Elastic Properties (Isotropic)

Description Calculates elastic properties from density and slowness/velocity curve.
Module(s) Insight
Requirements
Related
Works with

Calculate many different isotropic elastic properties from a density curve and slowness or velocity curves.

  1. In the Control Panel, go to View > New Single Well View.
  2. In the Single Well window, open the Process tab.
  3. At the tab header, click the blue "+" icon.
  4. Click on Elastic Properties (Isotropic).
  5. Type a name for the process and click OK.

Configure elastic properties

  1. Enable an entry to include the calculation in the results:
    • P-Velocity
    • S-Velocity
    • P-Impedance
    • S-Impedance
    • Vp / Vs
    • P-Slowness
    • S-Slowness
    • P-Wave Modulus
    • Shear Modulus
    • Bulk Modulus
    • Poisson’s Ratio
    • Young’s Modulus
    • Lamé’s first parameter (lambda, λ)
    • Lamé’s second parameter (mu, μ)
    • Lambda * Rho (λ×rho)
    • Mu * Rho (μ×rho)

Note: Calculations are only available if the required curves have been chosen. For example, if a density curve has not been selected, P and S Impedance calculations are not possible.

  1. Missing / Invalid values: Choose what to do when values for an input curve are outside the available log extent or are Null / Invalid. This rule is applied when calculating each sample:
    • Value is 0:
      • Use the value 0 in the calculation for missing / invalid curve values.
      • Output zero if the result is invalid.
    • Output is Null:
      • Output null (empty value) if the value of any curve is invalid.
      • Output null (empty value) if the result is invalid.
    • Output is 0:
      • Output zero if the value of any curve is invalid.
      • Output zero if the result is invalid.
  1. Velocity type
    • Slowness: Calculate from sonic logs (slowness)
    • Velocity: Calculate from velocity curves
  2. Curve selection
    • Choose a curve for each entry
    • The available curves depend on the chosen velocity type.
  3. Enable custom name:  Allow the user to define the process output curve name.
  4. Suffix: Text to append to each of the calculated curves
  5. Extent: Specify the output curve size (domain and range)
    • Domain: Output curves in MDKB, TVD or TWT
    • First: The first value (in the output domain)
    • Last: The last value (in the output domain)
    • Step: The increment between values (in the output domain)
  6. Reset: Set the extent information to match the first selected curve.
  7. By default, the results use the same domain and extent as the first selected curve. Classes and units for the results are set automatically.