Enhanced oil recovery mechanism of low oxygen air injection in high water cut reservoir

Abstract Whether air injection can extract additional oil in high water cut reservoirs is a big question. In this paper, long-core displacement experiment has been carried out to investigate the potential of low oxygen air flooding in high water cut reservoirs. Results indicate that implementing low...

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Main Authors: Hu Jia, Shu-Pin Yin, Xian-Ping Ma
Format: Article
Language:English
Published: SpringerOpen 2017-10-01
Series:Journal of Petroleum Exploration and Production Technology
Subjects:
Online Access:http://link.springer.com/article/10.1007/s13202-017-0389-0
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author Hu Jia
Shu-Pin Yin
Xian-Ping Ma
author_facet Hu Jia
Shu-Pin Yin
Xian-Ping Ma
author_sort Hu Jia
collection DOAJ
description Abstract Whether air injection can extract additional oil in high water cut reservoirs is a big question. In this paper, long-core displacement experiment has been carried out to investigate the potential of low oxygen air flooding in high water cut reservoirs. Results indicate that implementing low oxygen air injection has potential to improve oil recovery in high water cut light oil reservoir. The reservoir with higher matrix permeability and or lower reservoir permeability contrast ratio is desirable to achieve higher oil recovery factor. In addition, the oil recovery factor for water/gas alternate injection (WAG) strategy is higher than that of continuous low oxygen air flooding. And the WAG strategy has the ability to delay gas breakthrough compared with the strategy of continuous low oxygen air injection under same experiment condition.
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spelling doaj.art-bbaa8fd60706435795a01d9a884edcf02022-12-22T02:02:22ZengSpringerOpenJournal of Petroleum Exploration and Production Technology2190-05582190-05662017-10-018391792310.1007/s13202-017-0389-0Enhanced oil recovery mechanism of low oxygen air injection in high water cut reservoirHu Jia0Shu-Pin Yin1Xian-Ping Ma2State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum UniversityState Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum UniversityOil Production Technology Institute of Dagang Oilfield, CNPCAbstract Whether air injection can extract additional oil in high water cut reservoirs is a big question. In this paper, long-core displacement experiment has been carried out to investigate the potential of low oxygen air flooding in high water cut reservoirs. Results indicate that implementing low oxygen air injection has potential to improve oil recovery in high water cut light oil reservoir. The reservoir with higher matrix permeability and or lower reservoir permeability contrast ratio is desirable to achieve higher oil recovery factor. In addition, the oil recovery factor for water/gas alternate injection (WAG) strategy is higher than that of continuous low oxygen air flooding. And the WAG strategy has the ability to delay gas breakthrough compared with the strategy of continuous low oxygen air injection under same experiment condition.http://link.springer.com/article/10.1007/s13202-017-0389-0Low oxygen air injectionHigh water cutHeterogeneityEnhanced oil recovery
spellingShingle Hu Jia
Shu-Pin Yin
Xian-Ping Ma
Enhanced oil recovery mechanism of low oxygen air injection in high water cut reservoir
Journal of Petroleum Exploration and Production Technology
Low oxygen air injection
High water cut
Heterogeneity
Enhanced oil recovery
title Enhanced oil recovery mechanism of low oxygen air injection in high water cut reservoir
title_full Enhanced oil recovery mechanism of low oxygen air injection in high water cut reservoir
title_fullStr Enhanced oil recovery mechanism of low oxygen air injection in high water cut reservoir
title_full_unstemmed Enhanced oil recovery mechanism of low oxygen air injection in high water cut reservoir
title_short Enhanced oil recovery mechanism of low oxygen air injection in high water cut reservoir
title_sort enhanced oil recovery mechanism of low oxygen air injection in high water cut reservoir
topic Low oxygen air injection
High water cut
Heterogeneity
Enhanced oil recovery
url http://link.springer.com/article/10.1007/s13202-017-0389-0
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AT shupinyin enhancedoilrecoverymechanismoflowoxygenairinjectioninhighwatercutreservoir
AT xianpingma enhancedoilrecoverymechanismoflowoxygenairinjectioninhighwatercutreservoir