西湖凹陷平湖构造带平湖组砂岩储层特征及其主控因素

doi:10.11743/ogg20130207

Abstract

Abstract:

Based on comprehensive analysis of various data such as core observation,casting thin sections,scanning electron microscope,physical property analysis,mercury penetration and production test,we studied the characteristics and the main controlling factors of the sandstone reservoirs in the Pinghu Formation of Pinghu tectonic belt in Xihu depression.The results show that the reservoir rocks are dominated by feldspathic quartz sandstone with good sorting and roundness,moderate compositional maturity and high texture maturity.The reservoir is characterized by low porosity and low permeability or moderate porosity and moderate permeability,as well as a good correlation between porosity and permeability.The pores are dominated by intergmular dissolution pores and relic primary intergmular pores,the pore throats are mainly of necking throat,laminated throat and curved lamellar throat,and the pore-throat assemblages are dominated by moderate pore-coarse throat.The main controlling factors of reservoir development in the research region were studied in respects of sedimentary facies,diagenesis and abnormal high pressure.Sedimentary facies is one of the main factors controlling the reservoir quality.The sandstone reservoirs of delta plain distributary channel facies are the best in physical properties,followed by delta front underwater distributary channel facies.Compaction and cementation are destructive to reservoir physical property,while dissolution is constructive to reservoir physical property as it can generate secondary porosity.The existence of abnormal high pressure is also constructive to reservoir physical property,for it is helpful to the preservation of the original intergranular pores and to the improvement of dissolution of the early carbonate cement,resulting in intergranular dissolution pores and improving the reservoir physical properties.

Key words: abnormal high pressure, sedimentary facies, diagenesis, reservoir characteristics, Pinghu Formation, Pinghu tectonic belt, Xihu Depreesion

CLC Number:

TE121.2

Hu Mingyi, Shen Jiao, Hu Die. Reservoir characteristics and its main controlling factors of the Pinghu Formation in Pinghu structural belt,Xihu Depression[J]. Oil & Gas Geology, 2013, 34(2): 185-191.

