Well Planning & Survey Calculator

WELL INFORMATION

Well Name

Field / Block

Wellbore

KB Elevationft

Water Depthft

Surface Lat (°N)

Surface Lon (°E)

Mag Declination°

Grid Convergence°

VS Azimuth°TN

CURRENT WELLBORE STATUS

Total MD0ft

Total TVD0ft

TVD/MD Ratio1.000

North (cumul.)0ft

East (cumul.)0ft

Closure Dist0ft

Closure DirN0.0°E

Vert Section0ft

Max Inc (°)0.00°

Max DLS0.00°/100ft

Survey Stations0

STATUS

Data OK

Calculations OK

DLS within limits

TVD monotonic

Inclination valid

Azimuth valid

DLS Thresholds:

■ OK: 0 – 2°/30m

▲ WARN: 2 – 3°/30m

● DANGER: >3°/30m

CALCULATION METHOD

Minimum Curvature: Industry standard. Assumes wellbore follows a circular arc between survey stations. Most accurate. RF = (2/DL)×tan(DL/2).

COLUMN LEGEND

DL ° = Total dogleg angle in interval (°)

e.g. 20°→25° INC = DL 5.000°

DLS = Dogleg Severity (°/100ft)

= DL ÷ ΔMD × 100

5° ÷ 500ft × 100 = 1.00°/100ft
5° ÷ 100ft × 100 = 5.00°/100ft

RF = ratio factor (Min. Curv.)

VS = vertical section (target azimuth)

#	INPUTS			DOGLEG				TVD			NORTH / SOUTH			EAST / WEST			CLOSURE			DEL
#	MD	INC °	AZ °	ΔMD	DL °	DLS °/100ft	RF	ΔTVD	TVD	T/M	ΔNorth	North	BRate	ΔEast	East	TRate	VS	Closure	Cl Dir	DEL

0 survey stations | Method: Minimum Curvature DLS formula: DL° ÷ ΔMD × 100 | Example: 5° in 500ft = 1.00°/100ft · 5° in 100ft = 5.00°/100ft

PROFILE PRESETS — click to auto-populate sections

GLOBAL SETTINGS

Surface MDft

Target Azimuth°TN

Survey Intervalft

Survey Tool

WELLBORE SECTIONS (multiple KOPs supported)

■ Vertical ■ Build ■ Hold ■ Drop ■ Lateral

#	Type	KOP/End MD	Rate °/100	End Inc°	Az °TN	TRate	×

ⓘ Vertical: KOP/End MD = depth to KOP
ⓘ Build/Drop: End MD = KOP + (ΔInc/Rate)×100
ⓘ Hold/Lateral: KOP/End MD = ending MD

TARGET DATA

Target TVDft

Target Northft

Target Eastft

Target Radiusft

CASING / HOLE

Surface Casing MDft

Intermediate MDft

Production MDft

TD (MD)ft

Inc Accuracy°

Az Accuracy°

PLANNED WELLBORE TRAJECTORY

Section	From MD	To MD	ΔMD	Inc (°)	Az (°)	ΔTVD	TVD	ΔNorth	North	ΔEast	East	DLS

PLANNED GEOMETRY SUMMARY

EOB MD:
—

EOB TVD:
—

EOB Inc:
—

Target TVD:
—

Target North:
—

Target East:
—

Total MD:
—

Horizontal Reach:
—

Max DLS:
—

🔭 TOP VIEW — Plan View (North / East)

Show Plan Show Target Labels

📉 SIDE VIEW — Vertical Section

X-Axis: Plan

WELLBORE SUMMARY

Well Name—

Total MD—ft

Total TVD—ft

KB Elevation0ft

Survey Stations0

Calc MethodMin. Curvature

DISPLACEMENT

Cumul. North/South—ft

Cumul. East/West—ft

Closure Distance—ft

Closure Direction—

Vertical Section—ft

Horiz Departure—ft

INCLINATION / AZIMUTH

Max Inclination—°

Max Inc at MD—ft

Final Inclination—°

Final Azimuth—°

KOP (approx)—

EOB (approx)—

DOGLEG SEVERITY

Max DLS—°/100ft

Max DLS at MD—ft

Avg DLS—°/100ft

Stations > 2°/30m0

Stations > 3°/30m0

Total Dog Legs (°)—

FIRST / LAST STATIONS

Station	MD	Inc	Az	TVD	North	East	DLS

⛽ WELL PLANNING & SURVEY CALCULATOR