473/ Dynamic Positioning Operations / 992
Dy
na
m
ic
P
ositionin
g
O
p
erations
BOS-
P
RD-2
6
.900
6
0
6
Pr
i
or
to
any
h
i
g
h
r
i
s
k D
P
operat
i
ons
(
ma
i
n
l
y
on
board
vesse
l
s
en
g
a
g
ed
i
n
subsea
serv
i
ces
and
on
board
any
type
of
D
P
vesse
l
dur
i
n
g
s
i
mu
l
taneous
operat
i
ons
on
D
P
),
add
i
t
i
ona
l
tests
(
e.g.
D
P mode
l
tests
)
and
s
i
te
data
ac
q
u
i
s
i
t
i
on
(
e.g.
current measurements
,
dr
i
ft
tr
i
a
l
s
)
should
be
performed
to
obta
i
n
v
i
ta
l D
P
system
or
wor
k
s
i
te
spec
i
f
i
c
i
nformat
i
on
for
i
nput
i
nto
the
pos
i
t
i
on
r
i
s
k
assessment
.
T
he outputs
of
the
D
P
r
i
s
k
assessment
sha
ll
be
the
i
nputs
for
the deve
l
opment of
the A
SOG
4
.
6
.
5 A
cti
v
it
y Sp
eci
f
ic o
p
eratin
g gu
i
d
elines
Act
i
v
i
ty
S
pec
i
f
i
c
O
perat
i
on
G
u
i
de
li
nes
are
based
on
pr
i
nc
i
p
l
es
def
i
ned
i
n
vesse
l’
s
CAM
O
but
are
bu
il
t
to
respond
at
spec
i
f
i
c
i
t
i
es
of
a
k
nown
l
ocat
i
on
and act
i
v
i
ty
.
T
he A
SOG
sets
out
operat
i
ona
l,
env
i
ronmenta
l
and
e
q
u
i
pment
performance
li
m
i
ts
for
the
D
P
i
nsta
ll
at
i
on
of
a
vesse
l i
n
re
l
at
i
on
to
each
l
ocat
i
on
and each
spec
i
f
i
c
act
i
v
i
ty
that
she
i
s
underta
ki
n
g
.
A
ll
DP
2 / 3
v
essels
mu
st ha
v
e an
AS
OG
f
or each location ‘t
yp
e’ an
d
each acti
v
it
y
‘t
yp
e’
.
Performance
li
m
i
ts
i
n
the
A
SOG
are
set
accord
i
n
g
to
the
l
eve
l
of
r
i
s
k. W
here
the
r
i
s
k
s
are
deemed
to
be
h
i
g
h
,
the performance
li
m
i
ts
are
set at
the
i
r
t
i
g
htest
. Li
m
i
ts may be
l
owered when
the
r
i
s
k
s
are
l
ower
.
Every
D
P
2
/
3
vesse
l
w
ill
have
to ma
i
nta
i
n
the
i
r A
SOG
updated
.
A
tubu
l
ar
format of
the A
SOG
to be
used
i
s
shown
i
n Anne
x
1
wh
il
e Anne
x 2
shows
an e
x
amp
l
e
for
g
u
i
dance
.
Cr
i
t
i
ca
li
ty of
the
s
i
tuat
i
on
i
s
rated
us
i
n
g
a
co
l
or
code
.
9
G
reen
D
P
S
tatus
GR
EE
N i
nd
i
cates
NOR
MA
L O
PE
R
A
TIONS. D
P
status
i
s
GR
EE
N
where
a
ll i
tems
i
n
the
GR
EE
N
co
l
umn
are met
, i
nd
i
cat
i
n
g
that
the
vesse
l i
s
ab
l
e
to ma
i
nta
i
n
pos
i
t
i
on
w
i
th
ade
q
uate
redundancy
i
n a
ll
cr
i
t
i
ca
l
systems
.
9
Adv
i
sory
D
P
status
(
opt
i
ona
l)
BL
U
E
i
s
an
A
D
V
ISORY
cond
i
t
i
on wh
i
ch
app
li
es
to
a
ll
operat
i
ons
or
s
i
tuat
i
ons where
the
vesse
l
H
A
S NO I
MME
DI
A
T
E
RISK
of
l
os
i
n
g
pos
i
t
i
on
,
but
someth
i
n
g
has
occurred
that
re
q
u
i
res
a
re
-
eva
l
uat
i
on
of
the
r
i
s
k.
Any
A
D
V
ISORY
status
should
i
mmed
i
ate
l
y
tr
i
gg
er
the
r
i
s
k
assessment
process
w
i
th
ade
q
uate
redundancy
i
n
a
ll
cr
i
t
i
ca
l
systems
.
9
Y
e
ll
ow
D
P
S
tatus
Y
E
LLOW i
s
a
W
A
RNING
cond
i
t
i
on
i
nd
i
cat
i
n
g
there
i
s
a h
i
g
h
r
i
s
k
of
the
vesse
l l
os
i
n
g
pos
i
t
i
on
should
another
fa
il
ure occur
. T
he
vesse
l i
s
st
ill
ma
i
nta
i
n
i
n
g
pos
i
t
i
on
a
l
thou
g
h
some
D
P
cr
i
t
i
ca
l
e
q
u
i
pment w
ill
have
l
ost
redundancy
. I
n
Y
E
LLOW D
P
status
,
operat
i
ons
,
the
vesse
l i
s
underta
ki
n
g
should
be
stopped
so
that
cont
i
n
g
ency
procedures
can
be
i
n
i
t
i
ated
,
such as
g
ett
i
n
g
ready
to
d
i
sconnect a
hose and mov
i
n
g
to a
safe
to
a
safe
l
ocat
i
on
.
9
R
ed
D
P
S
tatus
R
E
D i
nd
i
cates
a
severe
l
y de
g
raded
status
or
emer
g
ency
.
A
R
E
D
status
should
i
mmed
i
ate
l
y
tr
i
gg
er
a
d
i
sconnect
i
on w
i
th
a
ll D
P
re
li
ant
operat
i
ons
term
i
nated
s
i
nce
the
vesse
l
may be
l
os
i
n
g
pos
i
t
i
on
.
Master
must deve
l
op
s
i
mp
l
e
and
unamb
i
g
uous
act
i
v
i
ty
-
spec
i
f
i
c
procedures
to
a
ll
ow
determ
i
n
i
n
g
the
appropr
i
ate
D
P
a
l
ert
status
accord
i
n
g
to
the
(
contract
)
operat
i
ona
l
re
q
u
i
rements
and
the
D
P
system
status
and
capab
ili
ty
. T
hese
procedures
wh
i
ch
f
i
nd
the
i
r
or
i
g
i
ns
i
n
the
“
W
e
ll S
pec
i
f
i
c
O
perat
i
ons
G
u
i
de
li
nes
”
(WSOG)
and
“
Fi
e
l
d
S
pec
i
f
i
c
O
perat
i
n
g
G
u
i
de
li
nes
” (FSOG)
found
i
n
the
offshore
dr
illi
n
g
i
ndustry
,
shall
be
Vers
i
on
SF (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
.
U
ncontro
ll
ed
document when
pr
i
nted
.
Pa
g
e
2
7 of
44
Procedure prepared by
: BOS
H
ead
of
O
perat
i
ons
.
Approved
by
: BOS
H
ead
of
O
perat
i
ons
.
Va
li
dated by
: BOS
Qua
li
ty
R
epresentat
i
ve
.
473