1. What is Gas Well Head Pressure?

Well Head Pressure (WHP) is the pressure measured at the surface of a gas well. It represents the pressure available at the wellhead after accounting for the hydrostatic pressure of the fluid column in the wellbore.

2. How Does the Calculator Work?

The calculator uses the fundamental equation:

Where:

• \( WHP \) — Well Head Pressure (psi)
• \( BHP \) — Bottom Hole Pressure (psi)
• \( Hydrostatic \) — Hydrostatic Pressure (psi)

Explanation: The hydrostatic pressure is subtracted from the bottom hole pressure to determine the pressure available at the wellhead.

3. Importance of WHP Calculation

Details: Accurate WHP calculation is crucial for well performance analysis, flow assurance, production optimization, and surface facility design in gas well operations.

4. Using the Calculator

Tips: Enter bottom hole pressure and hydrostatic pressure in psi. Both values must be positive numbers for accurate calculation.

5. Frequently Asked Questions (FAQ)

Q1: What factors affect hydrostatic pressure?
A: Hydrostatic pressure depends on fluid density, true vertical depth, and gravitational acceleration.

Q2: Why is WHP important in gas well operations?
A: WHP determines the pressure available to flow gas to surface facilities and affects production rates and equipment selection.

Q3: How often should WHP be monitored?
A: WHP should be continuously monitored during production to ensure optimal well performance and detect any anomalies.

Q4: Can WHP be negative?
A: In normal operating conditions, WHP should be positive. Negative values may indicate measurement errors or unusual well conditions.

Q5: How does WHP relate to flow rate?
A: WHP affects the pressure differential that drives gas flow. Higher WHP typically allows for higher production rates.