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红岗油田大208区块黑帝庙油层精细油藏研究
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摘要
红岗油田是松辽盆地南部最重要的产油区之一。红岗油田东邻松南最好的生油凹陷-大安凹陷,位于红岗阶地有利构造部位。红岗油田大208区浅层主要储集层黑帝庙油层,油藏类型以断层、微幅构造、岩性等隐蔽油气藏为主,储层主要以复杂的低渗透率的河流三角洲储层为主,储层横向连续性较差,油水分布极其复杂,开发稳产期短,综合含水率不断上升,层间矛盾日益突出,开采难度不断增大,面临这稳产增产的难题。为指导黑帝庙油层开发中后期调整工作,提高油藏开发效果,非常有必要进一步认识区块内部构造、油层分布特征、储层非均质性、剩余储量分布,为合理制定开发调整方案、正确选择开采方式提供依据。
     本论文针对红岗油田大208区黑帝庙油层物性差、厚度薄、非均质严重等地质特征,综合运用层序地层学、沉积学、石油地质学、储层地质学及油藏工程学等多学科的理论和方法,借助Petrel地质建模软件,应用随机建模的方法建立了红岗油田大208区黑帝庙油层三维精细地质模型,从而客观真实的反映了地质地质情况,为高效合理的开发该油藏奠定了基础。
     研究成果及主要认识有:
     通过高分辨率层序地层学方法和传统旋回厚度对比方法的有机结合,将研究区黑帝庙油层进一步细分为3个小层,10个单砂体,建立和完善了研究区单井及井间高分辨率层序地质格架,克服了以往小层对比中厚度控制、界限穿时的局限性,使小层对比划分更趋科学合理。
     采用取心相和测井相分析相结合的方法,将储层划分为水下分流河道微相、河口坝、远砂坝、前缘席状砂、水下溢岸砂、分支间湾等7种微相。其中水下分流河道和河口坝为主要的储集体。从沉积微相的演化及各时期沉积微相特征看来,研究区各微相呈自西向东展布,河道发育稳定,在每一期次的演化中有较好的继承性,H2-2a、H2-1a、H2-2b层砂岩发育较好,砂体基本连片,厚度较大,是主力储层。
     储层层间非均质性研究表明,黑帝庙油层发育3套稳定隔层,进而划分为3套开发层系。建立了单砂层夹层分布模型,对油层实际注水开发将具有一定的指导意义。平面非均质性研究表明,研究区所有单砂体均为强非均质性储层,结合各单砂体属性分布,发现所有单砂层均为低孔中渗层。表明研究区红岗非均质较强,对油田注水开发产生不利影响。
     在基础地质研究基础上,借助Petrel地质建模软件,建立了红岗油田大208区黑帝庙油层三维精细地质模型,对该油藏的构造、砂体展布、孔渗饱等属性参数空间分布特征有了更直接的认识,为下一步动态数值模拟奠定了基础,通过地质评价和开发区的储量计算验证该模型符合该区地质情况,可靠程度较高。
Honggang oilfield is one of the most important oil-producing areas in Southern SongliaoBasin, which is located in the favorable structural position of Honggang terrace and on theeast of Da’an petroleum generative depression.There are different subtle reservoirs in theHeidimiao reservoir at Da208block whith is in the sallow layer of Songliao Basin, such asfault reservoirs, microtectonics reservoirs and lithologic reservoirs. The complex lowpermeability river delta reservoirs developed here have poor lateral continuity and complexfluid distribution. Short production plateau,high composite water cut, serious interformationalcontradiction and difficult development are recent problems. A better understanding of the theinternal properties, such as structures, reservoir distribution, reservoir anisopism andremaining reserves distribution, is important to enhancing the effect of the mid to latedevelopment of Heidimiao reservoir and the reasonable development program.
     For Heidimiao reservior’s features of poor geophysical properties, thin thickness andhigh anisotropism at Da208block of Honggang oilfield, the accurate3D geological model ofHeidimiao reservoir is built, synthetically depending on high resolution sequence stratigraphy,sedimentology, petroleum geology, reservoir geology and reservoir engineering etc., by meansof stochastic modeling with the software of PETREL geological modeling. So it is objectivelytruly to reflect the geological conditions of the underground, laying the foundation foreffectively developing the reservoir reasonable.
     The results of research and main view:
     Combining high resolution sequence stritigraphy with traditional method of stratacorrelating for using cyclothem thickness correlation, the Heidimiao reservoir is divided into3sublayers and10single sand bodies futher. The strata framewok between wells isestablished and accomplished. Overcoming the limit in the correlation of thickness control,interfaces traversing time, the sublayer correlation is more reasonable.
     Combining the facies of core with the well log facies,the reservoir is divided into7microfacies: subaqueous distributary channel facies, mouth bar facies, distal bar facies, frontsheet sand facies, overbank sand facies and distributary interchannel facies.Among thesemicrofacies, the sands of subaqueous ditributary channel and mouth bar are the main reservoirbodies. From the microfacies’ evolution features and the characteristics of microfacies in eachperiod, the microfacies are distributed from west to east. The sands of subaqueous distributarychannel are distributed in the west with high successiveness. Sands in the single sand bodies of H2-2a, H2-1a, H2-2b are developed, and the sands form a sheet with thick thickness, arethe main reservoirs.
