M-I SWACO, a Schlumberger Company | Schlumberger


A Schlumberger company

M-I SWACO became a Schlumberger company in 2010. Innovative drilling fluid engineers are at the company's core, helping oil and gas operators increase efficiency and lower costs. We do this by developing drilling fluid systems and additives that accommodate a wide range of drilling environments and demanding applications—including HPHT, deep water and ultradeep water, shale gas, heavy oil, depleted wells, and more.

Proven solutions for downhole challenges—from the simple to the complex

Specialized additives complement the efficiencies of our advanced drilling fluid systems by targeting performance-hindering downhole conditions, eliminating or minimizing the problems that drive up costs and threaten drilling programs. For example, we were the first to introduce cost-effective, high-efficiency micronized barite technology to water- and oil-based drilling fluids.

Tailored fluids and additives for optimal efficiency and reduced cost

Our base fluids and additives are tailored for specific well construction applications. Custom formulation helps you maintain wellbore stability, optimize ROP, and increase overall drilling efficiency while reducing NPT and minimizing HSE footprint.

MI-SWACO logo.

Drilling Fluids and Solids Control

Overcome a range of downhole challenges—from the simple to the complex.

Solids Control and Cuttings Management

Equipment and services to maintain drilling fluid integrity and minimize waste

Our solids control technologies and services maintain drilling fluid integrity and minimize waste.

Drilling Fluids

Customized fluid systems and associated additives

Improve efficiencies, reduce costs, and minimize HSE impact in demanding applications, including HPHT, deepwater, and depleted wells.

Completion Fluids and Wellbore Cleaning Tools

Accelerate and maximize production with minimal HSE impact.

Clear Brines

Minimally damaging completion brines

Minimize formation damage and control reservoir formation pressures with halide and formate brines and additives.


Displacement strategy

Prepare for completion by displacing drilling fluid to clear brine, removing solids and debris to deliver a clean wellbore.

Intervention Fluids

Fluids for postdrilling well worker and intervention

Lower flow-assurance risks and pump pressure with debris-removal fluid and viscosifiers.

Reservoir Drill-In Fluids

Minimally damaging fluids for reservoir drilling and openhole completions

Minimize formation damage with completion-compatible reservoir drill-in fluids and associated additives.

Filtercake Breakers

Removal of filtercake in openhole completions

Prepare your openhole completion for uniform production by tailoring filtercake breakers to your well.

Filtration Products, Equipment, and Services

Technologies to remove suspended solids from fluids

Protect your well and completion with optimized filtration solutions.

Fluid Loss Control Systems

Solids-free and solids-laden additives for controlling fluid loss during and after completion

Mitigate losses during perforating, openhole and cased-hole completions, and sand control operations.

Packer Fluids

Block heat transfer to maximize well integrity

Maintain production flow and well integrity in cold-temperature, deepwater, and arctic environments.

Wellbore Cleaning Tools

Mechanical precompletion wellbore cleanup solutions

Efficiently remove mud residue and other debris to deliver an unobstructed wellbore for the completion.

Production Chemicals

Maximize production from reservoir to refinery.

PREVENT Technologies

Fewer production threats for optimized performance

Maximize production through prevention and inhibition of scale, paraffin, asphaltene, and corrosion.

PERFORM Technologies

Full field potential—achieved

Assure production and asset operations while extending field life.

CURE Technologies

Restoration of full production

Reinstate and improve flow performance and revenue.


Pipeline chemistry solutions and service

Maintain and maximize your flowline efficiency with customized chemical cleaning services, technologies, and workflows.


Descaling, decontamination, and decommissioning service

Tackle scale, decontaminate NORM, and decommission with efficiency.

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