Advances in experimental research of induced polarization effect in reservoir rocks

Burtman, Vladimir; Gribenko, Alexander; Zhdanov, Michael S.

doi:10.1190/1.3513351

Cited by 9 publications

(15 citation statements)

References 7 publications

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“…We have also studied the IP effect in multiphase porous rocks in view of possible application in a HC exploration. The results of this study demonstrated that a resistivity of reservoir rocks saturated with the mixture of water and oil is complex and frequency dependent and that the oil-saturated sands and sandstone samples can be characterized by a significant IP response [32][33][34]. Similar results were also reported in the papers by Revil et al (2012Revil et al ( , 2013 [35,36].…”

Section: Introductionsupporting

confidence: 86%

“…This model was applied for GEMTIP fit of the experimental data at early stages of our research [32,33]. …”

Section: Development Of Effective-medium Model With Random Spherical mentioning

confidence: 99%

“…The coefficients λ la and γ la are the structural parameters defined by geometrical characteristics of the ellipsoidal inclusions[30,31,33], and they are functions of ellipticity el. And a l is an average value of the equatorial ( a lx and a ly ) and polar ( a lz ) radii of the ellipsoidal grains,…”

mentioning

confidence: 99%

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Induced polarization effect in reservoir rocks and its modeling based on generalized effective-medium theory

Burtman

Zhdanov

2015

Resource-Efficient Technologies

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One of the major tasks of the petroleum resource-efficient technologies (pREFFIT) is the development and improvement of the methods of exploration for energy resources. This review paper summarizes the results of the research on induced polarization (IP) effect in reservoir rocks conducted by the University of Utah Consortium for Electromagnetic Modeling and Inversion (CEMI) and TechnoImaging. The electrical IP effect in hydrocarbon (HC) bearing reservoir rocks having nonmetallic minerals is usually associated with membrane polarization, which is caused by a variation in the mobility of the ions throughout the rock structure. This mobility is related to the size and shape of the pores filled with electrolyte and the double electrical layers. We have studied the IP response of multiphase porous systems by conducting complex resistivity (CR) frequency-domain IP measurements for two different groups of samples: sands and sandstones containing salt water in pores and those whose unsaturated pores were filled with synthetic oil. We have also studied selected carbonate reservoir formations, typical of some major HC deposits. The generalized effective-medium theory of induced polarization (GEMTIP) was used to analyze the IP parameters of the measured responses. This paper presents a conceptual model of polarizing clusters to explain the observed IP phenomena. The results of this study show that the HC bearing sands and sandstone samples and carbonate rocks are characterized by a significant IP response. These experimental observations, compared with the theoretical modeling based on the GEMTIP approach, confirm earlier geophysical experiments with the application of the IP method for HC exploration.

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Section: Introductionsupporting

confidence: 86%

“…This model was applied for GEMTIP fit of the experimental data at early stages of our research [32,33]. …”

Section: Development Of Effective-medium Model With Random Spherical mentioning

confidence: 99%

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Induced polarization effect in reservoir rocks and its modeling based on generalized effective-medium theory

Burtman

Zhdanov

2015

Resource-Efficient Technologies

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“…The coefficients lα γ and lα λ are the structural parameters defined by geometrical characteristics of the ellipsoidal inclusions (Zhdanov, 2008;Burtman et al, 2010), and they are functions of ellipticity e l . If all the grains are oriented in one specific direction, the effective conductivity of this medium will become anisotropic.…”

Section: Effective-medium Model Formentioning

confidence: 99%

Spectral induced polarization effect in unconventional reservoir rocks

Burtman

Zhdanov³

2014

SEG Technical Program Expanded Abstracts 2014

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Unconventional hydrocarbon (HC) reserves, e.g., heavy oils, bituminous sands, and oil-and gas-shale substantially surpass those of conventional resources and therefore are extremely economically attractive; however, exploration and production of unconventional reserves is challenging. This paper demonstrates that one can observe significant induced polarization (IP) effects in shale reservoir rocks, which can be used in exploration for unconventional reserves. This study is based on application of the generalized effective-medium theory of induced polarization (GEMTIP) for analysis of the complex resistivity (CR) of oil-and gas-shale rocks. GEMTIP modeling provides a basis for remote petrophysical analysis of shale rocks, which we compared with an actual structural analysis of shale rocks using Quantitative Evaluation of Minerals by Scanning Electron Microscopy (QEMSCAN) and core analysis. We demonstrate that GEMTIP modeling provides an evaluation of mineral composition and volume fractions in rock samples. Spectral induced polarization (SIP) measurements were conducted for different types of shale rocks to test the feasibility of the SIP method and GEMTIP modeling for studying unconventional HC reserves. The results of this study provide a basis for future application of the SIP method for exploration and monitoring of unconventional reserves.

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“…The expression for GEMTIP model in this case takes the following form: [33], and they are functions of ellipticity e l . If all the grains are oriented in one specific direction, the effective conductivity of this medium will become anisotropic.…”

Section: Effective-medium Model For Analysis Of Complex Resistivity Imentioning

confidence: 99%

Experimental Study of Induced Polarization Effect in Unconventional Reservoir Rocks

Burtman¹,

Fu²,

Zhdanov³

2014

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Unconventional hydrocarbon reserves substantially surpass those of conventional resources and therefore are extremely economically attractive. However, exploration and production of unconventional reserves is challenging. This paper demonstrates that one can observe significant induced polarization effects in shale reservoir rocks, which can be used in exploration for unconventional reserves. The generalized effective-medium theory of induced polarization (GEMTIP) was used to model the complex resistivity of shale rocks. We demonstrate that GEMTIP modeling provides an evaluation of mineral composition and volume fractions in rock samples. We have conducted spectral induced polarization (IP) measurements using different types of shale rocks to test the feasibility of the IP method and GEMTIP modeling for studying unconventional hydrocarbon (HC) reservoir rocks.

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Advances in experimental research of induced polarization effect in reservoir rocks

Cited by 9 publications

References 7 publications

Induced polarization effect in reservoir rocks and its modeling based on generalized effective-medium theory

Induced polarization effect in reservoir rocks and its modeling based on generalized effective-medium theory

Spectral induced polarization effect in unconventional reservoir rocks

Experimental Study of Induced Polarization Effect in Unconventional Reservoir Rocks

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