In both straight and deviated holes the position of the wellbore beneath the surface must be determined as the well is being drilled. This requires the use of surveying instruments that are able to measure the hole inclination and direction at various depths along the course of the well. The position of the wellbore relative to the surface location can be calculated from the cumulative survey results.
Weitere Kapitel dieses Buchs durch Wischen aufrufen
- Directional Surveying
T. A. Inglis
- Springer Netherlands
- Chapter 7