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1. 发明授权

US06944545B2 System and method for determining the inclination of a wellbore 有权
标题翻译：用于确定井筒倾斜度的系统和方法
公开(公告)号：US06944545B2
公开(公告)日：2005-09-13
申请号：US10396056
申请日：2003-03-25
申请人： David A. Close , Steve C. Owens
发明人： David A. Close , Steve C. Owens
IPC分类号： E21B47/022 , G06F13/10 , G06F19/00
CPC分类号： E21B47/022
摘要： A well survey system comprising and electronic survey tool for determining the inclination of a wellbore is disclosed herein with methods of use. In some embodiments, the electronic survey tool includes an electrolytic tilt sensor adapted to measure a first tilt angle within a first plane and a second tilt angle within a second plane of the electrolytic tilt sensor. The electronic survey tool also includes a system processor for determining the inclination of the wellbore based on the first and second tilt angles. As such, a drop-in replacement and improvement on a mechanical critical vertical drift (CVD) tool is provided herein. The electronic survey tool of the present invention also improves upon and overcomes the disadvantages of prior art electronic survey tools. Due to the stability of the improved survey tool over time and with changes in ambient temperature, for example, the improved survey tool does not require periodic recalibration or correction of measurements for errors and biases.
摘要翻译：本文公开了一种用于确定井筒倾斜度的井测量系统和用于确定井筒倾斜度的电子测量工具。在一些实施例中，电子测量工具包括电解倾斜传感器，其适于测量第一平面内的第一倾斜角度和在电解倾斜传感器的第二平面内的第二倾斜角度。电子测量工具还包括用于基于第一和第二倾斜角确定井眼的倾斜度的系统处理器。因此，本文提供了机械临界垂直漂移（CVD）工具的替代和改进。本发明的电子调查工具还改进并克服了现有技术的电子调查工具的缺点。由于改进的测量工具随着时间的推移和环境温度的变化的稳定性，例如，改进的测量工具不需要定期重新校准或纠正测量误差和偏差。

2. 发明授权

US4903245A Downhole vibration monitoring of a drillstring 失效
标题翻译：钻柱的井下振动监测
公开(公告)号：US4903245A
公开(公告)日：1990-02-20
申请号：US166897
申请日：1988-03-11
申请人： David A. Close , Steven C. Owens , Trevor K. C. Pugh
发明人： David A. Close , Steven C. Owens , Trevor K. C. Pugh
IPC分类号： E21B12/02 , E21B44/00 , E21B47/00 , G01H1/00
CPC分类号： G01H1/00 , E21B12/02 , E21B44/00 , E21B47/00
摘要： Apparatus for monitoring vibration of a bottom hole assembly used to drill a well includes at least one accelerometer mounted in the bottom hole assembly to generate data in the form of electrical signals corresponding to the acceleration experienced by the assembly. The computer in the assembly is programmed to collect data from the accelerometer and compute magnitude of the assembly acceleration. Means are provided for selecting from the collected data a value which exceeds a preset level. In one form, when the collected data has a value above a preset level, an alarm signal is sent to the surface so corrective measures can be taken to prevent damage to downhole equipment.
摘要翻译：用于监测用于钻井的底孔组件的振动的装置包括安装在底部孔组件中的至少一个加速度计，以产生对应于组件所经历的加速度的电信号形式的数据。组装中的计算机被编程为从加速度计收集数据并计算组件加速度的大小。提供了用于从收集的数据中选择超过预设水平的值的装置。在一种形式中，当收集的数据具有高于预设水平的值时，将报警信号发送到表面，以便采取纠正措施来防止对井下设备的损坏。

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