本文主要研究内容
作者苏帅亦（2019）在《莱州湾凹陷南部古近系沙河街组储层研究》一文中研究指出：莱州湾南部地区位于渤海南部海域莱州湾凹陷南部,莱州湾凹陷夹于郯庐走滑断裂渤南段东、西两支走滑断裂之间,是渤海油田近几年的重点勘探区域,沙河街组是莱州湾凹陷的主力产油层段。但是莱州湾南部地区勘探程度较低,油藏地质条件复杂,断层多,探井数量较少,且由于工程原因,钻井多处于构造高部位,导致对优质储层分布规律认识不清。因此开展古近系沙河街组层序地层格架内的优质储层展布研究,查明研究区古近系沙河街组优质储层展布规律,可以为提高勘探成功率、降低勘探风险奠定坚实的地质基础。本文以莱州湾凹陷南部地区古近系沙河街组储层为研究对象,通过岩心描述、薄片鉴定、扫描电镜观察、X衍射分析、压汞分析等资料的综合分析,查明了莱州湾凹陷南部地区古近系沙河街组储层的岩石类型及特征,确定了成岩相类型,总结了储集空间结构及特征,明确了储层物性特征及纵横向分布规律,探讨了研究区储层的控制因素,提出了适合研究区的优质储层评价标准,确定了优质储层的展布范围,指出了下一步勘探的有利区带。取得的结果认识如下。研究区储层的岩石类型主要为岩屑质长石砂岩和长石质岩屑砂岩。填隙物有杂基和胶结物,胶结物类型丰富,包括黏土矿物胶结、碳酸盐胶结、硅质胶结。黏土矿物胶结最为常见,硅质胶结较为少见。总体上为低成分成熟度,低结构成熟度砂岩。成岩作用包括压实作用、溶解作用、胶结作用、交代作用、破碎作用,根据成岩阶段划分标准,研究区碎屑岩成岩作用阶段为早成岩B期到中成岩A期。从实际勘探角度出发,结合研究区实际情况,将成岩相划分为中等压实-黏土矿物胶结-中等溶蚀-裂缝相、中等压实-黏土矿物胶结-中等溶蚀相、中等压实-碳酸盐胶结-中等溶蚀-裂缝相及中等压实-硅质胶结-中等溶蚀相四种类型。储集空间包括原生孔隙、次生孔隙、裂缝等3类7种。储层的储集空间主要为次生孔隙和裂缝。孔隙分为三种类型:Ⅰ类孔隙,孔隙半径大,排替压力小,孔隙连通性较好,是研究区储集性能最好的孔隙结构类型。Ⅱ类孔隙,孔隙半径较大但不如Ⅰ类孔隙,排替压力中等,孔隙连通性一般,是研究区储集性能中等的孔隙结构类型。Ⅲ类孔隙,孔隙半径小,排替压力高,孔隙联通性差储集性性能差,是储集性能最差的一类孔隙结构类型。沿斜坡内带、斜坡外带、斜坡次凸储层物性逐渐变差。随埋深的增加储层孔隙度、渗透率逐渐降低。储层受沉积作用、成岩作用及构造作用的影响。水下分支河道和河口沙坝的砂岩分选较好,是储集性能较好的储集体,有利于优质储层的发育。成岩作用中溶蚀作用对储层起建设性作用,胶结作用和压实作用对储层起破坏性作用。构造作用形成的裂缝既是储集空间,又能连通孤立孔隙,极大改善储层的储集性能。储层类型分为三种,Ⅰ类储层是研究区评价最好的储层。Ⅱ类储层评价中等,Ⅲ类储层评价差。Ⅰ类储层和Ⅱ类储层是优质储层。Ⅰ类储层集中分布在研究区的西南侧,属斜坡外带的长源优质储层。Ⅱ类储层主要分布在东部和南部的扇三角洲沉积以及西部辫状河三角洲的局部区域。最优储层分布在研究区西南侧,是下一步勘探开发的重点区域。
Abstract
lai zhou wan na bu de ou wei yu bo hai na bu hai yu lai zhou wan ao xian na bu ,lai zhou wan ao xian ga yu tan lu zou hua duan lie bo na duan dong 、xi liang zhi zou hua duan lie zhi jian ,shi bo hai you tian jin ji nian de chong dian kan tan ou yu ,sha he jie zu shi lai zhou wan ao xian de zhu li chan you ceng duan 。dan shi lai zhou wan na bu de ou kan tan cheng du jiao di ,you cang de zhi tiao jian fu za ,duan ceng duo ,tan jing shu liang jiao shao ,ju you yu gong cheng yuan yin ,zuan jing duo chu yu gou zao gao bu wei ,dao zhi dui you zhi chu ceng fen bu gui lv ren shi bu qing 。yin ci kai zhan gu jin ji sha he jie zu ceng xu de ceng ge jia nei de you zhi chu ceng zhan bu yan jiu ,cha ming yan jiu ou gu jin ji sha he jie zu you zhi chu ceng zhan bu gui lv ,ke yi wei di gao kan tan cheng gong lv 、jiang di kan tan feng xian dian ding jian shi de de zhi ji chu 。ben wen yi lai zhou wan ao xian na bu de ou gu jin ji sha he jie zu chu ceng wei yan jiu dui xiang ,tong guo yan xin miao shu 、bao pian jian ding 、sao miao dian jing guan cha 、Xyan she fen xi 、ya gong fen xi deng zi liao de zeng ge fen xi ,cha ming le lai zhou wan ao xian na bu de ou gu jin ji sha he jie zu chu ceng de yan dan lei xing ji te zheng ,que ding le cheng yan xiang lei xing ,zong jie le chu ji kong jian jie gou ji te zheng ,ming que le chu ceng wu xing te zheng ji zong heng xiang fen bu gui lv ,tan tao le yan jiu ou chu ceng de kong zhi yin su ,di chu le kuo ge yan jiu ou de you zhi chu ceng ping jia biao zhun ,que ding le you zhi chu ceng de zhan bu fan wei ,zhi chu le xia yi bu kan tan de you li ou dai 。qu de de jie guo ren shi ru xia 。yan jiu ou chu ceng de yan dan lei xing zhu yao wei yan xie zhi chang dan sha yan he chang dan zhi yan xie sha yan 。tian xi wu you za ji he jiao jie wu ,jiao jie wu lei xing feng fu ,bao gua nian tu kuang wu jiao jie 、tan suan yan jiao jie 、gui zhi jiao jie 。