沉积与特提斯地质
沉積與特提斯地質
침적여특제사지질
Sedimentary Geology and Tethyan Geology
2015年
3期
63-67
,共5页
陆东凹陷%水下扇%粒度特征%水流强度
陸東凹陷%水下扇%粒度特徵%水流彊度
륙동요함%수하선%립도특정%수류강도
Ludong depression%submarine fan%grain-size analysis%flow strength
前河油田九佛堂组为一套水下扇沉积。通过对不同层位取心井粒度资料分析及对比，分析其差异的原因，确定各层位搬运方式及沉积作用形式，并运用霍姆斯水流强度图分析从湖盆边缘向湖盆内的水流强度变化。根据岩性组合及测井曲线特征，识别出扇根、扇中前缘及扇端3种微相。并认为沿水流及砂体发育方向为部署有利区带。
前河油田九彿堂組為一套水下扇沉積。通過對不同層位取心井粒度資料分析及對比，分析其差異的原因，確定各層位搬運方式及沉積作用形式，併運用霍姆斯水流彊度圖分析從湖盆邊緣嚮湖盆內的水流彊度變化。根據巖性組閤及測井麯線特徵，識彆齣扇根、扇中前緣及扇耑3種微相。併認為沿水流及砂體髮育方嚮為部署有利區帶。
전하유전구불당조위일투수하선침적。통과대불동층위취심정립도자료분석급대비，분석기차이적원인，학정각층위반운방식급침적작용형식，병운용곽모사수류강도도분석종호분변연향호분내적수류강도변화。근거암성조합급측정곡선특정，식별출선근、선중전연급선단3충미상。병인위연수류급사체발육방향위부서유리구대。
The Jiufotang Formation in the Qianhe Oil Field, Ludong depression, Liaoning is built up of a succession of submarine fan deposits generated by the gravity flows and tractional currents during the deposition of the Jiufotang Formation and Shahai Formation. Three sedimentary microfacies have been distinguished, according to lithologic associations and well logs, including the proximal fan, mid-fan front and terminal fan, of which the mid-fan front sandstones turned out to be excellent reservoir rocks because of the discovery of the industrial oil run indicated by the L1 well in the study area.
