公开(公告)号：US09759837B2

公开(公告)日：2017-09-12

申请号：US15028821

申请日：2014-11-11

Applicant: Sercel-GRC Corporation

Inventor： Guillaume Grente ,  Anthony Thornberry ,  David Funkhouser ,  Bryon Western

IPC: G01V3/00 ,  G01V11/00 ,  E21B47/12 ,  E21B43/12 ,  H02H7/08 ,  H02H9/04

CPC classification number: G01V11/002 ,  E21B43/128 ,  E21B47/122 ,  H02H7/08 ,  H02H9/04

Abstract: This invention relates to a data communication system/method for use in a downhole application wherein electrical energy is supplied over a multiple-conductor power cable to a motor assembly of a downhole tool such as an electric submersible pump. A power leg coupling interfaces a surface controller of a downhole instrument to the conductors of the tool's power cable. Uplink communication of telemetry data occurs via current modulation generated by the downhole instrument and interpreted by a surface controller. Downlink communication of downhole instrument data occurs over a different communication scheme supported by the downhole and surface controllers. Downlink communication scheme provides a supply of power to the downhole instrument. Protection of downhole electronics and continuity of communication is ensured in the event of a ground fault on the power cable. Both downlink and uplink communication frequencies are adaptive based on frequencies and voltages present on the power cable.

公开(公告)号：US20160259086A1

公开(公告)日：2016-09-08

申请号：US15028821

申请日：2014-11-11

Applicant: SERCEL-GRC CORPORATION

Inventor： Guillaume Grente ,  Anthony Thornberry ,  David Funkhouser ,  Bryon Western

IPC: G01V11/00 ,  H02H9/04

CPC classification number: G01V11/002 ,  E21B43/128 ,  E21B47/122 ,  H02H7/08 ,  H02H9/04

Abstract: This invention relates to a data communication system/method for use in a downhole application wherein electrical energy is supplied over a multiple-conductor power cable to a motor assembly of a downhole tool such as an electric submersible pump. A power leg coupling interfaces a surface controller of a downhole instrument to the conductors of the tool's power cable. Uplink communication of telemetry data occurs via current modulation generated by the downhole instrument and interpreted by a surface controller. Downlink communication of downhole instrument data occurs over a different communication scheme supported by the downhole and surface controllers. Downlink communication scheme provides a supply of power to the downhole instrument. Protection of downhole electronics and continuity of communication is ensured in the event of a ground fault on the power cable. Both downlink and uplink communication frequencies are adaptive based on frequencies and voltages present on the power cable.

Abstract translation: 本发明涉及一种在井下应用中使用的数据通信系统/方法，其中电能通过多导体电力电缆提供给诸如电潜泵的井下工具的马达组件。 动力腿联接将井下仪器的表面控制器连接到工具电源线的导体。 遥测数据的上行通信通过由井下仪器产生的并由表面控制器解释的当前调制发生。 井下仪表数据的下行链路通信由井下和表面控制器支持的不同通信方案进行。 下行链路通信方案为井下仪器提供电力供应。 在电源线出现接地故障的情况下，可确保井下电子设备的保护和通信的连续性。 基于电力电缆上存在的频率和电压，下行链路和上行链路通信频率都是自适应的。