GasWell Optimization

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GasWell Optimization

• GasWell is an easy to use package used for
  optimizing the performance of a gas well.
  Sandface inflow, tubing performance and wellhead
  conditions are used to maximize production. With
  this package the user can investigate the flow
  improvement after stimulation, increasing the
  wellbore, and lowering wellhead pressure. Up to
  six different wellbore sizes can be investigated
  in one run.

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GasWell OptimizationAgenda

• Well data
• Pool data
• Gas analysis data
• Special Features, Methods and Correlations
• Output Reports and Graphs
• Demo
• Question

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Well Data

• Wells are defined within a pool, group, and a
  lease.
• Well data includes Elevations, Perforations,
  wellhead conditions.
• Deliverability AOF parameters.
• Directional Drilling Survey.
• Wellbore Tubing, Casing or Annular.

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Well Data
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Well Deliverability
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Well Directional
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WellBore
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Well Working Interests
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Well Elevations
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Well Elevations
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Well Perforations
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Pool Data

• Reservoir Data Initial Pressure, Formation
  Temperature, and Datum Elevation.
• Abandonment Pressure

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Pool Data
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Gas Analysis Data

• Full Gas Analysis 12 Component gas analysis
  including N2, CO2 and H2S, C7 properties
  (Molecular Weight, Specific Gravity)
• Simple Gas Analysis 3 non-HC including N2, CO2
  and H2S, and a total gas specific gravity.

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Gas Analysis
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Gas Analysis
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GasWellSpecial Features

• Well Deliverability
• Simplified (Rawlings and Schellhardt(1936)
• LIT-Pressure
• LIT-Pressure Squared (Houpert, 1959)
• LIT-Pseudo Pressure (Al-Hussainy, 1965)
• Gas IPR (Aronofsky and Jenkins, 1954)

• Bottomhole Pressure
• Average Density method.
• Average Temperature and Average z-factor method.
• Sukkar and Cornell method.
• Cullender and Smith (1959)

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GasWellSpecial Features cont.

• True vertical depth
• Segmented
• Tangential
• Average Angle
• Radius of Curvature
• Minimum Curvature

• Wellbore
• Tubular flow
• Casing flow
• Annual flow
• Size different sizes

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Calculation Methods
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Correlations
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Output, Reports and Graphs

• Table of results for current time step
• Diagram of results
• Table of results by component
• Deliverability, AOF, Production, Compression, Gas
  analysis, Heating Value
• Numerous reports
• Well, pool, group, lease, company, etc.
• Numerous graphs

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Reports
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Graphs
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Graphical Results