随钻超声井眼成像可行性实验研究

钻采工艺 ›› 2022, Vol. 45 ›› Issue (6): 42-47.

随钻超声井眼成像可行性实验研究

张硕^{1 ,2}, 高文凯¹, 滕鑫淼¹, 刘珂¹, 丁华华¹, 禹德洲¹

１中国石油集团工程技术研究院有限公司２中国石油勘探开发研究院

出版日期:2022-11-25 发布日期:2022-11-30
作者简介:张硕（1999-），2020年毕业于东北石油大学测控技术与仪器专业，现为中国石油勘探开发研究院在读硕士研究生，主要从事随钻测量与控制技术研究与装备研制方面的科研工作。地址：（102206）北京市昌平区中国石油集团工程技术研究院有限公司，电话：15716864179, E-mail:2498211703 @ qq. com
基金资助:
中国石油天然气集团有限公司直属院所基础研究和战略储备技术研究基金项目“ 井筒内窥扫描成像技术”（编号：2020D-5008-13）。

Experimental Study on Feasibility of Ultrasonic Borehole Imaging While Drilling

ZHANG Shuo^1,2, GAO Wenkai¹, TENG Xinmiao¹, LIU Ke¹, DING Huahua¹, YU Dezhou¹

1 . CNPC Engineering Technology R&D Company Limited, Beijing 102206, China; 2. Research Institute ofPetroleum Exploration & Development, CNPC, Beijing 100083, China

Online:2022-11-25 Published:2022-11-30

摘要/Abstract

摘要： 随着油气勘探开发难度的不断增大，地质与工程条件日趋复杂，施工风险日益加大，井壁失稳、垮塌等问题制约钻完井工程效益及安全，随钻超声井眼成像技术可以在随钻工况下实时测量高精度的井径大小与井壁特征，获取高质量的井眼图像，为钻进过程中井眼工程状况和质量的监测提供了解决方案。为研发随钻超声井眼成像工具并对图像进行准确解释，进行了随钻超声井眼成像可行性实验研究。设计搭建了实验装置与实验平台，制定了实验方案，进行了室内模拟实验，分析了不同测量距离、不同待测物、不同传输介质对超声波传输时间与回波幅值的影响。实验结果表明：超声波传输时间与测量距离呈线性正相关，可以用于井径的测量及井眼形状的识别；超声波回波幅值对井壁特征敏感，可以用于井壁缝隙、孔隙等特征的识别与成像；随钻超声井眼成像方法可以适用于高密度油基钻井液中。

关键词: 随钻测井, 超声成像, 井眼成像, 影响因素, 实验研究

Abstract: With the increasing difficulty of oil and gas exploration and development, the geological and engineering conditions are becoming more and more complex, the construction risk is increasing, and the problems of wellbore instability and collapse restrict the efficiency and safety of drilling and completion engineering. The ultrasonic borehole imaging while drilling technology can measure the high-precision borehole diameter and wellbore characteristics, obtain high-quality borehole images while drilling in real time. It provides a solution for monitoring borehole engineering condition and quality while drilling. In order to develop ultrasonic borehole imaging while drilling tools and accurately interpret the images, this paper researches the feasibility of ultrasonic borehole imaging while drilling, builds and designs the experimental device and experimental platform and formulates the experimental scheme. Laboratory simulation experiments were carried out to analyze the effects of different measurement distance, different objects and different transmission medium on the travel time and echo amplitude of ultrasonic. The results show that the ultrasonic travel time has a positive linear correlation with the measurement distance, which can be used to measure the well diameter and identify borehole shape; ultrasonic echo amplitude is sensitive to borehole characteristics and can be used to identify and image the fracture aperture and bedding parting; ultra-sonic borehole imaging while drilling method can be used in high-density oil-based mud.

Key words: logging while drilling, ultrasonic imaging, borehole imaging, influence factor, experimental study

张硕, 高文凯, 滕鑫淼, 刘珂, 丁华华, 禹德洲. 随钻超声井眼成像可行性实验研究[J]. 钻采工艺, 2022, 45(6): 42-47.

ZHANG Shuo, GAO Wenkai, TENG Xinmiao, LIU Ke, DING Huahua, YU Dezhou. Experimental Study on Feasibility of Ultrasonic Borehole Imaging While Drilling[J]. Drilling & Production Technology, 2022, 45(6): 42-47.

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