CN204691763U - Acoustic logging-while-drillidevice device - Google Patents
Acoustic logging-while-drillidevice device Download PDFInfo
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- CN204691763U CN204691763U CN201520212566.0U CN201520212566U CN204691763U CN 204691763 U CN204691763 U CN 204691763U CN 201520212566 U CN201520212566 U CN 201520212566U CN 204691763 U CN204691763 U CN 204691763U
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Abstract
The utility model embodiment relates to a kind of acoustic logging-while-drillidevice device, and described device comprises: drill collar, be arranged on transmitting transducer on drill collar and receiving transducer; Transmitting transducer, comprises the first radiation metal block, the first test metal block and multiple emission type piezoelectric ceramic piece; Receiving transducer, comprises the second radiation metal block, the second test metal block and multiple receiving type piezoelectric ceramic piece.The device that the utility model embodiment provides, utilize the Acoustic multipole sources mode of operation that monopole, dipole and quadrapole form, directly can measure the parameters such as stratum compressional wave, shear wave, the Stoneley wave velocity of sound and decay, both can mutually with reference to checking, also can process separately, substantially increase confidence level and the range of application of device.
Description
Technical field
The utility model relates to SVEL field of measuring technique, particularly relates to a kind of acoustic logging-while-drillidevice device.
Background technology
In recent years, along with global industry is to the increase of oil demand amount, in oil exploration, high angle hole and horizontal well drilling become increasingly active, and logging while drilling technology develops rapidly, and nearly all open hole well wireline logging project all can be undertaken by the mode of well logging during.Acoustic logging while drilling technology is one of important method in logging while drilling technology, has the advantages that brill limit, limit is surveyed.This technology utilizes the transmitting transducer be arranged on drill collar to launch sound wave in downhole drill construction operation process, propagate in the earth formation through mud, after the decay of certain hour, the receiving transducer be installed on drill collar receives, by to receive receive MUT to acoustic wavetrain analyze, judge formation information with this.
In acoustic logging while drilling process, the acquisition aspect that transducer group is combined in stratum acoustic intelligence has played key effect, and therefore, in acoustic logging-while-drillidevice device, transducer is core component.Due to complexity and the severe particular surroundings of acoustic logging while drilling, the design of acoustic logging while drilling transducer, making and assembling is made to have larger challenge.
In prior art, acoustic logging while drilling instrument adopts monopole and dipole mode of operation usually, and one pole well logging cannot obtain shear wave information at soft formation, dipole is as sound source, dipole wave and drill collar ripple easily overlapping, cause the interference of electrode couple wavelet, cannot formation information be accurately measured.
Summary of the invention
The purpose of this utility model is to provide a kind of acoustic logging-while-drillidevice device, and the acoustic full-range utilizing the acoustic logging while drilling technology in drilling process to obtain, asks for formation parameter information.
First aspect, the utility model provides a kind of acoustic logging-while-drillidevice device, and described device comprises: drill collar, be arranged on transmitting transducer on drill collar and receiving transducer;
Described transmitting transducer, comprises the first radiation metal block of being arranged on two ends and the first test metal block, the first metal splint in centre, lays respectively at the first radiation metal block, multiple emission type piezoelectric ceramic pieces between the first test metal block and the first metal splint;
Described receiving transducer, comprises the second radiation metal block of being arranged on two ends and the second test metal block, the second metal splint in centre, lays respectively at the second radiation metal block, multiple receiving type piezoelectric ceramic pieces between the second test metal block and the second metal splint;
Wherein, described emission type piezoelectric ceramic piece number is even number, and described emission type piezoelectric ceramic piece polarised direction is thickness direction, and adj acent piezoelectric potsherd polarised direction is contrary; The length direction of described transmitting transducer is vertical with the length direction of described drill collar;
Described receiving type piezoelectric ceramic piece number is even number, and described receiving type piezoelectric ceramic piece polarised direction is thickness direction, and adj acent piezoelectric potsherd polarised direction is contrary; The length direction of described receiving transducer is vertical with the length direction of described drill collar.
Second aspect, the utility model provides a kind of transmitting transducer, comprises the first radiation metal block of being arranged on two ends and the first test metal block, the first metal splint in centre, lays respectively at the first radiation metal block, multiple emission type piezoelectric ceramic pieces between the first test metal block and the first metal splint; Wherein, described emission type piezoelectric ceramic piece number is even number, and described emission type piezoelectric ceramic piece polarised direction is thickness direction, and adj acent piezoelectric potsherd polarised direction is contrary; The length direction of described transmitting transducer is vertical with the length direction of described drill collar.
