CN102383786A - Sector cement bonding and sound wave time difference logging instrument - Google Patents
Sector cement bonding and sound wave time difference logging instrument Download PDFInfo
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- CN102383786A CN102383786A CN2011100562490A CN201110056249A CN102383786A CN 102383786 A CN102383786 A CN 102383786A CN 2011100562490 A CN2011100562490 A CN 2011100562490A CN 201110056249 A CN201110056249 A CN 201110056249A CN 102383786 A CN102383786 A CN 102383786A
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- 239000004568 cement Substances 0.000 title abstract description 8
- 239000000523 sample Substances 0.000 claims abstract description 35
- 239000000919 ceramic Substances 0.000 claims description 11
- 210000004907 gland Anatomy 0.000 claims description 3
- 230000008878 coupling Effects 0.000 abstract description 5
- 238000010168 coupling process Methods 0.000 abstract description 5
- 238000005859 coupling reaction Methods 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 2
- 239000003208 petroleum Substances 0.000 abstract description 2
- 230000000295 complement effect Effects 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 210000002445 nipple Anatomy 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000000644 propagated effect Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 235000020681 well water Nutrition 0.000 description 1
- 239000002349 well water Substances 0.000 description 1
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Abstract
The invention relates to a sector cement bonding and sound wave time difference logging instrument belonging to the technical field of special instruments for detecting cased well cement bonding quality in petroleum engineering logging construction. The sector cement bonding and sound wave time difference logging instrument comprises a ground receiving and processing device, a cable and an underground instrument, wherein a sound system in the underground instrument comprises an array type receiving probe, a sector receiving probe, a transmitting probe and a connecting rod; the array type receiving probe is connected in series with the sector receiving probe and the transmitting probe through the connecting rod; during logging, all the probes are arranged in the middle of a well, the sound coupling conditions of the probes are same, and the measured waveform amplitude is not influenced by sound coupling, thus the connected transmitting probe has a wider frequency band, vibration with shorter complementary vibration can be effectively excited, casing waves and stratum waves can be favorably distinguished, and the amplitude of the stratum waves is larger; the probes are larger in diameter and nearer to the wall of the well, and the difference of cement bonding qualities in different sectors is displayed more remarkably in waveforms received by eight different sectors when the excited casing waves spread in different sectors, thus the contrast of pictures is increased.
Description
Technical field
The present invention relates to a kind of sector cementing and interval transit time logging instrument; Belonging to the instrumentation technical field of petroleum works well logging construction middle sleeve well water earth rubber knot quality examination, effectively detects, forms images and can be to crossing the special-purpose logging instrument that sleeve pipe stratum interval transit time is effectively measured in particularly a kind of 360 ° of sectors to cementing.
Background technology
In the spatial relation of actual well, sleeve pipe and the borehole wall and corresponding cement sheath; Because it is eccentric that sleeve pipe occurs at diverse location; Correspondingly cement sheath distribution in 360 ° around well is uneven, surveys different sectors cementing situation objective evaluation target zone, design oil reservoir development scheme etc. is all had important practical significance.The cementing of the outer different sectors of cased well measured has two types instrument at present.The patent No. is 200820029954.5 to disclose a kind of sector cement bond logging unit; It is that amplitude with casing wave is a measuring object; With mechanical device probe is pushed against the borehole wall; Because probe is different with borehole wall exposure level, has the different problem of acoustical coupling, thereby influences the precision of casing wave amplitude measurement; The patent No. is the sound system that 200820027837.X discloses eight sector cementing imaging logging instruments of another kind of structure; The probe of instrument occupies in the well; Promptly probe is positioned at instrument internal, and instrument is measured in the centre of well, and the probe distance borehole wall is distant; The amplitude difference of the casing wave that different sectors cementing is caused is smaller, and the visual contrast effect of measurement is poor.
Summary of the invention
The purpose of the present invention's technology is the poor defective of visual contrast effect low to the casing wave amplitude that exists in the above-mentioned prior art and that measure; Provide a kind of and can effectively excite different sectors cementing information, guarantee the sector cementing and the interval transit time logging instrument of sector cementing image quality.
The object of the invention is realized through following measure:
A kind of sector cementing and interval transit time logging instrument; Form by ground reception and treating apparatus, cable and downhole instrument; Sonic system in the downhole instrument is made up of array receiving transducer and sector receiving transducer and transmitting probe and connecting rod, and array receiving transducer and sector receiving transducer and transmitting probe are one through the connecting rod polyphone.
