Electris downhole fiber-optic wet-mate connector
Supports permanent sandface monitoring in real time, even in multitrip completions, via four fiber-optic channels
Applications
- Multitrip completions
- Extended-reach wells
- Wells with complex trajectories
- Fiber-optic lower completions where pumpable deployment using a control line wet-mate (CLWM) connector is not feasible
- Horizontal production wells
- Subsea production and injection wells
- Gravel-pack, frac-pack, and stand-alone screen (SAS) completions
Benefits
- Below-packer deployment: Installs below gravel-pack extension or lower completion packer—no specialized sand control service tools required
- Workover-ready design: Enables reconnection of fiber-optic lines with confidence after upper completion interventions
- Distributed measurements: Supports real-time acoustic, temperature, and strain sensing at the sandface for improved reservoir insights
- Operational efficiency: Reduces cost and simplifies logistics
Features
- Four fiber-optic channels support distributed temperature, strain, and acoustic sensing
- Modular architecture with optional optoelectric capability enables both optical and electrical signal transfer by pairing the fiber-optic wet-mate connector (WMC) with the Electris downhole contactless WMC
- Debris-tolerant architecture with three levels of protection ensures performance in harsh downhole environments
- Active positional locking enables precise alignment and secure engagement of the connector stinger and receptacle
- Dual-axial compensation maintains integrity under thermal and mechanical stresses induced during injection
- Ability to withstand high dogleg severity (DLS), up to 6°/30 m, makes the connector ideal for high-angle wells
- Proven orientation system ensures consistent, reliable reengagement
- Connector is qualified to SEAFOM TSD-01
How it improves performance
The Electris™ downhole fiber-optic wet-mate connector (WMC) enables robust, real-time monitoring across the entire sandface without compromising system integrity or operational efficiency. Its below-packer design simplifies multitrip installations, and it is compatible with industry-standard sand control completion equipment.
Distributed temperature, strain, and acoustic measurements provide granular visibility into production behavior and stimulation response at the reservoir level. This intelligence empowers operators to make faster, more accurate decisions for optimizing drawdown, improving recovery, and avoiding unwanted fluid breakthrough or out-of-zone injection.
During upper completion workovers, the connector’s modular design allows operators to retrieve and reinstall the upper completion and seamlessly reestablish fiber-optic connectivity to the lower completion. This simplifies workover activities such as ESP replacements, tubing changeouts, or subsurface safety valve servicing—without compromising lower completion monitoring integrity or sensor continuity. From initial deployment to late-life intervention, this connector is built to enable actionable intelligence with minimal disruption.
How it works
For gravel-packed and stand-alone screens:
Installed below the gravel-pack extension or lower completion packer, the Electris downhole fiber-optic WMC integrates directly into the lower completion to establish a high-integrity optical interface. Its four fiber-optic channels enable a direct connection to distributed sensing systems—supporting real-time temperature, acoustic, and strain measurements along the sandface. Optional pairing with the Electris downhole contactless WMC enables using inductive coupling to transmit electrical signals. As a result, it is possible to communicate with downhole pressure and temperature gauges belonging to the family of Metris™ permanent monitoring systems as well as control Electris interval control valve integrated screens.
The fiber-optic WMC comprises a stinger and receptacle; the former is run with the upper completion and stabs into the receptacle in the lower completion. A robust orientation system and active positional locking ensure precise alignment during deployment, injection activities, and reconnection. These features make this WMC suitable for challenging horizontal and deviated trajectories, including wells with dogleg severity as high as 6°/30 m. Three levels of debris protection safeguard performance during running in and long-term operation in harsh downhole environments.
