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Depositional Environment of Sands Beneath the Mid-Miocene Unconformity in the Plamuk-L and Surat-C Field Areas, Gulf of Thailand, Using Cuttings Identification, Well Log and Seismic Interpretation |
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| รหัสดีโอไอ | |
| Creator | Phansom Suksirisamphan |
| Title | Depositional Environment of Sands Beneath the Mid-Miocene Unconformity in the Plamuk-L and Surat-C Field Areas, Gulf of Thailand, Using Cuttings Identification, Well Log and Seismic Interpretation |
| Contributor | - |
| Publisher | Department of Geology, Chulalongkorn University |
| Publication Year | 2553 |
| Journal Title | Bulletin of Earth Sciences of Thailand (BEST) |
| Journal Vol. | 3 |
| Journal No. | 2 |
| Page no. | 49-51 |
| Keyword | MMU, Plamuk-L, Surat-C, Red Bed, sand, channel point-bars |
| URL Website | https://www.bestjournal.org/ |
| Website title | Bulletin of Earth Sciences of Thailand |
| ISSN | 1906-280X |
| Abstract | The sub-MMU sand in the Plamuk-L and Surat-C areas is a blocky, extensive thick sand (40-60 ft thick), deposited below the MMU and within the Upper Red Bed unit (Sequence IV), which was deposited under more oxic-conditions during exposure in a marine regression. This sand shows 23% - 34% porosity and 8% - 11% clay volume, which qualifies it as a good quality potential reservoir. Regional sand features interpreted from seismic amplitude map show pocket-like shapes, aligned along a tortuous trend in a northeast southwest direction. This distribution indicates variations that are likely tied to deposition as channel point-bars. The studied sand is filled with oil and gas in wells drilled into closed structures (SUWC-32 and 33), while hydrocarbons are absent in areas of non-closure. |
