Presentation JB – AG – JCN – JR 1 NOT TO COPY -- NO DISSEMINATE WITHOUT WRITTEN AGREEMENT

Presentation JB – AG – JCN – JR 2 NOT TO COPY -- NO DISSEMINATE WITHOUT WRITTEN AGREEMENT

RIG SIZING AND SELECTION

Presentation JB – AG – JCN – JR 3 NOT TO COPY -- NO DISSEMINATE WITHOUT WRITTEN AGREEMENT

Land rig Barge Platform

rig

Tender

rig Jack-Up

Semi-sub.

DP mode Drillship

DP-mode

Semi-sub.

moored

RIG TYPES

RIG SIZING AND SELECTION

Jack Up, .... in 2012 ....

total (approx) 485 units

300 * in drilling mode

130 for WD > 350 ft

Floaters, .... in 2012

total > 400

SS 240 DS 160

Land rigs in 2012 ....

total (approx) 3200

Presentation JB – AG – JCN – JR 4 NOT TO COPY -- NO DISSEMINATE WITHOUT WRITTEN AGREEMENT

RIG TYPES

Offshore / floaters

Barges: 8 to 25 ft WD

Platform Rig

Submersible: 30 to 150 ft WD

Offshore / bottom supported

Wheel/truck mounted

Onshore/Land rigs

Standard/conventional rig Posted

Special arctic

Self-contained (compact rig)

Semi-submersible

Drillships

Tender supported (tender rigs)

Type Drilling depth range (ft)

Light 4000 - 8000 ft

Medium 8000 - 12000 ft

Heavy 12000 - 16000 ft

Ultra – heavy 18000 - 25000 ft

Conventional moored

Conventional moored

(up to 7650 ft WD)

Dynamic positioning system

(5000 to 12 000 ft WD)

Dynamic positioning system

(5000 to 12 000 ft WD)

Jack-Up: 100 up to 500 ft WD

Mat supported / Independent leg

RIG SIZING AND SELECTION

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RIG SIZES: POWER AND CAPABILITIES - some figures (approx)

Rig types derricks /mast drawworks total power drilling depths

LR Light (/ truck) < 300 000 lbs < 500 HP < 8 000 ft (w/ 3 ½ DP)

LR Medium duty < 600 000 lbs < 900 HP < 3000 HP < 12 000 ft (w/ 3 ½ DP)

LR Heavy duty < 1 000 000 lbs < 1500 HP < 4000 HP < 16 000 ft (w/ 5in DP)

LR Ultra H. duty < 1 300 000 lbs < 3000 HP < 5000 HP < 25 000 ft (w/ 5in DP)

Offshore (modern units) 1.3 to 2 MMlbs 2000 to 6600 HP > 8 000 HP 25 000 ft

RIG SIZING AND SELECTION

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Conventional land rig

RIG SIZING AND SELECTION

Presentation JB – AG – JCN – JR 7 NOT TO COPY -- NO DISSEMINATE WITHOUT WRITTEN AGREEMENT

Conventional land rig

RIG SIZING AND SELECTION

Presentation JB – AG – JCN – JR 8 NOT TO COPY -- NO DISSEMINATE WITHOUT WRITTEN AGREEMENT

Land rig in arctic zone

RIG SIZING AND SELECTION

Presentation JB – AG – JCN – JR 9 NOT TO COPY -- NO DISSEMINATE WITHOUT WRITTEN AGREEMENT

Land rig on “A-island”

Kazakhstan field

land rig; “winterized” option

RIG SIZING AND SELECTION

Presentation JB – AG – JCN – JR 11 NOT TO COPY -- NO DISSEMINATE WITHOUT WRITTEN AGREEMENT

Land rig in arctic

zone

Source / Illustrations: TOTAL

RIG SIZING AND SELECTION

Presentation JB – AG – JCN – JR 12 NOT TO COPY -- NO DISSEMINATE WITHOUT WRITTEN AGREEMENT

Drilling and well operations

on Kharyaga field (Russia)

Source: TOTAL EP Russie

RIG SIZING AND SELECTION

Presentation JB – AG – JCN – JR 13 NOT TO COPY -- NO DISSEMINATE WITHOUT WRITTEN AGREEMENT

Truck mounted

land rig

RIG SIZING AND SELECTION

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Drilling operations with heli-rig

