. Deep borehole surveys and problems. Boring. 172 DEEP BOREHOLE SURVEYS AND PROBLEMS does not render the direction of deviation but the amount only. It is well suited to rapid, simple and fairly accurate records for working or completed wells. It is essentially a pendulum or plumb-bob recording device in a cylindrical watertight housing. The lower end of this housing is externally threaded and it is attached to the bit or core catcher. The original Kinley instrument^ was lost in a Texas company well. Here the recording unit (Fig. 112) includes a support frame B with an upturned arm on a â Ay r
. Deep borehole surveys and problems. Boring. 172 DEEP BOREHOLE SURVEYS AND PROBLEMS does not render the direction of deviation but the amount only. It is well suited to rapid, simple and fairly accurate records for working or completed wells. It is essentially a pendulum or plumb-bob recording device in a cylindrical watertight housing. The lower end of this housing is externally threaded and it is attached to the bit or core catcher. The original Kinley instrument^ was lost in a Texas company well. Here the recording unit (Fig. 112) includes a support frame B with an upturned arm on a â Ay r^2° 400 ^X 350//^^ / /^ 580/ \s30 5^550 \io Mo A/ \ '/ v 20 0 20 40 60 80 100 â1â1 1 1 250 ~y Fig. 111.âA Rumanian borehole surveyed by the Denis-Foraky teleclinograph in 1925; plan of the hole No. 8, "Steaua Romana" Fig. 112. vertical plate on its upper end. The lower end of this plate has an inturned arm for mounting a rewind mechanism. Ball bearings A on the inturned arm at the lower end of the plate assist the upper ball bearings A to hold the recording 1 Smiley, T. F., Oil Gas Jour., p. 44, Apr. 25, Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Haddock, M. H. (Marshall Henry). New York, McGraw-Hill
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