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Petroleum Science >2013,??Issue 1:??58-64 DOI: https://doi.org/10.1007/s12182-013-0250-0

Oil filling history of the Bashituo Oilfield in the Markit Slope, SW Tarim Basin, China Open?Access

文章信息

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作者：Cui Jingwei,Wang Tieguan,Li Meijun,Ou Guangxi,Geng Feng and Hu Jian
作者單位：

Research Institute of Petroleum Exploration & Development, PetroChina, Beijing 100083, China Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing 102249, China;Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing 102249, China;Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing 102249, China;Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing 102249, China;Northwest Branch Company, SINOPEC, Urumqi, Xinjiang 830011, China;Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing 102249, China

投稿時(shí)間：2012-02-14
引用方式：Cui, J., Wang, T., Li, M. et al. Pet. Sci. (2013) 10: 58. https://doi.org/10.1007/s12182-013-0250-0

文章摘要

The Markit Slope is an important area for the petroleum exploration in the Tarim Basin. Elucidation of the oil filling history of discovered oilfields has great significance for recognizing the cumulation processes of the whole region. Using molecular geochemistry, fluid inclusion techniques
and basin modeling, we studied the oil filling process of the Bashituo Oilfield that is located in the west of the Markit Slope. The molecular migration indexes, such as the methyldibenzothiophene ratio (4-/1-MDBT), trimethylnaphthalene ratio (TMNr) and pyrrolic nitrogen compounds content, decrease from west to east, indicating that the charging direction and migration pathways are from west to east. Lithological analysis and homogenization temperatures in saline fluid inclusions accompanied with oil
fluid inclusions suggest that two charging periods occurred of the Devonian oil reservoir. Combining the
burial history and heating history of well BT4, Basinmod 1D software modeling shows the two oil filling
periods are from 290 Ma to 285 Ma and from 10 Ma to 4 Ma, respectively, and later oil filling dominates.
This study may be helpful to understand the accumulation process and provide useful references for oil
and gas exploration in the Markit Slope.

關(guān)鍵詞

    Oil migration direction, filling time, fluid inclusion, basin modeling, Tarim Basin