     The findings of reservoir interlayer anisotropism show that Heidimiao reservoir developsthree stable interlayaers and can be divided into three layer series of development. The singlesand bodies’ intercalations distribution model is established, which will have a guiding role inreservior’s waterflood development. Plane anisotropism study shows that all single sandbodies are strong anisotropism reservoir. Combining all single sand bodies geophysicalproperties, find all single sand bodies have low porosity and middle permeability. The stronganisotropism has high impact on the waterflood development.
     After the study of geological modeling theories, methods and softwares, set up the3Dgeological model of Heidimiao reservoir at Da208block in Honggang oilfield by usingPETREL, reveal the3D distribution character of the research area’ structure, sand body,porosity, permeability, and oil saturation, and become the base of dynamic digital modeling inthe tuture. The3D geological model is in line with the area’s geological conditions and hashigher reliability, by the validation of geological evaluation and reserve calculation.
引文
[1]王志章,扬金华.低幅度构造油藏描述与预测[M].北京:石油工业出版社,1999:20~50.
    [2]沈平平,宋新民,曹宏著.现代油藏描述新方法[M].北京:石油工业出版社,2003:2~70.
    [3]王志章,石占中.现代油藏描述技术[M].北京:石油工业出版社,1999:2~85.
    [4]裘怿楠.石油开发地质文集[C].北京:石油工业出版社,1997:2~20.
    [5]申本科,胡永乐,田昌炳.油藏描述技术发展与展望[J].石油勘探与开发,2003,30(4):78~81.
    [6]Tobaias H.D. Payenberg Dennis R. Braman and Andrew D. Miall Depositionalenvironments and stratigraphic of the Late Cretaceous Milk River and Eagle formation,southern Alberta and north-central Montana: relationships to shallow biogenic gas Bulletin ofCanadian Petroleum Geology2003Vol.51.NO2:155~176.
    [7] T. A. Cross.M.A. lesssenger Sediment volume partitioning: rational for stratigraphic modelevaluation and high-resolution statigraphic correlation. Accepted for publication inNorwegian petroleum-forening conference volume “Predictive High-Resolution SequenceStratigraphy”, July,1996:155~176.
    [8]Cross, T. A Application of high-resolution sequence stratigraphy to reservoir analysis.Subsurface Reservoir Characterization from outcrop observation: Proceedings of the7thExploration and Production Reserach Conference: Paris, Technip:11~13.
    [9]Per Kent Pedersen et al. High resolution sequence stratigraphic architecture of atransgressive coastal succession: Albian Bow Island Formation, southwestern Alberta Bulletinof Canadian Petroleum Geology Vol.50. NO.4(December,2003):441~477.
    [10]K. W. Shadey et al. Perspective on the sequence stratigraphy of continental strata[J].AAPG Bulletin,1994,74(4):544~568.
    [11]赵澄林,朱平,陈方鸿.高邮凹陷高分辨率层序地层学及储层研究[M].北京:石油工业出版社,2001:2~50.
    [12]尹太举,张昌民,赵红静,等.依据高分辨率层序地层学进行剩余油分布研究[J].石油勘探与开发,2001,28(4):79~82.
    [13]Hearn C J et al. Geological factors infucencing reservoir performance of the HartzogDraw Field, Wyoming[J].JPT,36(9):1335~1344.
    [14]窦之林.储层流动单元研究[M].北京:石油工业出版社,2000:2~50.
    [15]郭燕华,熊琦华,吴胜和,等.陆相储层流动单元的研究方法[J].北京:石油大学学报,1999,23(6):66~69.
    [16]孙健评,徐学品,孙继伟,等.双河油田开发后期流动单元划分[J].新疆石油地质,1999,20(2):154~157.
    [17]Ebanks W J Jr. Flow unit concept-integrated approcach to reservoir description forengineering projects[J]. AAPG Annnual Metting,AAPG Bulletion,1984:155~176.
    [18]Guangming Ti et al. Use of flow units as a tool for reservoir description:a case study, SPEFormation Evalution,199(6):155~176.
    [19]Rodringuez A, Maraven S A. Facies moding and the flow unit concept as asedimentlogical tool in reservoir description. a case study, SPE18~154.
    [20]J. C. Van Wagoner et al. Siliciclastic sequence stratigraphy in well logs, cores andoutcrops:concepts for high-resolution correlation of time and facies. AAPG Methods inExploration Series7,1990:155~176.
    [21]曾文冲.油气藏储集层测井评价技术[M].北京:石油工业出版社,1991:2~50.
    [22]霍进.四维地震技术在稠油开采中的应用[J].石油勘探与开发,2001,28(6):80~82.
    [23]陈尊德.储层地震属性优化方法[M].北京:石油工业出版社,1998:2~50.
    [24]王家华,张团峰.油气储层随机建模[M].北京:石油工业出版社,2001:2~50.
