PACKING DEVICE FOR ADDITIONAL CASING COLUMN Russian patent published in 2004 - IPC

Abstract RU 2232255 C1

FIELD: oil and gas extractive industry.

SUBSTANCE: device has body connected to additional column, stops, compacting element and moveable cylinder. The latter is provided with mounting bushing located on the inside, inner diameter of which is picked to match diameter of main ring-shaped recess of body of locking mechanism, which is mounted on lower end of tubing pipes lowered into additional casing column of tubing pipes and provided with additional ring-shaped recess, in which a bushing with conical cut in upper portion is mounted. In area of conical cut a stopping ring is placed, which interacts with ring-shaped recess on lower end of mounting bushing.

EFFECT: simplified construction, easy use and lower costs.

2 cl, 2 dwg

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RU 2 232 255 C1

Authors

Ibragimov N.G.

Fadeev V.G.

Gabdullin R.G.

Strakhov D.V.

Osnos V.B.

Dates

2004-07-10—Published

2003-04-03—Filed