杏六区东部分流河道砂体渗流单元组合及水淹模式
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摘要
为了对大庆长垣杏树岗油田杏六区东部浅水三角洲分流河道砂体内三元复合驱层段的水淹程度进行定量化分析,进而确定剩余油饱和度的垂向分布特征。通过岩心观察和渗透率相对变化率的计算,并结合含油饱和度测试数据,在单砂体级别内对具有相似渗流能力的渗流单元及其组合类型进行划分,从而定量化计算不同渗流单元组合类型中的水淹程度。分流河道内共识别出5种细粒沉积类型和3种渗流单元组合类型。通过对不同渗流单元组合类型中水淹特征的认识可为后期剩余油挖潜方案的制定提供依据。
In order to quantitatively analyze the flooding degree of ASP(alkaline surfactant polymer)flooding layers in shallow water delta distributary channel sand body in eastern Xing-6 block in Xingshugang oilfield,which belongs to Daqing placanticline,the vertical distribution characteristics of remaining oil saturation were determined. Through the observation of coring wells and the calculation results of relative change rate of permeability,and combining with oil saturation test data,different seepage units and their combination types were classified within the single sand body level,and the flooding degree were calculated quantitatively in different combination types of seepage units. A total of five types of fine-grained sediments and three combinations types of seepage units were identified in distributary channel. The understanding of flooding characteristics of different combination types of seepage units can provide geological basis for trapping potential of remaining oil in the later stage.
In order to quantitatively analyze the flooding degree of ASP(alkaline surfactant polymer)flooding layers in shallow water delta distributary channel sand body in eastern Xing-6 block in Xingshugang oilfield,which belongs to Daqing placanticline,the vertical distribution characteristics of remaining oil saturation were determined. Through the observation of coring wells and the calculation results of relative change rate of permeability,and combining with oil saturation test data,different seepage units and their combination types were classified within the single sand body level,and the flooding degree were calculated quantitatively in different combination types of seepage units. A total of five types of fine-grained sediments and three combinations types of seepage units were identified in distributary channel. The understanding of flooding characteristics of different combination types of seepage units can provide geological basis for trapping potential of remaining oil in the later stage.
引文
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[11]高志勇,周川闽,冯佳睿,等.库存坳陷白垩系巴什基奇克组泥砾的成因机制与厚层状砂体展布.石油学报,2016,37(8):996-1010.GAO Z Y,ZHOU C M,FENG J R,et al.Mechanism and sedimentary environment of the muddy gravel concomitant with thick layer sandstone of Cretaceous in Kuqa Depression.Acta Petrolei Sinica,2016,37(8):996-1010.
[12]宋璠,苏妮娜.辽河油田锦99块扇三角洲前缘储层隔夹层成因与分布.沉积与特提斯地质,2014,34(2):65-71.SONG F,SU N N.Genesis and distribution of the fan delta front barrier interlayers in the Jin-99 block of the Liaohe oil field.Sedimentary Geology and Tethyan Geology,2014,34(2):65-71.
[13]ZEINIJAHROMI A,AL-JASSASI H A,BEGG S,et al.Improving sweep efficiency of edge-water drive reservoir using induced formation damage.Journal of Petroleum Science and Engineering,2015,130:123-129.
[14]王旭影,姜在兴,岳大力,等.河口三角洲河口坝储层内部隔夹层分布样式研究.西南石油大学学报(自然科学版),2017,39(2):9-17.WANG X Y,JIANG Z X,YUE D L,et al.Patterns of barrierinterlayers in mouth bar of fluvial dominated delta reservoirs.Journal of Southwest Petroleum University(Science&Technology Edition),2017,39(2):9-17.
[15]李海燕,高阳,王延杰,等.辫状河储集层夹层发育模式及其对开发的影响--以准噶尔盆地风城油田为例.石油勘探与开发,2015,42(3):364-373.LI H Y,GAO Y,WANG Y J,et al.Intercalation pattern and its impact on development of braided river reservoirs:a case of Fengcheng oilfield,Junggar Basin,NW China.Petroleum Exploration and Development,2015,42(3):364-373.
[16]邓庆杰,胡明毅,胡忠贵,等.浅水三角洲分流河道砂体沉积特征--以松辽盆地三肇凹陷扶Ⅱ-Ⅰ组为例.石油与天然气地质,2015,36(1):118-127.DENG Q J,HU M Y,HU Z G,et al.Sedimentary characteristics of shallow-water delta distributary channel sand bodies:a case fromⅡ-Ⅰformation of Fuyu oil layer in the Sanzhao depression,Songliao Basin.Oil&Gas Geology,2015,36(1):118-127.
[17]高志勇,冯佳睿,周川闽,等.干旱气候环境下季节性河流沉积特征--以库车河剖面下白垩统为例.沉积学报,2014,32(6):1060-1071.GAO Z Y,FENG J R,ZHOU C M,et al.Arid climate seasonal rivers deposition:a case of lower Cretaceous in Kuche river outcrop.Acta Sedimentologica Sinica,2014,32(6):1060-1071.
