东14长段取心水平井区杨Ⅰ组厚砂层内部建筑结构及剩余油研究
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摘要
目前国内大部分油田已进入开发中后期,随着开发的不断深入,用合理有效的方法寻找并挖潜剩余油显得尤为重要。开展储层精细描述、单砂体内部建筑结构及其内部流动单元研究,分析剩余油分布规律,为油田调整开发方案及增产助采提供有利依据。
本文通过精细的储层沉积学理论,对榆树林油田东14水平井井区杨Ⅰ组厚砂层进行了水平取心井岩心归位及精细描述,井区内垂向井震结合高分辨率层序地层、平面沉积微相、空间储层分布研究。在此基础上,对水平井水平取心段河道砂体所在曲流点坝进行单砂体内部建筑结构研究,为油田进入高含水期、多次井网加密后的三次采油阶段揭示出了更为复杂的储层内部结构,反映出非常强的储层非均质性,结合目的层剩余油的研究,总结出储层内剩余油的分布特征,为持续、高效开发油田,提高采收率具有重要的现实意义。
At present, the domestic majority of oil fields entered the development mid and late part, along with development unceasingly thorough, seeking for and tapping latent potentialities the remaining oil with the reasonable effective method appears especially important. The development reservoir fine description, the internal sandbody architecture and the internal flow unit research, and then remaining oil distribution rule analysis, helps for the oil field adjustment development program and the production increase picks provides the advantageous basis .
This thesis adopts the fine reservoir sedimentology theory, has carried on horizontal core homing and the fine description, high resolution sequence stratigraphy of vertical well and earthquake in well field, surface sediment microfacies, reservoir distribution in space studies of YI thick sandstone of east 14 horizontal well block in Yushulin oil field .Based on this, regarding channel sandstone of meandering channel bar, there are horizontal well in which carries on the internal sandbody architecture studies. That revealed more complex reservoir internal architecture, reflected very strong reservoir heterogeneity for tertiary recovery stage, which has entered the high watery time, the multiple well pattern thickening .Combined with remaining oil research in subject reservoir, this paper sumed up distribution feature of reservoir remaining oil, brought vital practical significance for the continuate and highly effective development oil field and oil recovery enhancment .
本文通过精细的储层沉积学理论,对榆树林油田东14水平井井区杨Ⅰ组厚砂层进行了水平取心井岩心归位及精细描述,井区内垂向井震结合高分辨率层序地层、平面沉积微相、空间储层分布研究。在此基础上,对水平井水平取心段河道砂体所在曲流点坝进行单砂体内部建筑结构研究,为油田进入高含水期、多次井网加密后的三次采油阶段揭示出了更为复杂的储层内部结构,反映出非常强的储层非均质性,结合目的层剩余油的研究,总结出储层内剩余油的分布特征,为持续、高效开发油田,提高采收率具有重要的现实意义。
At present, the domestic majority of oil fields entered the development mid and late part, along with development unceasingly thorough, seeking for and tapping latent potentialities the remaining oil with the reasonable effective method appears especially important. The development reservoir fine description, the internal sandbody architecture and the internal flow unit research, and then remaining oil distribution rule analysis, helps for the oil field adjustment development program and the production increase picks provides the advantageous basis .
This thesis adopts the fine reservoir sedimentology theory, has carried on horizontal core homing and the fine description, high resolution sequence stratigraphy of vertical well and earthquake in well field, surface sediment microfacies, reservoir distribution in space studies of YI thick sandstone of east 14 horizontal well block in Yushulin oil field .Based on this, regarding channel sandstone of meandering channel bar, there are horizontal well in which carries on the internal sandbody architecture studies. That revealed more complex reservoir internal architecture, reflected very strong reservoir heterogeneity for tertiary recovery stage, which has entered the high watery time, the multiple well pattern thickening .Combined with remaining oil research in subject reservoir, this paper sumed up distribution feature of reservoir remaining oil, brought vital practical significance for the continuate and highly effective development oil field and oil recovery enhancment .
引文
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[2] Collinson J D. Vertical sequence and sand body shape in fluvial sequences[A]. In Miall A D(ed.). Fluvial Sed-imentology[C]. Canada Society of Petroleum Geologists Memoir 5,Calgary,1978:577-586.
[3] Miall A D. Resveroir heterogeneities in fluvial sandstone:lessons from outcrop sutdies[J]. AAPG,1988,72(6):682-697.
[4] Eberth D A,Miall A D. Stratigraphy,sedimentology and evolution of avertebrate bearing braided to anastomosed fluvial system,Cutter Formation (Permian- Pennsylvanian),north- central NewMexico[J]. Sediment. Geol.,1991,72:225-252.
[5] Miall A D. The geology of fluvia1 deposists[M]. Springer Verlag Berlin Heidelberg. l996,75-178.
[6] Cossey S P J,Frank H J. Uranium mineralization and use of resistance log character in deltaic point bars:Franklin Mine,Kanres County,Texas[J]. AAPG Bulletin,1983,67(1):131-151.
[7] Flach P D,Mossop G.D. Depositional environments of Lower Cretaceous McMurray Formation Athabasca oil sands,Alberta[J]. AAPG Bulletion,1985,69(8):1195-1207.
