Drilling Fluid Knowledge Center
Technical explanations organized around the field decision: application, formation, fluid symptom and the function actually missing from the system.
FOUNDATION & PILINGBored piles, barrettes and diaphragm walls
HDDFormation-led drilling fluid programmes
ACIDIZINGCompatibility, corrosion and treatment functions
Start with bored piles, HDD, water well, core, geothermal or another drilling method.
Clay, sand, gravel, rock and fractures create different support and loss mechanisms.
High density, poor cleaning, fluid loss, torque or unstable rheology are diagnostic clues.
Select rheology, filtration, inhibition, lubrication or loss control only after diagnosis.
Foundation & Piling
Technical guides for bored piles, diaphragm walls and barrettes covering support-fluid selection, ground conditions, field QC, troubleshooting and calculations.
Choose the support-fluid architecture from soil, groundwater, cleaning and project QC.
Polymer Slurry for Bored PilesMixing, contamination, density monitoring and bottom-cleaning strategy.
Bentonite Slurry for Bored PilesALKABEN preparation, hydration, filtration, desanding and final conditioning.
Ground ConditionsStart with sand and gravel, then follow formation-specific links for clay, cobbles and rock.
Slurry Testing & TroubleshootingInterpret density, Marsh, pH and sand content together.
Slurry Loss & ContaminationSeparate filtration, whole-fluid loss and solids contamination.
Field Calculators & QC ToolsCalculate volume and batch requirements, then connect to checker and log tools.
Diaphragm Walls & BarrettesSupport-fluid selection, slurry treatment, contamination and loss control for deep panels.
Technical guide to drilling-foam mechanism, applications, water and air conditions, foam stability and field dosage selection.
What Does Soda Ash Do in Drilling Mud?Technical guide to the role of soda ash in make-up-water conditioning, calcium control and bentonite hydration.
What Does Sodium Bicarbonate Do in Drilling Mud?Technical guide to controlled use of sodium bicarbonate for cement and lime contamination in water-based drilling fluids.
What Does Citric Acid Do in Drilling Mud?Technical guide to controlled use of citric acid for pH adjustment, selected contamination correction and cleaning in compatible drilling-fluid systems.
What Does Barite Do in Drilling Mud? How Is Mud Weight Increased?Technical guide to barite as a weighting material, mud-weight increase, suspension, settling and field control.
What Does Xanthan Gum Do in Drilling Mud? Viscosity and Cuttings TransportTechnical guide to xanthan gum for low-shear rheology, suspension and cuttings transport in water-based drilling fluids.
What Is Drill Rod Grease? How Are Friction and Wear Reduced on Rod Threads?Technical guide to grease-form protection of drill rods and threaded connections against friction, wear, seizure and corrosion.
What Does CMC Do in Drilling Mud? Filtration and Viscosity ControlTechnical guide to CMC for filtration control and grade-dependent rheology in water-based drilling fluids.
What Is the Difference Between PAC HV and PAC LV? Filtration Control in Drilling MudTechnical comparison of PAC LV and PAC HV for filtration control and grade-dependent viscosity in water-based drilling fluids.
How Can Torque and Friction Be Reduced in Drilling? What Does a Drilling Lubricant Do?Technical guide to diagnosing torque and drag and selecting a drilling lubricant for water-based drilling-fluid systems.
Why Does Lost Circulation Occur in Drilling? How Is LCM Selected?Technical guide to lost-circulation mechanisms, LCM sizing, fibrous and swelling materials, carrier-fluid requirements and equipment restrictions.
Why Does Foam Form in Drilling Mud? How Is a Defoamer Selected?Technical guide to causes of unwanted drilling-fluid foam, source diagnosis, defoamer selection and mud compatibility.
How Are Clay Swelling and Clay Dispersion Controlled in Drilling?Technical guide distinguishing clay inhibition, clay/mud dispersion control, cuttings integrity and reactive fine-solids management.
How Is Drilling Bentonite Quality Evaluated? Which Properties Matter?Technical guide to evaluating drilling bentonite by rheology, filtration, wet-screen residue, sand content, hydration and water quality.
What Is the Difference Between Powder and Liquid Drilling Polymer?Technical comparison of POLYWELL and DRILL-WELL by product form, mixing, hydration, logistics, dosing and total field cost.
How Are Reactive Clay and Fine Solids Controlled in Drilling?Technical guide to reactive-clay breakdown, fine-solids accumulation, rising mud weight and the role of CLAY BUSTER.
Compare drilling lubricants in the actual mud system and field symptom.
LCM Size & Blend SelectionFine, medium, coarse, fibrous and swelling LCM by loss mechanism and equipment restriction.
