| FEATURES |
| Short shipping length of disassembled
probe |
| Slim design for narrow boreholes |
| Rigid construction for effective
centralisation |
| Down-hole digitisation of waveform
data |
| VDL or wavelet (wiggle) display |
| Optional natural-gamma measurement |
| MEASUREMENTS |
| Formation velocity (slowness) |
| Shear (S) velocity (where shear
wave exists) |
| Full waveform |
| Time of first arrival (delta-t) |
| Amplitude of first arrival (CBL) |
| Integrated transit time |
| APPLICATIONS |
Water
Engineering
Minerals |
Lithology identification
Porosity
Rock strength and elasticity
Correction of seismic velocity
Fracture and permeability indication in hard rock
Location of poor or missing cement behind casing |
| OPERATING
CONDITIONS |
| Borehole type |
Sonic: open-hole, water-filled
CBL: cased-hole, water-filled
Centralisation: 2 essential |
| SPECIFICATIONS |
| Diameter |
47mm |
| Length |
3.62 |
| Max. section length |
1.62m (5.3ft)
Weight: 17kg |
| Max. temperature |
70ºC (extended range available) |
| Max. pressure |
20MPa (extended range available) |
| Transducer type |
23kHz piezoelectric |
| Spacing |
Tx-Rx1: 910mm;
Tx -Rx2: 1220mm |
| Waveform acquisition |
2ms with 4µs sampling |
| Down-hole gain |
0db to 42db (surface control) |
| SALES
INFORMATION |
| Probe |
| 25 084 000 |
Slim-hole sonic probe |
| Accessories |
| 21 030 000 |
Centraliser 90 - 180mm |
| 21 031 000 |
Centraliser 180 - 260mm |
| 21 032 000 |
Centraliser 260 - 342mm |
| 21 033 000 |
Centraliser 342 - 472mm |
