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Unformatted text preview: t 12,000 12,500 14,500 13,000 13,500 13,000 13,500 14,000 14,000 14,500 14,500 15,000 15,000 15,000 15,000 15,000 Figure 15. Drilling parameters (ROP, WOB, RPM, Torque, and HSI) vs. Depth for field case No. 2: Friction Limited. ROP, ft/hr 0 20 40 HSI, hp/in 60 0.0 1.0 2 2.0 3.0 Torque, ft-Kips RPM, rpm WOB, Kips 12000 12000 200 0 12000 12200 12200 12200 12200 12400 12400 12400 12400 12400 12600 12600 12600 12600 12600 12800 12800 12800 12800 12800 10 15 20 25 0 13000 100 Depth (ft) 5 Depth (ft) 13000 0 Depth (ft) 13000 Depth (ft) 12000 12200 Depth, ft 12000 13000 2 4 6 8 13000 13200 13200 13200 13200 13200 13400 13400 13400 13400 13400 13600 13600 13600 13600 13600 13800 13800 13800 13800 13800 14000 14000 14000 14000 14000 Surface Downhole Surface Downhole Surface Downhole Figure 16. Drilling parameters (ROP, HSI, WOB, RPM, and Torque) vs. Depth for field case No. 3: Surface vs. Downhole data. SPE 116667 15 DSE and UCS, psi 0 100,000 200,000 300,000 Surface DSE 400,000 Rock Unconfined Stress 12,000 12,200 12,400 12,600 Depth, ft 12,800 13,000 13,200 13,400 13,600 13,800 14,000 Figure 17. Surface DSE vs. Unconfined Rock Strength (UCS) for field case No. 3. DSE and CCS, psi 0 100,000 200,000 300,000 400,000 12,000 12,200 12,400 12,600 Depth, ft 12,800 13,000 13,200 13,400 13,600 13,800 14,000 Downhole DSE Rock Confined Stress Figure 18. Downhole DSE vs. Confined Rock Strength (CCS) for field case No. 3. 16 SPE 116667 Flounder Point: 1,000,000 Inefficient drilling DSE (psi) ROP (ft/hr) 800,000 600,000 400,000 200,000 Efficient drilling 0 0 50 100 150 ROP (ft/hr) WOB (lbs) Figure 19. Relationship between the traditional ROP vs. WOB plot and the new DSE vs. ROP plot. 200 250 300...
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This note was uploaded on 01/31/2014 for the course MOGE 9114 taught by Professor Thomod during the Spring '13 term at Memorial University.

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