Production casing CASING DESIGN BASED ON MAXIMUM SURFACE PRESSURE
19-Aug-08
CASING DESIGN BASED ON MAXIMUM SURFACE PRESSURE - CONDUCTOR CONDUCTOR CASING DESIG
SIZE:
16"
CONDITIONS: TVD: BACKUPGAS GRADIENTMUD WEIGHTSAFETY FACTOR-
102 0.115 0.115 9.0 1.0
FEET PSI/FT PSI/FT PPG PPG
Measured Depth 102 FEET FRACTURE WT12.4 PPG EMW BURST MUD WEIGHT: MW + SF = 13.4 PPG COLLAPSE MUD WEIGHT: MW + SF = 10.0 PPG
COLLAPSE DESIGN: INJECTION PRESSGAS HYDROSTATIC-
102 102
X X
0.052 0.115
X
10.0
COLLAPSE
= = =
53 PSI 12 PS PSI 41 PS P SI
= = =
71 PSI 12 PSI 59 PS PSI
BURST DESIGN INJECTION PRESSGAS HYDROSTATIC-
102 102
X X
0.052 0.115
X
13.4 BURST
RECOMMENDED CASING: MD TV D FEET FEET SIZE WT/FT GRADE CONN. BURST SF 102 102 16" 65.00 H-40 XLF 1,640 27.64
102 102 CORRECT: TENSION DESIGN LOAD-
YES = 1, N0 = 0 METERS -
SF 15.25
439,000
0 FEET -
1
COLLAPS
630
TENSION
SF 66.21
Production casing CASING DESIGN BASED ON MAXIMUM SURFACE PRESSURE
19-Aug-08
CASING DESIGN BASED ON MAXIMUM SURFACE PRESSURE - SURFACE SURFACE CASING DESIGN:
SIZE:
9-5/ 9-5/8" 8"
CONDITIONS: TVD: BACKUPGAS GRADIENTMUD WEIGHTSAFETY FACTOR-
2200 0.115 0.115 9.5 1.0
FEET PSI/FT PSI/FT PPG PPG
Sur Surface face Cas Casin ing g Measured Depth 2200 FEET FRACTURE WT13.6 PPG EMW BURST MUD WEIGHT: MW + SF = 14.6 PPG COLLAPSE MUD WEIGHT: MW + SF = 10.5 PPG
COLLAPSE DESIGN: INJECTION PRESSGAS HYDROSTATIC-
2200 2200
X X
0.052 0.115
X
10.5
COLLAPSE
= = =
1201 PSI 253 PS P SI 948 PSI
= = =
1670 PSI 253 PSI 1417 PSI
BURST DESIGN INJECTION PRESSGAS HYDROSTATIC-
2200 2200
X X
0.052 0.115
X
14.6 BURST
RECOMMENDED CASING: MD TV D FEET FEET SIZE WT/FT GRADE CONN. BURST 2200 2200 9-5/8" 40.00 J-55 ST&C 3,950
2200 2200 CORRECT: TENSION DESIGN LOAD-
SF 2.79
YES = 1, N0 = 0 METERS -
SF 2.71
452,000
0 FEET -
1
COLLAPS
2,570
TENSION
SF 5.14
Production casing CASING DESIGN BASED ON MAXIMUM SURFACE PRESSURE
19-Aug-08
CASING DESIGN BASED ON MAXIMUM SURFACE PRESSURE - BURST CASIN CASING G SIZE: SIZE: 7" CONDITIONS: CASING SHOE DEPTH = Z = ---------------------------TVD 11620 FEET FRA FRACTUR CTURE E WT. WT. AT CSG CSG SHOE SHOE DEPT DEPTH H = B = ------------------17.5 17.5 PPG PPG EMW EMW MUD COLUMN = X = -----------------------------------X FEET GAS COLUMN = Y = -------------------------------------Y FEET MAXIMUN SURFACE PRESSURE = A = ------------10000 PSI MUD WEIGHT AT NEXT CASING SEAT = C = ----------15.5 PPG MUD WEIG WEIGHT HT CASI CASING NG SET SET IN =---=-----------------------------------------------11.2 11.2 PPG PPG
WATER D. AIR GAP FRAC/SHOE FRAC O/S
FORMULAS: X+Y=Z A+(X*.052*C)+(Y*.115)=(B+1.0)*.052*Z CALCULATIONS: X+Y= Y= 10000 0.806 0.691
X * Y * A =
0.806 0.115 10000
11620 11620 - X + 0.806 X + X + 1336 + X = -158 X = -228 FEET
INJECTION PRESSURE:
(
17.5 +1 +1.0)*
0.115 Y 0.115 X
= =
11620 *.052=
11178 PSI
11178 1178
INTERFACE PRESSURE: SURFACE PRESSURE + MUD COLUMN PRESSURE 10000
+ (
-228
*
0.806 ) =
9816 PSI
CHECK: INJECTION PRESSURE - INTERFACE PRESSURE SHOULD EQUAL .115 PSI/FT
0 22 17.5 17.5
Prroduction casing P
19-Aug-08
CASING DESIGN BASED ON MAXIMUM SURFACE PRESSURE - COLLAPSE SIZE: 7"
DESIGN USES A SALTWATER BACKUP.
