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Advanced circulation system solutions 


Halliburton continuous circulation systems enable continuous circulation during the drill pipe connection process for drilling and tripping narrow pressure window wells and providing continuous hole cleaning.

CASE STUDY - SOUTHEAST ASIA

e-cd™ Device Provides Continuous Circulation and Hole Cleaning

A total of 16 e-cd connections were made while running liner through a narrow operational window formation.

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Continuous Circulation Services

e-cd System

Providing constant equivalent circulating density and constant hole cleaning

e-cd Plus Continuous Circulation System

The e-cd Plus system enhances the process of performing continuous circulation connections during drilling and tripping operations. Continuous circu

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e-cd Plus Continuous Circulation System
e-cd sub
e-cd sub
e-cd Plus and Diversion Manifold
e-cd Plus and Diversion Manifold
HMI Panel to control e-cd Plus equipment
HMI Panel to control e-cd Plus equipment
e-cd Manifold in offshore Egypt
e-cd Manifold in offshore Egypt
e-cd Plus connection performed in Norway
e-cd Plus connection performed in Norway
e-cd and Diversion Manifold
e-cd and Diversion Manifold

Drill More Wells at Lower Cost

The e-cd circulation device improves success for challenging projects such as wells with narrow pore pressure/fracture gradients by keeping bottomhole pressure constant, provides continuous cooling in high-pressure/high temperature (HPHT) wells, and allows for continuous movement of cuttings in extended reach wells.

Continuous circulation during drill pipe connection 

The e-cd and e-cd Plus continuous circulation systems solve the start/stop problem that has persisted since the introduction of conventional rotary drilling. The standard process of pumping drilling fluids into the well is interrupted to turn pumps on and off every time a new joint of drillpipe is added to or removed from the drillstring.  

With continuous circulation, there is no interruption to the flow of drilling fluid into the well throughout the process of adding drillpipe joints to—or removing these joints from—the drillstring. This results in improved success rates for challenging projects, including wells with narrow pore pressure/fracture gradients, high-pressure/high temperature (HP/HT) wells, and extended-reach wells. 

The e-cd and e-cd Plus systems are engineered for drilling and tripping operations, enabling pumps to continue running while making connections. This keeps bottomhole pressure constant and maintains the same fluid rheology and temperatures, and ensures that cuttings keep moving. The e-cd continuous circulation system sets a benchmark for drilling innovation with proven success in efficiency, safety, and costs.  

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