... mineral complex reservoir brine sciencedirect spectra interface relaxation time source rock spontaneous imbibition dissolution shale gas saturation profile natural gas science imbibe fracture public information URTeC: 3719323 NMR Measured Dissolution of Source Rock During Brine...

... instruments. However, higher field instruments present several distinct advantages including faster scan times for a given signal to noise ratio (SNR), and superior detection of short relaxation elements due to their shift to longer relaxation times. For these reasons, higher field instruments have become...

... beneficial, technically and financially. Inversion recovery-CPMG (IR-CPMG) NMR pulse sequence is used to simultaneously measure T1 and T2 relaxation times on rock core plugs, crushed core plugs to PDC bit size and PDC cuttings from similar depths. Data acquisition is done on a 20 MHz NMR spectrometer...

... recovery shale oil structural geology relaxation rate upstream oil & gas variation poro-fluid mode pore size distribution relaxation time nmr petrophysical pore multimodal porosity application saturation relaxation relaxation effect cluster association complex reservoir fluid dynamics...

... mechanism log analysis Brine Pore Fluid relaxation correlation time kausik porosity shale formation frequency organic matter investigation kerogen magnetic resonance bulk n-dodecane relaxation time core sample NMR map research study URTeC: 203 A High Frequency NMR Investigation of Eagle...

... quantity after fluid extraction with no shift in relaxation time. The results of all the samples are displayed in a bar graph in Figure 2B, where a significant decrease is observed in the measured concentration across all samples. During the extraction process, we expect to remove bitumen, along with some...

... log analysis water saturation well logging shale Upstream Oil & Gas relaxation distribution inversion interpretation decane interpretation method time constant time point regularization relaxation time unconventional reservoir quantification inversion parameter saturation...

... salinity lowers HVFR’s viscosity, increases proppant settling velocity, and lessens the fluid’s proppant-carrying efficiency. Although in fresh water linear gel showed similar viscosity measurements with HVFR-A, the HVFR-A recorded a lower proppant settling rate because HVFR-A has a higher relaxation time...

... sample relaxation time spaced cpmg sequence sequence core sample CPMG sequence URTeC: 394 Accurate Pore Size Measurement Via NMR On Unconventionals Draga Veselinovic*1, Michael Dick1, Derrick Green1; 1. Green Imaging Technologies Inc. Copyright 2019, Unconventional Resources Technology Conference...

... complex reservoir Helium porosity Upstream Oil & Gas total porosity porosity SEM relaxation time porosimetry fraction characterization nitrogen adsorption NMR pore size distribution organic material picopore procedure saturation agreement URTeC: 2898355 Quantifying Nanoporosity...

... values are routinely higher by one order of magnitude. The difference may be caused by data acquisition, data processing, enhanced fluid relaxation, magnetic field inhomogeneities, or some combination thereof. The project provides a proof-of-concept that T 2 relaxation times can be measured...

... fracturing fluid normal stress difference elasticity HVFR gpt proppant concentration viscosity friction reducer proppant transport Technology Conference relaxation time sand transport capacity fracture shear rate URTeC: 2873723 Can Friction Reducers Transport Sand During Fracturing...

... sand to determine the effect of a variety of different components on the permeability. NMR logs previously have been used to obtain a continuous permeability profile along a wellbore; however, it has been found that each transform used to calculate permeability from the NMR relaxation time log...

... presentation well logging viscosity bitumen user manual higher ratio relaxation time unconventional resource technology conference different temperature NMR porosity green imaging technology shale Evaluate Shale shale sample correlation map URTeC: 2671166 NMR at Different Temperatures...

... complex reservoir pore Upstream Oil & Gas mechanism shale gas Kleinberg pore wall paramagnetic ion diffusion relaxation time NMR measurement relaxation nucleus interaction porosity hydrocarbon gradient small pore dipolar coupling shallow marine mudstone pore size...

... carbon atom hydrocarbon bearing shale relaxation time Eagle Ford NMR chain length characterization URTeC: 1917686 Characterization of Free and Bound Fluids in Hydrocarbon Bearing Shales Using NMR and Py-GC-MS Jameson Gips*, Hugh Daigle, Mukul Sharma, University of Texas at Austin Copyright 2014...

... allows for improved resolution of solid-phase protons. LF-NMR measurements of T1 and T2 relaxation time distributions were carried out on raw oil shale samples from the Eocene Green River Formation and pyrolyzed samples of these shales processed by hydrous pyrolysis and techniques meant to mimic surface...

... solids. Standard T1 and T2 relaxation distributions were determined and two dimensional T1-T2 correlation measurements were performed on the Woodford Shale cores. The T1-T2 correlations facilitate resolution of organic phases in the system. The changes observed in NMR- relaxation times correspond...

.... Correlation models of relaxation time against saturation are provided. Water and gas are considered as displacement fluids for leak-off and clean-up, respectively. The saturation profiles of water leak-off for both capillary equilibrium and relaxation cases are compared, revealing a region of saturation...