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苏德尔特油田兴安岭油层层序格架内储层非均质性及储层评价
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摘要
针对苏德尔特油田兴安岭油层断层复杂、地层厚度变化大、储层连续性较差、物性变化快、非均质性强等地质特征和开发现状,综合应用各种勘探开发资料,以高分辨率层序地层学、沉积学、储层地质学和开发地质学等理论和技术为指导,完成苏德尔特油田兴安岭油层高分辨率层序地层划分、沉积微相、物性特征、层序格架内非均质性和油水分布特征研究,并对储层进行分类评价,为油田调整挖潜提供了依据。论文主要成果和认识如下:
     (1)建立工区高分辨率层序地层格架,将兴安岭油层划分为3个长期旋回、13个中期旋回。以中期旋回格架为约束,将主要含油层系划分为26个小层,为储层精细描述奠定了基础。
     (2)通过岩心观察、沉积背景和沉积特征分析,认为苏德尔特油田为近源、快速、水下、水动力较强、弱氧化-弱还原的沉积环境,储集砂体以扇三角洲前缘水下分流河道、水道侧缘溢岸、席状砂、远砂坝为主。砂体分布受层序位置和沉积微相控制,处于中期旋回转换面附近的砂体厚度大、物性好。贝16块和贝14块砂体分布稳定,厚度和连通性比贝28块好。建立了孔、渗解释模型,认为兴安岭油层为中、低孔隙度,特低渗、超低渗储层,具有随深度增加孔、渗逐渐变差的趋势。在埋深1600~1800m范围内,存在次生孔隙发育带,带内孔、渗相对较大。
     (3)在层序格架内分析了储层的非均质性特征。苏德尔特油田层内发育泥质夹层,分布不稳定,层内渗透率变异系数大部分在2左右,层内非均质性中等-强;平面上砂体迁移频繁,砂体叠置关系复杂、横向连通较差;层间隔层稳定性差,局部井区缺失了封隔能力,层间渗透率变异系数均大于0.7,为强非均质。层序格架内基准面旋回决定了储层的非质性,短期旋回控制储层层内非均质性,存在:①物性向上变好,②物性向上变差,③物性变化不大,④物性向上变好复变差等4种非均质模式。中、长期旋回决定平面和层间非均质性,处于中、长期旋回转换面附近,砂体分布范围大,厚度大、物性好;处于中、长期旋回水泛面附近,砂体呈孤立状分布,厚度小,物性差。中期旋回内处于基准面低位处,砂体厚度大,颗粒粗,物性好;处于基准面高位处,砂体厚度小,颗粒细,物性差,造成层间非均质性。
     (4)孔隙类型以原生、次生孔隙为主,存在微裂缝。以孔隙缩小型、缩颈型喉道为主,为小喉道储层。粘土矿物总含量都在10%以上,水敏性强。
     (5)油藏分布受构造控制,油藏分布在大断裂上升盘的断块、断鼻等构造圈闭内,整体表现为上油下干(水)。采用“权重法”,以小层为单元将兴安岭储层分为3类,处于中期旋回转换面附近一类储层发育,二、三类储层也呈连片状分布。
     通过研究,形成了一套复杂断块油藏精细地层对比、非均质性研究及储层评价的研究思路和技术方法,对苏德尔特油田兴安岭油层改善开发效果,提高采收率有较好的指导意义,对同类油藏的开发具有重要的借鉴作用。
Considering the geological characteristics of fault complexity, variable stratigraphic thickness, bad continuity of reservoir, quick variability of physical property, strong heterogeneity and development circumstance of Xinganling Reservoir in Sudeerte oil-field, applying different exploration and development data, guided by the theory and technology of high resolution sequence stratigraphy, sedimentology, reservoir geology and development geology, high resolution sequence stratigraphic correlation, sediment micro-facies, physical properties, heterogeneity under sequence frame, distribution of oil and reservoir assessment had been studied. All this provided references for adjusting development in the oil-field. The main results of this dissertation are listed as follows:
     (1) Referred to the research of the previous stratigraphic correlation, Xinganling Reservoir can be divided into 3 long-term cycle and 13 middle-term cycle. In order to finely study reservoir, 26 subzone may be divided under confined middle-term cycle in main oil-bearing series.
