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1/12SPP-20-50-CS-001 Rev. 0 Calculation Page 1 of 3

PIPELINE BUOYANCY ANALISYS

Design Parameter

Pipe Properties

- Pipe outside diameter, D in.! " 20 "

- Pipe %all t&ic'ness, tp in.! " 0.50 "

- Pipe inside diameter, )D in.! " 1$ "

- *nti-corrosion coating t&ic'ness, ta in! " 0.10+ "

- aterial " *P) 5 r./5 R "

- SS psi! " 5,000

- ac& Standard *verage Pipe engt& ft! " 3$.3+

Buoyancy Calculation

Pipe %eig&t per unit lengt&

" (.$1 l4in

" 0.23 l4in

Pipe %eig&t 6 Coating %eig&t per unit lengt& " (.$2 l4in

" 1+.1($3 l4in

" 1$.3(0(2 l4in

7et 8uo9anc9 " 10.# l4in

8uo9anc9 per segmen pipe lengt& 12 m! " #$#3.10 l4

!

Densit9 fluid soil, m l4ft>!

Concrete Coating ?&ic'ness, tcin!

*nti corrosion coating%eig&t per unit lengt&

lengt&

?otal 8uo9anc9 @plift ;orce per unit lengt& %it& design factor1.1

Pipeline Sta4ilit9 Criteria is determined 49 comparing t&e %eig&t of pipe6anticorrosion coating versus uplift forcedesign factor!, t&en:

Pipe %eig&t 6 Coating %eig&t perunit lengt&

?otal 8uo9anc9 @plift ;orce per unit lengt&%it& design factor 1.1

C);)C SD7 8AD7*R7*C*P - ?A)SS B)7?7?@R

C);)C SD7 8AD7*R7*C*P - ?A)SS B)7?7?@R

C);)C SD7 8AD7*R7*C*P - ?A)SS B)7?7?@R

C);)C SD7 8AD7*R7*C*P - ?A)SS B)7?7?@R

C);)C SD7 8AD7*R7*C*P - ?A)SS B)7?7?@R

C);)C SD7 8AD7*R7*C*P - ?A)SS B)7?7?@R

C);)C SD7 8AD7*R7*C*P - ?A)SS B)7?7?@R

C);)C SD7 8AD7*R7*C*P - ?A)SS B)7?7?@R

]2)(D2D[4 p

2t--

xpp

W =

]D)(D[4

22-

a2t+=

xW aa

]2)(D[4 c

2ta

2t ++=

xWmu

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SPP-20-50-CS-001 Rev. 0 Calculation Page 1 of 3

$0.3 " 0.2(3+# l4in>

5( " 0.033 l4in>

0 " 0 l4in>

#.(+ " 0.05#$ l4in>

0 " 0 in

of pipe %it&

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8/9/2019 Pipeline Buoyancy Analysis

5/12SPP-20-50-CS-001 Rev. 0 Calculation Page 2 of 3

PIPELINE BUOYANCY ANALISYS

DESIN INPU!S

Pipe Properties :

- Pipe outside diameter, D in.! " 20 "

- Pipe %all t&ic'ness, tp in.! " 0.5 "

- Pipe inside diameter, )D in.! " 1$ "

- *nti-corrosion coating t&ic'ness, ta in! " 0.10+ "

- aterial " *P) 5 r. /5 R Design Safet9 ;actor S; "

- Specified inimum ield Strengt&, SS psi! " 5,000

- ac& Standard *verage Pipe engt& ft! " 3$.3+

CALCULA!IONS

Pipe %eig&t per unit lengt& " (.$1 l4in

" 0.22$ l4in

BUOYANCY CON!"OL OP!IONS

OP!ION # I$ CON!INUOUS CONC"E!E COA!IN

*! Determination of Concrete Coating ?&ic'ness, tc

Pipeline eig&t 6 *nti-corrosion coating %eig&t 6 Concrete Coating %eig&t " 1.1 E ?otal 8uo9anc9 @plift ;orce

Concrete coating %eig&t per unit lengt&

" .$( tc 6 0.3#5# tcF

?otal 8uo9anc9 @plift ;orce per unit lengt&

" 1$.3(0 6 3.(35 tc 6 0.1$0 tcF

0.15 tcF 6 3.1#( tc 6 -10.#2 " 0

?&ic'ness of concrete coating tc, " 2.$02 in. %it&out concrete coating cut4ac'!

