Halliburton patented a method and system for identifying bonding between materials and tubing in a wellbore using an acoustic logging tool. The method involves broadcasting a signal, recording the result, transforming it to frequency domain, and computing decay rates to generate a bonding log. GlobalData’s report on Halliburton gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Halliburton, Oil well fracking was a key innovation area identified from patents. Halliburton's grant share as of March 2024 was 52%. Grant share is based on the ratio of number of grants to total number of patents.
Identifying bonding between material and tubing using acoustic logging tool
A recently granted patent (Publication Number: US11970931B2) discloses a method for acoustic logging in a wellbore. The method involves broadcasting a shaped signal with an acoustic logging tool to interact with the casing and material boundary, recording the result signal, identifying a cut-off time, transforming the signal to a frequency domain, selecting modes sensitive to bonding, computing decay rates, and converting them into a bonding log. The material can include air, water, borehole fluid, gas, oil, cement, or combinations thereof. The acoustic logging tool may have various transmitters like monopole, dipole, quadrupole, etc., and the result signal can be decomposed into different waveforms based on arrival times.
Furthermore, the patent also covers a well measurement system that includes an acoustic logging tool with transmitters and receivers, a conveyance, and an information handling system. This system can identify cut-off times, transform signals, select bonding-sensitive modes, compute decay rates, and convert them into bonding logs. The system can handle materials like air, water, borehole fluid, gas, oil, cement, or combinations thereof. It can decompose result signals, divide them into early and late arrival waveforms, apply filters, extract amplitudes, compute decay rates, and decompose signals into time-frequency domains for analysis. The system's flexibility in signal processing and analysis makes it a comprehensive tool for wellbore acoustic logging applications.
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GlobalData’s Patent Analytics tracks patent filings and grants from official offices around the world. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