The third aspect, the utility model provides a kind of receiving transducer, comprises the second radiation metal block of being arranged on two ends and the second test metal block, the second metal splint in centre, lays respectively at the second radiation metal block, multiple receiving type piezoelectric ceramic pieces between the second test metal block and the second metal splint; Wherein, described receiving type piezoelectric ceramic piece number is even number, and described receiving type piezoelectric ceramic piece polarised direction is thickness direction, and adj acent piezoelectric potsherd polarised direction is contrary; The length direction of described receiving transducer is vertical with the length direction of described drill collar.
The acoustic logging-while-drillidevice device that the utility model embodiment provides, utilize the Acoustic multipole sources mode of operation that monopole, dipole and quadrapole form, directly can measure the parameters such as stratum compressional wave, shear wave, the Stoneley wave velocity of sound and decay, both can mutually with reference to checking, also can process separately, substantially increase confidence level and the range of application of device.Utilize compressional wave, shear wave velocity can calculate modulus of elasticity, the poisson's ratio on stratum, predict geopressure, utilize compressional wave, shear wave velocity ratio can also judge gas-bearing formation information.
Accompanying drawing explanation
The acoustic logging-while-drillidevice device schematic diagram that Fig. 1 provides for the utility model embodiment one;
Fig. 2 is the acoustic wave propagation path schematic diagram in the utility model embodiment one;
The transmitting transducer structural representation that Fig. 3 a provides for the utility model embodiment one;
The transmitting transducer scheme of installation that Fig. 3 b provides for the utility model embodiment one;
The transmitting transducer scheme of installation that Fig. 3 c provides for the utility model embodiment one;
The receiving transducer structural representation that Fig. 4 a provides for the utility model embodiment one;
The receiving transducer scheme of installation that Fig. 4 b provides for the utility model embodiment one;
The receiving transducer scheme of installation that Fig. 4 c provides for the utility model embodiment one.
Detailed description of the invention
Below by drawings and Examples, the technical solution of the utility model is described in further detail.For making the object of the utility model embodiment, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
The acoustic logging-while-drillidevice device schematic diagram that Fig. 1 provides for the utility model embodiment one.As shown in Figure 1, acoustic logging-while-drillidevice device comprises: drill collar 1, transmitting transducer 2, receiving transducer 3, acoustic isolater 4, drill collar 1 top is provided with joint 5, drill collar 1 bottom is provided with joint 6, transmitting transducer 2 and receiving transducer 3 are embedded in the outer wall cutting of drill collar 1 respectively, acoustic isolater 4 is between transmitting transducer 2 and receiving transducer 3, whole acoustic logging-while-drillidevice device is arranged in well 7, is full of fluid 8 in well 7, is stratum 9 outside well.
Transmitting transducer 2 produces sound wave, propagation path as shown in Figure 2, sound wave is propagated in near-borehole formation by mud, the speed propagated and amplitude are subject to the rock property impact on stratum, after the propagation of certain distance, received by receiving transducer 3 again, sound velocity of wave propagation can be set up thus, relation between amplitude fading and formation rock physical property, thus the velocity of longitudinal wave of rock can be obtained, shear wave velocity, Stoneley wave speed, and then the degree of porosity parameter on stratum can be obtained, and can ground stress analysis be carried out, the mechanics parameter such as young's modulus of elasticity and poisson's ratio of rock can also be obtained in conjunction with rock density parameter.
In one embodiment, acoustic isolater 4 is arranged on the middle and lower part of whole drill collar 1, whole drill collar 1 is structure as a whole, acoustic isolater 4 is its important component parts, usually be arranged between transmitting transducer 2 and receiving transducer 3, its major function weakens and postpone sound wave directly to propagate into receiving transducer array 3 from transmitting transducer 2 by drill collar 1, for ensureing the safe construction of drill collar 1 in drilling process, acoustic isolater 4 also must possess certain intensity, under the effect of the strong power such as axial, radial and circumferential, large distortion can not occur, fractures and twist off.Acoustic isolater 4 is provided with leads sound track 10, and the width of leading sound track 10 is 5mm-50mm, and the degree of depth is 1mm-30mm, to increase acoustic wave propagation path the reaching object weakening direct wave.
