AA learn-eu-central-1-prod-fleet01- C Drilling Engineering I - PENG 361 A new well drilling has the following data: 1- Depth 10,000 ft 2- The depth has classified as following: - From 0-2,000 ft soft shale with sandstone - From 2,000 - 4,000 ft hard sandstone and limestone - From 4,000 -6,000 ft soft shale with sandstone - From 6,000 - 8,000 ft hard sandstone and limestone - From 8,000 - 10,000 ft hard sandstone 3- The risk of swelling of shale is possible (well instability) 4- The drilling speed in the hard rocks is 50 ft/hr (max) 5- The drilling speed in the soft rocks is 100 ft/hr (max) 6- Average trip time (change the drilling bit) -To 2,000 ft = 4 hr - To 4,000 ft-6 hr - To 6,000 ft = 8 hr - To 8,000 ft = 10 hr -To 10,000 ft- 12 hr 7- Well Reaming will delay the drilling rate by 50%. 8- The well needs 4 casing + cementing jobs at 300 ft, 2,000 ft, 6,000 ft, and 10,000 ft (each job will take one day). 9. Well logging job will take 1 day (one job at 10,000 ft). 10- Spare time 2 days (must be added for an emergency cases) 8- Daily rent of the drilling rigs. Rig Specification Rig A (small) Rig B (Medium) Rig (Large) Stand 2 joint (double trip time) 2 joint (double trip time) 3 joint Daily rent, Sday 30,000 40,000 50,000 Drilling rate, ft day to 100 - Estimate the drilling costs of each Rig (A, B, and C). (10 points) AA learn-eu-central-1-prod-fleet01- C Drilling Engineering I - PENG 361 A new well drilling has the following data: 1- Depth 10,000 ft 2- The depth has classified as following: - From 0-2,000 ft soft shale with sandstone - From 2,000 - 4,000 ft hard sandstone and limestone - From 4,000 -6,000 ft soft shale with sandstone - From 6,000 - 8,000 ft hard sandstone and limestone - From 8,000 - 10,000 ft hard sandstone 3- The risk of swelling of shale is possible (well instability) 4- The drilling speed in the hard rocks is 50 ft/hr (max) 5- The drilling speed in the soft rocks is 100 ft/hr (max) 6- Average trip time (change the drilling bit) -To 2,000 ft = 4 hr - To 4,000 ft-6 hr - To 6,000 ft = 8 hr - To 8,000 ft = 10 hr -To 10,000 ft- 12 hr 7- Well Reaming will delay the drilling rate by 50%. 8- The well needs 4 casing + cementing jobs at 300 ft, 2,000 ft, 6,000 ft, and 10,000 ft (each job will take one day). 9. Well logging job will take 1 day (one job at 10,000 ft). 10- Spare time 2 days (must be added for an emergency cases) 8- Daily rent of the drilling rigs. Rig Specification Rig A (small) Rig B (Medium) Rig (Large) Stand 2 joint (double trip time) 2 joint (double trip time) 3 joint Daily rent, Sday 30,000 40,000 50,000 Drilling rate, ft day to 100 - Estimate the drilling costs of each Rig (A, B, and C). (10 points)