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

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1 Presentation JB AG JCN JR 1

2 Presentation JB AG JCN JR 2

3 RIG TYPES Land rigs in total (approx) 3200 Jack Up,... in total (approx) 485 units 300 * in drilling mode 130 for WD > 350 ft Floaters,... in 2012 total > 400 SS 240 DS 160 Land rig Barge Platform rig Tender rig Jack-Up Semi-sub. moored Semi-sub. DP mode Drillship DP-mode Presentation JB AG JCN JR 3

4 RIG TYPES Onshore/Land rigs Wheel/truck mounted Standard/conventional rig Type Drilling depth range (ft) Light ft Medium ft Heavy ft Ultra heavy ft Offshore / bottom supported Barges: 8 to 25 ft WD Special arctic Posted Submersible: 30 to 150 ft WD Jack-Up: 100 up to 500 ft WD Mat supported / Independent leg Platform Rig Self-contained (compact rig) Tender supported (tender rigs) Offshore / floaters Semi-submersible Conventional moored (up to 7650 ft WD) Dynamic positioning system (5000 to ft WD) Drillships Conventional moored Dynamic positioning system (5000 to ft WD) Presentation JB AG JCN JR 4

5 RIG SIZES: POWER AND CAPABILITIES - some figures (approx) Rig types derricks /mast drawworks total power drilling depths LR Light (/ truck) < lbs < 500 HP < ft (w/ 3 ½ DP) LR Medium duty < lbs < 900 HP < 3000 HP < ft (w/ 3 ½ DP) LR Heavy duty < lbs < 1500 HP < 4000 HP < ft (w/ 5in DP) LR Ultra H. duty < lbs < 3000 HP < 5000 HP < ft (w/ 5in DP) Offshore (modern units) 1.3 to 2 MMlbs 2000 to 6600 HP > HP ft Presentation JB AG JCN JR 5

6 Conventional land rig Presentation JB AG JCN JR 6

7 Conventional land rig Presentation JB AG JCN JR 7

8 Land rig in arctic zone Presentation JB AG JCN JR 8

9 Land rig on A-island Kazakhstan field land rig; winterized option Presentation JB AG JCN JR 9

10 Land rig in arctic zone Source / Illustrations: TOTAL Presentation JB AG JCN JR 11

11 Drilling and well operations on Kharyaga field (Russia) Source: TOTAL EP Russie Presentation JB AG JCN JR 12

12 Truck mounted land rig Presentation JB AG JCN JR 13

13 Drilling operations with heli-rig Presentation JB AG JCN JR 16

14 RIG TYPES Onshore/Land rigs Wheel/truck mounted Standard/conventional rig Type Drilling depth range (ft) Light ft Medium ft Heavy ft Ultra heavy ft Offshore / bottom supported Barges: 8 to 25 ft WD Special arctic Posted Submersible: 30 to 150 ft WD Jack-Up: 100 up to 500 ft WD Mat supported / Independent leg Platform Rig Self-contained (compact rig) Tender supported (tender rigs) Offshore / floaters Semi-submersible Conventional moored (up to 7650 ft WD) Dynamic positioning system (5000 to ft WD) Drillships Conventional moored Dynamic positioning system (5000 to ft WD) Presentation JB AG JCN JR 17

15 Inland water drill barge Source: IADC Drilling Contractor Axxis Drilling Co Presentation JB AG JCN JR 18

16 Drilling barge (in a swamp area) Presentation JB AG JCN JR 19

17 Drilling barge in a swamp area East Kalimantan Presentation JB AG JCN JR 21

18 Wellheads (in a swamp area) Source / Illustrations: TOTAL Presentation JB AG JCN JR 22

19 Drilling barge (for arctic conditions) Presentation JB AG JCN JR 23

20 Presentation JB AG JCN JR 24

21 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 Presentation JB AG JCN JR 25

22 Jack-UP (IC) Cantilever type Independent leg Jack-UP (MS) slotted type mat supported type Presentation JB AG JCN JR 26

23 Jack-Up operation on wellhead platform Jack-Up (drilling unit) Wellhead platform Animation Presentation JB AG JCN JR 27

24 Jack-Up (drilling unit) Wellhead platform seabed Presentation JB AG JCN JR 28

25 Presentation JB AG JCN JR 29

26 Characteristics of some big JU In Jack Up for WD > 350 ft Some characteristics JU Name Year WD / leg Total power HP VL elevated st Drawworks Drlg. Pattern ft x ft Pumps Nb. & psi BOP WP Diverter diameter inches ft HP psi Maersk Inspirer / x 66 4 x ,5 Maersk Innovator / x 66 4 x ,5 Rowan Gorilla VI / x 40 4 x Ensco / x 30 3 x ,5 Noble Scott Marks / x 30 3 x In Jack-Up for WD > 350 ft Presentation JB AG JCN JR 30

