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North Slope

 

North Slop Oil & Gas


PRA has extensive North Slope experience. Our North Slope clients include the Alaska Division of Oil and Gas, BP, and ConocoPhillips. Projects completed in this area are numerous and diverse, and include:

North Slope Facility Sharing Study
- Alaska Division of Oil and Gas
The overall goal of this study is to identify the existing facilities and their potential, the needs and desires of independent oil and gas companies and North Slope operators, and to lay the groundwork for designing a template for successful facilities sharing across the North Slope. Objectives include:

  • Define existing facilities and design capacity for Alpine, Badami, Endicott, Kuparuk, Milne Point, Northstar, Point McIntyre, Lisburne, and Prudhoe Bay fields.
  • Identify and match constraints and excess capacity for Alpine, Badami, Endicott, Kuparuk, Milne Point, Northstar, Point McIntyre, Lisburne, and Prudhoe Bay fields.
  • Compile information on the North Slope operators perspective on facility sharing.
  • Assess facility sharing and back-out costs, include a negotiation strategy, and review facility sharing agreements in other places.
  • Compile information on the perspective on facility sharing of independent oil companies currently active on the North Slope.
  • Preliminary results from this study were discussed in a meeting in Juneau between the Governor of Alaska and independent oil companies.

Preliminary results from this study were discussed in a meeting in Juneau between the Governor of Alaska and independent oil companies.


Prudhoe Bay and Point Thomson Reservoir Study
- Alaska Division of Oil and Gas

A multidisciplinary PRA team, in cooperation with Alaska Division of Oil and Gas staff completed a reservoir study of the Prudhoe Bay and Point Thomson fields. The objective of this study was to review the effects of a major gas sale on ultimate recovery of oil and gas, and annual production of hydrocarbons from Prudhoe Bay Unit and Point Thomson Unit.


Prudhoe Bay Field
BP and ConocoPhillips (formerly ARCO)

  • A reservoir stratigraphic study involving the creation of a new layering scheme and sequence statigraphic framework for the Prudhoe Bay Unit used in reservoir modeling
  • A study evaluating the effect of faults on reservoir performance and development
  • Well site work and supervision
  • Water/gas injection management and operations
  • Operations engineering (optimization of oil production, well work, lifting cost analysis, etc.)
  • A core description project involving the identification of the location and thickness of all shales in cored Prudhoe wells used for a core-calibrated, log predictor for shale
  • Exploration prospects generated and evaluated

Kuparuk Field
ConocoPhillips (formerly ARCO)

  • Full field seismic interpretation and mapping
  • Infill and sidetrack well planning
  • Evaluation of drilling results
  • Planning and implementation of coil tubing drill strategies
  • Well site work and supervision
  • Training for seismic interpretation and mapping

NPRA (National Petroleum Reserve in Alaska)

  • Evaluation of the petroleum potential of an area in the NPRA
  • Management of a joint venture project involving seismic processing and reprocessing management and interpretation of data

Alpine Development - ConocoPhillips (formerly ARCO)

  • Provide wellsite geology support for the Alpine Field
  • Wellsite responsibilities include picking casing points, geosteering horizontal wells, and monitoring electric log quality
  • PRA is involved in helping real-time data entry into the geologic model for Alpine Field
  • Facilities management and planning

Endicott Field - BP

  • PRA has provided development well planning support to BP Exploration during the development of the Endicott Field.
  • Working in a team of engineers and geoscientists new wells and sidetrack candidates were optimized using an integrated approach.

Exploration Drilling - BP

PRA provided wellsite geologic support for BP Exploration during the Sourdough prospect drilling. Responsibilities included:

  • Mudlogging oversite
  • Cuttings descriptions
  • Electric log quality control
  • Daily reporting
  • General wellsite representation

Barrow Gas Fields

  • 5-well drilling program to meet Barrow’s current and future demand for gas:
      1. 2 gas wells at Savik (East Field) - completed
      2. 3 gas wells at Walakpa Field - completed
  • Upgrade pipelines and facilities to handle higher flow rates
  • Plug and abandon derelict wells
  • Create system redundancy to protect against deliverability loss
  • PRA responsibilities include: Start-to-finish project planning, execution, and oversight of the drilling of 5 wells and installation of wellhead facilities, including 30-mile ice road construction

  • Coordination with thirteen local service providers/organizations