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Fast dissolve CMC for Oilfield is a highly efficient water-soluble cellulose derivative designed for the oil industry. Its core characteristics are rapid dissolution and optimized rheological properties. The fast dissolve CMC is suitable for complex working conditions such as drilling fluid and fracturing fluid. Its excellent instant dissolution effect, dissolving in water without agglomeration, can reduce the dissolution time of other chemicals in the drilling fluid. Finally, the fast dissolve CMC greatly improve the efficiency of oilfield operations, and is currently a new type of carboxymethyl cellulose for oilfield drilling. With its fast hydration behavior and stable viscosity development, fast dissolve CMC provides reliable fluid-loss control and enhances drilling safety. The product performs well in brine-based systems and unconventional reservoirs, making it a preferred oilfield-grade CMC for high-efficiency drilling and stimulation operations.

Main Application for Fast Dissolve CMC in Oil Drilling

1. Rapid preparation of drilling fluid with fast dissolve CMC

In deep or ultra-deep well operations, fast dissolve CMC can be quickly dissolved in brine or saturated brine to form a stable colloidal structure, it could reduce preparation time and improve operating efficiency.Its controlled substitution degree ensures rapid hydration even under high salinity, making it suitable for modern high-efficiency drilling systems.
2. Fast dissolve CMC used in fracturing fluid thickening and sand carrying

The fast dissolve CMC used as a thickener for linear gel or cross-linked fracturing fluid, its rapid swelling characteristics can form a high-viscosity fluid in a short time. The fast dissolve CMC's solution enhance the carrying capacity of proppants, and it is particularly suitable for fracturing transformation of unconventional reservoirs such as shale gas.Field data shows that proper dosage improves sand suspension stability and reduces pump pressure during fracturing.
3. Fast dissolve CMC used in high-temperature cementing slurry

In high-temperature cementing, the fast dissolve CMC adjusts the rheology and water retention of cement slurry, reduces free water precipitation, improves the compressive strength of cement stone, and adapts to underground environments above 180°C. Due to its high temperature resistance, the fast dissolve CMC has a wide temperature use area, so it either use in the shallow well or deep well.Its temperature stability provides reliable performance support for complex cementing operations.

Application Solutions & Case Scenarios - "We solve field problems"

High-Salinity Offshore Make-up

Challenge: Rapid mixing of replacement mud on offshore rigs with seawater contamination.
Solution: Fast-Dissolve CMC (0.3–0.6%) achieves >95% hydration within 10–15 minutes and maintains API filtration control in simulated 35% NaCl brine. Result: faster rig turnaround and reduced operational downtime.

High-Temperature Well Stability

Challenge: Maintaining viscosity and filtration control after thermal exposure.
Solution: Use of thermally optimized Fast-Dissolve grade maintains ≥85% viscosity retention after 120°C × 24 h aging (2% solution). Result: less reconditioning and lower additive consumption.

Rapid Field Remediation (Onsite Conditioning)

Challenge: Unexpected filtrate increase during drilling operations.
Solution: Onsite addition of Fast-Dissolve CMC plus lignosulfonate reduces API fluid loss by 30–50% in field trials within one mixing cycle. Result: minimized NPT (non-productive time).

Advantage

1.Efficient Operation
The rapid dissolution characteristics of fast dissolve CMC can effectively reduce mud preparation time and improve drilling efficiency. This advantage is crucial for offshore and high-cost drilling environments. Its instant hydration behavior allows fast dissolve CMC to disperse evenly in high-salinity drilling fluids, supporting stable rheology control during long-interval circulation.

2.Environmentally Friendly
The biodegradability of fast dissolve sodium carboxymethyl cellulose is better than that of synthetic polymers and meets the green oilfield standards. It supports environmentally responsible drilling programs. This makes fast dissolve CMC a preferred choice for operators implementing ESG policies or working in ecologically sensitive regions.

3. Economical
The low addition amount of fast dissolve CMC can meet the performance requirements and reduce the overall cost. Bulk users can achieve stable performance with lower polymer consumption. Field data indicates that optimized dosage can reduce overall fluid-conditioning cost by 10–15%, providing measurable economic benefits for large-scale drilling projects.

4.Operational Responsiveness & Cost Efficiency

The instant-hydration behavior of fast dissolve CMC significantly reduces mud preparation time and optimizes the chemical dosing cycle. By forming a stable viscosity profile within minutes, it allows drilling teams to shorten wellsite turnaround, reduce on-site mixing energy consumption, and lower logistics and handling costs for bulk operations, especially in remote or offshore environments.