Transmitting probe in the described sonic system, array receiving transducer and sector receiving transducer are formed by piezoelectric ceramic circular tube, connecting rod and gland; Be with internal lining pipe in the piezoelectric ceramic circular tube; The internal diameter of internal lining pipe is identical with the external diameter of connecting rod; Upper press cover and lower cover are the disk that has hollow hole, are provided with the internal thread that is connected with connecting rod in its hollow hole.
Sector receiving transducer in the described sonic system is a piezoelectric ceramic circular tube, and its circumference evenly is divided into 8 equal portions.
Transmitting probe of the present invention and receiving transducer are to be array by connecting rod serial connection, and when well logging, all probe is positioned at the centre of well; Its acoustical coupling condition is identical; The wave-shape amplitude of measuring does not receive the influence of acoustical coupling, and the frequency band of the transmitting probe that connects like this can excite the relatively shorter vibration of remained shock effectively than broad; Help distinguishing casing wave and formation wave, and the amplitude of formation wave is bigger; Probe diameter is bigger, closer apart from the borehole wall, and when the casing wave that excites was propagated in different sectors, the difference of different sectors Cementation Quality showed apparent in view in the reception waveform of 8 different sectors, and the contrast of image improves.
Description of drawings
Accompanying drawing 1 is a structured flowchart of the present invention;
Accompanying drawing 2 is downhole electronics of the present invention systems;
Accompanying drawing 3 is sonic system structural representations of the present invention;
Accompanying drawing 4 is the used piezoelectric ceramic tube polarization of sector receiving transducer in the sonic system of the present invention sketch map;
Accompanying drawing 5 is transmitting probe and receiving transducer structural representation in the sonic system of the present invention;
Accompanying drawing 6 is patent No. 200820027837.X test result figure;
Accompanying drawing 7 is test result figure of the present invention.
The specific embodiment:
Can know by Fig. 1; The present invention is made up of ground reception and treating apparatus, cable 3 and downhole instrument 9; Ground receive with treating apparatus in computer 1 be connected with the spread of the rumours decoding deck 2 through data wire; The spread of the rumours decoding deck 2 is connected with the spread of the rumours pipe nipple 4 in the downhole instrument 9 through cable 3, and the spread of the rumours pipe nipple 4 passes through data wire and is connected with magnetic orientation 5, natural gamma 6, sound wave electronic circuit 7 and sonic system 8 successively.
Can know by Fig. 2; Sound wave electronic circuit 7 of the present invention is made up of logic card 10, A/D plate 11, expelling plate 14, sector dash receiver 12 and array received plate 13; Logic card 10 and A/D plate 11 and expelling plate 14 are connected through data wire, and sector dash receiver 12 is connected with A/D plate 11 through data wire with array received plate 13.
Can know by Fig. 3; Sonic system 8 of the present invention is made up of array receiving transducer 15,16,17 and sector receiving transducer 19 and transmitting probe 20 and connecting rod 18, and array receiving transducer 15,16,17 and sector receiving transducer 19 and transmitting probe 20 are one through connecting rod 18 polyphones; Sector dash receiver 12 and sector receiving transducer 19 are connected through data wire; Array received plate 13 is connected with array receiving transducer 15,16,17 respectively through data wire; Transmitting probe 20 and expelling plate 14 are connected through data wire.
Can be known by Fig. 4: the sector receiving transducer 19 of sonic system 8 of the present invention is piezoelectric ceramic circular tube 21, and its circumference evenly is divided into 8 equal portions, is used to receive the signal of 8 sectors.
Can be known by Fig. 5: the transmitting probe 20 of sonic system 8 of the present invention is formed by piezoelectric ceramic circular tube 24, connecting rod 18 and gland with array receiving transducer 15,16,17 and sector receiving transducer 19; Be with internal lining pipe 23 in the piezoelectric ceramic circular tube 24; The internal diameter of internal lining pipe 23 is identical with the external diameter of connecting rod 18; Upper press cover 22 is the disk that has hollow hole 27,26 with lower cover 25, is provided with the internal thread that is connected with connecting rod 18 in its hollow hole 26,27.
