用户名: 密码: 验证码:
敖包塔、葡萄花油田扶余油层储层综合评价
详细信息    本馆镜像全文|  推荐本文 |  |   获取CNKI官网全文
摘要
本文综合应用储层微观系列测试技术,结合储层宏观研究,对松辽盆地中央坳陷大庆长垣南部敖包塔、葡萄花油田扶余油层开展了储层综合评价研究。确定了区内主要储集砂体为三角洲前缘的水下分流河道微相砂体;岩石类型以岩屑长石砂岩和长石岩屑砂岩为主;成岩作用包括对储集空间起建设作用的溶解作用和起破坏作用的压实作用、胶结交代作用,成岩阶段处于中成岩阶段的A_2亚期;胶结类型以孔隙式胶结为主,局部砂岩呈接触式胶结,部分区域砂岩由于化学压溶作用而呈镶嵌式胶结;本区砂岩成分成熟度较低,结构成熟度中等;区内扶余油层的孔隙度介于10%~15%之间,渗透率在0.1~10×10~(-3)μm~2,整体属于低孔低渗—特低渗储层。确定出本区岩性、物性、电性及含油性下限标准,本区油层岩性下限为粉砂级,物性下限标准:有效孔隙度下限为9%,渗透率下限为0.1×10~(-3)μm~2;电性下限标准:深感应视电阻率≥12.0Ω·m,声波时差≥72μs/ft;含油性下限为油浸。
     本次将研究区砂岩组的储层相对类型划分为四类:Ⅰ类储层为好储层(相当于低渗透储层);Ⅱ类储层为较好储层(相当于特低渗透储层);Ⅲ类储层为差储层(相当于超低渗透储层);Ⅳ类储层为非有效储层(相当于非渗透储层)。F_Ⅰ油组储层较F_Ⅱ油组发育,对比而言,扶余油层Ⅰ类储层和Ⅱ类储层比较发育,Ⅲ类储层分布范围很小,不存在Ⅳ类储层。
The structure of Aobaota and Putaohua oilfield is tretyi structure - Putaohua and Aobaota structure which is situated in the south of Daqing placanticline of center concave in Songliao basin,and with Taipingtun anticline structure in the north,Aonan nosing structure in the south,Sanzhao concave in the east,Gulong concave in the west,which is in the areas of 840 square kilometers.The western of Daing placanticline is precipitous,and its east is smooth.The dip of the rock stratum is more and more big from top to bottom.The thickness of the rock stratum gets thinner from two wings to crown and its lithologic character is more and more coarse.The target of this research is Fuyu Oil Layer,which is a part of the Third and Fourth Member of the Quantou formation of Lower Crataceous.The lithologies in this area mainly consist of siltstone,fine sandy siltstone,silty fine sandstone and fine sandstone. Fuyu oil layer has a good regional cap rock,a good oil source rock of the first section of Qingshankou Formation in its topping.
     On the basis of regional geological background and petroleum geological condictions of study area,by means of detailed observation of ten exploration wells cored interval about rock type,grain feature,primary sedimentary structure,sedimentary rhythm,fossil organism assemble,clay mineral feature and so on,associating well logging data of sixty-five exploration wells,single well sediment microfacies was divided in the proportion of 1:100. Shallow delta sedimentary facies is recognized,and more two sedimentary subfacies of delta plain and delta front.Delta plain contains five microfacies of water distributary channel, water interchannel,water levee,water crevasse splay and flood plain,and delta front contains four microfacies of underwater distributary channel,water interchannel,underwater levee and underwater crevasse splay,and established commensurable facies model. According to single well sediment microfacies and each sand unit sediment evolution regular pattern,distributary channel grit is the main growing origin sand body,and is divided into water and underwater distributary channel.They display reteporiform shape in plane, north-south approximately and north-northeast in the whole,east-west approximately and northwest-west in portion.From F_Ⅲto F_Ⅰ,the depocencer migrates from west to southeast, and the sedimentary water was enlarging inch by inch.Water sedimentary was developed in F_Ⅲ,its host sand is water distributary channel sand;water sedimentary was developed in the east below of F_Ⅱ,and its west is underwater;underwater is the important part in F_Ⅰ,and its host sand is underwater distributary channel sand.
