CN104483707A - Method and device for well logging - Google Patents
Method and device for well logging Download PDFInfo
- Publication number
- CN104483707A CN104483707A CN201410705333.4A CN201410705333A CN104483707A CN 104483707 A CN104483707 A CN 104483707A CN 201410705333 A CN201410705333 A CN 201410705333A CN 104483707 A CN104483707 A CN 104483707A
- Authority
- CN
- China
- Prior art keywords
- data
- log data
- receiving element
- log
- sound source
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
The invention relates to a method and a device for well logging. The method comprises the following steps of arranging a sound source and at least one receiver in a to-be-explored well; when the sound source excites a wave field, enabling a first receiving unit to collect first well logging data, enabling a second receiving unit to collect second well logging data, enabling a third receiving unit to collect third well logging data, and enabling a fourth receiving unit to collect fourth well logging data; combining the first well logging data, the second well logging data, the third well logging data and the fourth well logging data to obtain unipole type receiving data, X-axis dipole type receiving data and Y-axis dipole type receiving data; according to the form of the sound source and the unipole type receiving data, the X-axis dipole type receiving data and the Y-axis dipole type receiving data, obtaining the conventional well logging data and the remote-exploration well logging data. The method provided by the embodiment has the advantages that the amplitude of well outside reflecting wave relative to well inside direct wave is greatly improved, and the well outside geological structure is accurately and effectively imaged.
Description
Technical field
The present invention relates to geophysical well logging field, particularly relate to a kind of logging method based on one pole dipole mixed mode of operation and device.
Background technology
Along with deepening continuously of oil-gas exploration and development, people to the resolution of geophysical information and accuracy requirement more and more higher, although conventional logging technology resolution and precision are all very high, by the restriction of investigative range with detection yardstick, conventional logging technology cannot detect the area beyond Around A Borehole.
In well, be called Detection Techniques far away by acoustic logging to several meters of technology of carrying out reflection wave imaging to the stratigraphic structure within the scope of tens of meters and geologic body around well, it brings up to tens meters the measurement range of conventional logging technology from apart from the borehole wall about a meter.This Detection Techniques application prospect far away is very huge, can be used for showing the geological interface crossing with well; Tilted strata interface, crack, tomography etc. that detecting shaft is other; Can also be used to follow the trail of oil storage border etc. at horizontal well.
The Detection Techniques far away of sound wave divide one pole normal beam technique and dipole shear wave method two kinds.One pole normal beam technique to utilize in well monopole sound source to the extraradial compressional wave of well, and adopt one pole to receive the reflection wave be reflected back through well external reflection body in well, wherein the frequency of source of one pole compressional wave is generally at about 10kHz, but the wave attenuation of upper frequency causes the investigative range of one pole normal beam technique limited, be about the scope of several meters to ten several meters, and non-directional due to monopole sound source radiation, make the orientation that can not determine reflecting body; Dipole shear wave method is the Detection Techniques far away that development in recent years is got up, the frequency used is about 3-5kHz, even lower, because frequency is lower, the method has darker detection range, can reach the scope of tens meters, in addition, because the directive property of sound source of the dipole has directivity, the method not only can determine the position of emitter, can also determine that it moves towards.
But, in well, carry out sound wave far detect, no matter be for one pole normal beam technique (one pole excites one pole to receive), or the dipole shear wave method (reception of dipole excitation dipole) to newly-developed, all there is significant limitation, namely mode wave in well is compared, reflected signal is general very little, and mode wave is superimposed in normal and well, can be suppressed when digitizing or lose details, if particularly reflection wave and direct wave are when then going up overlap, more weak reflection wave signal is perhaps submerged in direct wave, therefore current detection operations pattern far away is often not fully up to expectations in real data process, and then limit widely using of existing sound wave Detection Techniques far away.
Summary of the invention
The object of the invention is to solve in existing logging technology, reflection wave signal is general very little, and mode wave is superimposed in normal and well, can suppress or lose when digitizing, if particularly reflection wave and direct wave are when then going up overlap, more weak reflection wave signal is perhaps submerged in the problem in direct wave.
First aspect, embodiments provide a kind of logging method, described method comprises: in well to be detected, arrange sound source and at least one receiver, wherein, described receiver comprises four receiving elements that circumference is arranged at equal intervals, the first receiving element in described four receiving elements and the 3rd receiving element are positioned at X-axis, and the second receiving element in described four receiving elements and the 4th receiving element are positioned at Y-axis;
When described sound source excites wave field, described first receiving element gathers the first log data, and the second receiving element gathers the second log data, and the 3rd receiving element gathers the 3rd log data, and the 4th receiving element gathers the 4th log data;
Combine described first log data, the second log data, the 3rd log data and the 4th log data, obtain monopolar type and receive data, X-direction dipole type receives data and Y-direction dipole type receives data;
According to form and described monopolar type reception data, X-direction dipole type reception data, the Y-direction dipole type reception data of described sound source, obtain conventional logging data and far detect log data.
