Description
The Telemetry Gamma Ray & Casing Collar Locator (TGC003) is a combined Gamma Ray & CCL tool with a Telemetry Control Unit which provides a passive measurement of gamma radiation by means of a Sodium Iodine Scintillation Detector and identifies changes of metal thickness by means of a collar locator. The Telemetry Control Unit is the communications control center for the logging system. The tool controls the collection of data from the tools below and packages it for the transmission to the surface system.
Ratings & Dimensions
Max temperature |
350°F (177°C) |
Max pressure |
15,000 psi (103.4 mPa) |
Outer diameter |
2.75 in (70.0 mm) |
Length |
47.69 in (1211.0 mm) |
Weight |
44.6 lb (20.2 kg) |
Measure Points |
Gamma Ray: 8.43 in (214.0 mm) Casing Collar: 39.92 in (1014.0 mm) |
Materials |
Corrosion resistant materials used throughout |
Hardware Characteristics
Combinability |
All HD tools (RADii, iQ, PL, RAS, etc) |
Acquisition Mode |
Real-time |
TCU Electrical Specifications
Voltage |
300 V DC |
Current |
Load dependent |
Tool bus rate |
500 kbps |
Uplink rate |
150 kbps |
Downlink rate |
16 kbps |
Gamma Ray Measurements
Range |
1-65,000 cps |
Resolution |
1 cps |
Accuracy |
10% |
Sensitivity |
(nominal) 1 count / API |
Version Control: 2021.11.11
On-line specifications are for REFERENCE ONLY and subject to change without notice. DO NOT USE FOR FIELD OPERATIONS.