| FEATURES |
| Sensitive X-Y caliper |
| Continuous orientation log works for all borehole inclinations |
| Optional natural-gamma measurement |
| MEASUREMENTS |
| X Caliper |
| Y Caliper |
| Borehole azimuth |
| Borehole deviation |
| Borehole volume |
| Borehole drift |
| True vertical depth (TVD) |
| Natural gamma (optional) |
| APPLICATIONS |
Water
Engineering
Minerals |
Borehole diameter in two axes
Borehole break-out for stress analysis
Borehole verticality
Borehole volume calculation
Cracks, fissures and casing defects
Distinguishing hard and soft formations
Correction of other logs for hole size effects |
| OPERATING CONDITIONS |
| Borehole type |
open/cased, water/air-filled |
| Centralisation |
recommended, non-magnetic centralisers required |
| SPECIFICATIONS |
| Diameter |
60mm |
| Length |
3.5m (two sections) |
| Weight |
40kg |
| Max. temperature |
70ºC (extended range available) |
| Max. pressure |
20MPa (extended range available) |
| Caliper Range |
75mm to 700mm |
| Accuracy |
+/-1% at max. extension |
| Inclination |
Range: 0 to 180º
Accuracy: +/-0.25º (Higher accuracy available to special order) |
| Azimuth |
Range: 0 to 360º
Accuracy: +/-2.5º (Higher accuracy available to special order) |
| Natural-gamma detector |
50mm x 25mm NaI (Tl) scintillation crystal (larger sizes available) |
| SALES INFORMATION |
| Probe |
| 25 035 000 |
Borehole-geometry probe with caliper calibrator |
| 25 036 000 |
includes natural gamma |
| Accessories |
| 21 025 000 |
Centraliser 90 - 180mm (non-magnetic) |
| 21 026 000 |
Centraliser 180 - 260mm (non-magnetic) |
| 21 027 000 |
Centraliser 260 - 342mm (non-magnetic) |
| 21 028 000 |
Centraliser 342 - 472mm (non-magnetic) |
| 20 070 000 |
Natural-gamma API calibrator without source |
| 30 010 000 |
3.7MBq 137Cs source for natural gamma calibrator |
