Increasing the length of a land streamer by multiple shots

Hanafy, Sherif M.

doi:10.1190/segam2019-3215589.1

Cited by 2 publications

(1 citation statement)

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“…To reach deeper depths without increasing the length of the land-streamer, Hanafy showed in [42] how the length of a land-streamer can be effectively doubled or tripled if two or three seismic sources are used at offsets equal to the length of the land-streamer. Hence, the depth of penetration will be increased without increasing the logistics requirements.…”

Section: Land-streamer Designmentioning

confidence: 99%

Land-Streamer vs. Conventional Seismic Data for High-Resolution Near-Surface Surveys

Hanafy

2022

Applied Sciences

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Near-surface high-resolution seismic mapping is very important in many applications such as engineering and environmental. However, the conventional setup of the seismic technique requires planting geophones, connecting cables, and then collecting all equipment after completing the survey, which is time-consuming. In this study, we suggest using a land-streamer setup rather than the conventional setup for fast, accurate, and high-resolution near-surface seismic surveys. Only one field data set is recorded using both the conventional and the land-streamer setups. The recorded data is then compared in terms of time, frequency, wavenumber domains, and acquisition time. Following this, we compared the accuracy of the subsurface mapping of both setups using a synthetic example. The results show that the conventional setup can reach deeper depths but with lower accuracy, where the errors in imaging the local anomalies’ widths and thicknesses are 77% to 145% and 35% to 50%, respectively. The land-streamer setup provides accurate near-surface results but shallower penetration depth, here the errors in the anomalies’ widths and thicknesses are 5% to 12% and 10% to 20%, respectively.

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Section: Land-streamer Designmentioning

confidence: 99%