Say the word for downhole probe 9 by ground-based computer 1 through the spread of the rumours decoding deck 2; These orders send to the spread of the rumours pipe nipple 4 of down-hole through cable 3; The spread of the rumours short circuit 4 is with the logic card of issuing downhole instrument shown in Figure 2 after the command decode 10; Logic card 10 control expelling plates 14 emission high-voltage pulses are given the transmitting probe 20 in the sonic system shown in Figure 3, and the vibration that transmitting probe 20 is launched is propagated in well, is received by sector receiving transducer 19 and array receiving transducer 15,16,17 respectively; Be transferred to A/D change-over panel 11 after by sector dash receiver in the downhole electronics shown in Figure 2 13 and array received plate 12 analog signal that receives being amplified; A/D change-over panel 11 is a data signal with these analog signal conversion; The spread of the rumours short circuit 4 through among Fig. 1 is encoded; Be transferred to the spread of the rumours decoding deck 2 by cable 3 again, at last by computer 1 deposit and demonstration.
Because transmitting probe 20 shown in Figure 3 and array receiving transducer 15,16, the position between 17 are different, in the received waveform of array receiving transducer 15,16,17, be different the time of advent of formation wave 35.Among the variable density figure shown in Figure 7; Vertical black and white band is a formation wave with the part 35 of change in depth; This ripple is received by 3 array receiving transducers 15,16,17, just can obtain the interval transit time on stratum with the phase information in the array waveform processing method extraction waveform.
Receiving transducer 19 shown in Figure 3 is 8 sector receiving transducers, and the circumference of the piezoelectric ceramic tube that it is used is as shown in Figure 4 to be divided into 8 parts, measures the casing wave amplitude of 8 sectors of circumference, is carried out to picture through interpolation, obtains the sector image in the accompanying drawing 7.
Accompanying drawing 6 is measurement results of prior art.In the poor degree of depth 28,29,31 positions of cementing, the glued difference of different sectors is not obvious, and black and white contrast is not strong; The vibration period of casing wave 32 is many, and the nemaline black and white band of near vertical is many among the figure, can't see basically with the formation wave 30 that the degree of depth changes.
Can know for test result figure of the present invention by accompanying drawing 7; The poor degree of depth 33,34,36 of cementing in the sector; Invention technology to the details indication of sector cementing clearer, black and white contrast is strong, the vibration period of casing wave 37 is fewer, obvious with the formation wave 35 of change in depth.
Claims (5)
1. sector cementing and interval transit time logging instrument; Form by ground reception and treating apparatus, cable (3) and downhole instrument (9); It is characterized in that: the sonic system (8) in the downhole instrument (9) is made up of array receiving transducer (15), (16), (17) and sector receiving transducer (19) and transmitting probe (20) and connecting rod (18), and it is one that array receiving transducer (15), (16), (17) and sector receiving transducer (19) and transmitting probe (20) pass through that connecting rod (18) contacts.
2. according to a kind of sector cementing according to claim 1 and 2 and interval transit time logging instrument; It is characterized in that: the transmitting probe (20) in the sonic system (8), array receiving transducer (15), (16), (17) and sector receiving transducer (19) are formed by piezoelectric ceramic circular tube (24), connecting rod (18) and gland; Be with internal lining pipe (23) in the piezoelectric ceramic circular tube (24); The internal diameter of internal lining pipe (23) is identical with the external diameter of connecting rod (18); Upper press cover (22) is the disk that has hollow hole (27), (26) with lower cover (25), is provided with the internal thread that is connected with connecting rod (18) in its hollow hole (27), (26).
3. a kind of sector cementing according to claim 1 and 2 and interval transit time logging instrument is characterized in that: the sector receiving transducer (19) in the sonic system (8) is a piezoelectric ceramic circular tube (21), and its circumference evenly is divided into 8 equal portions.
4. a kind of sector cementing according to claim 1 and 2 and interval transit time logging instrument; It is characterized in that: downhole electronics (7) is made up of logic card (10), A/D plate (11), expelling plate (14), sector dash receiver (12) and array received plate (13); Logic card (10) is connected through data wire with expelling plate (14) with A/D plate (11), and sector dash receiver (12) is connected with A/D plate (11) through data wire with array received plate (13).
