Expro Excellence
Wireless Well Solutions
World first wireless annular barrier monitoring of a non-cemented liner in a deepwater subsea well
Objectives
  • New generation, non-cemented, annular barrier technology was to be evaluated by a deepwater operator, with a means to wirelessly verify the integrity of the barriers also required
Expro Excellence
  • A total of four CaTS™ annular barrier monitoring stations, mounted externally on 9 5/8" liner, were successfully deployed inside 12 1/4" open hole or 13 3/8" casing (three discrete reservoir units in a 12 1/4" carbonate open hole section; and a fourth zone, formed between 13 3/8" casing, 9 5/8" liner, the liner hanger, and an expandable barrier)
  • The barriers comprised a combination of new generation mechanically expandable barriers and more well established swell barriers
  • The barrier performance was monitored during and after periods of production and injection, with a particular focus on any changes in barrier performance resulting from thermal cycling and acid stimulation
  • Data recovery operations were performed by deploying a CaTS Active Pick-Up Unit (APU) into the well on e-line; the APU was positioned adjacent to the CaTS gauge located in each zone and a command was transmitted from surface via the APU requesting the upload of data sets between specific start and end times
Value to client
  • CaTS data was succesfully recovered wirelessly from each of the four zones being monitored
  • The data proved to be extrememly valuable in validating barrier performance under static and dynamic pressure/temperature cycles during flowing and shut in periods
  • CaTS gauges run with casing (no downhole gauge) therefore no additional rig time required to make up and run - traditional PDG cable, protectors and wellhead wet connectors

Intelligent well technology is increasinly being applied to enable the reservoir to be managed effectively and the recovery factor to be maximised. Achieving excellent zonal isolation behind casing is critical when planning to produce from multiple zones, or deploy intelligent well hardware.

Achieving effective cement placement and bonding between the formation and casing can be challenging, especially in deepwater and with carbonate formations, where channelling and lost circulation are common problems.

Expro CaTS wireless communications technology transmits data and control commands using electromagnetic (EM) communications. The EM signal uses the steel construction of the well, namely casing, liner or tubing, as a signal conduit and data can be transmitted both radially and axially through pipe. Deployment options include through-tubing, externally mounted on tubing, casing or liner, or via a completion conveyed mandrel.

Contact

World first wireless annular barrier monitoring of a non-cemented liner in a deepwater subsea well

In Brief
World first wireless annular barrier monitoring of a non-cemented liner in a deepwater subsea well
Product Line
Wireless Well Solutions
Region
North and Latin America
Objectives
  • New generation, non-cemented, annular barrier technology was to be evaluated by a deepwater operator, with a means to wirelessly verify the integrity of the barriers also required
Expro Excellence
  • A total of four CaTS™ annular barrier monitoring stations, mounted externally on 9 5/8" liner, were successfully deployed inside 12 1/4" open hole or 13 3/8" casing (three discrete reservoir units in a 12 1/4" carbonate open hole section; and a fourth zone, formed between 13 3/8" casing, 9 5/8" liner, the liner hanger, and an expandable barrier)
  • The barriers comprised a combination of new generation mechanically expandable barriers and more well established swell barriers
  • The barrier performance was monitored during and after periods of production and injection, with a particular focus on any changes in barrier performance resulting from thermal cycling and acid stimulation
  • Data recovery operations were performed by deploying a CaTS Active Pick-Up Unit (APU) into the well on e-line; the APU was positioned adjacent to the CaTS gauge located in each zone and a command was transmitted from surface via the APU requesting the upload of data sets between specific start and end times
Value to client
  • CaTS data was succesfully recovered wirelessly from each of the four zones being monitored
  • The data proved to be extrememly valuable in validating barrier performance under static and dynamic pressure/temperature cycles during flowing and shut in periods
  • CaTS gauges run with casing (no downhole gauge) therefore no additional rig time required to make up and run - traditional PDG cable, protectors and wellhead wet connectors

Intelligent well technology is increasinly being applied to enable the reservoir to be managed effectively and the recovery factor to be maximised. Achieving excellent zonal isolation behind casing is critical when planning to produce from multiple zones, or deploy intelligent well hardware.

Achieving effective cement placement and bonding between the formation and casing can be challenging, especially in deepwater and with carbonate formations, where channelling and lost circulation are common problems.

Expro CaTS wireless communications technology transmits data and control commands using electromagnetic (EM) communications. The EM signal uses the steel construction of the well, namely casing, liner or tubing, as a signal conduit and data can be transmitted both radially and axially through pipe. Deployment options include through-tubing, externally mounted on tubing, casing or liner, or via a completion conveyed mandrel.

Contact

For further information, please contact:

wireless@exprogroup.com