The transmitting transducer structural representation that Fig. 3 a provides for the utility model embodiment one.As shown in Figure 3 a; transmitting transducer 2 comprises: the first radiation metal block 11, first test metal block 12, first metal splint 13, emission type piezoelectric ceramic piece 14, Copper Foil 15, Copper Foil 16 form cylinder; transmitting transducer 2 outer layer covers glass fiber and epoxy resin or silicon rubber topping, outermost layer is metal coating shell.Wherein, assemble with drift bolt and adhesive and cohere between metal derby and piezoelectric ceramics, piezoelectric ceramics and form.The length of transmitting transducer 2 is vertical with the length direction of drill collar 1.
In one embodiment, transmitting transducer 2 forms for emission type piezoelectric ceramic piece 14, first radiation metal block 11, first metal splint 13 and the first test metal block 12 cohere, emission type piezoelectric ceramic piece 14 is high temperature resistant emission type piezoelectric ceramic piece, diameter is 10mm-60mm, thickness is 1mm-50mm, its quantity is 2-40 (even number) sheet, and polarised direction is thickness direction, and when cohering, adjacent piezoelectric ceramic piece polarised direction is contrary.First radiation metal block 11 diameter is 10mm-60mm, and thickness is 3mm-50mm.First test metal block 12 diameter is 10mm-60mm, and thickness is 3mm-50mm, and tip diameter can be greater than emission type piezoelectric ceramic piece 14.The diameter of Copper Foil 15 and Copper Foil 16 is 10mm-80mm, and thickness is 0.1mm-5mm, and its quantity is 4-42 (even number) sheet, and high-temperature electric conduction glue spreads upon Copper Foil 15 and Copper Foil 16 Bidirectional surface.Copper Foil 15 is connected with holding wire positive pole, and Copper Foil 16 is connected with holding wire negative pole.
The transmitting transducer scheme of installation that Fig. 3 b and 3c provides for the utility model embodiment one.Transmitting transducer 2 can be many groups, often organizes 4 and is mutually vertically positioned on same plane, often organizes transmitting transducer and distributes successively along drill collar axial direction.
In one embodiment, transmitting transducer 2 is one group 4, and 4 transmitting transducers are vertically placed mutually, and in the same plane, and transmitting transducer horizontal centre distance is 30mm-90mm.
In one embodiment, transmitting transducer 2 adopts the monopole mode of operation of isotropic excitation, and transmitting transducer 2 produces sound wave, and receiving transducer 3 receives sound wave.
In one embodiment, transmitting transducer 2 adopts the cross-dipole mode of operation of reverse energization, and transmitting transducer 2 produces sound wave, and receiving transducer 3 receives sound wave.
In one embodiment, transmitting transducer 2 adopts the orthogonal quadrapole mode of operation of reverse energization between two, and transmitting transducer 2 produces sound wave, and receiving transducer 3 receives sound wave.
In one embodiment, transmitting transducer 2 periphery is provided with sound transmitting window, because the silicone oil in its acoustic impedance and drill collar and the mud acoustic impedance outside drill collar match, is thus conducive to reducing the decay of sound wave in emission process.
The receiving transducer structural representation that Fig. 4 a provides for the utility model embodiment one.As shown in fig. 4 a; receiving transducer 3 comprises: the second radiation metal block 17, second test metal block 18, second metal splint 19, receiving type piezoelectric ceramic piece 20, Copper Foil 21, Copper Foil 22 form cylinder; receiving transducer 3 outer layer covers glass fiber and epoxy resin or silicon rubber topping, outermost layer is metal coating shell.Wherein, assemble with drift bolt and adhesive and cohere between metal derby and piezoelectric ceramics, piezoelectric ceramics and form.The length of receiving transducer 3 is vertical with the length direction of drill collar 1.
In one embodiment, receiving transducer 3 forms for receiving type piezoelectric ceramic piece 20, second radiation metal block 17, second metal splint 19 and the second test metal block 18 cohere, receiving type piezoelectric ceramic piece 20 is high temperature resistant receiving type piezoelectric ceramic piece, diameter is 10mm-60mm, thickness is 1mm-50mm, its quantity is 2-40 (even number) sheet, and polarised direction is thickness direction, and when cohering, adjacent piezoelectric ceramic piece polarised direction is contrary.Second radiation metal block 17 diameter is 10mm-60mm, and thickness is 3mm-50mm.Second test metal block 18 diameter is 10mm-60mm, and thickness is 3mm-50mm, and tip diameter can be greater than receiving type piezoelectric ceramic piece 20.The diameter of Copper Foil 21 and Copper Foil 22 is 10mm-80mm, and thickness is 0.1mm-5mm, and its quantity is 4-42 (even number) sheet, and high-temperature electric conduction glue spreads upon Copper Foil 21 and Copper Foil 22 Bidirectional surface.Copper Foil 21 is connected with holding wire positive pole, and Copper Foil 22 is connected with holding wire negative pole.
