西峰油田长8低渗致密储层微观特征
详细信息    查看全文 | 推荐本文 |
  • 英文篇名:Microscopic Characteristics of Chang 8 Low Permeability Tight Reservoir in Xifeng Oilfield
  • 作者:代金友 ; 李建霆 ; 任茜莹 ; 穆中奇
  • 英文作者:DAI Jin-you;LI Jian-ting;REN Qian-ying;MU Zhong-qi;College of Petroleum Engineering,China University of Petroleum (Beijing);Second Oil Production Plant PetroChina Changqing Oilfield Company;
  • 关键词:鄂尔多斯盆地 ; 西峰油田 ; 长8低渗致密储层 ; 微观特征
  • 英文关键词:Ordos Basin;;Xifeng oilfield;;Chang 8 low permeability tight reservoir;;microscopic characteristics
  • 中文刊名:KXJS
  • 英文刊名:Science Technology and Engineering
  • 机构:中国石油大学(北京)石油工程学院;中国石油长庆油田分公司第二采油厂;
  • 出版日期:2019-06-08
  • 出版单位:科学技术与工程
  • 年:2019
  • 期:v.19;No.485
  • 基金:国家科技重大专项(2008ZX05009-004-03)资助
  • 语种:中文;
  • 页:KXJS201916017
  • 页数:8
  • CN:16
  • ISSN:11-4688/T
  • 分类号:123-130
摘要
油田开发的重心在储层,储层认识的核心在微观特征。利用铸体薄片、粒度分析、X衍射、压汞和物性测试等化验资料,系统研究了西峰油田长8低渗致密储层微观特征,分析了储层低渗致密原因。结果表明:(1)长8储层由中-细粒岩屑长石砂岩(占62%)和长石岩屑砂岩(占38%)构成,三端元组分中石英平均含量31. 5%、长石含量29. 7%、岩屑含量27. 6%;(2)岩石填隙物平均含量11. 2%,其中绿泥石及铁方解石最为发育,占填隙物总量66%;(3)孔隙以粒间孔(占62. 6%)和溶孔(占34. 2%)为主、喉道呈片状和弯片状,平均孔径51μm、中值喉道半径0. 17μm,孔喉组合为细孔-小喉型;(4)长8储层成分成熟度低、填隙物含量高、孔喉细小以及较为强烈的成岩作用是导致储层低渗致密的主要原因。研究成果深化了低渗致密储层地质认识,为西峰油田深入开发提供参考,并对类似油田储层微观特征研究提供借鉴。
        The focus of oilfield development is in the reservoir and the core of reservoir recognition is microcosmic characteristics. Based on cast thin section,grain size analysis,X-ray diffraction,mercury intrusion and physical property test,the microscopic characteristics of Chang 8 low permeability tight reservoir in Xifeng oilfield were systematically studied,and the causes of low permeability tight reservoir were analyzed. The results indicate as follows.(1) Chang 8 reservoir is composed of medium-fine grained lithic feldspathic sandstone( 62%) and feldspathic lithic sandstone( 38%). The average content of quartz,feldspar and cuttings in the three-terminal component is31. 5%,29. 7% and 27. 6%,respectively.(2) The average content of rock interstitial substance is 11. 2%,among which chlorite and iron calcite are the most developed,accounting for 66% of the total amount of interstitial substance;(3) The pores are mainly intergranular pores( 62. 6%) and dissolved pores( 34. 2%). The throat is lamellar and curved,with an average pore diameter of 51μm and a median throat radius of 0. 17 μm. The pore-throat combination is of fine pore-small throat type.(4) Analysis shows that the low maturity of Chang 8 reservoir composition,high content of interstitial materials,small pore throat and relatively strong diagenesis are the main reasons for low permeability and tight reservoir. The research results deepen the understanding of reservoir geology,provide reference for the further development of Xifeng oilfield,and provide reference for the study of reservoir micro-characteristics of similar oilfields.
