|
|
|
|
|
|
|
|
|
|
|
|
|
|
End Expedition 301 Port Call in Astoria, Oregon
|
|
|
|
27 Jun
|
0600
|
|
|
|
Depart Astoria, Oregon, for Site U1301
|
27 Jun
|
0600
|
|
27 Jun
|
0830
|
|
2.50
|
0.1
|
Cross Columbia River Bar
|
27 Jun
|
0830
|
|
27 Jun
|
1030
|
|
2.00
|
0.1
|
Transit ~172 nmi to Site U1301 (SR-1A)
|
27 Jun
|
1030
|
|
28 Jun
|
0315
|
|
16.75
|
0.7
|
|
|
|
|
|
|
|
|
|
Hole U1301A:
|
|
|
|
|
|
|
|
|
Jet-in test
|
28 Jun
|
0315
|
|
29 Jun
|
0400
|
|
24.75
|
1.0
|
Install reentry cone and 20 inch casing
|
29 Jun
|
0400
|
|
30 Jun
|
0545
|
|
25.75
|
1.1
|
Drill 20 inch hole in sediment with underreamer for 16 inch casing
|
30 Jun
|
0545
|
|
01 Jul
|
1130
|
|
29.75
|
1.2
|
Drill 20 inch hole in basement with bicenter bit
|
01 Jul
|
1130
|
|
02 Jul
|
1345
|
|
26.25
|
1.1
|
Install 16 inch casing
|
02 Jul
|
1345
|
|
03 Jul
|
1230
|
|
22.75
|
0.9
|
Drill 14-3/4 inch hole with tricone bit in basement for 10-3/4 inch casing
|
03 Jul
|
1230
|
|
06 Jul
|
0400
|
|
63.50
|
2.6
|
Install 10-3/4 inch casing
|
06 Jul
|
0400
|
|
08 Jul
|
0800
|
|
52.00
|
2.2
|
offset ship 36 m N13°E to Hole U1301B
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Hole U1301B:
|
|
|
|
|
|
|
|
|
Install reentry cone and 20 inch casing
|
08 Jul
|
0800
|
|
09 Jul
|
0900
|
|
25.00
|
1.0
|
Repair underreamer
|
09 Jul
|
0900
|
|
09 Jul
|
1645
|
|
7.75
|
0.3
|
Drill 20 inch hole 11m into basement with bicenter bit and underreamer
|
09 Jul
|
1645
|
|
11 Jul
|
0600
|
|
37.25
|
1.6
|
Install 16 inch casing
|
11 Jul
|
0600
|
|
12 Jul
|
0130
|
|
19.50
|
0.8
|
Drill 14-3/4 inch hole with tricone bit in basement for 10-3/4 inch casing
|
12 Jul
|
0130
|
|
14 Jul
|
0215
|
|
48.75
|
2.0
|
Install 10-3/4 inch casing; unable to land, pull out of hole
|
14 Jul
|
0215
|
|
15 Jul
|
0515
|
|
27.00
|
1.1
|
Ream hole with 14-3/4 inch tricone bit
|
15 Jul
|
0515
|
|
16 Jul
|
0500
|
|
23.75
|
1.0
|
Install 10-3/4 inch casing
|
16 Jul
|
0500
|
|
17 Jul
|
0045
|
|
19.75
|
0.8
|
Equipment transfer by helicopter, 1100 hours on 16 July
|
|
|
|
|
|
|
|
|
Transit 0.55 nmi to Site 1026 in DP mode (during pipe trip)
|
17 Jul
|
0045
|
|
17 Jul
|
0045
|
|
0.00
|
0.0
|
|
|
|
|
|
|
|
|
|
Hole 1026B:
|
|
|
|
|
|
|
|
|
RIH/Fish aluminum reentry funnel/POOH
|
17 Jul
|
0045
|
|
17 Jul
|
1200
|
|
11.25
|
0.5
|
Transit 0.55 nmi to Site U1301 (during pipe trip)
|
17 Jul
|
1200
|
|
17 Jul
|
1200
|
|
0.00
|
0.0
|
|
|
|
|
|
|
|
|
|
Hole U1301A:
|
|
|
|
|
|
|
|
|
Drill out cement, check and clean hole to total depth
|
17 Jul
|
1200
|
|
18 Jul
|
0315
|
|
15.25
|
0.6
|
Hydrologic (packer) testing
|
18 Jul
|
0315
|
|
19 Jul
|
1000
|
|
30.75
|
1.3
|
Install CORK and ROV platform
|
19 Jul
|
1000
|
|
21 Jul
|
0230
|
|
40.50
|
1.7
|
offset ship 36 m back to Hole U1301B(during pipe trip)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Hole U1301B:
