|本期目录/Table of Contents|

[1]徐宁宁,王永诗,张守鹏,等.利津洼陷北部砂砾岩储层异常高孔渗带形成机制[J].断块油气田,2020,27(01):17-21,89.[doi:10.6056/dkyqt202001004]
 XU Ningning,WANG Yongshi,ZHANG Shoupeng,et al.Formation mechanism of anomalously high porosity and high permeability zone of sandy conglomerate reservoirs in northern Lijin Sag, Jiyang Depression[J].Fault-Block Oil and Gas Field,2020,27(01):17-21,89.[doi:10.6056/dkyqt202001004]
点击复制

利津洼陷北部砂砾岩储层异常高孔渗带形成机制(PDF)
分享到:

《断块油气田》[ISSN:1005-8907/CN:41-1219/TE]

卷:
27
期数:
2020年01
页码:
17-21,89
栏目:
默认栏目
出版日期:
2020-01-25

文章信息/Info

Title:
Formation mechanism of anomalously high porosity and high permeability zone of sandy conglomerate reservoirs in northern Lijin Sag, Jiyang Depression
作者:
徐宁宁123王永诗2张守鹏2邱隆伟3蒋伟2王欣4
1.中国石化集团胜利石油管理局博士后科研工作站,山东 东营 257000;2.中国石化胜利油田分公司,山东 东营 257000;3.中国石油大学(华东)地球科学与技术学院,山东 青岛 266580;4.中海油研究总院有限公司,北京 100027
Author(s):
XU Ningning123 WANG Yongshi2 ZHANG Shoupeng2 QIU Longwei3 JIANG Wei2 WANG Xin4
1.Postdoctoral Scientific Research Station, Shengli Oilfield Company Ltd., SINOPEC, Dongying 257000, China; 2.Shengli Oilfield Company Ltd., SINOPEC, Dongying 257000, China; 3.School of Geosciences, China University of Petroleum, Qingdao 266580, China; 4.CNOOC Research Institute, Beijing 100027, China
关键词:
异常高孔带优质储层砂砾岩济阳坳陷
Keywords:
anomalously high porosity zone high quality reservoir conglomerate Jiyang Depression
分类号:
-
DOI:
10.6056/dkyqt202001004
文献标志码:
A
摘要:
济阳坳陷利津洼陷北部利563块沙四上段发育厚层砂砾岩储层。基于岩心、测录井数据和储层微观观察等,明确了储层异常高孔渗带的存在及其形成机制。研究表明:2 500~2 900 m深度范围内异常高孔渗带特征显著;异常高孔渗带成因机制有石油早期侵入、异常高压作用、溶蚀孔隙和压裂缝的发育等。储层粒间及压裂缝中沥青质的残余说明石油早期侵入;泥岩声波时差曲线的异常高值说明异常高压的存在。岩心和薄片观察揭示研究区砾石中压裂缝广泛存在,并显著提升了储层渗透率。储层溶蚀面孔率整体为2%左右,压裂缝发育基础上的溶蚀扩缝作用可有效提高储层孔隙度。
Abstract:
Thick layers of sandy conglomerate reservoirs are distributed in the upper part of the Fourth Member of Shahejie Formation in Li-563 area, the northern Lijin Sag of Jiyang Depression. Based on the data of cores, logging, rock microscopic feature and physical property, the paper reveals the existence of anomalous porosity-permeability zone and its formation mechanism. The study finds that it is remarkable for the feature of anomalous porosity-permeability zone among the interal of 2,500 ̄2,900 m. The formation mechanism of the anomalous porosity-permeability zone includes the petroleum emplacement in early time, anomalously higher pressure, dissolution pores and mechanical compaction fissures. The remaining bitumen among intergranular spaces and fissures indicates early petroleum emplacement. Anomalously higher values of interval transit time logging indicate the strata′s anomalously higher pressure. The observation of cores and thin sections reveals that the extensive existence of mechanical compaction fissures improves reservoirs′ permeability remarkably. Surface porosity of dissolution pores is around 2%, and fissures′ enlargement promoted by dissolution improves the reservoir porosity effectively.

参考文献/References:

相似文献/References:

[1]乔海波,赵晓东,刘晓,等.南堡4号构造中深层异常高孔带类型及成因[J].断块油气田,2016,23(06):726.[doi:10.6056/dkyqt201606009]
 QIAO Haibo,ZHAO Xiaodong,LIU Xiao,et al.Types and causes of anomalously high porosity zone in middle and deep reservoir of 4th Structure, Nanpu Depression[J].Fault-Block Oil and Gas Field,2016,23(01):726.[doi:10.6056/dkyqt201606009]
[2]张汶.南堡凹陷湖相碳酸盐岩优质储层识别及分布预测[J].断块油气田,2018,25(05):579.[doi:10.6056/dkyqt201805007]
 ZHANG Wen.Identification and distribution prediction of high-quality reservoir of lacustrine carbonate rocks in Nanpu Sag[J].Fault-Block Oil and Gas Field,2018,25(01):579.[doi:10.6056/dkyqt201805007]
[3]李俞锋,蒲仁海,孙龙.北礁凹陷中新统强振幅水道砂体含油气性探讨[J].断块油气田,2018,25(06):695.[doi:10.6056/dkyqt201806002]
 LI Yufeng,PU Renhai,SUN Long.Discussion on oil-gas bearing property of Miocene turbidite channel sandstones with high amplitude in Beijiao Sag, Qiongdongnan Basin[J].Fault-Block Oil and Gas Field,2018,25(01):695.[doi:10.6056/dkyqt201806002]

备注/Memo

备注/Memo:
更新日期/Last Update: 2020-02-06