Porosity of Drill-Cuttings Using Multinuclear <sup>19</sup>F and <sup>1</sup>H NMR Measurements

Fellah, Kamilla; Utsuzawa, Shin; Song, Yi‐Qiao; Kausik, Ravinath

doi:10.1021/acs.energyfuels.8b01350

Cited by 15 publications

(5 citation statements)

References 11 publications

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“…Some recent work has been performed in source rock cuttings. Multiple studies combined 1 H and 19 F NMR measurements of cuttings saturated with oil or water and surrounded by fluorinated fluid to determine the porosity of the cuttings. , Another examined the kerogen content using diffuse reflectance infrared Fourier transform spectroscopy; however, this method only provides data on the organic matter. In this study, we present a 1 H NMR-based method to measure rock porosity and densities of the whole rock using drill cuttings.…”

Section: Introductionmentioning

confidence: 99%

Low-Field Nuclear Magnetic Resonance Methodology for Analysis of Drill Cuttings from Unconventional Tight Reservoirs

et al. 2020

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A nuclear magnetic resonance (NMR)-based method was developed to quickly and accurately determine porosities and densities of tight reservoir rocks from drill cuttings. The method combines low-field NMR and two mass measurements, one in the air and one in a fluid, to determine rock porosity, grain density, and bulk density. The method provides an inexpensive approach to deliver continuous data for evaluation of a drilled well and is especially useful for unconventional reservoirs for evaluating both vertical and horizontal sections of a well.

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Section: Introductionmentioning

confidence: 99%

Low-Field Nuclear Magnetic Resonance Methodology for Analysis of Drill Cuttings from Unconventional Tight Reservoirs

et al. 2020

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“…They also suggested a method of estimating the total organic carbon (TOC) content of shales which is a useful parameter for the evaluation of shale reservoirs. [30] presented NMR porosity of irregular shaped drill cuttings. They addressed the challenges associated with estimating porosity from drill cuttings by including a higher frequency multinuclear NMR method.…”

Section: Porositymentioning

confidence: 99%

A Review of the Application of Nuclear Magnetic Resonance in Petroleum Industry

Olaide¹,

Olugbenga²,

Abimbola³

2020

IJG

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In the petroleum industry, Nuclear Magnetic Resonance (NMR) technology has been applied to numerous applications in the laboratory and for wireline logging, which provides vital information about the petrophysical properties of the reservoirs. The primary purpose of this paper is to evaluate the various applications of the Nuclear Magnetic Resonance technology presently used in conventional and unconventional reservoir systems for formation evaluation purposes in the petroleum industry. Additionally, to better comprehend the type of analysis and information that could be derived from the NMR measurement, a detailed literature review was conducted on the history, theory, and principles of nuclear magnetic resonance. This paper also discussed some standard methods in which NMR technology has been used in the oil and gas industry to estimate reservoir properties such as porosity, permeability, wettability, irreducible water saturation, and irreducible oil saturation. Likewise, it reveals that the borehole and laboratory applications of the NMR measurement have been utilized in both conventional and unconventional reservoir systems to quantify critical parameters like pore size distribution, porosity, and permeability. The application of NMR measurement also gives a better understanding of the interaction between fluids in the reservoirs and the rock properties. This review establishes that the exploration and production of oil in the industry have benefited from NMR technology by effectively enhancing the evaluation of formation and fluid properties in the reservoir.

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“…In addition, Ortega and Aguilera [8] defined the minimum cutting size of tight sandstone that can be used for porosity measurement to be >1 mm in diameter. For shale, Fellah et al [9] found that shale cuttings with 1-5 mm in diameter provide accurate porosity. For coal, Chang et al [10] found that the porosity and PSD of coal can be found using coal cuttings with diameter > 1 mm.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Grain Size Effects on Porosity, Permeability, and Pore Size Distribution of Carbonate Rocks Using Nuclear Magnetic Resonance Technology

Wang,

Chang,

Wang

et al. 2024

Energies

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Core analysis is an accurate and direct method for finding the physical properties of oil and natural gas reservoirs. However, in some cases coring is time consuming and difficult, and only cuttings with the drilling fluid can be obtained. It is important to determine whether cuttings can adequately represent formation properties such as porosity, permeability, and pore size distribution (PSD). In this study, seven limestone samples with different sizes were selected (Cubes: 4 × 4 × 4 cm, 4 × 4 × 2 cm, 4 × 2 × 2 cm and 2 × 2 × 2 cm, Core: diameter of 2.5 cm and a length of 5 cm, Cuttings: 1–1.7 mm and 4.7–6.75 mm in diameter), and low-field nuclear magnetic resonance (NMR) measurements were performed on these samples to obtain porosity, PSD, and permeability. The results showed that the porosity of cubes and cuttings with different sizes are consistent with cores, which is about 1%. Whereas the PSDs and permeabilities of the two cutting samples (less than in size 6.75 mm) differ significantly within cores. It is suggested that interparticle voids and mechanical pulverization during sample preparation have a negligible effect on porosity and a larger effect on PSD and permeability. Combined with factors such as wellbore collapse and mud contamination suffered in the field, it is not recommended to use cuttings with a particle size of less than 6.75 mm to characterize actual extra-low porosity and extra-low permeability formation properties.

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Porosity of Drill-Cuttings Using Multinuclear ¹⁹F and ¹H NMR Measurements

Cited by 15 publications

References 11 publications

Low-Field Nuclear Magnetic Resonance Methodology for Analysis of Drill Cuttings from Unconventional Tight Reservoirs

Low-Field Nuclear Magnetic Resonance Methodology for Analysis of Drill Cuttings from Unconventional Tight Reservoirs

A Review of the Application of Nuclear Magnetic Resonance in Petroleum Industry

Evaluation of Grain Size Effects on Porosity, Permeability, and Pore Size Distribution of Carbonate Rocks Using Nuclear Magnetic Resonance Technology

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Porosity of Drill-Cuttings Using Multinuclear 19F and 1H NMR Measurements

Cited by 15 publications

References 11 publications

Low-Field Nuclear Magnetic Resonance Methodology for Analysis of Drill Cuttings from Unconventional Tight Reservoirs

Low-Field Nuclear Magnetic Resonance Methodology for Analysis of Drill Cuttings from Unconventional Tight Reservoirs

A Review of the Application of Nuclear Magnetic Resonance in Petroleum Industry

Evaluation of Grain Size Effects on Porosity, Permeability, and Pore Size Distribution of Carbonate Rocks Using Nuclear Magnetic Resonance Technology

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Product

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Porosity of Drill-Cuttings Using Multinuclear ¹⁹F and ¹H NMR Measurements