EQUIPMENT FOR REPAIR OF CASING STRINGS AND ELIMINATION OF WATER INFLUX DURING OPERATION OF DIRECTIONAL AND HORIZONTAL GAS-OIL WELLS Russian patent published in 2024 - IPC E21B29/10

Abstract RU 2828707 C1

FIELD: oil and gas industry.

SUBSTANCE: invention relates to methods of repair of casing strings of inclined and horizontal gas and oil wells. Equipment includes one or more anchor units in the form of pipes, made with possibility of their radial expansion, connected in series by means of threaded connections. On the outer surface of the pipes there are elastic rubber sealing rings in alternation with Teflon inserts and metal cuffs with copper sputtering, located on both sides of elastic rubber sealing rings.

EFFECT: gas tightness of repaired casing string and elimination of water influx in places of casing string damage is provided.

2 cl, 2 dwg

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RU 2 828 707 C1

Authors

Yuldashev Ramil Radikovich

Dates

2024-10-16—Published

2023-11-17—Filed