OCC Combination Strings for the Intermediate Casing Research Paper This is a project, I need it to be fully paraphrased, both word and excel file and I nee
OCC Combination Strings for the Intermediate Casing Research Paper This is a project, I need it to be fully paraphrased, both word and excel file and I need turnitin report for both. kkkkk
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Abstract:
Miles well operated by Newfield production company was
selected in Duchesne county in Utah with TVD of 10600 ft was
selected to design the most suitable combination string based on
both of its grade and inner diameter. The well is made of unita
formation. Designing the most suitable combination strings for
the intermediate casing require some information to be collected
from the previous two projects.
Problem Statement:
Using the well information such as its location, depth, and
other production data was collected from the well data
information to design the most suitable combination string for
the intermediate casing based on its grade and its inner
diameter. By using the selected designs in the previous projects
to check if the intermediate casing depth is greater than 4000
ft. If its less than 4000 ft then a designing a vertical
production casing at the final depth. By designing the
intermediate casing all of the safety factors and the economics
of designing should be taken into consideration.
Intermediate Casing:
Burst design
Pressure Inside CSG:
–
At bottom (Injection gradient)
????????
????
) ? (14.3) ? 8864 = 6951.27 ????????
??????
0.052
?????? @???????????? = (
– At top (Gas gradieant)
??
= 0.052 ? ????
??
??
6951.27 + 14.7) ? 16.04
??????
= 0.052 ? (
) = 0.11
??
????
80.1 ? (520 + 0.012 ? (8864))
?????? @?????? = 6951.27 ? (0.11 ? 8863) = 5617.82 ????????
Pressure outside CSG:
??????@???????????? = 0.55 ? 8864 = 4875.2 ????????
??????@?????? = 0 ????????
Resultant Burst Pressure:
–
Bottom
?????????????? = ?????? @???????????? ? ??????@????????????
?????????????? = 6951.27 ? 4875.2 = 1716.07 ????????
– Top
???????? = ?????? @?????? ? ??????@??????
???????? = 5617.82 ? 0 ? 5817.82 ????????
Selecting the burst design will be multiplying the
resultant burst pressure by the burst design factor
????????????@?????? = 1716.07 ? 1 = 1716.07 ????????
????????????@?????? = 5817.82 ? 1 = 5817.82 ????????
Burst
Inside CSG
P_bibot
6591.2704
P_bitop 5617.824097
Outside CSG
P_bot
4875.2
P_top
0
Resultant Pressure
P_bot
P_top
1716.0704
5617.824097
Design
P_bot
P_top
1716.0704
5617.824097
Casing Selection:
Grade
H-40
LS-65
Nominal Weight
Casing
PE
ID
Length
20 2720
6.456
6583.273777
23 4420
6.241
2721.215541
Burst design
Resultant
-864 0
Design
1000
2000
External
H-40
3000
4000
-1864
Depth, ft
-2864
-3864
-4864
-5864
-6864
-7864
-8864
Pressure, psig
Collapse Design
Pressure outside CSG
At bottom
??????@???????????? = (
????????
????
0.052
??????
) ? (9.5) ? 8864 = 4378.8 psig
??????@?????? = 0 ????????
Pressure Inside CSG
??????
1
)?
)
??
0.052 ? ????????
???? = ?? ? (1 ? (
?????? @?????? = 0 ????????
Resultant Collapse Pressure:
?????? ?????? = ?????? @?????? ? ?????? @?????? = 0 ????????
LS-65
5000
6000
?????? = 1775.9 ????????
?????? @???????????? = ??????@???????????? ? ??????@???????????? = 3047.7 ????????
Selecting the burst design will be multiplying the
resultant burst pressure by the burst design factor
????????????????????@?????? = 3047.7 ? 1.125 = 3428.7 ????????
????????????@?????? = 0 ? 1.125 = 0 ????????
