no code implementations • 16 Jul 2023 • Yuanyuan Yang, Claire Birnie, Tariq Alkhalifah
Microseismic event detection and location are two primary components in microseismic monitoring, which offers us invaluable insights into the subsurface during reservoir stimulation and evolution.
no code implementations • 13 Jul 2023 • Claire Birnie, Matteo Ravasi
The presence of coherent noise in seismic data leads to errors and uncertainties, and as such it is paramount to suppress noise as early and efficiently as possible.
no code implementations • 25 Sep 2022 • Claire Birnie, Tariq Alkhalifah
To preempt the network's ability to predict the signal and reduce its opportunity to learn the noise properties, we propose an initial, supervised training of the network on a frugally-generated synthetic dataset prior to fine-tuning in a self-supervised manner on the field dataset of interest.
no code implementations • 15 Sep 2021 • Claire Birnie, Matteo Ravasi, Tariq Alkhalifah, Sixiu Liu
Illustrated on synthetic examples, the blind-spot network is shown to be an efficient denoiser of seismic data contaminated by random noise with minimal damage to the signal; therefore, providing improvements in both the image domain and down-the-line tasks, such as inversion.
no code implementations • 25 Feb 2021 • Claire Birnie, Haithem Jarraya, Fredrik Hansteen
Typically, training data is preloaded into memory prior to training, a particular challenge for seismic applications where data is typically four times larger than that used for standard image processing tasks (float32 vs. uint8).
no code implementations • 5 Dec 2020 • Claire Birnie, Fredrik Hansteen
The most common detection procedure remains the Short-Term-Average to Long-Term-Average (STA/LTA) trigger despite its common pitfalls of requiring a signal-to-noise ratio greater than one and being highly sensitive to the trigger parameters.