[1]杨怀军 马先平 杨德华.稠油油藏污水活性碱/聚二元复合驱室内试验研究[J].石油钻采工艺,2008,30(6):071-74.
 YANG Huaijun,MA Xianping,YANG Dehua.Laboratory test of active alkali-polymer binary combination flooding with produced sewagein heavy oil reservoir[J].Oil Drilling & Production Technology,2008,30(6):071-74.
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稠油油藏污水活性碱/聚二元复合驱室内试验研究
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《石油钻采工艺》[ISSN:1000-7393/CN:13-1072/TE]

卷:
30卷
期数:
2008年6期
页码:
071-74
栏目:
油气开采
出版日期:
2008-12-20

文章信息/Info

Title:
Laboratory test of active alkali-polymer binary combination flooding with produced sewage
in heavy oil reservoir
文章编号:
1000 – 7393 ( 2008 ) 06 – 0071 – 04
作者:
杨怀军 马先平 杨德华
( 大港油田公司采油工艺研究院,天津 300280)
Author(s):
YANG Huaijun MA Xianping YANG Dehua
(Oil Production Technology Institute of Dagang Oilfield Company, Tianjin 300280, China)
关键词:
稠油油藏污水活性碱/ 聚二元复合驱界面张力提高采收率
Keywords:
heavy oil reservoir produced sewage active alkali-polymer binary combination flooding interfacial tension enhanceoil recovery
分类号:
TE357.46
文献标志码:
A
摘要:
羊三木油田碱/ 聚驱先导试验存在现场污水配制碱/ 聚二元复合驱体系时出现结垢堵塞地面管线、聚合物严重降解
等问题,为此开展了污水配制新型碱/ 聚合物二元复合驱体系研究。采用抗钙镁结垢能力强、降低界面张力幅度大的活性碱与
污水聚合物匹配,分析在污水配制条件下,不同碱型与聚合物匹配的驱油能力,以及在原油黏度高达530 mPa·s 时能否继续开
展二元复合驱的问题。研究结果表明 :原油黏度为530 mPa·s,污水配制活性碱/ 聚合物二元复合体系溶液黏度为45 mPa·s 时,
油水界面张力达到10-3 数量级,活性碱/ 聚合物二元复合驱比纯水驱提高采收率17% 以上;在原油黏度确定及油水界面张力
已降至超低值时,超过碱/ 聚二元体系溶液浓度技术临界点后,即使继续增加溶液黏度,采收率也不会大幅度增加。该研究为
普通稠油油藏注水开发后期化学驱提高采收率提供了新型有效的技术手段。
Abstract:
In the alkali-polymer pilot test of Yangsanmu oilfield, scaling often led to surface pipeline plug and polymer
degradation while preparing combination flooding system with produced sewage. A new active alkali with strong capacity of calcium
and magnesium scale resistance and decreasing interfacial tension was adopted to prepare with produced water polymer. This paper
discusses the oil-displacement capacity when different alkali matches with polymer, and whether binary system flooding can be carried
out when viscosity of crude oil reaches 530 mPa·s. Research indicates that oil-water interfacial tension reaches magnitude of 10 - 3,
and recovery factor with binary system flooding increases about 17% compared with pure water flooding, at oil viscosity of 530 mPa·s
and alkali-polymer binary solution viscosity of 45 mPa·s prepared with produced water. Given crude oil viscosity and ultra-low oilwater
interfacial tension, once the system concentration exceed technologic critical point, continuous increase of solution viscosity
will not obtain the large increase of recovery factor. The research provides a powerful technical means for enhanced oil recovery with
chemical flooding in the late stage of water injection development in ordinary heavy oil reservoir.

参考文献/References:

[1]  PHILIP B L 著. NaHCO3 提高采收率筛选准则[J].
李为民译. 油气开发工程译丛,1990,(12):14-23.
PHILIP B L. Screening criteria for NaHCO3 EOR[J].
Translated by LI Weimin. Translations of Oil and Gas Development
Engineering, 1990, (12): 14-23.
[2]  陈智宇,孙卫,杨怀军,等. 羊三木油田碱—聚合物驱油
机理[J]. 西北大学学报:自然科学版,1999,29(3):
237-240.
CHEN Zhiyu, SUN Wei, YANG Huaijun, et al. The mechanism
of enhancing oil recovery by caustic polymer flooding
in Yangsanmu area Dagang Oilfield[J]. Science Journal
of Northwest University, 1999, 29(3): 237-240.
[3]  陈智宇. 羊三木油田馆Ⅱ上油组碱—聚合物驱室内实
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CHEN Zhiyu. Laboratory experiment and analysis of alkali/
polymer flooding in the upper oil reservoir of the 2nd member
of Guantao formation in Yangsanmu oilfield[J]. Oil
& Gas Recovery Technology, 1994, 1(2): 33-38.

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更新日期/Last Update: 2009-01-21