Attach_6_-_Tulageak_1_Wellbore_Diagram.pdf
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- Solicitation number
- 140L0623R0021
About this file
This document contains a wellbore diagram and schematic for the Tulageak Test Well #1 located in the National Petroleum Reserve-Alaska. It provides details on the current and proposed well construction including conductor casing, surface casing, cement plugs, drilling mud properties, and geological formation depths and hydrocarbon shows.
The related federal contract opportunity is solicitation number 140L0623R0021 issued by the Bureau of Land Management for the remediation of the Tulageak Test Well #1 and reserves. Remediation will include activities such as circulating out diesel and mud, pumping surface plugs, and setting cement plugs from 2600 feet to surface and 150 feet to surface as outlined in the wellbore schematic. The location of the well is identified as Umiat Meridian Township 21 North Range 14 West section 7.
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Text version
Rig:
Spud:
Meridian Township Range Section Utqiagvik
Umiat 21N 14W 7 25 mi
Size Weight Type Grade ID Top Btm 20 133 conductor k-55 --- 0 105
9-5/8" 53.5 surface S-95 --- 0 2720
4" Sch. 80 marker --- --- 0 20
Base Depths Weight Natural 0-2730 9.6-10.1
Natural 2730-4015 9.6-9.9
Item A
B
C
D
E
F
TD = 4015' PBTD = 2600'
Drilling Mud 9.6-9.9 ppg3950-4015
Cement Plug
Fish/Fill Information
Drilling Mud 9.6-9.9 ppg
Plug #1 - 96 sxs of 14.9 ppg Class G w/ 1% CFR-2
2800-3700
3700-3950
Sag River SS
Shubik
Neruokpuk
2000-2600
2600-2800
Drilling Mud 9.6-9.9 ppg
Plug #2 - 72 sxs 14.9 ppg Class G w/ 1% CFR-2
Kingak
Barrow
2950-3542
3542-3764
Casing and Tubing Detail
Drilling Fluids Additives
3% CaCl
3% CaCl
0-2000 Diesel
2504-2950
Tulageak P&A National T-20
February 20, 1981
Tulageak Test Well #1
Current Wellbore Schematic
GL: 10' AMSL KB: 27' AMSL
N 71 11.3357, W 155 44.2295
Original RKB = 27' above GL
Geology Formation
Gubik
Torok Shale
Gr/Pebble
Depths Shows 0-100
100-2504 ---
Gas
3765-3796
3796-3964
3964-?
Gas
Gas
Depth Comment
Cemented to surface with 475 sxs of Permafrost cement
8 1/2" Hole
12 1/4" Hole
20" Conductor
Base of Permafrost unknown
9 5/8" Surface Casing Shoe @ 2720'
Cemented to surface with 1500 sxs of Permafrost cement
Cement Plug 1 3700' to 3950' 96 sxs of 14.9 Class G w/ 1% CFR-2
MUD
Drilling MUD 2000'-2600'
Diesel Surface to 2000'
MUD
4" Marker
F
E
D
C
B
A
Rig:
Spud:
Meridian Township Range Section Utqiagvik
Umiat 21N 14W 7 25 mi
Size Weight Type Grade ID Top Btm 20 133 conductor k-55 --- 0 105
9-5/8" 53.5 surface S-95 --- 0 2720
4" Sch. 80 marker --- --- 0 20
Base Depths Weight Natural 0-2730 9.6-10.1
Natural 2730-4015 9.6-9.9
Item A
B
C
D
E
F
Item Date Comment 1 TBD Circulate out Diesel and Mud
2 TBD Pump Surface Plug
TD = 4015' PBTD = 2600'
Tulageak P&A National T-20
February 20, 1981
Tulageak Test Well #1
Proposed Wellbore Schematic
GL: 10' AMSL KB: 27' AMSL
N 71 11.3357, W 155 44.2295
Original RKB = 27' above GL
Casing and Tubing Detail
Drilling Fluids Additives
3% CaCl
3% CaCl
Geology Formation Depths Shows
Gubik 0-100 ---
Torok Shale 100-2504 ---
Gr/Pebble 2504-2950 ---
Kingak 2950-3542 Gas
Barrow 3542-3764 ---
Sag River SS 3765-3796 Gas
Shubik 3796-3964 ---
Neruokpuk 3964-? Gas
Fish/Fill Information Depth Comment 0-2000 Diesel
2000-2600 Drilling Mud 9.6-9.9 ppg
2600-2800 Plug #2 - 72 sxs 14.9 ppg Class G w/ 1% CFR-2
2800-3700 Drilling Mud 9.6-9.9 ppg
3700-3950 Plug #1 - 96 sxs of 14.9 ppg Class G w/ 1% CFR-2
3950-4015 Drilling Mud 9.6-9.9 ppg
Proposed Plugs
Cement Plug
Depth 2600' - surace
150'-surface
Cemented to surface with 475 sxs of Permafrost cement
8 1/2" Hole
12 1/4" Hole
20" Conductor
Base of Permafrost unknown
9 5/8" Surface Casing Shoe @ 2720'
Cemented to surface with 1500 sxs of Permafrost cement
Cement Plug 1 3700' to 3950' 96 sxs of 14.9 Class G w/ 1% CFR-2
Drilling MUD
Drilling
MUD
F
E
D
C
9.6-10.1 Brine
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