Sodium Carboxymethyl Cellulose CMC-HV
Product Description
Chemical Name: Sodium Carboxymethyl Cellulose (CMC)
Type: CMC-HV is a high-viscosity sodium carboxymethyl cellulose, belonging to water-soluble polymer compounds.
Appearance: White or light yellow powder.
Characteristics: Excellent thickening, suspending, emulsifying, and stabilizing properties. It can significantly increase the viscosity of drilling fluids, reduce filtration loss, and stabilize the wellbore.
Mechanism of Action: By adsorbing onto the surface of clay particles, it forms a stable colloidal structure, reducing the infiltration of filtrate into the formation.
Performance Indicators
Viscosity: High viscosity (1% aqueous solution viscosity typically ranges from 1000-3000 mPa�·s).
Filtration Loss: Significantly reduces API filtration loss (usually
Potassium Polyacrylate Inhibitor
1. Product Description
Chemical Name: Potassium Polyacrylate. It's a polymer from acrylic acid monomers in potassium salt form. Appears as white or light yellow powder/granules. Features good water solubility, inhibition, and stability, effectively curbing clay hydration swelling in drilling fluid and stabilizing wellbores.
2. Performance Indicators
Medium - molecular - weight (10â?¶ - 10â?· Daltons). Soluble in water, forming clear or slightly turbid solutions. Inhibits clay mineral swelling, reducing drilling fluid filtrate loss. With good heat resistance (over 120�°C), suitable for high - temperature deep wells. Aqueous solution is weakly alkaline (pH 8 - 10), and it's non - toxic, meeting environmental standards.
3. Scope of Application
Ideal for water - based drilling fluid systems, especially those needing to control clay swelling. Suited for mud shale and high - clay - content strata, preventing wellbore collapse and diameter reduction. Applies to medium - to - high - temperature wells (â?¥120�°C), used in land and offshore drilling, deep/ultra - deep well operations, and drilling in complex formations like mud shale and salt - gypsum layers.
4. Usage and Dosage
Can be added directly to drilling fluid and stirred, or pre - dissolved in a small amount of water to form a concentrate before adding. Recommended dosage is 0.1% - 0.5% (by weight) of total drilling fluid volume. In high - clay or unstable - wellbore scenarios, it can be increased to 0.5% - 1%, adjusted according to downhole conditions.
5. Application Scenarios
In mud shale formations, it averts wellbore collapse from clay swelling. In high - temperature deep wells, it maintains drilling fluid stability. In complex formations, it prevents wellbore diameter reduction and drill sticking. Its eco - friendly nature makes it suitable for offshore drilling and environmentally sensitive areas.
6. Advantages
Highly efficient in inhibiting clay swelling, ensuring wellbore stability. Environmentally safe, non - toxic, and pollution - free. Adaptable to various drilling conditions. Cost - effective with a small dosage bringing notable effects.
7. Precautions
Ensure full dissolution to avoid agglomeration. Test compatibility with other additives. Store in a dry, ventilated place, away from moisture and heat. Wear gloves and masks during use to avoid skin and eye contact.
Conclusion
Potassium polyacrylate inhibitor is an efficient and eco - friendly drilling fluid additive, crucial for various complex formations and high - temperature deep wells due to its outstanding inhibitory and stable properties. Contact for more info or customized services.
Polyanionic Cellulose PAC - LV
1. Product Description
Chemical Name
Polyanionic Cellulose (PAC), a cellulose derivative.
Chemical Structure
It has anionic features, coming from its unique structure.
Appearance
Appears as white or light - yellow powder.
Characteristics
It's a top - notch fluid loss reducer. Reduces drilling fluid's fluid loss, stabilizes wellbores, and improves drilling fluid's flow properties.
Action Mechanism
Adsorbs on clay particles, forming a stable colloid to cut down filtrate entering the formation.
2. Performance Indicators
â?¢ Viscosity: 500 - 2000 mPa�·s in 1% aqueous solution.
â?¢ Fluid Loss: Greatly decreases API fluid loss, often < 10 mL/30 min.
â?¢ Temperature Resistance: Good heat tolerance, suitable for â?¥ 90�°C medium - temp settings.
â?¢ pH Value: Aqueous solution is neutral to weakly alkaline (pH 7 - 9).
â?¢ Solubility: Soluble in water, forming clear or slightly cloudy solutions.
â?¢ Environmental Friendliness: Non - toxic, pollution - free, meeting green standards.
3. Scope of Application
Drilling Fluid System
Works for water - based drilling fluids.
Geological Conditions
Suits medium - deep and deep wells, plus complex formations like mud shale and sandstone.
Temperature Range
Applies to medium - temp environments (â?¥ 90�°C).
Application Scenarios
Used in land & offshore drilling, medium - deep and deep well operations, and drilling in complex formations.
4. Usage and Dosage
Usage
â?¢ Direct Addition: Slowly add PAC - LV powder to drilling fluid and stir well for even spread.
â?¢ Premix Dissolution: Dissolve it in a bit of water first, then add the concentrate to the drilling fluid.
Dosage
â?¢ Regular Dosage: Recommended 0.1% - 0.5% (by weight) of total drilling fluid.
â?¢ High Fluid Loss Conditions: Can increase to 0.5% - 1% in such cases.
â?¢ Dynamic Adjustment: Adjust dosage based on downhole factors like rock type, temp, and pressure.
