This article appears to be a dictionary definition. (May 2023) |
A directional well is the oil industry term for an oil well with a borehole that deviates from a vertically straight line. This is normally done with the intention of hitting several target sands, for instance.
![](http://upload.wikimedia.org/wikipedia/commons/thumb/e/ec/True_vertical_depth.jpg/250px-True_vertical_depth.jpg)
Line (a) is an imaginary line representing the true vertical depth, while line (b) is the borehole itself, and its length is called the measured depth
References
editExternal links
edit- Directional well, Oilfield Glossary, Schlumberger