Full waveform vibration and shock measurement tool for measurement-while-drilling
Source abstract
Abstract
The bottom hole assembly during the drilling process is prone to fatigue and damage under the influence of alternating stress, particularly the drill bit and bottom part of the bottom hole assembly. The vibration and shock data are normally used to estimate the working status of the drill collars and for data post-processing of a particular logging method. The recent developments in drilling technology have increased investigations into continuous vibration and shock information measurement. However, existing tools store only the results of signal processing and cannot determine the raw full waveform; thus, they cannot be used to extract comprehensive information. Therefore, we proposed a novel tool for measurement-while-drilling, equipped with triaxial vibration and shock sensors. The tool can record the full waveform of six channels and use a large-capacity NAND flash to store the recorded raw full waveform. We performed laboratory and field tests to verify the stability and reliability of the tool at temperatures up to 150 °C to support operations in deep downhole environments. Furthermore, the tool can aid in effectively analyzing actual vibration and shock data to simulate a downhole test environment.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Drilling and Well Engineering · Tunneling and Rock Mechanics · Rock Mechanics and Modeling
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Geophysics and Information Technology, China University of Geosciences (Beijing) 1 , Beijing 100083, China
Institute of Geology and Geophysics, Chinese Academy of Sciences 2 , Beijing 100029, China
Aerospace Information Research Institute, Chinese Academy of Sciences 3 , Beijing 100094, China
Funding
National Science Foundation of China · National High Technology Research and Development Program of China
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