引文
1冯增昭.沉积岩石学[M].北京:石油工业出版社,1993Feng Zengzhao. Sedimentary petrology[M]. Beijing:Petroleum Industry Press,1993
    2 符浩,李国蓉,王冬娅,等.塔东地区寒武系碳酸盐岩成岩作用及储层成因机理[J].科学技术与工程,2016,16(7):18-26Fu Hao,Li Guorong,Wang Dongya,et al. The carbonate diagenesis and formation mechanism of the reservoir of Cambrian in East Tarim Basin[J]. Science Technology and Engineering,2016,16(7):18-26
    3 魏铁军,阮宝涛,郭建林,等.长岭气田登娄库组沉积相研究[J].特种油气藏,2009,16(2):21-22Wei Tiejun,Ruan Baotao,Guo Jianlin,et al. Sedimentary facies study of Denglouku formation in Changling gas field[J]. Special Oil and Gas Reservoirs,2009,16(2):21-22
    4 门吉华.长岭断陷登娄库组成岩作用及储层评价[J].特种油气藏,2011,18(3):24-26Men Jihua. Diagenesis and reservoir evaluation of the formation in the Changling fault depression[J]. Special Oil&Gas Reservoir,2011,18(3):24-26
    5 胡望水,徐博,刘浩,等.扶余油田中城区扶余油层沉积微相及其沉积模式[J].石油地质与工程,2012,26(5):5-9Hu Wangshui,Xu Bo,Liu Hao,et al. Sedimentary microfacies and sedimentary model of Fuyu reservoir in Zhongcheng district of Fuyu oilfield[J]. Petroleum Geology and Engineering,2012,26(5):5-9
    6华强,田世澄,成燕,等.文13东油藏储层特征及物性影响因素分析[J].科学技术与工程,2013,13(29):8579-8584Hua Qiang,Tian Shicheng,Cheng Yan,et al. Research of diagenesis influence on the physical properties in Eastern Wen 13 block[J].Science Technology and Engineering,2013,13(29):8579-8584
    7 张启贤,王红亮.鄂尔多斯东南部延长组致密油储层微观特征及主控因素[J].科学技术与工程,2016,16(34):52-63Zhang Qixian,Wang Hongliang. Microscopic characteristics and main controlling factors of tight oil reservoir of Yanchang formation in Southeastern Ordos Basin,China[J]. Science Technology and Engineering,2016,16(34):52-63
    8 付文耀,刘春武,刘丽丽,等.鄂尔多斯盆地胡尖山油田延长组长6_1储层特征及控制因素分析[J].石油天然气学报,2011,33(7):45-49Fu Wenyao,Liu Chunwu,Liu Lili,et al. Reservoir characteristics and controlling factors of Chang 6_1 reservoir in Hujianshan Oilfield,Ordos Basin[J]. Journal of Petroleum and Natural Gas,2011,33(7):45-49
    9 郎咸国,秦启荣,白立业.四川盆地通南巴构造飞三段储层研究[J].石油天然气学报,2010,32(6):359-362Lang Xianguo,Qin Qirong,Bai Liye. Reservoir study of Fei3 member of Tongnanba structure in Sichuan Basin[J]. Journal of Petroleum and Natural Gas,2010,32(6):359-362
    10 姜艳娇,孙建孟,高建申,等. X区块低孔渗气藏储层特征及分类评价研究[J].科学技术与工程,2017,17(10):164-172Jiang Yanjiao,Sun Jianmeng,Gao Jianshen,et al. Study on reservoir characteristics and classification evaluation in low porosity and low permeability gas reservoir of X block[J]. Science Technology and Engineering,2017,17(10):164-172
    11 张晟,陈德友,黎华继,等.新场气田须二段储层的分类与评价[J].石油天然气学报,2011,33(4):25-28Zhang Sheng,Chen Deyou,Li Huaji,et al. Classification and evaluation of reservoirs in Xu 2 member of Xinchang gas field[J]. Journal of Petroleum and Natural Gas,2011,33(4):25-28
    12 杨友运,张蓬勃,张忠义.鄂尔多斯盆地西峰油田长8油组辫状河三角洲沉积特征与层序演化[J].地质科技情报,2005,24(1):45-48Yang Youyun,Zhang Pengbo,Zhang Zhongyi. Sedimentary features and sequence evolution of braided river delta of Chang-8 Oil Formation of Xifeng oilfield in Ordos Basin[J]. Geological Science and Technology Information,2005,24(1):45-48
    13 司学强,张金亮.西峰油田长8油组沉积相与油气分布规律[J].西南石油大学学报(自然科学版),2008,30(6):67-71Si Xueqiang,Zhang Jinliang. Sedimentary facies and hydrocarbon distribution law in Chang-8 reservoirs of Xifeng oilfield[J]. Journal of Southwest Petroleum University(Science&Technology Edition),2008,30(6):67-71
    14 薛永超,程林松.西峰油田长8油层组成岩储集相研究[J].石油天然气学报,2010,32(6):6-10Xue Yongchao,Cheng Linsong. Study on diagenetic reservoir facies of Chang-8 reservoir in Xifeng oilfield[J]. Journal of Oil and Gas Technology,2010,32(6):6-10
    15 于波,南珺祥,张忠义.鄂尔多斯盆地西峰油田长8储层的砂岩成岩作用[J].兰州大学学报(自然科学版),2007,43(6):13-17Yu Bo,Nan Junxiang,Zhang Zhongyi. Sandstone diagenesis of Chang-8 reservoir in Xifeng oilfield of Ordos Basin[J]. Journal of Lanzhou University(Natural Sciences),2007,43(6):13-17
    16 冯杨伟,孙卫,屈红军,等.西峰油田合水区块长8岩性油藏流动单元划分[J].断块油气田,2011,18(2):223-227Feng Yangwei,Sun Wei,Qu Hongjun,et al. Flow unit classification of Chang-8 lithologic oil reservoir in Heshui district of Xifeng oilfield[J]. Fault-Block Oil&Gas Field,2011,18(2):223-227
    17 田建锋,刘池阳,张昕,等.西峰油田西41井区特低渗油藏油水分布规律[J].西北大学学报(自然科学版),2012,42(5):794-800Tian Jianfeng,Liu Chiyang,Zhang Xin,et al. The water-oil distribution of super-low permeability reservoirs in Xi-41 well region of Xifeng oilfield[J]. Journal of Northwest University(Natural Science Edition),2012,42(5):794-800
    18 黄思静,谢连文,张萌,等.中国三叠系陆相砂岩中自生绿泥石的形成机制及其与储层孔隙保存的关系[J].成都理工大学学报(自然科学版),2004,31(3):273-281Huang Sijing,Xie Lianwen,Zhang Meng,et al. Formation mechanism of authigenic chlorite and its relation to preservation of porosity in nonmarine Triassic reservoir sandstones,Ordos Basin and Sichuan Basin,China[J]. Journal of Chengdu University of Technology(Science&Technology Edition),2004,31(3):273-281