Innovative methods for flow-unit and pore-structure analyses in a tight siltstone and shale gas reservoir (Record no. 187145)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 03202nab a2200217 4500 |
| 008 - CÓDIGOS DE INFORMACIÓN DE LONGITUD FIJA - INFORMACIÓN GENERAL | |
| Campo de control de longitud fija | 260224s2012 xxu |
| 245 00 - TITULO | |
| Título | Innovative methods for flow-unit and pore-structure analyses in a tight siltstone and shale gas reservoir |
| 260 ## - PUBLICACION, DISTRIBUCION, ETC | |
| Lugar de publicación, distribución, etc. | |
| Nombre de publicador, distribuidor, etc. | |
| Fecha de publicación, distribución, etc. | feb. 2012 |
| 270 ## - FECHA DE CARGA | |
| Fecha de carga | 08/05/2012 ; 07/05/2012 |
| 300 ## - DESCRIPCION FISICA | |
| Otra extensión | 19 p. ; 355-374 |
| 520 ## - RESUMEN, ETC | |
| Resumen | Transcripción del resumen del autor: Tight gas reservoirs are notoriously difficult to characterize using laboratory-based methods because of: the existence of heterogeneity at several scales; fine pore structure that may not correlate to depositional controls and environment due to theimpact of diagenesis; stress sensitivity of porosity and permeability; sensitivity of permeability to fluid saturation; and nonDarcy flow effects under laboratory conditions, etc. Porosity, pore size distribution and permeability are correspondingly difficult to measure in the laboratory and upscale to reservoir scale. A promising technique to characterize flow heterogeneity in tight gas reservoirs is to relate permeability to dominant pore throat size; permeability is measured using steady- or nonsteady-state techniques and dominant pore size is typically estimated using the mercury intrusion method. Permeability and porosity is measured on full-diameter core or core plugs which may contain heterogeneities that are at a much finer scale than the sample size, resulting in composite estimates of both properties. We investigate the use of non-routine methods to characterize permeability heterogeneity and pore structure of a tight gas reservoir for use in flow unit identification. Profile permeability is used to characterize fine-scale (< 1 inch) vertical heterogeneity in a tight gas core; over 500 measurements were made. Profile permeability, while useful for characterizing heterogeneity, will not provide in-situ estimates of permeability; further, the scale of measurement is much smaller than logscale. Pulse-decay permeability measurements collected on core plugs under confining pressure were used to correct the profile permeability measurements to in-situ and point averages of profile permeability were used to relate to log-derived porosity measurements. Finally, a new method (for tight gas) was used to estimate the pore size distribution of several tight gas samples: N2 adsorption. A uni- or bi-modal distribution was observed for the samples, with the larger peak corresponding to the dominant pore throat radius, as inferred from the rp35 calculations. Further, the adsorption-desorption hysteresis loop was used to interpret the dominant pore shape as slot-shaped pores, which is typical of many tight gas reservoirs. The N2 adsorption method provides for rapid analysis and does not suffer from some of the same limitations of Hg-injection, however the method is limited to fine pore structures (< 1,000 nm). |
| 581 ## - ESTADO DE COLECCIÓN | |
| Estado de colección | 2 |
| 773 0# - CORRECCIÓN | |
| Título | AAPG Bulletin |
| Partes relacionadas | 96 |
| 942 ## - DESC. DE MATERIAL | |
| Tipo de item KOHA | Artículo de Revista |
| 100 1# - RESPONSABLE PERSONAL | |
| Apellido, Nombre | Clarkson, Christopher R. |
| 9 (RLIN) | 52557 |
| 100 1# - RESPONSABLE PERSONAL | |
| Apellido, Nombre | Jensen, Jerry L. |
| 9 (RLIN) | 42846 |
| 100 1# - RESPONSABLE PERSONAL | |
| Apellido, Nombre | Pedersen, Per Kent |
| 9 (RLIN) | 52558 |
| 100 1# - RESPONSABLE PERSONAL | |
| Apellido, Nombre | Freeman, Melissa |
| 9 (RLIN) | 52559 |
| 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 | 200059251 | 200059251 | 06/03/2026 | Artículo de Revista |
