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Resistivity and spontaneous (SP) logging

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Journal Articles
Journal of Petroleum Technology 22 (11): 1437–1446.
Paper Number: SPE-2551-PA
Published: 01 November 1970
...E.A. Koerperich Koerperich, E.A., SPE-AIME, Shell Oil Co. In this method of logging, a recording of the potential difference between two SP electrodes yields a curve that may facilitate and improve sand counts, and that might be amenable to automatic computerized interpretation. Spurious SP...
Proceedings Papers

Paper presented at the SPWLA 48th Annual Logging Symposium, June 3–6, 2007
Paper Number: SPWLA-2007-H
... (m), from the combined use of borehole raw array-induction resistivity measurements and spontaneous potential (SP) in water-bearing intervals. Combined inversion of resistivity and SP measurements is performed assuming a piston-like invasion profile. In so doing, the reservoir is divided into...
Proceedings Papers

Paper presented at the SPE Rocky Mountain Regional Meeting, May 11–13, 1988
Paper Number: SPE-17516-MS
... conventional sp analysis SPE Society of Petroleum Engineers SPE 17516 Water Resistivity From Spontaneous Potential Logs in the Minnelusa Formation, Powder River Basin, Wyoming by B.A. Policky, Marathon Oil Co., and W.P. Iverson, U. of Wyoming SPE Members Copyright 1988 Society of Petroleum Engineers This...
Proceedings Papers

Paper presented at the SPWLA 56th Annual Logging Symposium, July 18–22, 2015
Paper Number: SPWLA-2015-B
... Abstract Spontaneous Potential (SP) and Gamma Ray (GR) logs are often the only measurements available in many old hydrocarbon fields. Reliable coupled petrophysical interpretation of GR and SP logs requires previous accurate quantitative calibration for the effects of shale laminations, water...
Proceedings Papers

Paper presented at the 2018 SEG International Exposition and Annual Meeting, October 14–19, 2018
Paper Number: SEG-2018-2998496
... including electrical resistivity, spontaneous potential (SP), and EM 34. In addition, Total Dissolved Salt (TDS) data were provided from groundwater samples collected from wells. Our results from EM 34, Resistivity and TDS, suggest a highly conductive zone in the study area. Presence of conductive medium in...
Journal Articles
Petrophysics - The SPWLA Journal of Formation Evaluation and Reservoir Description 25 (04).
Paper Number: SPWLA-1984-vXXVn4a2
Published: 01 July 1984
... salinity within the interval analyzed. CONCEPT OF THE RESISTIVITY - SPONTANEOUS POTENTIAL CROSSPLOT The development of the R, - SP crossplot utilizes two basic relations, equation (4) and the simplified form of the SP formula: SP = -K log R,f R, (5) where R, is the mud filtrate resistivity and K is a coefl...
Proceedings Papers

Paper presented at the SPWLA 48th Annual Logging Symposium, June 3–6, 2007
Paper Number: SPWLA-2007-ZZ
... the determination of permeable layers, they influence the calculation of formation water resistivity which requires the Static Spontaneous Potential (SSP) computed from the SP. In order to correct these effects, many correction charts have been created. However, in very complicated logging...
Proceedings Papers

Paper presented at the Fall Meeting of the Society of Petroleum Engineers of AIME, October 7–8, 1962
Paper Number: SPE-437-MS
... formation temperature SP coefficient spontaneous potential curve well logging correlation investigation Upstream Oil & Gas mud filtrate brine solution core plug determination log analysis water resistivity coefficient apparatus Formation Resistivity Factor Formation Water...
Journal Articles
Journal of Petroleum Technology 63 (05): 83–85.
Paper Number: SPE-0511-0083-JPT
Published: 01 May 2011
... Upstream Oil & Gas chemical composition log analysis breakthrough real-time measurement real time system waterflooding Brine te potential intelligent well inflow mineral surface SP signal gradient spontaneous potential water front reservoir electrode ek potential salinity saturation...
Proceedings Papers

