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Spectral Gamma Ray Tool

Spectral Gamma Ray Tool

Spectral Gamma Ray Tool SITAN STGN89-200D spectral gamma ray tool is an instrument for recording the distribution of gamma ray energy in the formation. SITAN STGN89-200D spectral gamma ray tool can be used to calculate the content of potassium, uranium and thorium in stratigraphy, and also can...

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Product Details

Spectral Gamma Ray Tool

SITAN STGN89-200D spectral gamma ray tool is an instrument for recording the distribution of gamma ray energy in the formation. SITAN STGN89-200D spectral gamma ray tool can be used to calculate the content of potassium, uranium and thorium in stratigraphy, and also can be used to determine the lithologic characteristics of reservoirs, the content of clay minerals, analyze the sedimentary environment and so on. Meanwhile, SITAN STGN89-200D spectral gamma ray tool has obvious effect in identifying high uranium reservoirs in strata.

 

Features

1. Only the Pre-amplifier circuit, photomultiplier tube and crystal are left in the thermos flask, and the heat circuit is moved to the outside of the flask, so that there is basically no heating element in the thermos flash. The high temperature tolerance time of spectral gamma ray tool increased by 50%.

2. Adopt of imported original crystal and photomultiplier tubes.

3. Fine calibration improves repeatability and consistency of spectral gamma ray tool, and the curve meets the CSU standard.


Specification

Max pressure

140MPa(20,305psi)

Max temperature

175℃(347°F) 2h

OD

92.1mm (3.625 in)

Min hole

120.7mm (4.75in)

Detector type

2in×12in CsI (Na)

Sample rate

1 point/0.1m

Logging speed—spectrum

3m/min 9m/minSPL11

GR: 9m/min

 

 

Measure range

GR:0~2500 API

K:0~100 %

Th:0~700 ppm

U:0~250 ppm

Accuracy

GR:±3%

K, U, Th: ±4%

BUS mode

Manchester code M2M5


Case study

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