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Seismic prospecting data collecting system

A data acquisition system and seismic exploration technology, applied in the direction of seismic signal transmission, etc., to achieve the effect of simple construction, small track spacing, and large number of tracks

Inactive Publication Date: 2009-10-28
侯树麒
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a high-density seismic exploration data acquisition system to solve the problem of searching for oil and gas resources in complex geological bodies, ancient buried hills and their interiors, piedmont high and steep structural belts, and surface and underground conditions are complex. In the case of digitalization, further improve the resolution, signal-to-noise ratio, and fidelity of the data to truly describe underground geological phenomena

Method used

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  • Seismic prospecting data collecting system
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  • Seismic prospecting data collecting system

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Embodiment Construction

[0033] Specific embodiments of the present invention are described below in conjunction with accompanying drawing:

[0034] The design idea of ​​the present invention is: apply the widely used and very mature local area network management, control and data transmission technology, fast transmission speed, strong channel capability, each receiving point has its own IP address; digital detector is adopted , to avoid energy loss and high-frequency attenuation of seismic signals during transmission; each channel has a digital detector, with track spacing of 5 meters and 10 meters for high-density reception, high resolution and high fidelity; embedded, terminal / node applications Computer technology; application of single-chip high-speed microprocessor technology; use of the latest component products; system design is simple, light and flexible, suitable for construction in complex surface environments.

[0035] The recording and production capacity of the host system of the present...

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Abstract

The invention discloses a seismic exploration data acquisition system, which stores, manages, processes and outputs received signals; connects several digital detectors with independent IP addresses in series to form an SMGS data chain with the same digital channel structure , the road distance is 5 meters, 10 meters. Each large-line interface unit SLIM is connected to two strings of digital sensor SMGS data chains, and the data of each SMGS is connected in two-dimensional SEG-Y format or in three-dimensional SEG-D format or IBM32-bit floating point through a data transmission cable The format is recorded on magnetic media; the central recording system performs data storage management and drawing; and screen playback; a computer with RAM memory is set in the large line interface unit; a data arrangement management unit is used for each data receiving line IXU. The transmission rate of the data transmission cable is 100Mbps; it can transmit samples in real time. When the system is produced, two-dimensional: 2000 channels / 1ms sampling; three-dimensional: 30000 channels / 1ms sampling.

Description

technical field [0001] The invention relates to a data acquisition system, in particular to a high-density seismic exploration data acquisition system used in the exploration and development of oil, gas and coal resources. Background technique [0002] The "Notice of the General Office of the National Development and Reform Commission on Organizing and Implementing the National Major Industrial Technology Development Project of "Key Technologies for Resource Exploration, Development and Efficient Utilization"" issued on July 20, 2004, which includes high-precision, high-resolution geophysical prospecting technology The content focuses on further improving the accuracy and resolution of 3D seismic seismic exploration technology under complex surface and geological conditions. [0003] The Central Committee of the Communist Party of China and the State Council's "Decision on Implementing the Outline of Science and Technology Planning and Enhancing Independent Innovation Capabi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V1/22
Inventor 侯树麒
Owner 侯树麒
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