CN102798886A - Bypassing seismic exploration method - Google Patents
Bypassing seismic exploration method Download PDFInfo
- Publication number
- CN102798886A CN102798886A CN2011101367724A CN201110136772A CN102798886A CN 102798886 A CN102798886 A CN 102798886A CN 2011101367724 A CN2011101367724 A CN 2011101367724A CN 201110136772 A CN201110136772 A CN 201110136772A CN 102798886 A CN102798886 A CN 102798886A
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- China
- Prior art keywords
- road
- bypassing
- seismic
- shot point
- excitation point
- Prior art date
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000004458 analytical method Methods 0.000 claims abstract description 3
- 238000005259 measurement Methods 0.000 abstract description 6
- 230000005284 excitation Effects 0.000 abstract 4
- 230000007547 defect Effects 0.000 abstract 1
- 230000006378 damage Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011295 pitch Substances 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
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- Geophysics And Detection Of Objects (AREA)
Abstract
The invention relates to a bypassing seismic exploration method. The method comprises the following steps that: 1, when the forefront of a detector array meets a road, an excitation point continuously moves forward along a measuring line, and a detector which meets the road stops moving forward; and 2, along with the forward movement of the excitation point, the received seismic wave channel quantity is small, when distance between the excitation point and a road side is equal to the sum of an offset and one second to one third of the length of the detector array, the detector array and the excitation point respectively move to the other side of the road for continuous measurement, and lack seismic data channels are added according to an event trend analysis method. The bypassing seismic exploration method has the advantages that by adoption of a novel bypassing method, the defect about measurement during road bypassing of the measuring line is overcome; and on the premise that a road surface is not damaged, the continuous measurement is realized.
Description
Technical field
The present invention relates to a kind of method of seismic prospecting of being convenient to pass by on one's way, particularly relate to a kind of method of seismic prospecting of being convenient to pass by on one's way of avoiding road pavement to produce and destroy.
Background technology
In mineral resources exploration work, the shallow seismic exploration method often is used as effective, method for continuous measuring.Along with China's different kinds of roads are constantly newly-built, road network density exponentially increases, and in the field survey, runs into the puzzlement of road through regular meeting.At present common way be with channel-section steel across on road, the seismic cable line like big line, transmission line, big gun line etc., passes below channel-section steel, is fixed on the road surface with iron nail, reaches the purpose of protecting seismic cable.Doing so undoubtedly road pavement to have destruction, and this is that institute of road administration department is unallowed, also has when running into highway, can't reach the purpose of measurement with said method, causes that bigger blind area is arranged.For reduce as far as possible because of road to the successional influence of survey line, must on earthquake data acquisition and processing mode, do necessary innovation and improvement.
Summary of the invention
The technical matters that the present invention will solve provides a kind of road pavement of avoiding and produces reducing as far as possible because of the method for seismic prospecting being convenient to pass by on one's way of road to the successional influence of survey line of destroying.
For solving the problems of the technologies described above, a kind of method of seismic prospecting of being convenient to pass by on one's way of the present invention may further comprise the steps successively:
The first step, when geophone arrangement run into road foremost the time, shot point continues to advance along survey line, the wave detector that meets with road does not continue to move forward;
Second the step, along with shot point moves forward; It is fewer and feweri to receive the earthquake number of channels; When shot point equaled an offset distance and 1/2 to 1/3 geophone arrangement length sum apart from the distance in roadside, geophone arrangement and shot point all moved on to an other side of road, continued to measure.
According to the lineups trend analysis method, supply the seismic-data traces that lacks.
The present invention has overcome the difficulty that survey line brings to measurement through road through adopting a kind of new path method excessively.Guaranteeing that road pavement does not produce under the prerequisite of destruction, realized continuous coverage.
