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Natural Gamma Ray Tool

Brief Introduction:

GR utilizes crystal detector to detect the natural radiation gamma rays in the formation, through signal processing, the total natural gamma value is obtained, providing a gamma curve.

Large size photomultiplier tubes and sodium iodide crystals are used to reduce statistical errors and make the metrical precision improved clearly.   

Serial number

Product code

Material coding

Name

Model

Maximum temperature

Greatest pressure

Outer diameter

Length

Quality

Measuring range

Measurement accuracy

Repeatability error

Wellbore range

Logging speed

1

37020105

10002561490

Natural Gamma Ray Tool

GR6401

175℃

140Mpa

90mm

1200mm

28kg 

01500API

±5%(API:180)

±5% (API:180)

115 ~ 355mm

900m/h

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