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2 026 974

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IPC

(21) (22)

Application

4955320/03, 1991-06-28

(22)

Actual filing date

1991-06-28

(45)

Published

1995-01-20

(72)

Inventor

Mirakjan V.I.Ioanesjan V.R.Lapiga E.Ja.

(73)

Holder

Tovarishchestvo S Ogranichennoj Otvetstvennost'Ju Nauchno-Proizvodstvennaja Firma Tekhnologija I Kontrol' Skvazhiny"

BOTTOM HOLE SELF-CONTAINED INDICATOR FOR WELL INVESTIGATION Russian patent published in 1995 - IPC

Abstract RU 2026974 C1

FIELD: drilling equipment. SUBSTANCE: bottom hole self-contained indicator for well investigation has tubular body 1 accommodating tubular member 3 installed with clearance in cross-section. One end of tubular member 3 has seat 6. Located in hollow of member 3 is container 7 accommodating measuring unit and information recorder. EFFECT: increased service life of indicator and higher accuracy of measurement of bottom hole parameters. 2 dwg

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RU 2 026 974 C1

Authors

Mirakjan V.I.

Ioanesjan V.R.

Lapiga E.Ja.

Dates

1995-01-20—Published

1991-06-28—Filed

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