| 核磁测井重油模式测量案例分析 |
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| 引用本文： | 姜志敏,党煜蒲,李仙枝,张向林,张嘉伟,薛志波.核磁测井重油模式测量案例分析[J].国外测井技术,2020(1):33-37,2. |
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| 作者姓名： | 姜志敏 党煜蒲 李仙枝 张向林 张嘉伟 薛志波 |
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| 作者单位： | 中海油田服务股份有限公司 |
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| 基金项目： | 国家重大科技专项(2017ZX05019003-002)资助。 |
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| 摘 要： | 核磁测井技术在得到广泛使用的同时,测量模式成为研究的重点。本文就核磁测井仪器的重油采集模式进行了详细分析。通过分析,该采集模式的G·TE分布适合进行稠油样品的测量,也适合进行D-T2谱的反演。本文建立了针对核磁共振重油测量模式的D-T2二维反演分析方法,通过数值模拟验证了该算法的可行性。在实验室刻度桶模拟测井中得到很好的水信号,初步证明该方法的准确性。通过渤海实际井测量案例分析再次证明了重油采集模式的可靠性。
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| 关 键 词： | 重油测量模式 D-T2谱 扩散系数 弛豫时间 核磁测井 G·TE权重 |
Case study of NMR logging heavy oil mode measurement |
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| Jiang Zhimin,Dang Yupu,Li Xianzhi,ZhangXianglin,Zhang Jiawei,Xue Zhibo.Case study of NMR logging heavy oil mode measurement[J].World Well Logging Technology,2020(1):33-37,2. |
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| Authors: | Jiang Zhimin Dang Yupu Li Xianzhi ZhangXianglin Zhang Jiawei Xue Zhibo |
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| Abstract: | While nuclear magnetic logging technology has been widely used,measurement mode has become the focus of research.In this paper,the heavy oil acquisition mode of nuclear magnetic logging instrument is analyzed in detail.Through analysis,the G·TE distribution of this collection mode is suitable for the measurement of heavy oil samples and the inversion of d-t2 spectrum.In this paper,a d-t22d inversion analysis method for NMR heavy oil measurement model is established,and its feasibility is verified by numerical simulation.The accuracy of the method is proved by the good water signal obtained from the simulated logging in laboratory.The reliability of heavy oil acquisition model is proved again by the case study of actual well measurement in Bohai sea. |
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| Keywords: | Heavy oil measurement mode D-T2 spectrum Diffusion Relaxation time Nuclear magnetic logging G TE weights |
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