本文主要研究内容
作者商宗龙(2019)在《辫状河三角洲沉积砂体构型与非均质性研究》一文中研究指出:塔河油田1区位于塔里木盆地北部轮台县与库车县交界处,三叠系阿克库勒组下油组是其主要含油层系之一,储集层主要为辫状河三角洲砂体,非均质性强。该区标定采收率44.7%,目前采出程度仅为32%,剩余可采储量为125万吨,具有较大的剩余油挖掘潜力。但因钻井少、井距大、地震分辨率低,稀井网条件下辫状河三角洲砂体构型刻画精度不足,从而制约勘探开发进程的推进。因此,本论文以Miall构型理论为指导,在对塔河1区下油组砂体构型研究的基础上,选择具有相似辫状河三角洲沉积背景的露头剖面进行地质调查与测绘,明确辫状河三角洲沉积构型单元和构型模式,优选构型单元规模参数,建立该区辫状河三角洲沉积构型单元规模参数和地质知识库,指导塔河1区稀井网条件下辫状河三角洲砂体构型的研究及精细地质建模,为制定合理的开发调整方案提供地质依据。塔河1区下油组发育辫状河三角洲平原亚相和前缘亚相沉积,主要构型单元为辫状分流河道、心滩、水下分流河道以及河口坝。选择山西保德扒楼沟山西组剖面、山西大同云冈组剖面、甘肃崇信汭水河延长组剖面、延安甘谷驿延河延长组剖面等共计4条露头剖面进行砂体构型研究。山西保德扒楼沟山西组剖面发育辫状河三角洲前缘亚相沉积,可以划分为层系、层系组、河口坝/水下分流河道增生体、河口坝/水下分流河道、单期水下分流河道5级构型单元。单期水下分流河道砂体厚度0.9~4.5m,平均厚度2.1m;宽度7~23m,平均宽度14.7m;宽厚比5.4~8,平均7.2;单期河口坝砂体厚度1.5~2.1m,平均厚度1.7m;宽度11~22m,平均宽度17m;宽厚比7.5~12,平均9.6。山西大同云冈组剖面发育近源辫状河三角洲平原亚相上游沉积。砂体构型单元在横向上的拼接关系有四种:CH/ACH—PB、CH—CB—CH、CH—OF—CH、CH/ACH—PB—OF。单期辫状分流河道砂体厚度2.0~6.5m,宽度50~180m,宽厚比25~30;单期心滩砂体厚度2.5~7.0m,宽度70~240m,宽厚比30~35。甘肃崇信汭水河延长组长8—长6剖面为浅水型辫状河三角洲前缘亚相沉积。共识别出7中岩相类型,水下分流河道、河口坝、水下天然堤以及分流间湾等四种构型单元,构型单元垂向叠置方式分为叠置型、冲刷充填型、孤立式。延安甘谷驿延河延长组长2剖面为富砂低弯度辫状河三角洲冲积平原下游沉积。识别出7种主要岩相类型以及辫状分流河道、心滩、河漫滩三种构型单元。单期河道的层厚2.5~6.8m,宽度60~180m,宽厚比25~30。单期心滩层厚2.8~7.5m,宽度80~250m,宽厚比30~35。控制辫状河三角洲砂体构型的主要因素有构造运动、河水流量、气候条件以及沉积基准面变化等。其中山西保德扒楼沟山西组剖面和山西大同云冈组剖面与塔河1区下油组储层具有相似的沉积背景和水动力条件,分别构建了辫状河三角洲平原亚相、前缘亚相砂体构型分布模式并建立其构型单元参数模型,研究结果为塔河1区的剩余油挖掘以及稀井网条件下辫状河三角洲砂体构型建模具有一定的借鉴意义。
Abstract
da he you tian 1ou wei yu da li mu pen de bei bu lun tai xian yu ku che xian jiao jie chu ,san die ji a ke ku le zu xia you zu shi ji zhu yao han you ceng ji zhi yi ,chu ji ceng zhu yao wei bian zhuang he san jiao zhou sha ti ,fei jun zhi xing jiang 。gai ou biao ding cai shou lv 44.7%,mu qian cai chu cheng du jin wei 32%,sheng yu ke cai chu liang wei 125mo dun ,ju you jiao da de sheng yu you wa jue qian li 。dan yin zuan jing shao 、jing ju da 、de zhen fen bian lv di ,xi jing wang tiao jian xia bian zhuang he san jiao zhou sha ti gou xing ke hua jing du bu zu ,cong er zhi yao kan tan kai fa jin cheng de tui jin 。yin ci ,ben lun wen yi Miallgou xing li lun wei zhi dao ,zai dui da he 1ou xia you zu sha ti gou xing yan jiu de ji chu shang ,shua ze ju you xiang shi bian zhuang he san jiao zhou chen ji bei jing de lou tou pou mian jin hang de zhi diao cha yu ce hui ,ming que bian zhuang he san jiao zhou chen ji gou xing chan yuan he gou xing mo shi ,you shua gou xing chan yuan gui mo can shu ,jian li gai ou bian zhuang he san jiao zhou chen ji gou xing chan yuan gui mo can shu he de zhi zhi shi ku ,zhi dao da he 1ou xi jing wang tiao jian xia bian zhuang he san jiao zhou sha ti gou xing de yan jiu ji jing xi de zhi jian mo ,wei zhi ding ge li de kai fa diao zheng fang an di gong de zhi yi ju 。da he 1ou xia you zu fa yo bian zhuang he san jiao zhou ping yuan ya xiang he qian yuan ya xiang chen ji ,zhu yao gou xing chan yuan wei bian zhuang fen liu he dao 、xin tan 、shui xia fen liu he dao yi ji he kou ba 。