     (2) Near source, fast, underwater, strong hydropower and weak oxidation to weak deoxidation environment can be judged from core observation, sedimentary background and characteristics during the depositional stage of Xinganling Reservoir. Reservoir sand bodies are mainly underwater branch river channel, natural dike, crevasse splay, sand sheet and distal bar. The distributions of sand bodies are controlled by the location in the sequence stratigraphy and sedimentary micro-facies, so the thickness of sand bodies is high near the transform of middle-term cycle. The sand bodies of Bei16 and bei14 block are more stable, thicker and more connective than Bei28’s. Porosity and permeability models were built and the reservoir is middle-low porosity, too low permeability based on the interpretation result. Porosity and permeability are becoming small with increasing depth, but during the depth of 1600-1800m there is a secondary porosity zone. Porosity and permeability are good in the secondary porosity zone.
     (3) Heterogeneity of reservoir could be analyzed under sequence frame. Muddy interbeds are not stable in Sudeerte oil-field and heterogeneity in the sand body is middle or strong. For example, permeability variation coefficient in the sand body is mainly at 2.The sand bodies often moved, complicatedly superimposed and badly connected. Barrier beds is not stable and in some area there is not muddy interbeds. Heterogeneity between sand bodies is strong and permeability variation coefficient are all over 2. Base level cycles under sequence frame control the reservoir heterogeneity. Short-term cycle controls reservoir heterogeneity in sand bodies and there are 4 models, such as upward favorableness, upward disadvantage, upward favorableness again disadvantage and upward no large change model. Long and middle term cycles control intrabed and plan heterogeneity. Near transform surfaces sandbodies are in great distribution, high thickness and good physical properties, on the other hand, near flood surfaces sandbodies are isolated distribution, in low thickness and bad physical properties.
     (4) Pore forms are mainly original and secondary and sometimes micro-fissure. Throats mainly are pore reduction and necking type and the diameters of throats are small. The clay content is over 10% in reservoir, so the velocity sensibility is strong.
     (5)The structure controls the distribution of reservoirs, reservoirs are located in fault blocks in upthrows of big faults, oil in the upper part and water in the lower part generally. Applied assessment method of multi-parameter, Xinganling reservoirs were classified 3 types by subzones and the first type of subzones are mostly located near the base levels of middle-term cycles.
     This study suggested a way of research and technological methods by fine stratigraphic correlation, heterogeneity and reservoir assessment on complicated fault block reservoir. This technology is very effective to improve the development and recovery for Xinganling reservoir and also very helpful for the similar reservoir development.
引文
[1]朱筱敏,康安,王贵文.陆相坳陷型和断陷型湖盆层序地层样式探讨[J].沉积学报.2003,21(2):283-287
    [2]刘泽荣,信荃麟,王伟锋等著.油藏描述原理与方法技术.北京:石油工业出版社,1993
    [3]王志章,石占中.现代油藏描述技术.北京:石油工业出版社,1999
    [4]王允城,吕运能,曹伟著.气藏精细描述.成都:四川科学技术出版社,2002
    [5]沈平平,宋新民,曹宏著.现代油藏描述新方法.北京:石油工业出版社,2003
    [6]邓宏文,王红亮,祝永军等.高分辨率层序地层学—原理及应用[M].北京:地质出版社,2002
    [7]郑荣才,吴朝容,叶茂才等.浅谈陆相盆地高分辨率层序地层研究思路[J].成都理工学院学报,2000,27(3):241~244
    [8]彭军,陈景山,郑荣才等.百色盆地百岗组高分辨率层序分析及研究意义[J].地球学报2002,23(2): 153-158.