" 3$.3+ ft or #+2.##1 in

Concrete coating cut 4ac' at eac& pipe end " 5.$1 in or 150 mm

" #0.3 in or 11+00 mm

Densit9 of pipe, GP l4ft>!

Densit9 of anti-corrosion coating, Ga l4ft>!

Densit9 of continuous concrete coating, Gc l4ft>!

Densit9 of fluid soil, Gm l4ft>!

*nti-corrosion coating %eig&t perunit lengt&

)nput 'no%n value of GP, G

a, G

c, D, t

p, t

a, S;, and su4stitute 1!, 2!, 3!, #! into e

8/9/2019 Pipeline Buoyancy Analysis

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" 2.$+2 in +5 mm !

" %&'' in + mm !

@sing e

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#$0.3 " 0.2(3+ l4in>

5( " 0.033 l4in>

1$0 " 0.1100 l4in>

$#.(+ " 0.05#$ l4in>

1.1

-----

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PIPELINE BUOYANCY ANALISYS

DESIN INPU!S

Pipe Properties :

- Pipe outside diameter, D in.! " 20 #$0.3 " 0.2(

- Pipe %all t&ic'ness, tp in.! " '&( 5( " 0.03

- Pipe inside diameter, )D in.! " )* 1#0 " 0.0(

- *nti-corrosion coating t&ic'ness, ta in! " '&)'+ $#.(+ " 0.

- aterial " *P) 5 r. /5 R Design Safet9 ;actor S; )&)

- Specified inimum ield Strengt&, SS psi! " 5,000

- ac& Standard *verage Pipe engt& ft! " 3$.3+

CALCULA!IONS

OP!ION # II $ CONC"E!E SE!#ON ,EI-!

a " #50.0 mm

4 " 520.0 mm

c " 50.0 mm

d " 500.0 mme " #00.0 mm

f " 350.0 mm

g " $00.0 mm

!y.ical Concrete Set On ,eig/t

Cross section area of concrete %eig&t, *c% inF! :" )01'2 inF

olume of concrete %eig&t, c% in>! :" %(0*++ in>

?&e proposed concrete set-on %eig&t, c% " 2,$15.00 l4 " 1322 'g

8uo9ant force due to fluid displaced 49 concrete set-on %eig&t,8c% " 1,$+5.00 l4 " ($ 'g

ffective Set n eig&t,c%eff! " $#0.00 l4 " #2 'g

eig&t eac& pipe " #,10+. l4

8uo9ant force of eac& pipe Hoint " #,$#3.10 l4

Aence saddle %eig&ts re!

Densit9 of anti-corrosion coating, al4ft>!

Densit9 of concrete set-on %eig&t, c2

l4ft>!

Densit9 of fluid soil, ml4ft>!

ac& lengt& of line pipe s&all 4e installed %it& additional+saddle %eig&t

S)* P*C);)C SD7 8AD? S)7*R @)*7*C*P - ?A)SS B)7? 7?@RS)* P*C);)C SD7 8AD? S)7*R @)*7*C*P - ?A)SS B)7? 7?@RS)* P*C);)C SD7 8AD? S)7*R @)*7*C*P - ?A)SS B)7? 7?@RS)* P*C);)C SD7 8AD? S)7*R @)*7*C*P - ?A)SS B)7? 7?@RS)* P*C);)C SD7 8AD? S)7*R @)*7*C*P - ?A)SS B)7? 7?@RS)* P*C);)C SD7 8AD? S)7*R @)*7*C*P - ?A)SS B)7? 7?@RS)* P*C);)C SD7 8AD? S)7*R @)*7*C*P - ?A)SS B)7? 7?@RS)* P*C);)C SD7 8AD? S)7*R @)*7*C*P - ?A)SS B)7? 7?@R

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8/9/2019 Pipeline Buoyancy Analysis

11/12SPP-20-50-CS-001 Rev. 0 Calculation Page 3 of 3

3( l4in>

5 l4in>

1$ l4in>

#$ l4in>

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