Preferably, described sound source specifically comprises: monopole or dipole source.
Preferably, described described first log data, the second log data, the 3rd log data and the 4th log data to be combined, obtain that monopolar type receives data, X-direction dipole type receives data and Y-direction dipole type receives data and specifically comprises:
Described first log data, the second log data, the 3rd log data and the 4th log data are added and obtain monopolar type reception data;
Described first log data and the 3rd log data are subtracted each other and obtains X-direction dipole type reception data;
Described second log data and described 4th log data are subtracted each other and obtains Y-direction dipole type reception data.
Preferably, when described sound source is monopole, it is conventional logging data that described monopolar type receives data, and described X-direction dipole type receives data and described Y-direction dipole type receives data for far to detect log data.
Preferably, when described sound source is dipole source, described monopolar type receives data for far to detect log data, and described X-direction dipole type receives data and described Y-direction dipole type reception data are conventional logging data.
Second aspect, embodiments provides a kind of well logging apparatus, and described device comprises: arrangement unit, collecting unit, assembled unit, generation unit;
Described arrangement unit, for arranging sound source and at least one receiver in well to be detected, wherein, described receiver comprises four receiving elements that circumference is arranged at equal intervals, the first receiving element in described four receiving elements and the 3rd receiving element are positioned at X-axis, and the second receiving element in described four receiving elements and the 4th receiving element are positioned at Y-axis;
Described collecting unit, for when described sound source excites wave field, described first receiving element gathers the first log data, and the second receiving element gathers the second log data, and the 3rd receiving element gathers the 3rd log data, and the 4th receiving element gathers the 4th log data;
Described assembled unit, for combining described first log data, the second log data, the 3rd log data and the 4th log data, obtaining monopolar type and receiving data, X-direction dipole type receives data and Y-direction dipole type receives data;
Described generation unit, for form and the described monopolar type reception data according to described sound source, X-direction dipole type receives data, Y-direction dipole type receives data, obtains conventional logging data and far detects log data.
Preferably, described sound source specifically comprises: monopole or dipole source.
Preferably, described assembled unit specifically for, to described first log data, the second log data, the 3rd log data and the 4th log data be added obtain monopolar type receive data;
Described first log data and the 3rd log data are subtracted each other and obtains X-direction dipole type reception data;
Described second log data and described 4th log data are subtracted each other and obtains Y-direction dipole type reception data.
Preferably, described generation unit specifically for, when described sound source is monopole, it is conventional logging data that described monopolar type receives data, and described X-direction dipole type receives data and described Y-direction dipole type receives data for far to detect log data.
Preferably, described generation unit specifically for, when described sound source is dipole source, described monopolar type receives data for far to detect log data, and described X-direction dipole type receives data and described Y-direction dipole type reception data are conventional logging data.
The present invention is by introducing a kind of new data acquisition scheme (one pole dipole hybrid working), and well external reflection ripple has had enhancing relative to wave amplitude through in well, is conducive to the Extraction and isolation of reflection wave signal; In addition, because instrument gain is not by the impact of direct wave in high amplitude well, reflection wave signal can effectively be amplified in well, improves the quantified precision of reflection wave and the suppression to transmitted noise, further increases accuracy and the reliability of Detection Techniques far away; Second, for the reflecting body that distance measurement well is nearer, in conventional data acquisition pattern, in well, direct wave is overlapping more serious with well external reflection ripple, be difficult to effective separation, and then all there is certain detection blind area in different detection instruments far away, by introducing new data acquisition scheme, also can accurate recording to reflected signal corresponding to the reflecting body in detection blind area, improve the recognition capability far detected nearly borehole wall reflecting interface; 3rd, in current acoustic logging, sometimes both needed to have carried out conventional logging task (measurement of such as formation velocity), and also needed to carry out imaging to well external reflection body.In this case, in order to record the information of go into the well middle direct wave and well external reflection ripple simultaneously, need the well-logging length taking overlength, and then cause larger data transmission pressure, also have impact on the speed of conventional logging operation accordingly.The collection of the collection of conventional logging data and detection data far away, by introducing one pole dipole mixed mode of operation, is separated, is independent of each other by the present invention, walks abreast and carries out.Data acquisition and transmission can be carried out like this: if only conventional logging operation need be carried out according to the demand of logging operation, then the part of conventional logging record length in described reception data (monopolar type or dipole type receive data) carried out to digitizing and is real-time transmitted to surface acquisition system, ensure that the speed of conventional logging operation.And if need to gather conventional logging data simultaneously and far detect log data, then far detecting log data adopts longer acquisition window to gather, and selects real-time Transmission or concentration of transmissions after being stored in instrument according to cable transmission speed; Routine data still adopts conventional logging data acquisition length to carry out gathering and transmitting.