Embodiment
Embodiment one
With 12 road geophone arrangements is example, and acquisition parameter is following: 40 meters of offset distances, 10 meters of track pitches, 0.5 millisecond of sampling rate, record length 2 seconds.Be first record when running into road foremost with geophone arrangement, this moment, 12 seismic-data traces were complete.By that analogy, the 7th record lacks 6 seismic-data traces, according to the lineups analytic approach, supplies the seismic-data traces that lacks successively.When distance be
when rice of shot point apart from the roadside; Geophone arrangement and shot point are all moved on to the opposite side on road, keep original acquisition parameter to continue to measure.
Embodiment two
With 12 road geophone arrangements is example, and acquisition parameter is following: 40 meters of offset distances, 10 meters of track pitches, 0.5 millisecond of sampling rate, record length 2 seconds.Be first record when running into road foremost with geophone arrangement, this moment, 12 seismic-data traces were complete.By that analogy, the 8th record lacks 7 seismic-data traces, according to the lineups analytic approach, supplies the seismic-data traces that lacks successively.When distance be
when rice of shot point apart from the roadside; Geophone arrangement and shot point are all moved on to the opposite side on road, keep original acquisition parameter to continue to measure.
Adopt above embodiment, can overcome the difficulty that survey line brings to measurement through road, do not produce in road pavement under the prerequisite of destruction, realized continuous coverage.
Claims (2)
1. method of seismic prospecting of being convenient to pass by on one's way may further comprise the steps successively:
The first step, when geophone arrangement run into road foremost the time, shot point continues to advance along survey line, the wave detector that meets with road does not continue to move forward;
Second the step, along with shot point moves forward; It is fewer and feweri to receive the earthquake number of channels; When shot point equaled an offset distance and 1/2 to 1/3 geophone arrangement length sum apart from the distance in roadside, geophone arrangement and shot point all moved on to an other side of road, continued to measure.
2. a kind of method of seismic prospecting of being convenient to pass by on one's way according to claim 1 is characterized in that: according to the lineups trend analysis method, supply the seismic-data traces that lacks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101367724A CN102798886A (en) | 2011-05-25 | 2011-05-25 | Bypassing seismic exploration method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101367724A CN102798886A (en) | 2011-05-25 | 2011-05-25 | Bypassing seismic exploration method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102798886A true CN102798886A (en) | 2012-11-28 |
Family
ID=47198041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101367724A Pending CN102798886A (en) | 2011-05-25 | 2011-05-25 | Bypassing seismic exploration method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102798886A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4611311A (en) * | 1983-04-20 | 1986-09-09 | Chevron Research Company | Method of seismic processing involving converted P- or S-wave data |
| CN101710184A (en) * | 2009-12-23 | 2010-05-19 | 中国石油天然气股份有限公司 | Bidirectional non-longitudinal rolling observation seismic exploration and acquisition method |
-
2011
- 2011-05-25 CN CN2011101367724A patent/CN102798886A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4611311A (en) * | 1983-04-20 | 1986-09-09 | Chevron Research Company | Method of seismic processing involving converted P- or S-wave data |
| CN101710184A (en) * | 2009-12-23 | 2010-05-19 | 中国石油天然气股份有限公司 | Bidirectional non-longitudinal rolling observation seismic exploration and acquisition method |
Non-Patent Citations (5)
| Title |
|---|
| ROY K.A. 等: "Negotiation with NSO(Non Seismic Object)-2D Land Seismic Surveys ", 《6TH EXPLORATION CONFERENCE & EXPOSITION ON PETROLEUM GEOPHYSICS KOLKATA 2006》 * |
| 梁顺军 等: "二维地震过障碍观测系统模式及其参数设计", 《石油地球物理勘探》 * |
| 王刚: "煤田二维地震勘探的变观", 《河北煤炭》 * |
| 钟绍华: "二维地震勘探灵活观测系统设计施工", 《石油地球物理勘探》 * |
| 钟绍华: "山区二维地震勘探多次覆盖灵活观测方法", 《石油物探》 * |
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Application publication date: 20121128 |