RESULTS OF RESEARCHING STRESS AND DEFORMATION OF ROCKS DURING RISE AND LIFTING OPERATIONS AND DRILLING OIL AND GAS WELLS
The paper considers the properties and characteristics of two rocks, which are usually brittle, these are clay and anhydrite, these rocks were taken, since during tripping they cause talus and collapse. The tests were carried out in a triaxial compression system. The results of these tests showed how deformations are formed under certain loads and their repetitions, which leads to recommendations for the number of trips for certain parameters.