Oil Pipe Coupling, Casing Coupling, High-Strength Coupling for Oil Pipeline, Anti-Corrosion Coupling, Oil Pipeline Coupling

4

## VAM FJL Special Connector

 Introduction

The VAM FJL Special Connector is a highperformance solution for connecting casing pipes in the oil and gas industry. Manufactured by Tianjin Longkai Lai Company, this connector is designed to provide exceptional strength and sealing capabilities. As the industry increasingly demands more reliable and efficient connections, the VAM FJL connector stands out as a vital component in ensuring the integrity of oil and gas operations.

The VAM FJL connector is engineered to meet the specific challenges faced in highpressure environments, making it an ideal choice for deep well drilling and offshore applications. Its design focuses on providing a secure, leakproof connection that enhances the overall performance of the casing system.

 Specifications

The specifications of the VAM FJL Special Connector are crucial for its performance in demanding applications. Key specifications include:

 Connection Type: Threaded connection with highperformance sealing. The threaded design ensures a secure fit between pipes, preventing slippage and maintaining integrity under pressure.

 Material: Highstrength alloy steel for durability. The choice of material is critical for ensuring that the connector can withstand the harsh conditions present in oil and gas operations.

 Pressure Rating: Suitable for highpressure applications up to 15,000 psi. This high pressure rating allows the connector to be used in some of the most challenging drilling environments.

 Temperature Range: Effective in environments ranging from 20°C to 120°C. The ability to perform in extreme temperatures is essential for connectors used in various geographical locations and drilling conditions.

 Special Features

The VAM FJL connector includes several key features that enhance its performance:

# 1. Enhanced Thread Design

The enhanced thread design prevents slippage and ensures a secure fit between pipes. This feature is particularly important in highpressure applications where the integrity of the connection is critical.

# 2. CorrosionResistant Coating

The connector is coated with a corrosionresistant material that protects against environmental factors that can lead to degradation. This coating extends the life of the connector and enhances its reliability in harsh conditions.

# 3. Easy Installation

Designed for quick and straightforward assembly, the VAM FJL connector reduces downtime during operations. This ease of installation is essential for maintaining operational efficiency, particularly in fastpaced drilling environments.

 Pricing Advantage

Tianjin Longkai Lai Company offers the VAM FJL Special Connector at competitive prices. Our efficient production processes and direct sourcing of materials allow us to provide highquality connectors without excessive costs.

By maintaining a robust supply chain and investing in advanced manufacturing technologies, we can produce highquality connectors at lower costs. This pricing advantage is crucial for our customers, who often operate in competitive markets where cost efficiency can significantly impact overall project budgets.

 Applications

The VAM FJL Special Connector is ideal for:

# 1. Deep Well Drilling Operations

In deep well drilling, the VAM FJL connector ensures secure connections under highpressure conditions. Its robust design allows it to handle the stresses encountered during drilling, providing peace of mind to operators.

# 2. HighPressure Environments

Designed to withstand the rigors of highpressure oil and gas extraction, the VAM FJL connector is essential for ensuring the integrity of the casing system in challenging conditions.

# 3. Offshore and Onshore Oil Fields

The versatility of the VAM FJL connector makes it suitable for various applications in different environments. Whether in offshore drilling or onshore operations, the connector provides reliable performance.

# 4. Applications Requiring Secure Connections

In situations where leakproof seals are critical for safety and efficiency, the VAM FJL connector excels. Its design ensures that connections remain secure, minimizing the risk of leaks that could lead to environmental hazards.

 Quality Control

At Tianjin Longkai Lai Company, we implement strict quality control measures for our VAM FJL connectors:

# 1. Material Inspection

All materials used in the production of VAM FJL connectors are inspected for compliance with industry standards. This ensures that only highquality materials are used in manufacturing.

# 2. InProcess Monitoring

Continuous quality checks during manufacturing help maintain high standards. This proactive approach allows us to detect and resolve any issues promptly.

# 3. Final Testing

Each connector undergoes rigorous testing to ensure performance and reliability. This includes dimensional checks, pressure tests, and surface inspections to verify that the VAM FJL connectors meet the required specifications.

 Conclusion

The VAM FJL Special Connector from Tianjin Longkai Lai Company represents the pinnacle of engineering in connector design. Our commitment to quality and performance ensures that you receive a reliable solution for your oil and gas connections. By choosing the VAM FJL connector, you are investing in a product that enhances the safety and efficiency of your operations.

