OCTG 101: Introduction to Oil Gas Tubular Goods

Oil Country Tubular Goods or OCTG in Houston is a category of materials used in the oil and gas industry. The purpose behind the use of these materials is the safe and efficient transport of natural oil and gas that is extracted from below the earth’s surface.
An oil well in Houston contains multiple channels made from materials of OCTG that have different functions such as:
  • Separation of oil and gas extracted from different pressure levels.
  • Prevent the collapsing of the borewell.
  • Transportation of extracted oil and gas.
There are many forms of OCTG materials in Houston that have their specific purpose. So, let us look at what is OCTG in Houston.

Types of Oil Country Tubular Goods Available

OCTG in Houston is categorized under 3 heads including drill pipes, casing pipes, and tubing pipes. All of these pipes have different functions in an oil well in Houston which when working in conjunction with other oil drilling equipment, allows an oil well to extract the oil from below the Earth and bring it to the surface.

1. Drill Pipes

A drill pipe is a large pipe that is connected to the drill bit of an oil well and is used to rotate the drill bit. Drill pipes in Houston are available in segments 30ft long and are connected to each other with tool joints. A borewell in Houston can dig very deep before it reaches the natural oil and gas reserve which in most cases is too long for just one drill pipe to reach.
To achieve its purpose a drill pipe is subjected to high torque by drilling, axial tension by its dead weight, alongside a buildup of internal pressure through the purging of the drilling fluid. The drill pipes in Houston are made from very heavy durable steel to ensure that they can withstand high levels of pressure and hold the borewell to prevent it from collapsing.

2. Casing Pipe

Casing pipes in Houston are large-diameter pipes that are attached to the borehole created by the oil well using cement. These pipes are also made to withstand high levels of axial tension but, their main purpose is to keep the tubing pipes and workers in a borewell safe by holding the shape of the borewell.
In Houston, casing pipes are around 40 feet long with heavy-duty connections to hold multiple pipes in a chain. There are multiple functions that a casing pipe can perform which include the following:
  • Separate Water well sources from the oil reserve to prevent contamination.
  • Protect the equipment and tubing pipes installed within from rocks within the borewell
  • Hold the structure of the borewell and prevent collapsing
  • Provide a smooth surface for equipment and tubing pipes to work and extract oil.
Similar to the drill pipes, casing pipes are also made from very heavy steel to allow them to perform their function. Casing pipes in Houston are one of the core components of an oil well.

3. Tubing Pipes

Tubing pipes in Houston are the pipes that are used to transport the extracted oil from the natural reserve located deep inside the Earth of Houston oilfields back to the surface. Their role is very easy to understand as they play a very specific role in an oil well in Houston. Some of the key features of a tubing pipe in Houston are:
  • Tubing pipes used in Houston oilfields measure around 30 feet tall with threaded connections to join more pipes.
  • Tubing pipes are made to maintain internal pressure to allow the extracted oil to reach the surface.
  • Tubing pipes attach to the casing pipe and if they break during the oil extraction, they can be easily replaced.
  • Tubing pipes have a small diameter for better control of pressure and efficient transportation of extracted oil and gas from Houston oilfields.
  • Tubing pipes are thick enough to withstand high internal pressure levels from oil and gas.

Grade of OCTG in Houston

OCTG in Houston is made from steel of different strength levels that are measured in a unit known as grades. Depending on the weight that your oil well in Houston will exert on the foundation, you will need to choose the right kind of OCTG inventory in Houston. According to the American Society for Testing and Materials, there are 3 grades for OCTG.
  • Grade 1
  • Grade 2
  • Grade 3
Out of these, the grade 3 OCTG is the most used due to its superior strength, making it the best choice for oil wells in Houston and other Southeast Texas areas despite its higher cost than the grade 2 and 1 OCTG inventory.

Is OCTG Good for Sustainability?

A major factor that every oil and gas business in Houston must consider is the impact of their oil extraction process on the surrounding environment. The underground water table is located very close to the oil deposits within the Earth and the risk of contamination of this water is very high during the oil extraction process.
Spilling of oil during extraction is also a major issue as it heavily pollutes the land or water surface it spills onto. This spilled oil is not only a waste of important resources but is also very difficult to clean. Houston OCTG suppliers have become successful because OCTG are capable of protecting the surrounding environment during the extraction process.
Each pipe in the OCTG inventory in Houston is designed to ensure that the oil being extracted reaches the surface and into the storage containers safely. Sustainability of the surrounding environment is a key aspect provided by every Houston OCTG supplier.

Ready to Acquire an OCTG Inventory In Houston? Visit KO Supply Now.

Among the cities within Texas, Houston is a major contributor to the energy produced that is extracted from the state. According to the Greater Houston Partnership, Houston employs nearly a third of the nation’s jobs in oil and gas extraction and is Home to over 4,700 energy-related firms.

This makes having a basic knowledge of what OCTG is, a requirement for running a successful oil and gas business in Houston. So, if you are in search of a leading OCTG distributor in Houston for either selling or buying OCTG, visit KO Supply online today.

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