     Using the methods such as thin-section identify,fractional analysis,scanning electron microscopy,X-diffraction,describing reservoir characteristic of Fuyu Oil Layer subtly.The studied area's sandstone is mainly composed with lithic arkose and feldspathic litharenite. The interstitial materials are mainly clay minerals and carbonate cement.The common clay minerals in this area are illite,kaolinite,chlorites,illite and smectite mixed lays.The clay minerals transformation is mainly in the second rapid stage.The carbonate cement are mainly calcite.Compositional maturity of the rock is lower,and texture maturity is moderate. Grain size grade is finer,the reservoir quality is worse.The diagenesis reservoir sandstone mainly underwent comprise compaction,pressolution,cementation,metasomatism, corrosion,dissolution and clay minerals transformation.
     Sandstone reservoir microstructure of research area is worse,it manifests in low displacement efficiency and high drainage pressure,and bring about bad reservoir infiltrating fluid character and low single well deliverability.According to the data of porosity and permeability,sandstone reservoir of this area is low-lower porosity and lower-lowest permeability.The porosity is chiefly between 10%and 15%,and the permeability is between 0.1×10~(-3)μm~2 and 10×10~(-3)μm~2.There are many influential factor of physical property which are mainly consist of cement,cover depth,diagenesis and so on.The reservoir was in the A_2 sub-stages of mid-diagenesis period,and give priority to cementation,which are calcite cemented and argillaceous recrystallization infilling aperture,secondary pore is short of good development in this reservoir,and cause porosity and permeability worse.
     Using the analytical study such as lithology,physical property,electric nature and oiliness characteristic,the lower limit of four characteristics are defined,the lower limit of lithology is silt;the lower limit of physical property is that porosity is 9%,and permeability is 0.1×10~(-3)μm~2;the lower limit of electric nature is that ILD is greater than or equal to 12.0Ω·m,and AC is greater than or equal to 72μs/ft;the lower limit of oiliness characteristic is oil immersion.
     Using the analysis of precipitation,diagenesis and accumulate,the clascification criteria of low permeable sublayer layer is established.There are four layers in this area which are less permeable,extra less permeable and super less permeable.By means of muti-parameter, reservoir comprehensive evaluation is underway.The bulk parameters are actual porosity, permeability,sandstone integrating thickness,valid sand integrating thickness,sand modular, precipitation facie type and drilled sand level number variation value;the microcosmic parameters are pore throat radius,coefficient of sorting,structure coefficient,secede efficiency and drainage pressure.With the test and analysis of microscope,the reservoir type is low porosity,low-super permeability in Fuyu oil layer.Four types of the reservoir in this area are classified:Ⅰtype is low permeable sublayer reservoir,and the comprehensive evaluation value is greater than or equal to 0.7;Ⅱis extra low permeable sublayer,and the value is greater than or equal to 0.55,is smaller than 0.7;Ⅲis super low permeable sublayer, and the value is greater than or equal to 0.55,is smaller than 0.35;Ⅳis not infiltrate,and the value is smaller than 0.35.Compared with F_Ⅱ,F_Ⅰis better,TheⅠandⅡare extremely better than others in Fuyu oil layer,andⅢis in a small area.
     By means of large number of real and basic geological documents and core analysis and testing data,the macroscopic characteristics of the reservoirs have been researched in detail, and reservoir synergistic evaluation was completed in Fuyu Oil Layer,thus it has provided basic geological evidence for advantageous target region optimization,the above studied results possess much more important theoretical significance and practical value for forther exploration and exploitation.
引文
[1]蔡进功,谢忠怀等.济阳凹陷深层砂岩成岩作用及孔隙演化[J].石油与天然气地质,2002,23(1):84-88.
    [2]曹寅,朱樱,黎琼.扫描电镜与图像分析在储层研究中的联合应用[J].石油实验地质,2001,23(2):21-225.
    [3]陈纯芳,赵澄林等.板桥和岐北凹陷沙河街组深层碎屑岩储层物性特征及其影响因素[J].石油大学学报,2002,26(1):4-7.
    [4]陈丽华等.储层实验测试技术[M].北京石油大学出版社,2000.
