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首页> 外文期刊>Journal of Petroleum Science & Engineering >Investigation of localized displacement phenomenon for Low-Tension-Gas (LTG) injection in tight formations
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Investigation of localized displacement phenomenon for Low-Tension-Gas (LTG) injection in tight formations

机译:致密地层中低张力天然气(LTG)注入的局部位移现象研究

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摘要

This paper investigates the mechanisms and factors which impact foam flooding in tight formations. It focuses on oil/water miscible methods - titled 'Low-Tension-Gas (LTG)' in this manuscript - for mobilizing and displacing the remaining crude oil after waterflood. This manuscript builds on previous work establishing Low-Tension-Gas (LTG) as an effective method for (oil to gas) sub-miscible tertiary recovery in tight sandstone and carbonate reservoirs (Szlendak et al., 2013). Such work determined that a high tertiary recovery of 75-90% could be demonstrated with many of the same process attributes of Alkali Surfactant-Polymer (ASP) flooding but without many of the limitations associated with polymer application in tight formations.
机译:本文研究了影响致密地层泡沫驱的机理和因素。它着重于油/水混溶性方法(本手稿中称为“低张力气体(LTG)”),用于在注水后动员并置换剩余的原油。该手稿建立在先前的工作基础上,即建立低张力气体(LTG)作为致密砂岩和碳酸盐岩储层中(油对气)次混溶三次采收的有效方法(Szlendak等,2013)。这项工作确定,可以使用碱表面活性剂-聚合物(ASP)驱油的许多相同工艺属性来实现75-90%的高三次采收率,但没有与致密地层中聚合物应用相关的许多限制。

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