RIG SIZING AND SELECTION

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RIG TYPES

Offshore / floaters

Barges: 8 to 25 ft WD

Platform Rig

Submersible: 30 to 150 ft WD

Offshore / bottom supported

Wheel/truck mounted

Onshore/Land rigs

Standard/conventional rig Posted

Special arctic

Self-contained (compact rig)

Semi-submersible

Drillships

Tender supported (tender rigs)

Type Drilling depth range (ft)

Light 4000 - 8000 ft

Medium 8000 - 12000 ft

Heavy 12000 - 16000 ft

Ultra – heavy 18000 - 25000 ft

Conventional moored

Conventional moored

(up to 7650 ft WD)

Dynamic positioning system

(5000 to 12 000 ft WD)

Dynamic positioning system

(5000 to 12 000 ft WD)

Jack-Up: 100 up to 500 ft WD

Mat supported / Independent leg

RIG SIZING AND SELECTION

Presentation JB – AG – JCN – JR 18 NOT TO COPY -- NO DISSEMINATE WITHOUT WRITTEN AGREEMENT

Source: IADC – Drilling Contractor – “Axxis Drilling Co”

Inland water drill barge

RIG SIZING AND SELECTION

Presentation JB – AG – JCN – JR 19 NOT TO COPY -- NO DISSEMINATE WITHOUT WRITTEN AGREEMENT

Drilling barge

(in a swamp area)

RIG SIZING AND SELECTION

Presentation JB – AG – JCN – JR 21 NOT TO COPY -- NO DISSEMINATE WITHOUT WRITTEN AGREEMENT

Drilling barge in a swamp area

East Kalimantan

RIG SIZING AND SELECTION

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Wellheads

(in a swamp area)

Source / Illustrations: TOTAL

RIG SIZING AND SELECTION

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Drilling barge

(for arctic conditions)

RIG SIZING AND SELECTION

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8.1.2000

RIG SIZING AND SELECTION

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For operations with a Jack-Up ….

Some points to verify,

- spud cans, leg length vs seabed survey

- leg length vs water depth, height of wellhead platform

- cantilever extensions vs well bay on wellhead platform

- preloading procedures vs seabed survey, rig operating manual

RIG SIZING AND SELECTION

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Jack-UP (MS)

slotted type

mat supported type

Jack-UP (IC)

Cantilever type

Independent leg

RIG SIZING AND SELECTION

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Wellhead platform

Jack-Up (drilling unit)

Jack-Up operation on

wellhead platform

Animation

RIG SIZING AND SELECTION

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Wellhead

platform

Jack-Up (drilling unit)

seabed

RIG SIZING AND SELECTION

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RIG SIZING AND SELECTION

Presentation JB – AG – JCN – JR 30 NOT TO COPY -- NO DISSEMINATE WITHOUT WRITTEN AGREEMENT

In 2011 … 129 Jack Up for WD > 350 ft Some characteristics …

JU Name Year

WD / leg

ft

Total

power

HP

VL

elevated

st

Drawworks

HP

Drlg.

Pattern

ft x ft

Pumps

Nb. &

psi

BOP WP

psi

Diverter

diameter

inches

Maersk Inspirer 2001 492 / 673 14 420 10 000 4 600 86 x 66 4 x 7500 15 000 49,5

Maersk Innovator 2003 492 / 673 14 420 10 000 4 600 86 x 66 4 x 7500 15 000 49,5

Rowan Gorilla VI 2000 450 / 607 16 975 12 462 5000 100 x 40 4 x 7500 15 000 28

Ensco 109 2008 400 / 486 12 250 7 980 4 600 70 x 30 3 x 7500 15 000 49,5

Noble Scott Marks 2009 400 / 548 17 750 5 000 4 600 75 x 30 3 x 7500 15 000

Characteristics of some “big” JU

In 2011 …. 129 Jack-Up for WD > 350 ft

RIG SIZING AND SELECTION

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“Maersk Innovator”

“Maersk Inspiror”

RIG SIZING AND SELECTION

Presentation JB – AG – JCN – JR 32 NOT TO COPY -- NO DISSEMINATE WITHOUT WRITTEN AGREEMENT

Jack-Up operation on

wellhead platform

RIG SIZING AND SELECTION

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RIG SIZING AND SELECTION

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Typical (IC*) Jack-Up

over a WHP

* Independent leg / Cantilever

RIG SIZING AND SELECTION

Presentation JB – AG – JCN – JR 35 NOT TO COPY -- NO DISSEMINATE WITHOUT WRITTEN AGREEMENT

Conventional Jack-Up

( stand alone operations)