    [25]吴胜和,金振奎.储层建模[M].北京:石油工业出版社,1999:2~50.
    [26]陈蓉,张传宝,杨卫东,等.三位可视化技术在吉和油田开发中的应用.石油勘探与开发,2001,28(6):87~88.
    [27]A. J. Rosa and R. N. Horne Reservoir Description by Well-Test Analysis by Use of CyclicFlow-Rate Variation SPE Formation Evaluation, December1997:247~254.
    [28] Dennis Denney. A New Approach for Reservoir Characterization[J]. JPT,2003, Volume55:62~63.
    [29]J. L. Cairns, L. D. Feldkamp.3D Visualization for Improved Reservoir CharacterizationSPE Computer Application JUN.1993:155~176.
    [30]An Interactive3D-Mesh Builder for Fluid-Flow Reservoir Simulation SPE ComputerApplication JUN.1993:155~176.
    [31]隋军,吕晓光.大庆油田河流-三角洲相储层研究[M].北京:石油工业出版社,2000:2~50.
    [32]Cross T A. Controls on coal distribution in trensgressive-regresive cycles, UpperCretaceous, Westermn Interior, USA[A]. In: Wilgus C K,Hastings B S, Kendall C G St C, etal.Sea-level changes: an integrated approach[C].SEPM Special Publication,1988,42:293~308.
    [33]Cross T A, Homewood P W. Amanz Gressly's role in founding modemstrati-gmphy[J].Geological Society of American Bulletin,1997,109:1617~1630.
    [34]Cross T A, Lessenger M A.Construction and application of a stratigraphic inversemodel[A]. In: Harbaugh J W, Watney W L, Rankey E C, etc. Numerical experimentsinstratigraphy: recent advances in stratigraphic and sedim-entologic computersimulations
    [C].SEPM Special Publication,1999,62:69~83.
    [35] van Wagoner J C, Mitchum R M, Campion K M, et al. Siliciclastic sequence stratigraphyin well, cores and outcrops-concept for high-resolution correlation of times andfacies[J].AAPG Methods in Exploration Series,1990,(7):1~55.
    [36]Galloway W E. Genetic Stratigraphic Sequences in Basin anailsis1: architectureandgenesis of flooding-surface bounded depositional units. AAPG, A989,73(2):125~142.
    [37]纪友亮,张世奇,等.层序地层学原理及层序成因机制模式[M].地质出版社,1998.[2]:91~115.
    [38]顾家裕,张兴阳.陆相层序地层学进展与在油气勘探开发中的应用[J].石油与天然气地质,2004,25(5):484~490.
    [39]焦翠花,王海更,牛玉杰,等.塔里木盆地哈得4油田东河砂岩层层序地层界面类型及测井识别方法[J].石油与天然气地质,2007,28(1):69~76.
    [40]薛良清.层序地层学研究现状、方法与前景[J].石油勘探和开发,1995,22(5):8~13.
    [41]魏魁生,徐怀大,叶淑芬.松辽盆地白垩系高分辨率层序地层格架[J].石油与天然气地质,1997.18(1):7~14.
    [42]王东坡,刘立,张立平,等.松辽盆地白垩纪古气候沉积旋回层序地层[M].吉林大学出版社,1995:17~28.
    [43]韩殿杰,孙新波.松辽盆地下白垩统层序地层格架及油气勘探方向[J].石油与天然气地质,1995,16(4):384~389.
    [44]张运东.塔里木盆地西南坳陷第三系层序地层研究[J].石油勘探和开发,1999,26(3)11~14.
    [45]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.沉积学报,2005,23(4):664~671.
    [46]刘丁曾,王启民,李伯虎.大庆多层砂岩油田开发[M].石油工业出版社,1996:155~176.
    [47]刘波,赵翰卿,于会宇.储集层的两种精细对比方法讨论[J].石油勘探与开发,2001,28(6):55~58.
    [48]Friend P F, Slater M J, Williams R C. Vertical and lateral buildings of river sandstonebodies, EbroBasin Spain[J]. JGeoSocLondon,1979,136:39~46.
    [49]Hamlin H S, et al. Depositional controls on reservoir properties in a braid-delta sandstone,Tirrawarraoi Field, South Australia[J]. AAPG Bulletin,1996,80(2):139~156.
    [50]Jordan D W, Pryar W A. Hierarchical levels of heterogeneity in a Mississippi RiverMeander Beltand application to reservoir systems[J]. AAPG Bulletin,1992,10:1601~1624.
    [51]Miall A D. Architectural-element analysis: a new method of facies analysis applied tofluvial deposits[J]. Earth sci Rew,1985,22:261~308.
    [52]裘亦楠.沉积方式与碎屑岩储层的层内非均质性[J].石油学报,1985,6(1):41~49.
    [53]杜春艳,郑荣才.陕北长6油层组短期基准面旋回与储层非均质性的关系[J].成都理工学院学报,1999,26(1):17~22.
    [54]Soares Amilcar. Sequential indicator simulation with correction for localprobabilities[J].Mathematical Geology,1998,30(6):761~765.

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