1. Description

Casing and Tubing are important components in the main part of oil well construction. All well drilled for the use in oil and gas production must be cased with materials with sufficient strength and functionality.

Casing is the major structural component of a well. Casing pipe lines the borehole. It is subject to axial tension by its dead weigh, internal pressure by fluid purging, and external pressure by surrounding rock formations. Casing is particularly exposed to axial tension and internal pressure by the pumped oil or gas emulsion. Casing is needed to: Maintain borehole stability

- Prevent contamination of water sands

-Isolate water from production formations

-Control well pressure during drilling,production, and workover operation

-Casing provides locations for the installation

-Blowout preventers

-Wellhead equipment

-Production packers

-Production tubing

The cost of casing is a major part of the overall well cost, so selection of casing size, grade, connectors, and setting depth is a primary engineering and economic consideration.

Size Range: 1.660"- 20"

Seamless/ERW

Grade: J-55, K-55, N-80, L-80, L-80HC, 13CR, 22CR, 25CR, P-110, P-110HC, Q125 as well as Sour Service

Thread: LTC, STC, BTC, Premium

Casing and Tubing

• Used for sidewall.
• Standard: API 5CT
• Steel Grade: J55, K55, N80, L80, C90, T95, P110, Q125, V150
• Dimension: 4 1/2"--30"
• Connection: BTC, STC, LTC
                      Premium connection (VAM/ VAM TOP/ Hunting/ Tenaris-Hydril/ JFE/ TPCO      Premium Connection )

Technical Characteristics:
High thread bonding strength with good anti-thread gluing ability.
The steel yield strength is bigger than API standard.
Big OD size, high steel grade with full size available…

If you are interested in our product, please contact us, and for more information.