Method of successively opening-out and treating productive forma

Details Method of successively opening-out and treating productive forma Method of successively opening-out and treating productive forma

1976-02-20

1977-09-13

Novosad, Stephen I.

Wells

Processes

Placing fluid into the formation

166222, 166298, E21B 4326

Patent

active

040475697

ABSTRACT:
In the disclosed method of successively opening-out and treating formations, nozzles are firmly pressed against the casing walls in opposition to the selected area of forming a hydraulic fracture, each nozzle having a through passage of a diameter ensuring that at a constant specified flow rate of a fluid with an abrasive filler through the passage there will be built up a pressure sufficient for hydraulic fracturing of the formation. The abrasive-laden fluid is then pumped through the nozzles at the constant flow rate at a pressure sufficient for making a perforation in the casing wall, the pressure being not less than that required for hydraulic fracturing of the formation, until a perforation of a diameter substantially equal to that of the through passages of the nozzle is formed. With the perforation made, the rate of flow of the fluid with the abrasive filler, pumped through the nozzles, is varied to produce a constant pressure within the bed formation, not less than the pressure required for hydraulic fracturing of this formation.

REFERENCES:
patent: 2302567 (1942-11-01), O'Neill
patent: 2758653 (1956-08-01), Desbrow
patent: 2851109 (1958-09-01), Spearow
patent: 3058521 (1962-10-01), Gilbert
patent: 3130786 (1964-04-01), Brown et al.
patent: 3224506 (1965-12-01), Huitt et al.
patent: 3393736 (1968-07-01), Goodwin

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