Casing 4 1.2″ /TMK/Grade N80/ Connection UP-FJ/Range R3/API 5CT/N.W: 15.1 ppf

 Casing 4 1.2″/TMK/ Grade N80/ Connection UP-FJ/ Range R3/ API 5CT/ N.W: 15.1 ppf

:Technical Specifications & In-Depth Engineering Description

This premium 4 1.2 inch OCTG casing, manufactured by the world-renowned Russian mill TMK (Trubnaya Metallurgicheskaya Kompaniya), is specifically designed for production casing and liner applications in moderate-depth wells. Fully certified to API 5CT with Grade N80 and a Nominal Weight of 15.1 ppf, this pipe provides an optimal balance of cost-efficiency, mechanical integrity, and hydraulic performance

:Key Parameters

Grade: N80 (typically N80-Q – Quenched & Tempered)

Minimum Yield Strength: 80,000 psi

Minimum Tensile Strength: 100,000 psi

Range: R3 (Length per joint: 38 – 45 feet / 11.6 – 13.7 meters)

Nominal Weight: 15.1 ppf (Approx. 22.5 kg/m) – Lightweight, thin-wall casing

Connection Type: TMK UP-FJ (Flush Joint) – Premium, metal-to-metal seal, OD-flush connection

anufacturing Process: Seamless / Quenched & Tempered (Q&T) Heat Treatment

Standard: API 5CT (with proprietary TMK UP-FJ connection)

?Why Choose This TMK N80 Casing with UP-FJ Connection (Range R3)

:Optimized for Production Zones

The N80 grade offers sufficient yield strength (80,000 psi) for most production environments while providing better resistance to Sulfide Stress Cracking (SSC) in sour service compared to higher grades like P110

:Operational Efficiency with Range R3

Using Range 3 (R3) joints reduces the number of connections per well by approximately 25-30% compared to Range 2

:This results in

Faster running times (lower rig costs)

Reduced leak paths

Enhanced structural integrity in deviated and horizontal laterals

:TMK UP-FJ Flush Joint Advantage

This is the standout feature of this product. The UP-FJ connection has an outer diameter nearly identical to the pipe body

:Key benefits

Minimizes annular clearance – ideal for tight spaces (liners inside larger casings)

Reduces risk of differential sticking during rotation and reciprocation

Lower turbulence in annular flow

Metal-to-metal seal with high pressure integrity

Tensile efficiency close to 100% of the pipe body (for N80 grade)

:TMK Metallurgical Quality

TMK’s proprietary quench & temper heat treatment ensures uniform hardness distribution and consistent mechanical properties along the entire pipe length

:Primary Applications

Production Casing in onshore oil and gas wells (moderate depths up to ~3,000 meters / 10,000 feet)

Liner strings hung inside larger casings (e.g., 7″ or 9 5/8″)

Low-to-medium pressure water wells, geothermal wells, and industrial injection wells

Multilateral wells where minimal OD interference is critical

Workover and completion operations requiring flush-joint clearance

:Quality Assurance

100% Non-Destructive Testing (NDT) per API 5CT

Certified Mill Test Reports (MTR) with full traceability

TMK proprietary thread inspection and coating (as per API 5B or TMK standard)