Viscous creep in room-dried unconsolidated Gulf of Mexico shale (II) (Record no. 175667)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 02004nab a2200193 4500 |
| 008 - CÓDIGOS DE INFORMACIÓN DE LONGITUD FIJA - INFORMACIÓN GENERAL | |
| Campo de control de longitud fija | 260224s2010 xxu |
| 245 00 - TITULO | |
| Título | Viscous creep in room-dried unconsolidated Gulf of Mexico shale (II) |
| Subtítulo | Development of a viscoplasticity model |
| 260 ## - PUBLICACION, DISTRIBUCION, ETC | |
| Lugar de publicación, distribución, etc. | |
| Nombre de publicador, distribuidor, etc. | |
| Fecha de publicación, distribución, etc. | mayo 2010 |
| 270 ## - FECHA DE CARGA | |
| Fecha de carga | 03/08/2010 ; 02/08/2010 |
| 300 ## - DESCRIPCION FISICA | |
| Otra extensión | 6 p. ; 50-55 |
| 520 ## - RESUMEN, ETC | |
| Resumen | Transcripción del resumen del autor. Laboratory creep experiments show that compaction of dry Gulf of Mexico shale is a permanent irrecoverable process associated with viscoplastic deformation. In order to find a relatively simple model that can describe such viscoplastic behavior of the dry frame of the shale, we combined the Perzyna viscoplasticity constitutive law with a modified Cambridge clay plastic yield model. The constitutive equation for this model is a power-law function that relates strain rate to the ratio of dynamic and static yield surfaces defined by the modified Cam-clay model. By incorporating the effect of strain hardening on the static yield pressure, we derived an equation relating volumetric creep strain at a constant hydrostatic pressure level to the logarithm of time, which is in good agreement with experimental results. We determined the model parameters by fitting experimental data of creep strain as a function of time. The determined parameters indicate that the yield stress of the hydrostatically loaded shale increases by 6–7% as strain rate rises by an order of magnitude. This demonstrates that the laboratory-based prediction of yield stress (as well as porosity) may be significantly overestimated. Thus, strain-rate calibration is required for weak shales such as those studied here to appropriately estimate physical properties under in situ conditions. |
| 581 ## - ESTADO DE COLECCIÓN | |
| Estado de colección | 1-2 |
| 773 0# - CORRECCIÓN | |
| Título | Journal of Petroleum Science & Engineering |
| Partes relacionadas | 72 |
| 942 ## - DESC. DE MATERIAL | |
| Tipo de item KOHA | Artículo de Revista |
| 100 1# - RESPONSABLE PERSONAL | |
| Apellido, Nombre | Chang, Chandong |
| 9 (RLIN) | 42910 |
| 100 1# - RESPONSABLE PERSONAL | |
| Apellido, Nombre | Zoback, Mark D. |
| 9 (RLIN) | 21228 |
| 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 | 05/03/2026 | 200047563 | 200047563 | 05/03/2026 | Artículo de Revista |
