... screw downhole motor. Application of the results will allow to develop a technique to improve the resourse elastomers screw downhole motors. Сonclusions Research results confirmed the effect of diesel fuel on the geometric parameters of the elastomer PDM. The temperature point at which the greatest influence on an elastomer calculated magnitude values relative deformation. A hypothesis about the structural changes in the rubber under the influence of diesel fuel and their impact on the work of the ...

... becauseafter a long stay in the sample solution not only change their dimensions, but greatly soften and begin to delaminate. In addition, small concentrations of the inhibitors may have an adverse synergistic effect with other components of mud to PDM elastomer. The intensity and nature of the interaction of chemicals and samples of the elastomer maybe due to pH value of the medium arising in the preparation of inhibitors of the solution. Сonclusions To assess the combined effect of inhibitors ...

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