nian tu kuang wu jiao jie zui wei chang jian ,gui zhi jiao jie jiao wei shao jian 。zong ti shang wei di cheng fen cheng shou du ,di jie gou cheng shou du sha yan 。cheng yan zuo yong bao gua ya shi zuo yong 、rong jie zuo yong 、jiao jie zuo yong 、jiao dai zuo yong 、po sui zuo yong ,gen ju cheng yan jie duan hua fen biao zhun ,yan jiu ou sui xie yan cheng yan zuo yong jie duan wei zao cheng yan Bji dao zhong cheng yan Aji 。cong shi ji kan tan jiao du chu fa ,jie ge yan jiu ou shi ji qing kuang ,jiang cheng yan xiang hua fen wei zhong deng ya shi -nian tu kuang wu jiao jie -zhong deng rong shi -lie feng xiang 、zhong deng ya shi -nian tu kuang wu jiao jie -zhong deng rong shi xiang 、zhong deng ya shi -tan suan yan jiao jie -zhong deng rong shi -lie feng xiang ji zhong deng ya shi -gui zhi jiao jie -zhong deng rong shi xiang si chong lei xing 。chu ji kong jian bao gua yuan sheng kong xi 、ci sheng kong xi 、lie feng deng 3lei 7chong 。chu ceng de chu ji kong jian zhu yao wei ci sheng kong xi he lie feng 。kong xi fen wei san chong lei xing :Ⅰlei kong xi ,kong xi ban jing da ,pai ti ya li xiao ,kong xi lian tong xing jiao hao ,shi yan jiu ou chu ji xing neng zui hao de kong xi jie gou lei xing 。Ⅱlei kong xi ,kong xi ban jing jiao da dan bu ru Ⅰlei kong xi ,pai ti ya li zhong deng ,kong xi lian tong xing yi ban ,shi yan jiu ou chu ji xing neng zhong deng de kong xi jie gou lei xing 。Ⅲlei kong xi ,kong xi ban jing xiao ,pai ti ya li gao ,kong xi lian tong xing cha chu ji xing xing neng cha ,shi chu ji xing neng zui cha de yi lei kong xi jie gou lei xing 。yan xie po nei dai 、xie po wai dai 、xie po ci tu chu ceng wu xing zhu jian bian cha 。sui mai shen de zeng jia chu ceng kong xi du 、shen tou lv zhu jian jiang di 。chu ceng shou chen ji zuo yong 、cheng yan zuo yong ji gou zao zuo yong de ying xiang 。shui xia fen zhi he dao he he kou sha ba de sha yan fen shua jiao hao ,shi chu ji xing neng jiao hao de chu ji ti ,you li yu you zhi chu ceng de fa yo 。cheng yan zuo yong zhong rong shi zuo yong dui chu ceng qi jian she xing zuo yong ,jiao jie zuo yong he ya shi zuo yong dui chu ceng qi po huai xing zuo yong 。gou zao zuo yong xing cheng de lie feng ji shi chu ji kong jian ,you neng lian tong gu li kong xi ,ji da gai shan chu ceng de chu ji xing neng 。chu ceng lei xing fen wei san chong ,Ⅰlei chu ceng shi yan jiu ou ping jia zui hao de chu ceng 。Ⅱlei chu ceng ping jia zhong deng ,Ⅲlei chu ceng ping jia cha 。Ⅰlei chu ceng he Ⅱlei chu ceng shi you zhi chu ceng 。Ⅰlei chu ceng ji zhong fen bu zai yan jiu ou de xi na ce ,shu xie po wai dai de chang yuan you zhi chu ceng 。Ⅱlei chu ceng zhu yao fen bu zai dong bu he na bu de shan san jiao zhou chen ji yi ji xi bu bian zhuang he san jiao zhou de ju bu ou yu 。zui you chu ceng fen bu zai yan jiu ou xi na ce ,shi xia yi bu kan tan kai fa de chong dian ou yu 。
论文参考文献
论文详细介绍
论文作者分别是来自长江大学的苏帅亦，发表于刊物长江大学2019-09-04论文，是一篇关于莱州湾凹陷论文,沙河街组论文,成岩作用论文,储层特征论文,储层评价论文,长江大学2019-09-04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，资料来自长江大学2019-09-04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：莱州湾凹陷论文; 沙河街组论文; 成岩作用论文; 储层特征论文; 储层评价论文; 长江大学2019-09-04论文;