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Proceedings Papers

Paper presented at the 2018 SEG International Exposition and Annual Meeting, October 14–19, 2018
Paper Number: SEG-2018-2998382
... ABSTRACT Helicopter ZTEM natural field EM and VTEM helicopter time-domain EM system results are compared over the McArthur River Project in northwestern Saskatchewan. The ZTEM survey data were complicated by the fact that they were obtained in low signal winter conditions and with a major...
Proceedings Papers

Paper presented at the 2014 SEG Annual Meeting, October 26–31, 2014
Paper Number: SEG-2014-1582
... Summary ModEM is a modular system of computer codes for inversion of EM geophysical data developed over the past decade at Oregon State University. A stable version of the code tailored to inversion of 3D magnetotelluric data has been made freely available for academic research...
Proceedings Papers

Paper presented at the OTC Arctic Technology Conference, February 7–9, 2011
Paper Number: OTC-22112-MS
... bundle technology conference pipeline ice platform completion drilling rig drake 76 drillstem testing heating rig upstream oil & gas vertical connector offshore technology conference pipeline system connection system flowline OTC 22112 Well, You ve Drilled em. Now Can You Produce...
Proceedings Papers

Paper presented at the 2005 SEG Annual Meeting, November 6–11, 2005
Paper Number: SEG-2005-0595
... Summary We have created 3D animations of EM diffusion in a conductive earth for a helicopter-borne electromagnetic (HEM) system. To accomplish this, the EM field solved at the location of the HEM system is continued back into the earth. Introducing the time factor and displaying the field...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3581167
... fracturing operations. The currently widely used microseismic monitoring technology can only locate microseismic events caused by hydraulic fracturing, but cannot mapping fracturing fluid distribution. We applied controlled source EM method to monitor hydraulic fracturing of a horizontal well in Changning...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3584660
... Active-source and natural-field EM data differ in their sensitivity to subsurface conductivity structures. Generally, the former offer higher spatial resolution and have a greater sensitivity to near-surface conductivities. The latter are more sensitive to broader structures and, for MT data...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3594941
... A ZTEM natural field helicopter EM, magnetic and radiometric survey was flown over the Zamora epithermal gold-silver projects in southeastern Ecuador. It also overflew the well known Fruta del Norte Au-Ag deposit, which was used as a guide for further exploration on the adjacent Rio Zarza...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3581079
.... Ef cient ground EM acquisition using irregular sparse stations: A compressive sensing approach Mengli Zhang* and Yaoguo Li Center for Gravity, Electrical, and Magnetic Studies, Department of Geophysics, Colorado School of Mines SUMMARY A major challenge in ground electromagnetic geophysical sur...
Proceedings Papers

Paper presented at the SPE Europec featured at 82nd EAGE Conference and Exhibition, October 18–21, 2021
Paper Number: SPE-205218-MS
... a proactive approach while drilling to indicate approaching current oil/water contact and geo-stop drilling to give optimal standoff between the bit and the detected water contact (COWC). Recent development of electromagnetic (EM) look-ahead resistivity technology was considered and first implemented...
Proceedings Papers

Paper presented at the SPE Russian Petroleum Technology Conference, October 12–15, 2021
Paper Number: SPE-206651-MS
..., is briefly described. The methodologies were developed during the execution of a hydraulic fracturing project at JK 29 reservoirs of the Tyumen Suite of Em-Yogovskoye field, after which they were applied in a number of other projects for the development of hard-to-recover hydrocarbon reserves in West...
Proceedings Papers

Paper presented at the SPE Offshore Europe Conference & Exhibition, September 7–10, 2021
Paper Number: SPE-205404-MS
... electromagnetism-based inspection tools, where only circumferential average metal thickness is measured, this research investigates the artificial intelligence (AI)-assisted interpretation of a unique arrangement of electromagnetic (EM) sensors. This facilitates the development of a novel solution for through...
Proceedings Papers

Paper presented at the SPE International Oilfield Corrosion Conference and Exhibition, June 16–17, 2021
Paper Number: SPE-205050-MS
... Abstract Historically, only total metal thickness measurement was possible using frequency domain electromagnetic (EM) logging tools. With advances in technology, it is critical to develop a frequency domain alternative answer using a multi-frequency array EM pipe inspection tool to accurately...
Proceedings Papers

Paper presented at the SPE Asia Pacific Oil & Gas Conference and Exhibition, November 17–19, 2020
Paper Number: SPE-202265-MS
... the signal to noise ratio and depth of detection of EM measurements. To mitigate those effects, a shorter spacing and appropriate frequencies were chosen to improve the signal-to-noise ratio. The position of the transmitter within the BHA is critical to optimize the distance of detection ahead of the bit...
Proceedings Papers

Paper presented at the Abu Dhabi International Petroleum Exhibition & Conference, November 9–12, 2020
Paper Number: SPE-202725-MS
... petroleum exhibition & conference application em technology upstream oil & gas aperture pec technology evaluation society of petroleum engineers casing design casing and cementing well integrity resolution corrosion management thickness eddy current abu dhabi interpretation well...
Proceedings Papers

Paper presented at the Abu Dhabi International Petroleum Exhibition & Conference, November 9–12, 2020
Paper Number: SPE-202606-MS
... Abstract The use of one-dimensional (1D) electromagnetic (EM) inversion for well placement, reservoir mapping, and planning of multi-lateral wells is now quite common, but it is limited because it assumes continuity of resistivity in all directions except above and below the wellbore. Where...
Proceedings Papers

Paper presented at the SPE Norway Subsurface Conference, November 2–3, 2020
Paper Number: SPE-200722-MS
... measurements, deployed along with azimuthal ultra-deep electro-magnetic (EM) reservoir mapping technology. All to provide a complete reservoir and geological description of the Cretaceous sandstones deposited in turbidite fans with moderate to good quality. The utilization of this sourceless LWD technology...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3427004
... operations require developing and improving subsurface monitoring technologies for tracking CO2 movement, evaluating storage integrity and early detection of CO2 leak from storage. In this study, we present a novel, fully-integrated Electromagnetic (EM) and seismic acquisition system designed to efficiently...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3427026
... optimization problem surface mesh artificial intelligence farquharson exploration geophysicist 10 true model athabasca basin db dt inversion geometry inversion seg international exposition time-domain em data xushan lu discretize metals & mining node geophysics conductivity data misfit...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3426481
... international exposition coastal environment structural geology orientation exploration geophysicist 10 configuration reservoir characterization inline profile geophysics conductivity structure lateral boundary upstream oil & gas instrument frequency-domain em response finite element...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3427957
... involve injecting alternating electric current into the Earth through long transmitter dipoles, and making measurements of the Earth’s response at an array of EM receivers. Historically, CSAMT data have been interpreted using readily available MT modeling algorithms, but this means using only the data...

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