Geophysical exploring device and method for transitional zone areas between bog and shallow beach sea

A technology of geophysical exploration and transition zone, which is applied in seismology, geophysical measurement, and measuring devices in areas covered by water, and can solve the problems of inability to meet actual needs, limited expansion space, poor excitation effect, etc. problems, to achieve the effect of solving regional exploration and construction problems, easy to fix the air gun, and easy to maintain
CN103995291AActive Publication Date: 2014-08-20BGP OF CHINA NAT GASOLINEEUM CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BGP OF CHINA NAT GASOLINEEUM CORP
Publication Date
2014-08-20

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Abstract

A geophysical exploring device method for the transitional zone areas between bog and shallow beach sea belongs to the technical field of geophysical exploration. An air gun is arranged in a drill bit composed of two drill bit piece bodies, filling blocks are welded into the two drill bit piece bodies, a drill stem connecting flange is arranged at the bottom of a drill stem, the drill stem connecting flange is of an integrated structure, drill bit connecting flanges are arranged at the upper portions of the drill bit piece bodies, the drill bit connecting flanges are of two semi-annular structures, the drill stem connecting flange is sleeved by an anti-loosen screw to be connected with the drill bit connecting flanges, and accordingly the drill stem and the drill bit piece bodies are combined to form a main body structure of a detachable type air gun drill bit. Two symmetrical spiral pieces are welded to the bottoms of the drill bit piece bodies respectively to form a dual-spiral drill bit structure. The diameter of the drill bit composed of the two combined spiral piece is 500mm. The drill bit piece bodies are of hollow structures, composed of two semi-tubular structures respectively and sleeved by screws to be fixed. The air gun is arranged in the hollow structures. By means of the dual-spiral drill bit structure, stimulating operation of the air gun can be finished synchronously.
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Description

Technical field

[0001] The invention relates to a geophysical prospecting device and method used in swamps and beach-to-sea transition zones, and belongs to the field of technical geophysical prospecting. Background technique

[0002] In oil exploration in the coastal transition zone, the traditional mode of operation is to use explosives or mud guns as seismic sources. However, this part of the area is generally a swamp and wetland. Many countries have designated this area as a nature reserve and prohibit the use of explosives as a seismic source. When the mud gun is used in this area, it is affected by the limited expansion space, insufficient energy release, and poor excitation effect. It cannot be applied well in this area and cannot meet actual needs. Summary of the invention

[0003] In order to overcome the shortcomings of the prior art, the present invention provides a geophysical prospecting device and process method used in swamps and coastal transition zone areas. [00...

Claims

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