Accompanying drawing explanation
The logging method process flow diagram that Fig. 1 provides for the embodiment of the present invention;
Each receiving element arrangement schematic diagram in the receiver that Fig. 2 provides for the embodiment of the present invention;
Fig. 3 is each receiving element array mode schematic diagram that the embodiment of the present invention provides;
Fig. 4 a be the embodiment of the present invention provide when monopole, monopolar type receives data, X-direction dipole type receives data, Y-direction dipole type receives well logging type corresponding to data;
Fig. 4 b be the embodiment of the present invention provide dipole source time, monopolar type receives data, X-direction dipole type receives data, Y-direction dipole type receives well logging type corresponding to data;
Fig. 5 is that the detection far away that the embodiment of the present invention provides calculates model schematic;
Fig. 6 be the embodiment of the present invention provide monopole time, conventional logging waveform;
Fig. 7 be the embodiment of the present invention provide monopole time, detection well logging waveform far away;
Fig. 8 be the embodiment of the present invention provide monopole time, distance sound source 4.5m place receiving element P1 and P3 waveform separately subtracts each other obtained waveform with it;
Fig. 9 be the embodiment of the present invention provide dipole source time, conventional logging waveform;
Figure 10 be the embodiment of the present invention provide dipole source time, detection well logging waveform far away;
Figure 11 is the well logging apparatus schematic diagram that the embodiment of the present invention provides.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
For ease of the understanding to the embodiment of the present invention, be further explained explanation below in conjunction with accompanying drawing with specific embodiment, embodiment does not form the restriction to the embodiment of the present invention.
Below for the logging method that Fig. 1 detailed description embodiment of the present invention provides, the logging method process flow diagram that Fig. 1 provides for the embodiment of the present invention.As shown in Figure 1, this embodiment specifically comprises the following steps:
S101, sound source and at least one receiver is arranged in well to be detected, wherein, described receiver comprises four receiving elements that circumference is arranged at equal intervals, the first receiving element in described four receiving elements and the 3rd receiving element are positioned at X-axis, and the second receiving element in described four receiving elements and the 4th receiving element are positioned at Y-axis;
Particularly, as shown in Figure 2, each receiving element arrangement schematic diagram in the receiver that provides for the embodiment of the present invention of Fig. 2.In fig. 2, comprise multiple receiver, each receiver comprises the first receiving element P1, the second receiving element P2, the 3rd receiving element P3 and the 4th receiving element P4, the position relationship of these 4 receiving elements as shown in the figure, in the detecting shaft taking borehole axis as Z axis, the first receiving element P1 can be set and the 3rd receiving element P3 is positioned at X-axis, set the second receiving element P2 and the 4th receiving element P4 and be positioned at Y-axis.
S102, when described sound source excites wave field, described first receiving element gathers the first log data, and the second receiving element gathers the second log data, and the 3rd receiving element gathers the 3rd log data, and the 4th receiving element gathers the 4th log data;
Concrete, sound source can be monopole or dipole source.
S103, combines described first log data, the second log data, the 3rd log data and the 4th log data, obtains monopolar type and receives data, and X-direction dipole type receives data and Y-direction dipole type receives data;
Particularly, as shown in Figure 3, described first log data, the second log data, the 3rd log data and the 4th log data are added and obtain monopolar type reception data, described first log data and the 3rd log data are subtracted each other and obtains X-direction dipole type reception data, described second log data and described 4th log data are subtracted each other and obtains Y-direction dipole type reception data.
S104, according to form and the described monopolar type reception data of described sound source, X-direction dipole type receives data, and Y-direction dipole type receives data, obtains conventional logging data and far detects log data.
Particularly, as shown in fig. 4 a, when described sound source is monopole, it is conventional logging data that described monopolar type receives data, and described X-direction dipole type receives data and described Y-direction dipole type receives data for far to detect log data.
Wherein, for monopole, what monopolar type received data record is conventional logging data, and it is then the detection log data far away that inhibit direct wave in well that the dipole type of X and Y-direction receives data.
As shown in Figure 4 b, when described sound source is dipole source, described monopolar type receives data for far to detect log data, and described X-direction dipole type receives data and described Y-direction dipole type reception data are conventional logging data.
