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Hydro-sand perforation of wells

followed by hydraulic fracturing (hydraulic fracturing+fracturing)

Increases the efficiency and variability of hydraulic fracturing:

- A more effective alternative to "blind" fracturing, where uncontrolled fracture growth occurs in the areas of least resistance. In hydraulic fracturing+fracturing, fractures are initiated by targeted fracture initiation from the washed out caverns in the bottomhole cavity, which makes the process more controllable;

- hydraulic fracturing of up to 300 tons per well per 1 SPO;

- high-speed linear gel hydraulic fracturing over 5m3/min;

- fracturing with cross-linked gel with concentration over 1300 kg/m3;

- fracturing with proppants of large fractions, over 12/18, including RCP;

- possibility of injection of acids, HSS and other chemical compositions;

- possibility of azimuthal-oriented hydraulic fracturing according to regional formation stress.

Addressably stimulates the stratum:
- In intervals between couplings and fracturing ports;
- in filters eq/q;
- in intervals of curvature set ecc;
- below zones of ecc constriction;
- near zones of VNK, HNK;
- in multiple intervals for 1 (one) SPO;
- in places of layering of production columns.
Reduces work time

- perforation and fracturing of several reservoir intervals in a single tripping operation;

- well preparation consists of flushing and wellbore templating;

- wellhead tie-in as for standard hydraulic fracturing;

- there is no need to cut off working intervals of the well (backfill, packer plugs);

- no normalization of the bottomhole after stimulation is required (wellbore flushing after hydraulic fracturing is carried out through a GPP perforator).

Safe work technology
- preserves the integrity of the buried cement due to the absence of impact;
- pressure on the production string during hydraulic fracturing does not exceed the pressure of its pressure test;
- in case of unplanned "STOP" trend during hydraulic fracturing, it is possible to switch to flushing without stopping the hydraulic fracturing fleet pumps.

Equipment water-sand perforating equipment

Made on
Tilda