What This Grade Is For
Hydroxyethyl Cellulose for Oil Exploration is supplied by Yiyuantong Chemical as a viscosifier and fluid-loss control additive for drilling and completion fluids. Hydroxyethyl cellulose is widely used in the oil field. HEC plays an important role in drilling, oil field development, seismic exploration, oil storage and transportation.
Key Benefits
- Builds viscosity in fresh and salt water alike, so the fluid survives brine contamination
- Controls filtration loss by forming a thin film at the borehole wall
- Suspends weighting agents and cuttings, keeping the hole clean during circulation
- Dissolves cleanly in cold water, which shortens mixing time on the rig
- Held in stock: 800 tonnes of HEC are carried year round, and confirmed orders ship to the named port within 3 working days
Problems It Solves
- Fluid loss into permeable formations, which damages the pay zone and raises mud cost
- Viscosity that collapses once the mud picks up salt from the formation
- Poor cuttings carrying in deviated holes, so solids drop out in the annulus
- Completion brines that need clean, acid-soluble viscosity without solid residue
Application Scenarios
- Water-based drilling mud
- Completion and workover fluids
- Fracturing and packer fluids
- Cement slurry for well cementing
Who It Is For
- Drilling fluid service companies
- Oilfield chemical blenders
- Completion fluid suppliers
Technical Features
- Non-ionic backbone, so viscosity survives salt and hard water
- Cold-water soluble, no cooking step needed in the mixing room
- Supplied from 300 to 200000 mPa.s so the grade can be matched to the process
- Molar degree of substitution of 1.8 to 3.0 for biological stability and high transmittance
- Solvent process raises the degree of substitution by 30 to 35 percent against traditional routes
Technical Data And Packing
| Product Name | Hydroxyethyl Cellulose |
|---|---|
| CAS No | 9004-62-0 |
| EINECS | 618-387-5 |
| Chemical Formula | (C2H6O2)n |
| Appearance | White or almost white, odorless, tasteless solid powder |
| Viscosity | 300-200000 mPa.s |
| Transmittance | at least 80.0 % |
| Molar Degree of Substitution | 1.8-3.0 |
| Water Content | 5.0 % max |
| Ash Content (as sulfate) | 6.0 % max |
| pH (1% solution) | 6.0-8.5 |
| Screening Rate (40 mesh) | at least 99 % |
| Packing | 25 kg per bag, inner polyethylene film, outer composite woven bag |
Packing is 25 kg per bag as standard: an inner polyethylene plastic film bag inside an outer composite plastic woven bag. Other pack sizes are arranged on request.
Raw Materials
- High alpha-cellulose refined cotton
- Wood pulp with high cellulose content
- Ethylene oxide
Manufacturing Process
- Alkalisation of refined cotton and wood pulp
- Etherification with ethylene oxide
- Acetone countercurrent washing
- Drying and milling
- 40 mesh screening
- Lot testing and packing
Quality Control
- Every lot is tested in our own laboratory against the customer specification before release
- Third-party verification is available through SGS, which we have worked with on export lots
- Certificate of analysis issued with each shipment; HPLC or NMR data supplied on request
- Acetone countercurrent washing removes process residues before drying and milling
How It Compares
| Xanthan gum | HEC is not fermented and holds up better against the enzyme attack that can thin biopolymer muds |
|---|---|
| Carboxymethyl cellulose | Being non-ionic, HEC tolerates high salinity and hardness that can knock down anionic CMC |
Use Guide
- Add through the hopper under circulation so the powder is wetted as it enters the system
- Allow full hydration before reading funnel viscosity, or the value will be low
- In heavy brines, allow longer hydration time than in fresh water
Customisation Options
- Viscosity grade selected against your process, from 300 to 200000 mPa.s
- Private label bags printed with your own label content
- Packing sizes arranged to suit your blending line
- Sample shipment by FEDEX, DHL or EMS before a production order
Certification And Inspection
- SGS third-party inspection available on export lots
- Certificate of analysis issued with every shipment
- HPLC or NMR data supplied on request
Other Grades Buyers Compare With This One
Hydroxyethyl Cellulose Ether for Oilfield Exploitation
A viscosifier and fluid-loss control additive for drilling and completion fluids.
View Specification
Hydroxyethyl Cellulose Ether for well completion
A viscosifier and fluid-loss control additive for drilling and completion fluids.
View Specification
Hydroxyethyl Cellulose Ether for Petroleum
A viscosifier and fluid-loss control additive for drilling and completion fluids.
View Specification
Building Painting Oil Drilling Grade Hydroxyethyl Cellulose
A viscosifier and fluid-loss control additive for drilling and completion fluids.
View Specification
Building Painting Oil Drilling Grade HEC
A viscosifier and fluid-loss control additive for drilling and completion fluids.
View Specification
Hydroxyethyl Cellulose for Oil Drilling (Oil Drilling Grade)
A viscosifier and fluid-loss control additive for drilling and completion fluids.
View SpecificationTechnical Notes
Industry Pages
Hydroxyethyl Cellulose for Oil Exploration FAQ
Does the viscosity hold up in saturated brine?
Yes. Hydroxyethyl cellulose is a non-ionic ether, so it is far less sensitive to salts and divalent ions than anionic thickeners.
What packing do you ship for rig-site use?
25 kg bags, inner polyethylene film with an outer composite woven bag. Larger orders ship palletised in containers.
Are you a manufacturer or a trading company?
We are a manufacturer and you are welcome to visit the plant. Our hydroxyethyl cellulose project runs at 5000 tonnes a year on an acetone countercurrent washing process.
What payment terms do you accept?
L/C, T/T, D/A, D/P, PayPal and Western Union. We have worked with China Export and Credit Insurance Corporation for many years.
How fast can you ship?
Stock items are despatched within 5 days of payment. If the grade is not in stock, production and despatch take 7 to 10 days from payment.
Get A Price For Hydroxyethyl Cellulose for Oil Exploration
Send the quantity, the viscosity grade and the destination port. We reply with price, lead time and the lot analysis.