涠洲A油田流沙港组一段Ⅱ油组沉积微相及优质储层预测
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摘要
通过岩性、粒度、沉积构造和测井相分析,结合区域地质认识对涠洲A油田流沙港组一段Ⅱ油组的沉积微相进行研究,认为研究区为扇三角洲沉积,主要发育扇三角洲前缘辫状水道、辫流坝、河口坝、席状砂和水道间沉积微相,通过"点-线-面"的研究思路得到其沉积微相平面展布。同时还探讨了其沉积模式和演化规律。通过"叠合法"将L_1Ⅱ油组砂岩厚度图、沉积微相图、物性分布图三者进行叠合,进而得到其优质储层展布范围,为油田后续储层地质建模、开发方案的制定、调整和优化提供依据。
Through the lithologic analysis,grain size analysis,sedimentary structure and logfacies analysis,combined with regional geological background and previous research results,it determines that the region mainly develops the fan delta sedimentary system of Liushagang Ⅱformation in Weizhou A oilfield.The main microfacies includes braided channel,braided flow bar,channel mouth bar,sand sheet,bay beside distributary channel of fan delta front.the plane distribution of sedimentary microfacies is obtained through the research approach "point-linesurface".At the same time,the sedimentary model and evolution law are also discussed.The high quality reservoirs distribution was obtained through the sandstone thickness,sedimentary microfacies and physical distribution map of L_1Ⅱ oil group overlapping,which provided the theoretical basis for the formulation and adjustment of the reservoir geological modeling and development plan.
Through the lithologic analysis,grain size analysis,sedimentary structure and logfacies analysis,combined with regional geological background and previous research results,it determines that the region mainly develops the fan delta sedimentary system of Liushagang Ⅱformation in Weizhou A oilfield.The main microfacies includes braided channel,braided flow bar,channel mouth bar,sand sheet,bay beside distributary channel of fan delta front.the plane distribution of sedimentary microfacies is obtained through the research approach "point-linesurface".At the same time,the sedimentary model and evolution law are also discussed.The high quality reservoirs distribution was obtained through the sandstone thickness,sedimentary microfacies and physical distribution map of L_1Ⅱ oil group overlapping,which provided the theoretical basis for the formulation and adjustment of the reservoir geological modeling and development plan.
引文
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13吕成福,陈国俊,杜贵超,等.酒东坳陷营尔凹陷下白垩统储层孔隙特征及其影响因素研究.沉积学报,2010;28(3):556-562LüChengfu,Chen Guojun,Du Guichao,et al.Characteristics of pore evolution and its controls of lower Cretaceous reservoir in Ying'er depression,Jiudong Basin.Acta Sedimentologica Sinica,2010;28(3):556-562
2袁静,杨学君,路智勇,等.东营凹陷盐22块沙四上亚段砂砾岩粒度概率累积曲线特征.沉积学报,2011;29(5):815-824Yuan Jing,Yang Xuejun,Lu Zhiyong,et al.Probability cumulative grain size curves in sandy conglomerate of the upper Es4 in Yan 22block,Dongying depression.Acta Sedimentologica Sinica,2011;29(5):815-824
3曾小明,张辉,彭松,等.涠洲12-A油田流二段Ⅱ油组沉积特征及演化.沉积学报,2015;33(1):153-159Zeng Xiaoming,Zhang Hui,Peng Song,et al.Sedimentary characteristics and evolution of the 2nd oil series in the 2nd Member of Liushagang Formation in Weizhou 12-A oilfield.Acta Sedimentologica Sinica,2015;33(1):153-159
4宿赛,李维锋,高立群.南图尔盖盆地北诺扎里油田中侏罗统DOSHAN组扇三角洲沉积及沉积演化.科学技术与工程,2015;15(1):189-194Su Sai,Li Weifeng,Gao Liqun.Research of ran deltas sedimentary and evolution in Duoshang Group NN Oilfield in middle Jurassic of Turgay Basin.Science Technology and Engineering,2015;15(1):189-194
5肖佃师,卢双舫,陈海峰,等.大庆长垣以西泉四段浅水三角洲沉积特征及模式.科学技术与工程,2011;11(21):4986-4993Xiao Dianshi,Lu Shuangfang,Chen Haifeng,et al.Sedimentary characteristics and model of shallow delta of quan-4 Member in the west of Daqing placanticline.Science Technology and Engineering,2011;11(21):4986-4993
6刘行军,柳晓燕,成军军,等.苏里格中西部地区石盒子组盒8段测井相分析.测井技术,2008;32(6):538-541Liu Hangjun,Liu Xiaoyan,Cheng Junjun,et al.Logging facies analysis on Shihezi formation he8 section in central and western Sulige area.Well Logging Technology,2008;32(6):538-541
7李永杰,赵荣华.鄂尔多斯盆地杭锦旗地区上古生界储层自然伽马测井相研究.石油地质与工程,2014;28(2):61-66Li Yongjie,Zhao Ronghua.Study on natural gamma logging facies of upper Paleozoic reservoir in Hangjinqi area,Ordos basin.Petroleum Geology and Engineering,2014;28(2):61-66
8杨玉卿,崔维平,蔡军,等.北部湾盆地涠西南凹陷WZ油田古近系流沙港组一段沉积相.古地理学报,2012;14(5):607-616Yang Yuqing,Cui Weiping,Cai Jun,et al.Sedimentary facies of the member 1 of paleogene Liushagang formation of WZ oilfield in Weixinan sag,Beibuwan Basin.Journal of Palaeogeography,2012;14(5):607-616
9李茂,李胜利,姜平,等.北部湾盆地涠西南凹陷涠11区流一段扇三角洲沉积特征及控制因素.现代地质,2013;27(4):915-924Li Mao,Li Shengli,Jiang Ping,et al.Sedimentary facies of the member 1 of paleogene liushagang formation of WZ oilfield in Weixinan sag,Beibuwan Basin.Geoscience,2013;27(4):915-924
10孙文钊,王传雷,杨希滨.北部湾盆地涠西南凹陷始新统隐蔽油气藏类型及勘探方向.天然气地球科学,2007;18(1):84-88Sun Wenzhao,Wang Chuanlei,Yang Xibin.Types and favorable exploration areas of Eocene subtle traps in Weixinan sag,BBW Basin.Natural Gas Geoscience,2007;18(1):84-88
11于兴河,李胜利,李顺利.三角洲沉积的结构-成因分类与编图方法.沉积学报,2013;31(5):782-797Yu Xinghe,Li Shengli,Li Shunli.Texture-genetic classifications and mapping methods for deltaic deposits.Acta Sedimentologica Sinica,2013;31(5):782-797
12曾小明,邹明生,张辉,等.北部湾盆地乌石凹陷东区流沙港组三段储层物性主控因素及分布规律.石油实验地质,2016;38(6):757-764Zeng Xiaoming,Zou Mingsheng,Zhang Hui,et al.Main controls on the distribution of the 3rd member of Liushagang formation in eastern Wushi sag,Beibu Gulf Basin.Petroleum Geology&Experiment,2016;38(6):757-764
13吕成福,陈国俊,杜贵超,等.酒东坳陷营尔凹陷下白垩统储层孔隙特征及其影响因素研究.沉积学报,2010;28(3):556-562LüChengfu,Chen Guojun,Du Guichao,et al.Characteristics of pore evolution and its controls of lower Cretaceous reservoir in Ying'er depression,Jiudong Basin.Acta Sedimentologica Sinica,2010;28(3):556-562