Evaluating and Estimating CO2 Facility Needs and Costs Chris - - PowerPoint PPT Presentation

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Evaluating and Estimating CO2 Facility Needs and Costs Chris - - PowerPoint PPT Presentation

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Evaluating and Estimating CO2 Facility Needs and Costs Chris Bledsoe 4 th Annual Wyoming CO2 Conference June 29-30, 2010 Overview Understand the process for evaluating CO2 facility needs Overview of FEED study topics Discuss

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SLIDE 1

Evaluating and Estimating CO2 Facility Needs and Costs

Chris Bledsoe 4th Annual Wyoming CO2 Conference June 29-30, 2010

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SLIDE 2

Overview

  • Understand the process for evaluating CO2

facility needs

  • Overview of FEED study topics
  • Discuss facility issues evaluated during

FEED study

  • Basics of cost estimating for CO2 projects
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SLIDE 3

FEED Study Goals

  • Develop conceptual design of facilities
  • Evaluate alternatives and options
  • Provide cost estimates for analysis of project

economics

  • Develop schedule for project design,

construction, and implementation

  • Identify risks which could impact project cost

and/or schedule

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SLIDE 4

CO2 Project FEED Study Topics

Facilities Water Disposal Regulatory Flood Management CO2 Supply

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CO2 Supply

  • Where are w e getting the CO2?
  • Purchased vs. Recycle
  • CO2 Pipeline Specs

Facilities Water Disposal Regulatory Flood Management CO2 Supply

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Regulatory

  • Regulation for H 2S Operations
  • Sour Gas Pipeline Construction
  • Injection Well Permitting
  • Emissions Limits

Facilities Water Disposal Regulatory Flood Management CO2 Supply

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SLIDE 7

Facilities

  • Gas Processing / Recycle Facility
  • Surface Production Facilities
  • Surface Injection Facilities
  • Safety Systems

Facilities Water Disposal Regulatory Flood Management CO2 Supply

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Water Disposal

  • Waterflood makeup w ater
  • New or existing w ater disposal

w ells

  • Commercial w ater disposal

systems

Facilities Water Disposal Regulatory Flood Management CO2 Supply

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Flood Management

  • Injection Well Operation
  • Production Well Operation
  • Data Collection / Automation
  • Staffing Levels

Facilities Water Disposal Regulatory Flood Management CO2 Supply

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CO2 Supply

  • Sources

– Geologic (Sheep Mountain, Bravo Dome) – Anthropogenic (Natural Gas Plants, Ethanol Plants)

  • Delivery Method

– Pipeline – Trucking

  • Delivery Conditions

– Pressure – Temperature – Composition – Water Content

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Gas Processing

  • What to do with the recycle gas stream

– Hydrocarbon recovery – Full-stream reinjection

  • Dehydration
  • Compression

– Optimal operating pressures – Horsepower requirements – Gas engine vs. electric motor drive – Efficiency of pumping vs. compression

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Typical Recycle Stream

Inlet Compression Produced Gas Stream Field Injection Dehydration (if necessary) Re-Injection Compression Emergency Flare

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Production Facilities

  • Operating pressure
  • Flowline sizing and materials
  • Separator sizing
  • Adequate test facilities?
  • Automation requirements
  • Vent / relief systems
  • Water and oil separation
  • Storage capacity – adequate tankage?
  • Vapor recovery
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Injection System

Operating pressure Water and CO2 distribution system layout Injection flowline sizing and materials Hydraulic modeling of injection system WAG injection skid design / location

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Water Handling

Where to put excess produced water?

– Utilize in existing waterflood – Use for “fill-up” in future CO2 project phases – Water disposal wells – Surface discharge permits

Make up water

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Auxiliary Systems

Electric power availability

– Coordinate with electric power provider – Power system analysis

Fuel gas needs and availability

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Cost Estimating

  • Utilize conceptual design from FEED study
  • Focus on capturing MAJOR costs
  • Understand the level of accuracy
  • Estimating methods

– Vendor quotes – Historical information – Rules of thumb (i.e. $60,000 / inch-mile)

  • Acknowledge regional factors
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FEED Study Deliverables

  • Technical Report

– Summary of study – Design description and justification – Comparison of design alternatives

  • Capital and Operating Cost Estimates
  • Project Schedule
  • Risk Analysis
  • Process Flow Diagram(s)
  • Field Layout / Routing Plans
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Needs from Client

  • Results of reservoir modeling

– Forecast production/injection rates and pressures

  • Maps

– Field map with well and facility locations – Pipeline maps (CO2 delivery, sales pipelines, etc.) – Power distribution system map

  • Fluid properties
  • Information on existing facilities

– Equipment lists, drawings, etc.

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Questions?