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e_Semilog Analysis for Gas Wells

# e_Semilog Analysis for Gas Wells - 1 Semilog Analysis For...

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Unformatted text preview: 1 Semilog Analysis For Gas Wells 2 Outline Flow Equations For Gas Wells • Pseudopressure • Pressure-Squared • Pressure Non-Darcy Flow Example 3 Diffusivity Equation - Liquids Continuity Equation Equation of State For Slightly Compressible Liquids??? Darcy’s Law t p k c r p r r r t ∂ ∂ = ∂ ∂ ∂ ∂ φ μ 1 4 Real Gas Law znRT pV = 5 Real Gas Pseudopressure ( 29 ∫ ≡ p p p z pdp p p 2 μ 6 Gas Flow Equation Real Gas Pseudopressure Continuity Equation Real Gas Law Equation of State Darcy’s Law μ c t vs. p is non-linear t p k c r p r r r p t p ∂ ∂ = ∂ ∂ ∂ ∂ φ μ 1 7 Gas Flow Equation Pressure-Squared Continuity Equation Real Gas Law Equation of State Darcy’s Law Assume μ z is constant t p k c r p r r r t ∂ ∂ = ∂ ∂ ∂ ∂ 2 2 1 φ μ 8 Pressure-Squared - Range Of Application...
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e_Semilog Analysis for Gas Wells - 1 Semilog Analysis For...

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