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为更好了解陕甘宁盆地郝家山断背斜的含油气层埋藏特征,前期在郝家山已实施金泉12钻井,发现有明显的油气显示,但对油气显示层的隶属关系尚不明确,仅参照附近相邻含油地层进去确定,存在划分不准确问题。为修正这些问题,部署了金泉1井钻探。基于前人资料以及通过对钻孔岩芯的岩性特征详细观察,文章重新对金泉1井附近岩石地层进行了划分。本研究对于优化研究区地层划分与对比方面具有重要意义。
In order to get a better understanding of the burial characteristics of the Haojiashan faulted anticline in the Shan-Gan-Ning basin, the oil and gas have been obviously drilled in the Jinji 12 well before the Haojiashan Formation. However, the affiliation to the hydrocarbon-bearing layer is not clear. Adjacent to the adjacent oil-bearing strata to determine, there is an issue of inaccurate classification. In order to correct these problems, a well Jinquan 1 was drilled. Based on the previous data and through the detailed observation of the lithological characteristics of the borehole core, the article resets the lithostratigraphy near the well Jinjing-1. This study is of great significance for the optimization of stratigraphic division and contrast in the study area.