G - Physics – 01 – B
Patent
G - Physics
01
B
354/25
G01B 15/00 (2006.01) E21B 19/20 (2006.01) E21B 47/04 (2006.01)
Patent
CA 1187180
ROYCE G. ROBERTS METHOD AND APPARATUS FOR TALLYING PIPE ABSTRACT OF THE DISCLOSURE Tubular goods, such as drill pipe and production tubing, is measured while going into and coming out of a borehole. An electronic beam is directed from a transmitter and is detected by a distance measuring receiver. The beam commences at a known station relative to one end of a pipe suspended in the derrick; and is received at a second station which is indexed respective to the traveling block of the drilling rig. Another beam measures the 1 position of the other end of the pipe respective to the traveling block. These measurements enables the length of each stand of pipe to be accurately ascertained while the pipe is held suspended with- in the derrick at a location above the derrick floor. Electronic circuitry, including a digital instrument, automatically computes the length, displays the length in feet and tenths on a digital readout, records the length on a print-out tape, and incorporates an accumulative memory register. This enables joints or lengths of pipe to be tallied, one after another, and the lengths are auto- matically calculated while accumulative totals are displayed and recordrd. - 1 -
427708
Borden Ladner Gervais Llp
Roberts Royce G.
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