method of measuring resistance with limited compression for formations with the use of the theory of u0441u043au0435u043cu043fu0442u043eu043du0430

摘要

the method of evaluating the strength of rock with limited compression depth zone cutting underground formations to be drilling using drilling u0434u043eu043bu043eu0442 and the drilling fluids.determine the strength of the breeds with unlimited compression at depth of cutting.calculate the change in the strength of the rock because of the known voltage, affecting the formation during drilling, the calculation includes assessment of changes u043fu043eu0440u043eu0432u043eu0433u043e pressure.calculate the strength of rock with limited compression at a depth of cutting zone by adding to the strength of breeds with unlimited compression assessed changes.in the present invention u043fu043eu0440u043eu0432u043eu0433u043e pressure change is calculated in accordance with the theory of u0441u043au0435u043cu043fu0442u043eu043du0430 (Skempton)when the impermeable rock or soil u043fu043eu0440u043eu0432u044bu0439 volume changes because of the attached loads or stresses, and that in fact there is no flow of fluid sr the food in and out of the rock.strength of rock with limited compression can calculate barrels for inclined wells, taking into consideration factors such as the profile of the borehole, u043du0430u043fu0440u044f: the provisions.the diameter of the borehole and the drilling fluids using correction coefficientsby using computer simulation and the use of the formula for determining the strength of rock with uncorrected values for u0433u0440u0430u043du0438u0447u0435u043du043du043eu043c compression.