CN2572419Y - Reflection wave imaging well survey instrument - Google Patents
Reflection wave imaging well survey instrument Download PDFInfo
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- CN2572419Y CN2572419Y CN 02257275 CN02257275U CN2572419Y CN 2572419 Y CN2572419 Y CN 2572419Y CN 02257275 CN02257275 CN 02257275 CN 02257275 U CN02257275 U CN 02257275U CN 2572419 Y CN2572419 Y CN 2572419Y
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- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The utility model relates to a reflection wave imaging logging instrument. The utility model particularly relates to a logging instrument for the measurement of the physical properties of strata in the process of petroleum drilling. The utility model provides the reflection wave imaging logging instrument in order to overcome the shortage of the unsatisfied requirement of distant detection logging existing in the present logging technology. A transmission array (2) of the utility model is provided with a high-frequency transmission transducer (21) and a low-frequency transmission transducer (22), wherein, the operating frequency of the high-frequency transmission transducer ranges from 10 to 15 kHz, and the operating frequency of the low-frequency transmission transducer ranges from 5 to 9 kHz. A receiving array (4) is provided with a receiving transducer (41) of which the response frequency ranges from 2 to 20 kHz. Sound insulating bodies (3) are respectively a sound insulating body (31) with a fixed length and a sound insulating body (32) with a variable length. When the utility model is used, radial detection distance near a well wall can be raised from 1 m to 10 m while the well wall is not damaged, and reflection wave signals can be controlled and repeated.
Description
Technical field
The utility model relates to a kind of logging instrumentation of measuring stratum physical property, particularly relates to a kind of echo imaging logging device.
Background technology
In order to explore underground petroleum and natural gas source layer, after drilling well, carry out geophysical well logging usually, with the lithology of understanding the well profile overlying strata, the degree of depth and factor of porosity, permeability and the hydrocarbon saturation of the interphase on stratum, especially reservoir of oil and gas.Geophysical well logging, be that a measurement mechanism that is called as subsurface tool or detection instrument is set in well, this device can move up and down in well, with the treating apparatus that logging cable connects subsurface tool that passes through that is positioned at ground, handles the signal that is measured by subsurface tool.With sonic generator and a receiver being provided with on subsurface tool, the logging method of determining sound wave velocity of propagation in the stratum also is well-known.
At present, various geophysical well logging methods (as micro-electric scanning well logging, inductolog, the well logging of nuclear method etc.) restriction of added physical field intensity finite sum method itself in the down-hole, the radial distance of surveying is limited, generally about 1 meter, and oil and gas exploitation often needs to understand apart from borehole wall situation at a distance, for example whether have in reservoir or the adjacent formations crack, apart from the borehole wall at a distance in the reservoir because the position of the oil-water interface that water filling or gas injection produce etc.And existing acoustic logging method, because survey record is the slide wave of propagating along the borehole wall (inhomogeneous wave), its radial depth of investigetion is relevant with the frequency of acoustic signals, only is that centimetre-sized is to tens of centimetre-sized; Though the method for seismic prospecting investigation depth reaches hundreds of rice, even can reach several kms, because the resolution of method of seismic prospecting is low, and carries out the seismic prospecting meeting in the down-hole and destroy the borehole wall, the survey record signal is uncontrollable, and measurement result can not repeat.Therefore, existing logging instrumentation all can not satisfy carrying out meticulous detection more at a distance.
The utility model content
The purpose of this utility model is in order to overcome the deficiency that existing logging instrumentation can not satisfy detection well logging needs far away, a kind of echo imaging logging device to be provided, with satisfy the borehole wall radially detection range be that 10m is with interior logging requirements.
In order to achieve the above object, the utility model echo imaging logging device, comprise emitting electrons storehouse, emission array, sound insulator, receiving array, reception electronics storehouse, and connect successively from top to bottom, high-frequency emission transducer and low frequencies transducer are installed in the emission array; Receiving array is equipped with receiving transducer; The frequency of operation of high-frequency emission transducer is 10～15kHz, and the frequency of operation of low frequencies transducer is 5～9kHz; The response frequency of receiving transducer is 2～20kHz; Sound insulator is regular length sound insulator and variable-length sound insulator.
The beneficial effect of the utility model echo imaging logging device and logging method is, near the radially detection range the borehole wall is brought up to about 10m from 1m, do not destroy the borehole wall, and reflection wave signal is controlled and can repeat.
Description of drawings
Fig. 1 is the utility model echo imaging logging device synoptic diagram.
