CN220603710U - Special excitation device for field micro-logging construction of seismic exploration - Google Patents
Special excitation device for field micro-logging construction of seismic exploration Download PDFInfo
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- CN220603710U CN220603710U CN202322299613.7U CN202322299613U CN220603710U CN 220603710 U CN220603710 U CN 220603710U CN 202322299613 U CN202322299613 U CN 202322299613U CN 220603710 U CN220603710 U CN 220603710U
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- valve
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- detonation chamber
- housing
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- 230000005284 excitation Effects 0.000 title claims abstract description 20
- 238000010276 construction Methods 0.000 title claims abstract description 12
- 238000005474 detonation Methods 0.000 claims abstract description 22
- 239000001273 butane Substances 0.000 claims description 4
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 claims description 4
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 239000002689 soil Substances 0.000 abstract description 3
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 20
- 238000000034 method Methods 0.000 description 8
- 239000002360 explosive Substances 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 238000010892 electric spark Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Geophysics And Detection Of Objects (AREA)
Abstract
The utility model discloses a special excitation device for field micro-logging construction of seismic exploration, which comprises: shell, piezoelectricity ignition switch, ignition wire, combustible gas jar, relief pressure valve, pneumatic valve switch, check valve, detonation chamber, wherein: the combustible gas tank, the pressure reducing valve, the gas valve switch, the one-way valve and the detonation chamber are arranged in the shell; the bottom of the combustible gas tank is connected with the detonation chamber through a pipeline, a pressure reducing valve, a gas valve switch and a one-way valve are arranged on the pipeline from top to bottom, and the switch of the gas valve switch is exposed out of the shell; the piezoelectric ignition switch is arranged on the shell of the shell and is connected into the detonation chamber through an ignition wire. The scheme is not influenced by surface soil, the excitation consistency is good, and the data acquisition is easy. The utility model is a special excitation device for the field micro-logging construction of seismic exploration, does not produce environmental pollution in use, can improve the working efficiency and greatly lightens the labor intensity.
Description
Technical Field
The utility model relates to a special excitation device for field micro-logging construction of seismic exploration, in particular to a detonation seismic source in land seismic exploration micro-logging construction, and belongs to the technical field of special.
Background
The seismic exploration is based on the principles of geology and physics, adopts methods such as electronics and informatics, adopts a manual mode to cause crust vibration to generate elastic waves, the elastic waves propagate into an underground medium, and then uses an instrument to record the vibration condition of each point on the ground after explosion, so as to indirectly infer the underground geological structure and further search for possible closed oil-containing gas rings. The seismic exploration method is widely applied to general investigation and exploration of petroleum, natural gas and coal fields. During construction, the seismic sources are arranged on the ground surface to excite and collect seismic wave information, and the seismic detectors are embedded on the ground surface to receive the vibration information.
The microseism logging method is also called microseism logging, and is the same as the conventional logging principle, the propagation rule of direct waves in the stratum is utilized, different first arrival time is obtained by changing the observation depth of a detector, vertical time is converted according to the depth, and the layering speed and thickness are obtained by fitting a deep curve. The micro-logging is different from the conventional logging, has the characteristics of shallow well and small aperture, is mainly used for surface data investigation, and particularly, obtains transmission wave records in one or more wells penetrating through low and slow-down zones by adopting modes of well excitation, ground reception or well excitation, well reception and the like, and provides accurate near-surface speed and thickness models for exploration acquisition according to a method for researching near-surface structures by means of transmission wave first arrivals.
Based on this, the micro-logging technology is widely applied to seismic exploration and is a more advanced technology than the conventional small refraction method. The micro-logging data is researched by utilizing methods such as data processing interpretation, fluctuation mechanics analysis and the like, so that the optimal excitation lithology and well depth can be more accurately selected for field seismic data acquisition, the point-by-point design of the excitation well depth by production technicians can be facilitated, and the stability of excitation wavelets can be improved. By combining with a field static correction calculation method, the change rule of the surface layer speed and thickness in the transverse direction and the longitudinal direction in the earthquake work area can be obtained, and static correction values are provided for indoor processing of earthquake data.
