Reservoir architecture pattern analysis of distal shallow water braided delta front: A case study of L18 fault block, Liuxi Oilfield,Raoyang sag,Jizhong Depression
Zhou Lin1, Lü Chuan-Bing2, Ji You-Liang1, Lin Tie-Lin3, Ran Ai-Hua2, Lu Yi-Lun1, Liu Tian-Yi1, Xie Lin-Lin4, Wei Wei4
1 State Key Laboratory of Petroleum Resources and Prospecting,China University of Petroleum(Beijing),Beijing 102249,China; 2 Huabei Oilfield Company,PetroChina,Hebei Renqiu 062552,China; 3 Development Business Department, PetroChina Huabei Oilfield Company, Hebei Renqiu 062552, China; 4 No.3 Oil Recovery Plant of PetroChina Huabei Oilfield,Heibei Hejian 062450,China
Abstract：Core, well logging, 3D seismic data and production dynamic data of L18 fault block in Liuxi Oilfield, Raoyang sag, Jizhong Depression, were used to analyze the facies of distal shallow water braided delta front and architecture pattern of sand body and to establish a refined sedimentary architecture model of distal shallow water braided delta front. The research shows that: (1) The water was at a low level in study area and the delta front was widely developed. The delta front is divided into the proximal, middle and distal belts. Each facies belt varied in thickness, lithology combination and the lateral connectivity of the sand body; (2) The distributary channel in the distal belts was formed under weak hydrodynamics and limited sediment supply, which resulted in a small-scale mouth bar with poor lateral connectivity, and the thick muddy layers deposited between the bars formed the main type of interlayer.(3) The hydrodynamic strength of the distributary channel in the middle belt is moderate, forming bead-like or bifurcated mouth bars. A single mouth bar is composed of 2~4 accretion sand bodies with a dip angle of~2.2°. The muddy layer sdeposited between the accretion sand bodies is the main type of interlayer; (4) Controlled by the strong hydrodynamics, sufficient sediment supply and strong incision effect, the mouth bar stacked with each to form a continuously distributed mouth bar complex. The single mouth bar is composed of multiple accretion sand bodies with a high dip angle of 3.5°. The overflow muds and muddy deposited between accretion sand bodies are the two main types of interlayer developed in the mouth bar.
. Reservoir architecture pattern analysis of distal shallow water braided delta front: A case study of L18 fault block, Liuxi Oilfield,Raoyang sag,Jizhong Depression[J]. JOPC, 2019, 21(6): 959-970.
[1] 陈东阳,王峰,陈洪德,魏新善,孙诗,祝圣贤. 2019. 鄂尔多斯盆地东部府谷天生桥剖面上古生界下石盒子组8段辫状河储层构型表征. 石油与天然气地质, 40(2): 335-345. [Chen D Y,Wang F,Chen H D,Wei X S,Sun S,Zhu S X.2019. Characterization of braided river reservoir architecture of the upper Paleozoic He 8 member on Fugu Tianshengqiao outcrop,eastern Ordos Basin. Oil & Gas Geology, 40(2): 335-345] [2] 冯文杰,芦凤明,吴胜和,张莹,孟庆龙,张可. 2018. 断陷湖盆长轴缓坡辫状河三角洲前缘储层构型研究: 以大港枣园油田枣南断块孔一段枣V油组为例. 中国矿业大学学报, 47(2): 367-379. [Feng W J,Lu F M,Wu S H,Zhang Y,Meng Q L,Zhang K.2018. Reservoir architecture analysis of braided delta front developed in the long axis gentle slope of faulted basin: A case study of the fifth Zaoyuan formation,Zaonan fault block,Zaoyuan oilfield,Dagang. Journal of China University of Mining & Technology, 47(2): 367-379] [3] 纪友亮,杜金虎,赵贤正,张以明,张瑞峰. 2007. 饶阳凹陷古近系层序发育的控制因素分析. 沉积学报, 25(2): 161-168. [Ji Y L,Du J H,Zhao X Z,Zhang Y M,Zhang R F.2007. Sequence stratigraphy models and controlling factors of eogene in Raoyang Depression,Acta Sedimentologica Sinica,25(2): 161-168] [4] 靳军,刘大卫,纪友亮,杨召,高崇龙,王剑,段小兵,桓芝俊,罗妮娜. 2019. 砾质辫状河型冲积扇岩相类型、成因及分布规律研究: 以准噶尔盆地西北缘现代白杨河冲积扇为例. 沉积学报, 37(2): 254-267. [Jin J,Liu D W,Ji Y L,Yang Z,Gao C L,Wang J,Duan X B,Huan Z J,Luo N N.2019. Research on the lithofacies types,cause mechanism and distribution of gravel braided-river alluvial fan: A case study of modern Poplar-river alluvial fan,northwestern of Junggar Basin. Acta Sedimentologica Sinica,37(2): 254-267] [5] 李峰峰,李军,高志前,毛丽华. 2016. 浅水辫状河三角洲前缘沉积特征及储层砂体预测: 以黄骅坳陷埕北低断阶沙二段为例.
