Boring or penetrating the earth – With signaling – indicating – testing or measuring – Tool position direction or inclination measuring or...
Patent
1982-01-05
1984-05-01
Pate, III, William F.
Boring or penetrating the earth
With signaling, indicating, testing or measuring
Tool position direction or inclination measuring or...
73151, 175 61, E21B 706
Patent
active
044455780
ABSTRACT:
An apparatus is described whereby the side force on a drill bit can be measured during drilling operations and transmitted to the surface where it can be used in predicting trajectory of the hole and taking corrective action in the drilling operation. A downhole assembly using a downhole motor is modified to include means to detect the side thrust or force on a bit driven by the motor and the force on the deflection means of the downhole motor. These measured forces are transmitted to the surface of the earth during drilling operations and are used in evaluating and controlling drilling operations. Means are also provided to measure magnitude of the force on a downhole stabilizer.
REFERENCES:
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patent: 3713089 (1973-01-01), Clacomb
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"Side Cutting Characteristics of Rock Bits and Stabilizers While Drilling" SPE, 7518, .COPYRGT.1978, Millhiem et al.
"Behavior of Multiple Stabilizer Bottom Hole Assemblies" Oil and Gas Journal, Jan. 1, 1979, pp. 59-64.
Brown Scott H.
Hook Fred E.
Pate III William F.
Standard Oil Company (Indiana)
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