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Archie equation
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Proceedings Papers
Publisher: Society of Exploration Geophysicists
Paper presented at the 2012 SEG Annual Meeting, November 4–9, 2012
Paper Number: SEG-2012-0151
... (Archie, 1942), carbonates show a more complex behavior due to their intricate pore system. Archie’s equation is only valid for carbonates with connected interparticle pore space, whereas it fails if moldic or vuggy porosity not contributing to electrical conductivity are present. The aim of this study...
Proceedings Papers
Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Production and Operations
Symposium, March 24–27, 2001
Paper Number: SPE-67204-MS
... Abstract Archie found an empirical equation for consolidated sandstones relating several formation parameters, such as, porosity and water saturation. Despite its common use by petroleum engineers, Archie equation is not easy to apply to carbonate rocks because formation parameters ( a, m, n...
Proceedings Papers
Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the Abu Dhabi International Petroleum Exhibition and Conference, October 13–15, 2000
Paper Number: SPE-87302-MS
... Abstract Archie (1941) found an empirical equation for consolidate sandstone relating some formation parameters, porosity and water saturation. Archie equation is not easy to apply to rocks because formation parameters (a, m and n) are fimctions of electrical tortuosity. Electrical tortuosity...
Proceedings Papers
Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Argentina Exploration and Production of Unconventional Resources Symposium, March 20–22, 2023
Paper Number: SPE-212425-MS
... equation (1942) and Pickett plots (1966, 1973) have been used with the inclusion of thin bed heterogeneity. Despite the complexity, the analysis reveals the variability of both naturally fractured and oil-wet shale characteristics of Vaca Muerta. Several published studies have used Archie's equation...
Journal Articles
Petrophysics 61 (05): 450–472.
Paper Number: SPWLA-2020-v61n5a4
Published: 01 October 2020
...Raghu Ramamoorthy; T. S. Ramakrishnan; Suvodip Dasgupta; Ishan Raina Archie's empirical resistivity-saturation relation of 1942 is widely applied in the petroleum industry. Despite its shortcomings, Archie's equation is the basis for inferring water saturation, even in carbonates with complex pore...
Proceedings Papers
Paper presented at the SPWLA 60th Annual Logging Symposium, June 15–19, 2019
Paper Number: SPWLA-2019-P
...SPWLA 60th Annual Logging Symposium, June 15-19, 2019 DOI: 10.30632/T60ALS-2019_P 1 TOWARDS A PETROPHYSICALLY CONSISTENT IMPLEMENTATION OF ARCHIE S EQUATION FOR HETEROGENEOUS CARBONATE ROCKS Raghu Ramamoorthy, Independent; T.S.Ramakrishnan, Suvodip Dasgupta, Ishan Raina, Schlumberger Copyright 2019...
Journal Articles
Publisher: Society of Petroleum Engineers (SPE)
SPE Res Eval & Eng 17 (02): 141–151.
Paper Number: SPE-167507-PA
Published: 04 April 2014
... 2014 29 7 2013 8 5 2014 Copyright 2014, Society of Petroleum Engineers A porous medium can be represented by a parallel bundle of electrical/tortuous paths of matrix pore, fracture, vug, matrix, and shale. For this system, In 1942, Archie developed, empirically, two equations...
Proceedings Papers
Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Nigeria Annual International Conference and Exhibition, August 5–7, 2013
Paper Number: SPE-167507-MS
.... The paper develops the theory from the parallel resistivity model and then extends it for series resistivity model. When applied for clean sand, the theory derives Archie equations from first principle. The derivations show that both porosity exponent and saturation exponent are of the same origin...
Proceedings Papers
Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Middle East Oil and Gas Show and Conference, March 15–18, 2009
Paper Number: SPE-120517-MS
... is conventionally obtained from the Archie's equation, which requires inputs of porosity, ø, cementation factor, m , tortuosity factor, a , saturation exponent, n , true reservoir resistivity, R t , and resistivity of formation water, R w . Uncertainties in these input values directly affect the accuracy...
Proceedings Papers
Paper presented at the SPWLA 49th Annual Logging Symposium, May 25–28, 2008
Paper Number: SPWLA-2008-HHH
... Upstream Oil & Gas shell fragment hydrate hydrate saturation electric current water saturation Symposium geological survey log analysis modeling Cascadia margin spwla 49th resistivity sediment equation Archie well logging Jackson porosity saturation methane hydrate...
Proceedings Papers
Paper presented at the SPWLA 30th Annual Logging Symposium, June 11–14, 1989
Paper Number: SPWLA-1989-F
... ABSTRACT Formation factor is a simple function of porosity (Archie's formation factor equation) for only a very restricted range of rock types. The diagenetic geometric assumptions implicit in a negative log-linear relationship between resistivity and porosity can be used to define...
Proceedings Papers
Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the Middle East Oil Show, March 11–14, 1989
Paper Number: SPE-17942-MS
... ABSTRACT A new approach in determining the parameters of the Archie's equation a, m and n is presented in this paper. It is based on the use of water saturation from the core or from an EPT type measurement and the resistivity of the formation where this water saturation is known. The proposed...
Images
Published: 14 April 2012
Figure 7 2961 well log. Water saturation using Archie equation. More about this image found in 2961 well log. Water saturation using Archie equation.
Images
Published: 10 November 2014
Figure 1 Components of Archie equation More about this image found in Components of Archie equation
Images
Published: 26 September 2004
Fig. 6 Core data fitting using EREM model and Archie equation. The core is turbidite sandstone from West Africa. EREM provides an estimation of critical saturation and fits the measurements slightly better than Archie equation in this case. More about this image found in Core data fitting using EREM model and Archie equation. The core is turbidi...
Images
Published: 26 September 2004
Fig. 7 Core data fitting using EREM model and Archie equation for another set of measurements. More about this image found in Core data fitting using EREM model and Archie equation for another set of m...
Images
Published: 01 November 2010
Figure 3 Archie equation, most probable error estimation for induction resistivity log (D. P. Murphy 1996–2007) More about this image found in Archie equation, most probable error estimation for induction resistivity l...
Images
Published: 01 November 2010
Figure 11 Variable cementation factor from Sigma in Archie equation More about this image found in Variable cementation factor from Sigma in Archie equation
Images
Published: 01 November 2010
Figure 12 Variable cementation factor from Sigma in Archie equation More about this image found in Variable cementation factor from Sigma in Archie equation
Images
Published: 12 June 2006
Figure 18 Variation of Archie equation exponents, as function of length ratio. Valid for both tortuosity and saturation exponents, since the same mathematical equation form applies to formation factor and resistivity index. More about this image found in Variation of Archie equation exponents, as function of length ratio. Valid ...
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