## Features of A Directional Well Profile

A directional well profile is the planned well trajectory from the surface to the final drilling depth by projecting the wellbore onto two plotted planes. In order to determine the best geometric well profile from the surface to the bottomhole target, the following information must be known the position of the surface location, the position of the target location, and

• the true vertical depth (TVD).
• the true vertical depth (TVD).

5.1.2 Kickoff Point (KOP)

The kickoff point is the location at a given depth below the surface where the wellbore is deviated in a given direction.

1. 1.2 Kickoff Point (KOP)
2. 1.3 Well Inclination

The well inclination is the angle by which the wellbore deviates from the vertical.

5.1.3 Well Inclination

The well inclination is the angle by which the wellbore deviates from the vertical.

### The end of buildup is the location where the wellbore has finished increasing.

1. 1.5 Hold Angle
2. 1.5 Hold Angle

The hold angle occurs where the inclination of the borehole is held constant.

5.1.6 Tangent Section

The tangent section (hold section) occurs after a buildup where the inclination of the borehole is held constant for a certain distance. There could be an additional build or drop before reaching the target.

The end of drop is the location where the wellbore finishes dropping inclination.

The end of drop is the location where the wellbore finishes dropping inclination.

5.1.9 Target Displacement

The target displacement is the lateral distance from the surface location to the target.

5.1.9 Target Displacement

The target displacement is the lateral distance from the surface location to the target.

Study Question

1) Write in the correct term to correctly complete the following sentence.

### A well profile is the planned well trajectory from the_to the final drilling depth.

1. Which of the following must be known to determine the best geometric well profile from the surface to the bottomhole target? Select all the correct answers.
2. The TVD of the target b) The position of the surface location c) The position of the target location d) The density of the target

5.1.10 Target Location

The target location is a point defined in space by geographical coordinates at a given true vertical depth. A well profile could have multiple targets.

The drop off rate is the rate at which the inclination decreases. The rate is usually expressed in degrees per 100 ft or degrees per 30 m of the course length.

Study Question

Study Question

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### Responses

• asphodel
What is a directional well surface location?
5 years ago
• Shannon Mackenzie
Is the angle that occurs where the inclination of the drilled borehole is held constant?
2 years ago
• austin
How to select KOP in well trajectory?
1 year ago