A075 Gamma Tool 33mm
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Tool Description
These tools detect natural gamma radiation emanating from the subsurface rocks. Gamma rays are very high frequency electromagnetic radiation and are derived from the radioactive decay of various elements. In boreholeapplications the most common radioactive elements are radio isotopes of K, Th, and U.
Gamma Ray Log Applications
Gamma ray logs provide a clear indication of variations in lithology and also accurately define bed thickness. Shaly bands are obvious and can be readily identifies because clay content results in a high gamma count.The gamma ray log is also used for identification of coal as coal typically exhibits a low count rate. In this application a high sensitivity gamma tool generally provides best results.In petroleum applications the higher the gamma activity of the clay size fraction is due to the potassium contained in clay minerals, fine micas and feldspars.
This is not only useful information in its own right, but is a crucial parameter in the accurate interpretation of density and neutron logs.Gamma ray logs are an obvious choice in Uranium exploration and development. The relationship between uranium content and count rate may be used so that ore grades may be determined in the borehole.Groundwater and engineering applications utilise the gamma ray for lithology indications and strata thicknesses as well as clay content, to determine permeability and rock strength. A gamma can be incorporated into almost every tool combination.
| FEATURES |
| Convenient and simple to use |
| Small-volume scintillation detector for high levels of radioactivity |
| MEASUREMENTS |
| Natural Gamma (Total Count) |
| APPLICATIONS |
| Coal, Uranium |
Mineral detection |
| OPERATING CONDITIONS |
| Borehole type |
Borehole type: cased or open-hole, water-filled |
| TOOL SPECIFICATIONS |
| Diameter |
33 mm / 1.299 in |
| Length |
1130 mm / 44.488 in |
| Weight |
4 kg / 8.818 lb |
| Min. Temperature |
0ºC / 32 ºF |
| Max. Temperature |
70ºC / 158ºF |
| Max. Pressure |
21 000 kPa / 3000 psi |
| Tool Voltage Required |
30 VDC |
| Tool Current Required |
43 mA |
| Communications |
Pulse |
| Cable Conductors Required |
1 or 4 |
| SENSORS |
| NATURAL GAMMA |
NaI Scintillation Crystal |
| Crystal Size |
12.7 mm x 44.45 mm / 1/2 in x 1 3/4 in |
| Calibration |
Calibration Pits / API Jig |
| SHIPPING SPECIFICATIONS |
| Length |
1300 mm / 51.181 in |
| Width |
70 mm / 2.756 in |
| Height |
70 mm / 2.756 in |
| Weight |
6 kg / 13.227 lb |
| SALES INFORMATION |
| Click here to contact sales for more information |
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