|
|
|
|
|
|
|
|
|
Drill out cement
|
21 Jul
|
0230
|
|
21 Jul
|
1800
|
|
15.50
|
0.6
|
RCB core to 582.8 mbsf
|
21 Jul
|
1800
|
|
31 Jul
|
2245
|
|
244.75
|
10.2
|
Wireline logging; four runs
|
31 Jul
|
2245
|
|
02 Aug
|
2330
|
|
48.75
|
2.0
|
Transit 0.55 nmi to Hole 1026B (during pipe trip)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Hole 1026B:
|
|
|
|
|
|
|
|
|
Recover CORK installed during Leg 168
|
02 Aug
|
2330
|
|
03 Aug
|
1500
|
|
15.50
|
0.6
|
Install CORK (includes 15.75 h to fish obstruction in cone)
|
03 Aug
|
1500
|
|
05 Aug
|
0415
|
|
37.25
|
1.6
|
Deploy ROV platform
|
05 Aug
|
0415
|
|
05 Aug
|
1615
|
|
12.00
|
0.5
|
Transit 0.55 nmi to Hole U1301B(during pipe trip)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Hole U1301B:
|
|
|
|
|
|
|
|
|
Attempt to align and cement 10-3/4 inch casing
|
05 Aug
|
1615
|
|
06 Aug
|
1700
|
|
24.75
|
1.0
|
offset ship 100 m NNE (19°) of Hole U1301B
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Hole U1301C:
|
|
|
|
|
|
|
|
|
APC core to ~265 mbsf, conduct 5 temperature measurements
|
06 Aug
|
1700
|
|
08 Aug
|
1545
|
|
46.75
|
1.9
|
offset ship back to Hole U1301B (during pipe trip)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Hole U1301B:
|
|
|
|
|
|
|
|
|
Open hole and check depth of hole
|
08 Aug
|
1545
|
|
09 Aug
|
0730
|
|
15.75
|
0.7
|
Hydrologic (packer) testing
|
09 Aug
|
0730
|
|
10 Aug
|
2100
|
|
37.50
|
1.6
|
Test CORK-II casing and spring centralizers across casing gap
|
10 Aug
|
2100
|
|
11 Aug
|
1315
|
|
16.25
|
0.7
|
Failed attempt to install CORK; 4-1/2 casing breaks below CORK-II head
|
11 Aug
|
1315
|
|
13 Aug
|
0600
|
|
40.75
|
1.7
|
Visually inspect failed CORK-II
|
13 Aug
|
0600
|
|
13 Aug
|
1545
|
|
9.75
|
0.4
|
Remove (fish) failed 4-1/2 inch casing from reentry cone
|
13 Aug
|
1545
|
|
14 Aug
|
0600
|
|
14.25
|
0.6
|
Check depth of hole with drill bit
|
14 Aug
|
0600
|
|
14 Aug
|
1800
|
|
12.00
|
0.5
|
Install CORK
|
14 Aug
|
1800
|
|
16 Aug
|
1715
|
|
47.25
|
2.0
|
Deploy ROV platform
|
16 Aug
|
1715
|
|
17 Aug
|
0415
|
|
11.00
|
0.5
|
Spot cement in reentry cone through ROV platform
|
17 Aug
|
0415
|
|
17 Aug
|
1515
|
|
11.00
|
0.5
|
Remove (fish) piece of failed 4-1/2 inch casing adjacent to reentry cone
|
17 Aug
|
1515
|
|
17 Aug
|
2245
|
|
7.50
|
0.3
|
Conduct seafloor hazard survey surrounding Holes U1301A and U1301B
|
17 Aug
|
2245
|
|
18 Aug
|
1030
|
|
11.75
|
0.5
|
|
|
|
|
|
|
|
|
|
Hole U1301D:
|
|
|
|
|
|
|
|
|
APC core 120–180 mbsf and secure for transit to Astoria, Oregon
|
18 Aug
|
1030
|
|
19 Aug
|
0600
|
|
19.50
|
0.8
|
Transit ~179 nmi to Astoria, Oregon
|
19 Aug
|
0600
|
|
19 Aug
|
2245
|
|
16.75
|
0.7
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1288.8
|
53.7
|
