A study of the state of column is at cementation of bore holes

Abstract

Illumination some principles improvement process cementation of bore holes on the basis study of the state column under the action of active components of bore liquids.
The laboratory and analytical receptions researches are set fundamental principles of co-operation of bore liquid and its components with material of pipes at cementation bore holes.
As a result of leadthrough of laboratory and analytical researches process of co-operation material of pipes with active components of bore liquid the aspects mechanism of corrosion boring instrument and column. The mechanism flowing of chemical corrosion pipes, stipulating gradual oxidization of metal is studied. Researches influence of different types of inhibitors are conducted on the indexes measure of defense surface steel. On the basis of anodic and cathode polarization curves the high-quality and quantitative estimation character of corrosive process is done. The necessity realization of careful preparatory measures is well-proven during the leadthrough of cementation works.
The fully certain technological parameters process of lowering and cementation of pipes correspond the observance reliable external of column environments, being based on application of inhibitors corrosions and the special coverages of drill instrument at lowering of it in a bore hole and also causing of protective layer on the external surface of pipes.
The got results of laboratory and analytical researches are base for planning of regime parameters process of descent-liftings operations with a boring instrument and column with the assured providing of high technique-economic indexes. The influences different types of inhibitors given on a study on the indexes measure defence of surface steel are basis of further research works on development compounding of anticorrosive compositions for defence of boring instrument and column