塔河油田一区主体区三叠系下油组储层综合评价
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摘要
塔河1区三叠系下油组油藏属大底水、薄油层、受构造控制的砂岩孔隙型块状底水未饱和油藏。目前存在的主要问题是生产井普遍见水,含水上升过快、递减加大,水平井产液剖面出现异常,油藏总体动用程度偏低,高含水后治理难度增大,堵水措施有效率低,对油藏开发带来了严重威胁。因此有必要对该区储层进行再认识,对该区的储层做出进一步评价。为了科学合理的预测有利储层分布区域,作者深入研究了该区主要储油的前3小层的储层特征,最终结合四性关系和储层控制因素以及储层下限标准的研究成果,对研究区有利储层进行了合理预测。
     论文利用塔河油田1区现有的勘探生产报告,依靠钻井、测井、地震和分析化验资料,采用传统的基础地质学方法,结合先进的理论技术和方法开展研究,在整理、消化、总结前人研究成果的基础上,对下油组储层特征进行研究。在前人小层划分和本次岩心观察基础上,对研究区26口直井及直导眼井和19口水平井的主要层段进行小层划分的复核和补充。研究区下油组处在辫状主河道发育区,为一套巨厚的辫状河三角洲沉积,剖面上多表现为以大套的正韵律辫状砂体为主要特征,平面上砂体分布广泛,呈多分叉或合并的辫状河道沉积特征,下油组各小层主要发育辫状主河道微相,河道间微相欠发育甚至不发育,发育的河道间微相也仅局部零星存在;对下油组砂岩的岩石学特征、物性特征及孔隙结构特征进行了研究,该区岩石主要以长石岩屑砂岩和岩屑长石砂岩为主,孔隙结构为中孔、高渗、均匀粗喉孔隙分布储层;针对本区储层特殊性,结合测井电性特征及物性解释结果,从层内、平面、层间进行储层非均质研究。层内非均质主要对层内渗透率的韵律特征和夹层类型和分布做研究;平面非均质性研究主要从砂体分布、物性参数变化等方面进行;层间非均质性主要从渗透率均值、极差、突进系数来对层间非均质程度进行评价。储层岩石的成分、储集层所处的沉积相带、储层的成岩作用等对储层物性具有明显地控制作用,造成储层孔渗降低的成岩作用以胶结作用最强,其次是压实作用,溶解作用增加了储层孔隙;根据物性及孔隙结构特征,建立储层分类评价标准,将工区储层划分为四类,Ⅰ、Ⅱ储层具有较好的储集渗流能力,Ⅲ类储层较差,Ⅳ类为非储层;在对沉积相、储层物性和砂体平面展布特征研究的基础上,对塔河油田1区三叠系下油组1.、2、3、小层储层进行了综合评价,研究区以Ⅱ、Ⅲ类储层为主,Ⅰ类储层在TK103-T114-TK121和TK120-TK112-S29井区少量发育。
The reservoir of the 1st block of Tahe Oilfield is one with a complicated fault system and edge-bottom water in the lower section of the lower oil formation. At present, the main problem is the breakthrough water in production wells. Water volume is increased too fast with over -declined oil volume. Production fluid lateral section of the horizontal wells sees abnormal features. The overall production level of reservoirs declines. The treatment is difficult to find in the high water stage, and it is not very effective to block water.All above factors pose a serious threat to reservoirs.Therefore necessary to re-understanding of the reservoir, the reservoir area to make further evaluation.In order to scientific and reasonable to predict reservoir distribution in the region, author in-depth study of the area of the first three main oil reservoir characteristics of a sublayer. Finally, combined four factors of sexual relations and reservoir control and minimum standards for the research results of reservoir, reasonable forecasted reasonably the distribution of favorable reservoir.
