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托甫台工区位于塔河油田西南部,评价一间房组储层及其成藏特征可为塔河油田西扩和下一步勘探部署提供依据。中奥陶统岩溶缝洞型灰岩储层物性受构造背景以及岩溶孔、洞、缝储集体发育程度的控制,综合评价为II～III类储层。区内存在跨层系和自储自盖两种储盖组合,以及以岩溶缝洞型储集体控制的地层～不整合岩溶缝洞型常规油藏。该油藏是区内生排烃与圈闭形成时间匹配、运移通道畅通以及圈闭保存较好等因素的综合结果。
Tuofu Taiwan work area is located in the southwestern Tahe Oilfield, evaluation of a Fangfang reservoir and its accumulation of characteristics for the westward expansion of Tahe Oilfield and provide the basis for exploration and deployment. The physical properties of the Middle Ordovician karst fractured limestone reservoir are controlled by the tectonic setting and the degree of development of karst pores, vugs and reservoirs, and are comprehensively evaluated as Class II-III reservoirs. There are two kinds of reservoir-cap assemblages of cross-strata and self-storage and self-capping, as well as the conventional reservoirs of unconformity karst fractured-cave reservoirs controlled by karst fracture-cave reservoirs. The reservoir is a comprehensive result of such factors as time matching of hydrocarbon generation and expulsion to traps, smooth passage of migration channels and better preservation of traps.