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积家井勘查区在大地构造位置上处于鄂尔多斯西缘坳陷褶皱断裂带(磁萌断褶带)中段的东侧、积家井—甜水堡背斜的北段。含煤地层为侏罗系中统延安组,厚度400m左右,为一套河流—湖泊三角洲沉积,含可采煤层及局部可采煤层9层,煤层平均总厚度23.99m,含煤系数5.8%,其中主要可采煤层为五、九、十五、十六、二十七,煤层厚度大、层位稳定,结构简单,属低灰—特低灰、特低—低中硫、特低磷、高发热量的不粘煤。
Jijiajing prospecting area is located on the east side of the middle section of the fold fault zone (magnetocene fault fold) in the western margin of the Ordos Basin in the tectonic position of the area, and is located in the northern part of the Jijiajing-Shui Shui Po anticline. The coal-bearing strata are the Jurassic Central-West Yan’an Formation, with a thickness of about 400 m. They are a set of river-lake delta deposits with 9 coal layers that can be exploited and partially recoverable, with an average total thickness of 23.99 m and a coal coefficient of 5.8 %, Of which the main recoverable coal seams are five, nine, fifteen, sixteen and twenty-seven, the thickness of the coal seam is large, the strata are stable and the structure is simple, which belongs to the low ash-extra low ash, extra low- Low-phosphorus, high-calorie non-stick coal.