岩性密度是同时测量地层密度和岩性的测井方法，目前在油田得到广泛推广。
Lithology density logging method can measure the density and PE value of the formation at the same time, so it has been widely used in the oilfield.
本文介绍一种用岩性密度和补偿中子双孔隙度法评价低孔隙度白云岩气藏的方法。
A method for evaluation of low porosity dolomite reservoir using lithology density and compensated neutron logs is presented in this paper.
从深度、密度剖面中，地质人员可以解释出地层的岩性，时代、砂体的厚度、沉积旋回、沉积粒序，几米、十几米的断层和褶皱。
Geologist can interpreted the lithology, era, sand thickness, sedimentary sequence of the stratum, folding, small fault from the processed depth-density profile.
裂缝的密度和开启程度是渗流性和产能主控因素，其密度和充填程度随岩性岩相变化而变化。
The fracture density and their opening status controll the permeability and throughput of volcanic reservoirs and change along with the variation in lithology and lightfaces.
根据密度、三侧向电阻率、自然伽马、声波等测井曲线在煤层、灰岩、砂岩、泥岩、细砂岩等岩性上的组合特征，进行了岩煤层的对比。
Based on combination features of laterolog-3 resistivity, gamma-ray, sonic traces on coal seam, limestone, sandstone, mudstone, fine-grained sandstone, carried out rock and coal seam correlation.
根据密度、三侧向电阻率、自然伽马、声波等测井曲线在煤层、灰岩、砂岩、泥岩、细砂岩等岩性上的组合特征，进行了岩煤层的对比。
Based on combination features of laterolog-3 resistivity, gamma-ray, sonic traces on coal seam, limestone, sandstone, mudstone, fine-grained sandstone, carried out rock and coal seam correlation.
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