    [5]陈丽华,王家华著.油气储层研究技术[M].北京:石油工业出版社,2000.
    [6]陈丽华,魏宝和编著.扫描电镜在石油地质上的应用[M].北京:石油工业出版社,1990.
    [7]陈永武等著.储集层与油气分布[M].石油工业出版社,1995.
    [8]常淑云,李树臣,侯敏.大庆长垣中部扶余油层潜力研究[J].大庆石油地质与开发,2001,20(4):37-39.
    [9]戴启德,纪友亮.油气储层地质学[M].北京:石油大学出版社,1996.
    [10]邓荣敬,徐备,漆家福等.北塘凹陷古近系沙河街组三段沉积特征及储层的影响因素[J].岩石矿物学杂志,2006,25(3):230-236.
    [11]邸世祥,祝总祺等著.碎屑岩储集层的孔隙结构及其成因与对油气运移的控制作用[M].西安:西北大学出版社,1991.
    [12]邸世祥.中国碎屑岩储集层的孔隙结构[M].西安:西北大学出版社,1991.
    [13]冯增昭.沉积岩石学(第二版)[M].北京:石油工业出版社,1993.
    [14]付广,付晓飞,刘安英.松辽瓮地北部扶杨油层深层气成藏与分布主控因素及有利区预测[J].天然气地球科学,2001,12(3):34-38.
    [15]傅强.成岩作用对储层孔隙的影响-以辽河盆地荣37块气田下第三系为例[J].沉积学报,1998,16(3):92-96.
    [16]高福红,于均民.流体包裹体在成岩作用研究中的应用[J].2000,19(4):320-324.
    [17]郭巍,刘招君等.曙北地区莲花油层储层沉积学及非均质特征研究[J].长春科技大学学报,1999,29(4):340-358.
    [18]韩守华,余和中.松辽盆地北部反转构造带与油气聚集的关系[J].大庆石油地质与开发,1996,15(3):1-5.
    [19]洪秀娥,戴胜群,郭建宇等.应用毛细管压力曲线研究储层孔隙结构-以卫城油田Es-4储层为例[J].江汉石油学院学报,2002,24(1):53-55.
    [20]胡志明.低渗透储层的微观孔隙结构特征研究及应用[D].中国科学院研究生院硕士论文,2006.
    [21]姜在兴著.沉积学[M].北京:石油工业出版社,2003.
    [22]李春玉,谢渊,刘绍光等.陕北富县延长组特低孔渗砂岩储层控制因素分析[J].成都理工学院学报,2002,29(3):285-289.
    [23]李会军,程文艳.黄骅坳陷深层低渗透储层特征及其控制因素[J].低渗透油气田,1998,3(2):46-49.
    [24]李晶.松辽盆地大庆长垣形成机制的讨论[J].大庆石油地质与开发,1995,14(2):1-3.
    [25]李淑筠,高彦楼,唐振海等.扶杨油层砂体综合预测技术[J].大庆石油地质与开发,2002,21(4):11-13.
    [26]李延平,陈树民,宋永忠等.大庆长垣及以东泉三、四段扶杨油层浅水湖泊-三角洲体系沉积特征[J].大庆石油地质与开发,2005,24(5):13-16.
    [27]李义军.浅述次生孔隙的成因[J].西北地质,2002,26(1):65-69.
    [28]林景晔,张革,杨庆杰等.大庆长垣扶余杨大城子油层勘探潜力分析[J].大庆石油地质与开发,2003,22(3):16-18.
    [29]刘宝君,张锦泉主编.沉积成岩作用[M].北京:科学出版社,1992.
    [30]刘丁曾,王启民,李伯虎著.大庆多层砂岩油田开发[M].北京:石油大学出版社,1996.
    [31]刘孟慧,赵澄林.碎屑岩储层成岩演化模式[M].北京:石油大学出版社,1993.
    [32]柳成志,辛仁臣,王刚凇辽盆地北部头台地区扶余油层浅水湖泊三角洲沉积特征[J].大庆石油学院学报,1998,22(1):68-70.
    [33]吕晓光,赵永胜,史晓波.储层分类方法的应用及评价[J].大庆石油地质与开发,1995,14(3):11-15.