Jack-Up moved over long distances

RIG SIZING AND SELECTION

Jack-Up towed over short distances

Presentation JB – AG – JCN – JR 36 NOT TO COPY -- NO DISSEMINATE WITHOUT WRITTEN AGREEMENT

36

Additional offshore operations

which can be performed with a

JU

RIG SIZING AND SELECTION

Jack-Up

Jacket

Topside

Presentation JB – AG – JCN – JR 37 NOT TO COPY -- NO DISSEMINATE WITHOUT WRITTEN AGREEMENT

“compact rig”

installed on a WP

RIG SIZING AND SELECTION

Wellhead

platform

Compact rig

Presentation JB – AG – JCN – JR 38 NOT TO COPY -- NO DISSEMINATE WITHOUT WRITTEN AGREEMENT

Wellhead platform drilling (assisted by a conventional “tender rig”)

Source/ Courtesy: Transocean

Hoisting, safety

Rotary functions

Pumping, power

functions

RIG SIZING AND SELECTION

“Derrick set”

Presentation JB – AG – JCN – JR 39 NOT TO COPY -- NO DISSEMINATE WITHOUT WRITTEN AGREEMENT

Wellhead platform drilling (assisted by a conventional “tender rig”)

RIG SIZING AND SELECTION

Presentation JB – AG – JCN – JR 40 NOT TO COPY -- NO DISSEMINATE WITHOUT WRITTEN AGREEMENT

Wellhead drilling platform

assisted by a “new deep-water

tender rig”

RIG SIZING AND SELECTION

Presentation JB – AG – JCN – JR 41 NOT TO COPY -- NO DISSEMINATE WITHOUT WRITTEN AGREEMENT

RIG TYPES

Offshore / floaters

Barges: 8 to 25 ft WD

Platform Rig

Submersible: 30 to 150 ft WD

Offshore / bottom supported

Wheel/truck mounted

Onshore/Land rigs

Standard/conventional rig Posted

Special arctic

Self-contained (compact rig)

Semi-submersible

Drillships

Tender supported (tender rigs)

Type Drilling depth range (ft)

Light 4000 - 8000 ft

Medium 8000 - 12000 ft

Heavy 12000 - 16000 ft

Ultra – heavy 18000 - 25000 ft

Conventional moored

Conventional moored

(up to 7650 ft WD)

Dynamic positioning system

(5000 to 12 000 ft WD)

Dynamic positioning system

(5000 to 12 000 ft WD)

Jack-Up: 100 up to 500 ft WD

Mat supported / Independent leg

RIG SIZING AND SELECTION

Presentation JB – AG – JCN – JR 43 NOT TO COPY -- NO DISSEMINATE WITHOUT WRITTEN AGREEMENT

For operations with a floater

Some points to verify,

- anchors type vs seabed survey

- riser design, floating elements vs water depth

- booster line vs water depth

- heave response curves vs meteo-oceano survey

RIG SIZING AND SELECTION

Presentation JB – AG – JCN – JR 44 NOT TO COPY -- NO DISSEMINATE WITHOUT WRITTEN AGREEMENT

DW floaters: Relative heave motion response vs. Wave period

Source: TOTAL Offshore Reference Book

RIG SIZING AND SELECTION

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Kill & choke

lines Guide lines

Subsea BOP’s wellhead

TGB & PGB Subsea wellhead

Guide lines

Telescopic joint

Drilling riser

Drilling floating unit

(semi-submersible)

OFFSHORE ENVIRONMENT WITH …. -- Action of winds, -- Action of waves, -- Action of currents and, -- impact of water depth, -- impact of seabed (formation)

RIG SIZING AND SELECTION

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Tensioning

devices

Impact of

waves

Drilling riser

(w/ buoyancy modules)

Water

Depth

seabed

Subsea

equipment

Flex-joint

Non-linear current

profile

Floater response to

wind, wave

RIG SIZING AND SELECTION

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msl

WD

Sub sea wellhead Mud line = Sea bed

Sub sea BOP

Drilling riser

Drillstring

Semi-submersible Rig move on location

Running WH

Running BOP and riser

Drilling

WELL CONSTRUCTION: the basics

RIG SIZING AND SELECTION

Flow line

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Conventional semi-submersible

In transit: “dry tow”

…. deballasted

…. In operation

RIG SIZING AND SELECTION

Presentation JB – AG – JCN – JR 49 NOT TO COPY -- NO DISSEMINATE WITHOUT WRITTEN AGREEMENT

Semi-submersible

“Leiv-Eiriksson”

