CN101029935A - Method for controlling field earthquake prospecting collection process - Google Patents
Method for controlling field earthquake prospecting collection process Download PDFInfo
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- CN101029935A CN101029935A CN 200610058312 CN200610058312A CN101029935A CN 101029935 A CN101029935 A CN 101029935A CN 200610058312 CN200610058312 CN 200610058312 CN 200610058312 A CN200610058312 A CN 200610058312A CN 101029935 A CN101029935 A CN 101029935A
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Abstract
A method for controlling outdoor collection process of seismic prospecting includes confirming physical point with qualified construction as standard physical point by making analysis through on-site substation and computer software , using seismic wave parameter obtained from seismic prospecting on purpose layer as comparison standard value, using result of comparing physical point record without on-site substation detection to comparison standard value as evaluation evidence on physical point record without on-site substation then using said standard physical point and value as well as evidence to evaluate construction and record quality of seismic collection.
Description
Technical field
The present invention relates to seismic exploration technique, is a kind of control method of field earthquake prospecting collection process specifically.
Background technology
In traditional seismic exploration technique, the field acquisition process of geological data is a complexity and arduous process, and disposable input ratio is bigger, and the seasonality of construction is strong.If after the construction, after the data processing of gathering, find the acquisition quality existing problems by the time, gather again again, will cause investment many, the time is long, greatly influences exploration efficiency and cycle.Therefore, in gatherer process, be most important link in the field earthquake prospecting collection to quality control on construction, especially crucial especially to the evaluation of seismologic record.Be to be undertaken by on-the-spot artificial evaluation that the seismic monitoring that is obtained in gathering is write down in the past.Although more detailed seismic monitoring records appraisal standard is arranged,, owing to following reason, the still less rational faculty of the effect of evaluation:
Traditional seismologic record evaluation method mainly is to depend on experienced engineering technical personnel to carry out artificial judgment, its be subjected to the appraiser technical merit, experience, traffic energy, understanding of underground geologic structure etc. is influenced, bigger subjectivity is arranged, lack science and quantification;
The seismologic record quality is subjected to factor affecting such as geologic structure, construction method, construction quality, and sometimes, be difficult to distinguish is that what reason causes the of low quality of seismologic record actually.
On the other hand, also the someone utilizes computer technology, and seismic data is differentiated.Mainly be to convert relevant index to data, differentiate then according to industry standard.Because seismologic record is big in different regional disparities, can't find the standard of scientific quantification, therefore in actual applications, poor effect.
At present, still do not have the better technical scheme of this respect both at home and abroad, employing all be artificial estimate or seismologic record simply superposeed with computing machine after, estimate from seismic section.Defective with artificial evaluation is tangible, a major defect with the evaluation of site disposal section is a promptness, after treating that on-the-spot section processing is finished, field acquisition finishes, and seismic arrangement is packed up, if, the discovery data is not all right, gather again, and also cloth is arranged again, workload is big, loses time.Simultaneously, a common defective of said method is not combine with the field construction field quality check, and the reason bad to the earthquake recording quality is difficult to differentiate.In addition, because the scope of earthquake field construction is big, it is hundreds of thousands of that seismic arrangement has, even ten thousand roads nearly, is 10 kms; If the 3-d seismic exploration lateral separation can reach 2 kms, nearly the scope of 20 sq-kms is a bigger difficult problem to quality control on construction.Can only adopt the way at a small amount of selective examination and indivedual other stations, can't accomplish comprehensive inspection, therefore, optimize the control to field earthquake prospecting collection process, promptly the earthquake-capturing construction quality is monitored is the important topic that remains development research always.
Summary of the invention
The object of the present invention is to provide a kind of human factor that can reduce the field acquisition quality assessment, make more scientific, the quantification of field earthquake prospecting collection, with increase work efficiency, the control method of the field earthquake prospecting collection process of construction quality monitoring level and benefit.
