ISGRT-AA
Gamma/Telemetry

ISGRT-AA
Spectral Gamma

Ray High Speed Telemetry \Rm Tool


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ISGRT-AA
Spectral Gamma
Ray/ Telemetry w/ Rm Tool Presentation

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Part No: 12000 4605

DESCRIPTION

The ISGRT-AA measures total natural gamma ray response and volumetric concentrations of potassium, uranium, and thorium. The tool acts as a downhole telemetry controller for all TTI tools.  The SGRT utilizes TTI’s new High Speed Telemetry system that enables the addition of TTI’s advanced Integra Tool string.
 
This tool must be at the top of the tool stack unless you are using an Auxiliary Measurement Tool, in which case the AMT must be at the top of the tool stack.
 
Real-time mud resistivity and borehole temperature measurements provide improved borehole environment corrections.  Three axis accelerometers also provide Z-axis correction for all sensors in the TTI tool string.

SPECIFICATIONS

Parameters
English
Metric
Pressure
20,000 PSI
1,379 bar
Temperature
350° F
177° C
Weight
89 lbs
40.4 kg
Tool Length with RM
7.60 ft.
2.32 m
Transport Length1 with RM
9.42 ft.
2.87 m
Tool OD
3.625 in
9.2 cm
1 From end of top thread protector to end of bottom thread protector.

COMBINABLE WITH

The ISGRT-AA works as a downhole controller for all tools as part of the Integra Logging System.

REMARKS

The SGRT-AA uses an unregulated 50-microcurie (µCi) Americium 241 stabilization source for spectrum and High Voltage stabilization.


LOGGING PARAMETERS

Parameter
English
Metric
Vertical Resolution
1 ft
30.48 cm
Depth of Investigation
6-12 in
15-30 cm
Measurement Range:
Low
0 API
High
400 API
Maximum Logging Speed
15 ft/min
5 m/min
Repeatability
±5% at 100 API
Borehole Ranges:
Minimum
5.5 in
14 cm
Maximum
22 in
56 cm
 

BOREHOLE ENVIRONMENT

Open-hole, cased-hole, fluid-filled, or air filled.
Master calibration for this tool is completed with reference to the API test pits in Houston, Texas, USA.
Field verification uses an optional thorium blanket for calibration. For information on see Parts, Test, Calibration and Accessory equipment, contact your Tucker Technologies Technical Sales Representative for correction charts.
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