Geology Geomechanics Hydrate Stability Zone Thickness Calculator

Observed geothermal profile vs independent matching pressure/composition hydrate boundary; integrate stability-positive intervals with linear crossings, no inferred gas presence or outside-coverage thickness. Caller independently establishes matching units, evidence, method edition and applicability; output is not compliance, diagnosis, work-safety approval, geological identity or validated hazard prediction.

Description

Hydrate stability along a depth profile can be screened by comparing temperature with a supplied stability boundary.

Hydrate stability along a depth profile can be screened by comparing temperature with a supplied stability boundary.1

Integrating intervals where the boundary is at least the measured temperature gives a conditional thickness under linear segment interpolation. Use this tool to calculate geomechanics hydrate stability zone thickness from the supplied measurements and assumptions.

When to use Geology Geomechanics Hydrate Stability Zone Thickness Calculator

Use this tool to calculate geomechanics hydrate stability zone thickness from the supplied measurements and assumptions. Establish the measurement units, sampled interval, calibration or model edition and geological assumptions before entering data.

How to use Geology Geomechanics Hydrate Stability Zone Thickness Calculator and understand its results

  1. Establish the measurement units, sampled interval, calibration or model edition and geological assumptions before entering data.
  2. Enter observedDepthsM, measuredTemperatureC, callerMatchedHydrateBoundaryC, using the field meanings and rules below, then run the tool.
  3. Read stableObservedThicknessM, observedBoundaryDepthsM. Interpret the fields using their units, signs and evidence conventions below.
  4. If input validation fails, correct the reported field and run again. Before applying the result, check reference scope, model assumptions and any missing evidence or placeholder values.
Input fieldMeaningValue typeRequirement
observedDepthsMObserved depths mlist of numberRequired
measuredTemperatureCMeasured temperature clist of numberRequired
callerMatchedHydrateBoundaryCCaller matched hydrate boundary clist of numberRequired

Enter at least two strictly increasing meter depths and aligned measured and boundary temperatures. Define margin=boundary−measured. Count an entire segment when both margins are nonnegative; count none when both are negative; on a sign transition use the nonnegative part of the linearly interpolated interval. Sum the stable portions and return all zero crossings, with plateau knots retained as sampled coordinates. The boundary and profile are supplied, and thickness is confined to the observed depth interval.

margin_i=boundary_i−temperature_i; stableThickness=Σdepth lengths where linear margin≥0

Use the exact units, boundary rules, ordering and missing-evidence conventions above.

Output fieldMeaningValue type
stableObservedThicknessMStable Observed Thickness M; follow the units, sign, ordering and evidence convention stated abovenumber
observedBoundaryDepthsMObserved Boundary Depths M; follow the units, sign, ordering and evidence convention stated abovelist of number
json
{
  "input": {
    "observedDepthsM": [
      0,
      1,
      2
    ],
    "measuredTemperatureC": [
      0,
      0,
      0
    ],
    "callerMatchedHydrateBoundaryC": [
      1,
      1,
      -1
    ]
  },
  "output": {
    "stableObservedThicknessM": 1.5,
    "observedBoundaryDepthsM": [
      1.5
    ]
  }
}

Limitations and assumptions

Integrating intervals where the boundary is at least the measured temperature gives a conditional thickness under linear segment interpolation. Interpretation depends on the units, sampling scope and exact model described above.

All listed fields require explicit values. Unexpected fields, incorrect types, nonfinite numbers and sparse evidence arrays fail validation; the specific bounds and alignment requirements are stated above. Extremely large inputs or outputs can also be rejected. An input error is distinct from a successful result reporting false, no matches or missing evidence.

Alternative or Complementary methods

Use Geology Subsidence Bowl Volume Calculator for this related task: An axisymmetric subsidence bowl can be integrated from radial displacement measurements.

Use Geology Landslide Volume Calculator when its separate inputs and assumptions fit the question: Differencing aligned pre-event and post-event surface heights gives signed change within each measured cell.

References

  1. Geology Geomechanics Hydrate Stability Zone Thickness Calculator — tool.io

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