Dm
Collapse
2759.763314
Inside CSG
P_bibot
3015.492923
P_bitop
0
Resultant Pressure
P_bot
3047.707077
P_top
0
P_dm
1578.584615
P_bot
P_top
P_dm
Outside CSG
P_bot
6063.2
P_top
0
Design
3428.670462
0
1775.907692
Casing Selection:
Grade
L-80
L-80
Casing
Nominal Weight
Collapse Pressure
ID
23
3830 6.366
26
5410 6.151
Collapse design
Resultant
-864
0
Design
1000
External
2000
internal
3000
L-80 (26 lb/ft)
4000
5000
L-80 (23 lb/ft)
6000
7000
-1864
Depth, ft
-2864
-3864
-4864
-5864
-6864
-7864
-8864
Pressure, psig
Corrected Collapse:
For this section, we will do the corrected collapse for
both of our Casing proposal grades (L-80).
???? = ???1????1 + ??1 ??1 + ??2 ?????2
????2 =
????
0.052 ? ?? ? 1.1
??1 = ???????????? ??????????? ? ????2
?? = 2 ? ?? ? ????????
???????? = 80,000 ??????
?????? =
????
? (????????(?? 2 ? 3????2 ) ? ???? )
??
The summary for both of the grades:
Corrected Collapse (First L-80)
pc
Ds1
L1
Fa
3830
4682.380557 4181.619443 75893.23703
3527.745905 4312.858703 4551.141297 84392.23966
3490.21678 4266.977333 4597.022667 85447.51117
3485.504535 4261.216362 4602.783638 85580.01351
3484.912034 4260.491997 4603.508003 85596.67389
Pcc
3527.745905
3490.21678
3485.504535
3484.912034
3484.837522
Corrected Collapse (Second L-80)
Ds2
L2
Fa
661.4015355 3599.090462 66850.62224
627.6321158 3632.859882 67728.62715
627.1584688 3633.333529 67740.94197
627.1518199 3633.340178 67741.11484
627.1517266 3633.340271 67741.11727
Pcc
5133.779654
5129.905412
5129.851026
5129.850263
5129.850252
pc
5410
5133.779654
5129.905412
5129.851026
5129.850263
Burst + Collapse Design
Depth
Length
LS-65
2721 ft
23 #/ft
L-80
1879 ft
23 #/ft
Ls-65
630.6 ft
23 #/ft
L-80
26 #/ft
8864 ft
Tension Design:
3633.4 ft
???? = ?????1 + ????1 + ??2??2 + ????2 + ????3 + ????3 + ????4 + ????4
Area Calculation:
????1 =
??
2
? (???????????? ???????? 2 ? ??????????
)
4
Tension Areas (in^2)
A1
A2
A3
A4
7.893187925
0.875938864
1.237689331
1.237689331
Pressure Calculation:
?? = 0.052 ? ?? ? ?????????
Tension Pressures (psi)
P1
5070.208
P2
2991.9032
P3
2631.2
P4
1442.012
Weight and Length Values:
w1 #/ft
w2 #/ft
w3 #/ft
w4 #/ft
Weight and Length Table
23 L1 ft
23 L2 ft
23 L3 ft
26 L4 ft
F_a
178844.665
2721
1879
630.6
3633.4
Summary of results:
First, we had to calculate the forces on the casing in the
burst, collapse, tension. In the burst section, we calculated
the pressure on top and the bottom, on both of inside and
outside the casing. Then calculating the resultant pressure to
get the design pressure by multiplying it by the design factor.
We got the pressures to be Pbot = 1716 psi and Ptop = 5617.8
psi. Then we can select the casing grades based on the pressure
the casing grades selected are H-40 and LS-65.
Repeating the same steps, we will calculate the pressures
for the collapse, we got the design pressure to be P_bot = 3428
psi and P_top = 0 psi and P_dm = 1775.9 psi. The grades selected
for the collapse section are L-80 with nominal weight of 23 and
L-80 with nominal weight of 26 using these pressures, we can
calculate the corrected collapse pressure, and do the steps for
it 5 times we got the corrected collapse pressure for the first
grade to be 3484.84 psi and for the second grade to be 5129.85
psi. Then design a collapse + burst casing to use it for
calculating the tension. In the tension area, we will first
calculate the areas then the pressures to calculate the axial
force to be 178844.66 lbs.
Conclusion:
In conclusion, and intermediate casing was designed based
on its grade in ID. By calculating the burst and collapse forces
and the corrected collapse pressure. After calculating the
values for the burst, collapse, corrected collapse values, a
design line can be determined. Then in the tension section we
can calculate the axial tension by calculating the areas and
pressures for each section in the design.
