Eileen west end development, Prudhoe Bay field, Alaska
- BP Exploration, Anchorage, AK (USA)
The western periphery of Prudhoe Bay field is made of small faulted structures referred to as the Eileen West End area. Development plans for Eileen West End consist of drilling approximately 90 production wells on 80-ac spacing, two nonconventional (> 85{degree}) gas injectors, and one to two conventional gas injectors from two gravel pads (W and Z pads). The confirmation sequence of 20 wells was prioritized to provide information about the structure, fluid contacts, reservoir rock quality, and shale extent in the areas of the nonconventional gas injectors and to maximize, broad initial offtake. Drilling began with two rigs in February 1988, and production started up from Eileen West End in June 1988. In October 1989, 46 wells produced 50,000 BOPD. Peak capacity of 60,000 BOPD is expected by May 1990. Gas cap gas injection was initiated in the West End along with production. Two nonconventional gas injectors currently inject 90 MMCFD. A final injection rate for the West End is targeted at 130 MMCFD. Initiating injection concurrently with production will forestall additional pressure depletion from offtake in the Main field of Prudhoe Bay. Integration of geologic reservoir description and engineering data is crucial to optimize, reservoir development. Current effort include mud logging, sidewall core sampling, formation pressure testing, and fluid contact monitoring with open-hole and cased-hole logs. These data are interpreted to identify areas of gas or water influx and gas breakthrough to define the extent of permeability barriers, to evaluate pressure support requirements, and to effectively plan the remaining conventional and nonconventional producers.
- OSTI ID:
- 6858547
- Report Number(s):
- CONF-900605--
- Journal Information:
- AAPG Bulletin (American Association of Petroleum Geologists); (USA), Journal Name: AAPG Bulletin (American Association of Petroleum Geologists); (USA) Vol. 74:5; ISSN AABUD; ISSN 0149-1423
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
020200* -- Petroleum-- Reserves
Geology
& Exploration
020300 -- Petroleum-- Drilling & Production
58 GEOSCIENCES
580000 -- Geosciences
ALASKA
ARCTIC OCEAN
BAYS
BEAUFORT SEA
ENHANCED RECOVERY
EXPLOITATION
FEDERAL REGION X
FLUID INJECTION
GAS INJECTION
GEOLOGIC DEPOSITS
GEOLOGIC TRAPS
GEOLOGY
MINERAL RESOURCES
NORTH AMERICA
OIL FIELDS
OIL WELLS
PERMEABILITY
PETROLEUM DEPOSITS
PRUDHOE BAY
RECOVERY
RESERVOIR PRESSURE
RESERVOIR ROCK
RESOURCES
SEAS
SURFACE WATERS
USA
WELLS