Geometrical instruments – Indicator of direction of force traversing natural media – Borehole direction or inclination
Patent
1984-11-05
1986-04-01
Little, Willis
Geometrical instruments
Indicator of direction of force traversing natural media
Borehole direction or inclination
33308, 33311, 33313, E21B 4722
Patent
active
045788715
ABSTRACT:
The inclinometer comprises a single module for measuring the inclination and azimuth of a bore, such as that of an oil well. The single module contains a removable cassette with an inclination measurement means disposed on one side thereof and an azimuth measurement means on the opposite side so as to provide a measurement recording on the substrate of the recording means. An optical assembly is provided within said module for the inclination and azimuth measurement means. Further, a power source is disposed within said module. The module has an inner and outer housing means being provided within said inner housing for providing a rotational movement thereto.
In accordance with another embodiment, the inclinometer comprises a first module being a power module for supplying power to the components of the second module. The second module has similarly an inner and outer housing, a motor for providing a rotatable movement to the inner housing, said motor connected to the power source through an optical sensor provided with the inclination measurement means. The second module has the inclination measurement means and an azimuth measurement means, each having an optical assembly. A cassette is provided within said second module. Alternatively, a memory and storage circuit is provided and, in which instance, an optical assembly is not required.
REFERENCES:
patent: 2103235 (1937-12-01), Conrad
patent: 3789510 (1974-02-01), Richter, Jr. et al.
patent: 3911590 (1975-10-01), Litchfield et al.
patent: 4040189 (1977-08-01), La Coste
patent: 4393598 (1983-07-01), Powell et al.
patent: 4433491 (1984-02-01), Ott et al.
Little Willis
Niyogi B. K.
Oil & Natural Gas Commission
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