SCINTILLATION BLOCK FOR WELL LOGGING INSTRUMENT Russian patent published in 2008 - IPC G01T1/20 

FIELD: geophysical research of wells using gamma logging method, possible use in gamma logging modules included in composition of complex well logging instruments.

SUBSTANCE: the scintillation block for well logging instrument contains scintillation unit and electronic module, mounted resiliently in rigid body, fitted with a washer and supporting bushing, where scintillation unit contains gamma-radiation detector, mounted in supporting shock absorber, made in form of bushing of elastic material, fitted with circular shelves on both sides, and electronic module contains photo-multiplier and divider. Longitudinal grooves, positioned evenly along a circle, are made on external and internal cylindrical surfaces of supporting shock absorber, and divider of electronic module contains following components, made of electro-isolating material: hollow cylindrical leg with flange, bushing, provided with a flange, a cap and electronic circuit, where flanges are provided with apertures, positioned evenly along a circle, and external cylindrical surface of bushing is provided with ribs, positioned between apertures, wherein contacting electro-conductive sockets are mounted. In second variant of realization of scintillation block, rigid body is made of fiberglass plastic, reinforced with current-conductive wires, which are provided with electric connectors.

EFFECT: increased reliability of operation of gamma logging module due to increased vibration strength and impact strength of units of scintillation block.

2 cl, 2 dwg