Tianjin  Grand Victory Petroleum Equipment Co., Ltd. is a comprehensive enterprise for production, processing, sales, technology research and development, and spot storage. Located in Jinghai District, Tianjin, China, it was founded in 2008 with a registered capital of 11.18 million yuan. It has import and export rights, ISO9001 quality system certification, American Petroleum Institute API 5CT certification and a number of national patent certificates. The production workshop is equipped with several types of equipment such as highprecision CNC lathes, thread tightening machines, hydraulic presses, etc., and complete inspection and measurement instruments. Products include J55, K55, N801/Q, L80, P110 and other oil casing, couplings, Pup Joint、Xover （Cross over）; 80S, 90S, 110S, L801Cr/3Cr/13Cr and other highcorrosion resistant oil casing spot storage, with a longterm reserve of about 2,000 tons. At the same time, it undertakes the processing and copper plating of special sealing threads such as direct connection, wedge shape, double step, variable pitch, etc. for oil well pipes and petroleum accessories, with fast delivery and excellent quality, reducing costs and increasing efficiency for customers.  Our vision: to build an international oil pipeline equipment enterprise with integrity and innovation. We welcome leaders and friends from all walks of life to visit us for cooperation and common development.

Advantages/Features:

1.Established in 2008 with 17 years of operation, registered capital of 11.18 million CNY, workshop area of 8,000 m², and annual turnover of 20 million CNY.

2.Possesses import/export rights, ISO 9001 certification, API 5CT certification, and multiple national patents.

3.Equipped with high-precision CNC lathes, thread fastening machines, hydraulic testers, and comprehensive inspection tools.

4.Specializes in producing J55, K55, N80-Q, L80, and P110 oil casings, couplings, subs, and adapters.

5.Maintains 2,000 tons of high-resistance corrosion-resistant oil casings (e.g., 80S, 90S, 110S, L80-1Cr/3Cr/13Cr) in stock.

6.Offers custom threading (e.g., wedge-type, double-step, variable pitch), coating services, and produces over 10,000 specialty threaded components annually.

‌Product Name‌: API-5CT Seamless Casing and Tubing
‌Steel Grade‌: J55, N80, P110, H40, K55, L80, L80-3Cr/9Cr/13Cr,  M65, C90, T95, Q125
‌Material‌: 34CrMo4, H40, J55, K55, N80, L80, M65, C90, T95, P110, Q125
‌Standard‌: API 5CT/ISO 11960
‌Technique‌: Cold Drawn/Hot Rolled
‌Application‌: Oil and Gas Pipes

‌Outer Diameter Ranges‌:

• ‌Tubing‌: 48.26mm~114.3mm (1.05 inches~4 1/2 inches)

• ‌Casing‌: 114.3mm~762mm (4 1/2 inches~30 inches)
  ‌Wall Thickness‌: 2.87mm~30mm (compliant with API 5CT standards)
  ‌Length Ranges‌:

• ‌Tubing‌:

• R1: 6.10m~7.32m

• R2: 8.53m~9.75m

• R3: 11.58m~12.80m

• ‌Casing‌:

• R1: 4.88m~7.62m

• R2: 7.62m~10.36m

• R3: 10.36m~14.63m
  ‌End-Finish Types‌:

• ‌Tubing‌: P, I, N, U

• ‌Casing‌: P, S, B, L

‌Product Features‌:

1. ‌Material Optimization‌:

• Cr-Mo series steel with precise chemical composition control ensures resistance to Sulfide Stress Corrosion Cracking (SSCC).

• Quenching and tempering heat treatment forms a uniform and fine sorbite structure, achieving high hardness and tempering stability.

2. ‌Heat Treatment Process‌:

• Strict temperature-controlled quenching and tempering guarantee consistent mechanical properties, narrow yield strength ranges, and controllable hardness.

3. ‌Sulfide Corrosion Resistance‌:

• Microstructure of fully tempered martensite is suitable for H₂S-containing acidic oil and gas environments.

• Passes NACE standard tests, maintaining excellent SSC resistance even under 85%~90% SMYS (Specified Minimum Yield Strength).

‌Inspection Standards‌:

• ‌Non-destructive Testing‌:

• Full-body inspection for longitudinal/transverse defects on inner and outer surfaces, with standard notch depth ≤5% of wall thickness.

• Compliant with API 5CT standards, ensuring freedom from cracks, pores, and other defects.

‌Packaging & Delivery‌:

• ‌Packaging‌: Seawater-resistant steel shelves, iron pallets, or customized solutions per customer requirements.

• ‌Delivery Time‌: 20–55 days (varies based on order size and process complexity).

