18-5/8" 87.5# J55 BTC Seamless Casing (R3) – API 5CT, Range 3, Standard Service

The 18-5/8" 87.5# J55 BTC Seamless Casing (R3) is a standard-duty casing designed for use in surface and shallow intermediate well sections. Manufactured to API 5CT specifications, this casing is made from J55 steel, which offers reliable tensile strength and moderate resistance to corrosion, making it ideal for wells with non-sour environments.

The casing features a BTC (Buttress Thread Connection), known for its robust tensile load handling and fast make-up, making it suitable for vertical and slightly deviated wells. The R3 length (approx. 40–42 ft) offers operational efficiency by reducing the total number of joints in a string, thus decreasing installation time and enhancing well integrity.

This casing is suitable for use as a surface casing string, protecting freshwater zones, supporting blowout preventers, and serving as structural support for upper wellbore sections.

Specifications:

– Outside Diameter: 18-5/8" (473.1 mm)
– Weight: 87.5 lb/ft (130.2 kg/m)
– Steel Grade: J55 (API 5CT) – Standard Strength, Non-Sour Service
– Connection Type: BTC – Buttress Thread Connection
– Thread Type: API BTC, non-premium
– Length Range: R3 (Approx. 40–42 ft / 12–13 m)
– Pipe Type: Seamless
– Standard Compliance: API 5CT
– Condition: Brand New / Unused
– Certification: Mill Test Certificate (MTC), API Monogram available upon request

Performance Notes:
– J55 is suitable for shallow to medium-depth wells in non-H₂S environments
– BTC connection ensures fast make-up and strong axial load handling
– Seamless construction improves integrity against collapse and burst
– R3 length minimizes total joint count and improves casing string stability

Availability:
Available for immediate delivery. Contact us to confirm quantity, pricing, origin, and shipping terms.

For further specifications or to inquire about this equipment and ReflowX's logistics services, Please contact ReflowX at info@reflowx.com