Item no Title Filetype 1 Wall thickness calculation based on asme b31.8 excel 2 Wall thickness calculation based on ASME B31.4 & B31.8 , 30 CFR Part 250, 49 CFR Parts 192 & 195 and DNV OS-F101 Mathcad 3 Wall Thickness calculation based on ISO 13623 Mathcad 4 Upheaval buckling analysis for onshore pipelines excel 5 Wall Thickness calculation based on ISO 13623 Mathcad 6 Cathodic protection calculations for onshore pipeline excel 7 Cathodic Protection calculations for subsea pipelines Mathcad 8 Two phase flow calculation sheet excel 9 Line size of gas and liquid pipelines excel 10 DP for single and two phase flow excel 11 calculation of Pipeline Pressure surge - water hammer Mathcad 12 Pipeline allowable span DNV 81 Mathcad 13 Pipeline allowable span DNV 2000 F-105 Mathcad 14 Allowable span- Fatigue Life DNV GL14 Mathcad 15 expansion loop calculation excel 16 Subsea Pipeline expansion analysis Mathcad 17 Subsea Pipeline on bottom stability analysis Mathcad 18 On bottom stability check RP E305 Mathcad 19 Pipeline stability (Rock berm) Mathcad 20 Calculation of saftey chek of pipeline fault crossing excel 21 Anchor block design excel 22 J-Tube anchor clamp calculation Mathcad 23 J-Tube friction clamp calculation Mathcad 24 Stress check of Welded neck flange Mathcad 25 Sviwel flange design Mathcad The price for this collection is 50 US$ Useful Calculation sheets for Oil and Gas Pipeline Engineering (Offshore & Onshore) If you are intrested to order following files pls send your request to [email protected]Design
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Item no Title Filetype
1 Wall thickness calculation based on asme b31.8 excel
2Wall thickness calculation based on ASME B31.4 & B31.8 , 30 CFR Part 250, 49 CFR Parts 192 & 195 and DNV OS-F101
Mathcad
3 Wall Thickness calculation based on ISO 13623 Mathcad
4 Upheaval buckling analysis for onshore pipelines excel
5 Wall Thickness calculation based on ISO 13623 Mathcad
6 Cathodic protection calculations for onshore pipeline excel
7 Cathodic Protection calculations for subsea pipelines Mathcad
8 Two phase flow calculation sheet excel
9 Line size of gas and liquid pipelines excel
10 DP for single and two phase flow excel
11 calculation of Pipeline Pressure surge - water hammer Mathcad
12 Pipeline allowable span DNV 81 Mathcad
13 Pipeline allowable span DNV 2000 F-105 Mathcad
14 Allowable span- Fatigue Life DNV GL14 Mathcad
15 expansion loop calculation excel
16 Subsea Pipeline expansion analysis Mathcad
17 Subsea Pipeline on bottom stability analysis Mathcad
18 On bottom stability check RP E305 Mathcad
19 Pipeline stability (Rock berm) Mathcad
20 Calculation of saftey chek of pipeline fault crossing excel
21 Anchor block design excel
22 J-Tube anchor clamp calculation Mathcad
23 J-Tube friction clamp calculation Mathcad
24 Stress check of Welded neck flange Mathcad
25 Sviwel flange design Mathcad
The price for this collection is 50 US$
Useful Calculation sheets for Oil and Gas Pipeline Engineering (Offshore & Onshore)
If you are intrested to order following files pls send your request to [email protected]
Design
Item no Title Filetype
The price for this collection is 50 US$
Useful Calculation sheets for Oil and Gas Pipeline Engineering (Offshore & Onshore)
If you are intrested to order following files pls send your request to [email protected]
26 Pipeline Settlement in soil Mathcad
27 Horizontal directional drilling calculations for pipeline crossing excel
28 Pipe stacking calculation excel
29 Soil modeling of pipeline lies on sea bed Mathcad
30 Pull force required for Pipeline towing Mathcad
31 Soil pressure at touch down Mathcad
32 Simplified analysis for determination of stinger reaction force V-lay, J-lay vs S-lay Mathcad
33 Engineering units converter excel
34 Pipes and flanges data excel
35 Calculation of pipe basic properties excel
36 dew point calculation from psycometric table excel
37 Preliminary cost estimation for Offshore pipelines excel
38 Calculation of natural gas properties based on gas composition excel