Wherein, for dipole source, what monopolar type received data records is far detect log data, the dipole logging data of routine that what the dipole type of X and Y-direction received data record be then.
More than show, conventional logging data are collected by mode of operation general in current acoustic logging, and namely monopole excites monopolar type to receive, and dipole source excites dipole type to receive.And far to detect log data be by one pole dipole mixed mode of operation, namely one pole source excitation dipole type receives, and dipole source excites monopolar type to receive and collects.One pole dipole mixed mode of operation in the embodiment of the present invention is by direct wave and well external reflection ripple in the demand difference production wells of practical logging operation, walk abreast and carry out, do not interfere with each other, this self-adaptation to respective signal amplify and quantize and follow-up data processing very favourable.
S105, to conventional logging data with far detect log data and carries out data respectively and transmit and process.
Particularly, can real-time Transmission and site disposal to conventional logging data, and apply conventional logging process software and evaluate.Concerning detection log data far away, if data rate meets the demands, then carry out real-time Transmission, if transmission speed can not reach requirement, be then stored in instrument, concentrate again after all having measured and read, unified process, and application detection far away logging data processing software is evaluated.
The logging method that the embodiment of the present invention provides is by introducing a kind of new data acquisition scheme (one pole dipole hybrid working), and well external reflection ripple has had enhancing relative to wave amplitude through in well, is conducive to the Extraction and isolation of reflection wave signal; In addition, because instrument gain is not by the impact of direct wave in high amplitude well, reflection wave signal can effectively be amplified in well, improve the amplitude of well external reflection ripple relative to direct wave in well, improve the quantified precision of reflection wave and the suppression to transmitted noise, and then accurate and effective imaging is carried out to the outer tectonic structure of well, further increase accuracy and the reliability of Detection Techniques far away; Second, for the reflecting body that distance measurement well is nearer, in conventional data acquisition pattern, in well, direct wave is overlapping more serious with well external reflection ripple, be difficult to effective separation, and then all there is certain detection blind area in different detection instruments far away, by introducing new data acquisition scheme, also can accurate recording to reflected signal corresponding to the reflecting body in detection blind area, improve the recognition capability far detected nearly borehole wall reflecting interface; 3rd, in current acoustic logging, sometimes both needed to have carried out conventional logging task (measurement of such as formation velocity), and also needed to carry out imaging to well external reflection body.In this case, in order to record the information of go into the well middle direct wave and well external reflection ripple simultaneously, need the well-logging length taking overlength, and then cause larger data transmission pressure, also have impact on the speed of conventional logging operation accordingly.The collection of conventional logging data and the collection far detecting log data, by introducing one pole dipole mixed mode of operation, are separated, are independent of each other, walk abreast and carry out by the present invention.Data acquisition and transmission can be carried out like this: if only conventional logging operation need be carried out according to the demand of logging operation, then the part of conventional logging record length in described reception data (monopolar type or dipole type receive data) carried out to digitizing and is real-time transmitted to surface acquisition system, ensure that the speed of conventional logging operation.And if need to gather conventional logging data simultaneously and far detect log data, then far detecting log data adopts longer acquisition window to gather, and selects real-time Transmission or concentration of transmissions after being stored in instrument according to cable transmission speed; Routine data still adopts conventional logging data acquisition length to carry out gathering and transmitting.
Below respectively to sound source be one pole source and dipole source time, conventional logging is described with the waveform far detected.
The first situation:
When one pole source, utilize the well logging waveform that Three dimensional finite difference analog computation different data acquisition mode obtains, model as shown in Figure 5, Fig. 5 is that the detection far away that the embodiment of the present invention provides calculates model schematic, in Figure 5, the size of model is x=6.5m, y=3m, z=10.5m, and liquid-filled well bore radius is 0.1m, well is centrally located at x=y=1.5m place, and sound source is positioned at z=0.5m place.Adopt Moving grids finite difference, near wellbore grid is 0.01m, well outward remotely grid be 0.015m, time step is 1.0 μ s.Geological interface is distributed in the right side of logging instrumentation; The monopole transmitters centre frequency of logging instrumentation is 8kHz, and receiver array is in the side of sound source, and each receiver is all containing four receiving elements (P1, P2, P3, P4) of showing in Fig. 2.The velocity of longitudinal wave on stratum 1 is 3000m/s, and shear wave velocity is 1800m/s, and density is 2000kg/m
3; The velocity of longitudinal wave on stratum 2 and shear wave velocity are then 4500m/s and 2650m/s respectively, and density is 2400kg/m
3; The velocity of sound of FIH is 1500m/s, and density is 1000kg/m
3.
