[1]齐玉民.渤海海域渤中19-6基岩潜山储层孔隙微观特征及其发育控制因素[J].复杂油气藏,2022,15(02):12-16.[doi:10.16181/j.cnki.fzyqc.2022.02.003]
 QI Yumin.Microscopic characteristics of pores and controlling factors of bedrock buried hill reservoirs in Bozhong 19-6 Gasfield of Bohai Sea[J].Complex Hydrocarbon Reservoirs,2022,15(02):12-16.[doi:10.16181/j.cnki.fzyqc.2022.02.003]
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渤海海域渤中19-6基岩潜山储层孔隙微观特征及其发育控制因素()
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《复杂油气藏》[ISSN:1674-4667/CN:31-2019/TQ]

卷:
15卷
期数:
2022年02期
页码:
12-16
栏目:
油气勘探
出版日期:
2022-06-25

文章信息/Info

Title:
Microscopic characteristics of pores and controlling factors of bedrock buried hill reservoirs in Bozhong 19-6 Gasfield of Bohai Sea
作者:
齐玉民
中海油能源发展股份有限公司,天津 300452
Author(s):
QI Yumin
CNOOC Energy Technology & Services Limited,Tianjin 300452,China
关键词:
储层数字岩心基岩潜山渤中19-6气田渤海海域
Keywords:
reservoirdigital corebedrock buried hillBozhong 19-6 GasfieldBohai Sea area
分类号:
TE122.2
DOI:
10.16181/j.cnki.fzyqc.2022.02.003
文献标志码:
A
摘要:
利用微米CT扫描、背散射扫描电镜二维成像(Maps)、全岩矿物定量分析(Qemscan)和三维孔隙数字岩心建模技术,结合岩心、薄片、物性等常规实验手段对渤中19-6潜山变质岩储层的孔隙微观特征及其发育控制因素进行了研究。结果表明,潜山变质岩储层储集空间主要为溶蚀孔、微裂缝和构造裂缝,以微米级孔隙为主,孔隙半径区间主要为0.3~5 ?m,裂缝开度存在0.3~10 ?m、30~100 ?m、300~1000 ?m多个峰值区间。分析认为,潜山变质岩储层孔隙结构受岩性、溶蚀和多期次裂缝改造作用控制,脆性矿物含量高、燕山期和喜山期裂缝发育,溶蚀作用强,有利于孔隙发育。
Abstract:
With the assistance of conventional experimental methods such as cores,thin slices,and physical properties,the experimental techniques of micron CT scan imaging,backscattered scanning electron microscope two-dimensional imaging (Maps),quantitative analysis of whole-rock minerals (Qemscan),and three-dimensional pore digital core modeling are applied to research on the pore microscopic characteristics and controlling factors of the metamorphic rock reservoir of the buried hill in Bozhong 19-6. The results show that the reservoir spaces of the buried hill metamorphic rock reservoir are mainly dissolution pores,micro-fractures,and structural fractures. The pore radius is mainly at the micron level,and the range are from 0.3 ?m to 5 ?m. The width distribution of fractures has multiple peaks: 0.3 to 10 ?m,30 to 100 ?m,and 300 to 1 000 ?m. The analysis shows that the pore structure of metamorphic rock reservoirs in buried hills is controlled by lithology,dissolution,and multi-stage fractures. The high content of brittle minerals,fractures developed in the Yanshan and Himalayan periods,and strong dissolution are all conducive to the development of pores.

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备注/Memo

备注/Memo:
收稿日期:2022-03-25;改回日期:2022-04-11。
作者简介:齐玉民(1981—),工程师,主要从事石油储层地质工作。E-mail:qiym@cnooc.com.cn。
更新日期/Last Update: 2022-06-25