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Nuclear magnetic resonance (NMR) logging

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Proceedings Papers

Paper presented at the SPE Middle East Oil & Gas Show and Conference, November 28–December 1, 2021
Paper Number: SPE-204875-MS
... predicted the pore structure dredged by fractures to improve the characterization of tight sandstone reservoirs. Generally, nuclear magnetic resonance (NMR) logging is an effective method to evaluate formation pore structure. However, it cannot be well used in fractured reservoirs because the NMR T 2...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 24–26, 2017
Paper Number: URTEC-2663389-MS
... in the shale gas reservoir. Thus in this paper, we used NMR log data to get different pore size distribution, and find the T2 cutoff for bound fluid volume. Theory URTeC 2663389 2 Nuclear magnetic resonance (NMR) is a physical phenomenon created by interaction between hydrogen proton and magnetic field (Coates...
Journal Articles
J Can Pet Technol 52 (04): 306–314.
Paper Number: SPE-167255-PA
Published: 04 July 2013
...-Gas-Sand Permeability Estimation From Nuclear-Magnetic-Resonance (NMR) Logs Based on the Hydraulic- Flow-Unit (HFU) Approach Liang Xiao and Chang-chun Zou, China University of Geosciences and School of Geophysics and Information Technology, Beijing, and Ministry of Education; Zhi-qiang Mao, State Key...
Proceedings Papers

Paper presented at the SPE Middle East Unconventional Gas Conference and Exhibition, January 31–February 2, 2011
Paper Number: SPE-140798-MS
... that we pursue. NMR logs have the advantage in this aspect. From NMR logs, two classical models are proposed for permeability estimation. With the introduction of nuclear magnetic resonance technology to the well logging industry, two models, known as SDR and Timur-Coates model ( Kenyon et al. 1988...
Proceedings Papers

Paper presented at the SPWLA 61st Annual Logging Symposium, June 24–July 29, 2020
Paper Number: SPWLA-5047
... ABSTRACT A novel interpretation workflow was developed using an automated unsupervised learning algorithm on Nuclear Magnetic Resonance (NMR) T 1 – T 2 log data to quantify fluid filled porosity and saturation, producible oil volumes, and to characterize matrix pore sizes and formation...
Proceedings Papers

Paper presented at the SPWLA 59th Annual Logging Symposium, June 2–6, 2018
Paper Number: SPWLA-2018-GGGG
... ABSTRACT Operators have embraced the use of nuclear magnetic resonance (NMR) well-logging measurements to evaluate the hydrocarbon-producing potential of unconventional reservoirs such as the tight-oil Bakken Petroleum System (BPS) in North Dakota. With the use of NMR logging...
Proceedings Papers

Paper presented at the SPE Middle East Oil and Gas Show and Conference, March 11–14, 2007
Paper Number: SPE-105605-MS
... was presented. Write Librarian, SPE, P.O. Box 833836, Richardson, TX 75083-3836, U.S.A., fax 01-972-952-9435. Abstract Over the past decade, results from Nuclear Magnetic Resonance (NMR), logs have added significant value to petrophysical analysis by providing total, free-fluid and bound-fluid porosities...
Proceedings Papers

Paper presented at the SPE Middle East Oil Show, March 17–20, 2001
Paper Number: SPE-68112-MS
... Abstract Nuclear Magnetic Resonance (NMR) logging provides a wealth of information to assist in the evaluation of a formation. NMR logs respond to the fluids in the pore space, and can be used to estimate lithology-independent values of effective porosity, pore-size distribution, bound...
Proceedings Papers

Paper presented at the SPE Russian Petroleum Technology Conference and Exhibition, October 24–26, 2016
Paper Number: SPE-182099-MS
... of these processes are time-consuming, consequently a technique to evaluate in-situ wettability is desired. The in-situ wettability of rocks from Nuclear Magnetic Resonance (NMR) log is a representative of the entire interval at the reservoir condition. A derived spin-lattice function from the fundamental NMR...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 6–9, 1996
Paper Number: SPE-36522-MS
... nuclear magnetic resonance W) logging has until now been limited to measurements of capillary bound water and of free fluids, the sum of which is considered the MTcctive porosity of rock, Clay-bound water and fluids trapped in micropores generally exhibit NMR relaxation times too fast to be detected...
Proceedings Papers

