Core Purpose & Equipment Compatibility
This catalog features stock drilling accessories exclusively engineered foronshore and offshore oil & gas drilling rigs supporting 13-3/8”, 9-5/8”, 7”, and 5” casing/drill pipe sizes. Tailored to drilling contractors, rig maintenance teams, oilfield safety supervisors, and procurement managers, these products address the core demand of mitigating risks from heavy-load handling, cyclic mechanical stress, and harsh drilling environments (vibration, corrosion, mud contamination). Their primary purpose is to ensure safe casing running, efficient drill pipe handling, and accurate real-time drilling parameter monitoring, enhancing operational safety, improving workflow efficiency, and ensuring compliance with industry drilling standards.
1. Casing & Drill Pipe Lifting Equipment
Casing and drill pipe lifting equipment are critical for safe handling and running of casing/drill pipe during drilling and well completion phases. Operating under extreme heavy-load stress and cyclic impact, these components are prone to wear on contact surfaces, locking mechanisms, and structural joints, which can lead to lifting failures and safety hazards. Engineered with high-strength, wear-resistant materials and precision locking systems, they ensure reliable load-bearing capacity and stable operation in high-risk lifting scenarios.
1.1 Side Door Casing Elevators
Side door casing elevators are designed for quick and secure engagement with 13-3/8”, 9-5/8”, 7”, and 5” casing strings, enabling efficient casing running operations. Their side-door structure simplifies casing loading, but frequent opening/closing and heavy-load contact make latches, hinge pins, and gripping surfaces prone to wear. These elevators feature robust alloy steel construction and enhanced sealing, ensuring secure gripping and resistance to drilling mud corrosion.
No. | Product Name | Specification | Material | Primary Wear Causes | Damage Prevention Notes |
1 | Side Door Casing Elevator | 13-3/8”, 9-5/8”, 7”, 5” | Main body: Forged alloy steel (AISI 4140, heat-treated to HRC 28-32); Latch mechanism: AISI 4340 alloy steel; Gripping surfaces: Hard chrome plating; Seals: Nitrile butadiene rubber (NBR) | 1. Heavy-load contact with casing causes abrasive wear on gripping surfaces; 2. Cyclic opening/closing leads to hinge pin wear and latch fatigue, compromising locking reliability. | 1. Inspect gripping surfaces and latches before each use; recondition or replace if wear exceeds 2mm; 2. Lubricate hinge pins and latch mechanisms daily with high-pressure anti-wear grease; ensure latches fully engage before lifting. |
1.2 Single Joint Elevators
Single joint elevators are specialized for lifting individual 13-3/8”, 9-5/8”, 7”, and 5” drill pipe or casing joints during makeup/breakout operations. Frequent load cycles and mechanical impact from joint positioning make locking dogs and pin connections prone to wear. Lightweight yet high-strength, these elevators balance maneuverability with load-bearing capacity, ensuring efficient joint handling without compromising safety.
No. | Product Name | Specification | Material | Primary Wear Causes | Damage Prevention Notes |
1 | Single Joint Elevators | 13-3/8”, 9-5/8”, 7”, 5” | Main body: Forged AISI 4130 alloy steel; Locking dogs: Tungsten carbide-tipped alloy steel; Pins: Stainless steel 316L; Fasteners: Grade 8.8 alloy steel | 1. Repeated contact with drill pipe/casing joints causes wear on tungsten carbide tips; 2. Impact loading during misalignment leads to pin bending and body stress concentrations. | 1. Use guide tools to ensure proper alignment during joint engagement; avoid impact loading; 2. Inspect locking dog tips monthly; replace if tip thickness is reduced by 30% or more; store elevators on soft padding to prevent damage. |
1.3 Rotary Casing Slips
Rotary casing slips secure 13-3/8”, 9-5/8”, 7”, and 5” casing strings in the rotary table during drilling, providing stable support under static and dynamic loads. Friction from casing rotation and uneven weight distribution cause rapid wear on slip inserts, while mud contamination accelerates component corrosion. These slips feature self-centering designs and high-friction inserts, ensuring secure casing grip and preventing casing damage during rotation.
No. | Product Name | Specification | Material | Primary Wear Causes | Damage Prevention Notes |
1 | Rotary Casing Slips | 13-3/8”, 9-5/8”, 7”, 5” | Body: Heat-treated AISI 4140 alloy steel; Slip inserts: Aramid fiber-reinforced rubber; Adjustment bolts: Alloy steel Grade 8.8; Springs: 65Mn alloy steel | 1. Frictional contact with rotating casing causes wear on slip inserts; 2. Mud and debris buildup leads to corrosion of the slip body and jamming of adjustment mechanisms. | 1. Ensure casing is centered to distribute load evenly; replace inserts when friction material thickness is less than 5mm; 2. Clean slips thoroughly after each use to remove mud/debris; apply anti-corrosion grease to adjustment mechanisms weekly. |
2. Drilling Monitoring Instruments
Drilling monitoring instruments provide real-time tracking of critical parameters (weight, stroke, RPM, pressure), enabling operators to optimize drilling efficiency and detect anomalies (e.g., pump failure, wellbore instability) early. Operating in high-vibration, dusty, and temperature-fluctuating environments, these instruments are prone to sensor drift, display damage, and electrical connection failures. Ruggedized designs and precision sensing technologies ensure accurate, reliable performance for data-driven drilling decisions.
