The Full Wave Sonic tool contains a single transmitter and dual
receiver to record formation travel times. The full wave form data is
also recorded simultaneously, along with near and far travel times,
borehole-compensated delta time, calculated sonic porosity,
receiver gains, near/far amplitudes and natural gamma. The sonic or
acoustic log uses the basic principle of sound waves traveling
through a media. The Century sonic system uses a single transmitter
and dual receiver system for recording the travel times of the
formation. The receivers are spaced approximately 2 and 3 feet,
from the transmitter. Therefore, a 0.3 m (1 ft.) calculation can be
made to measure this interval transit time. Additionally, the 9320 can
be upgraded for cement bond logging, by adding a casing collar
locator (see below for link).
FEATURES
Properties Measured
1. Natural Gamma:
Mechanical Centralizer
2.5 x 10.2 cm
(1.0 x 4.0 in.)
NaI Scintillation
Offset: 22.9 cm (9 in.)
2. Transmitter:
24 khz. piezoelectric
Offset: 170.2 cm (67 in.)
3. Acoustic Isolator:
Thermoplastic polyester
Offset: N/A
4. Near Receiver:
(2 ft.) spacing
Offset: 231.1 cm (91 in.)
5. Far Receiver:
(3 ft.) spacing
Offset: 266.7 cm (105 in.)
Length: 283.2 cm (111.5 in.)
Temperature: 85 C (185 F)
Diameter: 50.8 mm (2.0 in.)
Pressure: 175 kg/cm2 (2500 PSI)
Weight: 22.7 kg (50 lb.)
Logging Speed: 9 m/min.@0.06 SI
(30 ft./min. @ 0.2 ft. SI)
Tool Voltage Required: 85 VDC
TOOL#: 9320