The receiving transducer scheme of installation that Fig. 4 b and 4c provides for the utility model embodiment one.Receiving transducer 2 can be many groups, often organizes 4 and is mutually vertically positioned on same plane, often organizes receiving transducer and distributes successively along drill collar axial direction.
In one embodiment, receiving transducer 3 is 4 groups 16, and 4 receiving transducers are vertically placed mutually, and in the same plane, and receiving transducer horizontal centre distance is 30mm-90mm, and receiving transducer vertical centre distance is 30mm-100mm.Utilizing array received, is that be conducive to the locus determining to measure stratum, array element quantity is more, and directive property is stronger because it has its axial plane vertical receive the narrow characteristic of directive property.
In one embodiment, receiving transducer 3 top flare, expands receiving angle, can receive more information of acoustic wave.Receiving transducer 3 periphery is provided with sound transmitting window, because the silicone oil in its acoustic impedance and drill collar and the mud acoustic impedance outside drill collar match, is thus conducive to echo in the earth formation unattenuated or to be lessly received damply.
Due to the structure of the utility model embodiment device, transmitting transducer 2 and receiving transducer array 3 are combined, use the mode of operation transmitting sound wave that three kinds different, and the signal of three kinds of receiving transducer array received is that the difference of these Received signal strength treated judges oiliness and the reserves thereof of reservoir by the reflection of different geologic structure, the multiple different physical process such as refraction and absorption.Particularly, add dipole and quadrapole mode of operation, effectively can measure the shear wave information of soft formation, thus the anisotropy etc. on stratum can be analyzed.
Due to structure of the present utility model, four transmitting transducers are fitted together, there are three kinds of working group's syntypes and launch different sound wave, that is: the monopole pattern of four transmitting transducer isotropic excitation, the pattern of the cross-dipole of four transmitting transducer reverse energizations, the orthogonal quadrapole pattern of four transmitting transducers reverse energization between two, the signal of each receiving transducer array received is the reflection by Different Strata, the multiple different processes such as refraction and propagation absorption, difference through processing these signals can judge the velocity of longitudinal wave on stratum, shear wave velocity, the information such as degree of porosity and pore pressure, especially at soft formation (shear wave velocity on stratum is less than the velocity of sound of borehole fluid), utilize the cross-dipole in the utility model can measure the shear wave velocity on stratum with the mode of orthogonal quadrapole, carry out ground stress analysis, the allomeric function of transducer is expanded.
Above-described detailed description of the invention; the purpose of this utility model, technical scheme and beneficial effect are further described; be understood that; the foregoing is only detailed description of the invention of the present utility model; and be not used in restriction protection domain of the present utility model; all within spirit of the present utility model and principle, any amendment made, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (15)
1. an acoustic logging-while-drillidevice device, is characterized in that, described device comprises: drill collar, be arranged on transmitting transducer on drill collar and receiving transducer;
Described transmitting transducer, comprises the first radiation metal block of being arranged on two ends and the first test metal block, the first metal splint in centre, lays respectively at the first radiation metal block, multiple emission type piezoelectric ceramic pieces between the first test metal block and the first metal splint;
Described receiving transducer, comprises the second radiation metal block of being arranged on two ends and the second test metal block, the second metal splint in centre, lays respectively at the second radiation metal block, multiple receiving type piezoelectric ceramic pieces between the second test metal block and the second metal splint;
Wherein, described emission type piezoelectric ceramic piece number is even number, and described emission type piezoelectric ceramic piece polarised direction is thickness direction, and adj acent piezoelectric potsherd polarised direction is contrary; The length direction of described transmitting transducer is vertical with the length direction of described drill collar;
Described receiving type piezoelectric ceramic piece number is even number, and described receiving type piezoelectric ceramic piece polarised direction is thickness direction, and adj acent piezoelectric potsherd polarised direction is contrary; The length direction of described receiving transducer is vertical with the length direction of described drill collar.
2. device according to claim 1, it is characterized in that, described device also comprises: acoustic isolater, and described acoustic isolater is the drill collar being carved with sound track, between described transmitting transducer and described receiving transducer, propagate into receiving transducer for weakening and postponing sound wave from transmitting transducer.
3. device according to claim 1, is characterized in that, described transmitting transducer is many groups, often organizes 4 and is mutually vertically positioned on same plane, often organizes transmitting transducer and distributes successively along drill collar axial direction.