[18]孙雨,马世忠,丛琳,等.松辽盆地扶新隆起带南部扶余油层沉积特征及沉积模式探讨.沉积学报,2012,30(4):706-715.SUN Y,MA S Z,CONG L,et al.Study on depositional characteristics and model of Fuyu oil layer in the Southern Fuxin uplift of Songliao Basin.Acta Sedimentologica Sinica,2012,30(4):706-715.
[19]庞德新.砂砾岩储层成因差异及其对储集物性的控制效应--以玛湖凹陷玛2井区下乌尔禾组为例.岩性油气藏,2015,27(5):149-154.PANG D X.Sedimentary genesis of sand-conglomerate reservoir and its control effect on reservoir properties:a case study of the lower Urho formation in Ma 2 well block of Mahu depression.Lithologic Reservoirs,2015,27(5):149-154.
[20]韩雪芳,颜冠山,刘宗宾,等.基于单成因砂体的三角洲前缘油水运动规律--以渤海湾盆地Z油田东营组二段下亚段为例.石油与天然气地质,2017,38(2):241-247.HAN X F,YAN G S,LIU Z B,et al.Oil-water movement pattern based on research of delta front monogenetic sand:A case study from the E3d2L of Oilfield Z in Bohai Bay Basin.Oil&Gas Geology,2017,38(2):241-247.
[21]甘立琴,苏进昌,谢岳,等.曲流河储层隔夹层研究--以秦皇岛32-6油田为例.岩性油气藏,2017,29(6):128-134.GAN L Q,SU J C,XIE Y,et al.Interlayers of meandering river reservoir:a case from Qinhuangdao 32-6 oilfield.Lithologic Reservoirs,2017,29(6):128-134.
[22]LIU J Y,SHAO S,ZHAO J H,et al.The flow unit division in the No.1 fault block of Pubei Oilfield.Advances in Petroleum Exploration and Development,2013,6(2):51-55.
[23]TI G M,OGBE D O,MUNLY W,et al.The use of flow units as a tool for reservoir description:a case study.SPE Formation Evaluation,1995,10(2):122-128.
[2]SAFIN D A,KOROBKIN A P,SITNIKOV A N.Horizontal well water cut estimation due to water coning in heterogeneous formations with vertical flow barriers.SPE 182047,2016.
[3]余成林,国殿斌,熊运斌,等.厚油层内部夹层特征及在剩余油挖潜中的应用.地球科学与环境学报,2012,34(1):35-39.YU C L,GUO D B,XIONG Y B,et al.Characteristics of interbeds in thick reservoir and application in potential tapping of residual oil.Journal of Earth Science and Environment,2012,34(1):35-39.
[4]张建兴,林承焰,张宪国,等.基于储层构型与油藏数值模拟的点坝储层剩余油分布研究.岩性油气藏,2017,29(4):146-153.ZHANG J X,LIN C Y,ZHANG X G,et al.Remaining oil distribution of point bar reservoir based on reservoir architecture and reservoir numerical simulation.Lithologic Reservoirs,2017,29(4):146-153.
[5]MIALL A D.Architectural-element analysis:a new method of facies analysis applied to fluvial deposits.Earth Science Reviews,1985,22:261-308.
[6]ATIENZA J,VITARELLA L,SEGNINI C,et al.An integrated reservoir analysis to evaluate water flooding and define remaining potential of the Teak field,Trinidad&Tobago.SPE 180902,2016.
[7]李岩.扇三角洲前缘储层构型及其控油作用--以赵凹油田赵凹区块核桃园组三段Ⅳ31厚油层为例.岩性油气藏,2017,29(3):132-139.LI Y.Reservoir architecture of fan delta front and its oil-control models:a case of Eh3Ⅳ31reservoir in Zhaowa block of Zhaowa Oilfield,Biyang Depression.Lithologic Reservoirs,2017,29(3):132-139.
[8]LI X Y,QIN R B,GAO Y F,et al.Well logging evaluation of water-flooded layers and distribution rule of remaining oil in marine sandstone reservoirs of the M oilfield in the Pearl River Mouth Basin.Journal of Geophysics and Engineering,2017,14:283-291.
[9]白建平.高含水期水淹层解释方法及储层剩余油分布规律预测研究.北京:中国地质大学(北京),2006.BAI J P.The stages of high water-cut water-flooding interpretation and reservoir remaining oil distribution rule research.Beijing:China University of Geosciences(Beijing),2006.
[10]刘强,余义常,江同文,等.哈得逊油田东河砂岩储层水淹变化机理研究.岩性油气藏,2017,29(2):150-159.LIU Q,YU Y C,JIANG T W,et al.The mechanism of reservoir transition through waterflooding of Donghe sandstone in Hadeson Oilfield.Lithologic Reservoirs,2017,29(2):150-159.
