A new method for designing wells was created at the Department of "Drilling Oil and Gas Wells" of SamSTU. The development will allow obtaining more accurate information about the field and predicting problems that may arise during the well operation.

 

"Most of the existing models for assessing sustainability include several parameters that are most often included in the list of so-called scarce data," explained Alexey Podyachev, the associate professor, PhD in technical sciences.

 

The new methodology is based on a deeper interpretation of a standard set of geophysical survey and seismic data. It involves the construction of 1-3-4D geomechanical models. The 1D model helps to evaluate the stability of the well wall, the 3D model shows the stress field over the entire area of the deposit, the 4D model reflects the change in the stress field over time. All this provide qualitative and quantitative estimation of the well wall stability throughout the entire cross-section and at each geographical point of the area under study.

 

A specialized center for 3D modeling is being created at the University, which will carry out a full range of similar studies, the press service of the University reported.

 

The methodology has already been tested on the territory of the Samara region. Also, a number of experiments and comparisons were carried out at the shelf of the North Sea, one of the most difficult from the geological point of view, characterized by great number of faults, wedges and other anomalies.