understanding the fundamental uncertainties related to co 2 geologic storage n.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
Understanding the fundamental uncertainties related to CO 2 geologic storage PowerPoint Presentation
Download Presentation
Understanding the fundamental uncertainties related to CO 2 geologic storage

Loading in 2 Seconds...

play fullscreen
1 / 18

Understanding the fundamental uncertainties related to CO 2 geologic storage - PowerPoint PPT Presentation


  • 73 Views
  • Uploaded on

Understanding the fundamental uncertainties related to CO 2 geologic storage . A case study in Nugget Suite west of Hogback thrust Guang Yang, MS Candidate. Introduction. Basic workflow in reservoir modeling and simulation

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Understanding the fundamental uncertainties related to CO 2 geologic storage' - morna


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
understanding the fundamental uncertainties related to co 2 geologic storage

Understanding the fundamental uncertainties related to CO2geologic storage

A case study in Nugget Suite west of Hogback thrust

Guang Yang, MS Candidate

introduction
Introduction
  • Basic workflow in reservoir modeling and simulation

structural modelinglithofaciesmodelingpetrophysicalmodelingupscaling(if applicable)flow simulation

  • Uncertainties associated with these steps
  • Possible pollution to shallow freshwater
  • Identify the most influential factor(s) controlling CO2 storage, leakage and potential hazards
research approach
Research approach
  • Data Collection

Collect as much data as we can get (including analog data)

  • Geological modeling

Using hierarchical modeling and most reasonable geostatistical scheme

  • Reservoir Simulation

Freshwater and saline water interface change?

  • Sensitivity Analysis

Experimental Design

data collection
Data Collection
  • Geophysical & geological data
  • Water chemistry data
  • No seismic data
  • Engineering data

Core measurements

Well-log data

  • Data sources:

NETL Rocky Mountain Basins Produced Water Database

Wyoming EOR Reservoir Database

Wyoming Oil & Gas Conservation Commission(Well logs)

study site
Study site

Nugget Suite

After Lamerson, 1983

geological analog
Geological analog
  • Data in nearby production fields
  • Data in other eolian sandstone formation

literature reference

Our Model Domain

Kupfersberger and Deutsch, 1999

uncertainties
Uncertainties
  • Heterogeneity of the reservoir at various scales
  • Fracture (enhanced vertical permeability)
  • Boundary condition (sealing fault or non-sealing fault, recharge rate)
  • Facies distribution (probability maps & vertical proportion curve3d-cube?)
  • Porosity and permeability distribution trend & depth trend
  • Relative permeability hysteresis
preliminary results
Preliminary results

*Preliminary facies interpretation of the model with the location of injection wells

*Limited well data to generate 3d facies distribution probability cube

preliminary results1
Preliminary results
  • Porosity depth trend which would be incorporated into porosity modeling
preliminary results2
Preliminary results
  • Kv/Kh, Khmax/Kh90deg which would be incorporated into permeability modeling

Based on core measurements at nearby sites

flow simulation
Flow Simulation
  • Eclipse Gaswater
  • Eclipse CO2STORE(need to extract a part of the model)

(Salinity tracking, no water-rock interaction)

  • 267,500 grid cells
  • Relative permeability curves (Bennion and Bachu, 2005, 2006)
  • Zero capillary pressure
  • Injection started from Jan. 2010, stopped in 2060. Monitored till 3410
  • Initial Condition & Boundary Condition(Aquifer Modeling)

Hydrostatic, constant head for i+,j+,j- boundaries.i-,k+,k-closed.

  • Bottom Wellbore Pressure constraint (Zhou et al., 2008)

1.8*hydrostatic pressure

preliminary simulation result1
Preliminary Simulation Result

1

Gas saturation change in injector3

1

Gas saturation change in injector 4

ongoing work
Ongoing work
  • Investigate the possible 3 zones of nugget sandstone as indicated by data

From the W29-12 well in Anschutz Ranch East Field,Lindquist,1986

ongoing work1
Ongoing work
  • Possible porosity distribution based on data from other sites

(Can we infer the porosity trend based on that?)

ongoing work2
Ongoing work

Using alternative facies & petrophysical property simulation methods:

*Combining SIS and annealing method

(Christopher J. Murray, AAPG book,1994)

*Gaussian collocated cosimulation algorithm

(Alberto, AAPG book, 1994, Y. Z. Ma SPE, 2008)

ongoing work3
Ongoing work
  • Investigate how to generate a saline water and freshwater interface or salinity distribution in Petrel