| 引用本文: | 王伟男,余钦范,丁柱.一种新的石油储层高分辨自然电位测井电极系[J].哈尔滨工业大学学报,2010,42(8):1332.DOI:10.11918/j.issn.0367-6234.2010.08.032 |
| WANG Wei-nan,YU Qin-fan,DING Zhu.A new kind of high-resolution SP logging electrode array for oil reservior[J].Journal of Harbin Institute of Technology,2010,42(8):1332.DOI:10.11918/j.issn.0367-6234.2010.08.032 |
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| 摘要: |
| 针对目前使用的自然电位测井电极系仍采用原始的地面参考电极,存在测量干扰大、测井曲线分辨率低等长期未能解决的问题,设计一种井下参考电极的高分辨自然电位测井电极系,电极系采用阵列式结构,电极之间彼此绝缘,仪器在上提过程中,通过单片机自动识别经过泥岩地层的参考电极,然后以泥岩电位为参考电位进行自然电位测量.现场试验结果令人满意,其抗干扰能力和曲线分辨率均较原有的自然电位测井电极系明显提高. |
| 关键词: 自然电位 测井 分辨率 电极系 |
| DOI：10.11918/j.issn.0367-6234.2010.08.032 |
| 分类号:P631.811 |
| 基金项目:国家自然科学基金资助项目(49894190/43) |
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| A new kind of high-resolution SP logging electrode array for oil reservior |
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WANG Wei-nan1,2, YU Qin-fan1, DING Zhu2
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1.Key Laboratory of Geo-detection,Ministry of Education,China University of Geosciences,Beijing 100083,China;2.The First Well Logging Company of Daqing Drilling & Exploration Group,Daqing 163412,China
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| Abstract: |
| Aimed at the problems of high interference in measurement and low logging curve resolution for the logging electrode array used at present which still adopts original surface reference electrode,this paper designs a high-resolution SP logging electrode array of downhole reference electrode.The electrode array adopts array structure.It is insulative between the electrodes each other.The tool identifies the reference electrode of shaly formation automatically through singlechip when it is lifted,then it takes shale potential as the reference potential to measure SP.The field test results are satisfactory.The capacity of resisting disturbance and curve resolution are improved obviously compared with original SP logging electrode array. |
| Key words: spontaneous potential well logging resolution electrode array |
