Expro Excellence
Well Intervention and Integrity
Expro’s intelligent intervention regains production
Customer challenges
  • Expro was approached by the customer who was experiencing gas influx in the B-annulus in a well which caused the well to be shut in
  • To remove the shut in casing pressure, the annulus fluid was replaced with 1.5 SG of brine. The lub and bleed option was considered too time-consuming due to the high viscosity of oil based mud in the annulus
  • Our intelligent integrity solution was seen as a cost effective alternative to re-completing the well
Expro Excellence
  • Expro diagnosed the problem and solved it with a bespoke tailor-made solution to run a 6mm OD WellSpring system for the operation due to the low clearance between the B-annulus casings
  • It was deployed to 49 metres underneath the B-annulus inlet allowing the brine to enter the annulus, while allowing the old annulus fluid to be circulated out of the annulus
  • The operation lasted 25 days, with 40,000 litres of brine being pumped into the annulus. Returns showed that a total of 27,000 litres of annulus fluid was replaced
  • Our minimally intrusive equipment allowed the remediation of annular integrity issues without the use of a heavy workover rig. The alternative for the customer would have been to recomplete the well
Value to client
  • Expro have the only system that can intervene the annulus
  • No spills or NPTs occurred during the project
  • A total of 27,000 litres of annulus fluid was displaced to 1.5 SG brine
  • The well is back producing from January 2020 and continues to produce with bleed-offs from the annulus every three days
  • The customer was extremely satisfied with the project and they have identified future candidates for future wells
Contact

Expro’s intelligent intervention regains production

In Brief
Expro's annulus intervention system regains production
Product Line
Well Intervention and Integrity
Region
Europe and Sub Saharan Africa
Customer challenges
  • Expro was approached by the customer who was experiencing gas influx in the B-annulus in a well which caused the well to be shut in
  • To remove the shut in casing pressure, the annulus fluid was replaced with 1.5 SG of brine. The lub and bleed option was considered too time-consuming due to the high viscosity of oil based mud in the annulus
  • Our intelligent integrity solution was seen as a cost effective alternative to re-completing the well
Expro Excellence
  • Expro diagnosed the problem and solved it with a bespoke tailor-made solution to run a 6mm OD WellSpring system for the operation due to the low clearance between the B-annulus casings
  • It was deployed to 49 metres underneath the B-annulus inlet allowing the brine to enter the annulus, while allowing the old annulus fluid to be circulated out of the annulus
  • The operation lasted 25 days, with 40,000 litres of brine being pumped into the annulus. Returns showed that a total of 27,000 litres of annulus fluid was replaced
  • Our minimally intrusive equipment allowed the remediation of annular integrity issues without the use of a heavy workover rig. The alternative for the customer would have been to recomplete the well
Value to client
  • Expro have the only system that can intervene the annulus
  • No spills or NPTs occurred during the project
  • A total of 27,000 litres of annulus fluid was displaced to 1.5 SG brine
  • The well is back producing from January 2020 and continues to produce with bleed-offs from the annulus every three days
  • The customer was extremely satisfied with the project and they have identified future candidates for future wells
Contact

For further information, please contact:

wellintervention@exprogroup.com