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Borehole milling cutters buy in Baku
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Borehole milling cutters

Borehole milling cutters

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Azerbaijan, Baku
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Description
nbsp;Borehole milling cutters are intended for milling of metal, a cement stone at accident elimination in a well and a zaburivaniye of new tables. Milling — the most widespread way of destruction of metals in a well trunk based on cutting by various cutting devices. The main difference of operation of the borehole milling tool (BMT), its cutting elements from operation of the cutting tools used in metal working — lack of a possibility of ensuring periodic sharpening of the cutting elements, control of a state in the course of work, often loose condition of object of milling (processing). More severe conditions of work of SFI demand ensuring abrasive firmness, a kromkostoykost of the cutting elements and effect of self-sharpening. For providing high technical and economic rates of work of SFI first of all it is necessary to reach high resistance and speed of a driving, and it requires the complex solution of a task of the choice of the effective mode of working off, material, a form, the size of cutters, the scheme of their placement, a stock, the scheme of washing and cooling of a working surface.
Operational and design data of the borehole tool and devices are defined by appointment and conditions of their work. It caused also a big kind of standard sizes and designs.
Conditions under which borehole milling tools work depend generally on a look and technology of rescue and recovery operations. With other things being equal, with increase in depths and reduction of diameters of wells, operating conditions of the tool sharply worsen. Reduction of diameter causes inevitable reduction of dimensions of the tool that complicates creation of a reliable and high-performance design.
Objects of milling differ on properties of material, conditions of their bedding, character of an arrangement in a well, to the geometrical sizes, the milling purposes, etc.
Milling of emergency object in a well is carried out, mainly, in the following purposes:
cleaning of a trunk of a well of the taken, jammed and cemented pump and compressor and boring pipes, packers, pumps (ETsN), bars, chisels and other objects with continuous milling;
correction of the top end of an emergency subject milling for the subsequent capture by its lovilny tool;
cutting a site of an upsetting or boring column over the cemented, taken interval for their extraction or conducting of the second trunk;
correction of smyatiya and demolitions of an upsetting column;
 processing (oburivaniye) of an emergency subject of a ring for rise by its various lovitel.
Productivity of milling will be defined first of all by object of milling:
physicomechanical properties of material of object;
nature of fixedness and arrangement of emergency object in a well trunk.


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