Method and apparatus for orientating core sample and plug remove

Details Method and apparatus for orientating core sample and plug remove Method and apparatus for orientating core sample and plug remove

1991-01-30

1992-04-21

Novosed, Stephen J.

Boring or penetrating the earth

With signaling, indicating, testing or measuring

Providing identifiable indication of core position in situ...

166255, 324350, 324351, E21B 2516, E21B 47026, E21B 4902

Patent

active

051058944

ABSTRACT:
A method and apparatus for determining the location in space of a formation sample is set forth. This involves a tool which is typically run on a wireline in a well, the tool supporting orthogonal positioned magnetometers and similar orthogonal accelerometers for measuring movement of the tool along the well borehole whereby components of the magnetic field and gravity field are measured to enable determination of the well in space. The tool supports an axially positioned centrally located core cutting apparatus and a laterally projecting plug cutting apparatus; scribe marks formed on the formation samples orient the samples relative to the tool and the tool is located in space from the above mentioned measurements so that the position of formation samples can be determined.

REFERENCES:
patent: 2628816 (1953-02-01), Mahan
patent: 2810548 (1957-10-01), Martinez
patent: 3241623 (1966-03-01), Martinez
patent: 3324563 (1967-06-01), DeGast
patent: 4955438 (1990-09-01), Juergens et al.
patent: 5014008 (1991-05-01), Flowerdew

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