Improving the SNR of SWD Data by Adjusting the Impact Energy of Drilling Tools

Abstract:

Seismic while drilling (SWD) technology, taking advantage of the vibration signal generated during the drill bit breaking rocks in drilling operations, has been used in the seismic explorations. Since the energy of signals produced by the seismic origin is weak while the noise jamming in the drilling site is strong, the signal-to-noise ratio (SNR) of collected SWD data is usually fairly low. In this paper, we focused on improving the SNR of SWD data via adjusting the impact energy of drilling tools. Based on the explanation of the working principle of SWD systems, the energy formation modes of three kinds of drilling tools were discussed. It was safe to expect that the hydraulic torque impactor could be applicable to improve the SNR of SWD data in evidence.

• Periodical: Applied Mechanics and Materials (Volumes 670-671)
• Pages: 1242-1246
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.670-671.1242
• Online since: October 2014
• Authors: Yao Kui Wang*, Rui Zhao Yang, Nan Chen, Tian Zhang, Ji Fu Liu
• Keywords: Drilling Tool, Impact Energy, Seismic Origin, Seismic While Drilling, Signal to Noise Ratio

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