METHOD FOR FORMATION OF PACKINGS IN MULTIPLE PERFORATION CHANNELS IN CASING STRING OF WELL BORE Russian patent published in 2010 - IPC E21B43/04 E21B43/26 

Abstract RU 2405920 C2

FIELD: oil and gas production.

SUBSTANCE: method includes the following stages: a) formation of plug from sealing material of solid particles in casing string in well bore, besides plug closes at least one perforation channel in casing string; b) formation of plug from the first packing material of solid particles at least in one perforation channel arranged over the plug in casing string; c) removal of at least upper section of plug, in order to open at least one perforation channel in casing string, which was previously closed by at least upper section of plug; and (d) formation of packing from the second packing material of solid particles, at least in one perforation channel, open as a result of removal of at least upper section of plug, besides the second packing material of solid particles may be identical with the first packing material of solid particles or different from it.

EFFECT: increased efficiency of method.

24 cl, 10 dwg

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RU 2 405 920 C2

Authors

Ist Lojd Eh. Ml.

Dates

2010-12-10Published

2006-07-20Filed