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CG116S-P | Oil Well Cementing Additive
On-Site Field Application & Slurry Mixing Optimization with CG116S-P Powder
In high-pressure and high-temperature oil and gas well cementing operations, managing slurry filtration loss while maintaining optimum pumpability is critical to operational success. CG116S-P Dispersed Type Fluid Loss Additive Powder is a synthetic polymer additive specifically engineered to address key wellsite challenges during field mixing and displacement. Designed for bottom-hole circulating temperatures (BHCT) up to 180℃ (356℉), CG116S-P ensures rapid dispersion in cement slurries, effective fluid loss control, and enhanced gas migration control across challenging casing strings.
Field cementing crews frequently face operational issues such as excessive slurry viscosity, pump pressure spikes, prolonged setting transition times, and liquid-solid separation in deep wellbore environments. CG116S-P powder solves these issues by integrating strong inherent dispersity directly into its polymer structure. By eliminating the need for excessive secondary dispersant dosing, field operators achieve low-friction slurry pumping, predictable rheological behavior, and uniform slurry density from the batch mixer to the annular target zone.
Whether executing slurry placement in normal density cementing jobs or heavy-density deep gas well completions, CG116S-P provides robust tolerance to varying water quality, operating effectively in both fresh water and half-saturated brine systems. Field technicians benefit from its fast dissolution rate during dry-blending or tank shearing, preventing polymer fisheyes or unhydrated lumps that could clog slurry pumps or downhole float equipment. The resulting cement slurry exhibits excellent suspension stability, minimal free fluid, and a tight setting transition period that seals off high-pressure gas zones effectively.
Field Engineering & Physical Indicators of CG116S-P Powder
The technical parameters listed below outline the physical characteristics and certified slurry performance indicators for CG116S-P powder under standardized oilfield cementing test conditions.
| Item | Specification / Technical Indicator |
|---|---|
| Product Model | CG116S-P Powder Type |
| Appearance | Black or brown powder |
| Bulk Density (g/cm³) | 0.80 ± 0.20 |
| Water Solubility | Soluble in fresh water and half-saturated brine |
| Maximum Temperature Limit (BHCT) | 180℃ (356℉) |
| Recommended Field Dosage | 0.6% – 2.5% BWOC (By Weight of Cement) |
| Normal Slurry Density Reference | 1.90 ± 0.01 g/cm³ (25℃, Atmospheric Pressure) |
| Heavyweight Slurry Density Reference | 2.20 ± 0.01 g/cm³ |
| API Fluid Loss Value (Fresh Water) | ≤ 80 ml (80℃, 6.9 MPa) |
| Initial Slurry Consistency | ≤ 30 Bc (80℃ / 45 min, 46.5 MPa) |
| 40–100 Bc Thickening Transition Time | ≤ 20 min |
| Free Fluid Rate (%) | ≤ 1.4% (80℃, Atmospheric Pressure) |
| 24-Hour Compressive Strength | ≥ 14 MPa |
Field Rheology Mechanism & Anti-Gas Migration Performance
The operational efficiency of CG116S-P on the wellsite stems from its engineered synthetic polymer backbone, which combines hydration control functional groups with anionic dispersing structures. During field slurry preparation, the active polymer molecules adsorb quickly onto the surface of hydrating cement particles. This creates electrostatic repulsion that breaks up cement agglomerates, allowing interstitial water to release into the continuous liquid phase and dramatically lowering slurry yield point and plastic viscosity.
Key field advantages delivered by CG116S-P powder during pumping and placement operations include:
- Reduced Friction Pressure in Narrow Annulus: Thanks to its self-dispersing properties, CG116S-P significantly reduces hydraulic friction pressures during high-rate slurry displacement, protecting fragile formations against breakdown.
- Tight Transition Period & Gas Channeling Prevention: CG116S-P narrows the 40–100 Bc thickening transition time to 20 minutes or less. This rapid gelation prevents formation gas from invading the cement column while the slurry transitions from liquid to solid.
- Rapid Early Compressive Strength: Unlike conventional fluid loss additives that excessively retard cement hydration, CG116S-P promotes early strength development, achieving over 14 MPa within 24 hours to reduce Wait-on-Cement (WOC) downtime.
- High Weighting Agent Compatibility: In heavyweight slurries up to 2.20 g/cm³, CG116S-P holds high-density weighting materials such as barite or hematite in stable suspension, preventing particle settling and free water channeling.
Target Wellbore Conditions & Operating Scenarios
CG116S-P is engineered for seamless deployment across a broad spectrum of demanding field cementing scenarios:
- Medium to ultra-deep oil, gas, and geothermal wells operating at BHCT temperatures up to 180℃ (356℉).
- High-density cement slurries (1.90 to 2.20 g/cm³) requiring high pumping flow rates and low hydraulic resistance.
- Formations with narrow pressure margins where low equivalent circulating density (ECD) is required to prevent lost circulation.
- High-pressure gas zones requiring short setting transition times to eliminate gas channeling and annular pressure buildup.
- Field operations utilizing fresh water, brackish water, or half-saturated salt water up to 18% NaCl concentration.
- Production casing strings, liner cementing jobs, and repair squeeze operations in complex geological zones.
On-Site Field Operations & Cementing Performance Demonstration
In a deep gas well completion located in an offshore field block, field engineers utilized CG116S-P powder to prepare a 2.10 g/cm³ heavyweight cement slurry system. The bottom-hole circulating temperature reached 155℃ with a total displacement volume exceeding 65 cubic meters. Dry-blended into API Class G cement prior to bulk loading, CG116S-P mixed rapidly with water in continuous batch mixers without lump formation.
