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Isothermal compressibility of gases

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Journal Articles
J Pet Technol 9 (01): 69–71.
Paper Number: SPE-697-G
Published: 01 January 1957
... coefficient of expansion, or "compressibility" is a complex function controlled by the physical properties of the formation and the fluids contained therein. The isothermal expansion coefficients for reservoir gases are usually quite variable, in many cases being highly-pressure sensitive. The coefficients...
Proceedings Papers

Paper presented at the Annual Technical Meeting, May 7–11, 1973
Paper Number: PETSOC-73-112
... binary mixture pseudo-reduced density reservoir simulation petroleum industry correlation coefficient benedict-webb-rubin type equation standing-katz correlation compressibility factor original data isotherm pvt measurement robinson expression natural gas compressibility factor...
Journal Articles
J Can Pet Technol 14 (04).
Paper Number: PETSOC-75-04-08
Published: 01 October 1975
...L. Mattar; G.S. Brar; K. Aziz A new correlation for the compressibility of sweet and sour natural gases ispresented. This correlation is derived from an equation of state whichadequately represents the Standing-Katz Z-Factor chart. The algebraicexpression for compressibility presented here...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 4–7, 2009
Paper Number: SPE-124971-MS
... properties of interest for oils include density, isothermal compressibility, adiabatic compressibility, modulus and velocity (similar to gases). In addition, bubblepoint pressure and solution gas-oil ratio are required. These properties can all be estimated with commonly available data such as oil API...
Proceedings Papers

Paper presented at the SPE Middle East Oil and Gas Show and Conference, March 15–18, 2009
Paper Number: SPE-120047-MS
... with the decrease in pressure due to the liberation of gases. Therefore the profile of volume and density of liquid oil are opposite to the normal trends in single-phase, constant-composition fluids. 2 SPE 120047 A direct application of the general definition of isothermal compressibility on oil below the bubble...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 24–27, 2006
Paper Number: SPE-103155-MS
... such as formation volume factor and isothermal compressibility can then be derived from fundamental relationships with density. Since the new method correlates properties with the molecular weight of the wellstream, the chemical nature of the oil (ie naphthenic, paraffinic, etc) is considered. Existing...
Journal Articles
Journal: SPE Journal
SPE J. 24 (06): 2504–2525.
Paper Number: SPE-197045-PA
Published: 05 August 2019
... adsorption phenomenon” can be observed. The negative isotherm for CH 4 absorption on an activated carbon was first reported by Vidal et al. ( 1990 ) as gas pressure approaches 200 MPa. Malbrunot et al. ( 1992 ) found that this negative phenomenon was also applicable for the adsorption of other gases...
Journal Articles
SPE Res Eval & Eng 11 (02): 246–266.
Paper Number: SPE-103155-PA
Published: 24 April 2008
... to determine saturated-and undersaturated-oil density accurately. Oil PVT properties, such as FVF and isothermal compressibility, can then be derived from fundamental relationships with density. Because the new method correlates properties with the molecular weight of the wellstream, the chemical nature...
Proceedings Papers

Paper presented at the SPE Kingdom of Saudi Arabia Annual Technical Symposium and Exhibition, April 23–26, 2018
Paper Number: SPE-192397-MS
... T c 190.89 K P r 0.11 T r 1.69 c r 1.00 Figure 4 Dimensionless compressibility for gases based on reduced pressure and temperature. Then the isothermal gas compressibility is, (11) c g = c r P Lastly, ϕ a for both isotherms...
Proceedings Papers