For achieving the above object, the control method of field earthquake prospecting collection process of the present invention may further comprise the steps:
1), and formulates on-the-spot supervision plan according to the exploration deployment physical points that settles the standard;
2) the contrast engineering design and construction is arranged progress, geologic structure machine plotting inspection on exploration deployment figure;
3) according to designing requirement, the construction parameter of given standard physical point;
4) implement the field construction operation at standard physical point, and the other station of carrying out earthquake stimulation checks and earthquake receives the inspection of arranging, the record check result, confirm to meet design standards qualified after, notify seismic instrument to blow out;
5) seismic instrument is blown out, and implements earthquake data acquisition, and the seismologic record that is obtained is carried out the artificial evaluation in scene: if qualified, other physical points continues construction according to this acquisition parameter; If defective, notice is done over again, and turns back to the 3rd) step, given again construction parameter;
6) data that obtained are carried out quantitative analysis on computers: the seismic wave parameter that extracts the exploration zone of interest, comprise energy, predominant frequency, signal to noise ratio (S/N ratio), frequency spectrum, lineups continuity parameter, normal data value as a comparison, and provide range of control, then, seismologic record and its contrast with other physical points, judge whether examination is qualified, if defective, notice is done over again, turn back to the 3rd) step, given again construction parameter; If qualified, grant and continue construction, and the storage data data;
7) output quality appraisal report.
The control method of field earthquake prospecting collection process of the present invention wherein, in described step 6), is carried out quantitative analysis to the earthquake image data on computers, and the running program of described quantitative computer analysis is carried out following steps:
(1) separates volume big gun collection, earthquake class newspaper, measurement data is imported computing machine, form database;
(2) data are carried out seismic attributes analysis, comprise energy, predominant frequency, signal to noise ratio (S/N ratio), frequency spectrum, lineups continuity;
(3) check record according to the other station in field, definition standard physical point;
(4) record and the standard physical point with other physical points compares, and draws comparison diagram relatively, extracts energy, dominant frequency, frequency range, the signal to noise ratio (S/N ratio) parameter of seismologic record, carries out the contrast of parameter value and ratio, and filtering out transfinites a little;
(5) draw spectrogram, numerical value, ratio curve map and histogram.
The control method of field earthquake prospecting collection process of the present invention, wherein, described step (4) as a comparison value comprise energy, predominant frequency, signal to noise ratio (S/N ratio), frequency spectrum and lineups continuity at least; Described step (5) will be drawn numerical value, ratio correlation curve figure and the histogram of energy, frequency, 3 attributes of signal to noise ratio (S/N ratio) at least.
The control method of field earthquake prospecting collection process of the present invention, wherein, in described step 7), the seismologic record appraisal report of computing machine output comprises the shot point pile No. of standard physical point at least; Allow the number percent of range of control; Transfinite a little pile No., number account for the number percent of total physical points; The correlation curve figure and the histogram of energy, frequency, signal to noise ratio (S/N ratio), and construction quality and the description of seismologic record quality.
The control method of field earthquake prospecting collection process of the present invention is checked by on-the-spot other station and is utilized professional software to carry out quantitative analysis on computers to combine, checked with the station, side, and the seismologic record that physical points obtained that construction quality meets the technical design requirement is a standard, extract the seismic wave parameter of exploration zone of interest, standard value as a comparison, and according to the surveying accuracy requirement, define the contrast standard of certain range of control, the seismologic record of will be checking through other station that physical points obtained will not compare with it, as to not through the evaluation foundation of the seismologic record that physical points obtained of other station inspection.With this, estimate and monitor earthquake-capturing construction quality and seismologic record quality.This method has been controlled earthquake-capturing construction quality and seismologic record quality effectively, realization reaches the target of effective control with limited inspection, promptly reduce the other station of field condition and checked workload, improved operating efficiency, can realize comprehensive control again with the means of science, have remarkable economic efficiency earthquake-capturing construction quality and seismologic record quality.
Description of drawings
Fig. 1 is the main flow chart of the control method of field earthquake prospecting collection process of the present invention;
Fig. 2 is the process flow diagram of quantitative computer analysis running program in the control method of the present invention.