5. Application Scenarios
Mud Shale Formations
Reduces fluid loss and stabilizes wellbores during drilling.
Medium - Deep and Deep Wells
Keeps drilling fluid stable.
Complex Formations
Prevents wellbore collapse and high fluid loss in sandstone and mudstone.
High - Environmental - Requirement Areas
Suitable for offshore drilling and eco - sensitive zones due to its green nature.
6. Advantages
â?¢ High - efficiency Fluid Loss Reduction: Cuts fluid loss, stabilizes wellbores.
â?¢ Rheology Improvement: Optimizes drilling fluid flow, boosts drilling efficiency.
â?¢ Environmental Safety: Non - toxic, pollution - free.
â?¢ Strong Adaptability: Works in various drilling and geological settings.
â?¢ Cost - effective: Small dosage, big effect.
7. Precautions
Solubility
Make sure PAC - LV fully dissolves to avoid clumping or high local concentration.
Compatibility
Good with other additives, but test first.
Storage ConditionsStore in dry, ventilated places, away from moisture and heat.
Safe Operation
Wear gloves and masks to avoid skin and eye contact.
Phenolic Resin SMP - 2
1. Product Description
Chemical Name
Phenolic Resin.
Type
SMP - 2, a sulfomethylated phenolic resin, is water - soluble.
Appearance
It shows as brown or dark - brown powder/granules.
Characteristics
Exhibits great high - temperature, salt, and pollution resistance. Effectively cuts drilling fluid's fluid loss and stabilizes wellbores.
Action Mechanism
Adsorbs on wellbore and clay particle surfaces, forming a compact filter cake to minimize filtrate entry into the formation.
2. Performance Indicators
Temperature Resistance
Outstanding high - temp resistance, suitable for over 200 C environments.
Salt Resistance
Maintains stable performance even in saturated brine.
Fluid Loss
Markedly reduces API fluid loss, usually < 10 mL/30 min.
pH Value
Aqueous solution is weakly alkaline (pH 8 - 10).
Solubility
Easily dissolves in water, forming clear or slightly turbid solutions.
Environmental Friendliness
Low - toxicity, low - pollution, meeting environmental standards.
3. Scope of Application
Drilling Fluid System
For water - based drilling fluids, especially in high - temp and high - salinity scenarios.
Geological Conditions
Appropriate for complex strata like high - temp/high - pressure, salt - gypsum, and mud shale formations.
Temperature Range
Suits high - temp conditions (over 200 C).
Application Scenarios
High - temp deep and ultra - deep wells.
Salt - gypsum and mud shale formations.
Drilling in complex formations.
4. Usage and Dosage
Usage
Direct Addition
Slowly add SMP - 2 powder to drilling fluid and stir well for even distribution.
Premix Dissolution
Dissolve it in a small amount of water first, then add the concentrate to the drilling fluid.
Dosage
Regular Dosage
Recommended 1% - 3% (by weight) of total drilling fluid volume.
High - temp/High - salinity Environment
Can increase to 3% - 5% in such conditions.
Dynamic Adjustment
Adjust dosage according to downhole factors like rock type, temp, and pressure.
5. Application Scenarios
High - temperature Deep Wells
Reduces fluid loss and stabilizes wellbores in high - temp deep and ultra - deep wells.
Salt - gypsum Layers
Prevents wellbore collapse and excessive fluid loss in salt - gypsum layers.
Complex Formations
Works for mud shale and sandstone formations to avoid wellbore collapse and high fluid loss.
6. Advantages
High - efficiency Fluid Loss Reduction
Significantly cuts fluid loss and stabilizes wellbores.
High - Temperature/High - Pressure Resistance
Performs stably in high - temp and high - pressure settings.
Salt Resistance
Stable in saturated brine.
Environmental Safety
Low - toxicity, low - pollution, environmentally friendly.
Cost - effective
Small dosage, great results, high cost - performance.
Temperature Range
For medium to high temperature wells over 150C
Application Scenarios
In horizontal and extended reach wells to mitigate tool wellbore friction
In high pressure formations to prevent drill sticking and tool wear
In deep and ultra deep wells to boost drilling efficiency
4 Usage and Dosage
Usage
Direct Addition
Slowly add to drilling fluid and stir well for even spread
Premix Dissolution
Mix with a small amount of drilling fluid first then add to the main system
Dosage
Regular Dosage
05 15 by weight of total drilling fluid volume
High Friction Conditions
Can increase to 15 25 in high pressure or high friction situations
Dynamic Adjustment
Adjust according to downhole factors like rock type and tool wear
5 Application Scenarios
Horizontal and Extended Reach Wells
Reduces friction preventing drill sticking
High Pressure Formations
Cuts tool wear extending tool lifespan
Deep and Ultra Deep Wells
Enhances drilling efficiency reducing accidents
Complex Formations
Prevents wellbore collapse and tool jamming in mudstone and shale
6 Advantages
High efficiency Friction Reduction
Markedly cuts friction minimizing tool wear
High TemperaturePressure Resistance
Stable in high temp and high pressure settings
Strong Compatibility
Works well with different drilling fluids without side effects
Cost effective
Small dosage big impact high cost performance
7 Precautions
Dispersibility
Ensure even dispersion avoiding clumping or high local concentration
Compatibility
Good with other additives but verify through small scale tests
Storage Conditions
Store in a dry ventilated place away from moisture and heat
Safe Operation
Wear gloves and masks to avoid skin and eye contact
