| A地区SⅢ油层组下部含泥含钙储层有效厚度及夹层划分标准 |
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| 引用本文： | 宋延杰,' target='_blank'>,李 卓,' target='_blank'>,唐晓敏,' target='_blank'>,管西永,郑江华.A地区SⅢ油层组下部含泥含钙储层有效厚度及夹层划分标准[J].中州煤炭,2023,0(2):97-105. |
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| 作者姓名： | 宋延杰 ' target='_blank'> 李 卓 ' target='_blank'> 唐晓敏 ' target='_blank'> 管西永 郑江华 |
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| 作者单位： | （1.东北石油大学 地球科学学院，黑龙江 大庆 163318； 2.非常规油气成藏与开发省部共建国家重点实验室培育基地， 黑龙江 大庆 163318； 3.大庆油田有限责任公司第九采油厂地质研究所，黑龙江 大庆 163853） |
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| 基金项目： | 黑龙江省自然科学基金项目(D2015012)；;黑龙江省省属本科高校基本科研业务费项目(HBHZX202003)； |
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| 摘 要： | 有效厚度标准是产能预测和储量计算的重要参数。分析不同含油产状岩心长度占比及产油能力，确定含油性下限为油斑。分析储层岩性与含油性关系并结合含油性下限，确定岩性下限为泥质粉砂岩和钙质粉砂岩；分析岩性、含油性与物性关系并结合岩性、含油性下限，确定物性下限：φ≥9.0%,K≥0.1×10-3μm2;根据试油资料，采用AC-RLLD交会图版，确定有效厚度电性标准：AC≥260μs/m,RLLD≥7.8Ω·m; 240μs/m﹤AC﹤260μs/m,RLLD≥-82.09ln(AC)+464.92。分析研究区泥质和钙质夹层测井响应特征，优选MSFL、RMN、RMG、HAC作为泥质和钙质夹层敏感曲线；确定泥质夹层划分标准：MSFL回返程度≥42%、RMN回返程度≥42%、RMG回返程度≥41%,钙质夹层划分标准：MSFL/MSFLS1D≥12、RMN/RMNS1D≥4.2、HAC/HACS1D≤0.67。研究区5口取心井储层有效厚度解释与对比，表明建立的有效厚度及夹层划分标准适用于研究区目的...
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| 关 键 词： | SⅢ油层组 含泥含钙储层 有效厚度 微电阻率和高分辨率时差 夹层划分 |
Effective thickness and interlayer division standard of shale-rich and calcite-rich reservoirs in the lower part of SⅢ oil formation in A area |
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| Song Yanjie,' target='_blank'>,Li Zhuo,' target='_blank'>,Tang Xiaomin,' target='_blank'>,Guan Xiyong,Zheng Jianghua. Effective thickness and interlayer division standard of shale-rich and calcite-rich reservoirs in the lower part of SⅢ oil formation in A area[J].Zhongzhou Coal,2023,0(2):97-105. |
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| Authors: | Song Yanjie ' target='_blank'> Li Zhuo ' target='_blank'> Tang Xiaomin ' target='_blank'> Guan Xiyong Zheng Jianghua |
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| Affiliation: | （1.College of Geo-science，Northeast Petroleum University，Daqing 163318，China； 2.Accumulation and Development of Unconventional Oil and Gas，State Key Laboratory Cultivation Base Jointly-constructed by Heilongjiang Province and the Ministry of Science and Technology，Daqing 163318，China； 3.Institute of Geology，No.9 Oil Production Company，Daqing Oilfield Limited Company，Daqing 163853，China） |
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| Abstract: | The effective thickness standard is an important parameter for productivity prediction and reserve calculation.Based on the statistical analysis of the proportion of core length and the oil-producing capacity of the perforated reservoir with different oil-bearing occurrence，the lower limit of oil-bearing property as oil spot was determined.By analyzing the relationship between reservoir lithology and oil-bearing property，and combining with the lower limit of oil-bearing property，it is determined that the lower limit of lithology is argillaceous siltstone and calcareous siltstone.Based on the analysis of the relationship between lithology，oil-bearing property and physical property，and the lower limits of lithology and oil-bearing property，the lower limit of reservoir physical property is determined as follows:φ≥9.0%，K≥0.1×10-3 μm2.According to oil test data，AC-RLLD intersection chart is used to determine the electrical standard of effective thickness:AC≥260 μs/m，RLLD≥7.8 Ω·m；240 μs/m﹤AC﹤260 μs/m，RLLD≥-82.09ln（AC）+464.92.After the log response characteristics of typical shale interlayer and calcareous interlayer are analyzed，MSFL、RMN、RMG、HAC are selected as the sensitive curves for shale interlayers and calcareous interlayers. The classification criteria of argillaceous interlayer is determined:MSFL return degree ≥ 42%，RMN return degree ≥ 42%，RMG return degree ≥ 41%，calcareous interlayer classification criteria:MSFL/MSFLS1D≥12、RMN/RMNS1D≥4.2、HAC/HACS1D≤0.67. The interpretation and comparison of the effective thickness of the five core wells in the study area show that the established effective thickness and interlayer classification criteria are applicable to the target layer in the study area. |
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| Keywords: | ,SⅢ oil formation, shale-rich and calcite-rich reservoirs, effective thickness, micro-resistivity log and high-resolution acoustic transit time log, interlayer division |
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