|本期目录/Table of Contents|

[1]卢欢,牛成民,李慧勇,等.变质岩潜山油气藏储层特征及评价[J].断块油气田,2020,27(01):28-33.[doi:10.6056/dkyqt202001006]
 LU Huan,NIU Chengmin,LI Huiyong,et al.Reservoir feature and evaluation of metamorphic buried-hill reservoir[J].Fault-Block Oil and Gas Field,2020,27(01):28-33.[doi:10.6056/dkyqt202001006]
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变质岩潜山油气藏储层特征及评价(PDF)
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《断块油气田》[ISSN:1005-8907/CN:41-1219/TE]

卷:
27
期数:
2020年01
页码:
28-33
栏目:
默认栏目
出版日期:
2020-01-25

文章信息/Info

Title:
Reservoir feature and evaluation of metamorphic buried-hill reservoir
作者:
卢欢牛成民李慧勇于海波张友刘军钊
中海石油(中国)有限公司天津分公司渤海石油研究院,天津 300459
Author(s):
LU Huan NIU Chengmin LI Huiyong YU Haibo ZHANG You LIU Junzhao
Bohai Oilfield Research Institute, Tianjin Branch of CNOOC Ltd., Tianjin 300459, China
关键词:
暗色矿物变质岩潜山储层特征孔隙度裂缝密度
Keywords:
dark mineral metamorphic buried-hill reservoir feature porosity fracture density
分类号:
-
DOI:
10.6056/dkyqt202001006
文献标志码:
A
摘要:
采用岩石薄片、X射线衍射、扫描电镜、成像测井等多种分析手段,对渤海海域太古界变质岩储层的岩性特征和储集空间类型进行了综合研究,探讨了暗色矿物体积分数对孔隙度和裂缝密度的影响。通过大量数据分析,建立了孔隙度、裂缝密度与不同岩性暗色矿物体积分数的定量关系。研究结果表明:暗色矿物在碎裂岩中体积分数较低,而在片麻岩中体积分数较高,角闪石体积分数与孔隙度呈负相关关系,黑云母体积分数与孔隙度呈正相关关系;不同岩性中暗色矿物体积分数对孔隙度的影响界限值为5%和15%,对裂缝密度的影响界限值为10%;当暗色矿物体积分数小于10%时,构造条件对裂缝发育的影响更为关键。文中结合岩心分析、风化指数、录井、测井等资料,建立了太古界变质岩潜山油气藏储层分带评价方案,自上而下划分为强风化破碎带、次裂缝带、主裂缝带、致密带和内幕裂缝带。
Abstract:
Based on the mineralogical analysis from rock slice, XRD, SEM, and FMI well log, the lithology types and reservoir space types of the archaeozoic basement gas reservoir in Bohai Sea area is systematically analyzed, and the impact of dark mineral on reservoir quality is also discussed. According to statistics of dark mineral type and volume, the quantitive relation of dark mineral type, volume fraction and fracture density is established. Result shows that dark mineral volume fraction is low in cataclastic and high in gneiss. Amphibole and porosity are negatively correlated, while biotite and porosity are positively correlated. The influence limit of dark minerals volume fraction of different lithology on porosity is 5% and 15% respectively. The influence limit on fracture is 10%. When dark mineral volume fraction is less than 10%, it presents no obvious correlation, but tectonic condition presents greater influence on fractures. Finally, based on core analysis, weathering index, element log data, and well log data, the evaluation of the archaeozoic metamorphic buried-hill reservoir is built, and five zones, including weathering zone, secondary fracture zone, primary fracture zone, tight zone and inside hill fracture zone, are classified.

参考文献/References:

相似文献/References:

[1]毕君伟,张巨星,宁松华,等.辽河坳陷变质岩油藏潜山区带类型划分及勘探思路[J].断块油气田,2014,21(04):429.[doi:10.6056/dkyqt201404006]
 Bi Junwei,Zhang Juxing,Ning Songhua,et al.Classification and exploration method of buried hill zones for metamorphic rock reservoir in Liaohe Depression[J].Fault-Block Oil and Gas Field,2014,21(01):429.[doi:10.6056/dkyqt201404006]
[2]黄凤祥,夏振宇,马秀玲,等.基于测井和地震技术变质岩潜山岩性识别与预测[J].断块油气田,2016,23(06):721.[doi:10.6056/dkyqt201606008]
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备注/Memo

备注/Memo:
更新日期/Last Update: 2020-02-06