西南石油大学学报（自然科学版）2016，Vol.38Issue(6)：25-34,10.DOI:10.11885/j.issn.16745086.2015.02.02.03
塔中16含砾砂岩段隔夹层对油水分布的影响
The Impact of the Interlayer of No. 16 Pebbled Sandstone Member in Tarim on the Distribution of Oil and Water
摘要
Abstract
As the distribution of barriers and baffles could seriously affect the result of water flooding development, the paper took No. 16 pebbled sandstone member of Donghe reservoir at Middle Tarim as study area. We divided barriers and baffles into different types according to genesis mechanism, analyzed the characteristics of well logging response of different types of barriers and baffles from data of typical wells and predicted the spatial distribution of barriers and baffles and discussed the relationship between barriers and baffles and the distribution of remaining oil. The research shows that muddy interlayer, calcareous interlayer and low-permeability shaly sandstone interlayer are the main types of interlayer in of the study area;calcareous interlayer is at the bottom of the 5th sublayer, muddy interlayer concentrates at the bottom of the 3rd sublayer and low-permeability shaly sandstone interlayer is found sparsely. The vertical permeability of fluid is affected by the interlayers, which results in two oil-water pressure systems. In the same pressure system high-permeability reservoir is water-washing zone and low-permeability reservoir is remaining-oil rich zone. The study on the causes, type and distribution of interlayers, made clear the characteristic of enrichment of remaining oil and distribution of oil and water and provided geological evidence for the development program adjustment of next stage.关键词
含砾砂岩段/隔夹层/岩芯特征/测井识别/剩余油Key words
pebbled sandstone member/interlayer/core features/logging identification/remaining oil分类
能源科技引用本文复制引用
尹楠鑫,李存贵,李中超,熊运斌,罗亚男..塔中16含砾砂岩段隔夹层对油水分布的影响[J].西南石油大学学报（自然科学版）,2016,38(6):25-34,10.基金项目
国家重大科技专项（2011ZX05001）。 （）
