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Noise Survey Tool – PTX – 1 3/8 in.

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SKU: 050-N1375-0000
  • Description

Description

The Noise Survey Tool is an analog output instrument designed to “listen” to downhole noise ranging from 200Hz to 6kHz. The tool has a 2 stage gain; high gain mode at 50 volts and low gain mode at 70 volts. The NST is a valuable aid for detecting noise caused by small gas leaks caused as bubbles percolate through the wellbore liquid, as well as turbulent flow caused by fluids flowing through tight restrictions in the well, or behind casing through cement or formation channeling.

Ratings & Dimensions

Max Temperature

350°F (177°C)

Maximum Pressure

20,000 psi (138 MPa)

Outer Diameter

1.38 in (35.1 mm)

Length

3.8 ft (1158.24 mm) 

Weight

8.0 lb (3.64 kg)

Min Csg/Tbg OD:

2.38 in (60.45 mm)

Max Csg/Tbg OD:

20.0 in (508.0 mm)

Measure Point

Acoustic Noise Signal: 8.76 in (222.5 mm)

Borehole Conditions

Borehole Fluids

Salt, Fresh and Oil

Tool Positioning

Centralized & Eccentralized

Logging Speed

Stationary

Hardware Characteristics

Sensor Type

Stacked Piezoelectric Crystals

Transmission Type

Analog Audio

Sample Rate

Continuous Analog 

Audio Range

Full Spectrum Audio

Combinability

Temperature | Casing Collar Locator

Measurements

Principle

Acoustic Noise

Range

1 to 2000 mV

Primary Curves*

200 Hz, 600 Hz, 1kHz, 2kHz, 4kHz, 6kHz

Secondary Curves

None

*Curves are surface generated.  Outputs based upon WarriorTM systems.


Version Control: 2022.02.15


On-line specifications are for REFERENCE ONLY and subject to change without notice. DO NOT USE FOR FIELD OPERATIONS.

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