碳酸盐岩储层非均质性研究现状及发展趋势

Abstract

储层非均质性是指储层由于在形成过程中受沉积、成岩作用和构造作用的影响，在空间分布及内部各种属性上都存在的不均匀的变化。其对油气的开发利用以及中老油田剩余油的再开发具有重要作用，所以储层非均质性一直是储层研究的重点、难点。随着我国大部分陆相碎屑岩油气田已进入中晚期，所以海相碳酸盐岩型油气藏在我国的油气田勘探开发中日益重要。随着塔里木、四川盆地的海相碳酸盐岩型油气田的勘探取得重大突破后，碳酸盐岩储层非均质性的研究与评价愈显重要。通过查阅大量资料以及借鉴碎屑岩储层非均质性研究手段，归纳总结碳酸盐储层非均质性的研究现状、表征、研究方法等内容，随着多学科相结合以及储层地质建模技术的应用，碳酸盐岩储层非均质性的研究必定会达到一个新的阶段。 Reservoir heterogeneity refers to the spatial distribution and various internal attributes of reser-voir are uneven, because of the effect of depositional environment, diagenesis and tectonic in the process of reservoir formation. Reservoir heterogeneity plays an important role on exploitation of oil and gas as well as redevelopment of the residual oil in old fields, so it has been the difficulty and emphasis of reservoir research. With most of continental clastic oil-gas fields entering into the middle or last period of development, the exploration and development of marine carbonate oil- gas fields become increasingly important. As the exploration of marine carbonate oil-gas fields in Tarim, Sichuan Basin made a major breakthrough; the research and evaluation of carbonate reservoir heterogeneity become more and more important. Summarizing the research status, cha-racterization, research methods and so on of carbonate reservoir heterogeneity by referring to large amount of data and drawing lessons from clastic reservoir heterogeneity research tools, with the combination of multiple disciplines and the application of technology of reservoir geologic modeling, carbonate reservoir heterogeneity research will reach a new stage.