Малое предприятие по обеспечению внешнеэкономической деятельности минерально-сырьевого сектора России "Росгеомин"
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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
SU4373719/25A1988-02-031988-02-03Method for borehole gravitation logging
SU1574061A3
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Method for making sieismic indicating curve of varying amplitude and phase on the basis of the measuring curves of sinusoidal character or irregular running off, taken up from a variable specific to seismic effects, in particular, at geological surveys