WellMesh Network

The local area WellMesh network is designed to collect data from multiple sensors at a well site without the need for power or communications cabling between sensors. Robust, reliable data delivery is achieved using a low power ZigBee™ mesh network to communicate over the local well site area. To simplify commissioning and deployment, devices are self-configuring and form an efficient self-healing mesh.The WellMesh Hub gathers data from WellMesh Sensors and forwards it across the wide area FieldMesh network towards the Data Distribution Server. The WellMesh Hub is normally located on a pole or tower to achieve maximum radio range to other devices in the wide area FieldMesh Network.

FieldMesh Network

The wide area FieldMesh network is designed for applications which require a robust, reliable data delivery system over a wide area. To simplify commissioning and deployment, devices are self-configuring and form an efficient self-healing mesh. The network tolerates changes in the RF environment and the addition or removal of devices. Routing within the network is self-organising and supports point-to-point as well as central data collection or control.  The FieldMesh Wide Area Gateway gathers data from remote nodes in the wide area network. Data is passed via cable to the Field Hub Server. The FieldMesh Wide Area Gateway is normally located on a pole or tower to achieve maximum radio range to other devices in the FieldMesh Network .
 

Field Hub Server
  

A key component in data acquisition at the onshore oilfield is the Field Hub Server, which gathers data from the Wide Area Gateway of the FieldMesh network, and buffers it prior to sending it to the Data Distribution Server.

The Field Hub Server is designed for extended maintenance free operation in a remote oilfield environment. All critical components are duplicated to form a dual-redundant system. 

Often transmission links from the oilfield can be intermittent, particularly if the field is offshore, or in remote land locations. The Field Hub Server and the Data Distribution Server work as a “team” to manage whatever bandwidth is available, whenever it is available, to get the data back to base, reliably and without unnecessary retransmission.
 

Data Distribution Server

The Data Distribution Server is typically located in the oil company office. It gathers data from one or more remote Field Hub Servers into a datastore, and then makes this data available in the appropriate format for Oil Company central databases.

Once retrieved, the data can also be passed on selectively to oilfield partners, if required. Optionally, this data can also be made available to a DataHorizon Webserver, publishing the data onto the company intranet, or via a secure internet website.