辽河油田二界沟洼陷沙三段沉积体系特征研究  

Research on Reservoir Sedimentary Characteristics in Es3 to the Er Jie Gou Depression in Liaohe Basin

作　　者：邢宝荣[1] 施尚明[1] 

机构地区：[1]大庆石油学院地科院,黑龙江大庆163456

出　　处：《内蒙古石油化工》2008年第23期116-118,共3页Inner Mongolia Petrochemical Industry

摘　　要：二界沟洼陷位于辽河东部凹陷的南部,有良好的油气勘探前景。其中沙三段沉积时期,以半深湖沉积环境为主,具有较好油气源条件。该区断裂比较复杂,为油气运移提供了有利的通道;火成岩比较发育;沉积条件也较为复杂,发育冲积扇和辫状河三角洲和扇三角洲沉积体系,物源主要以北东向为主,河道砂体分布广泛,由于河道的不断变迁,使砂泥岩相互叠置、形成砂岩透镜体,是岩性油气藏形成的有利场所。本文结合大量的地球物理测井及录井资料,研究了区块内沙三段油层组的沉积体系特征的分布规律。Er JieGou is located in the South of the East Depression of Liaohe Basin,with very bright exploration prospect. During the period of Es3 of the Palaeogene,the main sedimenary condition is half-- deep lacustrine. It has better oil and gas conditions. The fractures of this area are very complicated,which supplied major migration pathway for the hydrocarbon. Voleanic rock is distributed abundantly. The sedimentary conditions are also complicated. Depositional system of alluvial fan ,braided channel delta and fan--deltaic have been recognized in this area. The direction of sources are mainly from north--east. Reservior of river distributed widely. Due to the change of river course, made the sand and mud be reduplicated and formed sand lens,which are better locations of lithologie reserviors. This article combined large well logging data and logging data and studied the laws of the deposition system charieteristies of oil --bearing formation to the Es3.

关 键 词：辽河盆地 东部凹陷 沉积相 沙三段 

分 类 号：P618.130.2[天文地球—矿床学] TE122.1[天文地球—地质学]