Restoration of intake capacity of injection well by vibrations

Abstract

Nowadays deterioration of productivity and intake capacity of wells cause different problems in exploitation of oil and gas fields. It happens because of some irreversible physicochemical processes in the bottomhole formation zone: swelling of clay materials, colmation, formation of stable emulsions, confluence of salts, iron oxides etc. Various methods and technologies are used to solve these problems. However, they have disadvantages, for example, material and energy intensity, short-lived equipment, technological complexity. The method of pulse action by various vibrations seems to be the most effective solution. Vibrations are mechanisms that create controlled fluctuations of the working body influencing a recycled material and a reservoir. Now they are widely used in different industries.

Analysis of the application of a chemical method for preventing hydrate formation on the example of the Novo-Chaselskoye field

“…In the wells of the Novo-Chaselskoye field, conditions for the removal of condensation water are implemented. Therefore, reservoir conditions are chosen for point 1, the "protected" point 2 is located at the end of the plume (in front of the entrance of the BVSHIZR UCP) [2,17]. There is no outflow of reservoir water by wells, i.e.…”

Processes of vibroimpact treatment of wells

“…Many times more information is published in foreign journals. Over the past 10 years, the number of foreign published articles has doubled and tends to increase [11][12][13][14][15][16][17]. A significant number of foreign publications are of an advertising nature.…”

“…Previously conducted analytical and laboratory studies with the participation of the authors allowed an objective approach to the choice of research directions. Field experiments and significant implementation of the developed technical means and technologies at the facilities of the deposits of the Urals and the Volga region confirmed the correctness of the chosen directions [11][12][13][14][15][16].…”

Pulsator for cleaning from asphaltene-resin-paraffin deposits

“…A ground-based pulsator equipped with a linkage mechanism is designed to clean surface pipelines from ARPD using hydrodynamic waves [13][14].…”