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世界地质 2017, 36(4) 1268-1276 DOI:
ISSN: 1004-5589 CN: 22-1111/P |
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| 基础地质 |
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基于有效介质HB电阻率模型的低阻油气层测井评价方法研究 |
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梁宇，黄布宙 |
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吉林大学 地球探测科学与技术学院，长春 130026 |
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摘要：
基于有效介质 HB 电阻率模型，将黏土水作为分散相加入到模型方程中，采用双水模型分析黏土水电阻率方式计算湿黏土电阻率，建立改进的有效介质 HB 电阻率模型。结果表明: 改进模型对密闭取芯井计算的含水饱和度与密闭取芯分析结果一致性较好。对研究区 17 个层段实际资料进行测井处理解释，与试油结论相比，改进模型解释符合率达到 76. 5%，明显高于原模型 41. 2%的符合率。 |
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关键词：
低阻油气层
有效介质 HB 电阻率模型
黏土水
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Log evaluation method of low resistivity oil-gas reservoir based on effective medium HB resistivity model |
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LIANG Yu，HUANG Bu-zhou |
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College of Geo-exploration Science and Technology，Jilin University，Changchun130026，China |
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Abstract:
Based on effective medium HB resistivity model，clay water is added as dispersed phase to the model equation，and resistivity of wet clay is calculated by dual water model，and improved effective medium HB resistivity model is built． The results show that for sealed coring well，the calculated water saturation of improved model is very consistent with sealed coring results． The improved model is applied to the log interpretation of 17 reservoir intervals in this area，and the comparison of interpretation results with oil testing shows that the coincidence rate is 76. 5%，which is significantly higher than 41. 2% of original model． |
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Keywords:
low resistivity oil-gas reservoir
effective medium HB resistivity model
clay water resistivity
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