杜家台油层难动用储量评价与部署研究

【作者】 张勇；

【导师】 刘永辉；

【作者基本信息】 西南石油大学 ， 石油与天然气工程， 2010， 硕士

【摘要】 目前,随着石油天然气能源的进一步开发和消耗,以及国内外对油气能源的需求日益增长,难动用储量的评价工作显得越来越重要。难动用储量评价作为油气田开发设计的基础,其结果直接关系到油气田开发规模、开发指标预测和整体效益,是开发设计决策的重要依据。辽河油田的杜家台工区雷39块储层含泥质较重,且为钙质胶结,物性较差,生产效果一直不理想。本文针对辽河高升油田的杜家台油层储采矛盾大的特点,对雷39井区进行精细解释和储层反演,分析开发矛盾,井位部署,并计算有利圈闭石油地质储量等,并取得了一系列成果和认识。(1)建立了准确的地层对比划分方案,建立了区域地层对比关系,搞清了雷39块的地层、油层对比特征。(2)对杜家台区储层沉积相带展布及砂体空间分布变化有了更深入的认识。得到沙四段沉积相平面上的分布规律,并分析出雷家断裂带附近储集相带有利,储层物性好,是成藏的有利相带。(3)应用Strata储层预测技术对沙四段含油砂体进行了地震约束反演和储层预测,分析碎屑物质沿构造走向向南偏西方向延伸,砂体呈北东向展布,多个物源形成的砂体在平面上互相连片,在纵向上交叉迭置。(4)搞清了杜家台区油藏分布规律和油藏控制因素。工区紧临陈家生油洼陷,为工区各类圈闭成藏提供了丰富的油气源条件。(5)通过地质综合分析研究,优选出1个有利勘探目标,对发现的目标进行了综合评价分析,提出了部署建议井位4口。更多还原

【Abstract】 Currently, with the further development of oil and natural gas energy consumption, as well as domestic and international oil and gas energy needs growing, the valuation of hard-to-recover reserves has become increasingly important.Hard-to-recover reserves of oil and gas field development evaluation as a basis for the reservoir design, the result is directly related to the scale of oil and gas field development, development indicators prediction, and the overall benefits are important basis for development and design decisions. Liaohe oil field Lei 39 Dujiatai work area with heavier shaly sandstone and the calcareous cement, poor physical properties, production results have been unsatisfactory. In this paper, Liaohe Oilfield Dujiatai features of heavy reserve-production problem, for Lei 39 well field detailed interpretation and inversion, analyzing the confliction of the development, well placement, and calculation of oil reserves and favorable traps, and made a series of achievements and recognition as follow:(1) We have established an accurate stratigraphic correlation of the division plan and the relationship between the regional stratigraphic correlations. We are clear on the formation of Lei 39 and oil formation contrast features.(2) We Dujiatai reservoir sedimentary facies distribution and changes in spatial distribution of sand bodies have a better understanding. We come to a conclusion of sedimentary facies in the distribution of plane, and analyze the fault zone near the Lei family with favorable reservoir facies and reservoir, so it is favorable reservoir facies.(3) Strata reservoir prediction techniques applied Sha-4 section oil sand body seismic inversion and reservoir prediction, analysis of clastic fragment and structure to the south west direction along the extension of sand takes the shape of the North East to the distribution, the formation of multiple sources of sand bodies in the plane contiguous with each other, in vertical cross.(4) We are figrure out Dujiatai reservoir on reservoir distribution and controlling factors. Work area next to Chenjiasheng depression, various types of traps for the work area provides a rich reservoir of oil and gas source conditions.(5) Through comprehensive analysis of geological research, optimized a favorable exploration target, and targets are found a comprehensive evaluation and analysis, put forward the deployment advice of 4 proposed wells.更多还原