... ABSTRACT Nuclear magnetic resonance (NMR) logging technology plays an important role in oil and gas exploration and rock sample analysis. However, there is a phenomenon of superposition of multiple fluid component signals in the T 1 - T 2 map, which makes the identification...

... ABSTRACT Austin Chalk is a well-known formation in the South Texas region, targeted for the abundant hydrocarbon resources. Operators utilize advanced logging systems and core data to gain a better understanding of the petrophysical properties for the formation. Nuclear magnetic resonance (NMR...

... ABSTRACT 2D T 1 - T 2 NMR has been widely proposed as a method to determine the fluids present in unconventional source rocks. However, assignment of the components in the 2D T 1 - T 2 NMR spectra has so far been based on conceptual consideration and lacks rigorous experimental...

... the existing data published in the literature. Static Rock-Fluid interaction evaluation and high frequency NMR core measurements were acquired to evaluate the impact of minerology, clay mineral volume and speciation, on the total space available for storage. Four different core samples from shale reservoirs...

... ABSTRACT The primary objective of this study is to demonstrate the correlation between bitumen presence identified using Pyrolysis analysis in core/cuttings, and petrophysical data from NMR logs in the Jurassic Marrat Formation, Kuwait. Since the presence of bitumen in the reservoir presents...

... geologist asia government united states government geology artificial intelligence spectra doi machine learning upstream oil & gas deep learning well logging neural network nmr application university log analysis th annual logging symposium dataset resonance regularization...

... ABSTRACT We present a new method for studying permeability anisotropy and paleo-depositional cycles by combining NMR anisotropic restricted diffusion measurements and SEM images on core. In particular, the method is applied to measuring a depositional cycle from the Tethys Sea in the late...

...SPWLA 64th Annual Logging Symposium, June 10-14, 2023 DOI: 10.30632/SPWLA-2023-0098 LEARNINGS FROM IMPACT AND IMPLICATIONS OF SIGNAL-TONOISE IN NMR T1-T2 LOGGING OF UNCONVENTIONAL RESERVOIRS Olabode Ijasan, ExxonMobil Technology and Engineering Company Copyright 2023, held jointly by the Society...

...SPWLA 64th Annual Logging Symposium, June 10-14, 2023 DOI: 10.30632/SPWLA-2023-0111 THE LATEST DEVELOPMENTS OF LABORATORY NMR TECHNIQUES IN UNCONVENTIONAL SHALE CHARACTERIZATION Z. Harry Xie and Omar Reffell Core Laboratories LP Copyright 2023, held jointly by the Society of Petrophysicists...

... 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...

..., 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 water...

... machine learning log analysis reservoir characterization well logging enhanced recovery complex reservoir size distribution july 29 shale gas immobile hydrocarbon nmr core analysis upstream oil & gas porosity signature symposium unconventional reservoir retort analysis...

... 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. The experimental...

... 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...

... 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...

... well logging cutoff NMR log analysis fluid substitution porosity fluid window factor analysis water saturation workflow Symposium interpretation transverse relaxation time Upstream Oil & Gas pore structure spwla 60 NMR data reservoir cao minh permeability resistivity...

...SPWLA 60th Annual Logging Symposium, June 17-19, 2019 DOI: 10.30632/T60ALS-2019_BBBBB 1 NMR MEASUREMENT OF POROSITY AND DENSITY FROM DRILL CUTTINGS OF UNCONVENTIONAL TIGHT RESERVOIRS Stacey M. Althaus, Jin-Hong Chen, Jilin Zhang Aramco Services Company: Aramco Research Center Houston Copyright...

... 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...

... Upstream Oil & Gas well logging log analysis total porosity NMR production log tight gas reservoir TPHI porosity concentration bitumen spwla 60 application petrophysicist Symposium Petroleum Development Oman neutron tool porosity deficit reservoir evaluation spectroscopy...

... 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...