In well, arrange that monopole excites wave field, four receiving elements that each receiver is corresponding gather log data respectively.Combine the data that four receiving elements (P1, P2, P3, P4) receive, obtain three groups of data respectively: monopolar type receives data, X-direction dipole type receives data, and Y-direction dipole type receives data.
It is the data obtained under conventional data acquisition pattern, i.e. conventional logging data that monopolar type receives data; It is the data utilizing one pole dipole mixed mode of operation to obtain that X-direction and Y-direction dipole type receive data, namely far detects log data.
Fig. 6 be the embodiment of the present invention provide monopole time, conventional logging waveform.The then curve that theory calculate obtains direct wave in dissimilar well is also show in Fig. 6, corresponding preferably with analog result.As can see from Figure 6, direct wave in the wells such as compressional wave, shear wave and Stoneley wave is contained in conventional dipole wavelet (i.e. conventional logging data); And compared with direct wave in well, the echo amplitude come outside artesian well is very little, this is comparatively large mainly due to the impedance contrast in fast stratum between well and stratum, and the acoustic energy be radiated in well outside well is limited.And under actual conditions, if consider decay, reflection wave amplitude will be less.And Stoneley wave overlaps in the reflection wave come outside artesian well and well, cause difficulty thus to follow-up reflection wave record and extraction.In view of this, the waveform gathered under conventional logging pattern is mainly direct wave in well, may be used for traditional acoustic logging operation, as the measurement of formation velocity and the extraction of formation parameter (factor of porosity, permeability).
Fig. 7 be the embodiment of the present invention provide monopole time, detection well logging waveform far away, in the figure 7, receives the difference that waveform is the first receiving element P1 and the 3rd receiving element P3 two receiving elements.Ask poor process to have decayed the first receiving element signal identical with polarity on the 3rd receiving element (being mainly direct-path signal in the well that monopole excites in this example), therefore the reflection wave fallen into oblivion under the Stoneley wave that amplitude is very strong is manifested originally.The then curve that theory of correspondences calculates clearly can identify well external reflection compressional wave and reflection wave, and reflected signal, after gain-adjusted, is sent into analog to digital converter and quantized, finally the digitalized data after quantification is propagated into surface acquisition system.To the data analysis process comprising stratum reflection wave signal that this mixed mode of operation gathers, the accurate location of geology reflecting interface can be obtained further.
In order to set forth principle of work of the present invention further, extract the waveform that distance sound source 4.5 meters of receivers receive, as shown in Figure 8, Fig. 8 be the embodiment of the present invention provide monopole time, distance sound source 4.5m place receiving element P1 and P3 waveform separately subtracts each other obtained waveform with it, in fig. 8, dotted line represents that the waveform that single receiving element (P1 or P3) receives, solid line are the waveform that two receiving elements subtract each other (P1-P3) and obtain.As can be seen from Figure 8, represent that two articles of dotted lines of the first receiving element P1 waveform and the 3rd receiving element P3 waveform almost overlap completely, this be due to: in the wave field that monopole excites, be positioned at the same degree of depth, identical about direct wave response in the well that axisymmetric two receiving element P1 and the P3 of well receive, and the direct wave that two receiving elements receive is occupied an leading position (much larger than reflection wave amplitude) in waveform, what therefore the first receiving element P1 showed with the 3rd receiving element P3 waveform almost overlaps.And by subtracting each other, the signal that the first receiving element P1 is identical with the 3rd receiving element P3 Semi-polarity is weakened (in the well mainly excited by monopole here direct wave), the well external reflection ripple only in remaining Fig. 8 shown in solid line.In view of this, to be excited, mixed mode of operation that dipole receives by monopole, well external reflection ripple has had enhancing relative to wave amplitude through in well, is conducive to the Extraction and isolation of reflection wave signal.
In addition, then known then with reflected P-wave in Fig. 7 of Stoneley wave in comparison diagram 6, for the nearer reflecting body (in the present embodiment being 3 meters) of distance borehole axis, reflection wave comparatively seriously, is difficult to effective separation with direct wave in well at aliasing within the scope of spacing of logging well.Excited by monopole, dipole receive mixed mode of operation, the reflected signal corresponding to this reflecting body also can carry out accurate recording.
The second situation:
When dipole source, computation model as shown in Figure 5.Adopt Moving grids finite difference, near wellbore grid is 0.01m, well outward remotely grid be 0.015m, time step is 1.2 μ s.Dipole source is oriented to X-axis, and centre frequency is 3kHz.The velocity of longitudinal wave on stratum 1 is 2000m/s, and shear wave velocity is 600m/s, and density is 2000kg/m
3; The velocity of longitudinal wave on stratum 2 and shear wave velocity are then 3800m/s and 2000m/s respectively, and density is 2150kg/m
3; The velocity of sound of FIH is 1500m/s, and density is 1000kg/m
3.Parameter when other parameters and monopole situation is identical.
