Product Description
Crosslinking Loss Circulation Material is a high-performance, temperature-activated polymeric system engineered to effectively control severe fluid losses in drilling and workover operations. This advanced crosslinking loss circulation material utilizes a unique chemical formulation that undergoes controlled crosslinking reactions upon exposure to formation temperatures, creating a rigid, three-dimensional gel network capable of sealing fractures and high-permeability zones. The resulting rubber-like elastic gel provides exceptional mechanical strength and deformation resistance, ensuring long-term zonal isolation even under high differential pressures.
The mechanism of this crosslinking loss circulation material involves delayed viscosity development that allows the low-viscosity initial slurry to penetrate deep into formation matrix permeability below 750 millidarcies before achieving complete gelation.
Technical Specifications
Effective Temperature Range: 60°F to 350°F (16°C to 177°C)
Salt Tolerance: Up to 5,000 mg/L total dissolved solids
Matrix Permeability Application: <750 millidarcies
Gelation Time: Adjustable based on temperature and concentration
Expansion Ratio: 1:3 to 1:5 upon water contact
Applications/Functions
Controls severe lost circulation in fractured and high-permeability foramations
Provides effective water shutoff and profile modification in production zones
Seals matrix permeability zones through deep penetration and gelation
Suitable for both drilling and workover/completion operations
Enables conformance control in heterogeneous reservoirs
Performance Advantages
Temperature-activated crosslinking ensures precise placement and gelation
Develops rubber-like elasticity for durable sealing under pressure
Maintains low initial viscosity for deep formation penetration
Exhibits excellent salt resistance and temperature stability
Provides cost-effective solution compared to mechanical alternatives
Compatible with most water-based and brine-based fluid systems
Recommended Formulations
Moderate Seepage/Losses (10% Concentration):
10 m³ base fluid + 0.5 metric tons crosslinking polymer + 0.5 metric tons LCM agent
Severe Lost Circulation (20% Concentration):
10 m³ base fluid + 1.0 metric tons crosslinking polymer + 1.0 metric tons LCM agent
Field Application Protocol
Prepare polymer slurry using recommended concentration guidelines
Pump via reverse squeeze from drill pipe or annulus to target zone
Maintain 200-300 psi shut-in pressure for initial gel development
Apply additional pressure after initial gel set for complete formation sealing
Monitor returns until full circulation is established or leakage rate minimized
Competitive Positioning
This advanced technology provides comparable performance to industry benchmarks including Baker Hughes CARBO-SEAL and Baroid STEEL-SEAL systems, while offering enhanced temperature adaptability and deeper matrix penetration capabilities.
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