METHOD OF COMPENSATING FOR TEMPERATURE-INDUCED DEFORMATION OF CASINGS

摘要

the invention u043eu0442u043du043eu0441u0438u0442u0441u00a0 for drilling wells and can be used in the exploitation of u043du0435u0444u0442u00a0u043du044bu0445 and gas wells. the promotion of u043eu0441u0443u0449u0435u0441u0442u0432u043bu0435u043du0438u00a0 way in expanding the temperature range of works. u0434u043bu00a0 u043au043eu043cu043fu043bu0435u043au0442u043eu0432u0430u043du0438u00a0 free part of the casing string at first, establish the u0442u043eu043bu0441u0442u043eu0441u0442u0435u043du043du0443u044e section of the tube, above which are the pipes of the titanium, and then tonk u043eu0441u0442u0435u043du043du0443u044e section of pipe.the length of the pipe section is chosen in accordance with the dependence 103u0441u0442 lti lti =, where is the length of the pipe of the alloy of titanium, mm;art is the sum of the elongation of u0442u043eu043bu0441u0442u043eu0441u0442u0435u043du043du043eu0439 sections and thin wall pipes, mm. u0431u043bu0430u0433u043eu0434u0430u0440u00a0 installation section pipes, titanium u043eu0431u0435u0441u043fu0435u0447u0438u0432u0430u0435u0442u0441u00a0 lowering temperature u043du0430u043fu0440u00a0u0436u0435u043du0438u0439 in the column due to the u043fu0440u043eu0442u0435u043au0430u043du0438u00a0 in individual u0441u0435u043au0446u0438u00a0u0445 column u0440u0430u0437u043du043eu0438u043c u0435u043du043du044bu0445 deformations. 2).