Reservoir characteristics and influencing factors of Weizhou Formation in eastern Maichen Sag, Beibuwan Basin: A case study of reservoir XW6
-
摘要: 利用岩石铸体薄片鉴定、扫描电镜分析、X射线衍射分析等测试手段,以XW6油藏为例,对北部湾盆地迈陈凹陷东部涠洲组储层的岩石学特征、物性及孔隙结构特征及影响储层物性的主控因素进行了分析。结果表明,涠洲组储层物性总体较差,涠二段砂岩储层颗粒较细,分选中—差,以中孔—中低渗—中细喉类储层为主,储层物性相对较好;涠三段砂岩储层颗粒较粗,分选差,以特低孔、低孔—超低渗、低渗—细微喉类储层为主,储层物性相对较差。影响储层物性的因素有:压实作用是导致储层物性变差的主要原因;油气充注对溶蚀孔隙的形成和孔渗空间的保存起到了较好的作用;相同埋深情况下,沉积微相和岩石类型对储层的物性起着重要的控制作用。Abstract: The lithologic characteristics, physical properties, pore structure and their controlling factors of the XW6 reservoir in the Weizhou Formation in the eastern Maichen Sag were studied based on thin section observations, scanning electron microscopy and X-ray diffraction analysis. The physical propertiesof the Weizhou Formation aregenerally poor with the second member featuring fine grain size, medium-poor sorting, medium porosity, medium-low permeability and medium-narrow throat diameters. The third member has coarse grain size, poor sorting, ultra-low porosity, super-low permeability and microthroat diameters, indicating less favorable physical properties.The controlling factors for physical propertieswere summarized as follows. Compaction made the physical propertiesof the reservoir become worse. Hydrocarbon filling was beneficial for the generation of dissolved pores and the preservation of porosity and permeability. Sedimentary micro-facies and rock type played a very important role in reservoir physical properties.
-
Key words:
- reservoir properties /
- diagenesis /
- reservoir space /
- dissolution /
- Weizhou Formation /
- Maichen Sag /
- Beibuwan Basin
-
[1] 陈伟,刘宏宇,侯峰,等.迈陈凹陷东部构造特征及其对油气成藏的影响[J].复杂油气藏,2013,6(1):17-21. Chen Wei,Liu Hongyu,Hou Feng,et al.Tectonic characteristics and their impacts on hydrocarbon accumulation in Eastern Maichen Sag[J].Complex Hydrocarbon Reservoirs,2013,6(1):17-21. [2] 陈长征,陈伟,吴峰,等.北部湾盆地迈陈凹陷东部构造物理模拟研究[J].石油实验地质,2014,36(4):516-522. Chen Changzheng,Chen Wei,Wu Feng,et al.Structural physical simulation research of eastern Maichen Sag,Beibuwan Basin[J].Petroleum Geology & Experiment,2014,36(4):516-522. [3] 张佰涛,唐金炎,王文军,等.北部湾盆地北部坳陷构造—沉积特征及其演化[J].海洋石油,2014,34(2):7-12. Zhang Baitao,Tang Jinyan,Wang Wenjun,et al.Characteristics of tectonic sedimentary evolution in northern depression of Beibuwan Basin[J].Offshore Oil,2014,34(2):7-12. [4] 胡望水,吴婵,梁建设,等.北部湾盆地构造迁移特征及对油气成藏的影响[J].石油与天然气地质,2011,32(6):920-927. Hu Wangshui,Wu Chan,Liang Jianshe,et al.Tectonic transport characteristics and their influences on hydrocarbon accumulation in Beibuwan Basin[J].Oil & Gas Geology,2011,32(6):920-927. [5] 李春荣,张功成,梁建设,等.北部湾盆地断裂构造特征及其对油气的控制作用[J].石油学报,2012,33(2):195-203. Li Chunrong,Zhang Gongcheng,Liang Jianshe,et al.Characteristics of fault structure and its control on hydrocarbons in the Beibuwan Basin[J].Acta Petrolei Sinica,2012,33(2):195-203. [6] 李媛,王华,刘恩涛,等.北部湾盆地福山凹陷层序地层格架下油气藏分布规律与控制因素[J].