     Based on summing up and collating the previous studies of the 1st block of Tahe Oilfield , combination of advanced technologies and method to carry out scrutiny, this paper takes the drillinganalytics, the geophysical well logging ,the seismology ,the experimental data and the traditional geology method to study the characteristics of Lower Oil Formation by using available exploration and production data in study area. In the previous division and a small layer on the basis of this observation of cores, author reviewed and makeuped the sublayer division of the main layers of 26 vertical wells, straight guide hole wells and 19 horizontal wells of the study area.The study area of Lower Oil Formation in braided main channel development area is a thick braided river deltaic deposit. The main feature of profile is more than the performance with large sets of positive rhythm braided sand, the sand body widely distributed, multi-branching or merger braided stream was the depositional characteristics, the sublayer of Lower Oil Formation development braided main stream channel microfacies, little interchannel microfacies and even less non-development, development of interchannel microfacies are only sporadic local exist.Based on study of petrologic characteristics, properties characteristics and pore structure in Lower oil formation,we regard that the lithology of study area is mainly with The main types of sandstone are feldspathic litharenite and lithic arkose ,the pore structure of mesoporous, mesopore, high permeability, uniform coarse pore throat distribution of reservoir. Aim at specificity for the reservoir, author combined electric characteristics of well logging and interpretation of results of physical properties and study the layer in layer, flat, interlayer reservoir heterogeneity.Author study the layer in layer heterogeneity mainly at layer in layer’s rhythm characteristic of permeability and the type of interbed and interbed’s distribute. Plane heterogeneity mainly study sand distribution, physical parameters in areas such as. interlayer heterogeneity mainly use the means of permeability, range, coefficient of sudden to evaluate the degree of non-homogeneous of interlayer. Moreover, the study shows that the reservoir property is clearly under the control of composition of reservoir rocks, sedimentary facies and reservoir diagenesis and so on. The first is lithogenesis during the factors of thin out porosity and permeability, the second is compaction. Towards to the good permeability, pore throat development is the most important factors and the next is particular denudation. According to physical property and pore structure,the author got the criterion of reservoir classification and defined 4 container rock.Based on the study of sedimentary facies,reservoir parameters and sand plane distribution,the author comprehensively evaluated the character of 1,2,3 sublayer for Triassic Lower Oil Formation in the 1st Block of Tahe Oilfield, the study shows thatⅡ,Ⅲt ype of reservoir is mainly,Ⅰ-type reservoir is only in TK103-T114-TK121 and TK120-TK112-S29 wells development zones.
引文
[1]刘小会.俄罗斯卡多夫油田维宪层系储层综合评价[D].北京:中国地质大学,2009.
    [2]周文,闫长辉,陈青,邓虎成.塔河1区合理采液强度及综合治理措施研究[R]成都理工大学,2009.
    [3]匡建超,张哨楠.塔河1号油田三叠系下油组储层早期开发地质特征研究[J]钻采工艺,2007,30(4):72-74.
    [4]郭建华,刘辰生,朱悦.阿克库勒地区三叠系中油组主砂体沉积体系综合解释[J]中南大学学报,2006,10.
    [5]王明艳.阿克库勒凸起古生界和三叠系碎屑岩系层序地层学与储层特征研究[D]中南大学,2005.
    [6]庞雯,时宝宏,夏东领.轮南地区三叠系储层特征[J]石油天然气学报,2007,29,5.
    [7]王咸彬.塔河南探区三叠系中油组储层预测[J]石油物探,2008,47,3.
    [8]康立功.塔河油田2区三叠系油藏类型初步探讨[J]安徽地质,2008,18,1.
    [9]李桂荣,巢阳.塔河油田三叠系油藏特征分析[J]石油物探,2004,43,4.
    [10]莫振敏.塔河油田三叠系油藏特征探讨[J]西部探矿工程,2009,7.
    [11]丁勇,邱芳强,高玄彧.塔河油田三叠系油气藏特征及成藏规律[J]中国西部油气地质,2006,2,3.
    [12]刘辰生.塔里木盆地阿克库勒地区三叠系层序地层学与沉积相研究[D]中南大学,2006.
