Method for attenuating multiples
    1.
    发明授权

    公开(公告)号:US09977143B2

    公开(公告)日:2018-05-22

    申请号:US14846693

    申请日:2015-09-04

    CPC classification number: G01V1/364 G01V1/38 G01V2210/324 G01V2210/56

    Abstract: One embodiment of the present disclosure includes a method for processing seismic data comprising the steps of receiving data representing seismic energy gathered from a formation by a plurality of seismic receivers, wherein the data include primary and multiple data. A copy of the received data is created and compensated to reduce amplitude attenuation effects due to transmission and absorption losses. A multiple prediction algorithm is applied to the received and compensated data to obtain a multiple data prediction. The multiple data prediction is subtracted from the received data to obtain primary data. The primary data is processed to reduce attenuation effects in the received data.

    Method for predicting multiples in survey data

    公开(公告)号:US10416326B2

    公开(公告)日:2019-09-17

    申请号:US14975076

    申请日:2015-12-18

    Abstract: A method includes receiving a seismic dataset from a survey, wherein the seismic dataset represents a portion of a subsurface geological formation and includes primary and multiple data. The method further includes the steps of conditioning the seismic dataset and estimating a model of the multiple data in the conditioned seismic dataset based on a user-defined parameter to derive a primary data set. Further, the method includes the steps of computing a velocity model from the primary data set using the user-defined parameter and updating the estimated multiple model based at least on a modification of the user-defined parameter. In addition, the method includes the steps of recomputing the primary data and the velocity model based on the modified user-defined parameter and generating an image of the primary data.

    System and methodology for orientation of a borehole seismic source

    公开(公告)号:US10222506B2

    公开(公告)日:2019-03-05

    申请号:US14847004

    申请日:2015-09-08

    Abstract: A technique generates seismic data that may be analyzed. A combination sensor is operated and deployed in a borehole to obtain orientation data, such as data related to the local magnetic field and a log of the magnetic field direction in the borehole. Following the combination sensor, at least one multi-component seismic source is deployed downhole into the borehole. The at least one multi-component seismic source comprises sensors, such as an inclinometer and a magnetometer. Data from the combination sensor and from the at least one multi-component seismic source is processed to determine an absolute orientation of the at least one multi-component seismic source.

    METHOD FOR PREDICTING MULTIPLES IN SURVEY DATA

    公开(公告)号:US20170176612A1

    公开(公告)日:2017-06-22

    申请号:US14975076

    申请日:2015-12-18

    Abstract: A method includes receiving a seismic dataset from a survey, wherein the seismic dataset represents a portion of a subsurface geological formation and includes primary and multiple data. The method further includes the steps of conditioning the seismic dataset and estimating a model of the multiple data in the conditioned seismic dataset based on a user-defined parameter to derive a primary data set. Further, the method includes the steps of computing a velocity model from the primary data set using the user-defined parameter and updating the estimated multiple model based at least on a modification of the user-defined parameter. In addition, the method includes the steps of recomputing the primary data and the velocity model based on the modified user-defined parameter and generating an image of the primary data.

    System and Methodology for Orientation of A Borehole Seismic Source
    6.
    发明申请
    System and Methodology for Orientation of A Borehole Seismic Source 审中-公开
    井眼地震源定位系统与方法

    公开(公告)号:US20160091626A1

    公开(公告)日:2016-03-31

    申请号:US14847004

    申请日:2015-09-08

    CPC classification number: G01V11/00

    Abstract: A technique generates seismic data that may be analyzed. A combination sensor is operated and deployed in a borehole to obtain orientation data, such as data related to the local magnetic field and a log of the magnetic field direction in the borehole. Following the combination sensor, at least one multi-component seismic source is deployed downhole into the borehole. The at least one multi-component seismic source comprises sensors, such as an inclinometer and a magnetometer. Data from the combination sensor and from the at least one multi-component seismic source is processed to determine an absolute orientation of the at least one multi-component seismic source.

    Abstract translation: 一种技术可以产生可能被分析的地震数据。 组合传感器被操作并部署在钻孔中以获得诸如与局部磁场相关的数据和井眼中磁场方向对数的取向数据。 在组合传感器之后,至少一个多分量地震源被部署在钻井中。 所述至少一个多分量地震源包括传感器,例如倾角计和磁力计。 来自组合传感器和来自至少一个多分量地震源的数据被处理以确定至少一个多分量地震源的绝对取向。

    Determining Seismic Sensor Orientation in a Wellbore
    7.
    发明申请
    Determining Seismic Sensor Orientation in a Wellbore 有权
    确定井筒中的地震传感器定向

    公开(公告)号:US20150337647A1

    公开(公告)日:2015-11-26

    申请号:US14655719

    申请日:2013-12-17

    Abstract: A well-logging tool includes a magnetic field logging tool and a borehole seismic array, which includes a plurality of seismic sensor devices coupled together in series. Each seismic sensor device includes a sensor housing and at least one seismic sensor carried by the sensor housing. A magnetometer is carried by the sensor housing to sense the local magnetic field. A controller cooperates with the magnetic field logging tool to generate a log of the local magnetic field relative to the true earth geographic pole. The controller cooperates with the borehole seismic array to determine an orientation of each seismic sensor device based upon the respective sensed local magnetic field and log of the local magnetic field relative to the earth geographic pole.

