oil-and-gas-volumetrics
Sub-skill of oil-and-gas: Volumetrics (+3).
Best use case
oil-and-gas-volumetrics is best used when you need a repeatable AI agent workflow instead of a one-off prompt.
Sub-skill of oil-and-gas: Volumetrics (+3).
Teams using oil-and-gas-volumetrics should expect a more consistent output, faster repeated execution, less prompt rewriting.
When to use this skill
- You want a reusable workflow that can be run more than once with consistent structure.
When not to use this skill
- You only need a quick one-off answer and do not need a reusable workflow.
- You cannot install or maintain the underlying files, dependencies, or repository context.
Installation
Claude Code / Cursor / Codex
Manual Installation
- Download SKILL.md from GitHub
- Place it in
.claude/skills/volumetrics/SKILL.mdinside your project - Restart your AI agent — it will auto-discover the skill
How oil-and-gas-volumetrics Compares
| Feature / Agent | oil-and-gas-volumetrics | Standard Approach |
|---|---|---|
| Platform Support | Not specified | Limited / Varies |
| Context Awareness | High | Baseline |
| Installation Complexity | Unknown | N/A |
Frequently Asked Questions
What does this skill do?
Sub-skill of oil-and-gas: Volumetrics (+3).
Where can I find the source code?
You can find the source code on GitHub using the link provided at the top of the page.
SKILL.md Source
# Volumetrics (+3)
## Volumetrics
```python
# Stock Tank Oil Initially In Place (STOIIP)
STOIIP = 7758 * A * h * phi * (1 - Sw) / Boi # STB
# Gas Initially In Place (GIIP)
GIIP = 43560 * A * h * phi * (1 - Sw) / Bgi # SCF
```
## Decline Curves
```python
import numpy as np
# Exponential decline
q_exp = qi * np.exp(-D * t)
# Hyperbolic decline
q_hyp = qi / (1 + b * D * t) ** (1 / b)
# Harmonic decline (b = 1)
q_harm = qi / (1 + D * t)
```
## Material Balance (General Form)
```python
# F = N * Et + We - Wp * Bw
# F = underground withdrawal
# Et = total expansion
# We = water influx
```
## STOIIP Function with Validation
```python
def calculate_oil_in_place(
area_acres: float,
thickness_ft: float,
porosity: float,
water_saturation: float,
formation_volume_factor: float
) -> float:
"""
Calculate Stock Tank Oil Initially In Place (STOIIP).
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