Introduction to Oil Country Tubular Goods

February 01, 2012 in Blog, OCTG, Pipe by

Oil Country Tubular Goods (OCTG)

Piping products used in the petroleum industry are referred to as Oil Country Tubular Goods (OCTG). These are divided into three different categories: Drill pipe, Casing Pipe and Tubing. Let’s take a deeper look into each of these:

Drill Pipe: Drill pipes are heavy and seamless tubes that rotate the drill bit to assure the circulation of drilling fluid. Most OCTG pipe suppliers offer this product in their oil field supply. The tool joints are paired with 30ft pipes.

Casing Pipe: Casings used in oilfield industrial supply are used to reinforce the structure of the hole while drilling. Casing pipe helps to increase the strength and are available as drill pipes, welded or seamless in a variety of different grades. They are categorized based on the following characteristics:

  • Size
  • Linear Mass
  • Diameter
  • Thickness
  • Finish

Tubing: This is the pipe that gas and oil is produced from the wellbore during completion operations. It is used to extract oil and gas. Like drill pipe, tubing joints offered by OCTG pipe suppliers are typically 30ft in length. They have an attached external thread.

To meet the needs for the growing oil and gas prices, St. Louis Pipe & Supply has developed a department dedicated to any OCTG needs. As a top OCTG pipe supplier, we’ve set high standards for our vendors in order to meet the specific needs in specialized drilling markets.

Oilfield products are used in oil exploration and drilling. Here is a list of a few of our products offered in our oilfield industrial supply:

API C90: Typically used in sour condensate, this is an API controlled yield strength grade with required extensive hardness testing.

API C995: This is not used in sour wells and does not include a hardness requirement.

API T95: Similar to the previously mentioned API C995, this is used in sour condensate wells, and requires extensive hardness testing.

API K55: Commonly used in casings conforming to API specification 5CT, these are general purpose pipes.

API J55: These are general purpose pipes used primarily for tubing application with a lower minimum strength conforming to API specification 5CT.

We also offer general drill pipes, casing pipes and tubing conforming to API standards for deep well drilling as well as oil field supply. You may find what you’re looking for in our complete list of available OCTG tubing and casings.

At St. Louis Pipe & Supply, we have an array of products available in our oil field supply. We offer drill pipe, casing and tubing for all of your on-shore and off-shore drilling and extraction needs. As a leader in the market for over 20 years, we can offer a variety of materials that meet or exceed ASME, ASTM, ANSI and/or API standards.

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