Expro Excellence
Wireless Well Solutions
Wireless Integrity Monitoring in deep water subsea well to meet suspension regulations
Customer challenges
  • Our Client Petrobras required to confirm barrier integrity for a well located in the Campos basin, offshore Brazil
  • Industry regulations required that integrity monitoring was in place toextend the temporary suspension for the well
  • If the temporary well suspension could not be extended the client would be required to perform a costly well intervention with a deep-water rig to fully P&A the well
Expro Excellence
  • Expro was contacted to see if there was a possible solution to use the CaTS system previously installed in the well to now provide well integrity data
  • Expro previously installed a Multi Gauge and Repeater CaTS system into the well which achieved the initial monitoring objectives and was no longer being utilized by the client
  • The client needed to obtain pressure and temperature data from below an upper barrier plug below which the CaTS repeater station was installed to confirm the well integrity
  • Expro's solution was to wirelessly re-purpose the repeater station as a monitoring position in the well and recover to surface pressure and temperature data via the systems duplex communication
  • The proposed solution was fully tested onshore by the local team and then successfully executed offshore, and data provided to the client
Value to client
  • Significant cost savings were realized for the customer as they took advantage of an already installed CaTS system to meet the monitoring objectives versus a costly offshore intervention to P&A this single well
  • The total cost of data upload operation was under 5% the estimated full P&A intervention cost
  • The client was able to defer the future P&A intervention for this well for a few years allowing them to avoid breaking into rig schedules impacting other operational priorities
Contact

Wireless Integrity Monitoring in deep water subsea well to meet suspension regulations

In Brief
Wireless Integrity Monitoring in a deep water subsea well
Product Line
  • Wireless Well Solutions
Region
North and Latin America
Customer challenges
  • Our Client Petrobras required to confirm barrier integrity for a well located in the Campos basin, offshore Brazil
  • Industry regulations required that integrity monitoring was in place toextend the temporary suspension for the well
  • If the temporary well suspension could not be extended the client would be required to perform a costly well intervention with a deep-water rig to fully P&A the well
Expro Excellence
  • Expro was contacted to see if there was a possible solution to use the CaTS system previously installed in the well to now provide well integrity data
  • Expro previously installed a Multi Gauge and Repeater CaTS system into the well which achieved the initial monitoring objectives and was no longer being utilized by the client
  • The client needed to obtain pressure and temperature data from below an upper barrier plug below which the CaTS repeater station was installed to confirm the well integrity
  • Expro's solution was to wirelessly re-purpose the repeater station as a monitoring position in the well and recover to surface pressure and temperature data via the systems duplex communication
  • The proposed solution was fully tested onshore by the local team and then successfully executed offshore, and data provided to the client
Value to client
  • Significant cost savings were realized for the customer as they took advantage of an already installed CaTS system to meet the monitoring objectives versus a costly offshore intervention to P&A this single well
  • The total cost of data upload operation was under 5% the estimated full P&A intervention cost
  • The client was able to defer the future P&A intervention for this well for a few years allowing them to avoid breaking into rig schedules impacting other operational priorities
Contact

For further information, please contact:

wireless@expro.com