SOME EXAMPLES:
Construction
General
As D2 D 2t−( )2− π4
⋅:= As 0.031m2= steel area
Iπ64
D4 D 2t−( )4− ⋅:= I 9.143 10 4−× m4= moment of inertia
Wdry As ρst⋅ g⋅:= Wdry 2.361kN
m= dry weight
Bπ4
D2⋅ ρsw⋅ g⋅:= B 2.038kN
m= buoyancy
Wsub Wdry B−:= Wsub 0.323kN
m= submerged weight
Sg
Wdry
B:= Sg 1.159= relative density of the pipe
Msag εLCCE− I⋅
2D⋅:= Msag 226.77− kN m⋅= allowwable bending moment in the
sagbend
Simplified analysis for determination of stinger reaction force V-lay, J-lay vs S-lay
Pipe parameters
D 20 in⋅:= D 0.508m= Pipe outside diameter
t 20 mm⋅:= * t 0.02 m= Wall thickness
SMYS 485 MPa⋅:= Specified Minimum Yield strength
E 210000 MPa⋅:= Youngs modules
ρst 7850kg
m3⋅:= density steel
Environmental paremeters
y 2500 m⋅:= Waterdepth
ρsw 1025kg
m3:= Seawater density
Lay parameter
εLCC 0.12%:= allawable beding strain in sagbend (DNV, LCC criteria)
Calculated pipe parameters
L 2.632 103× m= Sagbend Length
H LH1:= H 50kN= Required Horizontal tension for bending strain criteria
T H2 Wsub L⋅( )2+:= T 852 kN= Total tension
V Wsub L⋅:= V 850.629 kN= Vertical tension
π2
atan h L H,( )( )α L( ) h L H,( )⋅
h L H,( ) 1+( )0.75+
− 86.651 deg= lay angle from differential equation
φ atanV
H:= φ 86.67deg= lay angle calculation
Stiffened Catenary Calculations in Pipline Laying problemD.A. Dixon, D.R. Rutledge, Journal of Engineering for industry, february 1968
LD
2 εLCC⋅1
εLCC y⋅ 2⋅
D+
2
1− 0.5
⋅:= L 2.703 103× m= estimate catenary lenght
H 1εLCC y⋅ 2⋅
D+
2
1− 0.5−
Wsub⋅ L⋅:= H 68.4 kN= Lay tension
dimensionless horizontal force dimensionless touchdown point
α L( )E I⋅
Wsub L3⋅:= h L H,( )
H
Wsub L⋅:= z0 L H,( )
E I⋅
L2 H⋅( )−:=
Given
y L h L H,( )2 1+( )0.5h L H,( )2 z0 L H,( )2+( )0.5
− α L( )2 1
h L H,( )0.5 h L H,( )2 z0 L H,( )2−( )0.75⋅
h L H,( )2
h L H,( )2 1+( )2−
⋅+
⋅=
Msagh L H,( )
h L H,( )2 z0 L H,( )2+
h L H,( )2 z0 L H,( )2+( )0.25
h L H,( )1.5−
E I⋅L
⋅=
LH Find L H,( ):=
L LH0:=
Rv 1.439kN=Rv Rvst sin β( )⋅:=d 0.576m=d sin β( ) clv⋅:=
Rh 49.5 kN=Rh Rvst cos β( )⋅:=Rvst 49.521 kN=Rvst T 2⋅ sin β( ):=Support reactions:
VRadius 341.3m=chord angleβ 1.665deg=β
π2
φ−
2:=
VRadius
clv
2 cosπ4
φ2
+ :=Stinger chord length and radius clv 19.833 m=clv
19.8m
sin φ( ):=
V - lay
φ
(π/2 +φ)/2
(π/2 +φ)/2
(π−φ)/2
(π−φ)/2
φ/2
(π/2 −φ)/2
φ
(π/2 +φ)/2
(π/2 +φ)/2
(π−φ)/2
(π−φ)/2
φ/2
(π/2 −φ)/2
SRadius
cls
2 cos 0.5 π φ−( )⋅ ⋅:=
βφ2
:= β 43.335 deg= SRadius 80.1 m=
Rsst T 2⋅ sin β( ):= Rsst 1.169 103× kN= Rhs Rsst sin β( )⋅:= Rhs 802.568 kN=
d sin β( ) cls⋅:= d 75.489 m= Rvs Rsst cos β( )⋅:= Rvs 850.629 kN=
R sst
T
V
H
Rhs
RvsSum H = 0 round T H− Rhs−( ) 0 kN=
Sum V = 0 round V Rvs−( ) 0 kN=
Sum M = 0 round T d⋅ Rsst
cls
2⋅− 0 kN m⋅=
R vst
T
V
HRh
Rv
Sum H = 0 round H Rh−( ) 0 kN=
Sum V = 0 round T V− Rv−( ) 0 kN=
Sum M = 0 round T d⋅ Rvst
clv
2⋅− 0 kN m⋅=
R jst
TV
HRhj
Rvj
J - lay
Rhj H:= Rhj 49.5 kN=
Rvj V:= Rvj 850.629 kN=
Rjst T:= Rjst 852.068 kN=
Sum H = 0 , sum V = 0 and Sum M = 0
S - lay
Stinger chord length cls 110 m⋅:=
year 365 day⋅≡day 24 hour⋅≡hour 60 minute⋅≡minute 60 s⋅≡
Ultimate bearing capacity of soilUltimate bearing capacity of soilTolerance of iterations
Submerged unit weight of pipePipe width in contact with soil after sinkage
d + 2Tcte + 2Tconc
P / BC NC + 0.5 B γsoil Nγ
Wp + We + Wcte + Wconc + Wcon t - Wbouy
Brinch Hansen's Bearing capacity factors
Unit weight of pipeUnit weight of corrosion coatingUnit weight of concrete coatingUnit weight of pipeline contentBouyancy of unit length of pipeSubmerged unit weight of pipe
π [d + Tcte] Tcte Dcte
π [d + 2Tcte + Tconc] Tconc Dconc
0.25 π [d - 2Tp]2 Dprod
0.25 π [d + 2Tcte + 2Tconc]2 Dw
Angle of Friction of soil (For Sandy Soil only else 0)
CALCULATIONSe π tan φ tan2 [45 + ( Φ / 2)]
[Nq - 1] cot Φ1.5 [Nq - 1] tan Φ
π [d - Tp] Tp Ds
-
Density of pipe contentUnit extra weightSubmerged density of soilCohesion of soil (For Clayey Soil only else 0)
Pipe outer diameterPipe wall thicknessThickness of corrosion coatingConcrete coating thicknessDensity of steelDensity of corrosion coatingDensity of concreteDensity of water