Surface BOP’s Offshore Floaters - OTC Asia – Offshore Oil & Gas ...2014.otcasia.org/documents/14OTCA_PanelSession9GregNavarre.pdf · Surface BOP’s Offshore Floaters Tension

Surface BOP’s Offshore Floaters

Tension Leg Platforms

Spar’s

MODU’s Drillships & Semi’s

Semisub Producer’s/Driller’s

Gregory Navarre

OTCA 2014: Panel 9 • Surface BOPs on Floating Structures and Well Completions with Surface Trees • Gregory Navarre

Slide 2


Surface BOP’s History

TLP FPSO SPAR SEMISUBMERSIBLE

FP&DU

FIXED

JACKET

JACKUP &

COMPLIANT

TOWER


Slide 3


Guyed Towers, TLPs and Buoyant Towers

Guyed Tower

1975

Tension Leg Platform (TLP)

1976

BuoyantTowerTM

2010

Slide 3


Slide 4


Three Generations of Spars

The Classic Spar - 1987 The Truss Spar - 1996 The Cell Spar - 2004

Slide 4


Slide 5


Tension Leg Platform Surface BOP, Production Trees and Tensioner

Slide 5


Slide 6


Slide 6

TLP Seabed Wellhead Arrangement


• In a dry-tree TLP the production risers are arranged in a grid pattern in a (central) wellbay in the TLP deck.

• Riser tension is maintained through hydro-pneumatic tensioners. For a TLP several designs are available with typical strokes from 1 – 3 m.

Production

Tree

Tensioner

Unit

TLP Dry-Tree Riser System

Slide 7


Slide 8


-Confidential - AGR DDS – Do not reproduce without AGR DDS consent

Slide 8

Spar Surface BOP’s, and Trees – Push up tension system


Slide 9


Slide 9

A Simple Riser Load Cell System


Slide 10


Safe Dropped Objects Deck

Drilling Deck

Production Deck Production Manifold Deck

Rig Floor

18 ¾” 10K psi Drilling BOP

13 5/8” 15K psi Completion BOP

13 5/8” 20K psi Completion BOP optional

Slide 10

Spar BOP Configuration


Slide 11

Spar Pull Up Riser Tensioner With Production Tree


Surface BOP and Subsea Shut In Device: Seabed BOP

Slide 12


Slide 13


Keel Joint

Slide 13

Tapered Stress Joint

Air Can Tensioner

Termination Joint

Spar Riser System for Surface BOP


Slide 14


One-Column Format

Slide 14

Spar Riser joint


Slide 15


Slide 15

Soft Tank - Keel

Top of Steel Drilling and

Production

Spar

Riser Bay


Slide 16


FRANKLIN OFFSHORE INTERNATIONAL

Unocal Indonesia

66 wells

From 70 ft. to 3000 ft. water depth

Pre-laid Mooring

Chevron China

3 wells

60 ft. water depth

Taut mooring

Slide 16

Surface BOP on a MODU Semisubmersible


Slide 17


Unocal Indonesia

45 wells

Up to 6700 ft. water depth

Pre-laid Mooring

Santos Indonesia

10 wells

J-Up range

Pre-laid Mooring

Daewoo Myanmar

3 wells

Pre-laid Mooring

Annular

Preventer

BOP and

Wellhead

Support

Frame

13⅜"

Casing

Riser

Support

Frame

Guide

Slip

Joint

Outer

Barrel

Tensioner

Sheave

Slide 17



Slide 18


Shell Malaysia

2 wells

4500 ft. water depth

Pre-laid Mooring

Slide 18



Slide 19


Unocal Indonesia

20 wells


Pre-laid Taut Mooring

Slide 19



Slide 20


FRANKLIN OFFSHORE INTERNATIONAL

Shell Brazil & Egypt

4 wells


Dynamic Positioning

Subsea Isolation Device

Surface BOP Subsea Shut In Device

(SID)

Slide 20

Surface BOP & Subsea Shutoff Device (SID) on a MODU

Acknowledgements / Thank You / Questions

Ed Horton – Chairman Horton Wison Deepwater

SBM

GE Oil & Gas

My Panel Members

OTC Asia and Host Petronas and Malaysia

Slide 21


Slide 22


Slide 22

Run 19.5” ID drilling riser stress joint and drilling riser wellhead

connector thru drilling riser slot.

DRILLING AND COMPLETING WELLS


Slide 23


Slide 23

Drilling riser and rapid make up (RMU) connector.


