It is a pipe rod that is inserted into the inner cavity of the tubing. Both ends are machined with API threads, and it is connected in series using a coupling collar, forming a channel for the circulation of oil and gas. After the completion of an oil or gas well, it is responsible for transporting the underground crude oil and natural gas to the surface. It also performs functions such as water injection, steam injection, acidizing fracturing, and the transportation of working media for underground operations.
Product specifications: 1.050” to 4-1/2”.
Steel grades: H40, J55, L80, R95, N80-1/Q, C90, T95, P110.
We offer tubing meeting API 5CT standard steel grades, including standard pipes NU and EU with additional thickness. The product dimensions cover all external diameters, wall thickness specifications, and all types of threads specified in the API 5CT standard.
Tooth profile: 60° dome-shaped, round-bottomed cone thread with a taper ratio of 1:16.
Pitch: 8 teeth/in (3.175 mm), 10 teeth/in (2.54 mm).
Structure: The end of the pipe does not have additional thickness; it is connected using a coupling ring; there are no flanges.
Sealing: Tooth surface + threaded grease seal, non-metallic auxiliary seal.
Features: Easy to process, fast to fasten.
Applicable to: shallow wells, conventional vertical wells, low-pressure oil and gas wells.
The end of the pipe is flattened and thickened, resulting in longer thread engagement and increased stress resistance.
Superior tensile strength, torsional resistance, and fatigue resistance compared to NU.
The sealing is more reliable, with less likelihood of disconnection or leakage.
Applicable to medium to deep wells, inclined wells, wells with reciprocating pumps, and wells subjected to alternating loads.
Compliant with API 5CT specifications, the threads, steel grades, and dimensions are uniform, making them suitable for use worldwide in oil and gas fields. They exhibit good interchangeability and make it convenient to select coupling rings.
High-quality alloy steel is used, with stable metallurgical composition and uniform microstructure after heat treatment, meeting the requirements for strength and toughness.
The lengths of individual rods are uniform, and they have an appropriate weight. They enable quick well-drilling and operation operations, and are easy to construct.
We have been deeply involved in the production of petroleum pipe materials for an extended period, possessing advanced equipment and large-scale production capabilities. Our product quality is stable and reliable.
The manufacturing process and production capacity are mature and stable, offering high value for money.
Our team of professional technical service experts is available 24/7 to provide on-site technical support for pipe installation work, helping to ensure the long-term efficient operation of equipment.
