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Dy

na

m

ic

P

ositionin

g

O

p

erations

BOS-

P

RD-2

6

.900

6

0

6

measures

to be

i

n

p

l

ace

to

ach

i

eve

the

re

q

u

i

red

res

i

stance

,

m

i

n

i

m

i

zat

i

on

of

l

oss

of

pos

i

t

i

on

and

robustness

of

recovery

i

n

D

P

.

O

p

erations Mana

g

ers an

d

Master

must ensure

that

each

step

i

s

successfu

ll

y

comp

l

eted

, i

n

order

to

estab

li

sh we

ll-

structured

operat

i

ona

l

cr

i

ter

i

a

for

env

i

ronmenta

l

and

e

q

u

i

pment

performance

li

m

i

ts

,

to

support

safe and eff

i

c

i

ent

D

P

operat

i

ons

.

E

x

amp

l

e of

C

r

i

t

i

ca

l

Act

i

v

i

ty Mode

C

AM

4

.

6

.

3

E

x

a

mp

le o

f C

ritical

A

cti

v

it

y

Mo

d

e o

f

O

p

eration (

CA

MO)

P

l

ease note

that th

i

s e

x

amp

l

e

i

s based upon

a

C

AM

O

where the operator

app

li

ed

spec

i

f

i

c re

q

u

i

rements on

the vesse

l

and may not necessar

il

y app

l

y to a

ll

cases

.

E

XA

M

PL

E

C

ritical

A

cti

v

it

y

Mo

d

e o

f

O

p

eration

– N

a

m

e o

f L

o

g

istics

V

essel

N

o

TA

M o

p

erations

p

er

m

itte

d

Th

i

s set

-

up app

li

es when the

vesse

l i

s carry

i

n

g

out

D

P operat

i

ons w

i

th

i

n the

5

00

m

zone of an offshore fac

ili

ty

–

AF

I

(agreed for

i

mp

l

ementat

i

on)

D

ate

Vesse

l

to be

set up and stab

ili

sed on

D

P before enter

i

ng the 5

00

m zone

.

E

xi

t

i

ng

the 5

00

m zone may be done on

joyst

i

ck

,

manua

l

or

D

P

C

on

d

ition

G

reen

Adv

isor

y

N

oti

fy m

aster

,

c

h

ie

f

en

g

ineer

,

client re

p

(i

f

on

b

oar

d

) an

d

ri

g

/

p

lat

f

or

m

N

O

YE

S

A

ction

C

ontin

u

e nor

m

al

o

p

erations

In

f

or

m

ati

v

e/

cons

u

ltati

v

e stat

u

s

(ris

k

assess

m

ent)

S

w

i

tchboard set up

A

ll

bus t

i

es

O

PEN

Any other conf

i

gurat

i

on

S

G1

, S

G

2,

AG1 and AG

2

(test

i

ng)

S

G1 and

S

G

2

on

li

ne

.

AG1

and AG

2

standby

Any other set

-

up

,

or

prob

l

ems found

Emergency generator

S

e

l

ected to auto start and

ava

il

ab

l

e for

i

mmed

i

ate

use

.

Auto

start/connect

and

l

oad

tested pr

i

or

to

arr

i

va

l

on f

i

e

l

d

Any other conf

i

gurat

i

on or

known def

i

c

i

enc

i

es

reduc

i

ng redundancy

Bl

ackout dr

ill

(s

i

ng

l

e fue

l

system)

Bl

ackout dr

ill

conducted

for a

ll D

P

O

s and

eng

i

neers onboard

,

procedures

i

n p

l

ace

Any

D

P

O

s on watch or

eng

i

neers not performed

b

l

ackout recovery dr

ill i

n

l

ast

s

ix

months

D

P power supp

l

y

A

ll

UP

S

un

i

ts fu

ll

y

funct

i

ona

l,

not operat

i

ng

on bypass and tested on

l

oad

24

hours pr

i

or

to f

i

e

l

d

arr

i

va

l.

Note:

B

atter

i

es

must be at opt

i

mum

charge

l

eve

l

before

enter

i

ng 5

00

m)

Any other conf

i

gurat

i

on or

known def

i

c

i

enc

i

es

reduc

i

ng redundancy or

endurance

.

Not

tested for

3

0

m

i

nute endurance pr

i

or

to f

i

e

l

d arr

i

va

l

Vers

i

on

S

F (

BOS-

P

RD-0

7

0

1

.000

6

-

ver

.

C

R

)

.O

r

i

g

i

na

l D

ate:

31/1

2

/

20

15

.

Vers

i

on

D

ate:

N/A

.

Va

li

d

vers

i

on

on

l

y

on

QM

S

s

i

te

.

Uncontro

ll

ed

document

when

pr

i

nted

.

Page

22

of

44

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

.

468