• ‌Minimum Order Quantity (MOQ)‌: 20 tons.

‌Application Scenarios‌:

• ‌Sour Oil and Gas Fields‌: High-corrosion environments with H₂S and CO₂.

• ‌Deep/Ultra-Deep Wells‌: Resistant to high pressure and temperatures (up to 200°C+).

• ‌Cementing and Workover‌: Supports wellbore stability and isolates formation fluids.

‌Certification & Surface Treatment‌:

• ‌Certification‌: API pipe certification.

• ‌Surface Treatment‌: Black paint, varnish coating; cross-sectional shape: round.

• ‌Origin‌: China.

‌Note‌: This product is non-secondary processed and supports customization. Contact the supplier for technical agreements.

rrosion after 3-year exposure to brackish groundwater.

‌Specs‌:

Material: J55 steel (Yield strength: 55,000 psi)

Pressure Rating: 2,300psi burst / 1,800psi collapse

Certifications: API 5CT, ISO 11960

‌Support‌: Free API drift testing videos & 45-day delivery to North America

‌Critical Parameters‌

·         ‌Yield Strength‌: 758–862 MPa

·         ‌Charpy V-Notch Impact‌: ≥55J @ -20°C (Arctic Service Compliant)

·         ‌Dimensional Tolerance‌:

o    OD: ±0.65% (API 5CT Table 7)

o    WT: +10%/-8.5%

‌High-Temperature Performance‌

·         ‌Operational Limits‌:

o    ‌Temperature‌: -50°C to +204°C (Full CTE Compensation)

o    ‌H₂S Partial Pressure‌: ≤1.5psi (NACE MR0175/ISO 15156-2 Level II)

·         ‌Coating‌:

o    Internal: 250μm Epoxy-Phenolic Lining (ISO 15741)

o    External: 3LPP FBE Coating (ISO 21809-1)

‌Threaded Connection‌

·         ‌Type‌: TenarisBlue® TBHC Gas-Tight Thread (API 5B Premium)

·         ‌Sealing Capacity‌:

o    Internal Pressure: 138 MPa

o    External Pressure: 116 MPa

·         ‌Torque Monitoring‌: RFID-Embedded Shoulder Tag (Real-Time Data Logging)

‌Applications‌

·         Ultra-deep HPHT wells (≥10,000m TVD, 140MPa Bottomhole Pressure)

·         CO₂-EOR injection wells with cyclic thermal loading

·         Arctic permafrost zones requiring low-temperature toughness

‌Testing & Certification‌

1.   ‌Destructive Testing‌:

o    Full-Scale Fatigue Test (FSFT) @ 90% SMYS × 10⁶ cycles

o    HTHP Autoclave Corrosion Test (30d @ 150°C, 15% HCl)

2.   ‌Non-Destructive Testing‌:

o    Phased Array UT (ASME V Article 4)

o    Eddy Current Inspection for Coating Integrity

‌Packaging & Delivery‌

·         ‌Anti-Corrosion Packaging‌: VCI Shrink Film + Desiccant Capsules (ISO 22088-3)

·         ‌Lead Time‌: 60 Days (CIF Rotterdam Port)

·         ‌Customization‌:

o    Pre-installed RFID Collars for IoT Well Monitoring

o    Field-End Bevel Protection with Biodegradable Caps

‌Formatting Consistency‌:

·         ‌Bolded Headers‌ for hierarchical navigation

·         ‌Dual Units‌: Metric (Primary) / Imperial (Secondary)

·         ‌Risk Mitigation‌: Explicit thermal/chemical limits in red-line text

·         ‌Brand Integration‌: Licensed TenarisBlue® threading and ISO-certified coatings

Advantages/Features:

1.Established in 2008 with 17 years of operation, registered capital of 11.18 million CNY, workshop area of 8,000 m², and annual turnover of 20 million CNY.

2.Possesses import/export rights, ISO 9001 certification, API 5CT certification, and multiple national patents.

3.Equipped with high-precision CNC lathes, thread fastening machines, hydraulic testers, and comprehensive inspection tools.

4.Specializes in producing J55, K55, N80-Q, L80, and P110 oil casings, couplings, subs, and adapters.

5.Maintains 2,000 tons of high-resistance corrosion-resistant oil casings (e.g., 80S, 90S, 110S, L80-1Cr/3Cr/13Cr) in stock.

6.Offers custom threading (e.g., wedge-type, double-step, variable pitch), coating services, and produces over 10,000 specialty threaded components annually.

