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须四下亚段岩屑砂岩储层的含气测井响应特征为一高三中一低一负。新场须家河四段下亚段岩屑砂岩储层类型划分为孔隙型和裂缝孔隙型。孔隙发育较好的孔隙型储层具有一定的勘探价值,由于无裂缝沟通,渗透能力较差,一般需要经过有针对性的储层改造,才能获得较好产能。裂缝-孔隙型储层,基质孔隙发育,裂缝发育,可获得较好产能。利用P1/2正态统计法、泊松比与体积压缩系数重叠法和核磁差谱移谱法可以有效地判别储层流体性质。
The gas logging response characteristics of the lithospheric sandstone reservoirs in the fourth and the fourth member of lower strata should be high, middle, middle, low, negative and negative. The new reservoir Xujiahe four sections of sub-lithospheric sandstone reservoir type is divided into pore type and fracture pore type. Well-developed pore-type reservoirs have certain exploration value. Due to no crack communication and poor penetrating ability, well-targeted reservoir modification generally requires better productivity. Fracture - pore reservoir, matrix porosity development, crack development, can get better productivity. The P1 / 2 normal statistical method, Poisson ’s ratio, volumetric compression coefficient overlap method and nuclear magnetic resonance spectrum shift spectrum method can be used to discriminate reservoir fluid properties effectively.