Self-Potential Profiling - A New Technique For Determination Of Heat Movement In A Thermal Oil Recovery Flood

Dorfman, M.H.; Oskay, Mehmet Melih; Gaddis, M.P.

doi:10.2118/6790-ms

Cited by 18 publications

(5 citation statements)

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“…In porous media, little is known about this effect and its polarity and magnitude. Laboratory measurements were reported by Marshall and Madden (1959), Nourbehecht (1963), Dorfman et al (1977), Corwin and Hoover (1979), Fitterman and Corwin (1982), and recently by Leinov et al (2010).…”

Section: Intrinsic Thermoelectric Effectmentioning

confidence: 93%

Self-potential monitoring of a thermal pulse advecting through a preferential flow path

Ikard

Revil

2014

Journal of Hydrology

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There is a need to develop new non-intrusive geophysical methods to detect preferential flow paths in heterogeneous porous media. A laboratory experiment is performed to non-invasively localize a preferential flow pathway in a sandbox using a heat pulse monitored by time-lapse self-potential measurements. Our goal is to investigate the amplitude of the intrinsic thermoelectric self-potential anomalies and the ability of this method to track preferential flow paths. A negative self-potential anomaly (-10 to-15 mV with respect to the background signals) is observed at the surface of the tank after hot water is injected in the upstream reservoir during steady state flow between the upstream and downstream reservoirs of the sandbox. Repeating the same experiment with the same volume of water injected upstream, but at the same temperature as the background pore water, produces a negligible self-potential anomaly. The negative selfpotential anomaly is possibly associated with an intrinsic thermoelectric effect, with the temperature dependence of the streaming potential coupling coefficient, or with an apparent thermoelectric effect associated with the temperature dependence of the electrodes themselves. We model the experiment in 3D using a finite element code. Our results show that time-lapse self-potential signals can be used to track the position of traveling heat flow pulses in saturated porous materials, and therefore to find preferential flow pathways, especially in a very permeable environment and in real time. The numerical model and the data allows quantifying the intrinsic thermoelectric coupling coefficient, which is on the order of-0.3 to-1.8 mV per degree Celsius. The temperature dependence of the streaming potential during the experiment is negligible with respect to the intrinsic thermoelectric coupling. However, the temperature dependence of the potential of the electrodes needs to be accounted for and is far from being negligible if the electrodes experience temperature changes.

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Section: Intrinsic Thermoelectric Effectmentioning

confidence: 93%

Self-potential monitoring of a thermal pulse advecting through a preferential flow path

Ikard

Revil

2014

Journal of Hydrology

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“…Various physical mechanisms have been proposed as contributors to these potentials below and above the boiling point of crustal liquids. These include electrokinetic (EK) potentials [ Nourbehecht , 1963], diffusion potentials as commonly observed in well logs at material boundaries [ Morgan et al , 1989] and thermoelectric potentials [ Nourbehecht , 1963; Dorfman et al , 1977].…”

Section: Can the Sign Of The Initial Positive Potentials Be Explainedmentioning

confidence: 99%

Reply to comment by Revil on “Rapid Fluid Disruption: A source for self‐potential anomalies” by M. J. S. Johnston, J. D. Byerlee, and D. Lockner

2002

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“…15 Results of the first two surveys have been inconClusive because we have no baseline survey for comparison. Estimates of the location of the bum front were made with the method proposed by Gates and Ramey 14 as well as with volumetric-type calculations.…”

Section: Project Responsementioning

confidence: 99%

Initiation of an In-Situ Combustion Project in a Thin Oil Column Underlain by Water

Horne¹,

Bousaid²,

Dore³

et al. 1982

Journal of Petroleum Technology

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An in-situ combustion project was initiated in the Caddo Pine Island field in a thin oil column underlain by a water zone. An inverted five-spot well pattern was selected for the project, and the formation was ignited in Sept. 1980 to evaluate the potential of enhanced oil recovery by a combustion process. This paper presents engineering and laboratory procedures used in evaluating the reservoir for in-situ combustion. The program used to monitor the project performance, including both surface and subsurface measurements, is discussed. The paper reviews the design and installation procedures for the project wells and surface facilities, and presents project results.

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Self-Potential Profiling - A New Technique For Determination Of Heat Movement In A Thermal Oil Recovery Flood

Cited by 18 publications

References 0 publications

Self-potential monitoring of a thermal pulse advecting through a preferential flow path

Self-potential monitoring of a thermal pulse advecting through a preferential flow path

Reply to comment by Revil on “Rapid Fluid Disruption: A source for self‐potential anomalies” by M. J. S. Johnston, J. D. Byerlee, and D. Lockner

Initiation of an In-Situ Combustion Project in a Thin Oil Column Underlain by Water

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