Octg – For Ensuring Smooth Operations In The Field

By Author: Bluesteel Services
Total Articles: 25
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Oil Country Tubular Goods (OCTG) can be used in a number of applications. For ensuring smooth operations in the field, an organisation has to make sure that they adhere to the required specification. Go through this article to learn about the features, specifications and applications of OCTG.

Oil Country Tubular Goods (OCTG) is a term used in operation of oil wells, which refers to casing, tubing, line and other types of pipes. Casing pipe is used to line the hole and comes in many sizes ranging from 30” to 3 ½” in diameter. It is also used as the structural retainer for the walls of a drilled hole. Tubing is a pipe through which the oil or gas is produced from the well bore. It is inserted in the well during its completion operations. Tubing joints are generally around 30 ft. long with 4 ½” to 1 ½” diameter.

Both casing and tubing use special connectors to screw the joints together. These connectors come in many sizes and features depending on the intended use. Connections can sometimes separate items, they are called couplings or they can be integral as a part of the tube. The third type of OCTG is ...
... drill pipe, which is different from tubing and casing. It is less expensive and less rigorously used than tubing or casing. These pipes are divided into different categories on the basis of their size, linear mass, external diameter, thickness of the wall, API 5CT Grade, strength and PPF.

Drill pipe and casing pipe are similar in chemical composition and also overlap in terms of API minimum requirements for wall thickness and external diameter. The mechanical strength requirements for casing and tubing pipes also overlap with those for drill pipes. However, high-end drill pipes have significantly more API strength than those for casing and tubing pipes. These pipes differ in terms of length and weight per foot. Although drill, casing and tubing pipes differ in nature, they can be used for the same general purpose.

OCTG pipes come with many features. They are high precision in size and shape with excellent comprehensive mechanical properties at high temperature. OCTG pipes have high collapse strength and good corrosion resistance. They are easy to connect with their high connection strength and steal ability.

There are numerous applications of Oil country tubular goods OCTG. They can be used for ship-building, petroleum cracking and construction of deep foundations. OCTG casing pipes can also be used as road bore casing, culverts casing, open cut casing, drilling casing, surface casing, rathole casing, tunnel casing, anti-corrosion casing, high temperature casing and premium thread connection casing and tubing. They are used in construction of chemical fertilizer equipment and drawing oil equipment and structure purposes. OCTG pipes have many applications such as, fishing tools, couplings, float shoe equipment, pup joint blanks and blast joint blanks.

Casing and tubing pipes are also useful for underground utility casing such as water mains, gas pipes, electrical power cables, fibre optic cables, etc. They are also used in other construction applications. During horizontal underground boring projects under streets, highways, railroads, rivers, and streams, casing and tubing pipe can be jacked in segments into an augured hole.

The quality of these goods has a role in ensuring smooth operations in the field. So make sure that you get these from someone who can be relied upon.

The writer is associated with BlueSteel Services LLC, a leading domestic and offshore supplier of finished and semi-finished steel goods including, pipe pilling, steel coil, electrical conduit, API 5CT, casing pipe, fire sprinkler pipe, etc.