27 Maersk Innovator Maersk Inspiror Presentation JB AG JCN JR 31

28 Jack-Up operation on wellhead platform Presentation JB AG JCN JR 32

29 Presentation JB AG JCN JR 33

30 Typical (IC*) Jack-Up over a WHP * Independent leg / Cantilever Presentation JB AG JCN JR 34

31 Conventional Jack-Up ( stand alone operations) Jack-Up towed over short distances Jack-Up moved over long distances Presentation JB AG JCN JR 35

32 Additional offshore operations which can be performed with a JU Jack-Up Topside Jacket 36 Presentation JB AG JCN JR 36

33 compact rig installed on a WP Compact rig Wellhead platform Presentation JB AG JCN JR 37

34 Wellhead platform drilling (assisted by a conventional tender rig ) Hoisting, safety Rotary functions Derrick set Pumping, power functions Source/ Courtesy: Transocean Presentation JB AG JCN JR 38

35 Wellhead platform drilling (assisted by a conventional tender rig ) Presentation JB AG JCN JR 39

36 Wellhead drilling platform assisted by a new deep-water tender rig Presentation JB AG JCN JR 40

37 RIG TYPES Onshore/Land rigs Wheel/truck mounted Standard/conventional rig Type Drilling depth range (ft) Light ft Medium ft Heavy ft Ultra heavy ft Offshore / bottom supported Barges: 8 to 25 ft WD Special arctic Posted Submersible: 30 to 150 ft WD Jack-Up: 100 up to 500 ft WD Mat supported / Independent leg Platform Rig Self-contained (compact rig) Tender supported (tender rigs) Offshore / floaters Semi-submersible Conventional moored (up to 7650 ft WD) Dynamic positioning system (5000 to ft WD) Drillships Conventional moored Dynamic positioning system (5000 to ft WD) Presentation JB AG JCN JR 41

38 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 Presentation JB AG JCN JR 43

39 DW floaters: Relative heave motion response vs. Wave period Source: TOTAL Offshore Reference Book Presentation JB AG JCN JR 44

40 OFFSHORE ENVIRONMENT WITH. -- Action of winds, -- Action of waves, Drilling floating unit (semi-submersible) Telescopic joint Drilling riser -- Action of currents and, Kill & choke lines Guide Guide lines lines -- impact of water depth, -- impact of seabed (formation) wellhead TGB & PGB Subsea BOP s Subsea wellhead Presentation JB AG JCN JR 45

41 Tensioning devices Floater response to wind, wave Impact of waves Non-linear current profile Drilling riser (w/ buoyancy modules) Water Depth Flex-joint Subsea equipment seabed Presentation JB AG JCN JR 46

42 WELL CONSTRUCTION: the basics Rig move on location Running WH Running BOP and riser Drilling msl Semi-submersible Flow line Drillstring WD Drilling riser Sub sea BOP Mud line = Sea bed Sub sea wellhead Presentation JB AG JCN JR 47

43 Conventional semi-submersible. In operation. deballasted In transit: dry tow Presentation JB AG JCN JR 48

44 Semi-submersible Leiv-Eiriksson (in drilling conditions) Presentation JB AG JCN JR 49

45 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 Presentation JB AG JCN JR 50

46 DRILLSHIP * PACIFIC SANTA ANNA * Drilling Contractor: Pacific Drilling year built / delivered: 1Q 2012 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. Presentation JB AG JCN JR 51

47 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) Presentation JB AG JCN JR 52

48 DYNAMIC POSITIONING SYSTEM Presentation JB AG JCN JR 53

49 Drillship (ultra deep water) SAIPEM Drillship (ultra deep water) DEEPWATER DISCOVERY Some sizes : 228 m x 42 m x 12 m Total installed power kw dual activities Source / illustration: Transocean Presentation JB AG JCN JR 54

50 Rig SS «Polyarnaya Zvezda» Presentation JB AG JCN JR 55

51 SEMI-SUB. vs. DRILLSHIPS.... SS DS - variable loads transit/moving speed stability + + ANCHOR-MOORING vs DYPO.... CONV. MOORING DYPO - time for rig positionning - sensitive weather areas fuel consumption field development Presentation JB AG JCN JR 56

52 Driller s dog house Offshore new offshore unit Rig onshore Presentation JB AG JCN JR 57

53 Rig rental costs (approx.) Operational daily costs (approx.) Land rig 30 to 45 K$ / d $/d Drilling barge 45 to 100 K$ / d $/d Tender rig (conventional) 50 to 120 K$ / d $/d Jack-Up (300 ft) 100 to 250 K$ / d 170 to $/d Semi-submersible (5000 < WD < 7500 ft) 200 to 250 K$ / d 380 to $/d Drillships (5000 < WD < 7500 ft) K$ / d $/d ( 7500 < WD < ft) + / K$ /d $/d Figures vary with type of contract (short/long term), market conditions, geographical area... Presentation JB AG JCN JR 58

54 COST TO BUILD A NEW RIG (approx. in 2011 cost in million $) Presentation JB AG JCN JR 59

55 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. Presentation JB AG JCN JR 60