[11]高志勇,周川闽,冯佳睿,等.库存坳陷白垩系巴什基奇克组泥砾的成因机制与厚层状砂体展布.石油学报,2016,37(8):996-1010.GAO Z Y,ZHOU C M,FENG J R,et al.Mechanism and sedimentary environment of the muddy gravel concomitant with thick layer sandstone of Cretaceous in Kuqa Depression.Acta Petrolei Sinica,2016,37(8):996-1010.
[12]宋璠,苏妮娜.辽河油田锦99块扇三角洲前缘储层隔夹层成因与分布.沉积与特提斯地质,2014,34(2):65-71.SONG F,SU N N.Genesis and distribution of the fan delta front barrier interlayers in the Jin-99 block of the Liaohe oil field.Sedimentary Geology and Tethyan Geology,2014,34(2):65-71.
[13]ZEINIJAHROMI A,AL-JASSASI H A,BEGG S,et al.Improving sweep efficiency of edge-water drive reservoir using induced formation damage.Journal of Petroleum Science and Engineering,2015,130:123-129.
[14]王旭影,姜在兴,岳大力,等.河口三角洲河口坝储层内部隔夹层分布样式研究.西南石油大学学报(自然科学版),2017,39(2):9-17.WANG X Y,JIANG Z X,YUE D L,et al.Patterns of barrierinterlayers in mouth bar of fluvial dominated delta reservoirs.Journal of Southwest Petroleum University(Science&Technology Edition),2017,39(2):9-17.
[15]李海燕,高阳,王延杰,等.辫状河储集层夹层发育模式及其对开发的影响--以准噶尔盆地风城油田为例.石油勘探与开发,2015,42(3):364-373.LI H Y,GAO Y,WANG Y J,et al.Intercalation pattern and its impact on development of braided river reservoirs:a case of Fengcheng oilfield,Junggar Basin,NW China.Petroleum Exploration and Development,2015,42(3):364-373.
[16]邓庆杰,胡明毅,胡忠贵,等.浅水三角洲分流河道砂体沉积特征--以松辽盆地三肇凹陷扶Ⅱ-Ⅰ组为例.石油与天然气地质,2015,36(1):118-127.DENG Q J,HU M Y,HU Z G,et al.Sedimentary characteristics of shallow-water delta distributary channel sand bodies:a case fromⅡ-Ⅰformation of Fuyu oil layer in the Sanzhao depression,Songliao Basin.Oil&Gas Geology,2015,36(1):118-127.
[17]高志勇,冯佳睿,周川闽,等.干旱气候环境下季节性河流沉积特征--以库车河剖面下白垩统为例.沉积学报,2014,32(6):1060-1071.GAO Z Y,FENG J R,ZHOU C M,et al.Arid climate seasonal rivers deposition:a case of lower Cretaceous in Kuche river outcrop.Acta Sedimentologica Sinica,2014,32(6):1060-1071.
[18]孙雨,马世忠,丛琳,等.松辽盆地扶新隆起带南部扶余油层沉积特征及沉积模式探讨.沉积学报,2012,30(4):706-715.SUN Y,MA S Z,CONG L,et al.Study on depositional characteristics and model of Fuyu oil layer in the Southern Fuxin uplift of Songliao Basin.Acta Sedimentologica Sinica,2012,30(4):706-715.
[19]庞德新.砂砾岩储层成因差异及其对储集物性的控制效应--以玛湖凹陷玛2井区下乌尔禾组为例.岩性油气藏,2015,27(5):149-154.PANG D X.Sedimentary genesis of sand-conglomerate reservoir and its control effect on reservoir properties:a case study of the lower Urho formation in Ma 2 well block of Mahu depression.Lithologic Reservoirs,2015,27(5):149-154.
[20]韩雪芳,颜冠山,刘宗宾,等.基于单成因砂体的三角洲前缘油水运动规律--以渤海湾盆地Z油田东营组二段下亚段为例.石油与天然气地质,2017,38(2):241-247.HAN X F,YAN G S,LIU Z B,et al.Oil-water movement pattern based on research of delta front monogenetic sand:A case study from the E3d2L of Oilfield Z in Bohai Bay Basin.Oil&Gas Geology,2017,38(2):241-247.
[21]甘立琴,苏进昌,谢岳,等.曲流河储层隔夹层研究--以秦皇岛32-6油田为例.岩性油气藏,2017,29(6):128-134.GAN L Q,SU J C,XIE Y,et al.Interlayers of meandering river reservoir:a case from Qinhuangdao 32-6 oilfield.Lithologic Reservoirs,2017,29(6):128-134.
[22]LIU J Y,SHAO S,ZHAO J H,et al.The flow unit division in the No.1 fault block of Pubei Oilfield.Advances in Petroleum Exploration and Development,2013,6(2):51-55.
[23]TI G M,OGBE D O,MUNLY W,et al.The use of flow units as a tool for reservoir description:a case study.SPE Formation Evaluation,1995,10(2):122-128.