Product Name:NET-ORIENTED DIGITALIZED SONIC TOOL, NDST
Type:
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NDST
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producer:
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Huanding Energy Services
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Description:
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Its circuits communicate with telemetry/GR tool by Ethernet, receive the command from NTGR tool, digitalize the received waves, and up transmit them to the NTGR tool. Sonic array adopts one transmitter and five receivers.
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FUNCTIONCOMPOSITIONTECHNICAL SPECIFICATIONSFILED EXAMPLE
Its
circuits communicate with telemetry/GR tool by Ethernet, receive the command
from NTGR tool, digitalize the received waves, and up transmit them to the NTGR
tool. Sonic array adopts one transmitter and five receivers. ReceiversR5, R4, R3, R2 are used to measure sonic speed,
and R5 and R1 measure CBL and VDL to complete borehole compensated sonic△T measurement, providing sonic speed curve for formation
comparison, calculating formation porosity. It can also be used in the cased
hole for sonic amplitude logging to provide quality information of cement
bonding, the CBL.
It
is composed of electric circuit and sonic sonde(3’-6”-6”-6”-6”-6”). The circuit housing
is made of PH stainless steel.
Temperature Range: -25 -175℃
Max. Pressure: 140MPa
Storage Temperature: -40-70℃
Shock :
50g3D(11ms)
Vibration: 5g 3D(10~60Hz)
△Tmeasurement Range: 40~198μs/ft
△TmeasurementAccuracy: △T
is ±2μs/ft (in the range: 40~60μs/ft)
△T
is ±3μs/ft (in the range 60~198μs/ft)
Vertical
Resolution: 600mm
Investigation
Depth: 100mm
Waveform Sampling
Interval: <= 2μS
Waveform Sampling
Length: > 2mS
Max. Logging Speed: 1800m/h
Fluid property and caliper: oil-base mud or water-base mud
Borehole size: 120-246mm
Spacing3”(0.92m),
Interval6”(15.24cm)
Resonance frequency of T/R transducer: 16K~18KHz
Power Supply: 250VAC, 50~60Hz
Max. Logging Speed: 1800m/h
Length: 3900mm