Alaska's Oil & Gas Consulting Company

recent pra projects

 

North Slope

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.

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

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Interior Basins

PRA personnel have assisted several Alaska regional native corporations in evaluating oil and gas potential in the Alaskan interior basin (Doyon, Calista). Projects include:

Nenana
Evaluation of the economic feasibility of oil and gas development. This ongoing project involves:

  • A review of geologic field studies
  • Well and seismic data
  • Interpretations of this data
  • Production of surface and subsurface maps and cross sections
  • Summarize risk and potential of petroleum development

Yukon Flats
Evaluation of the economic feasibility of oil and gas development. This ongoing project involves:

  • A review of geologic field studies
  • Full interpretation of USGS reprocessed seismic data
  • Production of time and depth structure, and isopach maps
  • Summarize risk and potential of petroleum development
  • Expelled hydrocarbon play types
  • Tract definition, evaluation, and ranking

Bethel
Evaluation of the economic feasibility of oil and gas development. This ongoing project involves:

  • A review of geologic field studies
  • Well and seismic data
  • Interpretations of this data
  • Production of surface and subsurface maps cross sections
  • Summarize risk and potential of petroleum development

Healy Area
PRA organized and led field trips to examine outcrop examples of different types of fluvial sequences in the Nenena Basin and to use field observations to predict reservoir perfomance, lateral continuity of facies, and wireline responses. Key aspects discussed include:

  • Continuity of sand shale packages
  • Sedimentary features and their influence on fluid flow
  • Scale up of logs and core data to outcrop and reservoir scale
  • Seismic expression of a thick fluvial section
  • Effects of faulting on stratigraphy and reservoir communication

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Cook Inlet

PRA consultants have been involved in a number of Cook Inlet Projects:

Exploration
PRA has done Cook Inlet exploration projects for a number of independents. The scope of work has included:

  • Subsurface analysis and mapping
  • Planning 3D seismic aquisition programs
  • 3D seismic interpretation

Development
PRA consultants are actively involved in Cook Inlet development work:

  • Seismic interpretation
  • Well planning

TLO Acreage - Mental Health Trust Lands Office (TLO)
PRA provided an exploration licensing and subsurface leasing strategy for the Alaska State Mental Health TLO. Our strategy blends the best components of the State of Alaska process and those arrangements adopted by the native corporations. Factors which were reviewed and which impacted the leasing strategy included:

  • Environmental sensitivity
  • Oil and gas prospectivity
  • Customer interest
  • Historical public and private leasing transactions