The means for manually exciting the seismic waves is called a manual source. The artificial seismic source is divided into an explosive seismic source and a non-explosive seismic source; non-explosive sources can be further divided into: a pulsed source and a controlled source; the usual pulse seismic sources are spark seismic sources, air guns and the like. Because of the small energy required for excitation of micro-logs, there is no dedicated excitation device. At present, the common excitation source has the following defects: the detonator and the explosive source have strict supervision regulations on purchase, storage, transportation and use, related personnel all need national authentication, special equipment is provided, the use cost is high, and the approval procedure is strict; the electric spark source is expensive and heavy in equipment, a generator is required to be arranged, and the manpower cost is high under the field working condition; the manual hammering vibration source is greatly influenced by surface soil, the manual hammering consistency is poor, and data acquisition is difficult.
Disclosure of Invention
The utility model aims to provide a special excitation device for the field micro-logging construction of seismic exploration, which has the characteristics of simple structure, environment friendliness, convenience in carrying, easiness in maintenance, low manufacturing cost, reliability in use, no consumption of electricity and oil and the like, and can reduce the use cost and the labor intensity of operators.
The technical scheme is as follows:
a special excitation device for field micro-logging construction of seismic exploration comprises: shell, piezoelectricity ignition switch, ignition wire, combustible gas jar, relief pressure valve, pneumatic valve switch, check valve, detonation chamber, wherein: the combustible gas tank, the pressure reducing valve, the gas valve switch, the one-way valve and the detonation chamber are arranged in the shell; the bottom of the combustible gas tank is connected with the detonation chamber through a pipeline, a pressure reducing valve, a gas valve switch and a one-way valve are arranged on the pipeline from top to bottom, and the switch of the gas valve switch is exposed out of the shell; the piezoelectric ignition switch is arranged on the shell of the shell and is connected into the detonation chamber through an ignition wire.
Preferably, the detonation chamber is made of steel, and the lower part is open.
Preferably, the flammable gas tank is a commercially available disposable butane gas tank, and can be replaced after being used up.
Preferably, the piezoelectric ignition switch uses a piezoelectric ceramic igniter.
Preferably, the outer shape of the housing is cylindrical.
Preferably, the size of the shell is 120mm in diameter at the bottom and 450mm in height.
Preferably, the bottom of the housing is provided with a detachable foot.
Preferably, the height of the legs is adjustable.
Preferably, the material of the shell is metal or plastic.
Preferably, the shell is hollowed out.
The beneficial effects of the utility model are that
Compared with detonator and explosive source, the method has no dangerous article supervision requirement, and saves a great deal of manpower, equipment and approval requirements; the electric spark seismic source is high in price and huge in volume, and can be easily carried by a single person, so that the labor and oil cost are saved; for manual hammering seismic source, this scheme does not receive the surface soil influence, and excitation uniformity is good, and data acquisition is easy. The utility model is a special excitation device for the field micro-logging construction of seismic exploration, does not produce environmental pollution in use, can improve the working efficiency and greatly lightens the labor intensity.
Drawings
FIG. 1 is a schematic view of the structure of the present utility model
FIG. 2 is a schematic view of an application scenario of the present utility model
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the utility model. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. It should be noted that the dimensions noted herein are merely for the purpose of describing particular embodiments and are not intended to limit exemplary embodiments according to the present utility model. As used herein, the singular forms also are intended to include the plural forms unless the context clearly indicates otherwise, and furthermore, it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, and/or combinations thereof.
As shown in fig. 1, a special excitation device for field micro-logging construction of seismic exploration comprises: the device comprises a shell 1, a piezoelectric ignition switch 2, an ignition wire 3, a combustible gas tank 4, a pressure reducing valve 5, a gas valve switch 6, a one-way valve 7 and a detonation chamber 8, wherein: the combustible gas tank 4, the pressure reducing valve 5, the air valve switch 6, the one-way valve 7 and the detonation chamber 8 are arranged in the shell 1; the bottom of the combustible gas tank 4 is connected with the detonation chamber 8 through a pipeline, a pressure reducing valve 5, a gas valve switch 6 and a one-way valve 7 are arranged on the pipeline from top to bottom, and the switch of the gas valve switch 6 is exposed out of the shell 1; the piezoelectric ignition switch 2 is arranged on the shell of the shell 1, and the piezoelectric ignition switch 2 is connected into the detonation chamber 8 through the ignition wire 3.