Specification

Spec.	Standard
Appearance	White or yellowish powder
Starch	None
Moisture	≤10.0%
DS	0.80-1.0
Filtration loss (API)	API standard
Purity	Technical or high purity
pH	7.0～10.0
Viscosity (1% solution)	20-5000 mPa·s

What we measure & why it matters

Dissolution performance: >95% hydration in ≤15 minutes (2% solution, 25°C) under standard mixing - enables fast mud make-up.
Thermal stability: ≥85% viscosity retention after 120°C × 24 h thermal aging (2% solution).
Salt tolerance: Functional stability demonstrated in simulated brine up to 35% NaCl (comparative to powder grades showing performance loss at lower salinity).
Filtration control: Typical API fluid loss reductions of 30–60% in conditioned formulations vs blank mud (dependent on formulation).
Testing standards: API RP 13A for filtration where applicable; internal SOPs for viscosity and DS measurement. Detailed test method descriptions are available on request and included in COA.

Quality Control & Traceability

Quality Control Overview
We operate a documented quality management system focused on repeatable performance for bulk and technical customers:

Raw Material Control

All cellulose feedstocks are procured from pre-qualified suppliers and tested on receipt for α-cellulose, moisture, ash, and fiber distribution. Supplier certificates and supplier audit records are maintained.

Process Control

Key production parameters (alkalization, etherification temperature profile, reaction time, neutralization pH, drying temperature) are monitored via in-line sensors and batch records. Degree of Substitution (DS) targets are controlled within narrow tolerances to ensure consistent hydration and salt tolerance.

In-Process Testing

Representative samples are taken during granulation/milling/packaging steps to verify particle size distribution, solubility index and residual alkalinity; deviations trigger corrective actions logged in the batch record.

Finished Product Testing & COA

Each lot receives a complete set of QC tests (DS, 2% solution viscosity, API filtration loss where applicable, moisture, pH, particle size, heavy metals if requested). A Certificate of Analysis (COA) is issued for every shipment.

Pre-Shipment QA & Traceability

Random re-testing of shipped batches, packaging inspection, and photographic evidence of loaded containers can be provided. Retention samples are kept for ≥24 months for dispute resolution. Third-party testing (SGS/BV/Intertek) is available upon request.

Why Choose Our Fast-Dissolve CMC?

Powerful,Professional

Decades of cellulose ether production experience and export track record.
Consistent batch performance (DS & viscosity control) backed by COA for each lot.
Rapid sample turnaround (200–500 g) and technical support for mud recipe optimization.
Export-ready packaging and full export documentation (COA, MSDS, packing list).
Third-party verification available for strategic orders.

Packing & Storage

1. Carboxymethyl cellulose should store in a cool, dry, clean, ventilated environment. Temperature Max. 70℃, with relative humidity ≤80%.

Storage:

2. The CMC for pharmaceutical and food grade should not be put together with the toxic substance and harmful substance or substance with peculiar smell during transportation and storage.

Storage:

3. Since the date of production, a preservation period of high temperature resistance sodium CMC should not exceed 4 years for the industrial product and 2 years for the CMC in pharmaceutical and food industry.

Storage:

4. The ultra-high temperature resistance CMC should be prevented from water and package bag damaging during transportation.

Packing:

25kg kraft paper bag with PE inner, or as clients request.

PAC-LV

Summary

Fast dissolve CMC has become a key additive in oilfield operations due to its modern rapid dissolution, rheological adjustment and excellent salt and temperature resistance. Its technical core lies in the optimization and compounding of molecular structure. The fast dissolve CMC future development direction will focus on standardization, multifunctionality and innovation of green production processes to meet more complex oil and gas extraction needs.

FAQ

Q1: Can I request a sample and COA before ordering?
A: Yes. We provide 200–500 g samples for lab evaluation with COA. Third-party testing is available on request.

Q2: What is the recommended dosage for drilling mud?
A: Typical field dosages range from 0.2% to 0.8%, depending on mud density, salinity and target filtration. We provide dosage optimization guidance.

Q3: Does Fast-Dissolve CMC work in seawater and high-mineralization systems?
A: Yes - the fast-dissolve grade is formulated for better salt tolerance and maintains performance in brine up to 35% NaCl in controlled tests.

Q4: What is the lead time for bulk orders?
A: Standard lead time is 7–21 days depending on quantity and destination; expedited options may be available.

Q5: How do you guarantee batch consistency?
A: Every shipment includes a COA; we maintain production logs and retention samples, enabling traceability and reproducible performance.

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