东北石油大学学报, 40(6): 74-81+105. [Li F F,Li J,Gao Z Q,Mao L H.2016. Sedimentary characteristics and reservoir prediction of shallow water braided river delta front: An example from Sha2 member of Chengbei low step fault block,Huanghua Depression. Journal of Northeast Petroleum University, 40(6): 74-81+105] [6] 李国艳,董伟,孙康,谢爽,甘霖,熊俊. 2010. 留西油田沙三上亚段沉积微相与含油性关系研究. 石油地质与工程, 24(6): 26-28. [Li G Y,Dong W,Sun K,Xie S,Gan L,Xiong J.2010. Study on the relationship between sedimentary microfacies and oil-bearing properties in the upper member of Shahejie formation in Liuxi Oilfield. Petroleum Geology and Engineering, 24(6): 26-28] [7] 刘大卫,纪友亮,高崇龙,靳军,杨召,段小兵,桓芝俊,罗妮娜. 2018. 砾质辫状河型冲积扇沉积微相及沉积模式: 以准噶尔盆地西北缘现代白杨河冲积扇为例. 古地理学报, 20(3): 435-451. [Liu D W,Ji Y L,Gao C L,Jin J,Yang Z,Duan X B,Huan Z J,Luo N N.2018. Microfacies and sedimentary models of gravelly braided-river alluvial fan: A case study of modern Baiyanghe-river alluvial fan in northwestern margin of Junggar Basin. Journal of Palaeogeography(Chinese Edition), 20(3): 435-451] [8] 刘君龙,纪友亮,杨克明,周勇,陈贤良,高崇龙,贾浪波. 2015. 浅水湖盆三角洲岸线控砂机理与油气勘探意义: 以川西坳陷中段蓬莱镇组为例. 石油学报, 36(9): 1060-1073+1155. [Liu J L,Ji Y L,Yang K M,Zhou Y,Chen X L,Gao C L,Jia L B.2015. Mechanism of lake shoreline control on shoal water deltaic sandbodies and its significance for petroleum exploration: A case study of Penglaizhen formation in the middle part of western Sichuan depression. Acta Petrolei Sinica, 36(9): 1060-1073+1155] [9] 刘君龙,孙冬胜,纪友亮,朱宏权,于海跃,王天云. 2018. 川西晚侏罗世前陆盆地浅水三角洲砂体分布特征与叠置模式. 石油与天然气地质, 39(6): 1164-1178. [Liu J L,Sun D S,Ji Y L,Zhu H Q,Yu H Y,Wang T Y.2018. Distribution characteristics and superimposition pattern of the Late Jurassic shallow water deltic sand body in the foreland basin of western Sichuan Depression. Oil & Gas Geology, 39(6): 1164-1178] [10] 刘钰铭,侯加根,宋保全,周新茂,陈宏魁,张腊梅. 2011. 辫状河厚砂层内部夹层表征: 以大庆喇嘛甸油田为例. 石油学报, 32(5): 836-841. [Liu Y M,Hou J G,Song B Q,Zhou X M,Chen H K,Zhang L M.2011. Characterization of interlayers within braided-river thick sandstones: A case study on the Lamadian Oilfield in Daqing. Acta Petrolei Sinica, 32(5): 836-841] [11] 刘自亮. 2009. 三角洲前缘储集砂体的成因组合与分布规律: 以松辽盆地大老爷府地区白垩系泉头组四段为例. 沉积学报, 27(1): 32-40. [Liu Z L.2009. Delta front sandbody genetic assemblages and their distribution patterns of the 4th member of Quantou formation in Dalaoyefu Oilfield,southern Songliao Basin,China. Acta Sedimentologica Sinica, 27(1): 32-40] [12] 吕传炳,程同冉,张峰,纪友亮,梁官忠,李彦国. 2016. 浅水三角洲沉积特征及其油气勘探意义: 以渤海湾盆地霸县凹陷岔河集构造带沙一上亚段为例. 新疆石油地质, 37(6): 625-630. [Lü C B,Cheng T R,Zhang F,Ji Y L,Liang G Z,Li Y G.2016. Depositional characteristics and hydrocarbon exploration significance of shallow-water deltas: A case study of Upper Sha-1 member in Chaheji structural belt of Baxian Sag,Bohai Bay Basin. Xinjiang Petroleum Geology, 37(6): 625-630] [13] 倪超,纪友亮. 2006. 饶阳凹陷古近系沙河街组层序地层分析及沉积体系研究. 中国地质, (1): 193-200. [Ni C,Ji Y L.2006. Sequence stratigraphy and sedimentary system of the Paleogene Shahejie formation in the Raoyang Subbasin. Chinese Geology,(1): 193-200] [14] 乔雨朋,邵先杰,接敬涛,李士才,谢启红,张珉,梁武斌. 2016. 远源砂质辫状河储层构型及控制因素: 以秦皇岛32-6油田为例. 