公开(公告)号：US20150177397A1

公开(公告)日：2015-06-25

申请号：US14637363

申请日：2015-03-03

Applicant: WesternGeco L.L.C.

Inventor： Claudio Bagaini ,  Ian Moore

IPC: G01V1/02 ,  G01V1/30

CPC classification number: G01V1/02 ,  G01V1/005 ,  G01V1/30 ,  G01V2210/60

Abstract: A technique includes generating vibroseis sweeps for a vibroseis survey to produce seismic data acquired in response to seismic signals produced by the sweeps. The generation of the vibroseis sweeps including temporally arranging the sweeps into time-overlapping groups. The technique includes regulating a timing of the groups relative to each other based on a slip time. The technique also includes regulating a timing of the sweeps of each group such that consecutive sweep firings of each group are spaced apart by a time substantially less than the slip time.

Abstract translation: 一种技术包括产生用于可控震源测量的可控震源扫描，以产生响应由扫描产生的地震信号而获取的地震数据。 可变震源的产生扫描，包括将扫描时间安排在时间重叠的组中。 该技术包括基于滑动时间来调节组相对于彼此的定时。 该技术还包括调节每个组的扫描的定时，使得每个组的连续扫描发射间隔开大大小于滑动时间的时间。

公开(公告)号：US10061045B2

公开(公告)日：2018-08-28

申请号：US14328166

申请日：2014-07-10

Applicant: WesternGeco L.L.C.

Inventor： Claudio Bagaini

IPC: G01V1/00

Abstract: Methods and apparatuses for obtaining and/or processing slip sweep seismic survey data. The methods compute harmonic weight ratios using two types of data: 1) direct survey data where a harmonic sweep does not overlap with the fundamental component of responses of Earth interior and 2) another set of data representative of fundamental component of responses of Earth interior where the harmonic sweep does overlap with the fundamental component of responses of Earth interior. The set of data representative fundamental component of responses of Earth interior can be extracted from ground force measurements or a different sweep. The harmonic weight ratios using ground force measurements at overlapped frequencies may be calibrated with one or more harmonic weight ratios at non-overlapped frequencies.

公开(公告)号：US10048395B2

公开(公告)日：2018-08-14

申请号：US14158193

申请日：2014-01-17

Applicant: WESTERNGECO L.L.C.

Inventor： Nicolas Goujon ,  Pascal Edme ,  Artem Kashubin ,  Everhard Johan Muijzert ,  Claudio Bagaini

IPC: G01V1/18 ,  G01V1/30 ,  G01V1/16 ,  G01V13/00

Abstract: A seismic sensor device includes an elongated housing for placement at least partially into an earth surface. A plurality of particle motion sensors are contained in the elongated housing to measure translational data in a first direction, where plural pairs of the particle motion sensors are spaced apart along a second, different direction along a longitudinal axis of the elongated housing. A communication interface communicates the measured translational data to a computer system configured to compute a gradient based on respective differences of the measured translational data of the corresponding plural pairs of the particle motion sensors, and compute one or more of rotation data and divergence data using the gradient.

公开(公告)号：US20150168572A1

公开(公告)日：2015-06-18

申请号：US14564031

申请日：2014-12-08

Applicant: WesternGeco L.L.C.

Inventor： Claudio Bagaini ,  Einar Holst

IPC: G01V1/24 ,  G01V1/22

Abstract: A seismic data recording unit. The seismic data recording unit may include a housing and retractable arms coupled to the housing. The seismic data recording unit may include a respective seismic sensor coupled proximate the end of a retractable arm. The retractable arm may move from a position on or proximate the housing to a position away from the housing.

Abstract translation: 地震数据记录单元。 地震数据记录单元可以包括联接到壳体的壳体和可缩回臂。 地震数据记录单元可以包括靠近可伸缩臂的端部耦合的相应的地震传感器。 可伸缩臂可以从壳体上或靠近壳体的位置移动到远离壳体的位置。