Earthquake-electromagnetic data acquisition device and earthquake-electromagnetic data acquisition system
An electromagnetic data and acquisition device technology, applied in the field of geophysical exploration, can solve problems such as low efficiency, high cost of seismic acquisition technology, and difficulty in joint data processing, and achieve the effect of eliminating differences or errors
Inactive Publication Date: 2014-12-10
BC P INC CHINA NAT PETROLEUM CORP +1
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[0004] The main purpose of the embodiments of the present invention is to provide a seismic-electromagnetic data acquisition device and acquisition system to solve the problems of high cost, low efficiency, and difficulty in joint data processing of the existing seismic acquisition technology.
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[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0019] Embodiments of the present invention provide a seismic-electromagnetic data acquisition device and an acquisition system. The present invention will be described in detail below in conjunction with the accompanying drawings.
[0020] An embodiment of the present invention provides a seismic-electromagnetic data acquisition device 100, such as Figure 1A and Figure 1B As shown, the seismic-electromagnetic data acquisition device 100 includes: a plurali...
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The invention provides an earthquake-electromagnetic data acquisition device and an earthquake-electromagnetic data acquisition system. The earthquake-electromagnetic data acquisition device comprises multiple data acquisition channel and at least an electric dipole, wherein at least one of the multiple data acquisition channels is an electric data acquisition channel; the electric data acquisition channel comprises a first signal input end, a first electric channel RC circuit, a first amplifier, a first analogue-digital converter, a first data storage device and a first data output port, all of which are connected in sequence; the first signal input end is connected with one electric dipole; the first electric channel RC circuit has the frequency response range of DC-1000 Hertz ad the input impedance greater than or equal to 30 megohms. Through the earthquake-electromagnetic data acquisition device and the earthquake-electromagnetic data acquisition system, the earthquake data and electromagnetic data can be acquired exactly, data support is provided for the oil-gas detection of the target space, all-around research and identification of the object property are realized, and the accuracy and precision for complex object detection in the field of the unconventional oil-gas exploration fields such as oil and gas reservoir exploitation and shale gas are improved.
Description
technical field [0001] The present invention relates to geophysical exploration technology, in particular to a seismic-electromagnetic data acquisition device and acquisition system. Background technique [0002] Electromagnetic and seismic are the two most similar exploration techniques and methods in geophysical exploration. Both have the function of sounding, and both can study exploration targets from very shallow to very deep. The principles used by the two methods are similar but quite different. One One is electromagnetic waves and the other is elastic waves. Therefore, there is a significant difference in the detection ability and accuracy of the two for underground targets. For example, after an earthquake encounters a high-speed layer, it is difficult to identify the underlying stratum, while the electromagnetic law is completely unaffected by it. ;Seismic is very sensitive to the physical interface, but the electromagnetic method is good for the underground lithol...
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IPC IPC(8): G01V11/00
Inventor 余刚何展翔唐必晏
Owner BC P INC CHINA NAT PETROLEUM CORP