Deepwater Gulf of Mexico 2004: America's Expanding ... - OCS BBS

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Figure 30.
The Discoverer Deep Seas, a Class 1A1, double-hulled, dynamically positioned
drillship (photo courtesy of Transocean). ............................................................................. 49
Figure 31. Average number of rigs operating in the deepwater GOM. (White bars are estimates.)...... 50
Figure 32.
Approximate number of deepwater rigs (GOM and worldwide) subdivided
according to their maximum water-depth capabilities. Inset shows the
number of deepwater rigs in various locations. .................................................................... 50
Figure 33. All deepwater wells drilled in the Gulf of Mexico, subdivided by water depth. .................. 51
Figure 34. All deepwater exploratory wells drilled in the Gulf of Mexico by water depth. .................. 52
Figure 35. Deepwater development wells drilled in the Gulf of Mexico, divided by water depth. ....... 53
Figure 36. Deepwater exploratory wells drilled in the Gulf of Mexico. ................................................ 54
Figure 37. Deepwater development wells drilled in the Gulf of Mexico............................................... 56
Figure 38. Deepwater EP's, DOCD's, and DWOP's received in the Gulf of Mexico since 1992. ......... 59
Figure 39. Maximum wellbore true vertical depth (TVD) drilled in the total
Gulf of Mexico each year. .................................................................................................... 60
Figure 40. Maximum water depth drilled each year. ............................................................................. 61
Figure 41. Deepwater development systems.......................................................................................... 62
Figure 42. Three different development systems (left to right): a SeaStar TLP installed at
ChevronTexaco’s Typhoon field, a spar installed at ChevronTexaco’s Genesis
Field, and a semisubmersible at Shell/BP’s Na Kika Field (images courtesy of
ChevronTexaco, Shell International Exploration and Production Inc., and BP). ................. 66
Figure 43. Progression of spar deepwater development systems
(image courtesy of Technip-Coflexip).................................................................................. 68
Figure 44. GOM deepwater production facilities installed each year
(including plans through 2006). Inset shows production systems
for currently producing fields (including subsea systems). .................................................. 69
Figure 45. Crosby Project (MC 899) subsea equipment layout
(image courtesy of Shell International Exploration and Production Inc.). ........................... 71
Figure 46. Number of shallow- and deepwater subsea completions each year...................................... 72
Figure 47. Maximum water depth of subsea completions each year. .................................................... 72
Figure 48. Water depth of subsea completions. ..................................................................................... 73
Figure 49. Length of subsea tiebacks..................................................................................................... 73
Figure 50a. Approved deepwater oil and gas pipelines less than or equal to 12 inches in diameter. ...... 74
Figure 50b. Approved deepwater oil and gas pipelines greater than 12 inches in diameter. ................... 74
Figure 51. Proved reserve additions....................................................................................................... 76
Figure 52. Proved and unproved reserve additions. ............................................................................... 77
Figure 53. Average field size using proved and unproved reserves....................................................... 78
Figure 54. Number of deepwater field discoveries and resulting number of producing fields. ............. 79
Figure 55. Number of deepwater field discoveries and new hydrocarbons found
(MMS reserves, MMS resources, and industry-announced discoveries).............................. 80
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