System and method to acquire ultra-long offset seismic data for full waveform inversion (FWI) using unmanned marine vehicle (UMV)
AssigneeWesternGeco L.L.C.
InventorsNicolae Moldoveanu, Denes Vigh, Surrinder Kapoor, Sudhir Pai
Life of this patent
Estimating the term…
Abstract
A system and method for acquiring seismic streamer data is provided. Embodiments may include performing a marine seismic survey using an unmanned marine vessel having a power source configured to drive and provide propulsion to the unmanned marine vessel. Embodiments may further include acquiring one or more of long and ultra-long seismic survey data using a multi-dimensional seismic sensor array coupled with the unmanned marine vessel and providing the seismic survey data as a reduced data set that includes long and ultra long offsets.
Claims19
A system for acquiring seismic streamer data during a seismic streamer survey, comprising:
- an unmanned marine vessel having a power source configured to drive and provide propulsion to the unmanned marine vessel;
- a multi-dimensional seismic sensor array coupled with the unmanned marine vessel, wherein the multi-dimensional seismic sensor array is configured to acquire ultra-long seismic survey data, wherein ultra-long seismic survey data includes data having an offset greater than 20 km;
- and
- a float associated with the unmanned marine vessel including a global positioning system (“GPS”) receiver and a recording system configured to store and transmit the seismic survey data for a full waveform inversion (“FWI”).
A method for acquiring seismic streamer data during a seismic streamer survey, comprising:
- performing a marine seismic survey using an unmanned marine vessel having a power source configured to drive and provide propulsion to the unmanned marine vessel;
- acquiring ultra-long offsets seismic survey data using a multi-dimensional seismic sensor array coupled with the unmanned marine vessel, wherein ultra-long seismic survey data includes data having an offset greater than 20 km;
- and
- providing the seismic survey data for a full waveform inversion (“FWI”) as a reduced data set that includes ultra long offsets.
An Ocean Bottom Node for acquiring seismic streamer data comprising:
- a housing;
- and
- a multi-dimensional seismic sensor array coupled with the Ocean Bottom Node, wherein the multi-dimensional seismic sensor array is configured to acquire ultra-long seismic survey data, wherein ultra-long seismic survey data includes data having an offset greater than 20 km, wherein the multi-dimensional sensor array includes at least one of a pressure sensor, a vertical geophone, a horizontal geophone, a recording system, and one or more accelerometers configured to measure the acceleration of particle velocity in a plurality of directions.
Dependencies are inferred from the claim text.