    [9]尹太举,张昌民,李中超等.层序地层学在油田开发中的应用实践[J].沉积学报,2005,23(4):664-673
    [10] L.L.Sloss.Sequence in the cratonic interior of North America.GSA Bulletin,1963,74:93~113[22] C. K.威尔格斯等编,徐怀大等译.层序地层学原理.北京:石油工业出版社,1993
    [11]蔡希源,李思田.陆相盆地高精度层序地层学.北京:地质出版社,2003
    [12] Vail P R,Mitchum R M,Todd R G,et al. Seismic stratigraphy and global changes of sea level In Payton C E.Seismic stratigraphy-application of hydrocarbon exploration.AAPG Memoir,1977,(26):49~212[51] Schumm S. A. River response to base level change:Implication for sequence stratigraphy.The Journal of Geolog,1993,101(2):279~294
    [13]顾家裕,邓宏文等.层序地层学及其在油气勘探开发中的应用论文集.北京:石油工业出版社,1997
    [14]徐怀大主编,从地震地层学到层序地层学.北京:石油工业出版社,1997
    [15] W.E.Galloway.Genetic stratigraphic sequences in basin analysis I:architecture and genesis of flooding-surface bounded deposiional units.AAPG Bulletin,1989a,73(2):125~142
    [16] W.E.Galoway,Genetic stratigraphic sequences in basin analysis II:application to northwest Gulf of Mexico Cenozoic basin.AAPG Bulletin,1989b,73(2):143~154
    [17] Brown A R,Dahm C G,Graebner R J. A stratigraphic case history using three-dimensional seismic data in the Gulf of Thailand.Geophysical Prospecting,1981,29(3):327~349
    [18] A.H. Ruffell,N.R. Moles,J. Parnell. Characterisation and prediction of sediment-hosted ore deposits using sequence stratigraphy. Ore Geology Reviews,1998,12:207~223
    [19] A.R. Orpin,P.R. Gammon,T.R. Naish,R.M. Carter.Modern and ancient Zygochlamys delicatula shellbeds in New Zealand,and their sequence stratigraphic implications. Sedimentary Geology,1998,122:267~284
    [20] Andre Strasser,Bernard Pittet,et al. Depositional sequences in shallow carbonate-dominated sedimentary systems:concepts for a high-resolution analysis.Sedimentary Geology, 1999, 128:201~221
    [21] Eschard R. Geological factors controlling sediment transport from platform to deep basin: a review Marine and Petroleum Geology,2001,18(4):487~490
    [22] Galloway W E. Silicicalstic slope and base of slope depositional systems:component facies, stratigraphic architecture, and classification.AAPG Bulletin,1998,82(4):569~595
    [23] Germanosk D.,Schumm S.A. Changes in braided river morphology resulting from aggradation anddegradation.The Journal of Geology,1993,101(4):451~466
    [24] Henry W. Posamentier. Lowstand alluvial bypass systems:Incised vs. Unincised. AAPG,2001,85(10):1771~1793.