In well, arrange that dipole source excites wave field, four receiving elements that each receiver is corresponding gather log data respectively.Combine the data that four receiving elements (P1, P2, P3, P4) receive, obtain three groups of data respectively: monopolar type receives data, X-direction dipole type receives data, and Y-direction dipole type receives data.
When sound source is dipole source, from S103: it is the data obtained under conventional data acquisition pattern, i.e. conventional logging data that X-direction Y-direction dipole type receives data; It is the data utilizing one pole dipole mixed mode of operation to obtain that monopolar type receives data, for far detecting log data.
Fig. 9 be the embodiment of the present invention provide dipole source time, conventional logging waveform.As can see from Figure 9, containing direct wave in the well such as compressional wave and flexural wave in the conventional dipole wave train, and flexural wave intensity is greater than well external reflection compressional wave, the dipole waveform gathered under conventional logging pattern may be used for conventional dipole logging operation, as stratum shear wave velocity and the isoparametric measurement of formation anisotropy.In the present embodiment, well external reflection compressional wave can be identified from conventional logging waveform, this be due in slowly layer between well and stratum impedance less, thus reflect wave intensity and be greater than the situation on fast stratum in the first situation, to be also Detection Techniques far away apply the reason being better than fast stratum in slowly layer for this.
Figure 10 be the embodiment of the present invention provide dipole source time, detection well logging waveform far away.In Fig. 10, the waveform of four receiving elements is superposed, weaken the contrary signal of each receiving element Semi-polarity (being mainly direct wave in the well that dipole source excites in the present embodiment), in well, direct wave is effectively suppressed, and well external reflection ripple has had relative to the amplitude of mode wave in well and improves largely.
Figure 11 is the well logging apparatus schematic diagram that the embodiment of the present invention provides, and as shown in figure 11, the present embodiment comprises: arrangement unit 1101, collecting unit 1102, assembled unit 1103, generation unit 1104;
Described arrangement unit 1101, for arranging sound source and at least one receiver in well to be detected, wherein, described receiver comprises four receiving elements that circumference is arranged at equal intervals, the first receiving element in described four receiving elements and the 3rd receiving element are positioned at X-axis, and the second receiving element in described four receiving elements and the 4th receiving element are positioned at Y-axis;
Described collecting unit 1102, for when described sound source excites wave field, described first receiving element gathers the first log data, and the second receiving element gathers the second log data, 3rd receiving element gathers the 3rd log data, and the 4th receiving element gathers the 4th log data;
Described assembled unit 1103, for combining described first log data, the second log data, the 3rd log data and the 4th log data, obtaining monopolar type and receiving data, X-direction dipole type reception data and Y-direction dipole type reception data;
Described generation unit 1104, for receiving data according to the form of described sound source and described monopolar type, X-direction dipole type receives data, and Y-direction dipole type receives data, obtains conventional logging data and far detects log data.
Alternatively, described sound source specifically comprises: monopole or dipole source.
Alternatively, described assembled unit 1103 specifically for,
Described first log data, the second log data, the 3rd log data and the 4th log data are added and obtain monopolar type reception data;
Described first log data and the 3rd log data are subtracted each other and obtains X-direction dipole type reception data;
Described second log data and described 4th log data are subtracted each other and obtains Y-direction dipole type reception data.
Alternatively, described generation unit 1104 specifically for, when described sound source is monopole, it is conventional logging data that described monopolar type receives data, and described X-direction dipole type receives data and described Y-direction dipole type receives data for far to detect log data.
Alternatively, described generation unit 1104 specifically for, when described sound source is dipole source, described monopolar type receives data for far to detect log data, and described X-direction dipole type receives data and described Y-direction dipole type reception data are conventional logging data.
Professional should recognize further, in conjunction with unit and the algorithm steps of each example of embodiment disclosed herein description, can realize with electronic hardware, computer software or the combination of the two, in order to the interchangeability of hardware and software is clearly described, generally describe composition and the step of each example in the above description according to function.These functions perform with hardware or software mode actually, depend on application-specific and the design constraint of technical scheme.Professional and technical personnel can use distinct methods to realize described function to each specifically should being used for, but this realization should not thought and exceeds scope of the present invention.
The software module that the method described in conjunction with embodiment disclosed herein or the step of algorithm can use hardware, processor to perform, or the combination of the two is implemented.Software module can be placed in the storage medium of other form any known in random access memory (RAM), internal memory, ROM (read-only memory) (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technical field.
