EOR: Current Status and Opportunities

Manrique, Eduardo; Thomas, C.; Ravikiran, Ravi; Kamouei, Mehdi Izadi; Lantz, Michael; Romero, Jorge M. Ramirez; Alvarado, Vladimir

doi:10.2523/130113-ms

Cited by 70 publications

(38 citation statements)

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“…12,13 Water cut can be reduced up to 50% and the resistance factor can be increased by 5 to 15% as a result of polymer flooding. 11 China is leading in the implementation of PF projects 14,15 and Daqing oil field of China is the largest oil field in terms of PF project deployment. 16 Up to 2004, there were 31 commercial scale PF projects only in the Daqing field with 2427 injection wells.…”

Section: Introductionmentioning

confidence: 99%

Review on Polymer Flooding: Rheology, Adsorption, Stability, and Field Applications of Various Polymer Systems

Kamal¹,

Sultan²,

et al. 2015

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Polymer flooding is one of the most promising techniques for the recovery of remaining oil from light oil reservoirs. Water soluble polymers are used to enhance the viscosity of displacing fluid and to improve the sweep efficiency. In this paper, water soluble polymers used for chemical enhanced oil recovery are reviewed. Conventional and novel modified polymers are discussed along with their limitations. The review covers thermal stability, rheology, and adsorption behavior of various polymer systems in sandstone and carbonate reservoirs. Field and laboratory core flooding data of several polymers are covered. The review describes the polymer systems that are successfully applied in low-temperature and low-salinity reservoirs. Comprehensive review of current research activities aiming at extending polymer flooding to high-temperature and high-salinity reservoirs is performed. The review has identified current and future challenges of polymer flooding.

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Section: Introductionmentioning

confidence: 99%

Review on Polymer Flooding: Rheology, Adsorption, Stability, and Field Applications of Various Polymer Systems

Kamal¹,

Sultan²,

et al. 2015

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“…Recent statistics (2004) indicate that the overwhelming majority (almost 80%)% of all IOR method implementations concerned sandstone reservoirs [28] . Despite the dominance of thermal methods for IOR from sandstone reservoirs, these methods also account for the lowest share of projects for IOR from carbonate reservoirs, because of the rapid heat loss to overburden and underburden rock layers [38] .…”

Section: Ior Methods Screening Comparison and Selectionmentioning

confidence: 99%

A database and workflow integration methodology for rapid evaluation and selection of Improved Oil Recovery (IOR) technologies for heavy oil fields

Kalateh

Ogg²,

Charkazova³

et al. 2016

Advances in Engineering Software

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a b s t r a c tConventional crude oil is the currently dominant but a non-renewable energy resource. Despite the development and improvement of alternative energy technologies, there is still a large gap between the capability of renewable energy systems to capture and reliably supply power, and the ever-increasing global energy demand requirements. Therefore, until technological innovations facilitate sufficient energy generation through alternative fuels, other means of sustaining crude oil production, such as Improved Oil Recovery (IOR) methods, must be systematically explored. Beyond increasing production of conventional oil, IOR methods can effectively facilitate the extraction of oil from unconventional reservoirs, such as heavy oil fields. This capability is of high strategic importance due to the considerably large size of global heavy oil reserves.There are several IOR technologies available, but each of them is suitable only for certain oil field types. The aim of this paper is to illustrate an alternative, low-cost, quick screening method which is competitive to more technically laborious and costly methods for selecting the most suitable technology for a given heavy oil extraction project, using a limited dataset. A two-stage technology screening method is hereby proposed: the first stage is based on previous project literature data evaluation, and the second stage is based on simple empirical oil production correlation methods (such as the Marx & Langenheim model) coupled with Ingen's RAVE (Risk and Value Engineering) and Schlumberger's PIPESIM software applications. The new method can achieve reasonably accurate results and minimise cost and time requirements during the preliminary stages of an oilfield development project, as evidenced via a comprehensive case study.

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“…More than 50 blocks of polymer flooding have been applied in the oilfield thus far; the average incremental oil recovery factor was approximately 13% (OOIP) greater than that when water flooding was performed, and the accumulated oil production by polymer flooding has achieved 792 million bbls, where one ton of polymer powder can increase oil by approximately 870 bbls [15][16][17]. As seen, considerable economic benefits have been obtained.…”

Section: Introductionmentioning

confidence: 99%

The Performance of Polymer Flooding in Heterogeneous Type II Reservoirs—An Experimental and Field Investigation

Zhong

Zhang

et al. 2017

Energies

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Abstract:The polymer flooding process has already been applied to the medium permeability type II reservoirs of the Daqing Oilfield (China) to enhance oil recovery. However, this process faces a number of challenges, such as the flooding efficiency, high injection pressure, formation blockage and damage, unbalanced absorption ratio, and economical justification. In this study, single-phase and two-phase flow experiments are performed to investigate polymer injection adaptability with natural cores of type II reservoirs. The enhanced oil recovery (EOR) effects of the polymer are studied by physical simulation experiments, and the results of application in an actual field are also presented. The results indicate that the flow characteristics and injection capability are dominated by the reservoir permeability in polymer flooding. Moreover, the adsorption of polymer molecules and the injection pressure gradient, which reflect formation damage, are affected more significantly by the concentration than by the molecular weight in type II reservoirs. Using the matching relationship, the injection-production process is stable, and additional oil recoveries of 10%-15% can be obtained in heterogeneous type II reservoirs with a high water saturation. This work is significant in that it further accelerates the application of polymer flooding EOR in medium permeability heterogeneous oilfields with high water saturation.

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EOR: Current Status and Opportunities

Cited by 70 publications

References 0 publications

Review on Polymer Flooding: Rheology, Adsorption, Stability, and Field Applications of Various Polymer Systems

Review on Polymer Flooding: Rheology, Adsorption, Stability, and Field Applications of Various Polymer Systems

A database and workflow integration methodology for rapid evaluation and selection of Improved Oil Recovery (IOR) technologies for heavy oil fields

The Performance of Polymer Flooding in Heterogeneous Type II Reservoirs—An Experimental and Field Investigation

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