CONDITIONS: TVD BACKUPGAS GRADIENTMUD WEIGHTSAFETY FACTOR-
0 11,620 0.465 0.115 11.2 1.0
METERS FEET PSI/FT PSI/FT PPG PPG
X X
0.052 0.465
MEASURED DEPTH: 11,620 FEET FRACTURE WT17.5 PPG EMW BURST MUD WEIGHT: MW + SF = 18.5 PP PPG COLLAPSE MUD WEIGHT: MW + SF = 12.2 PPG
CALCULATIONS: INJECTION PRESS11620 SALTWATER BACKU 11620
X
12.2
COLLAPSE RECOMMENDED CASING: MD TV D FEET FEET SIZE WT/FT GRADE CONN. BURST 11620
11620
7"
29.0
11620 11620 CORRECT:
P-110
LT&C
11,220
SF 1.13
YES = 1, N0 = 0 METERS -
= = =
7372 PSI 5403 PSI 1968 PSI
SF
TENSION
SF
4.333
797,000
2.37
0 FEET -
1
OLLAPSE
8,530
CASING DESIGN BASED ON MAXIMUM SURFACE PRESSURE - TENSION LOADLENGHT OF PIPE-
0 FEET
WT OF PIPE
0.0 LBS/FT
Production casing CASING DESIGN BASED ON MAXIMUM SURFACE PRESSURE
19-Aug-08
CASING DESIGN BASED ON MAXIMUM SURFACE PRESSURE - BURST CASING SI SIZE: 7"
PROTECTION ST STRING
CONDITIONS: Measured Depth: CASING SHOE DEPTH = Z = --------------------------11,620 FEET WATER D. AIR GAP FRA FRACTUR CTURE E WT. WT. AT CSG CSG SHOE SHOE DEPT DEPTH H = B = ------------------17.5 17.5 PPG PPG EMW EMW FRAC/SHOE MUD COLUMN = X = -----------------------------------X FEET FRAC O/S GAS COLUMN = Y = -------------------------------------Y FEET MAXIMUN SURFACE PRESSURE = A = ------------10000 PSI MUD WEIGHT AT NEXT CASING SEAT = C = ----------15.5 PPG MUD WEIGHT CASING SET IN =--------------------------------11.2 PPG FORMULAS: X+Y=Z A+(X*.052*C)+(Y*.115)=(B+1.0)*.052*Z CALCULATIONS: X+Y= Y= 10000 0.806 0.691
X * Y * A =
0.806 0.115 10000
11620 11620 - X + 0.806 X + X + 1336 + X = -158 X = -228 FEET
INJECTION PRESSURE:
(
17.5 +1 +1.0)*
0.115 Y 0.115 X
= =
RESULTS: INTERFACE PRESSURE: SURFACE PRESSURE + MUD COLUMN PRESSURE 10000
+ (
-228
*
0.806 ) =
9816 PSI
11620 *.052=
11178 1178
11178 PSI
11,620
FEET
0 22 17.5 17.5
Production casing CASING DESIGN BASED ON MAXIMUM SURFACE PRESSURE - COLLAPSE SIZE: 7"
08/19/08
DESIGN USES A SALTWATER BACKUP.