中南大学学报:自然科学版,2014,45(5):1542-1554. Li Yuan,Wang Hua,Liu Entao,et al.Distribution regularities and control factors for reservoir formation within sequence stratigraphic framework in Fushan Sag,Beibuwan Basin[J].Journal of Central South University:Science and Technology,2014,45(5):1542-1554. [7] 宋刚练,席敏红,张萍,等.北部湾盆地涠西南凹陷油气成藏特征研究[J].地质与勘探,2012,48(2):415-420. Song Ganglian,Xi Minhong,Zhang Ping,et al.Hydrocarbon accumulation characteristics in the Weixinan Sag,Beibu Gulf Basin[J].Geology and Exploration,2012,48(2):415-420. [8] 杨海长,梁建设,胡望水.乌石凹陷构造特征及其对油气成藏的影响[J].西南石油大学学报:自然科学版,2011,33(3):41-46. Yang Haizhang,Liang Jianshe,Hu Wangshui.Structural features and impacts on hydrocarbon accumulation in Wushi Sag[J].Journal of Southwest Petroleum University:Science & Technology Edition,2011,33(3):41-46. [9] 袁冰,杨希冰,张迎朝.源下油气成藏主控因素与成藏模式:以北部湾盆地乌石凹陷乌石17X下始新统流沙港组三段油藏为例[J].科学技术与工程,2014,14(30):23-27. Yuan Bing,Yang Xibing,Zhang Yingchao.Main Controlling factor of hydrocarbon accumulation under source rock and pool-forming pattern:a case study of the field of early Eocene third member of Liushagang Formation in Wushi Sag,Beibu Gulf Basin[J].Science Technology and Engineering,2014,14(30):23-27. [10] 龚晓峰,何家雄,刘菊,等.南海北部北部湾盆地迈陈凹陷中南部X井油气成藏地质条件[J].海洋地质前沿,2014,30(4):7-13. Gong Xiaofeng,He Jiaxiong,Liu Ju,et al.Geological conditions for hydrocarbon accumulation:a case from well X in southern central part of Maichen Sag of Beibuwan Basin[J].Marine Geology Frontiers,2014,30(4):7-13. [11] 陈善斌,甘华军,时阳,等.北部湾盆地福山凹陷烃源岩地球化学特征及地质意义[J].油气地质与采收率,2015,22(1):14-19,25. Chen Shanbin,Gan Huajun,Shi Yang, et al.Geochemical features and geologic significance of source rocks in Fushan sag,Beibuwan Basin[J].Petroleum Geology and Recovery Efficiency,2015,22(1):14-19,25. [12] 王苗,黄传炎,左宗鑫,等.同沉积生长断层的控砂作用研究:以北部湾福山凹陷永安—白莲地区流沙港组一段为例[J].石油实验地质,2014,36(2):194-199. Wang Miao,Huang Chuanyan,Zuo Zongxin,et al.Controls of synsedimentary faults on sedimentary filling of 1st member of Liushagang Formation in Yongan-Bailian areas in Fushan Sag,Beibuwan Basin[J].Petroleum Geology & Experiment,2014,36(2):194-199. [13] 范蕊,李水福,何生,等.涠西南凹陷烃源岩地球化学特征及油源对比[J].石油实验地质,2014,36(2):238-244. Fan Rui,Li Shuifu,He Sheng,et al.Geochemical characteristics of source rocks and oil-source correlation in Weixinan Sag,Beibuwan Basin[J].Petroleum Geology & Experiment,2014,36(2):238-244. [14] 岳绍飞,刘杰,马丽娜,等.福山凹陷流沙港组三段储层四性关系及有效厚度下限标准[J].油气地质与采收率, 2013, 20(4):42-45. Yue Shaofei,Liu Jie,Ma Lina, et al.Study on reservoir four-property relations and effective thickness lower limit in third member of Liushagang formation, Fushan sag[J]. Petroleum Geology and Recovery Efficiency, 2013, 20(4):42-45. [15] 陈刚,林良彪,王威,等.元坝地区须家河组砂岩成岩作用与孔隙演化[J].石油实验地质,2014,36(4):405-410,415. Chen Gang,Lin Liangbiao,Wang Wei,et al.Diagenesis and porosity evolution of sandstones in Xujiahe Formation,Yuanba area[J].Petroleum Geology & Experiment,2014,36(4):405-410,415. [16] 周晓峰,牛小兵,王建国,等.