Experimental investigation on asphaltene deposition in porous media during miscible gas injection

被引：0
|
作者：
Mousavi Dehgani, Sayed Ali [2 ]
Vafaie Sefti, Mohsen [1 ]
Mirzayi, Behruz [1 ]
Fasih, Mahdi [2 ]
机构：
[1] Tarbiat Modares Univ, Fac Engn, Dept Chem Engn, Tehran, Iran
[2] Res Inst Petr Ind, Tehran, Iran
来源：
IRANIAN JOURNAL OF CHEMISTRY & CHEMICAL ENGINEERING-INTERNATIONAL ENGLISH EDITION | 2007年 / 26卷 / 04期
关键词：
asphaltene deposition; porous media; wettability alteration; permeability reduction; miscible gas injection;
D O I：
暂无
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
In this work the likelihood of asphaltene deposition problems during dynamic displacement of oil by natural gas in unconsolidated porous media is experimentally inspected. The two different rock materials, limestone and sandstone, are used as a representative of porous media. Dynamic flow experiments indicate that the increase of natural gas injection increases asphaltene deposition in the unconsolidated matrix. The results of the study show that increase in asphaltene deposition leads to pore plugging, porosity reduction and absolute permeability damage. Irreducible water measurements showed that natural gas-induced asphaltenes change the rock wettability to oil-wet.
引用
收藏
页码：39 / 48
页数：10
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