(in drilling

conditions)

RIG SIZING AND SELECTION

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SEMI SUBMERSIBLE “Aker Spitsbergen”

The new Aker H-6e is the world's

biggest and most advanced drilling

semi. It have features that make them

particularly well suited for drilling

under extreme conditions

RIG SIZING AND SELECTION

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The drillship owned by Pacific Drilling is thought to be the first of its kind in the world equipped to perform dual gradient drilling (DGD). DGD uses a subsea mud pump (Chevron design) to withdraw the drilling mud from the well at the seabed and return it through a separate line to the drillship. It is equipped with a DGD riser , a mud lift pump handling system, six mud pumps – three for drilling fluid and three for seawater – extensive fluid management system enhancements .

DRILLSHIP * “PACIFIC SANTA ANNA”

* Drilling Contractor: Pacific Drilling

year built / delivered: 1Q 2012

RIG SIZING AND SELECTION

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DYNAMIC POSITIONING SYSTEM (DYPO)

A computer controlled system to automatically maintain a ship’s

position and heading by using its own thrusters (propellers).

(Thruster system: gives a thrust to counter the environment condition, so

that the drillship or the semi-sub. can be in desired position)

RIG SIZING AND SELECTION

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DYNAMIC

POSITIONING

SYSTEM

RIG SIZING AND SELECTION

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Drillship (ultra deep water) “SAIPEM 12000

Drillship (ultra deep water) “DEEPWATER

DISCOVERY”

Source / illustration: Transocean

RIG SIZING AND SELECTION

Some sizes : 228 m x 42 m x 12 m

Total installed power 48 000 kW

“dual activities”

Presentation JB – AG – JCN – JR 55 NOT TO COPY -- NO DISSEMINATE WITHOUT WRITTEN AGREEMENT

Rig SS « Polyarnaya Zvezda »

RIG SIZING AND SELECTION

Presentation JB – AG – JCN – JR 56 NOT TO COPY -- NO DISSEMINATE WITHOUT WRITTEN AGREEMENT

RIG SIZING AND SELECTION

SEMI-SUB. vs. DRILLSHIPS . . . .

- variable loads + + +

- transit/moving speed + + +

- stability + +

ANCHOR-MOORING vs DYPO . . . .

- time for rig positionning - sensitive weather areas + + +

- fuel consumption + + +

- field development + + +

DS SS

CONV. MOORING DYPO

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Driller’s “dog house”

Rig onshore

Offshore new offshore unit

RIG SIZING AND SELECTION

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RIG SIZING AND SELECTION

Rig rental costs Operational daily costs

(approx.) (approx.)

Land rig 30 to 45 K$ / d 65 000 $/d

Drilling barge 45 to 100 K$ / d 130 000 $/d

Tender rig (conventional) 50 to 120 K$ / d 160 000 $/d

Jack-Up (300 ft) 100 to 250 K$ / d 170 to 425 000 $/d

Semi-submersible

(5000 < WD < 7500 ft) 200 to 250 K$ / d 380 to 475 000 $/d

Drillships

(5000 < WD < 7500 ft) 300 + K$ / d 570 000 $/d

( 7500 < WD < 10 000 ft) + / - 600 K$ /d 1 200 000 $/d

Figures vary with type of contract (short/long term), market conditions, geographical area....

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COST TO BUILD A NEW RIG (approx. in 2011 cost in million $)

RIG SIZING AND SELECTION

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Slides were prepared for presentation and information to Students of Schools and Universities only.

References

Slides presented were prepared with illustrations from the following referenced documents:

- API Standards and Recommended Practices,

- Neal J. Adams, Drilling Engineering , PennWell Books, Tulsa, Oklahoma, 1985,

- (Halliburton) - Petroleum Well Construction – J Willey & Sons

- Miscellaneous books from “Chambre Syndicale de la Recherche et de la Production du Pétrole et du gaz naturel”

- IFP Drilling data handbook

- Miscellaneous documentation from TOTAL Drilling Division

- Halliburton Completion Services

- Miscellaneous books from IFP

- Leading Edge Advantage Ltd (Under Balance Drilling).

- Miscellaneous documentation from web-sites: O&GJ, World Oil, SPE

- Transocean, Saipem, Pride Drilling Contractors

- Baker Hughes, Schlumberger, Weatherford, Wild Well Control Service Companies

- Cameron, Hydril, Companies.