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低渗透砂岩油气藏裂缝综合预测
断块油气田
2007年 14卷 第04期
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Title
Synthetica l prediction for fracture system of low
permeability sandstone re servoir
作者
李 娟1 李 琦1 孙松领1 赵先进2 苏月琦2
Authors
Li Juan,L iQ i ,Sun Songling, et al
单位
1. 中国地质大学, 湖北武汉430074; 2. 中原油田分公司采油四厂, 河南濮阳457061
Organization
China University of Geosciences, Wuhan
430074, China
摘要
低渗透砂岩储层中裂缝既是储油空间, 又是油气运移的主要通道, 对储层裂缝的描述和预测是其开发地质研究的重要内容。单一研究方法不能满足精细预测的需要, 迫切需要将各种方法综合运用, 以达到指导勘探开发的目的。以东濮凹陷户部寨气田为例, 综合运用岩心描述、镜下观察、测井综合指数分析、地震属性分析、应力应变分析、裂缝开启性分析等方法, 对沙四段低渗透致密储层裂缝的分布规律及开启性做出预测。
Abstract
The fracture o f low perm eability sandstone reservo ir is
the sto rage space of petro leum and the m a in passage o f its
transportation. The description and prediction o f reservo ir
fracture is a very im po rtant resea rch for exploration and
developm ent. The recent s ing le me thod of fracture pred iction
alm ost has some lim itation to a certa in ex ten t because o f the
strong hete rogene ity and low perm eability of th is reservo ir. So
m ethods o f geo logy, w ell logg ing, seism ic and tecton ic stress
fie ld shou ld be used synthetica lly to access to e labo ra te
pred iction. Taking Hubuzhai gas fie ld o f Dongpu Depress ion
as an examp le, th is paper uses core description, m ic roscope
observation, synthetica l index o f w ell logg ing, se ism ic
attribute, stress - stra in and fracture unsealing analysis to
pred ict frac ture distribution and unsealing ex tent
Keywords:
low pe rmeability sandstone reservo ir,
fracture, prediction.;