Scientific journal
European Student Scientific Journal
ISSN 2310-3094
ISSN 2310-3094
DEVELOPMENT OF THE METHOD OF THE DIRECTED HYDRAULIC FRACTURING OF PRODUCTIVE LAYER
Botbaev M.T. 1
Kaziev M.T. 1
Sadyrbaeva A.S. 1
1 The southern Kazakhstan state university of M. Auezov
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Hydraulic rupture of layer - influence process liquid on sheeted breed under a high pressure at its forcing in layer. At the heart of a hydraulic gap the principle of change of structure of breed lies at high repressions. Teoretikcheski a skeleton of rock will collapse at impact on the layer, exceeding mountain pressure at a set depth. As practice showed, hydraulic fracturing of breed is observed at significantly smaller repressions. This circumstance speaks, first, existence of an initial jointing of breeds, breaks and not uniformity, and secondly, essential the smaller maximum permissible tension of breed on a gap, than on compression.
Hydraulic fracturing is observed in jointed breeds with pronounced natural and plastic properties. Distinguish the directed hydraulic fracturing for a certain interval of layer and the general hydraulic fracturing on all power of layer.
The directed hydraulic fracturing is carried out in perspective the areas, and, as a rule, has pointervalny character. After carrying out approbation of a well and allocation of the main intervals of inflow to it lower special configuration shell, containing two packers, divided by the punched pipe. The tool fix serially in each set interval. Packer bring into position. Quality of a raspakerovka control on circulation existence in zatrubny space of a well, and also special zatrubny manometers with pressure regulator. In case of a qualitative gerkmetization of the allocated interval which is checked by pressure testing, begin layer hydraulic fracturing.
hydraulic fracturing
oil recovery
oil recovery increase
field
layer
horizontal drilling.