References
Bilgesu. Huseyin. (2019) PNGE310 slides. West Virginia University.
https://ecampus.wvu.edu/webapps/blackboard/execute/content/
file?cmd=view&content_id=_5539550_1&course_id=_120264_1
Miles
#15-8-3-2
|
API
#43-013-50814
|
Newfield
Production
Company. DrillingEdge.com – Oil and Gas Data as a Service,
2017,
www.drillingedge.com/utah/duchesne-county/wells/miles-15-8-3-2/43-013-
50814.
Utah Department of Natural Resources Division of oil, Gas and
mining
(UDOGM).
(2019)
Utah
Data
Mining.
(2014)
tables.
https://datamining.ogm.utah.gov
Worldoil.
(2019)
Drill
bit
classifier
https://www.worldoil.com/media/1059/drill_bit_classifier.pd
f675
Hole size (in)
Casing size ( in)
Casing length (ft)
Minimum section length (ft)
Pore Pressure (psi/ft)
Injection gradient @4000 ft
Temp Gradiant
Kick fluid gradiant (psi/ft)
Mud density before CSG
Mud density After CSG
Next CSG setting depth (ft)
Design factor:
Burst
Collapse
Tension
Collapse mud weight
Area 1
K
Area 2
K2
8.75
7
8864
100
0.55
14.3
626.368
0.055
11
14.3
10600
1.125
1
1.125
1.6
9.5
6.65549859
1064879.78
8.76912679
1403060.29
P/D top
Burst
0.10982021
Inside CSG
P_bibot
6591.2704
P_bitop
5617.8241
Outside CSG
P_bot
P_top
Dm
Collapse
A1
A2
A3
A4
2759.76331
Inside CSG
P_bibot
3015.49292
P_bitop
0
4875.2
0
Tension Areas
7.89318792
0.87593886
1.23768933
1.23768933
w1 #/ft
w2 #/ft
w3 #/ft
w4 #/ft
Weight and Length Table
23 L1 ft
23 L2 ft
23 L3 ft
26 L4 ft
F_a
178844.665
Outside CSG
P_bot
P_top
P1
P2
P3
P4
Tension Pressure
5070.208
2991.9032
2631.2
1442.012
2721
1879
630.6
3633.4
6063.2
0
Resultant Pressure
P_bot
1716.0704
P_top
5617.8241
Resultant Pressure
P_bot
3047.70708
P_top
0
P_dm
1578.58462
P_bot
P_top
Design
1716.0704
5617.8241
P_bot
P_top
P_dm
Design
3428.67046
0
1775.90769
Casing
Grade
H-40
LS-65
Nominal Weight PE
20
23
ID
Grade
L-80
L-80
Casing
Nominal Weight Collapse Pressure ID
23
3830
26
5410
2720
4420
Length
6.456 6583.27378
6.241 2721.21554
6.366
6.151
Pc
Ds2
L1
Corrected Collapse (first L-80)
3830 Fa
4682.380557 Pcc
4181.619443
Corrected Colla
75893.237
3527.7459
Pc
Ds2
L1
Corrected Collapse (Second L-80)
5410 Fa
6614.015355 Pcc
2249.984645
10535284.4
#NUM!
pc
3830
3527.7459
3490.21678
3485.50454
3484.91203
9304.48932
Corrected Collapse (First L-80)
Ds1
L1
Fa
4682.38056 4181.61944 75893.237
4312.8587 4551.1413 84392.2397
4266.97733 4597.02267 85447.5112
4261.21636 4602.78364 85580.0135
4260.492
4603.508 85596.6739
Pcc
3527.7459
3490.21678
3485.50454
3484.91203
3484.83752
pc
5410
5133.77965
5129.90541
5129.85103
5129.85026
Corrected Collapse (Secon
Ds2
661.401536
627.632116
627.158469
627.15182
627.151727
Corrected Collapse (Second L-80)
L2
Fa
3599.09046 66850.6222
3632.85988 67728.6272
3633.33353 67740.942
3633.34018 67741.1148
3633.34027 67741.1173
Pcc
5133.77965
5129.90541
5129.85103
5129.85026
5129.85025
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