Customer challenges
- A major operator in Cyprus aimed to reduce reservoir uncertainties by instrumenting an abandoned subsea well with a wireless monitoring system, transforming it into a high-value subsurface data monitoring asset. This initiative was designed to capture future interference testing data from subsequent appraisal wells, scheduled for drilling in 12 months’ time
- The wireless monitoring system was intended to:
- Provide Long-Term Monitoring: Enable continuous monitoring for more than 5 years, covering any drilling or well testing activities that may occur within the location
- Record Tidal Data: Measure and record location-specific tidal data, ensuring the subsurface team has comprehensive reservoir and tidal data sets for incorporation into reservoir models
- Support Strategic Decision-Making: Deliver accurate reservoir and tidal data to support and de-risk strategic, high-value decision-making associated with the field development plan
Expro Excellence
- Expro installed a dual downhole system In order to measure the wellbore pressure gradient to monitor the swap-out of completion fluids with the reservoir fluids and establish the reservoir fluid gradient
- The gauges for the well were pre-programmed with data transmission to give 5 years of monitoring
- Shallow and deep-set cement plugs were set to provide the necessary barriers in the well
- A CaTS subsea receiver was mounted on the side of the well debris cap to provide easy access to data via a PSV
Value to client
- Enhanced Monitoring: Utilized an abandoned subsea well as a data monitoring asset for optimal well integrity and performance. Providing 5+ years of accurate data for the client
- Removed Reservoir Uncertainties: Enhanced ability to reduce reservoir uncertainties through advanced monitoring and data collection
- Interference Testing Data: Collected valuable data during interference testing from an appraisal well
- Long-Term Monitoring: Provide long-term monitoring data for better planning and analysis
- Comprehensive Data Sets: Provided Access to comprehensive tidal and reservoir data sets for improved reservoir modeling
- Support Strategic Decisions: Support and de-risked strategic and high-value decision-making associated with the field development plan
- Efficient Installation: Achieve efficient installation of downhole and subsea equipment with single-run operations and ROV assistance
- Real-Time Data: Enabled real- time data transmission, decoding and storing transmissions from gauges
- Customer Readiness: Prepare data for immediate upload at the customer’s request, ensuring timely access to critical information