Embodiment
The core technology of the control method of field earthquake prospecting collection process of the present invention is that other on the spot station, field check result is combined with the computer discriminant technology, evaluation of earthquake-capturing construction quality and seismologic record quality assessment are combined, the energy science, effectively, quantification ground control earthquake-capturing quality, can find out the reason that seismologic record is bad rapidly, be that the collection construction quality is bad, or geologic structure problem, or construction method problem? in time take effective specific aim measure, as strengthen and gather the construction quality management, adjust construction method, guarantee the raising of seismologic record quality and the raising of seismic prospecting benefit.
With reference to Fig. 1, from the step of the control method of field earthquake prospecting collection process of the present invention as can be known,
The first step:, formulate the scene supervision of standard physical point and plan according to the exploration deployment physical points that settles the standard.
For this reason,, several relative consistent and stable sections with condition of acceptance that excite are divided in the work area, in section, selected several shot points of adjoining area of can representing as the standard physical point according to the top layer seismic geological codition and the subsurface geologic structures characteristics in exploration work area.It selects main points to be: representative, can represent the feature that excites of adjacent physical points; In the exploration work area, be evenly distributed, have controlled; In time, be evenly distributed, work progress is had control action.The foundation of the physical points that settles the standard is: exploration deployment figure; The engineering design and construction scheduling.Formulate the scene supervision plan of standard physical point, field supervisor will be when standard physical point be constructed, and the arrival working-yard is carried out the other station of work progress and checked.
Second step: the contrast engineering design and construction is arranged progress, geologic structure machine plotting inspection on exploration deployment figure, requires in different tectonic structure areas, different construction methods, different engineering time sections, and the standard physical point control is all arranged.
The 3rd step: according to designing requirement, the construction parameter of given standard physical point.When well gun excitation, shooting parameter comprises: well depth, well array are closed mode and figure, the degree of depth of the type of explosive, quantity, prescribe medicine; When vibroseis excites, comprising: focus type and weight, platform number and composite figure, shake frequency, sweep time and frequency; The reception parameter comprises: the reception channel number, and the number of wave detector, array mode, composite figure and array length, the serviceability rate of wave detector and duty, environmental noise does not exceed standard; The parameter of recording of seismic instrument comprises: sampling interval, record length, preamplification gain and frequency range.
The foundation of given construction parameter is: the demonstration of method conclusion in the technical design; The conclusion of field method test; The construction parameter of Party A's reply; Surface structure investigation achievement.
The 4th step: implement the field construction operation at standard physical point, and the other station of carrying out earthquake stimulation checks and earthquake receives the inspection of arranging, the record check result, the purpose of the construction operation overall process of supervision and check standard physical point is to guarantee fully according to the technical requirement operation, confirm to meet design standards qualified after, the notice seismic instrument is blown out.
When well gun excitation, the physical prospecting supervisor will check at other at the scene station, whether position, number, the degree of depth, composite figure and the distance of confirming drilling well meet the requirements, detail record changes with the understanding formation lithology, and especially whether the quantity of the degree of depth of the lithology of excitation well section, prescribe medicine, explosive and type meet the requirements.Instrument and the content checked comprise: use handhold GPS, lining rope; Quantity, the type of explosive, the connection of detonator are checked in the scene; Measure the length of drilling rod; Use the degree of depth of digital shooting pole metering prescribe medicine; Observe landwaste, judge and bore the lithology of meeting; Measure the break-make of detonator behind the prescribe medicine once more.When vibroseis excited, platform number, the type of vibroseis checked at other station, physical prospecting supervisor scene, composite figure and cardinal distance, and confirm that construction parameter meets the requirements.Receive the inspection of arranging, comprising: the number of wave detector, composite figure and cardinal distance, embedding situation meet the requirements, and environmental noise does not exceed standard.Instrument is recorded parameter and is met the requirements.
After confirming that requirement that all meet technical design and duty are good, the notice seismic instrument is blown out, and implements earthquake data acquisition.
The 5th step: seismic instrument is blown out, and implements earthquake data acquisition, and the seismologic record that is obtained is carried out the artificial evaluation in scene: if qualified, other physical points continues construction according to this acquisition parameter; If defective, notice is done over again, and turns back to for the 3rd step, given again construction parameter.
