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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.


Fully downhole digital
Quick automatic setup, unique tool identification
Designed for one-man operation
Can be customized to your specific needs


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: 85C (185F)
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

Part #:339000B


9320 Product Description

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