Above-described embodiment; object of the present invention, technical scheme and beneficial effect are further described; be understood that; the foregoing is only the specific embodiment of the present invention; the protection domain be not intended to limit the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a logging method, is characterized in that, described method comprises:
Sound source and at least one receiver is arranged in well to be detected, wherein, described receiver comprises four receiving elements that circumference is arranged at equal intervals, the first receiving element in described four receiving elements and the 3rd receiving element are positioned at X-axis, and the second receiving element in described four receiving elements and the 4th receiving element are positioned at Y-axis;
When described sound source excites wave field, described first receiving element gathers the first log data, and the second receiving element gathers the second log data, and the 3rd receiving element gathers the 3rd log data, and the 4th receiving element gathers the 4th log data;
Described first log data, the second log data, the 3rd log data and the 4th log data are combined, obtains monopolar type and receive data, X-direction dipole type reception data and Y-direction dipole type reception data;
According to form and described monopolar type reception data, X-direction dipole type reception data, the Y-direction dipole type reception data of described sound source, obtain conventional logging data and far detect log data.
2. method according to claim 1, is characterized in that, described sound source specifically comprises: monopole or dipole source.
3. method according to claim 1, it is characterized in that, described described first log data, the second log data, the 3rd log data and the 4th log data to be combined, obtain that monopolar type receives data, X-direction dipole type receives data and Y-direction dipole type receives data and specifically comprises:
Described first log data, the second log data, the 3rd log data and the 4th log data are added and obtain monopolar type reception data;
Described first log data and the 3rd log data are subtracted each other and obtains X-direction dipole type reception data;
Described second log data and described 4th log data are subtracted each other and obtains Y-direction dipole type reception data.
4. method according to claim 2, is characterized in that, when described sound source is monopole, it is conventional logging data that described monopolar type receives data, and described X-direction dipole type receives data and described Y-direction dipole type receives data for far to detect log data.
5. method according to claim 2, is characterized in that, when described sound source is dipole source, described monopolar type receives data for far to detect log data, and described X-direction dipole type receives data and described Y-direction dipole type reception data are conventional logging data.
6. a well logging apparatus, is characterized in that, described device comprises: arrangement unit, collecting unit, assembled unit, generation unit;
Described arrangement unit, for arranging sound source and at least one receiver in well to be detected, wherein, described receiver comprises four receiving elements that circumference is arranged at equal intervals, the first receiving element in described four receiving elements and the 3rd receiving element are positioned at X-axis, and the second receiving element in described four receiving elements and the 4th receiving element are positioned at Y-axis;
Described collecting unit, for when described sound source excites wave field, described first receiving element gathers the first log data, and the second receiving element gathers the second log data, and the 3rd receiving element gathers the 3rd log data, and the 4th receiving element gathers the 4th log data;
Described assembled unit, for combining described first log data, the second log data, the 3rd log data and the 4th log data, obtaining monopolar type and receiving data, X-direction dipole type reception data and Y-direction dipole type reception data;
Described generation unit, for receiving data according to the form of described sound source and described monopolar type, X-direction dipole type receives data, and Y-direction dipole type receives data, obtains conventional logging data and far detects log data.
7. device according to claim 6, is characterized in that, described sound source specifically comprises: monopole or dipole source.
8. device according to claim 6, is characterized in that, described assembled unit specifically for,
Described first log data, the second log data, the 3rd log data and the 4th log data are added and obtain monopolar type reception data;
Described first log data and the 3rd log data are subtracted each other and obtains X-direction dipole type reception data;
Described second log data and described 4th log data are subtracted each other and obtains Y-direction dipole type reception data.
9. device according to claim 7, it is characterized in that, described generation unit specifically for, when described sound source is monopole, it is conventional logging data that described monopolar type receives data, and described X-direction dipole type receives data and described Y-direction dipole type receives data for far to detect log data.
