FIELD: soil or rocks drilling.
SUBSTANCE: group of inventions relates to the field of downhole tools. Device for detecting gamma radiation in a borehole comprises a scintillator crystal and a photomultiplier tube disposed in either a single or individual housings. Housing is bordered by springs configured to dampen axial vibrations. Housing may be dampened from lateral vibrations by a lateral shock reducer on a sleeve that circumscribes the housing.
EFFECT: higher resistance to mechanical shocks and vibrations during drilling operations in a well.
35 cl, 4 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| DOWNHOLE GAMMA DETECTOR | 2013 |
|
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|
RU2572642C1 |
