Premium
ExaCT electrical downhole CT control system
Delivers real-time precision, actuation, and control for CT interventions
Challenge
Why precision and control are critical in well intervention
Well intervention is becoming more complex as reservoirs mature and well designs evolve. Extended-reach wells, multilaterals, and integrated operations demand more accuracy than traditional methods can deliver. Pressure-based actuation and mechanical sequencing often introduce uncertainty—making it harder to execute tasks at the right depth and time.
Without real-time visibility and control, operations become less efficient and more prone to NPT and missed objectives. Conventional approaches often require multiple runs and manual adjustments, increasing risk, cost, and variability—and limiting the ability to complete complex interventions in a single trip.
As the industry focuses on efficiency, repeatability, and performance certainty, precision and control are now essential. Real-time measurement, command, and actuation reduce uncertainty and help ensure every intervention achieves its full potential.
Precision and control—when they matter most
Solution
Real-time electrical control system enabling precise, single-run CT nterventions in complex wells
The ExaCT™ electrical downhole CT control system delivers real-time precision, actuation, and control for complex CT interventions. By replacing passive, pressure‑dependent methods with active electrical control, the ExaCT system enables operators to make informed, on-command decisions supported by continuous downhole feedback.
The ExaCT system integrates power, telemetry, measurement, and actuation into a single electrical architecture. This allows tools to be activated precisely at target depth, operational modes to be changed without tripping, and multiple intervention objectives to be completed in a single run—critical for extended-reach, multilateral, and high‑complexity wells.
Designed for harsh downhole conditions, including sour, corrosive, and high-temperature environments, the ExaCT system improves execution confidence, reduces NPT, and delivers more predictable outcomes through standardized, repeatable, push-button workflows.
Built for extreme downhole conditions
Designed for harsh downhole conditions, including sour, corrosive, and high-temperature environments.
Multiobjective single-run capability
Supports completion of multiple intervention objectives in a single run.
Broad tool compatibility and integration
Supports SLB ReSOLVE Family™ instrumented wireline intervention services as well as other SLB and third-party intervention tools—electrical or hydraulic.
Adaptive workflow optimization
Enables dynamic, real-time workflow optimization and decision making across ExaCT system operations.
Enhanced cost predictability
Improves cost predictability by reducing NPT and operational uncertainty.
Real-time downhole control and actuation
Enables real-time electrical control and actuation of downhole CT tools.
Our services
Commonly asked questions
What is the ExaCT system?
The ExaCT system is an electrical downhole CT control system that enables real-time telemetry, measurement, and on-demand actuation of intervention tools, transforming conventional CT operations into precise, electrically controlled workflows.
What problem does the ExaCT system solve?
The ExaCT system addresses key challenges in CT interventions, including lack of precision, inconsistent execution, and reliance on hydraulic or manual processes, by enabling real-time control, feedback, and predictable performance.
How does the ExaCT system differ from conventional CT systems?
Unlike conventional systems that depend on pressure cycling and mechanical sequencing, the ExaCT system uses electrical control and real-time telemetry to provide direct command, immediate feedback, and precise execution of downhole operations.
What services are offered as part of the ExaCT system?
The ExaCT system consists of six integrated services:
- ExaCT access service
- ExaCT cleanout service
- ExaCT logging service
- ExaCT shifting service
- ExaCT isolation service
- ExaCT tractor service
Each service focuses on a specific intervention function while operating within a unified electrical control architecture.
What is MSAR and how does it support the ExaCT system?
The multicycle system for actuated response (MSAR) is a key enabling technology within the ExaCT system that provides on-demand electrical actuation of downhole tools with real-time feedback, eliminating the need for hydraulic pressure cycling and enabling precise, selective control of multiple tools in a single run.
What are the D&I and eMLT tools, and why are they important?
The direction and inclination (D&I) module and the electrical multilateral module (eMLT) are critical components of the ExaCT access service, enabling accurate mapping, navigation, and entry into multiple laterals, ensuring precise intervention placement and confirmation in complex well geometries.
Can the ExaCT system perform multiple operations in a single run?
Yes. The ExaCT system enables operators to combine multiple operations—such as logging, cleanout, stimulation, shifting, and isolation—in a single CT run, reducing time, cost, and operational complexity.
How does the ExaCT system improve operational efficiency?
The ExaCT system improves efficiency by enabling push-button control of downhole tools, reducing the need for multiple trips, minimizing fluid usage, and optimizing operations through real-time measurement and actuation.
What ExaCT system services are available today, and what is the roadmap for others?
Several ExaCT services are already being deployed in the field, particularly those built on mature ACTive™ real-time downhole coiled tubing services and MSAR technologies such as ExaCT access service and ExaCT cleanout service, while others—including ExaCT shifting service, ExaCT isolation service, ExaCT logging service, and ExaCT tractor service—are progressing through staged field testing, with broader commercial rollout planned following successful validation and qualification.
How does the ExaCT system improve decision making during operations?
The ExaCT system provides continuous real-time downhole measurements and confirmation of tool response, allowing operators to monitor conditions, validate actions, and make immediate, informed decisions throughout the intervention.
Does the ExaCT system integrate with existing tools and systems?
The ExaCT system integrates seamlessly with ACTive services, ReSOLVE Family services, and selected third-party tools, enabling flexible deployment and maximizing the value of existing intervention systems.
What is coiled tubing used for?
Coiled tubing is used to perform well intervention operations without removing the completion. Common applications include well cleanouts, nitrogen lifting, logging, perforating, stimulation, milling, fishing, and mechanical interventions. Coiled tubing enables efficient access to producing wells while minimizing downtime and operational risk.
What are the benefits of electrical coiled tubing?
Electrical coiled tubing combines conventional coiled tubing conveyance with real-time power and data transmission to downhole tools. This enables live monitoring, downhole control, logging, perforating, and tractor operations in a single run, improving operational efficiency and reducing intervention uncertainty.
When should operators choose coiled tubing instead of wireline?
Operators often select coiled tubing when wellbore circulation, fluid pumping, mechanical force, or continuous pipe conveyance is required. Coiled tubing is particularly effective for cleanouts, stimulation, milling, and interventions in highly deviated or horizontal wells where conventional wireline operations may be limited.
Can coiled tubing be used in extended-reach and horizontal wells?
Yes. Modern coiled tubing technologies, including downhole tractors, real-time telemetry, and electrical control systems, enable intervention in extended-reach and horizontal wells. These technologies help improve reach, enhance operational control, and increase the likelihood of successful intervention in complex well architectures.
Are you ready to take control?
Talk to a domain expert and discover how the ExaCT system can help you take control of your CT interventions.