10. device according to claim 7, it is characterized in that, described generation unit specifically for, when described sound source is dipole source, described monopolar type receives data for far to detect log data, and described X-direction dipole type receives data and described Y-direction dipole type reception data are conventional logging data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410705333.4A CN104483707B (en) | 2014-11-26 | 2014-11-26 | A kind of single dipole mixed method and device for being used to far detect well logging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410705333.4A CN104483707B (en) | 2014-11-26 | 2014-11-26 | A kind of single dipole mixed method and device for being used to far detect well logging |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104483707A true CN104483707A (en) | 2015-04-01 |
| CN104483707B CN104483707B (en) | 2018-03-23 |
Family
ID=52758272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410705333.4A Active CN104483707B (en) | 2014-11-26 | 2014-11-26 | A kind of single dipole mixed method and device for being used to far detect well logging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104483707B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106930758A (en) * | 2017-03-30 | 2017-07-07 | 中国科学院声学研究所 | A kind of acoustic logging-while-drillidevice device and its method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4813028A (en) * | 1987-07-07 | 1989-03-14 | Schlumberger Technology Corporation | Acoustic well logging method and apparatus |
| CN1418316A (en) * | 2000-03-29 | 2003-05-14 | 施蓝姆伯格海外股份有限公司 | Dipole logging tool |
| CN1460190A (en) * | 2000-11-16 | 2003-12-03 | 施蓝姆伯格海外股份有限公司 | Sonic logging tool including receiver and spacer structure |
| CN2621300Y (en) * | 2003-06-03 | 2004-06-23 | 中海油田服务股份有限公司 | Multi-pole subarray acoustic logging changer |
| US20040158997A1 (en) * | 2003-01-29 | 2004-08-19 | Baker Hughes Incorporated | Imaging near-borehole structure using directional acoustic-wave measurement |
-
2014
- 2014-11-26 CN CN201410705333.4A patent/CN104483707B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4813028A (en) * | 1987-07-07 | 1989-03-14 | Schlumberger Technology Corporation | Acoustic well logging method and apparatus |
| CN1418316A (en) * | 2000-03-29 | 2003-05-14 | 施蓝姆伯格海外股份有限公司 | Dipole logging tool |
| CN1460190A (en) * | 2000-11-16 | 2003-12-03 | 施蓝姆伯格海外股份有限公司 | Sonic logging tool including receiver and spacer structure |
| US20040158997A1 (en) * | 2003-01-29 | 2004-08-19 | Baker Hughes Incorporated | Imaging near-borehole structure using directional acoustic-wave measurement |
| CN2621300Y (en) * | 2003-06-03 | 2004-06-23 | 中海油田服务股份有限公司 | Multi-pole subarray acoustic logging changer |
Non-Patent Citations (1)
| Title |
|---|
| 赵立新 等: "《声波测井新技术及应用实践》", 31 August 2012, 石油工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106930758A (en) * | 2017-03-30 | 2017-07-07 | 中国科学院声学研究所 | A kind of acoustic logging-while-drillidevice device and its method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104483707B (en) | 2018-03-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Tang et al. | Processing array acoustic-logging data to image near-borehole geologic structures | |
| CN103147747B (en) | Acoustic logging-while-drilling device and acoustic logging-while-drilling method | |
| CN102508299B (en) | Remote exploration method for transmitting and receiving dipole transverse waves in well | |
| CN108957521B (en) | Long-distance three-dimensional advanced geological prediction method for tunnel | |
| CN101568856A (en) | Sub-salt reflection tomography and imaging by walkaway VSP survey | |
| CN102866417A (en) | Device and method for seismic cross hole computed tomography (CT) detection and tomography of underground cave | |
| CN106443766A (en) | 3 dimensional tunnel earthquake advance seismic method | |
| CN202837558U (en) | Underground karst cave earthquake cross-hole CT (computer tomography) detection and tomographic imaging device | |
| Haldorsen et al. | Borehole acoustic reflection survey (BARS) using full waveform sonic data | |
| CN105317434A (en) | Borehole ultrasonic reflection three-dimensional detection apparatus and method | |
| CN104533396A (en) | Remote exploration sound wave processing method | |
| CN102720484B (en) | A kind of acoustic logging while drilling instrument and logging method | |
| CN102073061B (en) | Ground microphone information high-density recording system using digital ground microphone | |
| CN106526678B (en) | A kind of wave field separation method and device of reflected acoustic wave well logging | |
| CN102955170A (en) | Drilling hole acoustic radar detection method and drilling hole acoustic radial scanning probe | |
| CN107642114A (en) | Stake bottom hidden danger method for surveying and its prospecting apparatus before pile foundation cast | |
| CN105676279A (en) | Earthquake reflection data collection method with concentric-circle equivalent shot-geophone distance | |
| Pan et al. | Reflection signals and wellbore scattering waves in acoustic logging while drilling | |
| RU2608636C1 (en) | Device for determining density without a source, methods and systems | |
| CN101100940A (en) | Regular arrays sound signal detection system and its engineering uses | |
| CN104781699A (en) | Intra-bed source vertical seismic profiling | |
| CN106597549B (en) | A kind of back wave extracting method and device, borehole acoustic reflection imaging instrument | |
| CN109541689B (en) | Method for evaluating compactness of medium based on reflected wave energy characteristics | |
| CN104483707A (en) | Method and device for well logging | |
| CN207829030U (en) | Stake bottom hidden danger prospecting apparatus before pile foundation cast |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |