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OILFIELD CHEMICALS
RiSeal Spacer MaxGuard-X
Viscous Sealing Spacer
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GENERAL DESCRIPTION
RiSeal™ Spacer MaxGuard-X (MGX) is the next-generation, mechanically enhanced sealing spacer system from Riteks, the developers of MS Spacer. Formulated for extreme well conditions, MGX delivers unmatched stability at temperatures up to 400°F (205°C), making it the optimal choice for challenging HPHT environments. With reduced loading requirements and advanced rheological properties, MGX maximizes cost-efficiency while maintaining premium sealing performance.
Other Names & Identifiers
- High-Viscosity Cementing Spacer
- Viscous Preflush Spacer
- Sealing Spacer Fluid
- Wellbore-Conditioning Spacer
- Mud-Removal Spacer
- Rheology-Enhanced Spacer
- Bridging/Sealing Preflush
- High-Gel Spacer System
- Weighted Sealing Spacer
- Mixed-Mode Spacer
- Wellbore Isolation Spacer
- Spacer with LCM/Bridging Package.
Common Challenges
- Lost Circulation
- Low Top of Cement
- Water Flow
- Mid to High Temperature
- Extended Reach
APPLICATIONS & BENEFITS
APPLICATIONS
APPLICATIONS & BENEFITSRiSeal™ Spacer MGX has applications in primary cementing as a mechanically enhanced sealing spacer that boosts tops of cement by mitigating or eliminating losses. Our clients have also found MGX useful ahead of a remedial cement jobs where they have used it like a "backstop" to cement against. MGX is suitable for land and offshore operations. It should be noted that MGX is a high performance sealing spacer that tackles tough lost circulation and HPHT issues, but is also is cost-effective enough to be considered as an everyday viscous spacer.
FEATURES & ADVANTAGES
APPLICATIONS & BENEFITS- Forms a seal to minimize filtrate invasion and effectively reduces/eliminates cement losses
- Delivers similar PV/YP as MS Spacer at ~2 lb/bbl less loading
- Enhances TOC & prevents cement fallback
- Provides wellbore strengthening & reduces incidents of induced losses downhole
- Enhances hole cleaning prior to cement placement, effectively removing gelled drilling fluids
- Compatible with virtually all cement systems, drilling fluids, surfactants, weighting agents, & LCM's
- Can be mixed with fresh water, sea water, or brines
Recommendations
APPLICATIONS & BENEFITS- Recommended as a Cement Spacer System up to 400°F (205°C)
- Depending on desired rheology, loadings can be varied from 7 to 20 lb/bbl
- For severe to total losses, couple with Riteks LCM Products (RadiLock Fibers, Riteks Legion-LCM - Multi-Modal LCM, etc...) for healing and sealing capabilities
Technical Specifications
PACKAGING
50lb Bags
GENERAL PHYSICAL PROPERTIES
Appearance
Tan, Dry Powder
Specific Gravity
1.8
Absolute Volume
0.0667
Bulk Density
38.7
Moisture %
0
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