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Keywords: NMR
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Proceedings Papers

Paper presented at the SPWLA 63rd Annual Logging Symposium, June 11–15, 2022
Paper Number: SPWLA-2022-0062
... Abstract Drill cuttings are ubiquitous in oil and gas well drilling operations, but beyond mud logging, cuttings are often discarded without analysis. Recently, there has been an up-tick in employing nuclear magnetic resonance (NMR) rock core analysis techniques to cuttings to unlock more...
Proceedings Papers

Paper presented at the SPWLA 61st Annual Logging Symposium, June 24–July 29, 2020
Paper Number: SPWLA-5094
... the cores, high-resolution micro-CT test, NMR measurement both at 100% water saturation and at bound water saturation are first conducted. Then the resistivities at various water saturations are measured by gas displacement with porous plates. The microporosity, vug porosity, fracture porosity and bounded...
Proceedings Papers

Paper presented at the SPWLA 61st Annual Logging Symposium, June 24–July 29, 2020
Paper Number: SPWLA-5047
...ABSTRACT 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...
Proceedings Papers

Paper presented at the SPWLA 61st Annual Logging Symposium, June 24–July 29, 2020
Paper Number: SPWLA-5048
... developed an experimental procedure to use nuclear magnetic resonance (NMR) to measure the density of hydrocarbon gases in nano-pore dominated gas shale reservoirs at reservoir temperature and pressure, and also quantify the volume of gas that can be packed in such rock systems under these conditions...
Proceedings Papers

Paper presented at the SPWLA 60th Annual Logging Symposium, June 15–19, 2019
Paper Number: SPWLA-2019-B
... and distribution, pore aspect ratio, wettability and fluid viscosity. Hydrogen ( 1 H) Nuclear magnetic resonance (NMR) is a technique that can be used to quantitatively describe some of these important parameters. Here we report on the design, construction and performance of a novel NMR-compatible rock core holder...
Proceedings Papers

Paper presented at the SPWLA 60th Annual Logging Symposium, June 15–19, 2019
Paper Number: SPWLA-2019-D
... and mineralogy, and critically, how it can be cross-matched with NMR T1, T2 and D distributions measured in the same rocks at the same saturations. These are the initial steps in building up a comprehensive database of measurements for pore volume- and saturation- controlled dielectric permittivity and effective...
Proceedings Papers

Paper presented at the SPWLA 60th Annual Logging Symposium, June 15–19, 2019
Paper Number: SPWLA-2019-V
...SPWLA 60th Annual Logging Symposium, June 17-19, 2019 DOI: 10.30632/T60ALS-2019_V 1 FEASIBILITY STUDY OF DERIVING WATER SATURATION FROM LWD NMR TRANSVERSE RELAXATION TIME IN TWO SILICICLASTIC RESERVOIRS IN CHINA Xin Zhou, Chanh Cao Minh, Schlumberger, Yunjiang Cui, Xinlei,Shi , CNOOC, Shim Yen Han...
Proceedings Papers

Paper presented at the SPWLA 60th Annual Logging Symposium, June 15–19, 2019
Paper Number: SPWLA-2019-BBBBB
.... In contrast, drill cuttings are available for all the wells and thus can provide reservoir data throughout all the phases of the field development. A nuclear magnetic resonance (NMR) based method was developed to accurately determine petrophysical properties including porosity, bulk density, and matrix...
Proceedings Papers

Paper presented at the SPWLA 60th Annual Logging Symposium, June 15–19, 2019
Paper Number: SPWLA-2019-LLLL
... resonance (NMR) logging is known to provide an underestimated permeability, poor reliable oil typing and thus poor oil saturation and viscosity determinations, especially when the evaluation is based only on the spectra of transverse magnetic relaxation times (T2) (one-dimension NMR) [Romero et al., 2009...
Proceedings Papers

Paper presented at the SPWLA 60th Annual Logging Symposium, June 15–19, 2019
Paper Number: SPWLA-2019-RRR
... and productivity predictions that could ultimately impact overall development planning. An evaluation workflow was devised to directly quantify bitumen and provide accurate volumetric analysis. The methodology is based on the integration of the triplecombo, nuclear magnetic resonance (NMR), and pulsed neutron...
Proceedings Papers

Paper presented at the SPWLA 59th Annual Logging Symposium, June 2–6, 2018
Paper Number: SPWLA-2018-HH
... of Petrophysicists and Well Log Analysts (SPWLA) and the submitting authors. This paper was prepared for presentation at the SPWLA 59th Annual Logging Symposium held in London, UK, June 2-6, 2018. ABSTRACT Nuclear magnetic resonance (NMR) logging has been frequently used in situ to detect and classify pore size...
Proceedings Papers

