... program, cement program, and mud program are rather consistent from one well to another. The biggest challenge lies in wellbore design, which should allow fast, cost-efficient, and problem-free drilling and subsequent casing- and lower completion running. This paper presents 3D wellbore trajectory design...

...) and the OWC. Field objectives included achieving optimal well landing, identifying the moveable oil in situ, mapping the hydrocarbon-bearing reservoir, and identifying the hydrocarbon type (oil or gas) along the wellbore trajectory. To address the challenges, an integrated drilling bottomhole assembly (BHA...

... in rotating intervals is roughly estimated to be two times higher than ROP in sliding intervals. From the analysis of several field cases, a model to describe the total ROP has been developed, where the DLS influence is taken into account. It provides useful knowledge for wellbore trajectory design in terms...