Based on the results of experimental observations, mathematical models of the impact of the factors under study on repression-wave colmatation are obtained. The values of the factors are established at which mud solutions acquire a higher resistance to sedimentation of the solid phase due to its concurrent dispersion increasing the efficiency of colmatation of absorbing hole sections.
На основании результатов экспериментальных наблюдений получены математические модели влияния исследуемых факторов на параметры репрессионно-волновой кольматации. При этом установлены значения исследуемых факторов, при которых глинистые растворы приобретают более высокую устойчивость к седиментации твердой фазы за счет ее попутного диспергирования, что повысило эффективность кольматации поглощающих интервалов в стволе скважины.
The pressure amplitude in a wave with the energy accumulated in the waveguide channels depending on the fluid characteristics of the rock and the reservoir is determined. A technology and a device for the secondary opening of the productive stratum in a well by making perforation waveguide channels, as well as a device for lowering the filtering shank into the borehole perforation channels, are presented.
Mathematical models of the dynamics of rigid particles during wave reconstruction of the hydrodynamic relation between a hole and a formation are considered. The conditions for cleaning productive rock from colmatant in the wave field of repression and depression are determined. The results of applying the technologies and equipment in the mode of depression-wave cleaning of the bottom-hole formation zone are given.
This paper presents mathematical models for describing the dynamics of solid particles in a wave field during drilling and rock colmatation in formations with low pressure. It is experimentally found that the efficiency of wave colmatation of a sandstone sample begins to significantly decrease at a differential pressure of less than 0.5 MPa and more than 1.4 MPa. Several versions of special drilling equipment have been developed.
