Seabed Logging On The North Sea Troll Field

Johnstad, S.E.; Farrelly, B.; Ringstad, C.

doi:10.4043/17661-ms

“…Values of detector's frequency should clearly clarified. It can lead to the determination of resonance in the detector to give the accurate measurements of the incoming electromagnetic wave [3], [8]. In this work, we choosed which detectors gave the most suitable reading of the frequency obtained at the oscilloscope.…”

Section: Resultsmentioning

confidence: 99%

Utilization Of Carbon Nanotubes In Electromagnetic Wave Detectors

Zakariah¹,

Puspitasari²

2017

JMEST

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Direct detection of hydrocarbon by an active source using electromagnetic (EM) energy termed seabed logging (SBL) has shown very promising results. However, currently available electromagnetic wave technology has a number of challenges include sensitivity and frequency matching. This paper presents development of the carbon nanotubes (CNTs) as electromagnetic wave detector due to outstanding properties of carbon nanotubes. They are currently one of the desired materials for advanced technologies. Two types of detectors were developed in this work, carbon nanotube-based (D1) and without nanotubebased (D2) detectors. Various configuration and arrangement for each type of detector were investigated to determine the one with the highest detection measurement and stability of frequency stability of detection system. It was found that 20 turn-coils coil placed at its centre gives the maximum detection of induction voltage, 39.61 mV. However, the 20 turn-coils with CNTs which gives 36.50 mV is the preferred EM detectors due to the stability in frequency of the detection system.

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“…It can lead to the determination of resonance in the detector to give the accurate measurements of the incoming electromagnetic wave [3], [8]. In this work, we choosed which detectors gave the most suitable reading of the frequency obtained at the oscilloscope.…”

Section: Resultsmentioning

confidence: 99%

“…Characterisation and detection of the reservoir using SBL are based on the electrical conductivity consisted by all geological media. The principle of differences in of the different conductivity geological media is utilised in this technology [1], [3]. Besides its advantage in segregating a resistivity in a non-conductive layer and conductive formation beneath the sea floor, electromagnetic method has a robustness characteristic against bad operating condition such high temperature and high pressure [4].…”

Section: Introductionmentioning

confidence: 99%

Utilization Of Carbon Nanotubes In Electromagnetic Wave Detectors

Zakariah

¹

,

Puspitasari

²

2017

JMEST

1

0

View full text Add to dashboard Cite

Direct detection of hydrocarbon by an active source using electromagnetic (EM) energy termed seabed logging (SBL) has shown very promising results. However, currently available electromagnetic wave technology has a number of challenges include sensitivity and frequency matching. This paper presents development of the carbon nanotubes (CNTs) as electromagnetic wave detector due to outstanding properties of carbon nanotubes. They are currently one of the desired materials for advanced technologies. Two types of detectors were developed in this work, carbon nanotube-based (D1) and without nanotubebased (D2) detectors. Various configuration and arrangement for each type of detector were investigated to determine the one with the highest detection measurement and stability of frequency stability of detection system. It was found that 20 turn-coils coil placed at its centre gives the maximum detection of induction voltage, 39.61 mV. However, the 20 turn-coils with CNTs which gives 36.50 mV is the preferred EM detectors due to the stability in frequency of the detection system.

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“…Seabed logging (SBL) is an application of controlled source electromagnetic (CSEM) sounding which was introduced in 2002 by Eidesmo et al and Ellingsrud et al The SBL technique, introduced as a tool for hydrocarbon exploration, is particularly sensitive to thin resistive layers buried within the subsurface, and can also be used in shallow waters (Johnstad et al, 2005). The main idea consists in towing a horizontal electric dipole (HED) over a line or grid of electromagnetic receivers lying on the seabed in order to probe the subsurface.…”

Section: Introductionmentioning

confidence: 99%

On the Removal of MT Signals from SBL Data

Ryhove¹,

Maaø²

2008

70th EAGE Conference and Exhibition Incorporating SPE EUROPEC 2008

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When performing a seabed logging (SBL) survey during a period of high magnetotelluric (MT) activity, it is not uncommon for MT signals-due to their highly variable and nonstationary nature-to significantly reduce the quality of SBL data. In the most dramatic instances, this can create the need for retowing some SBL lines at a high additional cost. We propose and describe a simple method to partially remove MT signals that may be superimposed to SBL data acquired during periods of high MT activity, and subsequently illustrate the method's performance with a real data example.

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Seabed Logging On The North Sea Troll Field

Cited by 11 publications

References 0 publications

Utilization Of Carbon Nanotubes In Electromagnetic Wave Detectors

Utilization Of Carbon Nanotubes In Electromagnetic Wave Detectors

Utilization Of Carbon Nanotubes In Electromagnetic Wave Detectors

On the Removal of MT Signals from SBL Data

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