How do you execute a directional drilling program?

1 Plan the well path

Before you start drilling, you need to design a well path that meets your objectives and constraints. You have to consider factors such as the target location and depth, the subsurface geology and geophysics, the surface and bottomhole conditions, the drilling equipment and capabilities, the costs and risks, and the regulatory requirements. You can use software tools and models to help you plan the well path and evaluate different scenarios.

2 Choose the drilling system

The next step is to select the drilling system that will enable you to steer the wellbore along the planned path. There are different types of drilling systems, such as rotary steerable systems (RSS), mud motors, or a combination of both. Each system has its own advantages and disadvantages, depending on the well geometry, formation properties, drilling parameters, and operational preferences. You have to weigh the benefits and trade-offs of each system and choose the one that suits your needs.

3 Monitor the well trajectory

Once you start drilling, you have to monitor the well trajectory and compare it with the planned path. You can use various methods and tools to measure the wellbore position and orientation, such as measurement while drilling (MWD), logging while drilling (LWD), gyroscopes, or magnetic surveys. You have to collect and analyze the data regularly and make adjustments if needed. You also have to ensure the accuracy and reliability of the data and avoid errors or interference.

4 Control the wellbore direction

To control the wellbore direction, you have to apply directional forces or torques to the drill bit or the drill string. You can use different techniques and devices to do this, such as bent subs, stabilizers, deflecting tools, or downhole motors. You have to adjust the settings and parameters of these devices according to the well path design and the drilling conditions. You also have to coordinate with the surface crew and the directional driller to execute the steering commands.

5 Evaluate the well performance

After you finish drilling, you have to evaluate the well performance and compare it with your expectations and goals. You have to measure the actual wellbore trajectory and quality, the drilling efficiency and productivity, the reservoir characteristics and potential, and the operational safety and environmental impact. You can use various techniques and tools to do this, such as well logs, well tests, core samples, or production data. You have to use the results to improve your future directional drilling programs.

6 Here’s what else to consider

This is a space to share examples, stories, or insights that don’t fit into any of the previous sections. What else would you like to add?