Table T2. Operations and time estimates for Expedition 332, Site C0002 riserless. (See table notes.)
| Site |
PTD (mbsf) |
Water depth (m) |
Total (mbsf) |
Operation |
Estimated days |
Subtotal days |
Total days |
Number of cores |
|---|---|---|---|---|---|---|---|---|
| C0002 | ||||||||
| 1000 | 1936 | 1400 |
Prepare for running 20 inch casing: • Move to site, ROV survey • Preparation for running 20 inch casing • Move to low current area |
0.5 1.0 0.5 |
2.0 |
2.0 |
||
|
Set 20 inch casing: • Rig up 20 inch conductor • Make up and run 20 inch casing, low current area • Drift to location • Run and jet-in 20 inch conductor to 36 mbsf |
0.5 1.0 1.5 1.0 |
4.0 |
6.0 |
|||||
|
Drill 12-1/4 inch hole: • Install guidehorn • Makeup and run 12-1/4 inch drilling assembly with drifting • Drill 12-1/4 inch hole to 900 msbf with LWD • POOH and RIH 10-5/8 inch drilling assembly, drill 10-5/8 inch hole to 955 mbsf TD • Wiper trip, POOH |
0.5 1.5 2.5 1.0 1.0 |
6.5 |
12.5 |
|||||
|
Set 9-5/8 inch casing: • Move to low current area, unset guidehorn, rig up 9-5/8 inch casing • Make up and run 9-5/8 inch casing at low current area • Drifting to location • Run and cement 9-5/8 inch casing to 890 mbsf |
1.0 1.0 1.5 1.5 |
5.0 |
17.5 |
|||||
|
Drill out cement and scraping: • Make up and run drill out cement assembly, drill out cement, POOH • Run scraper assembly to above float collar, POOH |
2.0 1.0 |
3.0 |
20.5 |
|||||
|
Wiper trip: • Install guidehorn, run wiper trip assembly, ream to bottom, spot cross-linked gel, POOH |
1.0 |
1.0 |
21.5 |
|||||
|
Completion: • Preparation of completion, make up and run 3-1/2 inch tubing completion assembly with drifting, test sensor, cement and set strainmeter and POOH running tool |
8.5 |
8.5 |
30.0 |
|||||
| Retrieve transponders, test pressure logger with ROV | 2.0 | 2.0 | 32.0 | |||||
| Total days | 32.0 | |||||||
Notes: PTD = proposed total depth. ROV = remotely operated vehicle. LWD = logging while drilling. POOH = pull out of hole, RIH = run in hole. TD = total depth.
Previous | Close | Top of page