Development and Use of a Downhole System for Measuring Drilling Engineering Parameters
Development and Use of a Downhole System for Measuring Drilling Engineering Parameters
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DOI：
10.1007/s10553-015-0603-z
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发表时间：
2015-08
影响因子：
0.6
通讯作者：
Ma Tian-shou;Chen Ping
中科院分区：
文献类型：
--
作者：
Ma Tian-shou;Chen Ping
开发了一种能够在数千米深度的井下条件下运行的系统，用于实时测量钻井工程参数（DEP）。目的是监测钻井过程中的DEP，包括钻头上的重量（WOB）、钻头上的扭矩（TOB）和钻头上的侧向力。介绍了传感器的结构和参数设计、传感器标定以及现场测试结果。设计了四个独立的应变计和一个测量系统，用于在钻井过程中实时测量井下的 DEP。现场测试表明设计是合理的。实测轴力大于计算值，说明真实钻压大于测井钻压，真实TOB大于测井扭矩。因此，该测量仪器能够满足旋转导向钻井和常规钻井的要求。测量的 WOB 和 TOB 数据还可用于分析钻柱振动。
A system capable of operating in downhole conditions at depths of several thousand meters is developed for measuring drilling engineering parameters (DEP) in real time. The aim is to monitor DEP during drilling, including the weight on the drill bit (WOB), torque on the drill bit (TOB), and lateral force on the drill bit. The design of the structure and parameters of the sensors, calibration of the sensors, and the field test results are described. Four separate strain gages and a measuring system are designed to measure DEP in the downhole during drilling in real time. The field tests show that the designs are sound. The measured axial force is greater than the calculated value, which means that the real WOB is higher than the logging WOB and the real TOB is greater than the logging torque. Thus, the survey instruments can meet the requirements for rotary steerable drilling and conventional drilling. The measured WOB and TOB data can also be used to analyze drill string vibrations.