Predicting multiples in survey data

    公开(公告)号:US10054704B2

    公开(公告)日:2018-08-21

    申请号:US14296169

    申请日:2014-06-04

    IPC分类号: G01V1/38 G01V1/36

    CPC分类号: G01V1/36 G01V1/38 G01V2210/56

    摘要: Data representing a first multiple is predicted, based on first survey data for a target structure, using a multidimensional model of a layer in which the first multiple occurs. Modified survey data is produced by performing a subtraction of the predicted data representing the first multiple from the first survey data. Based on the modified survey data, data representing a second multiple is predicted using the multidimensional model.

    Seismic data recorder charging and data offload

    公开(公告)号:US10054701B2

    公开(公告)日:2018-08-21

    申请号:US14489193

    申请日:2014-09-17

    发明人: Einar Holst

    摘要: A system for storing seismic data recording units. The system may include a storage unit for storing the seismic data recording units. The system may also include a storage container disposed inside the storage unit. The storage container may define a volume of space in which the seismic data recording units are stored. The system may also include a cable coupled to one of the seismic data recording units. The cable may transfer seismic data from the one of the seismic data recording units to the storage unit.

    Multi-vessel coil shooting acquisition

    公开(公告)号:US09857491B2

    公开(公告)日:2018-01-02

    申请号:US14643596

    申请日:2015-03-10

    IPC分类号: G01V1/38

    CPC分类号: G01V1/3808 G01V1/3861

    摘要: Various implementations described herein are directed to a marine seismic acquisition system. The marine seismic acquisition system may include a first vessel towing a first source array and a first plurality of streamers. The first vessel is configured to travel along a first coil path. The marine seismic acquisition system may include a second vessel towing a second source array and a second plurality of streamers. The second vessel is configured to travel along a second coil path. The marine seismic acquisition system may include a third vessel towing a third source array and a third plurality of streamers. The third vessel is configured to travel along a third coil path. The marine seismic acquisition system may also include a fourth vessel towing a fourth source array and a fourth plurality of streamers. The fourth vessel is configured to travel along a fourth coil path.

    Simultaneous marine vibrators
    64.
    发明授权

    公开(公告)号:US09753163B2

    公开(公告)日:2017-09-05

    申请号:US14366255

    申请日:2013-01-11

    IPC分类号: G01V1/38 G01V1/04 G01V1/00

    摘要: Methods and apparatuses for acquiring marine seismic data to generate images or determine properties of an interior section of the Earth using simultaneous marine vibrator sweeps and methods for processing the acquired seismic data. Phase of sweeps produced by the marine vibrator(s) are controlled to provide for removal of crosstalk. The phases between marine vibrator sweeps may be random or controlled to have a predetermined/desired phase difference. The predetermined phases may be determined to minimize the crosstalk between sweeps based on known seismic velocity of the survey area.

    Iterative stacking of seismic image partitions

    公开(公告)号:US09726772B2

    公开(公告)日:2017-08-08

    申请号:US14515950

    申请日:2014-10-16

    IPC分类号: G06K9/00 G01V1/36

    CPC分类号: G01V1/362 G01V2210/322

    摘要: Systems, media, and methods for processing seismic data are disclosed. For example, in one embodiment, the method may include receiving a plurality of partial image partitions of a migrated seismic image, and stacking the plurality of partial image partitions such that a first image is generated. The method may also include aligning the plurality of partial image partitions based at least partially on the first image. Aligning may include adjusting at least one of the plurality of partial image partitions and generating a displacement field. The method may also include, based at least in part on the displacement field, stacking the plurality of aligned partial image partitions to generate a second image. The method may further include based at least in part on the second image, realigning the plurality of aligned partial image partitions.

    Deghosting using measurement data from seismic sensors

    公开(公告)号:US09709688B2

    公开(公告)日:2017-07-18

    申请号:US14663451

    申请日:2015-03-19

    发明人: Nicolas Goujon

    IPC分类号: G01V1/36 G01V1/18 G01V1/38

    摘要: Measurement data is received from first and second seismic sensors, where the first and second seismic sensors are oriented in opposite directions. Each of the first and second seismic sensors has a sensing element responsive to pressure and particle motion. The signals can be combined to remove the particle motion component of the measurement data and obtain pressure-only data. Alternatively, the signals can be combined to deghost the received measurement data.

    System and method for seismic streamer control
    67.
    发明授权
    System and method for seismic streamer control 有权
    地震拖缆控制系统及方法

    公开(公告)号:US09581714B2

    公开(公告)日:2017-02-28

    申请号:US14288597

    申请日:2014-05-28

    IPC分类号: G01V1/38

    摘要: A control system for use in a marine seismic survey is provided. The system may include one or more processors configured to receive a desired position for one or more seismic streamers during the marine seismic survey. The one or more processors may be further configured to determine a current position for the one or more seismic streamers and to adjust a position of a steering device on each streamer, based upon, at least in part, a comparison between the current position of the one or more seismic streamers and the desired position of the one or more seismic streamers.

    摘要翻译: 提供了一种用于海洋地震勘测的控制系统。 该系统可以包括被配置为在海洋地震勘测期间接收一个或多个地震拖缆的期望位置的一个或多个处理器。 所述一个或多个处理器还可被配置为至少部分地基于所述一个或多个地震拖缆的当前位置之间的比较来确定所述一个或多个地震拖缆的当前位置并且调整每个拖缆上的转向装置的位置 一个或多个地震拖缆和一个或多个地震拖缆的期望位置。