陇东油区长8含油砂岩成岩过程中的孔隙度演化[J].科技导报,2014,32(12):41-47. Zhou Xiaofeng,Niu Xiaobing,Wang Jianguo,et al.Porosity evolution during diagenesis of oil-bearing sandstone in Chang 8 of Longdong oil-producing region[J].Science & Technology Review,2014,32(12):41-47. [17] 刘杰,孙美静,岳绍飞,等.福山凹陷花场-白莲地区流沙港组成岩作用及储层物性影响因素[J].油气地质与采收率, 2013, 20(2):21-24, 29. Liu Jie, Sun Meijing, Yue Shaofei, et al. Analysis of diagenesis and major controlling factors on reservoir quality of the Liushagang formation in Huachang-Bailian area, Fushan depression, Beibuwan basin[J]. Petroleum Geology and Recovery Efficiency, 2013, 20(2):21-24, 29. [18] 尤丽,李伟,李才,等.琼东南盆地宝岛区深埋藏储层物性主控因素[J].特种油气藏,2014,21(3):37-40. You Li, Li Wei, Li Cai, et al.Main factors affecting physical properties of deep burial reservoir in Baodao area of Southeast Hainan Basin[J].Special Oil & Gas Reservoirs,2014,21(3):37-40. [19] 高永利,王 勇,孙 卫.姬塬地区长4+5低渗储层成岩作用与孔隙演化[J].特种油气藏,2014,21(1):68-72. Gao Yongli,Wang Yong,Sun Wei.Diagenesis and pore evolution process of Chang4+5 low permeability reservoir in Jiyuan area[J].Special Oil & Gas Reservoirs,2014,21(1):68-72. [20] 黄方方,丁晓琪,万友利,等.张家垛油田阜三段储层成岩作用[J].断块油气田,2013,20(2):150-153. Huang Fangfang,Ding Xiaoqi,Wan Youli,et al.Diagenesis of Fu 3 Member reservoir in Zhangjiaduo Oilfield[J].Fault-Block Oil & Gas Field,2013,20(2):150-153. [21] 钟大康,漆立新,云露,等.塔里木盆地塔河油田石炭系卡拉沙依组砂岩储层特征与物性控制因素[J].地球科学与环境学报,2013,35(1):48-55. Zhong Dakang,Qi Lixin,Yun Lu,et al.Reservoir characteristics and controlling factors on physical properties of sandstones in Kalashayi Formation of Carboniferous from Tahe Oilfield of Tarim Basin[J].Journal of Earth Sciences and Environment,2013,35(1):48-55. [22] 朱毅秀,杨程宇,陈明鑫,等.安塞油田杏河区长6储层成岩作用及对孔隙的影响[J].特种油气藏,2013,20(3):51-55. Zhu Yixiu,Yang Chengyu,Chen Mingxin,et al.Diagenesis of chang 6 reservoirs of Xinghe area in Ansai Oilfield and its influence on reservoir pores[J].Special Oil & Gas Reservoirs,2013,20(3):51-55. [23] 吕成福,陈国俊,张功成,等.珠江口盆地白云凹陷珠海组碎屑岩储层特征及成因机制[J].中南大学学报:自然科学版,2011,42(9):2763-2773. Lü Chengfu,Chen Guojun,Zhang Gongcheng,et al.Reservoir cha-racteristics of detrital sandstones in Zhuhai formation of Baiyun sag,Pearl River Mouth Basin[J].Journal of Central South University:Science and Technology,2011,42(9):2763-2773. [24] 操应长,陈林,王艳忠,等.东营凹陷民丰北带古近系沙三段成岩演化及其对储层物性的影响[J].中国石油大学学报:自然科学版,2011,35(5):6-13. Cao Yingchang,Chen Lin,Wang Yanzhong,et al.Diagenetic evolution of Es3 reservoir and its influence on property in the northern Minfeng sub-sag of Dongying sag[J].Journal of China University of Petroleum:Edition of Natural Science,2011,35(5):6-13. [25] 宋国奇,刘鹏,刘雅利.渤南洼陷沙河街组四段下亚段成岩作用与储层孔隙演化[J].沉积学报,2014,32(5):941-948. Song Guoqi,Liu Peng,Liu Yali.Diagenesis and reservoir porosity evolution of the lower section of the 4th member of Shahejie Formation in Bonan Sag[J].Acta Sedimentologica Sinica,2014,32(5):941-948.
点击查看大图
计量
- 文章访问数: 1000
- HTML全文浏览量: 155
- PDF下载量: 1129
- 被引次数: 0