|本期目录/Table of Contents|

[1]王冠民,李明鹏.胜利油田永8断块沙二段辫状河三角洲前缘储层构型特征[J].地球科学与环境学报,2015,37(06):10-21.
　WANG Guan-min,LI Ming-peng.Reservoir Architecture Characteristics of Braided River Delta Front in the Second Member of Shahejie Formation, Yong8 Fault Block, Shengli Oilfield[J].Journal of Earth Sciences and Environment,2015,37(06):10-21.
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《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

卷:
第37卷
期数:
2015年第06期
页码:
10-21
栏目:
基础地质与矿产地质
出版日期:
2015-11-15

文章信息/Info

Title:
Reservoir Architecture Characteristics of Braided River Delta Front in the Second Member of Shahejie Formation, Yong8 Fault Block, Shengli Oilfield
文章编号:
1672-6561(2015)06-0010-12
作者:
王冠民; 李明鹏
1. 中国石油大学(华东) 地球科学与技术学院，山东 青岛 266580；2. 中国石油勘探开发研究院廊坊分院，河北 廊坊 065007
Author(s):
WANG Guan-min;  LI Ming-peng
1. School of Geosciences, China University of Petroleum, Qingdao 266580, Shandong, China; 2. Langfang Branch of PetroChina Research Institute of Petroleum Exploration and Development, Langfang 065007, Hebei, China
关键词:
辫状河三角洲; 储层; 构型; 进积体; 分流河道; 河口坝; 胜利油田; 东营凹陷
Keywords:
braided river delta;  reservoir;  architecture;  prograding body;  distributary channel;  mouth bar;  Shengli oilfield;  Dongying sag
分类号:
P618.13；TE122.2+1
DOI:
-
文献标志码:
A
摘要:
目前，中国辫状河三角洲油气储层的开发很多已经进入高含水期，但对辫状河三角洲储层构型的研究并不多，影响了该类储层剩余油的挖潜。以胜利油田永8断块沙二段辫状河三角洲厚层砂体为研究对象，充分利用岩芯、测井、地震和开发资料，通过隔夹层划分，将主力层段划分为5级界面限制的三角洲前缘复合沉积体和4级界面限制的单一三角洲前缘沉积体。单一三角洲前缘沉积体包括水下分流河道、河道周缘溢岸砂体、河口坝主体、河口坝周缘、分流间湾等构型单元。通过综合利用曲线形态差异、砂体侧向厚度变化、砂体间泥质沉积、隔夹层数目差异等进行砂体边界与叠置关系的划分，确定了辫状河三角洲前缘单一沉积体的平面和剖面构型样式，揭示了单一沉积体各构型单元逐层进积的基本过程，明确了该区辫状河三角洲具有河窄坝宽、河薄坝厚、河顺坝横的特点。研究区沙二段辫状河三角洲河口坝宽度为分流河道宽度的2.23~8.95倍，河口坝厚度为分流河道厚度的1.25~2.50倍。
Abstract:
Lots of petroleum exploration for braided river delta reservoirs has entered high water cut stage in China, but the study on reservoir architecture of braided river delta is few, so that it affects the potential of digging residual oil for this kind of reservoir. Taking the thick sandbody in the second member of Shahejie Formation of Yong8 fault block, Shengli oilfield as a research object, according to the cores, well logging, seismic and development data, the main interval was divided into compound sedimentary body of delta front with the limitation of the fifth surface and single sedimentary body of delta front with the limitation of the fourth surface by interbed. The single sedimentary body of delta front includes architecture elements such as underwater distributary channel, overbank sandbody of channel periphery, main mouth bar, periphery of mouth bar and interdistributary bay, etc. The boundary of sandbody and superimposed relationship were divided according to the difference of well logging curve, lateral change of sandbody thickness, argillaceous sediment between sandbodies, and the number difference of interbeds; the architecture style of single sedimentary body of braided river delta front both in plane and profile was confirmed; the basic process of layer-by-layer progradation for each architecture unit of single sedimentary body was explained; the characteristics of braided river delta in this block were discussed, including the channel being narrow, thin and straight, and the mouth bar being wide, thick and lateral. The width of mouth bar for braided river delta in the second member of Shahejie Formation of the block is 2.23-8.95 times of that of distributary channel, and the thickness is 1.25-2.50 times of that of the distributary channel.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2015-01-10
基金项目:国家科技重大专项项目(2011ZX05023-001-013)
作者简介:王冠民(1969-),男,吉林桦甸人,教授,理学博士,E-mail:wguanmin@sina.com。
更新日期/Last Update: 2015-11-27