Clay Swelling InhibitionSeparate swelling, dispersion and solids-management problems before selecting inhibitor chemistry.
API vs High-Yield BentoniteSelect from verified specification, yield, water quality and project performance requirements.
Clay & Mud Dispersion ControlIdentify whether the field symptom points to dispersion control, inhibition, encapsulation or general mud thinning.
PAC vs CMCCompare fluid-loss control, viscosity contribution and water-chemistry response.
Primary vs Secondary EmulsifierUnderstand complementary emulsifier roles in invert-emulsion drilling-fluid systems.
HDD Fluid Selection & Field Troubleshooting
Start with the HDD selection guide, then move into water quality, reactive clay, hole cleaning, filtration/loss control and field testing.
Build the fluid around water quality, formation, hole cleaning, filtration, friction and actual loss mechanisms.
Reactive Clay in HDDSeparate inhibition, encapsulation and dispersion control before selecting chemistry.
HDD Hole CleaningRelate flow, rheology, cuttings generation, solids and reaming strategy.
Fluid Loss vs Lost CirculationKnow when PAC/CMC is the right route and when whole-mud loss needs LCM.
Water Quality & Mixing OrderHardness, calcium, salinity, pH and mixing sequence before adding more chemical.
HDD Field TestingUse pH, hardness, funnel viscosity, density, sand, filtration and return volume to guide treatment.
HDD Fluid Programme by FormationPremium decision center for clay, sand, gravel, rock, fractured and mixed ground.
Bentonite vs Polymer in HDDChoose bentonite, polymer or a combined system by formation and required fluid function.
Sand, Gravel & CobbleBore support, filtration, suspension and LCM for granular formations.
Rock & Fractured FormationsHeavy-cuttings transport, friction and fractured-zone loss control.
Reaming Fluid ProblemsWhy pilot-hole fluid can fail when cuttings volume and loss exposure increase.
HDD Pullback ProblemsSeparate friction, cuttings beds, reactive clay and bore-condition problems.
HDD Mud Recycling ProblemsFine solids, water-chemistry drift, foam and fluid deterioration through the shift.
Acidizing Additives & Compatibility Guides
Start with the complete selection guide, then move into the specific corrosion, iron, sludge, emulsion or cleanup function.
Corrosion, iron, sludge, emulsion and cleanup by treatment function.
High-Temperature AcidizingWhen a compatible corrosion-inhibitor package may need intensifier support.
Inhibitor vs IntensifierSeparate primary corrosion protection from high-temperature support.
Iron Control in AcidizingManage dissolved iron before spent acid creates precipitation risk.
Why Acid Sludge FormsAcid-sensitive crude, ferric iron and SLUDGECUT anti-sludge selection.
Acid–Oil Emulsion vs SludgeIdentify stable emulsion, insoluble sludge or both before selecting chemistry.
Mutual Solvent in AcidizingCleanup, wettability and acid–hydrocarbon compatibility without confusing the function with anti-sludge.
What are drilling fluid additives?
Drilling fluid additives are materials used to adjust viscosity, filtration, carrying capacity, borehole stability, lubrication, pH, density, foam behavior and solids control in a drilling fluid system. Mudolog organizes these products by function so buyers can match field problems to the correct chemical family.
Build carrying capacity, suspension and rheology for cuttings transport.
Fluid Loss ControlReduce filtrate loss and support thin, stable filter cake formation.
LCM MaterialsBridge fractures, permeable zones and loss pathways.
LubricantsReduce torque, drag, friction and sticking tendency.
Clay & Shale InhibitorsControl swelling, dispersion and borehole instability.
OBM AdditivesSupport emulsion stability, wetting, HPHT filtration and rheology.
Frequently Asked Questions
What does Mudolog supply?
Mudolog supplies drilling fluid additives and oilfield chemical systems for water well, HDD, core drilling, geothermal, tunneling, foundation, mining exploration and oil and gas drilling applications.
Which drilling fluid additive groups are available?
The Mudolog range includes viscosifiers, fluid loss control additives, lost circulation materials, lubricants, clay and shale inhibitors, foaming agents, defoamers, weighting agents, pH control additives, thinners and dispersants.
Does Mudolog support OBM, acidizing and cementing systems?
Yes. Mudolog includes OBM additives, completion and acidizing chemicals, and cementing additives as dedicated product systems.
How should buyers select the right Mudolog product?
Selection should be based on drilling application, formation behavior, water quality, temperature, target viscosity, fluid loss requirement, torque or drag conditions, loss severity and required packaging.
Are TDS and SDS documents available?
TDS and SDS/MSDS documents are handled through Mudolog technical document requests and can be matched to the relevant product, project and destination requirements.