鄂尔多斯盆地塔巴庙区块太原组沉积微相研究

在了解区域沉积背景的情况下,综合运用岩心观察、岩相分析、测井相分析等手段,确定鄂尔多斯盆地北部塔巴庙区块太原组为有障壁海岸沉积体系和无障壁海岸沉积体系的滨浅海相沉积与湖泊-三角洲相沉积.以此为基础,进行井间横向对比,编制不同层位的沉积微相平面展布图,揭示各沉积微相演化规律,从而指出勘探开发的有利相带,为油田的进一步勘探开发提供依据.

Study of the sedimentary microfacies of the Taiyuan Formation in the Tabamiao area, Ordos Basin, China

On the basis of realizing the sedimentary system and tectonics,the authors think the sedimentary facies of the Taiyuan Formation is barrier island,beach and delta facies in Tabamiao area in the north of Ordos Basin by observing cores,analyzing lithofacies and log facies.Based on the above,comparing the wells,mapping microfaceis of different formations,they illustrate the evolvement of different microfacies and point out the favorable microfacies and offer the important groundwork for the exploration and exploitation of petroleum.