Bourbon - Offshore - Surf - SMS manual 2016

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Page Background

A

nc

h

or

H

andlin

g

and To

w

in

g

O

p

erations

P

rocedure

BOS-

P

RD-2

6

.900

6

14

C. Bolstering the anchor

W

hen

reach

i

ng

the

r

i

g

’

s

s

i

de

,

the

anchor w

ill

be

rac

k

ed

on

the

bo

l

ster

. N

ote

that

the

vesse

l

has

to

app

l

y

suff

i

c

i

ent

thrust

to

k

eep

contro

l

on

the

or

i

entat

i

on

of

the

anchor

. W

hen

the

anchor

i

s

i

n

pos

i

t

i

on

,

the

chaser

pennant w

i

re w

ill

be

d

i

sconnected

and

g

i

ven bac

k

to

the

r

i

g

.

T

he

vesse

l

must

be

i

n

safe

d

i

stance

from

the

r

i

g

and

try

to

k

eep

constant

tens

i

on

of

the

sh

i

p

w

i

nch

us

i

ng

the

prope

ll

er

p

i

tch

and

the

tens

i

on

contro

l

at

the w

i

nch

. T

h

i

s

i

s

to

avo

i

d

the

anchor

to s

li

p

through

the

chaser

.

W

hen

the

r

i

g

i

s

heav

i

ng

the

cha

i

n

,

the

vesse

l

should

k

eep

a

d

i

stance

of

at

l

east

1

5

0

to

200

metres

from

the

r

i

g

,

wh

il

e

k

eep

i

ng

a

tens

i

on of

at

l

east

3

0

to

40

tons

.

T

he

vesse

l,

ma

i

nta

i

n

i

ng

the

ment

i

oned

d

i

stance

,

pays

out

the

pennant

,

wh

il

e

the

r

i

g

s

i

mu

l

taneous

l

y

heaves

the

cha

i

n

. T

he

tens

i

on

shall

be

k

ept

unt

il

the

anchor

i

s

comp

l

ete

l

y

bo

l

stered

.

At

the moment

the ma

i

n

(

bow

)

shac

kl

e

of

the

anchor

touches

the

anchor

rac

k, i

t

i

s

essent

i

a

l

that

the

w

i

nch

be

br

i

ef

l

y

stopped

,

so

the

anchor

can

sett

l

e

i

n

the

proper

pos

i

t

i

on

for

rac

ki

ng

. O

therw

i

se

,

the

w

i

ngs

on

the

shan

k

w

ill

rotate

the

anchor

,

turn

i

ng

i

ts

bac

k

towards

the

rac

k.

W

hen

the

anchor

i

s

proper

l

y

rac

k

ed

,

put

the

PCP

end

i

n

the

w

i

re

stopper

,

connect

the

r

i

g's

crane

hoo

k

to

a

w

i

re

strap

through

the

eye

of

the

pennant

. R

e

l

ease

the

PCP

from

the

vesse

l

w

i

re

stopper when

the

r

i

g

crane

i

s

ready

to

ta

k

e

the

chaser

pennant on

board

.

R

eturn

i

ng

a

PCP

to

the

r

i

g

after

chaser

has

been

str

i

pped

bac

k

w

ill

norma

ll

y

cause

a

snatch

l

oad

on

r

i

g

’

s

crane

. T

o

avo

i

d

th

i

s

,

crane

fa

ll

should

be

vert

i

ca

ll

y

above

vesse

l’

s

stern

ro

ll

er when

the

chas

i

ng

pendant

i

s

re

l

eased

.

Vers

i

on

S

F

(BOS-

P

RD-0

7

01.000

5

-

ver

.

C

R). O

r

i

g

i

na

l D

ate

:

3

1/12/201

5

.

Vers

i

on

D

ate

: N/

A

.

Va

li

d

vers

i

on

on

l

y on QM

S

s

i

te

.

Page

27

of

60

Procedure prepared by

: BOS

Head

of

O

perat

i

ons

.

Approved

by

: BOS

Head

of

O

perat

i

ons

.

Va

li

dated by

: BOS

Qua

li

ty

R

epresentat

i

ve

.

603