Paper presented at the SPWLA 50th Annual Logging Symposium, June 21–24, 2009
Paper Number: SPWLA-2009-65257
... Conventional Spontaneous Potential (SP) measurements are usually affected by many factors such as formation thickness, formation resistivity, mud resistivity, and borehole diameter. Because of these factors, the measured SP values could be much less than the Static SP (SSP) values and thus...
Journal Articles
Journal: SPE Journal
SPE Journal 17 (01): 53–69.
Paper Number: SPE-135146-PA
Published: 16 January 2012
... long been used to characterize reservoir properties such as permeable-bed boundaries and formation-brine resistivity ( Schlumberger et al. 1934 ; Mounce and Rust 1944 ; Doll 1948 ; Hallenburg 1971 ). The SP signal recorded during logging is primarily electrochemical (EC) in origin; contrasts in...
Journal Articles
Petrophysics - The SPWLA Journal of Formation Evaluation and Reservoir Description 36 (05).
Paper Number: SPWLA-1995-v36n5a3
Published: 01 September 1995
...). In addition, Figure 5 shows the SP excursion is much smaller in the more conductive solution than that measured in the resistive solution. In logging environments, this corresponds to the case of a freshwater 40 The Log Analyst September-October 1995 Spontaneous Potential: Laboratory Experiments and...
Journal Articles
Neftyanoe khozyaystvo - Oil Industry 2019 (10): 38–41.
Paper Number: OIJ-2019-10-038-041-RU
Published: 01 October 2019
...O. B. Kuzmichev; A. V. Zhonin; Yu. V. Martynova; S. A. Kolomasova The PDF file of this paper is in Russian. In layers of limited thickness and high resistance, the amplitude of the spontaneous potential (SP) logs differs significantly from the amplitude corresponding to the layer of unlimited...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 19–22, 2010
Paper Number: SPE-135146-MS
... upstream oil & gas waterfront magnitude production well brine jackson sp signal Measurements of spontaneous potential (SP), logged prior to production or injection using wireline tools, have long been used to characterize reservoir properties such as permeable bed boundaries and formation...
Journal Articles
Petrophysics - The SPWLA Journal of Formation Evaluation and Reservoir Description 42 (03).
Paper Number: SPWLA-2001-v42n3a2
Published: 01 May 2001
... resistivity of a sample of water, calculation using a water saturation equa- tion (e.g., the Archie equation) in a nearby wet zone, or using the value of R, from a nearby well or field (assuming the water has the same properties), and calculation of R, from the spontaneous potential (SP) log. The conventional...
Journal Articles
Petrophysics - The SPWLA Journal of Formation Evaluation and Reservoir Description 39 (03).
Paper Number: SPWLA-1998-v39n3a4
Published: 01 May 1998
... Log Analysts Upstream Oil & Gas NMR log conductivity log analysis water saturation porosity log analyst shale Reconstruct SP Houston coates chemical activity saturation resistivity log well logging cec model filtrate clay mineral water-filled porosity interpretation...
Journal Articles
Journal of Petroleum Technology 24 (02): 151–153.
Paper Number: SPE-3570-PA
Published: 01 February 1972
... Spontaneous Potential (SP) Log. As implied by Gillingham, zonal differences between SP logs run in wells while they are shut in and during injection are related to flow rate. This technique has the sensitivity to profile most open-hole or fiber-glass-lined fresh water injection wells, but lacks the...
Journal Articles
Neftyanoe khozyaystvo - Oil Industry 2016 (08): 20–24.
Paper Number: OIJ-2016-08-020-024-RU
Published: 01 August 2016
... podschetnykh parametrov na osnove sovmestnoy interpretatsii dannykh karotazha PS i elektrometodov GIS dlya starogo fonda skvazhin (In- tREst) (Determination of calculation parameters on the basis of the joint inter- pretation of SP logging and electrical methods data for old wells (IntREst Authors: Kuz'michev...
Journal Articles
Journal of Petroleum Technology 2 (07): 205–214.
Paper Number: SPE-950205-G
Published: 01 July 1950
... clean sand Computation drilling fluid management & disposal drilling fluid formulation salinity electromotive force boundary sand streak expression shaly sand pseudo-static sp resistivity variation mud filtrate potential drop connate water sp current T.P. 2912 THE SP LOG IN SHALY...
Proceedings Papers

Paper presented at the SPWLA 28th Annual Logging Symposium, June 29–July 2, 1987
Paper Number: SPWLA-1987-SS
... ABSTRACT In the early days of well logging the Spontaneous Potential (SP) log was used extensively by Interpreters to detect the presence of clean permeable zones and to estimate the potential of hydrocarbon prospects. Unfortunately, in today's modern formation evaluation programs, except for...

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