大庆石油地质与开发

2014, v.33;No.162(02) 22-26

[打印本页] [关闭]
本期目录(Current Issue) | 过刊浏览(Archive) | 高级检索(Advanced Search)

徐家围子断陷沙河子组砂砾岩储层特征及主控因素
CHARACTERISTICS AND MAIN CONTROLLING FACTORS FOR THE GLUTENITE RESERVOIR OF SHAHEZI FORMATION IN XUJIAWEIZI FAULT DEPRESSION

张常久
ZHANG Changjiu

摘要(Abstract):

综合运用薄片、扫描电镜、岩心、录井及测井等资料,对徐家围子断陷沙河子组砂砾岩储层的岩石学特征、物性特征、沉积环境、成岩作用等进行了研究。结果表明:沙河子组砂砾岩以长石质岩屑砂岩、岩屑质长石砂岩和岩屑砂岩为主,发育多种孔隙类型;储层总体评价较差,为低孔、低渗型储层;沉积相以扇三角洲相和辫状河三角洲相为主,其中扇三角前缘相带的水下分流河道、席状砂的储层物性最好;压实作用使储层物性变差,胶结作用具有正反两方面的的改造作用,溶蚀作用则起到建设性的作用,对储层的形成有利。
By means of the comprehensively utilizing the data of cast thin section,scanning electron micrograph,core,mud logging,well logging and so on,the petrological characteristics,physical properties,depositional environments,diageneses and so forth are figured out for the glutenite reservoir of Shahezi Formation in Xujiaweizi Fault Depression.The results show that the glutenite mainly consists of feldspathic litharenite,lithic feldspathic sandstone and lithic sandstone,and moreover a variety of pore types are well developed;the overall evaluation for the reservoir is rather poor-low porosity,low permeability reservoir;the fan delta and braided river delta sedimentary facieses are mainly included,among them,the physical properties of the reservoir are the best for the underwater distributary channel and sheet sand in the front facies belt of the former;the compaction results in the poorer reservoir properties,the cementation possesses double actions:destruction and construction,the dissolution plays the constructive role-this is beneficial to the reservoir.

关键词(KeyWords): 徐家围子断陷;沙河子组;砂砾岩储层;岩石学特征;物性特征;主控因素
Xujiaweizi Fault Depression;Shahezi Formation;glutenite reservoir;petrological characteristic;physical feature;main controlling factor

Abstract:

Keywords:

基金项目(Foundation): 中国石油重大科技专项“大庆探区非常规油气勘探开发关键技术研究与现场试验”(2012E-2603)

作者(Author): 张常久
ZHANG Changjiu

参考文献(References):

扩展功能
本文信息
服务与反馈
本文关键词相关文章
本文作者相关文章
中国知网
分享