CONDITIONS: DEPTHBACKUPGAS GRADIENTMUD WEIGHTSAFETY FACTOR-
0 11620 0.465 0.115 11.2 1.0
ME M ETERS FEET PSI/FT PSI/FT PPG PPG
X X
0.052 0.115
FRACTURE WT17.5 PPG EMW BURST MUD WEIGHT: MW + SF = 18.5 PPG COLLAPSE MUD WEIGHT: MW + SF = 12.2 PPG
CALCULATIONS: INJECTION PRESSGAS BACKUP -
11620 11620
X
12.2
COLLAPSE
RECOMMENDED CASING: TVD MD DEPTH FEET SIZE WT/FT GRADE CONN. BURST 11620 11620
7"
29.0
11620 11620 CORRECT:
P-110
LT&C
11,220
SF 1.41
YES = 1, N0 = 0 METERS -
= = =
7372 PSI 1336 PSI 6035 PSI
OLLAPSE
8,530
SF
TENSION
SF
1.41
797,000
2.37
0 FEET -
CASING DESIGN BASED ON MAXIMUM SURFACE PRESSURE - TENSION LOADLENGHT OF PIPELENGHT OF PIPELENGHT OF PIPE-
0 FEET 11620 FEET 0 FEET
WT OF PIPE WT OF PIPE WT OF PIPE
0.00 LBS/FT 29.00 LBS/FT 0 LBS/FT
1
FULL
Production casing CASING DESIGN BASED ON MAXIMUM SURFACE PRESSURE CASING DESIGN BASED ON MAXIMUM SURFACE PRESSURE - PRODUCTION CASING DESIGN: CONDITIONS: DEPTHBHP DEPTH SALT SALTWA WATE TER R BACK BACK U GAS BACK UP BURST BACKUP COLLAPSE BACK UP TD MUD WEIGHTCASING DEPTH MUD WT. BURST SAFETY FACTOR COLLAPSE COLLAPSE SAFETY SAFETY FACTO FACTO
COLLAPSE DESIGN: INJECTION PRESSBACK UP GAS RESULTANT SAFETY FACTOR -
11620 11620 6767 1.125
SIZE:
11620 11900 0.46 0.465 5 0.115 0.115 0.115 15.5 11.2 1.250 1.125 X X x
7"
Drilling / Production String
FEET FEET PSI/ PSI/FT FT PSI/FT PSI/FT PSI/FT PPG PPG PPG PPG 0.052 0.115 1336 5431
PIPE/
11900 11900 9344 1.250
X X x
0.052 0.115 1369 7975
11620 FEET
LENGTH
BURST EMW ( .4 PPG LESS THAN MUD WEIGHT): EMW - .4 PPG =
15.1 PPG
COLLAPSE MUD WEIGHT: MW =
X
11.2
COLLAPSE BURST DESIGN INJECTION PRESSBACK UP GAS RESULTANT SAFETY FACTOR -
19-Aug-08
X
RECOMMENDED CASING: MD DEPTH FEET SIZE WT/FT GRADE CONN. BURST
15.1
11.2 PPG
= = = = =
6767 1336 5431 6110 6110
PSI PSI PSI PS PSI PSI
= =
9344 1369 7975 9969 9969
PSI PSI PSI
= =
BURST
=
SF
COLLAPS
PSI
PSI
TVD
SF
TENSION
SF
TYPE
Production casing CASING DESIGN BASED ON MAXIMUM SURFACE PRESSURE CASING DESIGN BASED ON MAXIMUM SURFACE PRESSURE - PRODUCTION CASING DESIGN: CONDI CONDITI TION ONS: S: MD: DEPTHBHP DEPTH SALT SALTWA WATE TER R BACK BACK U GAS BACK UP BURST BACKUP COLLAPSE BACK UP TD MUD WEIGHTCASING DEPTH MUD WT. BURST SAFETY FACTOR COLLAPSE COLLAPSE SAFETY SAFETY FACTO FACTO
