Thermodynamic properties of argon from the triple point to 300 K at pressures to 1000 atmospheres

Gosman, A. L.; McCarty, R.D.; Hust, J. G.

doi:10.6028/nbs.nsrds.27

Cited by 61 publications

(51 citation statements)

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“…(21)]. This moment analysis is shown in Fig 9 as a function of reduced argon number density ρ r ,whereρ r = ρ Ar /ρ c with ρ c ≡ 8.076 × 10 21 cm −3 [56]. Fig 9b shows an enhanced view of the perturber critical region with a critical effect in Δ(ρ Ar ) clearly apparent.…”

Section: Discussionmentioning

confidence: 91%

“…Photoabsorption spectra for each neat dopant and each neat perturber were measured to verify the absence of impurities in the spectral range of interest. The atomic perturber number densities were calculated from the Strobridge equation of state [55] with the parameters obtained from [56] for argon, [57] for krypton, and [58] for xenon. All densities and temperatures were selected to maintain a single phase system in the sample cell.…”

Section: Experiments Techniques and Theoretical Methodology 31 Expermentioning

confidence: 99%

See 1 more Smart Citation

Atomic and Molecular Low-n Rydberg States in Near Critical Point Fluids

Li¹,

Shi²,

Cherice³

et al. 2012

Advanced Aspects of Spectroscopy

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Section: Discussionmentioning

confidence: 91%

Section: Experiments Techniques and Theoretical Methodology 31 Expermentioning

confidence: 99%

Atomic and Molecular Low-n Rydberg States in Near Critical Point Fluids

Li¹,

Shi²,

Cherice³

et al. 2012

Advanced Aspects of Spectroscopy

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“…Viscosity of argon was calculated for a given pore pressure and temperature using the formulation given in Younglove & Hanley (1986). The compressibility of argon was calculated for a given temperature and pore pressure from the compressibility factor z calculated from fits from equation of state data of Gosman et al (1969). The behaviour of the gas is almost ideal up to 25 MPa, beyond which the compressibility progressively decreases.…”

Section: Methodsmentioning

confidence: 99%

Microstructural controls on the pressure-dependent permeability of Whitby mudstone

Mckernan

Mecklenburgh²,

Rutter³

et al. 2017

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A combination of permeability and ultrasonic velocity measurements allied with image analysis is used to distinguish the primary microstructural controls on effective-pressure dependent permeability. Permeabilities of cylindrical samples of Whitby Mudstone were measured using the oscillating pore pressure method at confining pressures ranging between 30-95 MPa and pore pressures ranging between 1-80 MPa. The permeability-effective pressure relationship is empirically described using a modified effective pressure law in terms of confining pressure, pore pressure and a Klinkenberg effect. Measured permeability ranges between 3×10 -21 m 2 and 2 ×10 -19 m 2 (3 and 200 nd), and decreases by ~1 order of magnitude across the applied effective pressure range. Permeability is shown to be less sensitive to changes in pore pressure than changes in confining pressure, yielding permeability effective pressure coefficients ( ) between 0.42 and 0.97. Based on a pore-conductivity model which considers the measured changes in acoustic wave velocity and pore volume with pressure, the observed loss of permeability with increasing effective pressure is attributed dominantly to the progressive closure of bedding-parallel, crack-like pores associated with grain boundaries.Despite only constituting a fraction of the total porosity, these pores form an interconnected network that significantly enhances permeability at low effective pressures.The pre-publication reference is: Mckernan, R., Mecklenburgh, J., Rutter, E. H. and Taylor Progress in understanding fluid transport properties of mudstones is currently hindered by a scarcity of published experimental data. However, the ongoing expansion of the hydrocarbon industry into low-permeability unconventional resources is driving the demand for research and development in this field. Even when hydraulic fracture treatment is used to enhance production, flow of hydrocarbons into the fractures will be controlled ultimately by the microporous, low permeability matrix. Furthermore, during reservoir production pore-fluid pressure is progressively reduced, which acts to increase the in-situ Terzaghi effective pressure (defined as overburden pressure minus pore pressure), thereby decreasing permeability. The evolution of permeability of the matrix therefore determines the prediction of long-term production, which must take into account the effects of flow regime, multiphase flow, sorption effects, permeability anisotropy and, most importantly, the pressuredependence of permeability.Laboratory measurements of permeability of intact mudstone samples performed under reservoir conditions has yielded values between 10 -22 m 2 and 10 -12 m 2 (0.1 nD and 1 D) for flow both parallel and normal to layering (Morrow et al.

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“…Temperature scale differences could also account for part of the deviations. Since the data from reference [l0] do not represent just the second virial coefficient, further comparisons with eq (la) were made by converting values from oxygen [11] and argon [12] using corre· spon ding states approach based on critical parameters as follows:…”

Section: P= Rt[p + B(t)p 2+ C(t)p3]mentioning

confidence: 99%

PVT measurements, virial coefficients, and Joule-Thomson inversion curve of fluorine

Prydz¹,

Straty²

1970

J. RES. NATL. BUR. STAN. SECT. A.

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Exp e rim ental PVT mea s urem e nts on gaseo u s and liquid Auorine from the trip le point (53 .5 K) to 300 K at press ures to about 21 MN/m2 are presented. Th e data are represente d by a trun ca ted viria l e quation in th e low-density region. Comparisons of th e seco nd virial coefficient from this equa ti on are made with publis hed data_ The PVT re lationship a long th e loui e-Tho mson inversion c urve was ob ta in ed from th e isothe rm -isoc hore re prese ntation of the high de nsity region.Key words: I soc hores; isoth e rm s; Joul e-Thom so n inv e rs ion c urve; liquid den sities a long melti ng line; PYT data; seco nd viriai coe ffi c ient; third viriai coefficient.

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Thermodynamic properties of argon from the triple point to 300 K at pressures to 1000 atmospheres

Cited by 61 publications

References 0 publications

Atomic and Molecular Low-n Rydberg States in Near Critical Point Fluids

Atomic and Molecular Low-n Rydberg States in Near Critical Point Fluids

Microstructural controls on the pressure-dependent permeability of Whitby mudstone

PVT measurements, virial coefficients, and Joule-Thomson inversion curve of fluorine

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