范璎宁;李胜利;梁星如;杜新江;崔刚;徐丽强;

• 1:中国地质大学(北京)能源学院

• 2:中国石油华北油田分公司

摘要(Abstract)：

受控于不同的水流特征、物源供给和地形坡度,浅水三角洲河口坝发育程度和特征具有较大争议。以河北霸县凹陷文安斜坡西5井区沙河街组三段为例,采用井震心综合研究方法,以岩心相、测井相、地震相为标志,识别研究区浅水三角洲沉积微相类型;结合相对海平面升降变化,沉积微相、亚相的展布特征和演化规律,以及对古地貌和古水流分析其沉积控制因素和沉积模式,解释浅水河口坝型三角洲发育规律。结果表明:西5井区位于三角洲前缘末端,水动力较弱,砂泥比较低,河道相对稳定,属于缓坡河口坝型浅水三角洲,且地形坡度较缓、物源供给适中或不充分、水动力条件较弱、湖平面上升等因素控制浅水三角洲河口坝的发育程度。该结果对于厘清浅水三角洲河口坝形成的因素,指导该类型三角洲油气勘探开发具有重要的意义。

关键词(KeyWords)：湖泊浅水缓坡;河口坝型三角洲前缘;沙河街组三段;沉积特征与模式;文安斜坡;霸县凹陷

Abstract:

Keywords:

基金项目(Foundation):国家自然科学基金项目(41572080,41272132);; 中国石油股份有限公司重大科技专项(HBYT-YJY-2015-JS-89)

作者(Author):范璎宁;李胜利;梁星如;杜新江;崔刚;徐丽强;

Email:

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