In a preferred embodiment, the detonation chamber 8 is made of steel, the lower part being open.
In a preferred embodiment, the flammable gas tank 4 is a commercially available disposable butane gas tank that can be replaced after use.
In a preferred embodiment, the piezo-electric ignition switch 2 uses a piezo-ceramic igniter.
In a preferred embodiment, the outer shape of the housing 1 is cylindrical.
In the preferred embodiment, the dimensions of the housing 1 are 120mm in diameter at the bottom and 450mm in height.
In a preferred embodiment, the bottom of the housing 1 is provided with a detachable foot 9.
In a preferred embodiment, the height of the foot 9 is adjustable.
In a preferred embodiment, the material of the housing 1 is metal or plastic.
In a preferred embodiment, the housing 1 is hollow.
In operation, as shown in FIG. 2, a micro-logging dedicated detonation source 10 is placed in a puddle 11 and a downhole pickup 13 is dropped into the bottom of a borehole 12. The air valve switch 6 is controlled to enable a proper amount of butane gas to be inflated into the detonation chamber 8 to be mixed with air, then the air valve switch 6 is closed, the piezoelectric ignition switch 2 is started to detonate the mixed gas, high-temperature and high-pressure gas is generated, the water body is impacted instantaneously to cause vibration, and the vibration is transmitted to the underground detector 13 to obtain the first arrival time. The explosion reaction products are only water and carbon dioxide, so that the energy is saved and the environment is protected.
The foregoing description is only of a preferred embodiment of the utility model and is not intended to limit the scope of the utility model. All technical schemes formed by equivalent substitution or equivalent transformation fall within the protection scope of the utility model. The technical features of the present utility model that are not described may be implemented by or using the prior art, and are not described herein.
Claims (10)
1. The special excitation device for the field micro-logging construction of the seismic exploration is characterized by comprising the following components: shell (1), piezoelectricity ignition switch (2), ignition wire (3), combustible gas jar (4), relief valve (5), air valve switch (6), check valve (7), detonation chamber (8), wherein: the combustible gas tank (4), the pressure reducing valve (5), the gas valve switch (6), the one-way valve (7) and the detonation chamber (8) are arranged in the shell (1); the bottom of the flammable gas tank (4) is connected with the detonation chamber (8) through a pipeline, a pressure reducing valve (5), a gas valve switch (6) and a one-way valve (7) are arranged on the pipeline from top to bottom, and the switch of the gas valve switch (6) is exposed out of the shell (1); the piezoelectric ignition switch (2) is arranged on the shell of the shell (1), and the piezoelectric ignition switch (2) is connected into the detonation chamber (8) through the ignition wire (3).
2. The device according to claim 1, characterized in that the detonation chamber (8) is made of steel, the lower part being open.
3. The device according to claim 1, characterized in that the flammable gas tank (4) is replaced with a disposable commercially available butane gas tank.
4. The device according to claim 1, characterized in that the piezo-electric ignition switch (2) uses a piezo-ceramic igniter.
5. Device according to claim 1, characterized in that the outer shape of the housing (1) is cylindrical.
6. The device according to claim 5, characterized in that the dimensions of the housing (1) are 120mm in diameter and 450mm in height on the bottom.
7. Device according to claim 1, characterized in that the bottom of the housing (1) is provided with detachable feet (9).
8. Device according to claim 7, characterized in that the height of the foot (9) is adjustable.
9. Device according to claim 1, characterized in that the material of the housing (1) is metal or plastic.
10. The device according to claim 1, characterized in that the housing (1) is hollowed out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322299613.7U CN220603710U (en) | 2023-08-25 | 2023-08-25 | Special excitation device for field micro-logging construction of seismic exploration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322299613.7U CN220603710U (en) | 2023-08-25 | 2023-08-25 | Special excitation device for field micro-logging construction of seismic exploration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220603710U true CN220603710U (en) | 2024-03-15 |
Family
ID=90165232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322299613.7U Active CN220603710U (en) | 2023-08-25 | 2023-08-25 | Special excitation device for field micro-logging construction of seismic exploration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220603710U (en) |
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2023
- 2023-08-25 CN CN202322299613.7U patent/CN220603710U/en active Active
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