Types of drill pipes

Are you interested in the characteristics of the types of drill pipes? Supplier Avek Global proposes to buy a drill pipe of any type, both domestic and foreign, at an affordable price in a wide range. We will ensure the delivery of products to any point of the continent. The price is optimal.

Classification of drill pipes

• TBN — with outer ends;
• TBV — with internal ends;
• ТБНК — with stabilizing belts and ends planted outwards;
• TWBC — with belts and ends planted inside;
• ТППН, ТБПВ, ТБПК — with welded locks;
• ABT (or LBT) is a separate group of products made from aluminum alloys.

When drilling wells of great depth it is recommended to use a pipe with welded locks and with a stabilizing belt. When drilling a vertical shallow well or an inclined well — a pipe with internal and external ends, as well as with locks. ,

International varieties

International types of drill pipes include standard API classes (E-75, X-95, G-105 and S-135).

1. • The Class API drill pipe defines the technical conditions for the supply of steel pipes with the prepared ends of the pipe body and welded joints for use in drilling and production processes in the oil and gas industry. The wall thickness, the required impact strength and the yield stress of the pipe material are determined. Additional mandatory requirements are also established.
2. • Class E drill pipe is characterized by the lowest yield strength. It is able to withstand the maximum permissible percentage of stretching or deformation before fracture than the higher strength classes of drill pipes. Such a pipe is more resistant to corrosion and cracking. Class E is used in medium depth boreholes. The grades X-95, G-105 and S-135 are considered high-strength. They have higher yield stress values, which is necessary for servicing deeper wells.

Proprietary classes

Such drill pipes are characterized by increased performance characteristics and are designed for use in acidic environments, with a critical level of well depth and special user requirements. Acid maintenance brands are characterized by increased resistance to sulfide corrosion. This kind of corrosion can occur in the presence of hydrogen sulphide in the well. The presence of hydrogen in combination with increased stresses, low temperatures, low pH and high chloride content reduces the plasticity of the steel grades, leaving them susceptible to spreading and fracturing the crack. Supplier Avek Global proposes to buy a drill pipe of any type, both domestic and foreign, at an affordable price in a wide range. We will ensure the delivery of products to any point of the continent. The price is optimal.

Special applications

Critical classes of service are resistant to corrosion in the presence of high gas concentrations. They are an economically viable alternative, which is used in water-pressure systems.

Length range

The drill string consists of several sections. Each pipe segment, called a single pipe segment, is classified into three lengths by the API; R1, R2 and R3. Range 1 (R1) is the shortest in length. Range 2 (R2) is the standard length of the drill pipe. Range 3 (R3) is used to drill deep water wells. The increased length reduces the number of tool joints on each drill pipe stand.

Diameter

The outside diameter of the drill pipe is selected based on the diameter of the wellbore. To effectively circulate the drilling fluid and minimize pressure losses, the ratio of the outer diameter of the drill pipes to the borehole diameter should be about 0.6.

Buy. Supplier, price

about production at an affordable price in a wide range. We will ensure the delivery of products to any point of the continent. The price is optimal. We invite you to partner cooperation.