    [13]顾忆.塔里木盆地北部塔河油田油气藏成藏机制[J]石油实验地质,2000,22,4.
    [14]旷理雄.塔里木盆地北部于奇地区奥陶系和三叠系油气成藏机制[D]中南大学,2007.
    [15]李国超,李振玉,刘忠立,赵立群.塔河油田1区三叠系下油组开发调整方案油藏地质特征及储量复算[R]中国石化西北分公司勘探开发研究院,2004.
    [16]张林艳,马洪涛,娄大娜,周丽梅,陈叔阳.塔河油田1区三叠系下油组油藏加密调整方案[R]中国石油化工股份有限公司西北油田分公司,2008.
    [17]周棣海等.塔河油田盐边三叠系沉积相研究[C]2000.
    [18]孙龙德等.塔里木盆地石油地质研究新进展和油气勘探主攻方向[J].地质科学,2005(40):165-178.
    [19]曹守连,陈发景,罗传容.塔北中、新生代前陆盆地沉降机制数值模拟[J]石油天然气地质,1994,15(2):114-120.
    [20]牟泽辉,熊海河,朱宏权,等.塔里木盆地阿克库勒凸起油气成藏演化[J]石油与天然气地质,1997,18,(3):228-230.
    [21]刘承生,田永强,郭建华.阿克库勒地区三叠系储集层成岩作用[J]新疆石油地质,2005,26,1.
    [22]裘亦楠,薛叔浩.油气储层评价技术[M] .修订版.北京:石油工业出版社, 2001.
    [23]裘亦楠.中国陆相碎屑岩储层沉积学的进展[J] .沉积学报1992,10(3):16-24.
    [24]裘亦楠,薛叔浩.国陆相油气储集层[M]北京:石油工业出版社,1997.
    [25]中国石油天然气集团公司油气储层重点实验室论文集(2001)[C]中国石油天然气集团公司,2001.
    [26]郭建华等.塔里木盆地阿克库勒凸起西缘东河砂岩储集物性非均质性研究[J].沉积学报,2005(23):406-411.
    [27]雍世和,张超谟.测井数据处理与综合解释[M] .东营:石油大学出版社.1996.
    [28]戚厚发.天然气储层物性下限及深层气勘探问题的探讨[J] .天然气工业,1989,9(5):26-30.
    [29]刘岩.鄂尔多斯盆地南部镇泾油田长8段储层特征研究[D]成都理工大学,2008.
    [30]魏小薇,谢继容等.低孔渗砂岩储层基质物性下限确定方法研究——以川中LA构造沙一段油藏为例[J]天然气工业,2008,25(增刊):28-31.
    [31]丁晓琪,张哨楠,陈克勇,孟祥豪.镇泾-泾川地区储层下限标准的研究[J].新疆地质,2005,23(2):190-193.
    [32]储昭奎.鄂南镇泾地区延长组储层特征研究[D].成都理工大学,2006.
    [33]耿龙翔,曹玉珊等.濮城油田砂岩储集层物性下限标准研究[J].石油勘探与开发,1999,26(1):81-83.
    [34]郭睿.储集层物性下限确定方法及其补充[J].石油勘探与开发,2004,31(5):140-143.
    [35] Weimer P.&Posamentier H.(eds.).Siliciclastic Sequence Stratigraphy-Recent Developments nd Applications.AAPG Memoir 58.1994,p492
    [36] Pettijoho F.J. et al. Sand and Sandstone.[M],1972.
    [37] Conybeare C E B. Geommorphalogy of oil and gas fields in sandstone bodies,1976.
    [38] Taylor J.C.M, Sandstones as reservoir rocks, Development in Petroleum Geology [J] 1997,1:147-196.
    [39] Tillman R. W. et al eds. Reservoir Sedimentology [J] ,1987,SEPM Spec,publ.No.40.
    [40]侯雨庭,郭清娅,李高仁.西峰油田有效厚度下限研究[J].中国石油勘探,2003,8(2):51-54.
