Static Pressure Monitoring On Offshore Platform

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Requirements

ISA 100 WirelessThe client wanted to monitor the pressure of the gas well at offshore platform remotely to reduce maintenance cost and increase safety of maintenance personnel.

offshore platform

Benefits

The client can monitor the pressure remotely and eliminate the visit to the platforms for monitoring the pressure.

  • Maintenance cost will be reduced
  • Safety of maintenance personnel will be enhanced.
  • Productivity will be increased by early detection of pressure change.

Challenge

Long range wireless communication without repeaters.

  • Impossible to place repeater between offshore platforms.
  • Needs to deal with height pattern variance caused by tidal level change.

Solution

To monitor pressure of nine wells with Yokogawa plant-wide field wireless system consists of YFGW410 and YFGW510 using star topology network.

  • Omni-directional high gain antenna is used to get long communication range.
  • Battery operated pressure transmitters are used. No need for electric power source at well platform.
  • Two access points are installed at different height to prevent for height pattern variance.

Equipment List

EJX530B (Wireless Pressure Transmitter) x 9
YFGW510 (Field Wireless Access Point) x 2
YFGW410 (Field Wireless Management Station) x 2

Conclusion

  • Eliminating the visit to the platforms reduced operation cost drastically.
  • Safety of personnel was enhanced due to no need for travel over the seas.
  • Productivity enhancement is expected due to early pressure change detection.

The long range communication capability of Yokogawa's plant-wide field wireless system enables this offshore application.

Currently Yokogawa is working with customer to apply similar systems to up to hundreds of offshore wells.

Illustration: Height Pattern at Offshore

EJX series Wireless Pressure Transmitter
EJX series Wireless
Pressure Transmitter

Height pattern is relationship between signal strength and height of antenna. This pattern is generated by interaction between radio waves arrive via different paths. Major factor of height pattern at offshore are radio waves reflected on sea surface and through direct path.

Height pattern at offshore

Usually height pattern at offshore periodically changes because relative height of antenna from sea surface varies associated with tidal level.

行业

相关产品&解决方案

EJX530B无线直插式表压变送器

高性能无线绝对压力和表压变送器EJX510B和EJX530B具有单晶硅谐振传感器,适用于测量液体、气体或蒸气压力。

YFGW410现场无线管理站

YFGW410现场无线管理站以国际自动化协会(ISA)的工业自动化无线通信标准ISA100.11a为基准。该产品具有符合ISA100.11a标准的系统管理/安全管理/网关功能,与现场无线接入点(YFGW510)和/或现场无线媒体转换器(YFGW610)组合,构成现场无线系统。

YFGW510/YFGW520现场无线接入点

YFGW510/YFGW520现场无线接入点以国际自动化协会(ISA)的工业自动化无线通信标准ISA100.11a为基准。该产品具有符合ISA标准的主干路由器功能,与现场无线管理站(YFGW410)和/或现场无线媒体转换器(YFGW610)组合,构成现场无线系统。

现场无线

无线解决方案的灵活性可减少对基础设施的投入,同时可以对工厂运营有更深入的了解。

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