7in API5CT ExtremeGrip Casing 10.36mm Wall‌

9⅝" (244.5mm) API5CT C110 Thermally Conditioned Casing‌
‌Wall Thickness‌: 11.99–19.17mm
‌Material‌: Microalloyed Steel (C110 Grade, Quenched & Tempered)
‌Standard Compliance‌: API 5CT Annex H | ISO 13679 CAL IV

‌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 includewww.longkailai.com