| 邢济麟.松辽盆地南部青一段页岩油甜点评价[J].矿产勘查,2019,(9):2286-2290 |
| 松辽盆地南部青一段页岩油甜点评价 |
| Dessert evaluation of shale oil in Qingyi Formation of Southern Songliao Basin |
| 投稿时间：2019-08-13 |
| DOI： |
| 中文关键词: 松辽盆地南部 青一段 页岩油 甜点评价 评价标准 |
| 英文关键词: Southern Songliao Basin, Qingyi Formation, shale oil, dessert evaluation, evaluation criteria |
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| 摘要点击次数: 1709 |
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| 中文摘要: |
| 松辽盆地南部发育青山口和嫩江两期大规模湖侵,形成青一、二段,嫩一、二段四套广泛发育的页岩层系,其中青一段勘探面积广,暗色泥、页岩厚度大、有机质丰度高、已成熟、是松南页岩油发育的主力层系。笔者以甜点评价为核心,以岩心观察、分析化验、测井评价等为手段,初步认为松南青一段页岩油发育区岩性组合以页岩、泥岩互层为主,局部夹薄层砂岩,其中页岩占地层厚度50%以上,相比泥岩,有机质丰度高,孔隙度、饱和度条件好,页岩与薄砂岩夹层为主力储层；同时,页岩脆性矿物含量较高,且本区普遍存在超压,页岩油成藏条件有利。在此基础上,结合沉积特征,划分两种类型页岩油,初步明确纵向有利层段及平面分布特征,针对两种类型页岩油分别部署探井,试油均获得突破,展现了松辽盆地南部青一段页岩油良好的勘探潜力。 |
| 英文摘要: |
| In the southern Songliao Basin, Qingshankou and Nenjiang Lake transgressions developed in two stages, forming four sets of widely developed shale strata, namely, Qingshankou 1, Nenjiang 1 and Nenjiang 2. Among them, Qinghai 1 has a wide exploration area, large dark mud and shale thickness, high organic abundance, mature and is the main shale oil development strata in southern Songliao Basin. Taking dessert evaluation as the core, core observation, analysis and testing, logging evaluation as the means, the author preliminarily considers that shale and mudstone interbeds are the main lithological assemblages in the shale oil development area of the first member of Qinghai Formation in Songnan, and thin sandstones are partially intercalated, in which shale accounts for more than 50% of the formation thickness. Compared with mudstone, organic matter abundance is high, porosity and saturation. The shale and thin sandstone interbeds are the main reservoirs with good harmony conditions. Meanwhile, the brittle mineral content of shale is relatively high, and overpressure generally exists in this area, which is favorable for shale oil reservoir formation. On this basis, combined with sedimentary characteristics, two types of shale oil are classified, and the vertical favorable intervals and plane distribution characteristics are preliminarily clarified. Exploratory wells are deployed for the two types of shale oil respectively, and oil testing has achieved breakthroughs, showing good exploration potential of shale oil in Qing 1 Member in southern Songliao Basin. |
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