CleanWell® System TechnologyTECHNOLOGY BRIEF

Phillip Morgan

CWT Global Operations Manager

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What is it?

CleanWell® system technology is an engineered solution meeting the well cleaning objectives to sustain tough drilling parameters.▌ 26 tools in the product line

▌ Cleans casing ID

▌ Mechanically removes debris from the wellbore

▌ Provides hydraulic boosting to increase fluid velocities

▌ Helps reduce mechanical risk and promote rig time savings

▌ Primary applications include but not limited to:

Drilling Cleanouts and displacements Post perforation runs

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How it will Benefit you

▌ Robust, casing-friendly drilling systems engineered to promote downhole cleaning and debris management.

Wellbore cleanout solutions help minimize drilling and completion costs by saving time and trips.

Tangible savings are typically identified in the planning stages, intangible savings are realized when it comes to unplanned events or unexpected debris.

▌ CleanWell® system technology exceeds the weight-down limitations of the bottom bit or mill, and tensile and torsional values exceed the workstring connection.

Required tools can be placed appropriately in the well to help ensure performance

▌ Consistent debris removal Large debris capacity for removal Debris extraction tools not a limit for drilling environment

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Why it will Help

▌ Unplanned downhole benefits Debris inadvertently dropped down hole consistently recovered

− Mag Tech® magnets capturing magnetized components

− Non-ferrous recovery with Vali Tech® filter screen tools alleviating fishing operations

▌ Planned benefits (combining runs saving money) Single Trip Drillouts

− Performing drillout run to establish bottom with displacement tools deployed Saves dedicated drill out run

Negative Test

− Utilizing the rotational Inflow Tech® negative test packer with cleanout and displacement run

Saves dedicated negative test run Incorporate polish mills for VersaFlex® liner hangers saving another

dedicated run

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Unique Features

▌ Primary drillable tools designed for placement directly above the bit allowing single trip drillouts

Tensile and torsional values exceed workstring connection High flow area around tools for debris passage

▌ Drill Tech® Scraper & Bristle Tech® Brush Integral Mandrel (no weak internal connections) No external bolts for components Abundant flow passage around stabilizer and blades Fixed 25º blades (spring loaded)

− Helps ensure 360 degree coverage on casing ID

▌ Mag Tech® Magnet Robust Integral mandrel Abundant radial flow area around stabilizers

▌ Vali Tech® Filter Screen Tool Robust integral mandrel Stabilized for positive centralization and protection Robust stainless steel filter sleeve (0.035 Ga.)

Fluid Interrupter Sleeve (FIS) (Diverter)

− Shifting sleeve design

Self modulating by-pass

− Eliminates swabbing potential

Drill Tech® Bristle Tech® Vali Tech® Mag Tech®

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Where it Will Work

▌ CleanWell® system technology utilized in all phases of the well construction

▌ Primary applications include: Drilling

− Plug and Abandonment cleaning runs− Window mill cutting runs− Tools to ensure drift for casing being run

Cleanouts and Displacements− Establish bottom and displace mud to brine in one run

Fishing Applications− Debris removal utilizing debris extraction tools and mills

Post Perforation Runs− Packer plug retrieval runs utilizing CleanWell® products

including Vac Tech® eductor system

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Challenges Addressed

▌ Downsizing debris and debris removal Critical link between drilling and completions operations Sets the stage for completion success

− Important step for Halliburton / client completion assurance ▌ Best opportunity to get ahead of the debris curve if designed properly

Provides debris downsizing and removal throughout the well Constantly addressing debris beginning in drilling stages provides

for manageable operations throughout

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Who to Contact, Where to get more information

NamePhillip Morgan, Global Operations ManagerAlejandro Marin, Product Manager

Phillip.Morgan@halliburton.comAlejandro.Marin@Halliburton.com

Phillip MorganPhone: 337-839-6914Cell: 337-739-3496

www.halliburton.com/cleanwell

Alejandro MarinPhone: +12815753306Cell: +18325897926