The novel robust drillstring interference prediction1, along trajectory geomagnetic reference, pre-correction setup, the most accurate next generation MSA correction algorithm2, and declination error estimation provide ultimate accuracy for MWD survey correction. That solid stack of the algorithms ensures superior horizontal accuracy for the wellbore positioning.
MSA performance comparison
Absolute positional uncertainty
Additionally, the enhanced BHA sag and misalignment correction algorithm based on finite element method, the high-definition trajectory calculation, and the elaborated MSA correction for accelerometer measurements provide outstanding TVD accuracy.
The fusion algorithm integrated into MWD STD platform provides the best achievable accuracy (as horizontal, as well as vertical) of the the well path based on MWD and Gyro measurements.
MWD-Gyro Measurement Fusion
2. Novel MSA Correction, K. Bulychenkov, 54th General ISCWSA Meeting, October 7rd, 2021