Hydrostatic Pressure & Kill Mud Weight

What this tool does

Hydrostatic pressure and unmargined kill-mud weight from density, TVD, and SIDPP. This page says what the tool is for, in plain language. The working formula stays on the signed-in tool.

When to use it

Open Hydrostatic Pressure & Kill Mud Weight when this is the job: Hydrostatic pressure and unmargined kill-mud weight from density, TVD, and SIDPP. That is usually a capacity, displacement, or geometry check from the pipe record.

Step-by-step

1. Open Hydrostatic Pressure & Kill Mud Weight from the tool list.
2. Fill Unit system, Fluid density, True vertical depth, SIDPP from the instrument, the drawing, or the job record. Use the unit shown beside each field.
3. Fill the remaining fields the same way. Skip a field only when the screen marks it optional.
4. Run Calculate when that control is on the page, then read every result row and any warning.
5. Check the result against the site procedure and the manufacturer data before you change a range, a wire, a setpoint, or a weight.
6. A free account can open this tool after signing in.

Inputs

Unit system

Imperial or metric. Pick one and enter every other field in that system.

Fluid density

Fluid density is the value you read from the instrument, the drawing, or the job record. Enter it in ppg.

True vertical depth

Vertical depth, not the measured depth along the wellbore.

SIDPP

Shut-in drill-pipe pressure, from the gauge you are using for the kill sheet.

Safety margin

Extra mud weight the procedure adds. Enter it once.

Results

Result

The reported value for Hydrostatic Pressure & Kill Mud Weight. Use the unit printed on that row.

Warnings

A warning means an entry is incomplete or outside what this tool will stand behind. Recheck the inputs and the site procedure.

Common mistakes

• Using a nominal diameter where the job needs the measured inside diameter.
• Forgetting that the site procedure may require a different method than this field estimate.
• Do not treat a result from Hydrostatic Pressure & Kill Mud Weight as a substitute for the site procedure or the manufacturer data.

Standards references

These are the standards and public references named on this tool. Clause numbers appear only when the catalog already cites them.

• IADC well-control hydrostatic practice
• API RP 59 well control operations
• Field constant 0.052 psi/ft per ppg (exact 1728 / (231 × 144) = 0.051948)

Offline and access

This engine can run offline after the server has cached it for the signed-in account.

A free account can open this tool in the workspace.