Published November 2014
The definition of required length of vertical part of inclined well profile
I.Z. HasanovIt is known that one of the main issues in inclined wells is provision of casing passing with large diameter through curved intervals due to its own weight. With increase of curving intensification and deviation to provide casing standard passing through drilled curved bore-holes, it is necessary to increase its own weight, which seems possible with enhancement of bore-holes vertical part. On the other hand, for gathering of all necessary deviations in inclined holes with large zenith angle, it is required to reduce the length of bore-hole vertical part or radius of curved intervals. The scientific justification and method of definition of bore-holes vertical part required length to provide passing of casing through curved intervals due to its own weight, in the consequence of which it is possible to conduct the accumulation of inclined hole design profile, has been provided.