Paper presented at the SPE Asia Pacific Oil and Gas Conference and Exhibition, October 16–18, 2000
Paper Number: SPE-64284-MS
... for sour gases is much more difficult than that of sweet gases. Therefore, several attempts have been made to predict compressibility factor for sweet gases 2–4 . Wichert and Aziz 5 presented corrections for the presence of hydrogen sulfide and carbon dioxide for determining compressibility factor of sour...
Journal Articles
J Pet Technol 16 (04): 447–454.
Paper Number: SPE-772-PA
Published: 01 April 1964
...H.J. Ramey, Jr. Ramey Jr., H.J., Member AIME, Mobil Oil Co., Los Angeles, Calif. Abstract Conventional calculation of total system isothermal compressibility for a system containing a free gas phase involves, among other things, evaluation of the change of oil and gas formation volume factors...
Proceedings Papers

Paper presented at the The 21st U.S. Symposium on Rock Mechanics (USRMS), May 27–30, 1980
Paper Number: ARMA-80-0356
... drainage. In containment of underground nuclear explosions, factors causing crack growth must be understood so that such situations can be avoided. In both these technologies, fractures are driven by gases--compressible fluids--through permeable media. Considerable effort has gone into studying isothermal...
Proceedings Papers

Paper presented at the The 21st U.S. Symposium on Rock Mechanics (USRMS), May 27–30, 1980
Paper Number: ARMA-80-0362
... drainage. In containment of underground nuclear explosions, factors causing crack growth must be understood so that such situations can be avoided. In both these technologies, fractures are driven by gases--compressible fluids--through permeable media. Considerable effort has gone into studying isothermal...
Journal Articles
J Pet Technol 22 (09): 1157–1168.
Paper Number: SPE-2577-PA
Published: 01 September 1970
... Isothermal gas flow through porous media has been the object of considerable study - the work, in general, deals with the flow of ideal gases and is therefore not generally applicable to gas reservoirs having low permeabilities or high reservoir pressures. This is because ideal gas flow treatment implicity...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 9–12, 2005
Paper Number: SPE-97068-MS
... compressibility was not constant, but variable.Calculated variable cleat-compressibility constants were found to correlate well with previously published data for other coals.Sorption-induced matrix strain (shrinkage/swelling) was measured on unconstrained samples for different gases: carbon dioxide, methane...
Proceedings Papers

Paper presented at the SPE Production Operations Symposium, March 9–11, 1997
Paper Number: SPE-37440-MS
.... Introduction The compressibility factor is an important property for gases to calculate volume (material) of gases under given conditions (pressure, temperature). Also the Z-factor is important parameter to calculate other gas properties such as the formation volume factor and the coefficient of isothermal...
Proceedings Papers

Paper presented at the SPE Nigeria Annual International Conference and Exhibition, August 11–13, 2020
Paper Number: SPE-203755-MS
... percentage error explicit correlation software digital transformation pvt measurement pseudo isotherm z-factor value z-digit software compressibility factor chart Accurate information of Z-factor values is necessary in engineering applications such as gas metering, pipeline design, reserves...
Proceedings Papers

Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the SPE Canadian Energy Technology Conference, March 16–17, 2022
Paper Number: SPE-208920-MS
... at increasingly higher pressures to define an adsorption isotherm. For the case of the current experiments, maximum experimental pressures were dictated by saturation pressure of the gases and maximum operating pressure of the equipment. The process for desorption was similar, however, rather than increasing...
Proceedings Papers

Paper presented at the SPE/DOE Symposium on Improved Oil Recovery, April 17–21, 2004
Paper Number: SPE-89432-MS
... with temperature variation. Introduction Gas injection has been widely adopted in the oil industry as an efficient method of enhanced oil recovery. The injected gases are compressed before arriving at the oil layers, often at a different temperature than that of the reservoir. The temperature difference...
Journal Articles
SPE Res Eval & Eng 10 (03): 260–269.
Paper Number: SPE-97068-PA
Published: 19 June 2007
... metals & mining strain data overburden pressure fracture compressibility langmuir strain variable strain factor coal core Coal seams have the capacity to adsorb large amounts of gases because of their typically large internal surface area (30 to 300 m 2 /g) ( Berkowitz 1985 ). Some...

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