vetco riser .pdf
TRANSCRIPT
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ABB Vetco GrayABB Oil, Gas & Petrochemicals
Drilling Riser
Connects the subsea BOP to
rig equipment.
Provides conduit to run and
retrieve tools and equipment to
and from wellbore, and the means
to circulate fluids into and out
of the well below a closed BOP
(choke and kill lines)
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ABB Vetco GrayABB Oil, Gas & Petrochemicals
Drilling Riser Design
Riser Sizes based on the BOP size.
BOP Size Riser Size
13-5/8 16
16-3/4 18-5/818-3/4 21
20-3/4 24
21-1/4 24
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ABB Vetco GrayABB Oil, Gas & Petrochemicals
API Riser Coupling Class Tensile capacity in millions
of pounds
Class A .5
Class B 1
Class C 1.25
Class D 1.5
Class E 2
Class F 2.5
API RP 2R establishes riser coupling classes
based on the tensile capacity of the coupling.
These are;
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ABB Vetco GrayABB Oil, Gas & Petrochemicals
Individual riser joints
Each includes -
specialty end couplings, box and pin
choke and kill linesauxiliary high pressure lines
guides
optional bouyancy modules
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ABB Vetco GrayABB Oil, Gas & Petrochemicals
Stabbing the first riser joint onto
the LMRP
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ABB Vetco GrayABB Oil, Gas & Petrochemicals
MR-6E Riser coupling
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ABB Vetco GrayABB Oil, Gas & Petrochemicals
Actuating screw boss,actuating screw, and spring
loaded locking sleeve
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ABB Vetco GrayABB Oil, Gas & Petrochemicals
Locking
Dog
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ABB Vetco GrayABB Oil, Gas & Petrochemicals
Guide
plates
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ABB Vetco GrayABB Oil, Gas & Petrochemicals
Choke and killline clamps
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ABB Vetco GrayABB Oil, Gas & Petrochemicals
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ABB Vetco GrayABB Oil, Gas & Petrochemicals
Type HMF riser handling subs
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ABB Vetco GrayABB Oil, Gas & Petrochemicals
Riser handling spider
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ABB Vetco GrayABB Oil, Gas & Petrochemicals
Choke and kill line
male stab
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ABB Vetco GrayABB Oil, Gas & Petrochemicals
Choke and kill line
female stab
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ABB Vetco GrayABB Oil, Gas & Petrochemicals
Type HMF Riser Coupling
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ABB Vetco GrayABB Oil, Gas & Petrochemicals
Choke & Kill Line Test Caps
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ABB Vetco GrayABB Oil, Gas & Petrochemicals
HMF Lifting Tool
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ABB Vetco GrayABB Oil, Gas & Petrochemicals
Riser Autofill Valve
Prevents the riser from collapsing under
external pressure in the event of sudden
mud loss.
An outer sliding sleeve opens
automatically, allowing sea water to fill
the riser, when the internal pressure ofthe valve falls to 150 p.s.i. less than the
external pressure.
The valve should be run at least 325
below the surface.
Override system permits hydraulic
actuation of the valve from the surface.
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ABB Vetco GrayABB Oil, Gas & Petrochemicals
Emergency Riser Disconnect
The emergency riser disconnect can be
run anywhere in the riser above the LMRP
to provide a secondary means to
disconnect the riser from the BOP.
The pul to separate the emergency riser
disconnect is always axial to the
centerline of the riser. Therefore no forces
bind the coupling to keep it from
separating, regardless of how far the
vessel is off the hole.
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ABB Vetco GrayABB Oil, Gas & Petrochemicals
Instrumented Riser Joint
The Instrumented Riser Joint provides ameans for monitoring a number of
parameters
associated with the ue of deep water riser
systems.
These parameters are measured by sensors
incorporated into a riser pup joint multi-plexed,
by a subsurface electronics assembly, and
transmitted to the surface using a small
diameter
armored logging cable. Data is converted at
thesurface to an output signal for readout and/or
storage.
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ABB Vetco GrayABB Oil, Gas & Petrochemicals
Telescopic Joint(Slip Joint)
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ABB Vetco GrayABB Oil, Gas & Petrochemicals
Inner Barrel
Packer housing
Riser Support Ring
choke and kill line terminals
Outer Barrel
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ABB Vetco GrayABB Oil, Gas & Petrochemicals
Type SDL Riser Support Ring
The Type SDL Riser Tensioner Ring saves
time because the riser tensioner cables are
never disconnected.
When the riser is pulled the tensioner ring willbe carried up to the bottom of the diverter
housing. Hydraulic latches release the ring
from the slip joint and permit it to be locked
onto the diverter housing using another set
of hydraulic latch dogs. The rest of the riser
is retrieved through its center.
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ABB Vetco GrayABB Oil, Gas & Petrochemicals
Type SDL Riser Support Ring
Hydraulically actuated
riser support dogs
Diverter stow dogs Tensioner ring pad eyes
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ABB Vetco GrayABB Oil, Gas & Petrochemicals
Type KT Riser Support Ring
Like the Type SDL Riser Support Ring
the type KT Riser Support ring need
not be disconnected from the riser
tensioner cables. Additionally the choke
and kill line hoses neen not bedisconnected.
The KT ring locks onto the diverter housing
for storage when not in use.
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ABB Vetco GrayABB Oil, Gas & Petrochemicals
Type KT Riser Support Ring
Tensioner ring pad eyes
Lock down/orientation dogsAuxiliary line termination
Fluid bearing
with carbon/teflon thrust bearing
Auxiliary line pin
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ABB Vetco GrayABB Oil, Gas & Petrochemicals
Diverter System
Type KFDS
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ABB Vetco GrayABB Oil, Gas & Petrochemicals
Diverter HousingDiverter Insert
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ABB Vetco GrayABB Oil, Gas & Petrochemicals
Diverter insert installed
on riser at rotary table
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ABB Vetco GrayABB Oil, Gas & Petrochemicals
CSO Diverter
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ABB Vetco GrayABB Oil, Gas & Petrochemicals
Single Ball Flex Joint
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ABB Vetco GrayABB Oil, Gas & Petrochemicals
Ball Joint in LMRP
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ABB Vetco GrayABB Oil, Gas & Petrochemicals
Diverter Ball Joint
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ABB Vetco GrayABB Oil, Gas & Petrochemicals
Single Flex Joint
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ABB Vetco GrayABB Oil, Gas & Petrochemicals
Single Flex Joint in LMRP
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ABB Vetco GrayABB Oil, Gas & Petrochemicals
Single Flex Joint
uCapable of 10odeflection from
vertical
uResilient bearing elements are
elastomer and steel plate
laminate
uSeal and bearing elements
uunder shear and compression
loads as flex joint is in tension