分流平原相复合砂体单一河道识别及效果分析  

Recognition and its effect analysis of single river channel in composite sand body with distributary plain facies

作　　者：何宇航[1] 于开春[2] 

机构地区：[1]浙江大学,浙江杭州3100272 [2]大庆油田有限责任公司第五采油厂,黑龙江大庆163513

出　　处：《大庆石油地质与开发》2005年第2期17-19,i002,共4页Petroleum Geology & Oilfield Development in Daqing

摘　　要：针对杏南地区三角洲分流平原相复合砂体的成因模式, 利用层序地层学原理在垂向上从识别沉积间断面入手确定出单期次的沉积单元, 在平面上根据废弃河道、砂体层位差异、测井曲线形态、韵律特征变化及砂体在横向上的厚度变化趋势等确定出单一河道边界, 从而识别出复合砂体内的单一河道, 提高了对复合砂体的认识程度, 在油田开发应用中取得了比较好的效果。In view of the genetic model of the composite sand body in delta distributary plain facies in Xingnan area, by way of sequence stratigraphic principles and beginning from recognizing depositional break surface, the sedimentary unit of each single period in vertical can be determined,while in horizon, according to abandoned channels, stratigraphic differential of sand bodies, shape of well logging curves, change of rhythmic characteristics, thickness changing trend of sand body in vertical etc., the single river channel boundary can be ensured, therefore the single river channel within the composite sand bodies can be made clear, understanding to the composite sand bodies can be further deepened, and relatively good development effects has been achieved in field application of this theory.

关 键 词：分流平原 复合砂体 沉积间断 单一河道 应用 

分 类 号：TE122[石油与天然气工程—油气勘探]