【作者】 闫锋；

【导师】 沈晓华；

【作者基本信息】 浙江大学 ， 构造地质学， 2007， 硕士

【摘要】 本文充分运用地质、测井以及室内分析化验资料,将测井沉积学、石油地质学和计算机技术与传统的古生物学、沉积学等理论相结合,按照从宏观—微观、从单井—多井—区域目的层的研究思路,对储层的微观孔隙结构、岩性特征、沉积相特征、物性特征等进行了深入的研究,在此基础上运用岩石物理相参数及有效厚度乘积将储层分为三类,并对其进行了分类评价,为该区的滚动勘探和提高开发效果提供依据,最后得出以下结论:1.胡123为一套河流入湖后形成的湖泊三角洲沉积,其中胡123~1为三角洲前缘沉积,胡123~2为三角洲平原亚相沉积。储层主要为分流河道及水下分流河道砂体。2.岩心观察和岩石薄片鉴定表明,胡123油层组储层岩石以细粒长石岩为主。3.储层非均质性研究表明,本区胡123油层组非均质性较强。4.选用岩石物理相参数(FZI)及有效厚度乘积作为储层分类评价参数,将研究区胡123储层划分为Ⅰ类(好储层)、Ⅱ类(中等储层)和Ⅲ类(差储层)储层。分类结果为:研究区胡123~1主要以Ⅲ类储层为主;胡123~2Ⅰ类、Ⅱ类储层占较大面积;胡123~3以Ⅱ类、Ⅲ类储层为主,Ⅰ类储层所占面积较胡123~2有所减小;胡123~4广大面积被Ⅲ类储层覆盖。评价结果与岩心、试油资料的对比分析表明,该方法在储层分类评价中的应用是可行的,且显示出较高的综合性与科学性,为今后的勘探开发指明了方向,具有一定的经济效益与推广价值。更多还原

【Abstract】 The paper makes full use of geological,well-logging and indoor analysis and test data,and integrate well-logging sedimentology,petroleum geology and computer technology with theory of traditional paleontology and sedimentology,according to research thoughts that from macroscopic to microscopic,from single well-Multiple well to target stratum in the research region,have studied the property of microcosmic pore structure,lithologic, sedimentary facies,petrophysical property and so on in-depth.Based on the content describe above,we sort the reservoir into three and evaluate the three types of reservoir,which Supply foundation to progressive exploration and increasing the effective exploitation,ln the end,we achieve the following conclusion:1.Facies of hu123 Oil-bearing bed are lake delta,facies of Hu 123 is delta front and hu123 is delta plain.Sand bodies of hu123 Oil-bearing bed are mainly distributary channel deposits of lake delta front facies and delta plain facies.2.By analyzing the data of drilling cores and rock thin-section,we think that fine-grained feldspar sandstone is the main oil-bearing rock in Hu123 reservoir of research region.3.The results of reservoir heterogeneity study indicate that heterogeneity in Hu123 reservoir of research region is high.4.We evaluated reservoir by petrophysical facies parameter(FZI) and net-pay thickness,and divide reservoir in hu123 of research region into three,namelyⅠ(good reservoir)、Ⅱ(medium reservoir)、Ⅲ(poor reservoir),the results indicate thin hu123 reservoir type of research region mainly isⅢ,hu123 areⅠandⅡ,hu123 areⅡandⅢand hu123 isⅢ..We compare the evaluate results with core and production test data,the results indicate that this method is feasible in container rock evaluation,and is also very scientific and synthetical,it pointed out the direction for the oil exploration and exploitation,and have some economic benefit,so it can be generalized.更多还原