Slide 24


Slide 24

10K drilling riser with 54” buoyancy material.


Slide 25


Slide 25

10K drilling riser, 21.25” OD X 1” wall.


Slide 26


Slide 26

Bottom of drilling riser keel joint.


Slide 27


Slide 27

Drilling riser ball and socket keel joint, 55” OD x 10’ long.


Slide 28


Slide 28

Drilling riser keel joint top.


Slide 29


Slide 29

Drilling riser pup joint.


Slide 30


Slide 30

Drilling riser: ball and socket keel joint entering buoyancy can guide.


Slide 31


Slide 31

Zero stroke installation jack, drilling riser hang off and split ring adaptor.


Slide 32


Slide 32

Drilling riser: ball and socket keel joint nested in the buoyancy can guide.


Slide 33


Slide 33

Drilling riser landed in 6,000’ WD.


Slide 34


Land 18 ¾” 10K psi riser adaptor and surface BOP.


Slide 35


Run 16” outer riser tieback connector for 30” mandrel 18 ¾”

15K wellhead.


Slide 36


Running 16”, 1.05” wall, 10K psi, outer T&C riser.


Slide 37


16” outer production riser: bottom of keel joint.


Slide 38


Production riser ball and socket keel joint: 56” OD.


Slide 39


Top of production riser keel joint to riser pup joint

x-over connection.


Slide 40


Top of production riser pup joint.


Slide 41


Production riser installation jack with load cell, riser hang off &

split ring adaptor.


Slide 42


Outer production riser latched.


Slide 43


16” Outer production riser latched, tensioned and secured

on load cell.


Slide 44


Production BOP, 13 5/8” 15k, landed and latched with RMU dog style

connector on the 16” outer riser with the 16 ¾” 10k profile. Drill to TD.


Slide 45


Rig up to run inner production riser.


Slide 46


Run inner production riser with internal tie back connector.


Slide 47


Inner production riser

mandrel and load

ring

Inner production riser

mandrel and load

ring landed

Inner production riser surface installation.


Slide 48


Run last joint of inner riser with inner production riser mandrel.


Slide 49


Inner production riser surface hang-off system.


Slide 50


Tubing head weight

~ 5,000 lbs. RLP threaded pin

connection

INSTALLATION SEQUENCE


Slide 51


Latch internal tieback connector, over pull riser and install load ring.

Slack off inner riser to land inside the 16” outer riser NT2-10 housing.


Slide 52


Land Inner production riser in NT2-10, cut inner riser and install

CB pack off.


Slide 53


Then install tubing head.


Slide 54


Latch BOP to run tubing string and land tubing hanger and

complete the well.


Slide 55


Complete the well. Run tubing string and land tubing hanger.


Slide 56


Suspend the well. Nipple down the BOP and prepare to install the tree.


Slide 57


Install the tree. Weight of 15,000 psi tree is about 40,000 lbs.


Slide 58


Tree installed. Weight of 15,000 psi tree is about 40,000 lbs.


Slide 59


Slide 59

Hull & MRBC relative motion

10 year winter storm Gulf of Mexico.


Slide 60


Slide 60

10 year winter storm (max operating and drilling condition)

The maximum relative motion in a 3 hour storm will be ± 0.6m.


Slide 61


Slide 61


mean position.


Slide 62


10 year winter storm (max operating and drilling condition) 0.5’ upstroke

of average wave (+1 standard deviation of relative stroke).

Slide 62


Slide 63


Slide 63


mean position.


Slide 64


Slide 64

10 year winter storm (max operating and drilling condition) downstroke of

average wave (-1 standard deviation of relative stroke).


Slide 65


Slide 65


mean position.


Slide 66


Slide 66

10 year winter storm (max operating and drilling condition) upstroke of

average wave (+1 standard deviation of relative stroke).


Slide 67



mean position.

Slide 67


Slide 68




Slide 68


Slide 69



mean position.

Slide 69


Slide 70




Slide 70


Slide 71



mean position.

Slide 71


Slide 72




Slide 72


Slide 73


Slide 73


mean position.


Slide 74


Slide 74




Slide 75


Slide 75


mean position.


Slide 76


Slide 76



Documents

Surface BOP’s Offshore Floaters - OTC Asia – Offshore Oil & Gas ...2014.otcasia.org/documents/14OTCA_PanelSession9GregNavarre.pdf · Surface BOP’s Offshore Floaters Tension