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公开(公告)号：US10419018B2
公开(公告)日：2019-09-17
申请号：US15146590
申请日：2016-05-04
Applicant: Schlumberger Technology Corporation
Inventor： Yong Sun , Bo Yu , Sandra Reyes Ribera , Aldrick Garcia-Mayans
Abstract: Aspects of the disclosure can relate to a process for transmitting a pump-off pressure profile for formation integrity testing within a limited bandwidth. For example, a process may include measuring pump-off pressure data. The pump-off pressure data represents the pump-off pressure profile. The method also includes determining, from the pump-off pressure data, a pump-off pressure data portion corresponding to a formation integrity testing characteristic. The method also includes compressing pump-off pressure data portion with a compression protocol to produce compression bits. The compression bits representing the pump-off pressure data portion corresponding to the formation integrity testing characteristic. The method also includes transmitting, via a communication module, the compression bits to a computing device.
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公开(公告)号：US10125558B2
公开(公告)日：2018-11-13
申请号：US14710457
申请日：2015-05-12
Applicant: Schlumberger Technology Corporation
Inventor： Yong Sun , Bo Yu , Sandra Reyes , Aldrick Garcia-Mayans
Abstract: Aspects of the disclosure can relate to a method for transmitting a pump-off pressure profile within a limited bandwidth. For example, a method may include selecting a compression protocol based upon at least one of a time length associated with the pump-off pressure data, a relative mean-squared error associated with the pump-off pressure data, or a maximum error associated with the pump-off pressure data. The method also includes compressing pump-off pressure data with the compression protocol to produce compression bits. The compression bits represent the pump-off pressure profile. The method also includes transmitting, via a communication module, the compression bits to a computing device.
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公开(公告)号：US20170089195A1
公开(公告)日：2017-03-30
申请号：US14867125
申请日：2015-09-28
Applicant: Schlumberger Technology Corporation
Inventor： Bo Yu
IPC: E21B47/18
CPC classification number: E21B47/18
Abstract: A method for transmitting data from a downhole tool to a surface location includes running a downhole tool into a wellbore. The downhole tool includes a pressure sensor. An annulus pressure in the wellbore is measured at a first time, using the pressure sensor, to produce a first pressure measurement. The first pressure measurement is compressed to produce a reference sample. The reference sample is transmitted to the surface location. The annulus pressure in the wellbore is measured at a second time, using the pressure sensor, to produce a second pressure measurement. A difference between the first pressure measurement and the second pressure measurement is determined to produce a first delta pressure measurement. The first delta pressure measurement is compressed to produce a first compressed delta pressure measurement. The first compressed delta pressure measurement is transmitted to the surface location.
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公开(公告)号：US20170170842A1
公开(公告)日：2017-06-15
申请号：US15146590
申请日：2016-05-04
Applicant: Schlumberger Technology Corporation
Inventor： Yong Sun , Bo Yu , Sandra Reyes Ribera , Aldrick Garcia-Mayans
CPC classification number: H03M7/30 , E21B21/08 , E21B47/06 , E21B47/12 , E21B47/18 , E21B49/00 , E21B49/008
Abstract: Aspects of the disclosure can relate to a process for transmitting a pump-off pressure profile for formation integrity testing within a limited bandwidth. For example, a process may include measuring pump-off pressure data. The pump-off pressure data represents the pump-off pressure profile. The method also includes determining, from the pump-off pressure data, a pump-off pressure data portion corresponding to a formation integrity testing characteristic. The method also includes compressing pump-off pressure data portion with a compression protocol to produce compression bits. The compression bits representing the pump-off pressure data portion corresponding to the formation integrity testing characteristic. The method also includes transmitting, via a communication module, the compression bits to a computing device.
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公开(公告)号：US20170114634A1
公开(公告)日：2017-04-27
申请号：US14919426
申请日：2015-10-21
Applicant: Schlumberger Technology Corporation
Inventor： Bo Yu , Kai Hsu , Julian Pop , Kentaro Indo
IPC: E21B47/12
CPC classification number: E21B47/123 , E21B47/102 , E21B47/18
Abstract: A method for transmitting data from a downhole tool is provided. In one embodiment, the method includes acquiring data for a formation fluid through downhole fluid analysis with a downhole tool in a well. The acquired data can include optical spectrum data measured with a spectrometer and other data. The method also includes generating time blocks of the acquired data and transmitting the time blocks from the downhole tool. More particularly, generating the time blocks may include compressing at least some of the optical spectrum data according to a first compression technique and compressing at least some of the other data according to one or more additional compression techniques. The compressed data can be packaged into the time blocks such that at least some of the time blocks include both compressed optical spectrum data and compressed other data for the formation fluid. Additional methods, systems, and devices are also disclosed.
