There the study objects are the boring tricone bits. The analytical and the experimental studies have been executed under the condidions of stand and field. The technique to choose the type of rolling cutter bit, which procides for the effective caving of rocks during the drilling of wells, has been developed. The field checking has been taken place at the areas of West Siberia, the opportunity to rise the effectiveness of well making has been showed. The types of boring bits to drill the wells over 500 - 3200 m range, which provide for the rise of route drilling rate, have been recommendedAvailable from VNTIC / VNTIC - Scientific & Technical Information Centre of RussiaSIGLERURussian Federatio
The work is devoted to the calculation of the main technological parameters of a bit of a new patent...
There the problem about the correction of heavy emergenicies by the cutting and by the drilling of s...
Methodical principles used in determining the losses and improverishment at controlled ore discharge...
There the purpose is to raise to rate of drilling process of wells at the open casts in the rocks wi...
There the operation mode of rolling cutter bits, which allows to use rationally the life of bit supp...
In this work drilling tools and drilling technology of rising and technical boreholes of large-size ...
There the purpose is to increase the operation efficiency of cutting-chipping bits by the combined a...
There the study object is the rock to be destructed by the rolling cutter bit at the simultaneous ac...
This study presents the concept of shaft constructed by raise boring in underground mines, and the i...
While defining rational constructive and technological underground mining technique parameters we sh...
While defining rational constructive and technological underground mining technique parameters we sh...
There the study object is the blasting of benches of open casts. The purpose is to develop the effec...
AbstractThis study presents the concept of shaft constructed by raise boring in underground mines, a...
The work is concerned with the laying of directional wells in the North of Russia's European part. T...
There the purposes are to develop the theoretical foundations to raise the rate of driving by the ho...
The work is devoted to the calculation of the main technological parameters of a bit of a new patent...
There the problem about the correction of heavy emergenicies by the cutting and by the drilling of s...
Methodical principles used in determining the losses and improverishment at controlled ore discharge...
There the purpose is to raise to rate of drilling process of wells at the open casts in the rocks wi...
There the operation mode of rolling cutter bits, which allows to use rationally the life of bit supp...
In this work drilling tools and drilling technology of rising and technical boreholes of large-size ...
There the purpose is to increase the operation efficiency of cutting-chipping bits by the combined a...
There the study object is the rock to be destructed by the rolling cutter bit at the simultaneous ac...
This study presents the concept of shaft constructed by raise boring in underground mines, and the i...
While defining rational constructive and technological underground mining technique parameters we sh...
While defining rational constructive and technological underground mining technique parameters we sh...
There the study object is the blasting of benches of open casts. The purpose is to develop the effec...
AbstractThis study presents the concept of shaft constructed by raise boring in underground mines, a...
The work is concerned with the laying of directional wells in the North of Russia's European part. T...
There the purposes are to develop the theoretical foundations to raise the rate of driving by the ho...
The work is devoted to the calculation of the main technological parameters of a bit of a new patent...
There the problem about the correction of heavy emergenicies by the cutting and by the drilling of s...
Methodical principles used in determining the losses and improverishment at controlled ore discharge...