Paper presented at the SPWLA 60th Annual Logging Symposium, June 15–19, 2019
Paper Number: SPWLA-2019-AAA
... ABSTRACT Nuclear Magnetic Resonance (NMR) logs are widely used to ascertain in-situ rock and fluid properties. The vertical resolution of the measurements is mainly controlled by the antenna length, logging speed, signal-to-noise ratio (SNR) and mud/formation electrical conductivity...
Proceedings Papers

Paper presented at the SPE Western Regional/AAPG Pacific Section Joint Meeting, May 20–22, 2002
Paper Number: SPE-76717-MS
... evaluation problems. Nuclear Magnetic Resonance Nuclear magnetic resonance (NMR) logging is a complex and innovative new technology, but it is easy to understand. In essence, NMR logging works by forcing hydrogen nuclei of formation fluids into a spin, and then monitoring the rate at which they recover...
Proceedings Papers

Paper presented at the SPE Middle East Oil & Gas Show and Conference, March 8–11, 2015
Paper Number: SPE-172777-MS
... and nuclear magnetic resonance (NMR) logs leads to improved carbonate reservoir evaluation. Dielectric and NMR logs have similar depths of investigation, both probing the flushed zone. It is difficult to distinguish bound-water from heavy oil in rocks from NMR tools alone. The addition of accurate water...
Proceedings Papers

Paper presented at the Offshore Mediterranean Conference and Exhibition, March 23–25, 2011
Paper Number: OMC-2011-138
... like NMR or a combination of NMR and conventional open hole logs, as well as developing new interpretation methodologies are essential for improved reservoir characterization. Nuclear magnetic resonance (NMR) logs differ from conventional neutron, density, sonic and resistivity logs because the NMR...
Proceedings Papers

Paper presented at the Kuwait International Petroleum Conference and Exhibition, December 14–16, 2009
Paper Number: SPE-126408-MS
... parameters. Classical SDR model and Tim-Coates model from nuclear magnetic resonance (NMR) log data also lost their advantage. In this condition, 21 core samples were chosen to run mercury-injection and NMR log experiment simultaneously, whose porosity ranged from 2.7% to 16.1% and permeability ranged from...
Proceedings Papers

Paper presented at the EUROPEC/EAGE Conference and Exhibition, June 8–11, 2009
Paper Number: SPE-121161-MS
... like NMR or a combination of NMR and conventional open hole logs, as well as developing new interpretation methodologies are essential for improved reservoir characterization. Nuclear magnetic resonance (NMR) logs differ from conventional neutron, density, sonic and resistivity logs because the NMR...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 1–4, 2000
Paper Number: SPE-63212-MS
... Abstract Nuclear Magnetic Resonance (NMR) Logging has gained widespread acceptance over the past decade. Those using NMR data need assurance regarding the quality of the data and the interpreted product. This is particularly true as NMR replaces other logging devices and is of paramount...
Proceedings Papers

Paper presented at the SPWLA Middle East Regional Symposium, April 15–19, 2007
Paper Number: SPWLA-MERS-2007-D
... nuclear magnetic resonance (NMR) logs to quantify the tar-filled pore volume and determine the presence, if any, of liquid hydrocarbons coexisting in the pore space. We also demonstrate the use of 3D-NMR methods to further characterize the nature of the fluids in the pore space. Extensive core data...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 22–24, 2019
Paper Number: URTEC-2019-19-MS
... does not necessarily reflect any position of URTeC. Any reproduction, distribution, or storage of any part of this paper by anyone other than the author without the written consent of URTeC is prohibited. Abstract Nuclear Magnetic Resonance (NMR) logging is a powerful formation evaluation technology...
Proceedings Papers

Paper presented at the SPE Western Regional Meeting, March 24–26, 2009
Paper Number: SPE-118788-MS
... logs is essential for improved reservoir characterization. Nuclear magnetic resonance (NMR) logs differ from conventional neutron, density, sonic and resistivity logs because the NMR measurements provide mainly lithology independent detailed porosity and offer a good evaluation of the hydrocarbon...

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