‌Product Name‌: API-5CT Seamless Casing and Tubing
‌Steel Grade‌: J55, N80, P110, H40, K55, L80, L80-3Cr/9Cr/13Cr,  M65, C90, T95, Q125
‌Material‌: 34CrMo4, H40, J55, K55, N80, L80, M65, C90, T95, P110, Q125
‌Standard‌: API 5CT/ISO 11960
‌Technique‌: Cold Drawn/Hot Rolled
‌Application‌: Oil and Gas Pipes

‌Outer Diameter Ranges‌:

• ‌Tubing‌: 48.26mm~114.3mm (1.05 inches~4 1/2 inches)

• ‌Casing‌: 114.3mm~762mm (4 1/2 inches~30 inches)
  ‌Wall Thickness‌: 2.87mm~30mm (compliant with API 5CT standards)
  ‌Length Ranges‌:

• ‌Tubing‌:

• R1: 6.10m~7.32m

• R2: 8.53m~9.75m

• R3: 11.58m~12.80m

• ‌Casing‌:

• R1: 4.88m~7.62m

• R2: 7.62m~10.36m

• R3: 10.36m~14.63m
  ‌End-Finish Types‌:

• ‌Tubing‌: P, I, N, U

• ‌Casing‌: P, S, B, L

‌Product Features‌:

1. ‌Material Optimization‌:

• Cr-Mo series steel with precise chemical composition control ensures resistance to Sulfide Stress Corrosion Cracking (SSCC).

• Quenching and tempering heat treatment forms a uniform and fine sorbite structure, achieving high hardness and tempering stability.

2. ‌Heat Treatment Process‌:

• Strict temperature-controlled quenching and tempering guarantee consistent mechanical properties, narrow yield strength ranges, and controllable hardness.

3. ‌Sulfide Corrosion Resistance‌:

• Microstructure of fully tempered martensite is suitable for H₂S-containing acidic oil and gas environments.

• Passes NACE standard tests, maintaining excellent SSC resistance even under 85%~90% SMYS (Specified Minimum Yield Strength).

‌Inspection Standards‌:

• ‌Non-destructive Testing‌:

• Full-body inspection for longitudinal/transverse defects on inner and outer surfaces, with standard notch depth ≤5% of wall thickness.

• Compliant with API 5CT standards, ensuring freedom from cracks, pores, and other defects.

‌Packaging & Delivery‌:

• ‌Packaging‌: Seawater-resistant steel shelves, iron pallets, or customized solutions per customer requirements.

• ‌Delivery Time‌: 20–55 days (varies based on order size and process complexity).

• ‌Minimum Order Quantity (MOQ)‌: 20 tons.

‌Application Scenarios‌:

• ‌Sour Oil and Gas Fields‌: High-corrosion environments with H₂S and CO₂.

• ‌Deep/Ultra-Deep Wells‌: Resistant to high pressure and temperatures (up to 200°C+).

• ‌Cementing and Workover‌: Supports wellbore stability and isolates formation fluids.

‌Certification & Surface Treatment‌:

• ‌Certification‌: API pipe certification.

• ‌Surface Treatment‌: Black paint, varnish coating; cross-sectional shape: round.

• ‌Origin‌: China.

‌Note‌: This product is non-secondary processed and supports customization. Contact the supplier for technical agreements.

Tianjin  Grand Victory Petroleum Equipment Co., Ltd. is a comprehensive enterprise for production, processing, sales, technology research and development, and spot storage. Located in Jinghai District, Tianjin, China, it was founded in 2008 with a registered capital of 11.18 million yuan. It has import and export rights, ISO9001 quality system certification, American Petroleum Institute API 5CT certification and a number of national patent certificates. The production workshop is equipped with several types of equipment such as highprecision CNC lathes, thread tightening machines, hydraulic presses, etc., and complete inspection and measurement instruments. Products include J55, K55, N801/Q, L80, P110 and other oil casing, couplings, Pup Joint、Xover （Cross over）; 80S, 90S, 110S, L801Cr/3Cr/13Cr and other highcorrosion resistant oil casing spot storage, with a longterm reserve of about 2,000 tons. At the same time, it undertakes the processing and copper plating of special sealing threads such as direct connection, wedge shape, double step, variable pitch, etc. for oil well pipes and petroleum accessories, with fast delivery and excellent quality, reducing costs and increasing efficiency for customers.  Our vision: to build an international oil pipeline equipment enterprise with integrity and innovation. We welcome leaders and friends from all walks of life to visit us for cooperation and common development.