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2 026 962

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C1

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IPC

(21) (22)

Application

4917231/03, 1991-03-05

(22)

Actual filing date

1991-03-05

(45)

Published

1995-01-20

(72)

Inventor

Chernej Eh.I.Pisarenko V.G.Khershberg B.L.Markov A.E.Chernej O.Eh.

(73)

Holder

Chernej Ehduard Ivanovich

DEVICE FOR GAS PRODUCTION Russian patent published in 1995 - IPC

Abstract RU 2026962 C1

FIELD: mining. SUBSTANCE: device for gas production includes inner string for supply of working agent, outer perforated string, rock cutting tool with central channel, outer isolating ball with upper and lower holes through which outer string passes. Ball is secured by coupling above perforation of outer string in the interval of lower end of pipe inner string. Ball upper half has movable sealing case of flexible heat-conducting material, and ball lower half is coated with abrasive material. EFFECT: conversion of gas into free state in development of gas-hydrate fields on ocean bottom. 1 dwg

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RU 2 026 962 C1

Authors

Chernej Eh.I.

Pisarenko V.G.

Khershberg B.L.

Markov A.E.

Chernej O.Eh.

Dates

1995-01-20—Published

1991-03-05—Filed

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