    [25] Stow D A V,Mayall M. Deep-water sedimentary systems:Now models for the 21st century.Marine and Petroleum Geology,2000,17(2):125~135
    [26] T. Geel. Recognition of stratigraphic sequences in carbonate platform and slope deposits:empirical models based on microfacies analysis of Palaeogene deposits in southeastern Spain.Palaeogeography,Palaeoclimatology,Palaeoecology,2000,155:211~238
    [27] Wan Yang,Michelle A. Kominz. Characteristics,stratigraphic architecture,and time framework of multi-order mixed siliciclastic and carbonate depositional sequences,outcropping Cisco Group (Late Pennsylvanian and Early Permian), Eastern Shelf, north-central Texas, USA.Sedimentary Geology,2002,154:53~87
    [28]樊太亮,吕延仓等.层序地层中的陆相储层发育规律.地学前缘,2000,7(4):315~321
    [29]冯有良,李思田.东营凹陷砂三段层序低位域砂体沉积特征.地质论评,2001,47(3):278~286
    [30]冯有良,邱以钢.高精度层序地层学在济阳坳陷下第三系隐蔽油气藏勘探中的应用.石油学报,2003,24(1):49~52
    [31]姜秀芳,宗国洪,郭玉新等.断裂坡折带低位扇成因及成藏模式.石油与天然气地质,2002,23(2):143~155
    [32]魏魁生,郭占谦.松辽盆地白垩系高分辨率层序地层格架.石油与天然气地质,1997,18(1):7~14
    [33]魏魁生,徐怀大,雷怀玉,等.非海相层序地层学—以松辽盆地为例.北京:地质出版社,1996,6~45
    [34]魏魁生,徐怀大.华北典型箕状断陷盆地层序地层学模式及其与油气赋存关系.地球科学—中国地质大学学报,1993,18(2):139~149
    [35]吴朝容,郑荣才.辽河油田西部洼陷砂河街组高分辨率层序地层学特征.成都理工学院学报,1999,26(4):375~381
    [36]袁选俊,薛良清,池英柳,等.坳陷型湖盆层序地层特征与隐蔽油气藏勘探——以松辽盆地为例.石油学报,2003,24(3):11~15
    [37]郑荣才,文华国,梁西文.鄂尔多斯盆地上古生界高分辨率层序地层分析.矿物岩石,2002,22(4):66~74
    [38]姜在兴,操应长.砂体层序地层及沉积学研究—以山东惠民凹陷为例.北京:地质出版社,2000
    [39]刘招君.湖盆层序地层学术语体系及模式—以松辽盆地西部斜坡区为例.长春地质学院学报.1997,27(11):57~62
    [40] Xue Liangqing and Galloway W.E. Genetic sequence stratigraphic framework,depositional style, and hydrocarbon occurrence of the Upper Cretaceous QYN formations in the Songliao lacustrine basin,norheastern China.AAPG Bulletin,1993,77(10):1792~1808
    [41]国景星.陈家庄地区馆陶组高分辨率层序分析及沉积微相研究[J].石油大学学报(自然科学版), 2005,29(2):1~6
    [42]陈景山,彭军,周彦等.基准面旋回层序与油层单元划分关系[J].西南石油大学学报,2007, 29(2) :62~166
    [43]王居峰.东营三角洲—浊积扇高频层序叠加样式与岩性圈闭[J].沉积学报, 2005,23 (2): 303~339
    [44]郑荣才,彭军,彭光明等.高分辨率层序分析在油藏开发工程中的应用—以百色盆地仑35块那二段油藏为例[J].沉积学报,2003,21(4):654~703
    [45] Cross T.A, Lessenger MA. Sediment Volume Partitioning: Rationale for Stratigraphic Model Evaluation and High-Resolution Stratigraphic Correlation [R].Accepted for Publication in Norwegian
    [46]孟元林,高建军,刘德来等.渤海湾盆地西部凹陷南段成岩相分析与优质储层预测[J].沉积学报,2006,24(2):185~192
