of mesopotamian passive margin during Mesozoic and Cenozoic,South Iraq[J].Journal of Kirkuk University-Scientific Studies,2008,3(1):31-50.
    [19]
    Al-Qayim B.Sequence stratigraphy and reservoir characteristics of the Turonian-Coniacian Khasib formation in central Iraq[J].Journal of Petroleum Geology,2010,33(4):387-403.
    [20]
    Sadooni F N.The nature and origin of Upper Cretaceous basin-margin rudist buildups of the Mesopotamian Basin,southern Iraq,with consideration of possible hydrocarbon stratigraphic entrapment[J].Cretaceous Research,2005,26(2):213-224.
    [21]
    Dunham R J.Classification of carbonate rocks according to depositional textures[M]//Classification of carbonate rocks:A symposium.New York:AAPG,1962:108-121.
    [22]
    Mazzullo S J.Facies and burial diagenesis of a carbonate reservoir:Chapman Deep (Atoka) field,Delaware Basin,Texas[J].AAPG Bulletin,1981,65(5):850-865.
    [23]
    鲁国明.济阳坳陷碳酸盐岩油藏储层评价及有效厚度研究[J].石油实验地质,2011,33(2):155-159. Lu Guoming.Reservoir evaluation and effective pay thickness study of carbonate reservoir in Jiyang Depression,Bohai Bay Basin[J].Petroleum Geology & Experiment,2011,33(2):155-159.
    [24]
    Davies R B,Casey D M,Horbury A D,et al.Early to mid-Cretaceous mixed carbonate-clastic shelfal systems:Examples,issues,and models from the Arabian Plate[J].GeoArabia,2002,7(3):541-598.
    [25]
    Bernaus J M,Masse P.Carinoconus iraqiensis (Foraminifera),a new orbitolinid from the Cenomanian Mishrif Formation of the oil fields of southeastern Iraq[J].Micropaleontology,2006,52(5):471-476.
    [26]
    范嘉松.世界碳酸盐岩油气田的储层特征及其成藏的主要控制因素[J].地学前缘,2005,12(3):23-30. Fan Jiasong.Characteristics of carbonate reservoirs for oil and gas fields in the world and essential controlling factors for their formation[J].Earth Science Frontiers,2005,12(3):23-30.
    • Relative Articles
    • Supplements(0)
    • Cited By
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索
    Citation
    XML
    PDF-CN

    Article Metrics

    Article views (1454) PDF downloads(1152) Cited by()
    Proportional views
    Related

    Website Copyright © Wuxi Research Institute of Petroleum Geology, SINOPEC 苏ICP备15009037号 苏公网安备32021102000780号

    Address：No. 2060, Lihu Avenue, Wuxi, Jiangsu   (214126) Tel：0510-68787204，68787203 Fax：0510-68787113 Email：sysydz.syky@sinopec.com

    Supported by: Beijing Renhe Information Technology Co. Ltd    

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return