2.1 Weight Indicator
Weight indicators measure drill string weight and hook load in real time, critical for controlling drilling pressure and preventing overloading. Vibration-induced sensor drift and moisture ingress are primary failure risks, compromising reading accuracy. This instrument features an explosion-proof housing and robust pressure transducer, ensuring reliable performance in hazardous oilfield environments.
No. | Product Name | Specification | Material | Primary Wear Causes | Damage Prevention Notes |
1 | Weight Indicator | Range: 0-500 tons (customizable); Accuracy: ±0.5% | Housing: Cast aluminum alloy (ATEX/IECEx certified explosion-proof); Sensor: Stainless steel 316L pressure transducer; Display: Shatterproof acrylic; Internal components: Brass alloy | 1. Continuous drilling vibration causes sensor calibration drift; 2. Moisture and dust ingress leads to internal circuit corrosion and display damage. | 1. Calibrate monthly using a certified weight standard; 2. Inspect housing gaskets regularly; replace if cracked or hardened; keep the display clean and free of mud buildup. |
2.2 Stroke, RPM & Pressure Monitoring Instruments
These instruments track pump stroke rate, rotary table (RT) RPM, and drilling fluid pressure, providing key data for optimizing drilling performance. Mechanical counter gears, inductive sensors, and pressure diaphragms are prone to wear from vibration and pressure surges. Designed with anti-vibration mounts and surge protection, they ensure consistent accuracy in harsh drilling conditions.
No. | Product Name | Specification | Material | Primary Wear Causes | Damage Prevention Notes |
1 | Stroke Counter, RPM for RT, Pressure Gauges | Stroke counter: 0-100 strokes/min; RPM range: 0-300 rpm; Pressure gauge: 0-10,000 psi | Counters: Hardened steel gears; RPM sensor: Stainless steel 316L inductive sensor; Pressure gauge case: Stainless steel 304; Diaphragm: Hastelloy C-276 | 1. Vibration causes wear on counter gears and sensor mounting brackets; 2. Pressure surges damage gauge diaphragms; dust buildup impairs sensor signal. | 1. Mount instruments on anti-vibration brackets; inspect mounting hardware weekly; 2. Install pressure snubbers to dampen surges; clean sensors daily to remove debris; replace gauges if needle sticks or reads inaccurately. |
2 | Rotary RPM Counter and Pumps Stroke Counter | Rotary RPM: 0-300 rpm; Pump stroke: 0-120 strokes/min; Output: Analog/digital | Housing: IP67-rated glass fiber-reinforced plastic; Sensors: Stainless steel 316L inductive proximity sensors; Electrical connections: Waterproof M12 connectors | 1. Moisture ingress damages electrical connections; 2. Vibration loosens sensor mounts, causing signal interference and inaccurate readings. | 1. Inspect waterproof connectors weekly for moisture; apply dielectric grease to connections; 2. Secure sensors and cables with cable ties to minimize vibration; recalibrate every 2 months to ensure accuracy. |
Procurement Guidance
All stock products in this catalog comply with API Spec 7K (Drilling and Well Servicing Equipment) and API Spec 16A (Wellhead and Christmas Tree Equipment) standards, ensuring perfect compatibility with 13-3/8”, 9-5/8”, 7”, and 5” casing/drill pipe sizes. For drilling operations seeking to enhance safety, reduce downtime, and secure readily available high-quality spares, these stock products offer a reliable solution. Contact our professional sales team to discuss your specific needs, confirm stock availability, obtain detailed technical specifications, and secure authentic, industry-compliant components tailored to your rig maintenance and operational requirements.
Technical Reference Standards & Support
All products adhere to international industry standards, including API Spec 7K, API Spec 16A, ISO 9001 Quality Management System, ATEX/IECEx 60079 (explosion-proof for instruments), and ASTM A193/A194 (high-pressure fasteners). Each component undergoes rigorous testing: load-bearing capacity (150% of rated load), pressure burst testing, corrosion resistance (salt spray and H₂S), and vibration endurance. For detailed installation guidelines, maintenance schedules, and troubleshooting support, consult our dedicated technical team to ensure optimal performance and operational safety.
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