is design for casing string cementing quality control, identification of annular filtering intervals, evaluation of perforation effect on a cement ring, hydraulic swabbing control.
Features and Advantages
• the tool is operated through a one-core cable of up to 6000 m in length, with computerized logging stations equipped with fast-acting analog-digital converters which allow to record the full wave picture (of GEKTOR type);
• the tool admits the conveyance to the investigation interval through the drill pipe (inner diameter 2.5″);
• the tool allows to measure elastic wave dynamic and kinematic parameters as well as acoustic noise and temperature.
|
Acoustic sonde formula |
I20.25I11.5P |
|
Centralizers |
lever-type |
|
Transmitter |
magnetostrictive, radial |
|
Receiver |
piezoceramic |
|
Transmitter inherent frequency, kHz |
20 |
|
Measurement range: interval travel time, microsec/m attenuation coefficient, dB/m noise period, microsec temperature, oC |
120÷600 from 36 30÷3000 0÷120 |
|
Max. hydrostatic pressure, MPa |
60 |
|
Max. operating temperature, oC |
120 |
|
Downhole dimensions, mm: diameter (without centralizers) length |
36, 42 2450 |
|
Used cables core number, pcs |
1 |
|
Weight, kg |
up to 12 |
At the request of the customer, the equipment can be made with a diameter of 48 mm.