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Survey Corrections Beta

MWD Survey Corrections and Multi-Station Analysis

Analyze six-axis MWD measurements, verify magnetic and grid references, and calculate corrected inclination, azimuth, and wellbore position.

Compare raw and corrected surveys, inspect per-run results, and review calculated positional uncertainty.

Open Survey Corrections → Validation Results

Beta — independent verification required. Results must be independently reviewed before operational or final well-positioning decisions.

DirectionalPlan raw and corrected final-position uncertainty ellipses with marked bottom-hole positions
Final-position uncertainty at 2 sigma using different assigned raw and corrected survey error models

Survey Analysis

From Measurements to Corrected Surveys

Import survey measurements, check magnetic and coordinate references, then examine the corrected surveys and calculated wellbore position.

DirectionalPlan Survey Corrections input screen with upload and manual-entry options
Survey data entry Upload raw MWD measurements or paste data from Excel

Survey Results

Raw and Corrected Surveys

Compare wellbore trajectories and station-by-station changes in inclination and azimuth.

Raw and corrected Falcon Ridge 3H plan-view trajectories with a final-position inset and uncertainty ellipses
Plan View Full trajectory with a final-position detail view

Example results from Falcon Ridge 3H. Trajectory ellipses use different assigned raw and corrected survey error models at 2 sigma.

Sensor Diagnostics

Magnetic and Gravity Measurements

Review measured and corrected sensor values alongside the references used in the analysis.

Measured and corrected total magnetic field with reported and fitted reference lines
Total Magnetic Field Total magnetic field with reported and fitted references

These plots assess sensor/reference consistency, not independent bottom-hole positional accuracy.

Engineering Verification

Blind Testing Against Known Bottom-Hole Positions

DirectionalPlan has been evaluated using simulated MWD surveys with known bottom-hole locations withheld until the corrections were calculated.

10 documented eight-well validation sets met the statistical acceptance criterion in their respective verification spreadsheets.

Review the per-well errors, statistical results, and engineering limitations behind the evaluations.

View Validation Results →
80 Wells 10 documented blind known-position test sets
10 of 10 PASS All 10 batches met the acceptance criterion
92 / 130   Average reported 2σ sample error statistic versus the acceptance threshold

Survey Corrections

Explore the Correction Tool

Upload raw survey measurements or enter data manually to review reference checks, corrected survey stations, and calculated position changes.

Open Survey Corrections →