During the 4.5-hour pumping sequence, displacement pressures remained within designed safe thresholds due to the superior dispersity imparted by CG116S-P. Subsequent acoustic bond logging confirmed 100% zonal isolation across the target gas reservoir, with zero annular gas leakage detected at the wellhead.
Quality Control & Laboratory Slurry Formulation Support
Located in Tianjin, Kelioil's centralized R&D headquarters provides technical formulation support to field engineers worldwide. Prior to batch shipment, every production lot of CG116S-P powder undergoes rigorous slurry quality validation to ensure batch-to-batch consistency and high temperature stability.
Our experienced polymer synthesis team works closely with field crews to pre-verify slurry formulas using local cement samples, mixing water, and co-additives, eliminating potential wellsite compatibility risks before pumping commences.
Compliance with API Spec 10A & Quality System Certifications
CG116S-P powder is manufactured under strict environmental and quality management frameworks compliant with international petroleum industry standards. Tianjin Kelioil maintains ISO 9001 Quality Management System, ISO 14001 Environmental Management System, and ISO 45001 Health and Safety certifications.
All production batches comply fully with API Spec 10A specifications, offering global drilling contractors dependable additive performance across complex offshore and onshore operations.
Field Packaging, Storage & Handling Guidelines for CG116S-P
CG116S-P powder is packaged in heavy-duty 25 kg multi-wall paper bags lined with moisture-resistant polyethylene inner layers. For large-scale bulk dry-blending plants, 500 kg and 1,000 kg palletized jumbo bags with protective shrink wrapping are available for secure export transport.
When stored in cool, dry, and ventilated wellsite supply bases, CG116S-P retains a stable shelf life of 24 months. Field operators should re-verify product fluidity if the material exceeds its shelf life prior to dry-blending.
Field Performance Comparison: CG116S-P vs Conventional Fluid Loss Additives
The table below details the field operational advantages of CG116S-P powder compared to standard non-dispersing polymer fluid loss additives:
| Operational Parameter | Kelioil CG116S-P Dispersed Powder | Standard Non-Dispersing Additives |
|---|---|---|
| On-Site Dispersant Requirement | Low to zero additional dispersant needed | Requires substantial secondary dispersant dosing |
| High-Density Slurry Rheology | Low friction pressure, excellent fluid movement | High yield point, frequent pressure spikes |
| Transition Time (40–100 Bc) | Short (≤ 20 min); prevents gas migration | Extended transition window; risk of gas channeling |
| 24-Hour Strength Development | Fast (≥ 14 MPa at 80℃); short WOC time | Delayed hydration; slow initial strength gain |
| Salt Tolerance Range | Fresh water to half-saturated salt water | Sensitive to brine concentrations above 5% |
Global Field Services & Energy Industry Collaboration
Tianjin Kelioil actively engages with global oilfield service companies, national oil companies, and chemical distributors at international energy exhibitions. We provide on-site technical consultation and tailored chemical supply programs for complex field developments.
Our field support engineering team is available to assist international partners with regional slurry design, pilot testing, and on-site cementing application guidance.
Large-Scale Factory Capacity & On-Time Field Supply
Operating a modern 30,000-square-meter production park in Ninghe, Tianjin, Kelioil maintains an annual production capacity exceeding 10,000 tons for oilfield cementing additives. Automated powder synthesis and eco-friendly packaging lines ensure rapid delivery to major port hubs.
Positioned near Tianjin Port, Kelioil provides reliable containerized shipping, flexible bulk order scheduling, and short lead times to meet urgent wellsite drilling schedules worldwide.
Frequently Asked Questions (FAQ) - CG116S-P Field Application
1. Q: What maximum BHCT can CG116S-P adapt to in oilfield cementing?
A: CG116S-P fits well under 60℃ shallow oil wells to 180℃ (356℉) high-temperature oil wells, optimized by our professional R&D team.
2. Q: What is the recommended mixing dosage of CG116S-P cement additive?
A: Standard mixing range is 0.6%–2.5% BWOC for powder product, adjustable for custom slurry formula.
3. Q: Can CG116S-P match high-density cement slurry system for complex wells?
A: Fully compatible with all cement density formulas, supported by lab verification.
4. Q: What solvent can dissolve packaged CG116S-P powder additive?
A: Fresh water and half-saturated brine are available, mixing guidance provided for bulk orders.
5. Q: Can you customize packaging specifications and bulk CG116S-P formula?
A: Personalized packaging & formula solutions with full technical follow-up.
Consult with Kelioil Technical Team for CG116S-P Field Slurry Designs
Tianjin Kelioil Engineering Material and Technology Co., Ltd. is backed by a dedicated team of petroleum chemical researchers, slurry design engineers, and technical support specialists headquartered in Hengtong Enterprise Port, Xiqing District, Tianjin. Possessing extensive field experience in deep well cementing, gas migration control, and complex rheology optimization, our team provides tailored technical support to drilling contractors and energy service companies worldwide.
Holding 10 invention patents and 2 software copyrights, Kelioil's R&D leadership focuses on delivering customized additive formulations that perform flawlessly under extreme temperature and pressure conditions. From initial slurry optimization in our centralized lab to field dosage adjustments on the rig floor, our team is committed to ensuring total zonal isolation and long-term wellbore integrity for every partner project.
If you need technical data sheet, bulk quotation or customized cement slurry formula of CG116S-P, please send your demand via inquiry channel, our R&D and management team will reply within 24 working hours.
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