11 years on Allbiz
Our plant lets out three types of centralizers of the conditional sizes from 102 to 426 mm. centralizers like ZZ - the elastic demountable national teams with arc-shaped levels for cementation of obsidional columns in vertical and slaboiskrevlenny (to 15-20 degrees) wells; centralizers of the TsTs-2 type for cementation of columns in vertical and inclined wells, have rigidly elastic characteristic which is caused by existence, the sizes and a form of execution of a trapezoid ledge; centralizers like TsPS — elastic welded with arc-shaped levels, shafts of small diameter of the second trunks which are carried out through the windows in operational columns for extension of term of operation of wells of old fund applied to cementation of columns in vertical and inclined wells, and also in fastening cases. Our centralizers executed at the level of the best world samples of firms "Vezerford", "Halliburton", etc. guarantee providing extent of centering of upsetting columns of 67% according to requirements of the standard 10D AOI (American Oil Institute). The increased technical and economic efficiency of centralizers is caused by the fact that they provide reliable descent of columns in a well due to prevention of sticking of upsetting pipes to walls of an open trunk or landings with their end faces of couplings on ledges of walls of an open trunk. Significantly quality of cementation due to prevention of formation of stagnant zones in narrow part of a ring gap between a column and walls of a well and even due to performance by centralizers of function of metal fittings in the reinforced concrete which is formed for columned after cement hardening increases. In the code of a centralizer (for example, TsTs-2-168/216) it is designated: ZZ, TsTs-2, TsPS - centralizer type; 102... 168... 245... 324 - diameter of the equipped column /191-216.../216.../270.../295 - diameter of an open trunk of a well in the range of centering of a column.
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CENTRALIZER OF UPSETTING COLUMNS
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