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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

Active Publication Date: 2014-08-20
BGP OF CHINA NAT GASOLINEEUM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the mud gun is used in this area, due to the limited expansion space, insufficient energy release, and poor excitation effect, it cannot be well applied in this area and cannot meet the actual needs

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Example 1: Such as figure 1 , figure 2 As shown, a geophysical exploration device used in swamp and beach-to-sea transition zone; it is composed of drill pipe 1, drill bit body 2, air outlet 3, and spiral piece 4. The air gun 5 is installed in the drill bit formed by the two drill bit slices 2, and the filling block 6 is welded in the two drill slices 2.

[0016] The bottom of the drill rod 1 is a drill rod connecting flange, and the drill rod connecting flange is an integral structure. The upper part of the drill bit body 2 is a drill bit connecting flange, and the drill bit connecting flange has two semi-annular structures. The drill rod connecting flange is connected with the drill bit connecting flange through 6 sets of anti-loosening screws, so that the drill rod 1 and the drill bit slice 2 are combined into the main structure of the disassembled air gun drill bit. Two symmetrical spiral pieces 4 are respectively welded to the bottom of each drill bit body 2 to for...

Embodiment 2

[0017] Example 2: figure 1 Shown is a disassembled air gun drill bit, which is composed of a drill rod 1, a drill piece body 2, an air outlet 3, and a spiral piece 4. The air gun 5 is installed in the drill bit formed by the two drill bit slices 2, and the filling block 6 is welded in the two drill slices 2. figure 2 Shown is the internal schematic diagram of the disassembled air gun bit.

[0018] The drill rig drills the drill pipe and the drill bit into the formation at the same time. When the drill reaches the specified depth, the air gun excitation operation is performed. After the excitation operation is completed, the drill bit and the drill pipe are lifted out of the ground together. Because the air gun and the drill bit are an integrated structure, drilling and excitation operations can be completed at one time, greatly improving production efficiency. The disassembled air gun bit structure is not only easy to fix the air gun, but also easy to maintain the air gun. The...

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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.

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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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V1/38G01V1/133
Inventor 李海军李亚夫刘军胡宝京高斌史颖戴丽丽姚婧超刘原英
Owner BGP OF CHINA NAT GASOLINEEUM CORP
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