    [34]吕晓光,李长山,蔡希源等.松辽大型浅水湖盆三角洲沉积特征及前缘相储层结构模型[J].沉积学报,1999,17(4):572-576.
    [35]罗蛰潭,王允诚.油气储集层的孔隙结构[M].北京:科学出版社,1986.
    [36]毛超林.松辽盆地南部长岭凹陷高台子油层三角洲前缘砂体储层特征评价[D].中国地质大学博士论文,2006.
    [37]毛俊莉,张凤莲,鞠俊成.辽河盆地西部凹陷鸳双地区沙二段储层评价及有利储层预测[J].古地理学报,2001,3(3):76-83.
    [38]邱隆伟,姜在兴,操应长等.泌阳凹陷碱性成岩作用及其对储层的影响[J].中国科学 (D辑),2001,31(9):752-759.
    [39]裘亦楠,陈子琪著.油藏描述[M].北京:石油工业出版社,1996.
    [40]裘亦楠,薛叔浩,应凤祥.中国陆相油气储集层[M].北京:石油工业出版社,1997.
    [41]裘亦楠,薛叔浩.油气储层评价技术[M].北京:石油工业出版社,1997.
    [42]裘亦楠编著.碎屑岩储层沉积基础[M].北京:石油工业出版社,1987.
    [43]邵红梅.松辽盆地北部徐家围子断陷深层碎屑岩储层特征研究[D].吉林大学硕士论文,2005.
    [44]寿建峰.碎屑岩储层控制因素及钻前定量地质预测[J].海相油气质,1999,4(1):20-24.
    [45]万俭英,王始波,赵秋枫等.大庆长垣及以西地区泉三-四段扶杨油层储层特征[J].大庆石油地质与开发,2007,26(5):14-17.
    [46]王建功,王天琦,卫平生等.大型坳陷湖盆浅水三角洲沉积模式-以松辽盆地北部葡萄花油层为例[J].岩性油气藏,2007,19(2):28-34.
    [47]王良忱,张金亮编.沉积环境和沉积相[M].北京:石油工业出版社,1998.
    [48]王鹏,赵澄林.东濮凹陷杜桥白地区深部储集层次生孔隙成因探讨[J].石油勘探与开发,2001,28(4):44-46.
    [49]王行信,辛国强等.松辽盆地粘土矿物研究[[M].哈尔滨:黑龙江科学技术出版社,1990.
    [50]王雪.松辽盆地齐家凹陷与大庆长垣扶杨油层油源[J].石油勘探与开发,2006,33(3):294-298.
    [51]邢顺诠,姜洪启.松辽盆地陆相砂岩储集层性质与成岩作用[M].哈尔滨:黑龙江科学技术出版社,1993.
    [52]邢顺诠,姜洪启.松辽盆地砂岩储集层成岩模式与孔隙演化[J].石油与天然气地质,1990,11(4).
    [53]阎长辉,戴达山,陈青.流动单元法评价储层的展布特征[J].成都理工学院学报,2002,29(1):36-40.
    [54]应凤祥,王衍琦,王克玉等著.中国油气储层研究图集(卷一)[M].北京:石油工业出版社,1994.
    [55]杨喜贵,付广.松辽盆地北部扶杨油层油气成藏与分布的主控因素[J].特种油气藏,2002,9(2):8-11.
    [56]于兴河编著.碎屑岩系油气储层沉积学[M].北京:石油工业出版社,2002.
    [57]刘为付,刘双龙,孙立新,张永清,苗洪波.大港枣园油田孔二段储层综合评价[J]. 大庆石油学院学报,2000,24(3):5-7.
    [58]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.
    [59]张忠民,朱伟,赵澄林.辽河盆地下第三系深部碎屑岩储层次生孔隙演化模式及其分布[J].大庆石油学院学报,2002,26(3):12-14.
    [60]赵澄林著.储层沉积学[M].北京:石油工业出版社,1998.
    [61]赵文革,黄薇,林景晔等.大庆长垣西侧扶杨油层油水同层形成及识别[J].石油实验地质,2006,28(5):472-475.
    [62]赵约华,王敏.双河油田储层结构特征分类及影响因素[J].石油学报,1994,15(4):31-39.
