Skip to main content
CalcPro

Reservoir Compaction & Surface Subsidence (Geertsma) Calculator

Easily calculate and compute reservoir compaction & surface subsidence (geertsma) calculator with accurate equations, live formulas, and expert guidance.

Calculated Result
26.2 cm

Maximum Ground Surface Subsidence (w_max)

Maximum Ground Surface Subsidence (w_max)

26.2 cm

Reservoir In Situ Compaction Cm

42.8

Geertsma Arching Factor

0.409

Casing Buckling Risk

HIGH RISK (Axial Shear Strain on Wellbore Casings)

26.2 — cm

Calculation Breakdown

  1. Applied FormulaModels pore pressure drawdown reservoir compaction, uniaxial formation compressibility Cm, and surface bowl subsidence using Geertsma (1973) poroelastic disc theory.\Delta H = C_m H \Delta P, \quad w_{\text{max}} = 2 (1 - \nu) \Delta H \left( 1 - \frac{D}{\sqrt{R^2 + D^2}} \right)

Reservoir Compaction & Subsidence Metric Output

Interactive visualization based on your current inputs

Calculated Value
0.06.5132026Maximum Ground Surface Subsidence (w_max)

What Is the Reservoir Compaction & Surface Subsidence (Geertsma) Calculator?

This tool computes reservoir compaction & surface subsidence (geertsma) calculator with high precision arithmetic.

How Does the Reservoir Compaction & Surface Subsidence (Geertsma) Calculator Work?

Models pore pressure drawdown reservoir compaction, uniaxial formation compressibility Cm, and surface bowl subsidence using Geertsma (1973) poroelastic disc theory.

Reservoir Compaction & Surface Subsidence (Geertsma) Calculator Formula & Variables

The core mathematical equation utilized by this calculator is expressed as:

ΔH=CmHΔP,wmax=2(1−ν)ΔH(1−DR2+D2)\Delta H = C_m H \Delta P, \quad w_{\text{max}} = 2 (1 - \nu) \Delta H \left( 1 - \frac{D}{\sqrt{R^2 + D^2}} \right)

Models pore pressure drawdown reservoir compaction, uniaxial formation compressibility Cm, and surface bowl subsidence using Geertsma (1973) poroelastic disc theory.

How to Use the Reservoir Compaction & Surface Subsidence (Geertsma) Calculator

  1. Enter your parameters into the designated input fields to calculate the result immediately.

Step-by-Step Example Calculation

Reservoir Compaction & Surface Subsidence (Geertsma) Calculator Example

Input Values:

reservoirThicknessFeet:120
porePressureDepletionPsi:1800
uniaxialCompressibilityCm:6.5
reservoirDepthMeters:2200
reservoirRadiusMeters:3000
Worked Steps: Sample evaluation based on standard reference conditions.

Understanding Your Result

The calculated primary figure indicates the optimal or required cm.

Factors That Affect the Result

  • Measurement tolerances, operational variance, and real-world conditions.

When Should You Use This Calculator?

  • Everyday budgeting, technical homework, professional estimation, and household projects.

Assumptions & Limitations

  • Assumes standard atmospheric or environmental parameters unless specified.

Frequently Asked Questions

Calculation Accuracy & Reference Note

Double-precision IEEE 754 arithmetic with validated empirical constants.

\n

Related Calculators

Explore more tools and calculators in Physics Calculators

Length Converter

Convert length and distance between metric and imperial units including meters, feet, inches, kilometers, miles, and yards with exact SI definitions.

Percentage Calculator

Calculate percentages: what % X is of Y, P% of X, % change, discount price, and percentage points.

Temperature Converter

Convert temperatures between Celsius (°C), Fahrenheit (°F), Kelvin (K), and Rankine (°R) with step-by-step thermodynamic formulas.

Ohm's Law & Electrical Power Calculator

Calculate Voltage (V), Current (I), Resistance (R), and Electrical Power (P) across DC circuits.

Density, Mass & Volume Calculator

Calculate density (ρ = m/V), material mass, or physical volume for solids, liquids, and gases.

Steam Turbine Surface Condenser Cooling Water Duty Calculator

Calculates surface condenser thermal heat rejection (MWth), circulating cooling water pumping volume (m³/h), and steam condensation rate.