PolyDox™
Tailored for Optimal Matrix Penetration and Successful Zone Abandonment
PolyDox™ Near-Wellbore Water Control Gel
One-Stop Gel System for Conquering Challenges
Our advanced POLYDOX™ gel technology introduces a high-strength, precisely crafted artificial polymer gel. This groundbreaking gel possesses exceptional capabilities, allowing it to efficiently penetrate the matrix before the gelation process begins.
POLYDOX™ gel stands out as a versatile solution with a range of applications. Its primary role involves water shutoff, including tackling issues such as near-wellbore and high-permeability channeling, along with zone abandonment. Furthermore, it demonstrates exceptional proficiency in sealing openhole sections during vertical or short-radius horizontal recompletions.
Innovative Polymers for Robust Water Control
DOSAS Polymer Gel Technology
Rigid Gel Polymer, a Permanent Solution for Water Shut Off
Ultra-Low Molecular Weight Polymer
Its low molecular weight allows efficient penetration of small pores, ensuring optimal effectiveness.
Stable Under High Shear Pressure
Given its low viscosity, concerns regarding polymer chain breakage are substantially mitigated.
Stability with Hydrogen Sulfide
Owing to its special formulation, it possesses a perfect adherence even in long-term contact with H₂S.
Mix-water Hardness and Salinity
This solution remains stable against divalent cations at temperatures over 70°C, despite water hardness.
Ground Field Case Study
Precision Empowered, Mastering Gel Solutions
PolyDox™ was implemented as a water control technology in the Middle East to address the abandonment of zones invaded by injection well channeling, which resulted in a 93% water cut and a permeability of less than 5mD. The steps taken included re-establishing isolation, correcting the channeling behind the casing, and recompleting in new intervals containing hydrocarbons. Initially, after adding PolyDox™, the water cut was reduced, and oil production increased twofold.
Controlled Gel Working Time
Unlocking Precise Control Over Gel Working Time
We’ve perfected gel working time manipulation, offering unmatched flexibility in reservoir temperatures. Our solutions allow you to adjust working times between 1 to 24 hours by engineering design in polymer concentration and also modifying gel activator presence and concentration. PolyDox™ is ideal for reservoir applications with bottomhole static temperatures (BHSTs) up to 250°F (121°C). This polymer also integrates seamlessly into matrix with permeabilities of 30mD or greater, showcasing its adaptability and effectiveness.
Precision Analysis and Tailored Solutions
We at DOSAS, take pride in our exceptional capabilities dedicated to gel performance analysis. Our state-of-the-art facility empowers us to meticulously control gelling time, gel extrusion resistance, gel stability ensuring the perfect balance between setting and flexibility. We're equipped to determine precise gel working times for both mixing and pumping, enabling us to fine-tune our solutions to your unique requirements.
Operational Flexibility
Dosas proudly unveils a range of rigid gel polymers for near-wellbore applications. PolyDox™, with its complex formulation, demonstrates a high success rate in gas shut-off when followed by cement with a freshwater spacer.
For more detailed technical specifications and to discuss how our product can be tailored to your specific needs, please contact our technical support team.