COLLAPSE DESIGN: INJECTION PRESSBACK UP GAS RESULTANT SAFETY FACTOR -
18000 18000 16848 1.125
SIZE:
18,000 18,000 18,000 0.46 0.465 5 0.115 0.115 0.465 18.0 18.0 1.250 1.125 x x x
5" Production Liner FEET MD FEET TVD PIPE/ MD LENGT FEET 18,000 FEET BURST EMW ( .4 PPG LESS THAN MUD WEIGHT): PSI/ PSI/FT FT PSI/FT EMW - .4 PPG = PSI/FT 17.6 PPG PSI/FT PPG COLLAPSE MUD WEIGHT: PPG MW = 18.0 PPG
0.052 0.115 2070 14778
x
18.0
COLLAPSE BURST DESIGN INJECTION PRESSBACK UP GAS RESULTANT SAFETY FACTOR -
18000 18000 16474 1.250
x x x
19-Aug-08
0.052 0.115 2070 14404
x
RECOMMENDED CASING: TVD MD - LENGT NGTH FEET FEET SIZE WT/FT GRADE CONN. BURST
17.6
= = = = =
16848 2070 14778 16625 16625
PSI PSI PSI PS P SI PSI
= =
PSI PSI PSI
BURST
=
16474 2070 14404 18005 18005
SF
COLLAPS
SF
= =
PSI
PSI
TENSION
SF
TYPE
Production casing CASING DESIGN BASED ON MAXIMUM SURFACE PRESSURE CASING DESIGN BASED ON MAXIMUM SURFACE PRESSURE - PRODUCTION CASING DESIGN: CONDI CONDITI TION ONS: S: MD: DEPTHBHP DEPTH SALT SALTWA WATE TER R BACK BACK U GAS BACK UP BURST BACKUP COLLAPSE BACK UP TD MUD WEIGHTCASING DEPTH MUD WT. BURST SAFETY FACTOR COLLAPSE COLLAPSE SAFETY SAFETY FACTO FACTO
COLLAPSE DESIGN: INJECTION PRESSBACK UP GAS RESULTANT SAFETY FACTOR -
11300 11300 9108 1.125
SIZE:
11,300 11,300 11,900 0.46 0.465 5 0.115 0.115 0.115 15.5 15.5 1.250 1.125 x x x
2-7/ 2-7/8" 8" Prod Produc ucti tion on Tub Tubin ing g FEET MD FEET PIPE/ MD LENGTH FEET 11,300 FEET BURST EMW ( .4 PPG LESS THAN MUD WEIGHT): PSI/ PSI/FT FT PSI/FT EMW - .4 PPG = PSI/FT 15.1 PPG PSI/FT PPG COLLAPSE MUD WEIGHT: PPG MW = 15.5 PPG
0.052 0.115 1300 7808
x
15.5
COLLAPSE BURST DESIGN INJECTION PRESSBACK UP GAS RESULTANT SAFETY FACTOR -
11900 11900 9344 1.250
x x x
19-Aug-08
0.052 0.115 1369 7975
x
RECOMMENDED CASING: TVD MD FEET FEET SIZE WT/FT GRADE CONN. BURST
15.1
= = = = =
9108 1300 7808 8784 8784
PSI PS PSI PSI PS PSI PSI
= =
9344 1369 7975 9969 9969
PSI PSI PSI
= =
BURST
=
SF
COLLAPS
SF
PSI
PSI
TENSION
SF
TYPE
GRAPH
MISSION RESOURCES CORPORATION ARGO PROSPECT
35000
30000
25000
E 20000 R U S S E R 15000 P
DESIGN
11620
-228
11620
RESULTANT
-228
10000
BK/UP
-228
5000
LOAD
-228
0
-228
11620
11620
0 11620
DEPTH
LOAD LINE
BACKUP LINE
Page 10
RESULTANT LINE
DESIGN LINE
