Page 187 - Geothermal Energy Systems Exploration, Development, and Utilization

3.10 Economics (Drilling Concepts) 163

Depth OH-diam. Casing /Linear diameter
m MD drill depth (GL) Csg./Liner shoe/TOC/TOL depth (GL)
Surface casing 26″
41,6 m

23″ 16″ Anchor casing 18 5/8″
744 m 741,2 m
X-over 13 3/8″ × 16″
723, 1 m

Combined production casing
16″ × 13 3/8 × 13 5/8″× 13 3/8″

110 m 13 5/8″ Joints with high wall thickness
covering rock salt

TOL 9 5/8″
16″ 2305,5 m Csg. 13 3/8″
2383 m TOL 7″× 7 5/8″ 2381,50 m
2333 m

KOP 1 at 2780 m
BUR 1,5°/10m, Azimuth 288°
X-over 7 5/8 × 7″
2907 m
12 1/4″ Whipstock @ 3159,5 m
bis 3160 m Window @ 3160,65-3164,7 m

TOL 5″
3760,9 m
8 1/2″ Liner 7 × 7 5/8″″
3879 m 3878 m

Liner 5″
5 7/8″ 4354,5 m Pre-drilled liner 5″
TD of well 4400,4 m 4389 m
Figure 3.28 Final casing scheme.