    [47]杨晓萍,赵文智,邹才能等.低渗透储层成因机理及优质储层形成与分布[J].石油学报,2007, 28(4):57~61
    [48]王新民,,郭彦如,付金华等.鄂尔多斯盆地延长组长8段相对高孔渗砂岩储集层的控制因素分析[J].石油勘探与开发, 2005,32(2):35~38
    [49]王端平,柳强.复杂断块油田精细油藏描述[J].石油学报,2000,21(6):111~117
    [50]朱东亚等.临南油田隔层类型划分及其分布规律研究[J].地球科学—中国地质大学学报, 2004, 29(2):211~219
    [51]李广超,刘大锰,车遥.双河油田扇三角洲前缘沉积微相特征及剩余油分布[J].石油天然气学报(江汉石油学院学报),2006,28(2):7~10
    [52]陈波,李孝军.油田开发阶段砂岩储集层横向对比及预测方法[J].石油勘探与开发,2000,27(1):95~98
    [53]冯方,牟泽辉,张克银等.测井资料在吐哈盆地温米油田储集层描述中的应用[J].石油勘探与开发,2000,27(1):98~103
    [54]胡忠贵,朱忠德,李相明等.沉积微相对储层物性控制作用的定量评价—以英台地区青山口组、泉头组四段I砂组为例[J].油气地质与采收率,2004,11(4):4~7
    [55]高辉,宋广寿,孙卫等.储层特低渗透成因分析与评价—以安塞油田沿25区块为例[J].地球科学进展,2007,22(11):1134~1140
    [56]曹树春.储集层精细描述的新思路[J].地质科技情报,2001,20(1):39~43
    [57] Xue Liangqing and Galloway W.E. Genetic sequence stratigraphic framework,depositional style, and hydrocarbon occurrence of the Upper Cretaceous QYN formations in the Songliao lacustrine basin,norheastern China.AAPG Bulletin,1993,77(10):1792~1808
    [58]李思田,林畅松,解习农,等.大型陆相盆地层序地层学研究.地学前缘,1995,2(3~4):133~136
    [59] Shanley K.W,et al.PersPectives on the sequence stratigraphy of continental strata AAPG,1994,78(4):544~568
    [60]邓宏文,王红亮,祝永军.高分辨率层序地层学——原理及应用.北京:地质出版社,2002
    [61]邓宏文,王洪亮.层序地层基准面的识别、对比技术及应用.石油与天然气地质,1996,17(3):177~184
    [62]邓宏文.美国层序地层研究中的新学派:高分辨率层序地层学.石油与天然气地质,1995,16(2):89~97
    [63]顾家裕.陆相盆地层序地层学格架概念及模式.石油勘探与开发,1995,22(4):6~10
    [64]王洪亮,邓宏文.地层基准面原理在湖相储层预测中的应用.石油与天然气地质,1997,18(2):96~102
    [65]徐怀大.陆相层序地层学研究中的某些问题.石油与天然气地质,997,18(2):33~38
    [66]徐怀大.如何推动我国层序地层学迅速发展.地学前缘,1995,3(4):103~113
    [67]张文昭.中国陆相盆地油气勘探实践.北京:石油工业出版社,1993
    [68]池英柳,张万选,张厚福等.陆相断陷盆地层序成因初探.石油学报.1996,17(3):19~26
    [69]顾家裕.陆相盆地层序地层学格架概念及模式.石油勘探与开发.1995,22(4)
    [70]魏魁生,徐怀大,雷怀玉,等.非海相层序地层学—以松辽盆地为例.北京:地质出版社,1996,6~45
    [71]邓宏文,王洪亮.层序地层基准面的识别、对比技术及应用.石油与天然气地质,1996,17(3):177~184
    [72]邓宏文.美国层序地层研究中的新学派:高分辨率层序地层学.石油与天然气地质,1995,16(2):89~97
    [73]郑荣才,彭军,吴朝容.陆相盆地基准面旋回的级次划分和研究意义.沉积学报,2002,19(2):249~255
    [74]樊太亮,吕延仓等.层序地层中的陆相储层发育规律.地学前缘,2000,7(4):315~321
    [75]樊太亮,李庆谋.沉积基准面变化分析技术及其应用.石油与天然气地质,1997,18(2):108~114
    [76]樊太亮,李卫东.层序地层应用于陆相油藏预测的成功实例.石油学报,1999,20(2):12~19
    [77]邓宏文.美国层序地层研究中的新学派—高分辨率层序地层学.石油天然气地质. 1995, 16(2): 90~97