The 6th step: the data that obtained are carried out quantitative analysis on computers: the seismic wave parameter that extracts the exploration zone of interest, comprise energy, predominant frequency, signal to noise ratio (S/N ratio), frequency spectrum, lineups continuity parameter, normal data value as a comparison, and provide range of control, then, seismologic record and its contrast with other physical points, judge whether examination is qualified, if defective, notice is done over again, turned back to for the 3rd step, given again construction parameter; If qualified, grant and continue construction, and the storage data data.With reference to Fig. 2, quantitative analysis may further comprise the steps:
Separate and compile the earthquake-capturing data, form shot gather data; And, form database with its data, earthquake class newspaper, measurement data input computing machine.
Data are carried out seismic attributes analysis, extract the major parameter of exploration zone of interest seismic event, comprise energy, predominant frequency, signal to noise ratio (S/N ratio), frequency spectrum, lineups continuity.
Record is checked at other station according to the field, definition standard physical point.Utilize measured database to draw the survey line location drawing, elevation map, standard physical point distribution plan.Examine the rationality of standard physical point position distribution.
Data value with standard physical point is a standard, and provides range of control, and foundation as a comparison compares the record of each physical points and the record of standard physical point, and filtering out transfinites a little.
Draw numerical value, ratio curve map, the histogram of above-mentioned parameter.
The 7th step: output quality appraisal report.Report content comprises at least: the pile No. of standard physical point and distribution plan, number and account for the number percent of total physical points; Range of control; Transfinite a little pile No., number, account for the number percent of total physical points; The correlation curve figure and the histogram of energy, frequency, signal to noise ratio (S/N ratio); The description of earthquake-capturing quality is carried out respectively by evaluation of earthquake-capturing construction quality and seismologic record quality assessment.
Adopt the control method of field earthquake prospecting collection process of the present invention, reduce the other station of field condition and checked workload, improved operating efficiency, can realize comprehensive control again with the means of science, solve the evaluation method of seismologic record preferably by qualitative to quantitative to earthquake field acquisition work progress.
Claims (4)
1, a kind of control method of field earthquake prospecting collection process is characterized in that may further comprise the steps:
1), and formulates on-the-spot supervision plan according to the exploration deployment physical points that settles the standard;
2) the contrast engineering design and construction is arranged progress, geologic structure machine plotting inspection on exploration deployment figure;
3) according to designing requirement, given standard physical point construction parameter;
4) implement the field construction operation at standard physical point, and the other station of carrying out earthquake stimulation checks and earthquake receives the inspection of arranging, the record check result, confirm to meet design standards qualified after, notify seismic instrument to blow out;
5) seismic instrument is blown out, and implements earthquake data acquisition, and the seismologic record that is obtained is carried out field evaluation; If qualified, other physical points continues construction according to this acquisition parameter; If defective, notice is done over again, and turns back to the 3rd) step, given again construction parameter;
6) data that obtained are carried out quantitative analysis on computers: the seismic wave parameter that extracts the exploration zone of interest, comprise energy, predominant frequency, signal to noise ratio (S/N ratio), frequency spectrum, lineups continuity parameter, normal data value as a comparison, and provide range of control, then, seismologic record and its contrast with other physical points, judge whether examination is qualified, if defective, notice is done over again, turn back to the 3rd) step, given again construction parameter; If qualified, grant and continue construction, and the storage data data;
7) output quality appraisal report.
2, the control method of field earthquake prospecting collection process according to claim 1 is characterized in that on computers the earthquake image data being carried out quantitative analysis in described step 6), and the running program of described quantitative computer analysis is carried out following steps:
(1) separates volume big gun collection, earthquake class newspaper, measurement data is imported computing machine, form database;
(2) data are carried out seismic attributes analysis, comprise energy, predominant frequency, signal to noise ratio (S/N ratio), frequency spectrum, lineups continuity;
(3) check record according to the other station in field, definition standard physical point;
(4) record and the standard physical point with other physical points compares, and draws comparison diagram relatively, extracts energy, dominant frequency, frequency range, the signal to noise ratio (S/N ratio) parameter of seismologic record, carries out the contrast of parameter value and ratio, and filtering out transfinites a little;
(5) draw spectrogram, numerical value, ratio curve map and histogram.