    [41]王允诚.油层物理学[M] .北京.石油工业出版社1993.
    [42]周文,王允诚.川东石炭系有效储层下限标准的确定[J].石油与天然气地质,17,4:343-346.
    [43]周文.确定裂缝-孔隙型碳酸盐岩储层有效厚度[J].测井技术,1988,12(3):68-73.
    [44]罗蛰潭,王允诚.油气储集层的孔隙结构[M].北京:科学出版社,1986,162-169.
    [45]陶莹.麻黄山西区块东北部延安组储层特征及评价[D]成都理工大学,2009,69-71.
    [46]丁晓琪,张哨楠.镇原-泾川地区储层下限标准的研究[J].新疆地质,2005,23(2):190-19.
    [47]姜在兴.沉积学[M] .北京:石油工业出版社.2002.
    [48] Halliburion Chemical Laboratory report(immer-Siom Test)[M]Canada,1996.
    [49] Tillman R. W. et al eds. Reservoir Sedimentology [J] ,1987,SEPM Spec,publ.No.40.
    [50] Timothy, A.Cross. 2000. stratigraphic controls on reservoir attributes in continental strata.地学前缘. 7(4):322-350.
    [51]顾忆.塔里木盆地北部塔河油田油气藏成藏机制[J].石油实验地质,2000,22(4):307-312.
    [52]顾忆,黄继文,马红强.塔河油区油气分布特点及其控制因素[J].中国西部油气地质,2006,2,(1):19-25.
    [53]姜在兴.沉积学[M] .北京:石油工业出版社.2002.
    [54]刘宝珺沉积岩石学[M].北京:地质出版社, 1980.
    [55]王允诚.油气储层评价[M].北京:石油工业出版社,1999.
    [56]周文.裂缝性油气储集层评价方法[M].成都:四川科学技术出版社,1998.
    [57]裘亦楠,薛叔浩.油气储层评价技术[M] .北京:石油工业出版社, 1994.
    [58]裘亦楠,薛叔浩.油气储层评价技术[M] .修订版.北京:石油工业出版社, 2001.
    [59]曹树春.储集层精细描述的新思路[J].地质科技情报,2001(3):39-43.
    [60]徐凤根等.储层定量评价中指标权重的计算途径[J]石油学报,1996,17(2):29.
    [61]沈文略等.全波列测井分析在油气储层评价中的应用[J].北京大学学报(自然科学版),第40卷,2004(3):203-211.
    [62] Timothy, A.Cross .Single Well Reservoir Evaluation[M] Canada:1988.
    [63] T.O.ALLEN and A.P.ROBERTS,Principle of single well reservoir evaluation[M]USA,1990.
    [64]周文等.麻黄山西区块裂缝发育特征及油气成藏关系研究[R].成都理工大学油气藏地质及开发工程国家重点实验室,2007.
    [65]周文,闫长辉,陈青,邓虎成等.塔河1区合理采液强度及综合治理措施研究[R].成都理工大学,2009.
    [66]顾家裕,张兴阳.油气沉积学发展回顾和应用现状[J].沉积学报,2003.21(1),137-141
    [67]毛志强.非均质储层夹层控油作用初论———非均质储层油气分布规律及测井响应特征[ J ].地球科学:中国地质大学学报,2003,28 (2):196-200.
    [68]孙龙德等.塔里木盆地石油地质研究新进展和油气勘探主攻方向[J].地质科学,2005(40):165-178.
    [69]朱美衡等.阿克库勒地区三叠系层序地层及对储集砂体的控制作用[J].西安石油大学学报,2007(22):1-6.
    [70]付国民等.塔河油田9区三叠系中上统高分辨率层序地层及沉积演化[J].兰州大学学报,2007(43):13-17.
    [71]相建民.塔里木油田水平井高效开发技术[J].石油勘探与开发,2006,33(6):722-728.
    [72]郭凯,史静.塔中4油田东河砂岩储集层变差函数规律研究[J].新疆石油天然气,2008(4):4-8.

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