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(19)

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1 574 061

(13)

(51)

IPC

(21) (22)

Application

4373719/25, 1988-02-03

(22)

Actual filing date

1988-02-03

(45)

Published

1995-07-20

(72)

Inventor

Isaev E.N.Demchenko V.F.

(73)

Holder

Maloe Predprijatie Po Obespecheniju Vneshneehkonomicheskoj Dejatel'Nosti Mineral'No-Syr'Evogo Sektora Rossii

METHOD FOR BOREHOLE GRAVITATION LOGGING Russian patent published in 1995 - IPC

Abstract SU 1574061 A3

FIELD: borehole gravitation logging. SUBSTANCE: method for borehole gravitation logging is realized by measurement of free fall acceleration by employing scheme (2n-1)-(2n)-(2n-1). Measurement results are used to determine the nonlinear component of gravity- meter drift caused by vertical temperature gradient in the given section of borehole, and true value of free fall acceleration is determined with consideration of linear components of gravity-meter drift. EFFECT: higher accuracy due to exclusion of effect of borehole vertical temperature gradient, and increased logging efficiency. 1 dwg

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SU 1 574 061 A3

Authors

Isaev E.N.

Demchenko V.F.

Dates

1995-07-20—Published

1988-02-03—Filed