油气地质与采收率, 23(1): 46-52. [Qiao P Y,Shao X J,Jie J T,Li S C,Xie Q H,Zhang M,Liang W B.2016. Architecture analysis and controlling factor on far source sandy braided river reservoir-A case study of Qinhuangdao32-6 Oilfield. Petroleum Geology and Recovery Efficiency, 23(1): 46-52] [15] 乔雨朋,邱隆伟,邵先杰,王军,宋璠,王晔磊,汤丽莉,张以根. 2017. 辫状河储层构型表征研究进展. 油气地质与采收率, 24(6): 34-42. [Qiao Y P,Qiu L W,Shao X J,Wang J,Song F,Wang Y L,Tang L L,Zhang Y G.2017. Research progress on characterization of braided river reservoir architecture. Petroleum Geology and Recovery Efficiency, 24(6): 34-42] [16] 秦国省,吴胜和,宋新民,邹存友,郑联勇,陈诚. 2017. 远源细粒辫状河三角洲沉积特征与单砂体构型分析. 中国石油大学学报(自然科学版), 41(6): 9-19. [Qin G S,Wu S H,Song X M,Zou C Y,Zheng L Y,Chen C.2017. Sedimentary characteristics of distal fine-grain braided delta and architecture analysis of single sand body. Journal of China University of Petroleum, 41(6): 9-19] [17] 宋子怡,陈德坡,邱隆伟,乔雨朋,宋璠,刘卫. 2019. 孤东油田六区馆上段远源砂质辫状河心滩构型分析. 油气地质与采收率, 26(2): 68-75. [Song Z Y,Chen D P,Qiu L W,Qiao Y P,Song F,Liu W.2019. Architecture of braid bars of distal sandy river in the upper section of Guantao formation,No.6 block of Gudong Oilfield. Petroleum Geology and Recovery Efficiency, 26(2): 68-75] [18] 王建民,吴昌荣. 2007. 陕北东部地区长2+3油层组远源砂质辫状河沉积特征. 矿物岩石,(4): 92-97. [Wang J M,Wu C R.2007. Sedimentary characteristics of far-resource sand-braided river with low curvature channel for the Chang 2+3 oil reservoir in the east of Shaanxi Province. Journal of Mineralogy and Petrology,(4): 92-97] [19] 王石,万琼华,陈玉琨,李学伟,梁杰. 2015. 基于辫状河储层构型的流动单元划分及其分布规律. 油气地质与采收率, 22(5): 47-51+68. [Wang S,Wan Q H,Chen Y G,Li X W,Liang J.2015. Flow units division and their distribution law based on braided river reservoir architecture. Petroleum Geologyand Recovery Efficiency, 22(5): 47-51+68] [20] 杨帆,曹正林,卫延召,路琳琳,吴爱成,马丽亚,王瑞菊. 2019. 玛湖地区三叠系克拉玛依组浅水辫状河三角洲沉积特征. 岩性油气藏, 31(1): 30-39. [Yang F,Cao Z L,Wei Y Z,Lu L L,Wu A C,Ma L Y,Wang R J.2019. Sedimentary characteristics of shallow-water braided delta of Karamay formation in Mahu area. Lithologic Reservoirs, 31(1): 30-39] [21] 赵国祥,官大勇,刘朋波,黄颖,刘丹丹. 2018. 庙西南凸起馆陶组浅水辫状河三角洲沉积特征及砂体演化. 沉积学报, 36(4): 807-817. [Zhao G X,Guan D Y,Liu P B,Huang Y,Liu D D.2018. Sedimentary characteristics and sand body evolution of shallow braided river delta of Guantao formation in Miaoxi’nan uplift,Bohai Sea area. Acta Sedimentologica Sinica, 36(4): 807-817] [22] 朱兆群,林承焰,张宪国,李志鹏,谢晶晶,魏肃东,程平. 2017. 断陷湖盆早期浅水三角洲沉积: 以高邮凹陷永安地区戴一段为例. 吉林大学学报(地球科学版), 47(3): 659-673. [Zhu Z Q,Lin C Y,Zhang X G,Li Z P,Xie J J,Wei S D,Cheng P.2017. Shallow-Water delta deposits in a rifting lacustrine basin during early stage: A case study of the first member of Dainan formation at Yong’an area,Gaoyou Sag. Journal of Jilin University, 47(3): 659-673] [23] Allen J R L.1977. The plan shape of current ripples in relation to flow conditions. Sedimentology, 24(1): 53-62. [24] Fisk H N.1960. Bar-finger sands of mississippi delta. AAPG Bulletin, 44(7): 1249-1249. [25] Mcpherson J G,Shanmugam G,Moiola R J.1987. Fan-deltas and braid deltas: Varieties of coarse-grained deltas. Geological Society of America Bulletin, 99(3): 331-340. [26] Miall A D.1985. Architectural-element analysis: A new method of facies analysis applied to fluvial deposits. Earth Science Reviews, 22(4): 261-308.