3. according to the method for quality control of right 2 described field earthquake prospecting collection process, it is characterized in that described step (4) as a comparison value comprise energy, predominant frequency, signal to noise ratio (S/N ratio), frequency spectrum and lineups continuity at least; Described step (5) will be drawn numerical value, ratio correlation curve figure and the histogram of energy, frequency, 3 attributes of signal to noise ratio (S/N ratio) at least.
4. according to the method for quality control of right 3 described field earthquake prospecting collection process, it is characterized in that in described step 7) that the quality assessment report of computing machine output comprises the shot point pile No. of standard physical point at least; Range of control; Transfinite a little pile No., number account for the number percent of total physical points; The correlation curve figure and the histogram of energy, frequency, signal to noise ratio (S/N ratio), and earthquake-capturing construction quality and the description of seismologic record quality.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102053271A (en) * | 2010-11-17 | 2011-05-11 | 中国石油天然气股份有限公司 | Seismic Acquisition Quality Analysis Method and Device |
| CN104977602A (en) * | 2015-06-19 | 2015-10-14 | 中国石油天然气集团公司 | Control method and apparatus for earthquake data acquisition construction |
| CN105785437A (en) * | 2016-04-26 | 2016-07-20 | 中国石油天然气集团公司 | Abnormal seismic trace automatic discriminating method and device |
| CN114240073A (en) * | 2021-11-25 | 2022-03-25 | 湖北省地震局(中国地震局地震研究所) | Micro-motion exploration construction method, system, computer equipment and storage medium |
| CN114384591A (en) * | 2020-10-21 | 2022-04-22 | 中国石油天然气股份有限公司 | Method and system for field seismic record evaluation by using attribute fusion |
| CN118259340A (en) * | 2024-04-01 | 2024-06-28 | 广州海洋地质调查局 | Ocean quasi-three-dimensional seismic acquisition method and device, electronic equipment and readable medium |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6614717B1 (en) * | 2001-08-30 | 2003-09-02 | Nonlinear Seismic Imaging, Inc. | Time-lapse seismic using nonlinear seismic imaging |
| CN1207579C (en) * | 2002-07-12 | 2005-06-22 | 中国石油集团东方地球物理勘探有限责任公司 | Time frequency field earth ground absorbing attenuation compensation method |
| CN1200286C (en) * | 2002-07-15 | 2005-05-04 | 彭苏萍 | Multiwave multi-component earthquake data collecting system |
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2006
- 2006-03-01 CN CNB2006100583123A patent/CN100485412C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102053271A (en) * | 2010-11-17 | 2011-05-11 | 中国石油天然气股份有限公司 | Seismic Acquisition Quality Analysis Method and Device |
| CN102053271B (en) * | 2010-11-17 | 2012-09-26 | 中国石油天然气股份有限公司 | Seismic Acquisition Quality Analysis Method and Device |
| CN104977602A (en) * | 2015-06-19 | 2015-10-14 | 中国石油天然气集团公司 | Control method and apparatus for earthquake data acquisition construction |
| CN105785437A (en) * | 2016-04-26 | 2016-07-20 | 中国石油天然气集团公司 | Abnormal seismic trace automatic discriminating method and device |
| CN105785437B (en) * | 2016-04-26 | 2018-03-13 | 中国石油天然气集团公司 | A kind of method and device of the automatic discrimination in Unusual Seismic road |
| CN114384591A (en) * | 2020-10-21 | 2022-04-22 | 中国石油天然气股份有限公司 | Method and system for field seismic record evaluation by using attribute fusion |
| CN114240073A (en) * | 2021-11-25 | 2022-03-25 | 湖北省地震局(中国地震局地震研究所) | Micro-motion exploration construction method, system, computer equipment and storage medium |
| CN118259340A (en) * | 2024-04-01 | 2024-06-28 | 广州海洋地质调查局 | Ocean quasi-three-dimensional seismic acquisition method and device, electronic equipment and readable medium |
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