Paper presented at the SPWLA 59th Annual Logging Symposium, June 2–6, 2018
Paper Number: SPWLA-2018-GGG
... ABSTRACT Bioclastic deposits constitute important carbonate Pre-salt reservoirs, sustaining for decades a significant oil production from offshore Brazilian fields. Nuclear magnetic resonance (NMR) logs show highly homogeneous reservoirs, contrasting with formation tests and production logging...
Proceedings Papers

Paper presented at the SPWLA 59th Annual Logging Symposium, June 2–6, 2018
Paper Number: SPWLA-2018-JJJ
... Reservoir Characterization Fluid Dynamics spwla 59 machine learning Upstream Oil & Gas directional permeability model flow in porous media Imaging Artificial Intelligence Simulation NMR coupling carbonate rock sandstone diffusional coupling carbonate permeability model...
Proceedings Papers

Paper presented at the SPWLA 59th Annual Logging Symposium, June 2–6, 2018
Paper Number: SPWLA-2018-ZZZ
... ABSTRACT Achieving high vertical and spectral resolution of nuclear magnetic resonance (NMR) logging involves much more than antenna aperture, stacking, and logging speed. A systematic approach is necessary to optimize hardware, the data acquisition sequence, and processing algorithms...
Proceedings Papers

Paper presented at the SPWLA 59th Annual Logging Symposium, June 2–6, 2018
Paper Number: SPWLA-2018-YYY
... ABSTRACT This paper compares production results and the evaluation of conventional logs versus advanced logs as nuclear magnetic resonance (NMR) in a mature field; discusses vertical reservoir heterogeneity and different flow units in apparent homogeneous reservoirs; and identifies bypass...
Proceedings Papers

Paper presented at the SPWLA 58th Annual Logging Symposium, June 17–21, 2017
Paper Number: SPWLA-2017-AAA
...SPWLA 58th Annual Logging Symposium, June 17-21, 2017 1 OIL-SOLUBLE CONTRAST AGENTS FOR NMR Boyang Zhang and Hugh Daigle, University of Texas at Austin Copyright 2017, held jointly by the Society of Petrophysicists and Well Log Analysts (SPWLA) and the submitting authors. This paper was prepared...
Proceedings Papers

Paper presented at the SPWLA 58th Annual Logging Symposium, June 17–21, 2017
Paper Number: SPWLA-2017-BBB
...SPWLA 58th Annual Logging Symposium, June 17-21, 2017 1 TOWARD ACCURATE RESERVOIR CHARACTERIZATION FROM NEW-GENERATION NMR LOGGING Vivek Anand1, Boqin Sun2, Laurent Mosse1, Albina Mutina1, Tianmin Jiang1, Ronald L Brown2, Luisa Crousse2 1Schlumberger, 2Chevron U.S.A. Inc Copyright 2017, held...
Proceedings Papers

Paper presented at the SPWLA 58th Annual Logging Symposium, June 17–21, 2017
Paper Number: SPWLA-2017-TTTT
... of reservoir lithology, fluid type, porosity and permeability. The stacked reservoir systems have varying degrees of clastic and carbonate mixtures and are saturated with differing hydrocarbon types. In this complex environment Logging-While-Drilling (LWD) Nuclear Magnetic Resonance (NMR) measurements were...
Proceedings Papers

Paper presented at the SPWLA 58th Annual Logging Symposium, June 17–21, 2017
Paper Number: SPWLA-2017-RR
... ABSTRACT This paper presents a new methodology for performing a cutoff analysis that uses a T 1 /T 2 ratio distribution obtained from two-dimensional (2D) nuclear magnetic resonance (NMR) T 1 and T 2 measurements. The ability to classify pores and their effect on permeability is noticeably...
Proceedings Papers

Paper presented at the SPWLA 58th Annual Logging Symposium, June 17–21, 2017
Paper Number: SPWLA-2017-KKKK
...SPWLA 58th Annual Logging Symposium, June 17-21, 2017 1 INTEGRATED GAS AND OIL ZONE EVALUATION USING NMR, CONVENTIONAL, AND MUD GAS DATA A NORWEGIAN LOGGING- WHILE-DRILLING CASE HISTORY Holger Thern1, Artur Kotwicki2, Nicklas Ritzmann1, Jon Torkel Petersen1, Oliver Mohnke1 1Baker Hughes, 2AkerBP...

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