公开(公告)号：US20230034759A1

公开(公告)日：2023-02-02

申请号：US17875662

申请日：2022-07-28

Applicant: Reflection Marine Norge AS

Inventor： Håkon Aune ,  Thomas Elboth ,  Kambiz Iranpour ,  Arash Jafargandomi ,  Robert Montgomery Laws ,  Tore Andre Nilsen

IPC: G01V1/38

Abstract: Described herein is a method for acquiring data using a marine vibrator towed by a vessel, the method comprising: obtaining data comprising at least one nominal pre-plot position in a horizontal plane; monitoring a position of the marine vibrator in the and a speed of the vessel; determining an offset between the position of the marine vibrator and the nominal pre-plot position in the towing direction; based on the offset and the vessel speed, adjusting one or more survey parameters and driving the vibrator with a series of one or more sweeps so that a predetermined frequency in the sweep or a subsequent sweep is emitted when the position of the vibrator is within a maximum distance of the nominal pre-plot position.

公开(公告)号：US20210223429A1

公开(公告)日：2021-07-22

申请号：US17157835

申请日：2021-01-25

Applicant: REFLECTION MARINE NORGE AS

Inventor： David Fraser Halliday ,  Jon-Fredrik Hopperstad ,  Robert Montgomery Laws

IPC: G01V1/38

Abstract: Marine seismic surveys, including ocean bottom surveys, utilizing marine vibrator arrays that are capable of being driven in anti-phase to produce a directional source gradient. Marine seismic surveys may include activating the vibrator array to emit a plurality of radiation patterns with at least a first radiation pattern that has a first notch at a take-off angle that is not close to vertical. Some marine seismic surveys included emitting directive wavefields from two or more simultaneous seismic source arrays, where the two or more seismic source arrays have a phase that changes from shot-to-shot to allow simultaneous source separation of the directive wavefields.

公开(公告)号：US11774618B2

公开(公告)日：2023-10-03

申请号：US17157835

申请日：2021-01-25

Applicant: REFLECTION MARINE NORGE AS

Inventor： David Fraser Halliday ,  Jon-Fredrik Hopperstad ,  Robert Montgomery Laws

IPC: G01V1/38

CPC classification number: G01V1/3861 ,  G01V1/3808 ,  G01V2210/127

Abstract: Marine seismic surveys, including ocean bottom surveys, utilizing marine vibrator arrays that are capable of being driven in anti-phase to produce a directional source gradient. Marine seismic surveys may include activating the vibrator array to emit a plurality of radiation patterns with at least a first radiation pattern that has a first notch at a take-off angle that is not dose to vertical. Some marine seismic surveys included emitting directive wavefields from two or more simultaneous seismic source arrays, where the two or more seismic source arrays have a phase that changes from shot-to-shot to allow simultaneous source separation of the directive wavefields.

公开(公告)号：US20230408719A1

公开(公告)日：2023-12-21

申请号：US18240547

申请日：2023-08-31

Applicant: Reflection Marine Norge AS

Inventor： David Fraser Halliday ,  Jon-Fredrik Hopperstad ,  Robert Montgomery Laws

IPC: G01V1/38

CPC classification number: G01V1/3861 ,  G01V1/3808 ,  G01V2210/127

Abstract: Marine seismic surveys, including ocean bottom surveys, utilizing marine vibrator arrays that are capable of being driven in anti-phase to produce a directional source gradient. Marine seismic surveys may include activating the vibrator array to emit a plurality of radiation patterns with at least a first radiation pattern that has a first notch at a take-off angle that is not close to vertical. Some marine seismic surveys included emitting directive wavefields from two or more simultaneous seismic source arrays, where the two or more seismic source arrays have a phase that changes from shot-to-shot to allow simultaneous source separation of the directive wavefields.

公开(公告)号：US10928535B2

公开(公告)日：2021-02-23

申请号：US15571029

申请日：2016-05-02

Applicant: Reflection Marine Norge AS

Inventor： David Fraser Halliday ,  Jon-Fredrik Hopperstad ,  Robert Montgomery Laws

IPC: G01V1/38

Abstract: Marine seismic surveys, including ocean bottom surveys, utilizing marine vibrator arrays that are capable of being driven in anti-phase to produce a directional source gradient. Marine seismic surveys may include activating the vibrator array to emit a plurality of radiation patterns with at least a first radiation pattern that has a first notch at a take-off angle that is not close to vertical. Some marine seismic surveys includes emitting directive wavefields from two or more simultaneous seismic source arrays, where the two or more seismic source arrays have a phase that changes from shot-to-shot to allow simultaneous source separation of the directive wavefields.