A scaled experiment for the verification of the SeaBed Logging method

Løseth, L. O.; Pedersen, Hans M.; Schaug-Pettersen, T.; Ellingsrud, S.; Eidesmo, T.

doi:10.1016/j.jappgeo.2007.12.002

Cited by 30 publications

(11 citation statements)

References 19 publications

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“…The wavelength of electromagnetic waves transmitted by an antenna can be calculated with the equation (1). After the wavelength was calculated, the length of the straight dipole antenna can be calculated with the help of the equation (2) [23].…”

Section: A Antenna Designmentioning

confidence: 99%

Optimum Conditions for EOR Using Nanofluids Subjected to EM Waves

Kashif

Puspitasari

2017

JMEST

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Today's major challenge for oil industry is to improve the oil recovery from the reservoir. Various enhanced oil recovery (EOR) methods have been applied in the field and the steam injection is one of the most favourable methods. The deep reservoir will result in failure of this method due to excessive heat dissipation. In this situation, generating and injecting steam may be uneconomical due to the tremendous reduction of the recovery. Some methods using nanotechnology have been introduced and elaborated. However, we propose the electromagnetic (EM) method as an alternative due to its long range transmission of the transverse waves. These EM waves, coupled with some nanoparticles (NP), can modify the surface energy. We propose an optimum conditions based on some parameters namely, frequency, flux density, space charge density and skin depth, employing Maxwell and Helmholtz equations which interact with some magnetic and dielectric nanoparticles. A newly-designed EM antenna with a very high flux density is the model for this specific purpose. The electrical energy from the antenna transfers the waves to the dielectric and resistive nanoparticles, which is then transferred to the fluid with high capillary force. This results in lower surface tension which reduces the oil viscosity. In order to investigate the transport phenomena of the nanoparticles in porous medium, we applied Darcy's law. Our preliminary study for scale model simulations showed that at a frequency of 0.125Hz, the electric field of the curve antenna with magnetic feeders was 4280% higher compared to the one without magnetic feeders,At a frequency of 0.125Hz, the magnetic field of the curve antenna with magnetic feeders was 3677% higher in comparison with the one without magnetic feeders. With the increasing frequency from 0.125Hz to 9Hz, the electric field and magnetic field of the antenna with feeders decreased by 99%. The permeability and porosity of glass beads packed column was 30.58mD and 25.87 % respectively. It was observed that the cumulative recovery of oil reached 21.11% by usingZnO nanofluid with electromagnetic waves, 17.23% by using ZnO nanofluid without electromagnetic waves, 32.59% by using iron oxide nanofluid with electromagnetic waves, and 29.68% by using iron oxide nanofluid without electromagnetic waves. In summary, the use of ZnO and iron oxide nanoparticles as nanofluids with electromagnetic waves is considered the most effective to use in enhanced oil recovery.

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Section: A Antenna Designmentioning

confidence: 99%

Optimum Conditions for EOR Using Nanofluids Subjected to EM Waves

Kashif

Puspitasari

2017

JMEST

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“…The latest research papers have considered only the responses from the solid (homogeneous) reservoir models with isotropic (Abubakar et al, 2009;Constable and Weiss, 2006;Da Silva et al, 2012;Kang et al, 2012;Key and Ovall, 2011;Løseth et al, 2008;Myer et al, 2012;Ray and Key, 2012;Sasaki, 2011;Schwarzbach et al, 2011;Tehrani and Slob, 2010;Weiss and Constable, 2006) or anisotropic (Brown et al, 2012;Li and Dai, 2011;Ramananjaona et al, 2011;Wiik et al, 2011) resistivity.…”

Section: Introductionmentioning

confidence: 99%

Electromagnetic field analysis in the marine CSEM detection of homogeneous and inhomogeneous hydrocarbon 3D reservoirs

Persova

Soloveichik

Domnikov

et al. 2015

Journal of Applied Geophysics

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“…Receivers are placed on the sea floor to detect direct, reflected and guided waves from the seabed. Guided waves from the deep target have very low magnetic field strength [1][2][3][4][5][6][7][8][9][10][11][12][13], whereas oil and gas industry require strong electromagnetic signals with low signal to noise ratio for the detection of the deep targets. Nanoferrites have been used in many practical and technological applications, such as, magnetic devices in electronics, optical and microwave devices, memory storage, waveguides, isolators, permanent magnets, inductors, circulators phase shifters, relays, sensors and antennas etc.…”

Section: Introductionmentioning

confidence: 99%

Mn0.8Zn0.2Fe2O4 nanoparticulates spinel ferrites: An approach to enhance the antenna field strength for improved magnitude versus offset (MVO)

Akhtar¹,

Nasir²,

Kashif³

et al. 2014

Progress in Natural Science: Materials International

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Electromagnetic signals in deep reservoir are very weak so that it is difficult to predict about the presence of hydrocarbon in seabed logging (SBL) environment. In the present work, Mn 0.8 Zn 0.2 Fe 2 O 4 nanoferrites were prepared by a sol-gel technique at different sintering temperatures of 450 1C, 650 1C and 850 1C to increase the strength of electromagnetic (EM) antenna. XRD, FESEM, Raman spectroscopy and HRTEM were used to analyze the phase, surface morphology and size of the nanoferrites. Magnetic properties of the nanoferrites were also measured using an impedance network analyzer. However, nanoferrites sintered at 850 1C with initial permeability of 200 and Q factor of 50 were used as magnetic feeders with the EM antenna. Lab scale experiments were performed to investigate the effect of magnetic field strength in scale tank. SPSS and MATLAB softwares were also used to confirm the oil presence in scale tank. It was observed that the magnitude of the EM waves for the antenna was increased up to 233%. Finally, the correlation values also show 208% increase in the magnetic field strength with the presence of the oil. Therefore, antenna with Mn 0.8 Zn 0.2 Fe 2 O 4 nanoferrites based magnetic feeders can be used for deep water and deep target hydrocarbon exploration.

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A scaled experiment for the verification of the SeaBed Logging method

Cited by 30 publications

References 19 publications

Optimum Conditions for EOR Using Nanofluids Subjected to EM Waves

Optimum Conditions for EOR Using Nanofluids Subjected to EM Waves

Electromagnetic field analysis in the marine CSEM detection of homogeneous and inhomogeneous hydrocarbon 3D reservoirs

Mn0.8Zn0.2Fe2O4 nanoparticulates spinel ferrites: An approach to enhance the antenna field strength for improved magnitude versus offset (MVO)

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