Tracing Study on Oil-Gas Filling Pathways of Yakela Gas Condensate Field in Tabei Uplift
详细信息
- 责任者：Li Hongbo (State Key Laboratory of Petroleum Resources & Prospecting ; China University of Petroleum ; Beijing 102249 ; China) ; Wang Tieguan
- 刊名：Acta Petrolei Sinica
- 出版年：2013
- 卷期：34(2)
- 关键词：凝析油 ; condensate oil ; 油气充注 ; oil and gas charging ; 塔北隆起 ; Tabei Uplift
- 页码：p.219-224
- 图表：illus., 1 table, 15 refs.
- 分类号：1003
- issnNo：ISSN0253-2697
- isbnNo：CN11-2128/TE
摘要
Molecular parameters such as triterpanes Ts/(Ts+Tm),total concentration of carbazole compounds,1,8-/2,4-DMC and 4-/1-MDBT were used as "tracers" to investigate oil-gas migration and accumulation of the Yageliemu Formation(K1y) in the Yakela gas condensate field in the Tabei uplift.The results indicated that in the K1y oil reservoir,oil migration and reservoir filling have major and minor pathways with significant fractionation effect.It was suggested that the main charging point should be around S-7 and YK-13 wells located at the eastern end of the reservoir.Oil migrated in parallel with the Luntai fault and along the long axis of the anticline with NEE-SWW direction.And there exits a secondary filling point in the southeast of the oil reservoir.Oil migrated towards NW direction and accumulated at the structural high.Both the above-mentioned oil-gas filling pathways were apparently controlled by the Luntai fault in the south of the Yakela gas condensate field,which is supposed to be a major oil-gas migration pathway in the Tabei uplift.
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