Petroleum accumulations and inversion structures in the Xihu Depression, East China Sea Basin (Record no. 186153)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 02903nab a2200217 4500 |
| 008 - CÓDIGOS DE INFORMACIÓN DE LONGITUD FIJA - INFORMACIÓN GENERAL | |
| Campo de control de longitud fija | 260224s2011 xxu ing |
| 041 ## - IDIOMA | |
| Idioma | Inglés |
| 245 00 - TITULO | |
| Título | Petroleum accumulations and inversion structures in the Xihu Depression, East China Sea Basin |
| 260 ## - PUBLICACION, DISTRIBUCION, ETC | |
| Lugar de publicación, distribución, etc. | |
| Nombre de publicador, distribuidor, etc. | |
| Fecha de publicación, distribución, etc. | oct. 2011 |
| 270 ## - FECHA DE CARGA | |
| Fecha de carga | 13/10/2011 ; 13/10/2011 |
| 300 ## - DESCRIPCION FISICA | |
| Otra extensión | 12 p. ; 429-440 |
| 520 ## - RESUMEN, ETC | |
| Resumen | Transcripción del resumend el autor. The central inversion zone in the Xihu Depression, East China Sea, was formed during the Late Miocene and inversion here involves the entire Tertiary succession, nearly 10,000 m thick. Lithologically, the succession is composed mainly of sandstones and mudstones with minor coals and limestones. Hydrocarbons are present in a series of structural traps which formed as a result of the inversion process. Oil and gas exploration in the Xihu Depression has demonstrated that at least 90% of the commercial reserves so far found occur in inversion-related structural traps in the Eocene Pinghu Formation and Oligocene Huagang Formation (with minor reserves in Miocene strata) in the central inversion zone. The main reservoir lithology is sandstone. Studies have also confirmed that effective structural traps are controlled by the strength and style of inversion tectonics. However, the relationship between the geometry, kinematics and magnitude of the inversion structures and the oil and gas accumulations is not well understood. Based on 2D reflection seismic results and data from several wells, factors influencing the accumulation of hydrocarbons in the study area are considered, and include inversion fault activity rate, inversion ratio and the thickness of sediments eroded. The results show that the best exploration targets are located in the southern part of the central inversion zone. This area has a relatively low inversion fault activity rate (average 3.0 m/Ma), a low inversion ratio (average 0.4), and a relatively small thickness of sediments were eroded from the Miocene Longjing and Liulang Formation (=400 m) and Eocene Pinghu Formation. By contrast, the northern part of the inversion zone has a relatively high inversion fault activity rate (average 6.8 m/Ma), a high inversion ratio (0.8), and greater thicknesses were eroded (400 m to 1200 m). This may have resulted in the less favourable preservation conditions and the large-scale leakage of oil and gas. An analysis of the relationship between the inversion-related structural traps and hydrocarbon accumulations shows that most oil and gas accumulations occur in the southern part of the central inversion zone, especially in the Longjing, Liulang and Pinghu Formations. |
| 581 ## - ESTADO DE COLECCIÓN | |
| Estado de colección | 4 |
| 773 0# - CORRECCIÓN | |
| Título | Journal of Petroleum Geology |
| Partes relacionadas | 34 |
| 942 ## - DESC. DE MATERIAL | |
| Tipo de item KOHA | Artículo de Revista |
| 100 1# - RESPONSABLE PERSONAL | |
| Apellido, Nombre | Yang, F.-L. |
| 9 (RLIN) | 51945 |
| 100 1# - RESPONSABLE PERSONAL | |
| Apellido, Nombre | Xu, X. |
| 9 (RLIN) | 51946 |
| 100 1# - RESPONSABLE PERSONAL | |
| Apellido, Nombre | Zhao, W.-F. |
| 9 (RLIN) | 51947 |
| 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 | 200058246 | 200058246 | 06/03/2026 | Artículo de Revista |