[8] Hesp P. Morphology,dynamics and internal stratification of some established foerdunes in Southeast Austrslia[J]. Sedimentary Geology,1988,55:17-41.
[9] Nemec W,Steel R.T,Gjelberg J,et al. Anatomy of collapsed and re-established delta front in Lower Cretaceous of Easten Spitsbergen:gravitational sliding and sedimentation processes[J]. AAPG Bulletion,1988,72(4):454-476.
[10] Dreyer T,Scheie A,Walderhaug O. Minipermearmeter-based study of permeability trends in channel sand bodies[J]. AAPG Bulletin,1990,74(4):359-374.
[11] Jordan D W,Pryor W A. Hierarchical levels of heterogeneity in a Mississippi river meander belt and application to reservoir systems[J]. AAPG,1992,76(10):1601-1624.
[12] Alexander J,Bridger J S,et al. Holocence meander-belt evolution in an active extensional basin,Southwestern Montana[J]. Jounral of Sedimentary Research. 1994,B64(4):542-559.
[13] Olsen T,Steel R J,et al. Sequential architectuer in a fluvial succession sequence stratigraphy in the Upper Cretaceous Mesaverde Group,Price Canyon,Utah[J]. Joumal of Sedimentary Research,1995,B65(2):265-280.
[14] Robinson J W.,McCabe P. Sandstone-body and shale-body dimensions in a braide fluvial system:Salt wash sandstone Member(Morrison Formation),Garfield County, Utah[J]. AAPG Bulletin,1997,81(8):1267-1291.
[15]张昌民.储层研究中的层次分析法[J].石油与天然气地质,1992,13(3):344-350.
[16]张昌民.现代荆江江心洲沉积[J].沉积学报,1992,14(2):146-152.
[17]张昌民等.青海油砂山油田第68号层分流河道砂体解剖学[J].沉积学报,1996,14(4):70-76.
[18]裘怿楠.河流沉积学中的河型分类[J].石油勘探与开发,1985,12(2):72-74.
[19]贾爱林,肖敬修著.油藏评价阶段建立地质模型的技术与方法[M].北京:石油工业出版社,2002:125-144.
[20]贾爱林.储层地质模型建立步骤[J],地学前缘,1995年,2(3-4),221-225.
[21]李思田,李祯,孙永传,等.陕甘宁盆地河流砂体露头调查及地质知识库基础研究[R].中国油气储层研究(85-103)成果报告,1994,60-69.
[22]焦养泉,李思田,李祯,等.曲流河与湖泊三角洲沉积体系及典型骨架砂体内部构成分析[M].武汉:中国地质大学出版社,1995:1-32.
[23]胜利油田石油地质志编写组编.中国石油地质志(卷六):胜利油田[M].北京:石油工业出版社,1993,375-381.
[24]倪晋仁等.现代冲积河流的河型空间转换模式探讨[J].沉积学报,2000,18(1):1-6.
[25]张欧阳.游荡河型造床实验过程中河型的时空演替和复杂响应现象[J].地理研究,2000,19(2):180-188.
[26]王随继等.网状河流的分汊河流的河型归属讨论[J].地学前缘,2000,7(8):79-86.
[27]许炯心.我国游荡河型的地域分布特征[J].泥沙研究,1990,(2):47-53.
[28]许炯心.中国江心洲河型的地域分布特征[J].云南地理环境研究,1992,4(2):46-55.
[29]许炯心.高含沙型曲流河床的形成机理[J].科学通报,1989,34(21):1649-1651.
[30]许炯心.南运河弯曲河型的成因[J].地理学与国土研究,1989,5(2):54-59.
[31]王继贿等.根据河道形态和沉积物特征的河流新分类[J].沉积学报,1999,17(2):240-246.
[32]高健等.滦河中游现代河流沉积构造与水动力关系[J].沉积学报,1983,1(1):27-41.
[33]何鲤等.长江上游的心滩-重庆珊瑚坝现代沉积考察[J].沉积学报,1986,4(1):116-125.
[34]赖志云.荆江太平口边滩现代沉积研究[J].沉积学报,1986,4(4):109-118.
[35]李从先等.滦河废弃三角洲和沙坝-泻湖沉积体系[J].沉积学报,1983,1(2):60-71.
[36]中国科学院地理研究所渭河研究组.渭河下游河流地貌[M].北京:科学出版社,1983:153-230.
[37]王俊玲.嫩江下游现代河流沉积特征[J].地质论评,2001,47(2):193-199.
[38]马世忠,杨清彦.曲流点坝沉积模式、三维构形及其非均质模型[J].沉积学报,2000,18(2):241-247.
[39]马世忠,付春权,王再山,等.单砂体三维地质模型基础上的优势渗透率分析方法[J].大庆石油学院学报. 2000,24(3):1-4.
[40]马世忠,崔义,阎百泉,等.单砂体内部薄夹层级次、成因、类型研究[J].大庆石油学院学报,2006,30(增刊):1-3.
[41]马世忠,王一博,崔义,等.油气区水下分流河道内部建筑结构模式的建立[J].大庆石油学院学报,2006,30(5):1-3.
[42]马世忠,吕桂友,闫百泉,范广娟.河道单砂体“建筑结构控三维非均质模式”研究[J].地学前缘,2008,15(1):57-64.
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