to estimate the complete 3D in-situ stresses (6 components) by the Differential Direction Drilling method through back-analysis of measured radial displacement and/or diametrical convergence in multiple boreholes / wells.
Input data: radial displacement or diametrical convergence.
Number of data points:
minimum: 6 (in total), (1 per borehole).
maximum: 36 (in total).
Data points distribution around a borehole:
for radial displacement: 0 to 360 deg,
for diametrical convergence: 0 to 180 deg.
Note: the maximum number of total data points is limited to 6 (2 per borehole) for the demon version and as a result, the solutions may not be reliable.