Horizontal vs directional drilling - how do they differ? Both take place when you're constructing a building, but they differ in how they do so. While they share similarities, they are different processes that serve slightly different roles.
In this guide, we'll be outlining both of those processes. We'll discuss how they differ, the process, and when to use them.
Let's get into it!
Horizontal Drilling
Horizontal drilling can access different rock types below the earth's surface. It involves inserting a drill bit at an angle so that the well eventually lies horizontally in the abutting geologic layer.
This type of drilling allows the oil and gas company to reach reserves along the path of the drill bit.
Directional Drilling
Directional drilling allows for steering the boreholes in any direction predetermined by a surveyor. It is a technology used for creating pathways for:
- Pipelines
- Caissons
- Conduits
- Mining
Directional drilling is complicated because it involves planning a path for the borehole. It must take the following predetermined coordinates. It is then employed to connect the single horizontal directions, making it easier to hit precise depths.
Advantages of Each Method
Horizontal and directional drilling are two effective methods used by the oil and gas industry. They are known to reach valuable resources buried deep below the ground. Their respective advantages include the following:
Horizontal Drilling
- Increased potential for higher production
- Reduced surface impact
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Directional drilling
- Improved accuracy
- Faster drilling speeds
Less likelihood of wellbore instability
Disadvantages of Each Method
Disadvantages of horizontal drilling include higher depths and drilling rig costs. While directional drilling is less efficient and involves several turns but is also more expensive.
The choice of drilling method should depend on the requirements of the customer.
When Horizontal or Directional Drilling Is Most Appropriate
Horizontal drilling is generally used in confined spaces where the pipeline needs several turns. This technique is often used to redirect a previously existing pipeline.
Directional drilling is used when a pipeline needs to pass through areas with rugged terrain or other obstacles that make it difficult or impossible to use a traditional drilling process. This technique allows a drill head to be steered in a particular direction, even while drilling vertically, which is ideal for crossing hills, rivers, and wetlands.
In general, horizontal and directional drilling are appropriate options when traditional drilling methods are not feasible due to safety, environmental, or installation cost considerations.
Learn Directional Drilling Today
Horizontal vs directional drilling each has its own distinct advantages and drawbacks. It depends on the application and its needs.
Consider your project carefully and consult a drilling specialist to determine the most suitable choice. Take the plunge and find out which method is ideal for you!
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