    [78] Cross T.A, Baker MR, Chapin MA, etal. Applications of high-resolution sequence stratigraphy to reservoir analysis. In: EschardR, Doligez B, eds. Reservoir characterization from outcrop investigations: Proceedings of the 7th Exploration and Production Research Conference. Paris: Techniq, 1993. 11~33
    [79]尹太举,张昌民,李中超,等.濮城油田沙三中层序格架内储层非均质性研究.石油学报, 2003, 25 (5): 74~78
    [80]尹太举,张昌民,李中超,等.濮城油田沙三中6-10砂组高分辨率层序地层研究.沉积学报, 2003, 21 (4): 663~669
    [81]尹太举,张昌民依据高分辨率层序地层学进行剩余油分布预测.石油勘探与开发, 2001, 28(4): 79~82
    [82]邓宏文,王洪亮,宁宁.沉积物体积分配原理—高分辨率层序地层学的理论基础.地学前缘, 2000, 7(4): 305~313
    [83]郑荣才,彭军,吴朝容.陆相盆地基准面旋回的级次划分和研究意义.沉积学报, 2001, 19(2): 249~255
    [84]郑荣才,尹世民,彭军.基准面旋回结构与叠加样式的沉积动力学分析.沉积学报, 2000, 18 (3): 369~375
    [85]邓宏文,王洪亮,李熙喆.层序地层地层基准面的识别、对比技术及应用.石油与天然气地质, 1996, 17(3): 177~184
    [86] Luiz J. Tomazelli, Sérgio R. Dillenburg. Sedimentary facies and stratigraphy of a last interglacial coastal barrier in south Brazil. Marine Geology, Volume 244, Issues 1-4, 8 October 2007, Pages 33-45
    [87] Claudio Di Celma, Gino Cantalamessa. Sedimentology and high-frequency sequence stratigraphy of a forearc extensional basin: The Miocene Caleta Herradura Formation, Mejillones Peninsula, northern Chile Sedimentary Geology, Volume 198, Issues 1-2, 15 May 2007, Pages 29~52
    [88]陈春强,张亚中,吴丽艳等.安棚油田扇三角洲沉积微相特征与油气分布[J].新疆石油地质,2005,26(5):529~532
    [89]杨华,田景春,夏青松等.短期基准面旋回叠加样式与储层物性变化模式关系研究—以陇东地区三叠系延长组长6-长8油层组为例[J].成都理工大学学报(自然科学版),2004,31(5):478~483
    [90]刘延莉,邱春光,樊太亮等.华池油田长33低渗油藏流动单元研究[J].沉积与特提斯地质,2006,26(3):51~55
    [91]樊太亮,高志前,刘聪等.塔里木盆地古生界不同成因斜坡带特征与油气成藏组合[J].地学前缘(中国地质大学(北京);北京大学),2008,15(2):127~136
    [92] Cross T. A. Stratigraphic controls on reservoir attributes in continental strata[J].地学前缘,2000, 7( 2) : 321~350.
    [93]李江涛,李增学,郭建斌等.高分辨率层序地层分析中基准面变化的讨论[J].沉积学报,2005,23(2):297~302
    [94]杨华,田景春,夏青松等.短期基准面旋回叠加样式与储层物性变化模式关系研究—陇东地区三叠系延长组长6-长8油层组为例[J].成都理工大学学报(自然科学版),2004,31(5)478~83
    [95]孙致学,凌庆珍,邓虎成等.高分辨率层序地层学在油田深度开发中的应用,石油学报,2008,29(2):239~46
    [96]靳松,朱筱敏,钟大康.基准面旋回对储层宏观非均质性的控制—以胡状集油田沙三中6—8油层组为例[J].西安石油大学学报(自然科学版),2005,20(3)48~54
    [97]陈均亮,吴河勇,朱德丰等.海拉尔盆地构造演化及油气勘探前景[J].地质科学,2007,42(1):147~159
    [98]方少仙,侯方浩编著.石油天然气储层地质学.东营:石油大学出版社,2006
    [99]姚光庆,蔡忠贤编著.油气储层地质学原理与方法.武汉:中国地质大学出版社,2005
    [100]王允诚编著.油气储层地质学.北京:地质出版社,2008
    [101]裘亦楠,薛叔浩等编著.油气储层评价技术.北京:石油工业出版社,1997

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