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Depositional Environment of the Basal Pratu Tao Formation Thap Raet Field, Phitsanulok Basin, Thailand |
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| รหัสดีโอไอ | |
| Creator | Phalaphoom Thamniyom |
| Title | Depositional Environment of the Basal Pratu Tao Formation Thap Raet Field, Phitsanulok Basin, Thailand |
| Contributor | - |
| Publisher | Department of Geology, Chulalongkorn University |
| Publication Year | 2555 |
| Journal Title | Bulletin of Earth Sciences of Thailand (BEST) |
| Journal Vol. | 5 |
| Journal No. | 2 |
| Page no. | 102-107 |
| Keyword | Sirikit Field, River-dominated Lake Delta, Distributary Channel |
| URL Website | https://www.bestjournal.org/ |
| Website title | Bulletin of Earth Sciences of Thailand |
| ISSN | 1906-280X |
| Abstract | This study was conducted to better understand the depositional environment of the Basal Pratu Tao Formation in the Thap Raet Field, Phitsanulok Basin in order to improve the prediction of reservoir distribution and properties. Two conventional cores and 11 well logs were integrated were used to interpret the depositional environment and establish paleogeographic models of the third order event. The depositional environment of the Basal Pratu Tao Formation was identified as a river-dominated lake delta consisting of: 1) a delta front to pro-delta, 2) a delta plain environment, and 3) a delta plain to proximal delta front facies. In addition, this study interprets the rivers in the lake delta system as distributaries of one river as opposed to multiple rivers. It also indicates that the delta had a NE-SW orientation, with distributaries coming in from the north and northwest. Stacked channels and mouth bar sands are good reservoirs in the field and apparently extend across the study area. Consequently, there is no concern about reservoir distribution for field development. |
