Adjust pressure up or down as desired
Case Study
EC-Drill® Technology
Accurate formation limit testing with Controlled Mud Level
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Unique Pressure Management for Improved Drilling
MPD system with a Controlled Mud Level (CML) method increasing your options.
Tailored Control for Every Drilling Scenario
EC-Drill® adjusts the mud level in the Riser to maintain optimal bottom hole pressure. The flexibility of the system ensures consistent performance and improves the drilling process.
Why Operators Choose
EC-Drill®
The EC-Drill® enables operators to 'drill the undrillable' well. It solves a long-standing challenge commonly encountered in many deep-water wells: Complex architecture from narrow pressure windows. Here’s what sets it apart:
Combine sections
Improve tripping margins
Simplify and optimize operations
Drill longer wells and unlock new reserves
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Where EC-Drill® Makes the Greatest Impact
EC-Drill® is engineered to address complex challenges in offshore drilling, particularly beneficial with its unique pressure profile in environments with depletion and deepwater. This system significantly enhances operational safety and efficiency, making it ideal for a wide range of demanding offshore scenarios.
Explore the scenarios where EC-Drill® delivers the most value:
Pressure Management Challenges
Maintaining stable bottom hole pressure is essential for safe and efficient well construction. Whether you're dealing with narrow operating windows, depleted formations, or loss-prone zones, EC-Drill® MPD provides a unique precise pressure profile which adapts in real time according to actual well conditions.
Controls bottom hole pressure in narrow margins.
Adjusts annular pressure dynamically as formation conditions change.
Rapid pressure adjustments help mitigate and continue drilling safely.
Controlled ECD management for achieving zonal isolation.
Environmental & Regulatory
Enhanced Drilling’s technologies support operators in meeting the industry’s strictest environmental standards. By reducing logistics and operating time we help you minimize carbon footprint while maintaining performance.
Trip safer and faster - and avoid displacements.
Fewer displacements operations = less fluid, less hassle.
Reduces section count and logistics through a unique pressure profile – and control.
Deepwater & Ultra-Deepwater
In deepwater environments, pressure management, complex well architecture, and risks are amplified. EC-Drill® and supporting technologies enable safe, efficient drilling through capabilities from dual gradient effect, early detection systems, and flexible pressure control across all sections.
Combine sections in deepwater operations for a simpler well design.
Completion
Finalizing the well requires control to avoid formation damage, losses, or compromised barriers. EC-Drill® technologies enable easily adjustable Bottom Hole Pressure for wireline operations, running completion assembly, and gravel packing—ensuring straightforward, faster and better Completions.
Prevents losses and enables complete pack in long horizontals.
Increases the production rate by achieving a full screen-out when gravel packing.
Case Studies
See how the EC-Drill® technology deliver impact where it matters most.
Explore success stories from offshore operations where our solution helped reduce non-productive time, improve safety, and enable efficient drilling in some of the world’s most challenging environments.
Case Study
EC-Drill® Technology
Dual Gradient in Gulf of Mexico Deepwater
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Case Study
EC-Drill® Technology
Drilling and Completing the Undrillable for Major Operator
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Case Study
EC-Drill® Technology
Instant Kick Detection Demonstrated on Deepwater Well
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Case Study
EC-Drill® Technology
Gravel Packing Without Inducing Losses
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Case Study
EC-Drill® Technology
Improved Production from Gas Producer
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Frequently Asked Questions
EC-Drill® Operational FAQs
We receive a lot of detailed questions from drilling teams, and we’re always ready to support. To make things easier, we’ve gathered some of the most frequently asked questions about EC-Drill® and provided clear, practical answers below.
What is EC-Drill®?
EC-Drill® is a Controlled Mud Level (CML) technology that allows manipulation of bottom hole pressure (BHP) while drilling a well. The system controls the BHP by adjusting the fluid level in the marine drilling riser, and thereby the hydrostatic pressure applied. This is achieved with a Subsea Pump Module (SPM) which pumps all mud and cuttings returns up a separate Mud Return Line (MRL). The system can be used to adjust bottom hole pressure at any point during well construction regardless of whether there is any pipe in the well. It can be used for many applications, including the traditional MPD application of holding BHP.
By the IADC (International Association of Drilling Contractors) categorization System, EC-Drill® is a Controlled Mud Level (CML) system, it controls the mud level in the marine drilling riser. As a marine drilling riser is required, the system is only applicable to offshore wells.
By the IADC (International Association of Drilling Contractors) categorization System, EC-Drill® is a Controlled Mud Level (CML) system, it controls the mud level in the marine drilling riser. As a marine drilling riser is required, the system is only applicable to offshore wells.
What are the applications?
EC-Drill® is used for drilling depleted zones, narrow pressure windows, unknown pressure regimes, extending casing strings, freeing stuck tools, managing loss zones, and supporting well testing.
How fast can EC-Drill® be mobilized?
EC-Drill® mobilization speed depends on equipment availability and rig integration time. The Modified Riser Joint is usually the longest lead item, typically requiring up to 6 months, though shorter lead times have been achieved.
What is the criteria of the motors (poles, power, flow range)?
The motors are 4-poled and 300-510 kW each (different types). The flow range is up to approximately 6000 l/min, depending on depth and fluid weights.
What are the main equipment elements of EC-Drill®?
The main equipment elements of EC-Drill® are
EC-Drill® is a modular system that typically requires a 14ft Office Container, a 14ft Control Container, a Subsea Pump Module placed subsea and an Umbilical reel.
- Subsea Pump Module (SPM) – instrumented pump system used to pump all mud and cuttings to surface.
- Control System – the computerized control system that controls and monitors the SPM and associated equipment allowing for precise control of fluid level in the riser and thereby well pressure.
EC-Drill® is a modular system that typically requires a 14ft Office Container, a 14ft Control Container, a Subsea Pump Module placed subsea and an Umbilical reel.
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