Fig. 2 is the utility model echo imaging logging device emission array structural representation.
Fig. 3 is the utility model echo imaging logging device regular length sound insulator structural representation.
Fig. 4 is the utility model echo imaging logging device variable-length sound insulator structural representation.
Fig. 5 is the utility model echo imaging logging device receiving array structural representation.
Fig. 6 is that the utility model echo imaging logging device damping material is the sound insulator that rubber adds sound absorption ceramic.
Among the figure: 1. emitting electrons storehouse, 2. emission array, 3. sound insulator, 4. receiving array, 5. receive the electronics storehouse, 21. high-frequency emission transducers, 22. low frequencies transducers, 23. short insulation spacers, 24. long insulation spacer, 25. short insulation spacers, 31. regular length sound insulators, 32. variable-length sound insulators, 33. cutting, 34. damping materials, 35. shells, 36. shell, 37. screws, 38. sound insulator tops, 39. the sound insulator bottom, 41. receiving transducers, 42. insulation spacers.
Embodiment
With reference to accompanying drawing, echo imaging logging device mainly comprises emitting electrons storehouse 1, emission array 2, sound insulator 3, receiving array 4, receives electronics storehouse 5, and connects (Fig. 1) successively from top to bottom.Emission array 2 is equipped with high-frequency emission transducer 21 and low frequencies transducer 22; Receiving array 4 is equipped with receiving transducer 41.The frequency of operation of high-frequency emission transducer 21 is 10～15kHz, is preferably 11～12kHz; The frequency of operation of low frequencies transducer 22 is 5～9kHz, is preferably 6～7kHz; The response frequency of receiving transducer 41 is 2～20kHz.
With reference to Fig. 2, the piezoelectric ceramics of high-frequency emission transducer 21 in the emission array 2 and low frequencies transducer 22 employing thickness (tangentially) direction polarizations is rectangular to be spliced into pipe shape transmitting transducer or to adopt the ceramic pipe of 2 radial polarised to combine, use phased-array technique, control transponder pulse phase place, transmitted wave is superposeed with identical phase place at certain point in space, thereby obtain focusing effect.The quantity of high-frequency emission transducer 21 is 4, along the top that axially is distributed on emission array 2 of emission array 2, separates with short insulation spacer 23 each other; The length of short insulation spacer 23 is 3～5mm, is preferably 4mm.The quantity of low frequencies transducer 22 is 2, along the bottom that axially is distributed on emission array 2 of emission array 2, separates with short insulation spacer 25 each other; The length of short insulation spacer 25 is 3～5mm, is preferably 4mm; Separate with long insulation spacer 24 between high-frequency emission transducer 21 and the low frequencies transducer 22, the length of long insulation spacer 24 is 400～500mm, is 440～480mm preferably, and that best is 460～470mm.When emission, 4 high-frequency emission transducers 21 can adopt 1 emission, 2 emissions, 3 emissions or 4 emissions respectively, and the time delay of emission is adjustable.
With reference to Fig. 5, the receiving transducer 41 in the receiving array 4 adopts the annulus of 4 radial polarised to be in series, or adopts the ceramic pipe of 2 radial polarised to combine; The quantity of receiving transducer 41 is 4～8, and axially uniform along receiving array 4 separates with short insulation spacer 42 each other; The length of short insulation spacer 42 is 200～250mm, and that best is 220～230mm.
High-frequency emission transducer 21, low frequencies transducer 22 and receiving transducer 41 must be installed in the rubber balance oil sac and be sealed just and can use, and oil sac thickness is 2～3mm.Insulation spacer 23, insulation spacer 24, insulation spacer 25 and insulation spacer 42 can select for use the material of good insulation preformance to make, as teflon.
Referring to Fig. 3, Fig. 4, because the difference of required detection radial distance, require the spacing (distance between emission array 2 and the receiving array 4) of echo imaging logging device also different, so sound insulator 3 of the present utility model have regular length sound insulator 31 and 32 two kinds of forms of variable-length sound insulator.Variable-length sound insulator 32 is combined by sound insulator top 38 and sound insulator bottom 39, can stretch between sound insulator top 38 and the sound insulator bottom 39, regulate the length of variable-length sound insulator 32, to satisfy the needs of different spacings, the adjusting length of variable-length sound insulator 32 is 0～9m; Sound insulator top 38 adopts screw 37 to be connected with sound insulator bottom 39, also can adopt other connecting mode.
