Shale Gas-in-Place Calculations (Record no. 187487)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 02905nab a2200241 4500 |
| 008 - CÓDIGOS DE INFORMACIÓN DE LONGITUD FIJA - INFORMACIÓN GENERAL | |
| Campo de control de longitud fija | 260224s2012 xxu ing |
| 041 ## - IDIOMA | |
| Idioma | Inglés |
| 245 00 - TITULO | |
| Título | Shale Gas-in-Place Calculations |
| Subtítulo | Part I: New Pore-Scale Considerations |
| 260 ## - PUBLICACION, DISTRIBUCION, ETC | |
| Lugar de publicación, distribución, etc. | |
| Nombre de publicador, distribuidor, etc. | |
| Fecha de publicación, distribución, etc. | mar. 2012 |
| 270 ## - FECHA DE CARGA | |
| Fecha de carga | 10/12/2012 ; 10/12/2012 |
| 300 ## - DESCRIPCION FISICA | |
| Otra extensión | 10 p. ; 219-229 |
| 520 ## - RESUMEN, ETC | |
| Resumen | Transcripción del resumen del autor Using focused-ion-beam (FIB)/scanning-electron-microscope (SEM) imaging technology, a series of 2D and 3D submicroscale investigations revealed a finely dispersed porous organic (kerogen) material embedded within an inorganic matrix. The organic material has pores and capillaries having characteristic lengths typically less than 100 nm. A significant portion of total gas in place appears to be associated with interconnected large nanopores within the organic material. Thermodynamics (phase behavior) of fluids in these pores is quite different; gas residing in a small pore or capillary is rarefied under the influence of organic pore walls and shows a different density profile. This raises serious questions related to gas-in-place calculations: Under reservoir conditions, what fraction of the pore volume of the organic material can be considered available as free gas, and what fraction is taken up by the adsorbed phase? How accurately is the shale-gas storage capacity estimated using the conventional volumetric methods? And finally, do average densities exist for the free and the adsorbed phases? We combine the Langmuir adsorption isotherm with the volumetrics for free gas and formulate a new gas-in-place equation accounting for the pore space taken up by the sorbed phase. The method yields a total-gas-in-place prediction. Molecular dynamics simulations involving methane in small carbon slit-pores of varying size and temperature predict density profiles across the pores and show that (a) the adsorbed methane forms a 0.38 nm monolayer phase and (b) the adsorbed-phase density is 1.8 - 2.5 times larger than that of bulk methane. These findings could be a more important consideration with larger hydrocarbons and suggest that a significant adjustment is necessary in volume calculations, especially for gas shales high in total organic content. Finally, using typical values for the parameters, calculations show a 10 - 25% decrease in total gas-storage capacity compared with that using the conventional approach. The role of sorbed gas is more important than previously thought. The new methodology is recommended for estimating shale gas in place. |
| 581 ## - ESTADO DE COLECCIÓN | |
| Estado de colección | 1 |
| 773 0# - CORRECCIÓN | |
| Título | SPE Journal |
| Partes relacionadas | 17 |
| 942 ## - DESC. DE MATERIAL | |
| Tipo de item KOHA | Artículo de Revista |
| 100 1# - RESPONSABLE PERSONAL | |
| Apellido, Nombre | Ambrose, Ray J. |
| 9 (RLIN) | 52852 |
| 100 1# - RESPONSABLE PERSONAL | |
| Apellido, Nombre | Hartman, Robert C. |
| 9 (RLIN) | 52853 |
| 100 1# - RESPONSABLE PERSONAL | |
| Apellido, Nombre | Diaz-Campos, Mery |
| 9 (RLIN) | 52854 |
| 100 1# - RESPONSABLE PERSONAL | |
| Apellido, Nombre | Akkutlu, I. Yucel |
| 9 (RLIN) | 16031 |
| 100 1# - RESPONSABLE PERSONAL | |
| Apellido, Nombre | Sondergeld, Carl H. |
| 9 (RLIN) | 47003 |
| Biblioteca propietaria | Biblioteca actual | Fecha de adquisición | Inventario | Total de préstamos | Inventario | Fecha de carga | Tipo de item KOHA |
|---|---|---|---|---|---|---|---|
| Biblioteca Alejandro Angel Bulgheroni | Biblioteca Alejandro Angel Bulgheroni | 06/03/2026 | 200059606 | 200059606 | 06/03/2026 | Artículo de Revista |
