Mobility Control Experience in the Joffre Viking Miscible CO2 Flood

Stephenson, D.J.; Graham, Andrew G.; Luhning, R.W.

doi:10.2118/23598-pa

Cited by 76 publications

(35 citation statements)

References 6 publications

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“…This occurs primarily because of reservoir heterogeneity and also the density and viscosity contrast between the injected gas and the reservoir fluids. Injected gas tends to flow preferentially through high permeability streaks (channelling) while viscosity and density differences result in viscous fingering and gravity override respectively [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Foam stability in the presence and absence of hydrocarbons: From bubble- to bulk-scale

Osei-Bonsu

Shokri

Grassia

2015

Colloids and Surfaces A: Physicochemical and Engineering Aspect

221

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Section: Introductionmentioning

confidence: 99%

Foam stability in the presence and absence of hydrocarbons: From bubble- to bulk-scale

Osei-Bonsu

Shokri

Grassia

2015

Colloids and Surfaces A: Physicochemical and Engineering Aspect

221

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“… Canada actually reports CO 2 floods in Joffre and Pembina fields [18,151]. Operators and government institutions of Canada have been very active evaluating CO 2 -EOR potential during the last decade [152,153].…”

Section: Chemical Methodsmentioning

confidence: 99%

Enhanced Oil Recovery: An Update Review

2010

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With the decline in oil discoveries during the last decades it is believed that EOR technologies will play a key role to meet the energy demand in years to come. This paper presents a comprehensive review of EOR status and opportunities to increase final recovery factors in reservoirs ranging from extra heavy oil to gas condensate. Specifically, the paper discusses EOR status and opportunities organized by reservoir lithology (sandstone and carbonates formations and turbiditic reservoirs to a lesser extent) and offshore and onshore fields. Risk and rewards of EOR methods including growing trends in recent years such as CO 2 injection, high pressure air injection (HPAI) and chemical flooding are addressed including a brief overview of CO 2 -EOR project economics.

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“…CO2 injected into this medium-to high-permeable sandstone lens reservoir contacted only the upper third of the formation, with segregated flow as close to the injector as 15 m. A foam pilot was done to attempt reducing gravity override by in-depth foam propagation [17,18]. The test pattcrn was nearing the end of its economic Iife.…”

Section: Joffre Vikingmentioning

confidence: 99%

Foam Field Tests: State of the Art and Critical Review

Castanier¹,

Hanssen²

1995

IOR 1995 - 8th European Symposium on Improved Oil Recovery

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This paper gives a current overview of field experience with the use of foam for improved recovery and a ciitical evaluation of selected pilot projects. The focus is on identifying and describing critical problems encountered in foaxn tests arid suggesting improvements.Foam applications are classified by the type of gas injected and the type of foam process. This is important since the choice of foamer is process dependent as well as reservoir dependent. The processes evaluated include the use of foam in cyclic steam, steam drive, CO 2 drive, hydrocarbon-gas/nitrogen diversion and in-depth mobility control, GOR-control treatment of production welLs, and water diversion treatment. The reservoir aspect ratio is a useful parameter for comparing foam process varieties and understanding the different application environments.The use of foam in conjunction with steam is a mature and proven technology that, even at current oil prices, cnn be applied in many fields at an attractive cost over that of steam. A key question addressed by this paper is how the positive experience with foam can be successfulty transferred to other gases, for which results are more mixed.Many technical failures are explainable by erroneous problem definition. Either the reservoir cause of the production problem observed was not known, or an in itself viable foam process was applied to the wrong reservoir. In many cases, reservoir description was poor prior to the foam test, and insufficient data were collected during the test to obtain a clear picture of the effects of the foam. Interference from neighboring patterns or welis often cause problems with interpreting the effects of a foam treatment. The presence of fractures may have been the cause of several failed test.s. Only in one case was a treaunent procedure devîsed specifically to account for fractures, with encouraging results. A few early failures appear to have been due to use of thermaily sensitive foainers. In some later tests, the choice of foamer appears less than optimal in view of later, comparable product selection efforts. A few projects were rated as technical successes but economic failures, but the cost of chemicals was generaily not the cause of this problem. Production well treatments, which have been rarely used in the past, show definite possibiliues for the near future. IntroductionThe combination of a gas and a foaming agent injected in a hydrocarbon reservoir can generate a foam. In broad terms, foam can be described as a continuous liquid phase surrounding a discontinuous gas phase. As the liquid network is composed of thin films reducing and sometimes even biocking the gas flow, this process can be applied to improved and enhanced oil recovery. Foam has been used to improve the injection of various gases, as a means of reducing coning and cusping in producers, to improve gas storage and in some cases to enhance waterflooding. Figure 1 illustrates the different problems with gas injection that foam can soive.The practical oilfield experience with foam spans ...

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Mobility Control Experience in the Joffre Viking Miscible CO2 Flood

Cited by 76 publications

References 6 publications

Foam stability in the presence and absence of hydrocarbons: From bubble- to bulk-scale

Foam stability in the presence and absence of hydrocarbons: From bubble- to bulk-scale

Enhanced Oil Recovery: An Update Review

Foam Field Tests: State of the Art and Critical Review

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