References

[1] 胡芬,叶加仁,刘俊海.东海西湖凹陷平湖构造带油气运聚特征[J].海洋地质与第四纪地质,2003,23(1):95-102. Hu Fen,Ye Jiaren,Liu Junhai.Characteristics of oil and gas migration and accumulation in the Pinghu structural belt,Xihu depression,East China Sea[J].Marine Geology & Quaternary Geology,2003,23(1):95-102.
[2] 刘书会,王宝言,刘成鑫.西湖凹陷平湖地区平湖组沉积相的再认识[J].油气地质与采收率,2009,16(3):1-3. Liu Shuhui,Wang Baoyan,Liu Chengxin.The recognition about sedimentary facies in Pinghu formation of Pinghu region[J].Petroleum Geology and Recovery Efficiency,2009,16(3):1-3.
[3] 舒艳,胡明毅,蒋海军,等.西湖凹陷西部斜坡带储层成岩作用及孔隙演化[J].海洋石油,2011,31(4):63-67. Shu Yan,Hu Mingyi,Jiang Haijun,et al.Diagenesis and reservoir porosity evolution of Western Slope Zone of Xihu Sag[J].Offshore Oil,2011,31(4):63-67.
[4] 赵丽娜,陈建文,张银国,等.东海西湖凹陷平湖构造带平湖组沉积特征[J].世界地质,2008,27(1):42-47. Zhao Lina,Chen Jianwen,Zhang Yinguo,et al.Sedimentary characteristics of Pinghu Formation in Pinghu structural belt of Xihu depression,East China Sea[J].Global Geology,2008,27(1):42-47.
[5] 刘双莲,李浩,周小鹰.大牛地气田大12—大66井区沉积微相与储层产能关系[J].石油与天然气地质,2012,33(1):45-49 Liu Shuanglian,Li Hao,Zhou Xiaoying.Relationship between sedimentary microfacies and reservoir productivity in Da12-Da66 wellblock,Daniudi gas field[J].Oil & Gas Geology,2012,33(1):45-49.
[6] 李文浩,张枝焕,昝灵,等.渤南洼陷北部陡坡带沙河街组砂砾岩有效储层物性下限及其主控因素[J].石油与天然气地质,2012,33(5):766-777. Li Wenhao,Zhang Zhihuan,Zan Ling,et al.Lower limits of physical properties and their controlling factors of effective coarse-grained clastic reservoirs in the Shahejie Formation on northern steep slope of Bonan subsag,the Bohai Bay Basin[J].Oil & Gas Geology,2012,33(5):766-777.
[7] 李凤杰,王多云,徐旭辉.鄂尔多斯盆地陇东地区三叠系延长组储层特征及影响因素分析[J].石油实验地质,2005,27(4):365-370. Li Fengjie,Wang Duoyun,Xu Xuhui.The influential factors and characteristics of Triassic Yanchang Formation reservior in Longdong area,Ordos Basin[J].Petroleum Geology & Experiment,2005,27(4):365-370
[8] 王金鹏,彭仕宓,史基安,等.鄂尔多斯盆地陇东地区长6—长8段储层特征及其主控因素[J].新疆地质,2008,26(2):163-166. Wang Jinpeng,Peng Shimi,Shi Ji'an,et al.Reservior characteristics and its main controlling factors of Chang6-Chang8 formation in Longdong,Ordos basin[J].Xinjiang Geology,2008,26(2):163-166.
[9] 罗文军,彭军,杜敬安,等.川西坳陷须家河组二段致密砂岩储层成岩作用与孔隙演化——以大邑地区为例[J].石油与天然气地质,2012,33(2):287-295. Luo Wenjun,Peng Jun,Du Jing'an,et al.Diagenesis and porosity evolution of tight sand reservoirs in the 2^nd member of Xujiahe Formation,western Sichuan Depression:an example from Dayi region[J].Oil & Gas Geology,2012,33(2):287-295.
[10] 张建培,葛和平,漆滨汶.西湖凹陷砂岩自生高岭石发育特征及其对储层物性的影响[J].海洋石油,2009,29(1):1-8. Zhang Jianpei,Ge Heping,Qi Binwen.Characteristics of authigenic kaolinite in sandstones of Xihu Sag and it's impact on reservoir physical properties[J].Offshore Oil,2009,29(1):1-8.
[11] 张建培,葛和平.西湖凹陷古近系及新近系储层砂岩自生高岭石分布特征及形成机制[J].中国海上油气,2008,20(6):362-366. Zhang Jianpei,Ge Heping.Authigenic kaolinite distribution and origin in Paleogene and Neogene reservoir sandstones in Xihu sag[J].China Offshore Oil and Gas,2008,20(6):362-366.
[12] 赵俊兴,黄德才,罗媛,等.鄂尔多斯盆地南部长6段储层成岩作用特征[J].天然气工业,2009,29(3):34-37. Zhao Junxing,Huang Decai,Luo Yuan,et al.Diagenetic features of reservoirs in the Chang-6 member,south Ordos basin[J].Natural Gas Industry,2009,29(3):34-37.
[13] 张先平,张树林,陈海红,等.东海西湖凹陷平湖构造带异常压力与油气成藏[J].海洋地质与第四纪地质,2007,27(3):93-97. Zhang Xianping,Zhang Shuli,Chen Haihong,et al.Abnormal pressure and related reservoir formation in the Pinghu structural belts of Xihu depression,East China Sea[J].Marine Geology & Quaternary Geology,2007,27(3):93-97.
[14] 叶加仁,顾惠荣.东海西湖凹陷油气系统特征及勘探评价[J].天然气工业,2004,24(8):8-12. Ye Jiaren,Gu Huirong.Characteristics and exploration evaluation of the petroleum systems in Xihu depression of East China Sea[J].Natural Gas Industry,2004,24(8):8-12.
[15] 张先平,陈海红.东海西湖凹陷温压系统与油气成藏[J].海洋地质与第四纪地质,2008,28(2):87-91. Zhang Xianping,Chen Haihong.Geotemperature-pressure systems and related reservoir formation in the Xihu sag,East China Sea[J].Marine Geology & Quaternary Geology,2008,28(2):87-91.

Reservoir characteristics and its main controlling factors of the Pinghu Formation in Pinghu structural belt,Xihu Depression

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