| 泥浆侵入低电阻率环带对斜井感应测井响应影响分析 |
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| 引用本文： | 谢伟彪,刘迪仁,吴立峰,王洪亮.泥浆侵入低电阻率环带对斜井感应测井响应影响分析[J].测井技术,2011,35(5):427-430. |
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| 作者姓名： | 谢伟彪 刘迪仁 吴立峰 王洪亮 |
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| 作者单位： | 1. 长江大学油气资源与勘探技术教育部重点实验室,湖北 荆州 434023;长江大学地球物理与石油资源学院,湖北 荆州 434023
2. 中国石油西部钻探工程有限公司测井公司,新疆 克拉玛依,834000 |
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| 基金项目： | 国家自然科学基金项目“伪随机扩频脉冲在地球介质中的传播特性研究”(No.40774073)资助 |
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| 摘 要： | 依据斜井几何因子理论,通过数值计算研究了泥浆侵入低电阻率环带环境下井斜角度对双感应测井响应的影响,以及泥浆侵入深度对斜井双感应测井响应的影响.深感应测井和中感应测并在井斜角度0°～90°之间会有2个敏感角度段,并且仪器在这2个响应敏感变化倾斜角度段内响应特性有较大的差异.在低电阻率环带电阻率与地层电阻率比较接近时,敏感...
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| 关 键 词： | 感应测井 斜井 低电阻率环带 几何因子 泥浆侵入 |
Effect of Mud Invasion on Induction Logging Response in Deviated Hole with Low Resistivity Annulus |
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| XIEWeibiao,LIU Diren,WU Lifeng,WANG Hongliang.Effect of Mud Invasion on Induction Logging Response in Deviated Hole with Low Resistivity Annulus[J].Well Logging Technology,2011,35(5):427-430. |
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| Authors: | XIEWeibiao LIU Diren WU Lifeng WANG Hongliang |
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| Affiliation: | 1.Key Laboratory of Exploration Technologies for Oil and Gas Resources,Yangtze University,Jingzhou,Hubei 434023,China; 2.Geophysics and Oil Resource Institute,Yangtze University.Jingzhou,Hubei 434023,China;3.Well Logging Company, Western Drilling Engineering Corporation,CNPC,Karamay,Xinjiang 834000,China) |
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| Abstract: | Based on induction log geometrical factor in deviated hole,studied are the effect of inclination angle and mud invasion depth on dual induction log responses in deviated hole with low resistivity annulus by numerical calculation.Analysis results show that deep induction log and middle induction log has two sensitive angle sections within 0°to 90°inclination angle,and response characteristics are quite different in sensitive angle section;When resistivity is close with formation resistivity in low resistivity annulus,sensitive angle section 1 disappears;In sensitive angle section 2,there is obvious angle difference between deep induction log responses and middle induction log responses,and the angle difference increases with the ratio decrease of invaded zone resistivity and formation true resistivity;Under different inclination angles,the middle and deep induction log response changes with depth is the same as that in vertical wells.The above analysis provides a theoretical basis for induction log in oil and water reservoir identification and removing the effect of low resistivity annulus. |
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| Keywords: | induction logging deviated hole low resistivity annulus geometrical factor mud filtration invasion |
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