    Abstract translation: 测井工具包括磁场测井工具和井眼地震阵列,其包括串联耦合在一起的多个地震传感器装置。 每个地震传感器装置包括传感器外壳和由传感器外壳承载的至少一个地震传感器。 磁力仪由传感器外壳承载以感测局部磁场。 控制器与磁场测井工具协同工作,以产生相对于真实的地球极点的局部磁场的对数。 控制器与钻孔地震阵列配合,以基于相应的感测到的局部磁场和相对于地球地球极的局部磁场的对数确定每个地震传感器装置的取向。

    Neutrally-buoyant borehole investigation tools and methods
    8.
    发明授权
    Neutrally-buoyant borehole investigation tools and methods 有权
    中性浮力钻孔调查工具和方法

    公开(公告)号:US09038765B2

    公开(公告)日:2015-05-26

    申请号:US13909060

    申请日:2013-06-03

    CPC classification number: G01V1/40 G01V1/42

    Abstract: Neutrally-buoyant tools for seismic data collection are provided that may range from several hundred meters to several kilometers in length and have integrated sensors which move along with the borehole fluid in response to a passing seismic wave. The disclosure also provides methods of deploying neutrally-buoyant tools, which includes using a tractor, adding a weight or both to the tool in order to overcome the difficulty of lowering a neutrally buoyant tool into a borehole, and optionally occasionally clamping the tool to the borehole to alleviate tension in the tool. This disclosure also provides methods of acquiring seismic data, which involves positioning a neutrally-buoyant tool in a borehole such that the tool is able to move relatively freely along with the borehole fluid in response to a seismic wave passing through the fluid, firing a seismic source, and using the sensors to collect seismic data generated thereby.

    Abstract translation: 提供用于地震数据采集的中性浮力工具,其长度可以在几百米到几公里之间,并且具有响应于通过的地震波与钻孔流体一起移动的集成传感器。 本公开还提供了部署中性浮力工具的方法,其包括使用拖拉机,向工具添加重物或两者以克服将中性浮力工具降低到钻孔中的难度,并且可选地偶尔将工具夹紧到工具 钻孔以减轻工具的张力。 本公开还提供了获取地震数据的方法,其涉及将中性浮力工具定位在钻孔中,使得工具能够响应于穿过流体的地震波而与井眼流体相对自由地移动,发射地震 来源,并使用传感器收集由此产生的地震数据。

    Neutrally-Buoyant Borehole Investigation Tools and Methods
    9.
    发明申请
    Neutrally-Buoyant Borehole Investigation Tools and Methods 有权
    中性浮力钻孔调查工具和方法

    公开(公告)号:US20130343157A1

    公开(公告)日:2013-12-26

    申请号:US13909060

    申请日:2013-06-03

    CPC classification number: G01V1/40 G01V1/42

    Abstract: The disclosure provides neutrally-buoyant tools for seismic data collection. The tools may range from several hundred meters to several kilometers in length and have integrated sensors which move along with the borehole fluid in response to a passing seismic wave. The disclosure also provides methods of deploying neutrally-buoyant tools, which includes using a tractor, adding a weight or both to the tool in order to overcome the difficulty of lowering a neutrally buoyant tool into a borehole, and optionally occasionally clamping the tool to the borehole to alleviate tension in the tool. This disclosure also provides methods of acquiring seismic data, which involves positioning a neutrally-buoyant tool in a borehole such that the tool is able to move relatively freely along with the borehole fluid in response to a seismic wave passing through the fluid, firing a seismic source, and using the sensors to collect seismic data generated thereby.

    Abstract translation: 本公开提供了用于地震数据采集的中性浮力工具。 这些工具的长度可以从几百米到几公里,并且具有响应于通过的地震波而与井眼流体一起移动的集成的传感器。 本公开还提供了部署中性浮力工具的方法,其包括使用拖拉机,向工具添加重物或两者以克服将中性浮力工具降低到钻孔中的难度,并且可选地偶尔将工具夹紧到工具 钻孔以减轻工具的张力。 本公开还提供了获取地震数据的方法,其涉及将中性浮力工具定位在钻孔中,使得工具能够响应于穿过流体的地震波而与井眼流体相对自由地移动,发射地震 来源,并使用传感器收集由此产生的地震数据。

    A BOREHOLE SEISMIC TOOL AND METHOD OF SEISMIC SURVEYING
    10.
    发明申请
    A BOREHOLE SEISMIC TOOL AND METHOD OF SEISMIC SURVEYING 审中-公开
    井下地震工具及地震勘测方法

    公开(公告)号:US20160320511A1

    公开(公告)日:2016-11-03

    申请号:US15108232

    申请日:2013-12-25

    CPC classification number: G01V1/42 G01V2001/526

    Abstract: The disclosure provides a borehole tool for seismic data collection. The tool comprises a cable to be positioned within a borehole and at least one sensor for measuring seismic signals mounted on the cable. The sensors provide measurements of particle motion (velocity or acceleration) perpendicular to an axis of the borehole. The disclosure also provides methods of seismic surveying, which involves positioning the tool in the borehole, firing a seismic source generating a seismic wave and measuring particle motion associated with the passing seismic wave perpendicular to an axis of the borehole using the at least one sensor for measuring particle motion.

    Abstract translation: 本公开提供了一种用于地震数据采集的钻孔工具。 该工具包括位于钻孔内的电缆和用于测量安装在电缆上的地震信号的至少一个传感器。 传感器提供垂直于钻孔轴线的粒子运动(速度或加速度)的测量。 本公开还提供了地震测量方法,其涉及将工具定位在井眼中,发射产生地震波的地震源,并使用至少一个传感器测量与穿过井眼的轴垂直的通过的地震波相关联的粒子运动 测量粒子运动。

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