Use echo imaging logging device of the present utility model, high-frequency emission transducer 21 in the excitation-emission array 2 and low frequencies transducer 22, the emission sound pulse, and incide the borehole wall with 2/3 times first critical angle, enter the stratum, if the near-borehole formation structure changes, be encapsulated in the wideband high-sensitivity receiving transducer 41 in the receiving array 4, just can receive the acoustic signals of reflection Different Strata structure, compressional wave (p ripple) as the stratum, shear wave (S ripple), Stoneley wave (ST ripple) and longitudinal wave reflection ripple (PP ripple), transverse wave reflection ripple (SS ripple) is transformed wave (PS ripple) and horizontal vertical transformed wave (SP ripple) etc. in length and breadth, can adopt the echo imaging logging method ripple signal that obtains is handled and to be explained then.
Claims (7)
1. echo imaging logging device, comprise emitting electrons storehouse, emission array, sound insulator, receiving array, reception electronics storehouse, and connect successively from top to bottom, it is characterized in that: described emission array (2) is equipped with high-frequency emission transducer (21) and low frequencies transducer (22); Receiving array (4) is equipped with receiving transducer (41); The frequency of operation of described high-frequency emission transducer (21) is 10～15kHz, and the frequency of operation of low frequencies transducer (22) is 5～9kHz; The response frequency of receiving transducer (41) is 2～20kHz; Described sound insulator (3) is regular length sound insulator (31) and variable-length sound insulator (32).
2. echo imaging logging device according to claim 1 is characterized in that: the frequency of operation of described high-frequency emission transducer (21) is 11～12kHz, and the frequency of operation of low frequencies transducer (22) is 6～7kHz.
3. echo imaging logging device according to claim 2, it is characterized in that: the quantity of described high-frequency emission transducer (21) is 4, along the top that axially is distributed on emission array (2) of emission array (2), short insulation spacer (23) is installed between the high-frequency emission transducer (21); The quantity of low frequencies transducer (22) is 2, along the bottom that axially is distributed on emission array (2) of emission array (2), short insulation spacer (25) is installed between the low frequencies transducer (22); Long insulation spacer (24) is installed between high-frequency emission transducer (21) and the low frequencies transducer (22).
4. echo imaging logging device according to claim 1 is characterized in that: the quantity of described receiving transducer (41) is 4～8, and is axially uniform along receiving array (4), and insulation spacer (42) is installed each other.
5. echo imaging logging device according to claim 1 is characterized in that: the length adjustment scope of described variable-length sound insulator (32) is 0～9m.
6. echo imaging logging device according to claim 5 is characterized in that: shell (35,36) the upper edge circumference of described regular length sound insulator (31), variable-length sound insulator (32) has the staggered cutting (33) of vertical and horizontal.
7. echo imaging logging device according to claim 5 is characterized in that: the damping material (34) that described regular length sound insulator (31), variable-length sound insulator (32) adopt adds the sound absorption ceramic combination for rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02257275 CN2572419Y (en) | 2002-10-10 | 2002-10-10 | Reflection wave imaging well survey instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02257275 CN2572419Y (en) | 2002-10-10 | 2002-10-10 | Reflection wave imaging well survey instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2572419Y true CN2572419Y (en) | 2003-09-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02257275 Expired - Fee Related CN2572419Y (en) | 2002-10-10 | 2002-10-10 | Reflection wave imaging well survey instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2572419Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101349758B (en) * | 2007-07-18 | 2011-08-03 | 中国石油天然气集团公司 | Control method of biphase control acoustic emission apparatus |
| CN103558637A (en) * | 2013-11-04 | 2014-02-05 | 中国科学院声学研究所 | Far detection method based on three-component sensor |
| CN105275451A (en) * | 2015-09-25 | 2016-01-27 | 武汉力博物探有限公司 | Drill hole radial three-dimensional imaging system |
-
2002
- 2002-10-10 CN CN 02257275 patent/CN2572419Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101349758B (en) * | 2007-07-18 | 2011-08-03 | 中国石油天然气集团公司 | Control method of biphase control acoustic emission apparatus |
| CN103558637A (en) * | 2013-11-04 | 2014-02-05 | 中国科学院声学研究所 | Far detection method based on three-component sensor |
| CN103558637B (en) * | 2013-11-04 | 2016-01-13 | 中国科学院声学研究所 | Based on the detection method far away of three component sensor |
| CN105275451A (en) * | 2015-09-25 | 2016-01-27 | 武汉力博物探有限公司 | Drill hole radial three-dimensional imaging system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |