Sub-bottom Profilers

Dura-Spark UHD 400+400

Sparker Seismic Sound Sources - Single (40/200/240/400 tips) And Double Deck Options

The Dura-Spark UHD and UHD 400+400 have been designed to provide a stable, repeatable sound source for sub-bottom geophysical surveys. The long-life, durable electrodes produce a consistent pulse signature and keep operational maintenance to a minimum. This provides increased survey efficiency and equipment reliability as the sparker tips rarely need replacement.

applied acoustics

Great Yarmouth, GB

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Description

The Dura-Spark UHD has been designed to provide a stable, repeatable sound source for sub-bottom geophysical surveys. The long life, durable electrodes produce a consistent pulse signature and keep operational maintenance to a minimum. This provides increased survey efficiency and equipment reliability as the sparker tips rarely need replacement.

The single deck Dura-Spark consists of 3 or 5 arrays of 80 tips allowing the operator to tune the source from the vessel to their application. This flexibility together with selectable source depth allows the source to be used in both shallow and deep waters. The typical operational bandwidth of the Dura-Spark UHD is 300Hz to 1.2kHz. When coupled with the CSP-Nv Seismic Power Supply the system offers 2000J/s peak discharge rate, as well as industry leading design and safety standards.

Newly introduced the Dura-Spark UHD 400+400 consists of 2 decks of 400 tips that allow the operator to tune the source from the vessel to its application. Each deck can be fired independently by its seismic power supply, in flip flop mode, combined with fire delays or a split fire delay. Utilising the fire delay functionality the signatures from the 2 decks can be combined to bubble form the sound source signature. This flexibility, together with selectable source depth, allows the sound source to be used for multiple seismic data gathering applications.

The typical operational bandwidth of the Dura-Spark UHD 400+400 is 300Hz to 1.2kHz. When coupled with the CSP-SNv Seismic Power Supply the system offers 4000J/s peak discharge rate, as well as industry leading design and safety standards.

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Specifications

Mode of operation: Platform type

Surface Towed

Operating System

Windows

Min. depth of operation [m]

5

Max. depth of operation [m]

1

Min. frequency [Hz]

250

Max. frequency [Hz]

1.5

Signal composition

Broadband

Power output [W]

2400

Max. resolution [m]

0.25

Max. penetration [m]

500

Max. pulse rate [Hz]

3

Max. pulse length [s]

0.0005

Dynamic range [dB]

226

Frequency

General: Product type

Sparker, Sub-Bottom Profiling System

Year of initial development

2018

Application

High Resolution

Max power consumption [W]

5000

Power type

AC

Transducer weight [kg]

130

Transducer length [m]

1.8

Transducer width [m]

0.66

Transducer height [m]

0.49

Components to be used in combination with product

CSP-Nv power supply + AH Series hydrophones, 400+400 CSP-Nv1250 power supply

Portability of logger

Desktop, Portable, Rack

Integration in work process: Remote operation

Y

Real time coupling to survey software

Y

Coupling to post-processing software

Y

Data Processing: Data displayed

Third party data acquisition system dependent

Main use

High and ultra-high resolution geophysical surveys, cable/pipeline/route surveys, geohazard survey, pre/post dredging, construction site survey (eg windfarm site) etc.

Data output

Third party data acquisition dependent

Formats

SEG-Y

Connections

Internal logging