shua ze shan xi bao de ba lou gou shan xi zu pou mian 、shan xi da tong yun gang zu pou mian 、gan su chong xin rui shui he yan chang zu pou mian 、yan an gan gu yi yan he yan chang zu pou mian deng gong ji 4tiao lou tou pou mian jin hang sha ti gou xing yan jiu 。shan xi bao de ba lou gou shan xi zu pou mian fa yo bian zhuang he san jiao zhou qian yuan ya xiang chen ji ,ke yi hua fen wei ceng ji 、ceng ji zu 、he kou ba /shui xia fen liu he dao zeng sheng ti 、he kou ba /shui xia fen liu he dao 、chan ji shui xia fen liu he dao 5ji gou xing chan yuan 。chan ji shui xia fen liu he dao sha ti hou du 0.9~4.5m,ping jun hou du 2.1m;kuan du 7~23m,ping jun kuan du 14.7m;kuan hou bi 5.4~8,ping jun 7.2;chan ji he kou ba sha ti hou du 1.5~2.1m,ping jun hou du 1.7m;kuan du 11~22m,ping jun kuan du 17m;kuan hou bi 7.5~12,ping jun 9.6。shan xi da tong yun gang zu pou mian fa yo jin yuan bian zhuang he san jiao zhou ping yuan ya xiang shang you chen ji 。sha ti gou xing chan yuan zai heng xiang shang de pin jie guan ji you si chong :CH/ACH—PB、CH—CB—CH、CH—OF—CH、CH/ACH—PB—OF。chan ji bian zhuang fen liu he dao sha ti hou du 2.0~6.5m,kuan du 50~180m,kuan hou bi 25~30;chan ji xin tan sha ti hou du 2.5~7.0m,kuan du 70~240m,kuan hou bi 30~35。gan su chong xin rui shui he yan chang zu chang 8—chang 6pou mian wei jian shui xing bian zhuang he san jiao zhou qian yuan ya xiang chen ji 。gong shi bie chu 7zhong yan xiang lei xing ,shui xia fen liu he dao 、he kou ba 、shui xia tian ran di yi ji fen liu jian wan deng si chong gou xing chan yuan ,gou xing chan yuan chui xiang die zhi fang shi fen wei die zhi xing 、chong shua chong tian xing 、gu li shi 。yan an gan gu yi yan he yan chang zu chang 2pou mian wei fu sha di wan du bian zhuang he san jiao zhou chong ji ping yuan xia you chen ji 。shi bie chu 7chong zhu yao yan xiang lei xing yi ji bian zhuang fen liu he dao 、xin tan 、he man tan san chong gou xing chan yuan 。chan ji he dao de ceng hou 2.5~6.8m,kuan du 60~180m,kuan hou bi 25~30。chan ji xin tan ceng hou 2.8~7.5m,kuan du 80~250m,kuan hou bi 30~35。kong zhi bian zhuang he san jiao zhou sha ti gou xing de zhu yao yin su you gou zao yun dong 、he shui liu liang 、qi hou tiao jian yi ji chen ji ji zhun mian bian hua deng 。ji zhong shan xi bao de ba lou gou shan xi zu pou mian he shan xi da tong yun gang zu pou mian yu da he 1ou xia you zu chu ceng ju you xiang shi de chen ji bei jing he shui dong li tiao jian ,fen bie gou jian le bian zhuang he san jiao zhou ping yuan ya xiang 、qian yuan ya xiang sha ti gou xing fen bu mo shi bing jian li ji gou xing chan yuan can shu mo xing ,yan jiu jie guo wei da he 1ou de sheng yu you wa jue yi ji xi jing wang tiao jian xia bian zhuang he san jiao zhou sha ti gou xing jian mo ju you yi ding de jie jian yi yi 。
论文参考文献
论文详细介绍
论文作者分别是来自长安大学的商宗龙,发表于刊物长安大学2019-11-04论文,是一篇关于塔河一区论文,辫状河三角洲论文,砂体构型论文,构型单元论文,非均质性论文,长安大学2019-11-04论文的文章。本文可供学术参考使用,各位学者可以免费参考阅读下载,文章观点不代表本站观点,资料来自长安大学2019-11-04论文网站,若本站收录的文献无意侵犯了您的著作版权,请联系我们删除。
标签:塔河一区论文; 辫状河三角洲论文; 砂体构型论文; 构型单元论文; 非均质性论文; 长安大学2019-11-04论文;