METHOD FOR EXPRESS DETERMINATION OF THE CHARACTERISTICS OF THE BOTTOMHOLE FORMATION ZONE APPLIED WHEN DEVELOPING THE WELL Russian patent published in 2018 - IPC E21B47/06 E21B47/10 E21B43/25 

FIELD: measuring equipment; mining.

SUBSTANCE: invention relates to the field of well testing, and in particular to a method for the rapid determination of the filtration characteristics of the well bottomhole zone, while simultaneously combining the processes of well development and hydrodynamic research. Method of express-determination of the characteristics of the bottomhole zone used in the development of wells includes reducing the pressure below the reservoir during development. Measurement of well parameters, on the basis of which the filtration characteristics of rocks in the bottomhole formation zone are calculated. At the same time, mastering by swabbing is carried out after carrying out geological and technical measures. Well swabbing is combined with the research by the express method, carried out using a depth-measuring complex (DMC), logging in the on-line mode of the bottomhole pressure during the descent and ascent of the swab basket, and information on the pressure measurement is displayed in the form of a graph.

EFFECT: technical result consists in high accuracy of on-line registration of the bottomhole pressure during swabbing, which will allow to obtain a reliable curve of pressure change at the bottom of a well with its subsequent interpretation.

1 cl, 1 dwg