4. device according to claim 1, is characterized in that, described transmitting transducer adopts the monopole mode of operation of isotropic excitation.
5. device according to claim 1, is characterized in that, described transmitting transducer adopts the cross-dipole mode of operation of reverse energization.
6. device according to claim 1, is characterized in that, described transmitting transducer adopts the orthogonal quadrapole mode of operation of reverse energization between two.
7. device according to claim 1, is characterized in that, described receiving transducer is many groups, often organizes 4 and is mutually vertically positioned on same plane, often organizes receiving transducer and distributes successively along drill collar axial direction.
8. device according to claim 1, is characterized in that, described transmitting transducer outer layer covers glass fiber and epoxy glue or silicone rubber insulation layer, outermost layer is metal coating shell.
9. device according to claim 1, is characterized in that, described transmitting transducer radiating surface periphery is provided with sound window.
10. device according to claim 1, is characterized in that, described receiving transducer top flare, periphery is provided with sound transmitting window.
11. devices according to claim 1, is characterized in that, described receiving transducer outer layer covers glass fiber and epoxy glue or silicone rubber insulation layer, outermost layer is metal coating shell.
12. devices according to claim 1, is characterized in that, adopt drift bolt and/or adhesive assembling and cohere to form between the metal derby of described transmitting transducer and piezoelectric ceramic piece, piezoelectric ceramic piece.
13. devices according to claim 1, is characterized in that, adopt drift bolt and/or adhesive assembling and cohere to form between the metal derby of described receiving transducer and piezoelectric ceramic piece, piezoelectric ceramic piece.
14. 1 kinds of transmitting transducers, it is characterized in that, comprise the first radiation metal block of being arranged on two ends and the first test metal block, the first metal splint in centre, lay respectively at the first radiation metal block, multiple emission type piezoelectric ceramic pieces between the first test metal block and the first metal splint; Wherein, described emission type piezoelectric ceramic piece number is even number, and described emission type piezoelectric ceramic piece polarised direction is thickness direction, and adj acent piezoelectric potsherd polarised direction is contrary; The length direction of described transmitting transducer is vertical with the length direction of drill collar.
15. 1 kinds of receiving transducers, it is characterized in that, comprise the second radiation metal block of being arranged on two ends and the second test metal block, the second metal splint in centre, lay respectively at the second radiation metal block, multiple receiving type piezoelectric ceramic pieces between the second test metal block and the second metal splint; Wherein, described receiving type piezoelectric ceramic piece number is even number, and described receiving type piezoelectric ceramic piece polarised direction is thickness direction, and adj acent piezoelectric potsherd polarised direction is contrary; The length direction of described receiving transducer is vertical with the length direction of drill collar.
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| CN201520212566.0U CN204691763U (en) | 2015-04-09 | 2015-04-09 | Acoustic logging-while-drillidevice device |
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| CN201520212566.0U CN204691763U (en) | 2015-04-09 | 2015-04-09 | Acoustic logging-while-drillidevice device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806234A (en) * | 2015-04-09 | 2015-07-29 | 中国科学院声学研究所 | Drilling following type acoustic logging device |
| CN107762491A (en) * | 2016-08-17 | 2018-03-06 | 中国石油化工股份有限公司 | A kind of acoustic logging while drilling radiation appliance |
| CN108643893A (en) * | 2018-05-09 | 2018-10-12 | 中国科学院地质与地球物理研究所 | One kind is with brill orientation acoustic imaging well logging apparatus |
| CN109790748A (en) * | 2016-08-30 | 2019-05-21 | 埃克森美孚上游研究公司 | Dual transducers communication node for underground acoustics wireless network and the method using the communication node |
-
2015
- 2015-04-09 CN CN201520212566.0U patent/CN204691763U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806234A (en) * | 2015-04-09 | 2015-07-29 | 中国科学院声学研究所 | Drilling following type acoustic logging device |
| CN107762491A (en) * | 2016-08-17 | 2018-03-06 | 中国石油化工股份有限公司 | A kind of acoustic logging while drilling radiation appliance |
| CN107762491B (en) * | 2016-08-17 | 2020-09-25 | 中国石油化工股份有限公司 | While-drilling acoustic logging radiation device |
| CN109790748A (en) * | 2016-08-30 | 2019-05-21 | 埃克森美孚上游研究公司 | Dual transducers communication node for underground acoustics wireless network and the method using the communication node |
| CN108643893A (en) * | 2018-05-09 | 2018-10-12 | 中国科学院地质与地球物理研究所 | One kind is with brill orientation acoustic imaging well logging apparatus |
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