5. a kind of sector cementing according to claim 4 and interval transit time logging instrument is characterized in that: sector dash receiver (12) is connected through data wire with sector receiving transducer (19); Array received plate (13) is connected with array receiving transducer (15), (16), (17) respectively through data wire; Transmitting probe (20) is connected through data wire with expelling plate (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100562490A CN102383786A (en) | 2010-08-30 | 2011-03-09 | Sector cement bonding and sound wave time difference logging instrument |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010266660 | 2010-08-30 | ||
| CN201010266660.6 | 2010-08-30 | ||
| CN2011100562490A CN102383786A (en) | 2010-08-30 | 2011-03-09 | Sector cement bonding and sound wave time difference logging instrument |
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| CN102383786A true CN102383786A (en) | 2012-03-21 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102635350A (en) * | 2012-04-28 | 2012-08-15 | 中国电子科技集团公司第二十二研究所 | Sector cement bond logging instrument |
| CN102913239A (en) * | 2012-11-07 | 2013-02-06 | 骆彦琳 | Array sound-wave logger |
| CN103352694A (en) * | 2013-06-25 | 2013-10-16 | 天津大学 | Logging instrument with acoustoelectric combination |
| CN103982177A (en) * | 2014-05-23 | 2014-08-13 | 中国电子科技集团公司第二十二研究所 | Acoustic wave logging transducer |
| CN106199722A (en) * | 2016-07-14 | 2016-12-07 | 天津大学 | A kind of method utilizing resonant acoustic wave measuring unit pipe well density of earth formations |
| CN108625844A (en) * | 2017-03-17 | 2018-10-09 | 中石化石油工程技术服务有限公司 | A kind of calibration of gamma and test device |
| CN109613115A (en) * | 2018-12-14 | 2019-04-12 | 中国特种设备检测研究院 | Acoustic detection method for the detection of cementation quality of gas storage well cement protection layer |
| CN114233275A (en) * | 2021-12-10 | 2022-03-25 | 天津大学 | Cementing Quality Evaluation Method Based on Array Acoustic Logging Time Difference and Dispersion Curve |
| CN115711119A (en) * | 2022-11-22 | 2023-02-24 | 中国石油大学(华东) | Experimental method for monitoring cement channeling in real time by using wall-attached acoustic system |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102635350A (en) * | 2012-04-28 | 2012-08-15 | 中国电子科技集团公司第二十二研究所 | Sector cement bond logging instrument |
| CN102635350B (en) * | 2012-04-28 | 2014-09-17 | 中国电子科技集团公司第二十二研究所 | Sector cement bond logging instrument |
| CN102913239A (en) * | 2012-11-07 | 2013-02-06 | 骆彦琳 | Array sound-wave logger |
| CN103352694A (en) * | 2013-06-25 | 2013-10-16 | 天津大学 | Logging instrument with acoustoelectric combination |
| CN103352694B (en) * | 2013-06-25 | 2016-06-08 | 天津大学 | A kind of acoustic-electric combination well detecting Instrument |
| CN103982177A (en) * | 2014-05-23 | 2014-08-13 | 中国电子科技集团公司第二十二研究所 | Acoustic wave logging transducer |
| CN106199722A (en) * | 2016-07-14 | 2016-12-07 | 天津大学 | A kind of method utilizing resonant acoustic wave measuring unit pipe well density of earth formations |
| CN108625844A (en) * | 2017-03-17 | 2018-10-09 | 中石化石油工程技术服务有限公司 | A kind of calibration of gamma and test device |
| CN109613115A (en) * | 2018-12-14 | 2019-04-12 | 中国特种设备检测研究院 | Acoustic detection method for the detection of cementation quality of gas storage well cement protection layer |
| CN109613115B (en) * | 2018-12-14 | 2021-02-02 | 中国特种设备检测研究院 | Acoustic detection method for detecting cementing quality of cement protective layer of gas storage well |
| CN114233275A (en) * | 2021-12-10 | 2022-03-25 | 天津大学 | Cementing Quality Evaluation Method Based on Array Acoustic Logging Time Difference and Dispersion Curve |
| CN114233275B (en) * | 2021-12-10 | 2023-11-14 | 天津大学 | Well cementation quality evaluation method based on array acoustic logging time difference dispersion curve |
| CN115711119A (en) * | 2022-11-22 | 2023-02-24 | 中国石油大学(华东) | Experimental method for monitoring cement channeling in real time by using wall-attached acoustic system |
| CN115711119B (en) * | 2022-11-22 | 2024-06-21 | 中国石油大学(华东) | Experimental method for monitoring cement channeling in real time by using borehole wall sticking acoustic system |
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Application publication date: 20120321 |