Product Overview
Our Inconel 718 coiled tubing downhole tools are manufactured from premium nickel-chromium superalloy, offering exceptional corrosion resistance and mechanical strength retention at high temperatures. Designed for the most extreme downhole environments including high-temperature geothermal wells, deep HPHT oil and gas wells and corrosive sour service applications, Inconel 718 tools maintain their mechanical properties at temperatures where conventional alloy steels begin to degrade. The material offers outstanding resistance to pitting, crevice corrosion, sulfide stress cracking and hydrogen embrittlement. Each tool is precision machined from certified Inconel 718 bar stock with full material traceability, then heat treated to the optimal age-hardened condition for the best combination of strength and corrosion resistance.
Core Features & Benefits
- Premium Inconel 718 nickel-chromium superalloy construction
- Excellent mechanical property retention up to 1300°F (704°C)
- Superior resistance to sulfide stress cracking and hydrogen embrittlement
- Outstanding pitting and crevice corrosion resistance in chloride environments
- High tensile and yield strength comparable to high-strength alloy steels
- Full material traceability with certified Mill Test Reports
- NACE MR0175 compliant for H₂S sour service
- Suitable for HPHT, geothermal, sour and highly corrosive well environments
- Available in all standard CT downhole tool configurations
Technical Specifications
| Property | Inconel 718 (Age Hardened) | Standard Alloy Steel (4140) |
|---|---|---|
| Yield Strength | 150,000 - 180,000 PSI | 110,000 - 130,000 PSI |
| Tensile Strength | 180,000 - 210,000 PSI | 130,000 - 150,000 PSI |
| Max Service Temperature | 1300°F (704°C) | 800°F (427°C) |
| Corrosion Resistance | Excellent (SSC/HIC/Cl- Resistant) | Moderate (Needs Coating) |
| NACE MR0175 Compliance | Yes (Inherent) | Yes (With Hardness Control) |
Custom tool configurations and material specifications available upon request.
Typical Applications
- High-temperature geothermal well drilling and intervention
- Deep HPHT oil and gas well completion and workover
- Sour gas well operations with high H₂S and CO₂ concentrations
- Offshore subsea well intervention with corrosive seawater exposure
- Chemical injection and acid stimulation in corrosive environments
- High-temperature EOR steam flood and SAGD operations
Advantages Over Standard Alloy Steel Tools
- Maintains mechanical strength at temperatures where alloy steels soften and creep
- Inherent corrosion resistance eliminates need for protective coatings or inhibitors
- Extended service life in corrosive environments reduces frequency of workover interventions
- Higher strength-to-weight ratio allows more compact tool designs
- Excellent fatigue resistance for cyclic loading applications
- Superior galling resistance for threaded connections in high-torque applications
- Full recyclability of Inconel alloy material at end of service life
FAQ
Q: What is the maximum operating temperature for Inconel 718 tools?
A: Inconel 718 maintains excellent mechanical properties up to 1300°F (704°C). For downhole tool applications, the practical operating limit depends on the specific sealing elements used in the tool assembly.
Q: Are Inconel 718 tools NACE MR0175 compliant?
A: Yes, Inconel 718 is inherently resistant to sulfide stress cracking and meets NACE MR0175 requirements for sour service in its age-hardened condition.
Q: What tool types are available in Inconel 718?
A: All standard coiled tubing downhole tools including connectors, jars, accelerators, centralizers and specialty tools can be manufactured in Inconel 718.
Q: What is the typical lead time?
A: Due to specialized material sourcing and machining requirements, Inconel 718 tools typically require 20-35 working days.
Q: What documentation is provided with Inconel tools?
A: Complete material test certificates, PMI verification, hardness testing reports and NACE compliance documentation.
Get Custom Datasheet & Project Quotation
We manufacture full series Inconel 718 downhole tools with complete material certification and NACE compliance. Contact our engineering team with your well conditions, temperature and pressure requirements for detailed technical proposal and competitive pricing.
