METHOD FOR CONTROLLING PROPERTIES OF DRILLING MUD DURING CIRCULATION

摘要

P the invention relates to the techniques of the drilling of wells. / p & & p & the process forming the subject of the invention is characterizes in that it continuously measuring the potential oxidation-reduction - reduction of the drilling mud at the input and at the output of the well, it compares the values obtained, it records the potential rain-effect of the oxidation-reduction - reduction of the drilling mud at the output of the well with respect to its value at the input of the well, after which, in the case of a change in the level of the products of the reactions of oxidation in the drilling mud at the output of the well, it is subjected to the drilling mud entering into the well, an electrical conducting, so as to raise the level of products of the reactions of reduction to the potential recovery of the oxidation-reduction - reduction of the drilling mud at the output of the well at the prescribed value, or else, in the case of a change in the level of the products of the reduction in the drilling mud at the output of the well, it is subjected to the drilling mud entering into the well, an electrical conducting, so as to raise its degree of oxidation reactions up to the potential recovery of the oxidation-reduction - reduction of the drilling mud at the output of the well at the prescribed value. / p & & p & the invention applies in particular to the drilling of wells oil and gas. / p