As the benefit of distributed acoustic sensing (DAS) is proven in new applications from seismic data acquisition, reservoir and frac monitoring, and flow characterization, there is a need to optimize DAS survey design and acquisition parameters for each application. A fiber-optic test well was drilled to facilitate precision studies of the impact of acquisition choices on data quality. The effect of fiber type, packaging, and length, as well as the impact of acquisition parameters on data quality, has been investigated. To date, these experiments have produced nearly one thousand vertical seismic profile datasets with precision timing from common energy sources. An algorithm for automatic extraction of signal and noise spectra from these data has been developed to quantitatively characterize the effect of gauge length and leading cable length on the signal-to-noise ratio (SNR).

Monday, October 12, 2020

Session Start Time: 1:50 PM

Presentation Time: 2:40 PM

Location: Poster Station 6

Presentation Type: Poster

Keywords:
vertical seismic profile, reservoir surveillance, production control, production logging, upstream oil & gas, lead-in cable length, well design, vsp shot, acquisition variable, production monitoring
Subjects:
Hydraulic Fracturing, Well & Reservoir Surveillance and Monitoring, Reservoir Characterization, Information Management and Systems, Production logging, Near-well and vertical seismic profiles, Seismic processing and interpretation
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2020. Society of Exploration Geophysicists
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