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Patent Agency Ranking
公开(公告)号：US09835026B2
公开(公告)日：2017-12-05
申请号：US14867125
申请日：2015-09-28
Applicant: Schlumberger Technology Corporation
Inventor： Bo Yu
IPC: E21B47/18
CPC classification number: E21B47/18
Abstract: A method for transmitting data from a downhole tool to a surface location includes running a downhole tool into a wellbore. The downhole tool includes a pressure sensor. An annulus pressure in the wellbore is measured at a first time, using the pressure sensor, to produce a first pressure measurement. The first pressure measurement is compressed to produce a reference sample. The reference sample is transmitted to the surface location. The annulus pressure in the wellbore is measured at a second time, using the pressure sensor, to produce a second pressure measurement. A difference between the first pressure measurement and the second pressure measurement is determined to produce a first delta pressure measurement. The first delta pressure measurement is compressed to produce a first compressed delta pressure measurement. The first compressed delta pressure measurement is transmitted to the surface location.
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公开(公告)号：US20150330168A1
公开(公告)日：2015-11-19
申请号：US14710457
申请日：2015-05-12
Applicant: Schlumberger Technology Corporation
Inventor： Yong Sun , Bo Yu , Sandra Reyes , Aldrick Garcia-Mayans
Abstract: Aspects of the disclosure can relate to a method for transmitting a pump-off pressure profile within a limited bandwidth. For example, a method may include selecting a compression protocol based upon at least one of a time length associated with the pump-off pressure data, a relative mean-squared error associated with the pump-off pressure data, or a maximum error associated with the pump-off pressure data. The method also includes compressing pump-off pressure data with the compression protocol to produce compression bits. The compression bits represent the pump-off pressure profile. The method also includes transmitting, via a communication module, the compression bits to a computing device.
Abstract translation: 本公开的方面可以涉及在有限带宽内发送泵送压力分布的方法。 例如，一种方法可以包括：基于与排水压力数据相关联的时间长度，与抽出压力数据相关联的相对均方误差或与 抽出压力数据。 该方法还包括用压缩协议压缩泵送压力数据以产生压缩比特。 压缩位代表泵抽压力分布。 该方法还包括经由通信模块将压缩比特发送到计算设备。
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公开(公告)号：US20150078625A1
公开(公告)日：2015-03-19
申请号：US14549408
申请日：2014-11-20
Applicant: Schlumberger Technology Corporation
Inventor： Bo Yu , Han Yu , Remi Hutin , Yong Sun
CPC classification number: E21B47/12 , E21B33/1208 , G06K9/0063 , H03M7/3059 , H03M7/3068 , H03M7/3077 , H03M7/40
Abstract: Data transmission from a bottom hole assembly (BHA) includes obtaining a scan from multiple scans forming a downhole data log of a borehole within a subterranean formation. The scan includes a sequence of data items from a sensor in the BHA located in the borehole. Each data item corresponds to an azimuth angle of the sensor. Further, compressed scan data is generated from the sequence of data items on a per-scan basis, and transmitted, using a pre-determined borehole telemetry, to a surface unit.
Abstract translation: 来自底部孔组件（BHA）的数据传输包括从形成地下地层内的钻孔的井下数据对数的多次扫描获得扫描。 该扫描包括来自位于钻孔中的BHA中的传感器的数据项序列。 每个数据项对应于传感器的方位角。 此外，从每个扫描的数据项序列生成压缩扫描数据，并使用预定的井眼遥测发送到表面单元。
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公开(公告)号：US20140286538A1
公开(公告)日：2014-09-25
申请号：US13850243
申请日：2013-03-25
Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
Inventor： Bo Yu , Han Yu , Remi Hutin , Yong Sun
CPC classification number: E21B47/12 , E21B33/1208 , G06K9/0063 , H03M7/3059 , H03M7/3068 , H03M7/3077 , H03M7/40
Abstract: Data transmission from a bottom hole assembly (BHA) includes obtaining a scan from multiple scans forming a downhole data log of a borehole within a subterranean formation. The scan includes a sequence of data items from a sensor in the BHA located in the borehole. Each data item corresponds to an azimuth angle of the sensor. Further, compressed scan data is generated from the sequence of data items on a per-scan basis, and transmitted, using a pre-determined borehole telemetry, to a surface unit.
Abstract translation: 来自底部孔组件（BHA）的数据传输包括从形成地下地层内的钻孔的井下数据对数的多次扫描获得扫描。 该扫描包括来自位于钻孔中的BHA中的传感器的数据项序列。 每个数据项对应于传感器的方位角。 此外，从每个扫描的数据项序列生成压缩扫描数据，并使用预定的井眼遥测发送到表面单元。
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公开(公告)号：US09932824B2
公开(公告)日：2018-04-03
申请号：US14919426
申请日：2015-10-21
Applicant: Schlumberger Technology Corporation
Inventor： Bo Yu , Kai Hsu , Julian Pop , Kentaro Indo
CPC classification number: E21B47/123 , E21B47/102 , E21B47/18
Abstract: A method for transmitting data from a downhole tool is provided. In one embodiment, the method includes acquiring data for a formation fluid through downhole fluid analysis with a downhole tool in a well. The acquired data can include optical spectrum data measured with a spectrometer and other data. The method also includes generating time blocks of the acquired data and transmitting the time blocks from the downhole tool. More particularly, generating the time blocks may include compressing at least some of the optical spectrum data according to a first compression technique and compressing at least some of the other data according to one or more additional compression techniques. The compressed data can be packaged into the time blocks such that at least some of the time blocks include both compressed optical spectrum data and compressed other data for the formation fluid. Additional methods, systems, and devices are also disclosed.
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