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Designed to enhance hole straightness in directional drilling, this China-manufactured stabilizer features 4 spiral blades (30° angle) for 35% reduced stick-slip vibrations. Made of 4140 alloy steel with tungsten carbide hardfacing, it resists wear in quartz-rich formations and supports both PDC and tricone bits in 4-6'' holes. The 1.2m length and G2.5 dynamic balance grade ensure stable operation in deviated wells (20°-60° inclination), while the lightweight design (28kg) improves tripping efficiency.
Tailored blade pitch for specific formations, full material traceability, and a 30-day performance warranty to reduce non-productive time.
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The 4 1/8'' (104.8mm) Spiral Blades Drilling Stabilizer is designed to enhance hole straightness and reduce vibration in directional drilling, featuring 4 high-strength alloy blades with 30° spiral angle. The body (API 5DP thread) is made of 4140 alloy steel (HRC 38-42), with tungsten carbide hardfacing on blade edges (55HRC) to resist abrasive wear. Its centralizer diameter (102mm) provides optimal clearance for 4 1/2'' drill pipes, while the 1.2m length ensures effective lateral stabilization. The dynamic balance grade (G2.5) minimizes harmonic vibrations across the 150-250 RPM operating range.
30° spiral blade angle reduces stick-slip frequency by 35% through improved torque transfer, as validated by torsional vibration tests (ASTM D4065)
15mm blade thickness and 80mm spacing balance cuttings evacuation (500 GPM capacity) and lateral support (stiffness 20kN/m), ideal for 20°-60° deviated wells
Finite element analysis (FEA) optimized blade profile reduces resonant frequency by 25% compared to straight-blade designs
Plasma-transferred arc (PTA) hardfacing (WC-12Co) on blade tips increases abrasion resistance by 50% in quartz-rich formations, with wear rate <0.1mm/100m
30μm chromium-plated body resists corrosion in saltwater mud (3.5% NaCl), passing 1000-hour salt spray test (ASTM B117)
8mm fillet radius at blade roots reduces stress concentration by 30%, preventing fatigue failure in high-frequency vibration environments
Compatible with both roller cone and PDC bits in 4-6'' hole sizes, field-proven in both vertical (Texas Barnett shale) and horizontal (North Sea chalk) applications
28kg lightweight design reduces hook load by 10% compared to similar stabilizers, improving tripping speed by 15%
Custom blade pitch (25°-35°) available based on formation brittleness index, optimized via client-specific drilling dynamics modeling
Directional drilling in laminated shale formations (e.g., Eagle Ford Shale with 45° bedding planes)
Horizontal well drilling in interbedded sandstone/mudstone sequences requiring 0.5°/30m inclination control
Slim hole drilling (4-6'') for geothermal exploration in granite intrusions
Reaming operations to correct borehole ovality (>5%) in soft-sediment basins
Blade Wear Indicator: Replaceable tungsten carbide buttons (10mm diameter) with color-coded wear scales, enabling quick visual inspection during tripping
Thread Protector: Heavy-duty plastic cap (HDPE, UV-stabilized) with steel insert, meeting API Spec 5CT thread protection requirements
Alignment Tool: Laser-guided device (accuracy ±0.1°) for precise stabilizer positioning relative to bend subs in directional assemblies
Engineering Customization: Tailored blade geometry using client-provided wellbore data (e.g., dogleg severity, mud properties) for optimal vibration control
Material Traceability: Full material test report (MTR) including chemical composition, heat treatment records, and mechanical properties (tensile, impact)
Performance Guarantee: Independent third-party testing shows 10% faster ROP due to reduced bit bounce, backed by 30-day performance warranty
Cost Efficiency: Extended service life (200+ hours) reduces non-productive time (NPT) by minimizing tripping for stabilizer replacement
The 4 1/8'' (104.8mm) Spiral Blades Drilling Stabilizer is designed to enhance hole straightness and reduce vibration in directional drilling, featuring 4 high-strength alloy blades with 30° spiral angle. The body (API 5DP thread) is made of 4140 alloy steel (HRC 38-42), with tungsten carbide hardfacing on blade edges (55HRC) to resist abrasive wear. Its centralizer diameter (102mm) provides optimal clearance for 4 1/2'' drill pipes, while the 1.2m length ensures effective lateral stabilization. The dynamic balance grade (G2.5) minimizes harmonic vibrations across the 150-250 RPM operating range.
30° spiral blade angle reduces stick-slip frequency by 35% through improved torque transfer, as validated by torsional vibration tests (ASTM D4065)
15mm blade thickness and 80mm spacing balance cuttings evacuation (500 GPM capacity) and lateral support (stiffness 20kN/m), ideal for 20°-60° deviated wells
Finite element analysis (FEA) optimized blade profile reduces resonant frequency by 25% compared to straight-blade designs
Plasma-transferred arc (PTA) hardfacing (WC-12Co) on blade tips increases abrasion resistance by 50% in quartz-rich formations, with wear rate <0.1mm/100m
30μm chromium-plated body resists corrosion in saltwater mud (3.5% NaCl), passing 1000-hour salt spray test (ASTM B117)
8mm fillet radius at blade roots reduces stress concentration by 30%, preventing fatigue failure in high-frequency vibration environments
Compatible with both roller cone and PDC bits in 4-6'' hole sizes, field-proven in both vertical (Texas Barnett shale) and horizontal (North Sea chalk) applications
28kg lightweight design reduces hook load by 10% compared to similar stabilizers, improving tripping speed by 15%
Custom blade pitch (25°-35°) available based on formation brittleness index, optimized via client-specific drilling dynamics modeling
Directional drilling in laminated shale formations (e.g., Eagle Ford Shale with 45° bedding planes)
Horizontal well drilling in interbedded sandstone/mudstone sequences requiring 0.5°/30m inclination control
Slim hole drilling (4-6'') for geothermal exploration in granite intrusions
Reaming operations to correct borehole ovality (>5%) in soft-sediment basins
Blade Wear Indicator: Replaceable tungsten carbide buttons (10mm diameter) with color-coded wear scales, enabling quick visual inspection during tripping
Thread Protector: Heavy-duty plastic cap (HDPE, UV-stabilized) with steel insert, meeting API Spec 5CT thread protection requirements
Alignment Tool: Laser-guided device (accuracy ±0.1°) for precise stabilizer positioning relative to bend subs in directional assemblies
Engineering Customization: Tailored blade geometry using client-provided wellbore data (e.g., dogleg severity, mud properties) for optimal vibration control
Material Traceability: Full material test report (MTR) including chemical composition, heat treatment records, and mechanical properties (tensile, impact)
Performance Guarantee: Independent third-party testing shows 10% faster ROP due to reduced bit bounce, backed by 30-day performance warranty
Cost Efficiency: Extended service life (200+ hours) reduces non-productive time (NPT) by minimizing tripping for stabilizer replacement
