Data acquisition module and cable connector

Abstract

A seismic data acquisition module comprises two antennas 51,52 and a communication circuit for data communication (e.g. for seismic data, quality control data, GPS data). The module has a body 2 having an upper rigid shell 40. The shell has two arms 41,42, one or both of which is / are connected to a handle 44. The antennas are located within the interior of the arms which provides them with mechanical protection. The arms and handle may be made in one piece with the housing 43 of the upper rigid shell 40. The antennas may be formed on printed circuit boards 71,72. The module may have a foot 31 with a planting point for positioning in the ground. Also provided is a cable connector 100 which can be fixed to the module. The cable connector comprises a part 123 which fastens to a corresponding part 413,432 on the shell, and a cable 102. The connector also includes an insulating part 101 which includes a third antenna which communicates with one or other of the antennas in the arms.

Description

Technical field [0001] The invention relates to a data acquisition module. The field of the invention is seismic sensors for petroleum exploration of subsoil. Background technique [0002] Each individual seismic module essentially includes, in a known manner, a seismic measurement value input device, which is intended to be connected to at least one seismic sensor for measuring at least one seismic amplitude of the earth. [0003] The seismic sensor measures the artificial seismic response waves reflected by different layers of the subsoil to continuously send predetermined artificial seismic inquiry waves (earthquake) from a source controlled by the operator to the surface of the earth. [0004] The seismic sensor is, for example, a geophone or an accelerometer, which has a sensitivity sufficient to measure response waves reflected in the earth. [0005] Following the earthquake, each module obtains the seismic data corresponding to the seismic sensor. If necessary, these seismic ...

AI Technical Summary

Problems solved by technology

Therefore, each acquisition module must have its own power supply, most often an on-board battery and the possibility of connecting another additional battery, which are expensive

For this reason, wireless acquisition modules are more expensive than wired seismic acquisition modules that require only 1 battery for about 50 seismic sensors

[0013] The second restriction concerns the wireless transmission of data (seismic and other) on a frequency band that must be unused

[0022] In addition, there is the possibility to use antennas with the greatest diversity possible to suit preferred ranges and frequency bands

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