Petromium Tools / Formula set WC-VERT-001

Well-Control Kill Sheet

Vertical well · conventional circulation · browser-only workspace· V2.0

Stack

Method

Units

Stored only in this browser · tap any field unit for quick conversion

Wait & Weight

Circulation path · surface stack

Vertical well-control schematic

surface stack · bit on bottom

ControlledWC-VERT-001 v1.0.0

Figure data

Well geometry and shut-in readings behind the schematic
Quantity	Value
Bit TVD (ft)	10,000
Hole TVD (ft)	10,000
Shoe TVD (ft)	5,000
SIDPP (psi)	500
SICP (psi)	1,000
Pit gain (bbl)	20
Selected MAASP (psi)	1,450
Kill mud weight (ppg)	12.96

Pressure schedule

Circulating pressure against cumulative strokes · Wait and Weight

ControlledWC-VERT-001 v1.0.0

Compact pressure schedule

1,200

ICP · psi

756

FCP · psi

3,529

Strokes to bit

5,588

Bottoms up

Figure data

Circulating-pressure schedule behind the figure
Step	Strokes	Target pressure (psi)
Surface	0	1,200
10%	353	1,156
20%	706	1,111
30%	1,059	1,067
40%	1,412	1,022
50%	1,765	978
60%	2,118	934
70%	2,471	889
80%	2,824	845
90%	3,176	800
Kill fluid at bit	3,529	756

SCR pressure

700 psi

ICP

1,200 psi

FCP

756.09 psi

To bit

3,529 strokes

Bottoms up

5,588 strokes

Review - not an approval

Annular pressure limits

SICP

1,000 psi

Selected MAASP

1,450 psi

Static margin

450 psi

SICPSelected MAASP

Static comparison only. The tool does not predict maximum dynamic casing pressure or prescribe a choke action.

Worksheet sections

Declared scope

Vertical well, conventional circulation. No MPD, bullheading, volumetric, lubricate-and-bleed, or deviated-well schedule.

Pre-recorded data

Worksheet nameTrue vertical depthCurrent bit TVD. The pressure schedule is limited to a vertical-well model.Current hole TVDBottom of the current hole. Enter a deeper value when the bit is off bottom.Current mud weightVerified active-system density at shut-in.Additional kill-fluid marginDefault is zero. Base KMW remains visible when a margin is entered.

Slow-circulating-rate pressureRecorded at the selected kill rate, fluid, path, and equipment state.SCR pump ratestrokes/minPump outputUse the current pump table or calibrated output.Maximum pump pressureOptional

Calculation complete

Calculation audit

0 warnings

Planned kill mud weight

12.962 ppg

ICP

1,200 psi

FCP

756.09 psi

Formation pressure

6,740 psi

Total strokes

9,118 strokes

Calculation observations

No engine flags. This is not an operational approval; independent verification remains required.

Operational use warning: This worksheet supports - and does not replace - the approved well-control program, current rig procedures, barrier verification, and competent-person review. Independently verify every input before action.

WC-VERT-001 v1.0.0

Example values loaded - replace every value with verified rig data.