    [63]张庆国,鲍志东,郭雅君等.扶余油田扶余油层的浅水三角洲沉积特征及模式[J].大庆石油学院学报,2007,31(3):4-7.
    [64]郑浚茂,庞明.碎屑储集岩的成岩作用研究[M].北京:中国地质大学出版社,1989.
    [65]中国石油天然气总公司科技发展局.中国油气储层研究论文集[M].北京:石油工业出版社,1993.
    [66]周丽梅,李德发,刘文碧.大丘构造S组储层孔隙结构特征及储层评价[J].矿物岩石,1999,19(2):47-51.
    [67]朱国华.碎屑岩储集层孔隙的形成演化和预测[J].沉积学报,1992,10(3).
    [68]朱建伟,刘招君,董清水.松辽盆地层序地层格架及油气聚集规律[J].石油地球物理勘探,2001,36(3):339-344.
    [69]BennionDB,etal.Low permeability gasreservoirs:Problems,opportunities and solution fordrilling,completions stimulation and production[J].SPE,1996,35-77.
    [70]Bishop SR.The experimental investigation of formation damage due to the induced flocculation of clay swithina sandstone pore structure by a high salinity brine[J].SPE,1997,38-56.
    [71]Chen Cheng,Sun Yimei.Microfacies analysis of fan delta front and its application in Shuanghe oilfield[J].Geoscience,2000,15(1):88-93.
    [72]Chen Yanjing,Guo Guangjun,Li Xin.Geodynamic background of Mesozoic golden ore formation in granitic greenstone terrain on North China craton[J].Science in China (series D),1998,28(1):35-40.
    [73]C hnudhary RN,Bondre SA.Regional sandstone porosity-maturity trend and hydrocarbon entrapment time in Gandhar field of Cambay basin[M].2~(ND) Oil Nat Gas,1993.
    [74]HallP L.Clays:their significance,properties,origin and uses[J].A Hand book of Determinative Methods in Clay Mineralogy,1987,1:1—25.
    [75]HayatdavoudiA and GhalamborA.Controlling formation damage caused by kaolinite clay minerals:PartⅠ-Ⅱ.SPE31-118,1996.
    [76]H.G.Reading.Sedimentary Environments:Processes[M].Facies and Stratigraphy,1996.
    [77]Hower,J.et.al.Mechanism of burial metamorphis mofargilla ceousse diments,I,1976.
    [78]Joachim WE,Amthor and JOS Okkerman.Influence of early diagenesis on reservoir quality of rotliegende sandstones,northern nether lands[J].AAPG Bullet,1998,82(12):2246-2265.
    [79]John G.Mcpherson,etal.Fandelta sand braid deltasxonceptuall problems.In:Nemec W,SteelRl,eds.Fandeltas.Springer-Verlag,1988.14—22
    [80]Mao Jingwen,Zhang Zuoheng,Yu Jinjie,et al.Geodynamic background of broad ore formation in scale on Mesozoic in North China and adjacent region:guidance from accurate measurements of metallic ores ages[J].Science in China(series D),2003,33(4):289-299.
    [81]P.Weomer,H.W.Posamentier.Siliciclastic sequence stratigraphy—Recent Developments and Applications[M].AAPG Memoir,1994.
    [82]Rodrigo Dias Limal,Luiz Fernando De Ros.The role of depositional seting and diagenesis on the reservoir quality of Devonian sandstones from the Solimoes Basin,Brazilian Amazonia[J].Marine and Petroleum Geology,2002,19:1047-1071.
    [83]Surdam R C,Crossey L J.Predictive models for sandstone diagenesis[J].Org Geochem,1991,17:243-253.
    [84]Wilkinson M,Darby D,Haszeldine R S,et al.Secondary porosity Generation During Deep Burial Associated with Overpressure Leak-off:Fulmar Formation,UK Central Graben[J].AAPG Bulletin,1997,81(5):803-812.
    [85]Y Le Gallo,O.Bildstein,etc.Coupled reaction-flow modeling of diagenetic changes in reservoir permeability,porosity and mineral compositions[J]Journal of Hydrology,1998(209):366-388.

© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号

地址:北京市海淀区学院路29号 邮编:100083

电话:办公室:(+86 10)66554848;文献借阅、咨询服务、科技查新:66554700