| 焉耆盆地宝浪油田宝北区块辫状分流河道砂体储层宏观特征 |
| |
| 引用本文： | 王家豪,姚光庆,袁彩萍,刘斌,黄郑.焉耆盆地宝浪油田宝北区块辫状分流河道砂体储层宏观特征[J].现代地质,2001,15(4):431-437. |
| |
| 作者姓名： | 王家豪 姚光庆 袁彩萍 刘斌 黄郑 |
| |
| 作者单位： | 1. 中国地质大学资源学院,
2. 河南石油勘探局开发研究院, |
| |
| 摘 要： | 焉耆盆地宝浪油田宝北区块储层为下三角洲平原辫状分流河道砂体。在观察岩心的基础上 ,应用测井曲线将厚砂体精细地划分为单个分流河道砂体。在分流河道的砂体内 ,心滩沉积的储集性能最好 ,以其发育由弱到强的程度将分流河道砂体划分为 3种类型 ,分别呈不对称的透镜状、宽薄碟状、宽厚槽状的横剖面形态。并进一步将小层砂体划分为宏观非均质性不同的3类储层 ,分别表现为孤立分流河道砂体、侧向叠置分流河道砂体、垂向叠置分流河道砂体 ,呈长条状、宽带状、面状等不同平面形态特征 ,具局部连通、弱连通、强连通的连通性。单个河道砂体和小层砂体的发育受控于湖平面的变化、基底沉降和分流河道水流能量的强弱。其中 ,强水流和基底稳定快速沉降有利于宽厚砂体的形成 ,而湖平面上升导致连续夹层发育和小层砂体的连通性降低 ,并依此建立了单个河道砂体和砂体组合的发育模式。
|
| 关 键 词： | 焉耆盆地 辫状分流河道 储层 宏观非均质性 |
| 文章编号： | 1000-8527(2001)04-0431-07 |
| 修稿时间： | 2001年5月14日 |
MACROSCOPIC CHARACTERISTIC OF BRAIDED DISTRIBUTARY CHANNEL SANDBODY RESERVOIRS AT BAOBEI BLOCK,THE BAOLANG OIL FIELD IN THE YANQI BASIN |
| |
| WANG Jia hao ,YAO Guang qing ,YUAN Cai ping ,LIU Bin ,HUANG Zheng.MACROSCOPIC CHARACTERISTIC OF BRAIDED DISTRIBUTARY CHANNEL SANDBODY RESERVOIRS AT BAOBEI BLOCK,THE BAOLANG OIL FIELD IN THE YANQI BASIN[J].Geoscience——Journal of Graduate School,China University of Geosciences,2001,15(4):431-437. |
| |
| Authors: | WANG Jia hao YAO Guang qing YUAN Cai ping LIU Bin HUANG Zheng |
| |
| Institution: | WANG Jia hao 1,YAO Guang qing 1,YUAN Cai ping 1,LIU Bin 2,HUANG Zheng 2 |
| |
| Abstract: | The reservoirs at Baobei block, the Baolang oil field in the Yanqi Basin are composed of braided distributary channel sandbodies in lower delta plain.Based on observation of drilling cores,the authors divided elaborately the thick braided distributary channel sandbodies into several single channel sandbodies by virtue of well logs.The core beach sediments are the most favorable reservoirs in a distributary channel sandbody.According to development of core beach sediments,three sorts of distributary channel sandbodies were recognized,which occur in asymmetrical lens shape,wide and thin dish shape,and wide and thick trough shape in cross section respectively.Additionally,the authors recognized three kinds of sandbody unit reservoirs with difference macroscopic anisotropy.These three kinds of reservoirs consist of isolated distributary channel sandbody,lateral stacked distributary channel sandbody,and vertical stacked distributary channel sandbody,which occur as long stripes,wide zones,planes in plane figure,and show local connection,low connection and high connection respectively.The development of single channel sandbody and sandbody units was controlled by lake level's fluctuation,basement's subsidence and energy of flows in channel.High energy flow and rapid steady subsidence of basement resulted in wide and thick single sandbody and sandbody unit,and lake level's rising caused the formation of successive partings and low connecting sandbody unit.Furthermore,the authors give the formation model for single sandbody and sandbody's combination. |
| |
| Keywords: | the Yanqi Basin braided distributary channel reservoir macroscopic anisotropy |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
