CN209231274U - The acoustic wave detection devices that the bonding quality of gas storage well cement protective layer is detected - Google Patents
The acoustic wave detection devices that the bonding quality of gas storage well cement protective layer is detected Download PDFInfo
- Publication number
- CN209231274U CN209231274U CN201822103764.XU CN201822103764U CN209231274U CN 209231274 U CN209231274 U CN 209231274U CN 201822103764 U CN201822103764 U CN 201822103764U CN 209231274 U CN209231274 U CN 209231274U
- Authority
- CN
- China
- Prior art keywords
- receiving sensor
- gas storage
- protective layer
- space receiving
- storage well
- 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.)
- Expired - Fee Related
Links
- 239000004568 cement Substances 0.000 title claims abstract description 64
- 238000001514 detection method Methods 0.000 title claims abstract description 51
- 239000011241 protective layer Substances 0.000 title claims abstract description 47
- 230000008878 coupling Effects 0.000 claims abstract description 14
- 238000010168 coupling process Methods 0.000 claims abstract description 14
- 238000005859 coupling reaction Methods 0.000 claims abstract description 14
- 239000011810 insulating material Substances 0.000 claims abstract description 11
- 239000010410 layer Substances 0.000 claims abstract description 6
- 239000010985 leather Substances 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 6
- 230000004807 localization Effects 0.000 claims description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 238000013144 data compression Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000007423 decrease Effects 0.000 claims description 2
- -1 polytetrafluoroethylene Polymers 0.000 claims description 2
- 229920002545 silicone oil Polymers 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 71
- 238000010586 diagram Methods 0.000 description 14
- 239000003921 oil Substances 0.000 description 13
- 238000000034 method Methods 0.000 description 9
- 238000012360 testing method Methods 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 6
- 238000011156 evaluation Methods 0.000 description 5
- 239000003129 oil well Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000005755 formation reaction Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 238000013523 data management Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 210000003128 head Anatomy 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000004451 qualitative analysis Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000004520 agglutination Effects 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010291 electrical method Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000009659 non-destructive testing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 238000013441 quality evaluation Methods 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000002463 transducing effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Abstract
The utility model discloses the acoustic wave detection devices that the bonding quality of a kind of pair of gas storage well cement protective layer is detected, and detect for the bonding quality to the cement protective layer for being located at gas storage well outer layer comprising: shell；Multi-core sheathed cable；Collar locator is fixed on the inside of shell；Electronic line structure is fixed on collar locator positive bottom, including signal amplifier, low-pass filter, mission controller, digital signal processor, coupling transformer, instrument amplifier, bandpass filter, analog-digital converter and high speed the spread of the rumours module；Emission sensor；Receiving sensor, short space receiving sensor and long space receiving sensor including being fixed on emission sensor positive bottom, short space receiving sensor is apart from case top 1.4m, long space receiving sensor is located at housing bottom, and between emission sensor and short space receiving sensor, sound insulating material is filled between short space receiving sensor and long space receiving sensor；And ground control system.
Description
Technical field
The utility model relates to a kind of acoustic wave detection devices, more particularly, to a kind of gas storage well to storage compressed gas
The acoustic wave detection devices that the bonding quality of external cement protective layer is detected.
Background technique
Gas storage well is the abbreviation of compressed gas well for storage, is vertically to be placed in underground for storing the well formula of compressed gas
Tubular equipment is the Typical Representative of subsurface pressure container, is chiefly used in Compressed Natural Gas Fueling Station, city gas peak shaving storage is matched
It stands and the fields such as industrial gas storage facility.
Its main part is by pit shaft, cement protective layer, wellhead assembly, downhole device, sewage pipe, surface pipe, centralizer
Deng composition.Cement protective layer between gas storage well bore and stratum plays an important role in terms of preventing gas storage well failure, on the one hand
Pit shaft can be fixed, the loosening of pit shaft, play are prevented and is flown out, pit shaft is on the other hand enveloped, prevents stratum corrosive media pair
The corrosion of pit shaft outer wall.For the bonding quality of gas storage well cement protective layer, currently without dedicated detection device, because of its structure
Feature is similar with oil/gas well, can use for reference oil gas well cementing operation quality evaluation logging technique.
In oil/gas well industry, a variety of primary cement evaluation logging techniquies are had been developed that.It is existing according to the difference of logging principle
Some primary cement evaluation logging techniquies can be divided into cementing class and cement acoustic impedance class, and corresponding logging method has sound wave
Amplitude is logged well (CBL), sound width/variable density log (CBL/VDL), attenuation rate cement bond log (CBT), sector cement bonding are surveyed
Well (SBT), cement evaluation log (CET), pulse echo well logging (PET), ring week ultra sonic scanner well logging (CAST) etc..
Gas storage well and oil/gas well function, depth, stratum, in terms of there are many differences: (1) function: storage
Gas well is a kind of storage pressure vessel, and oil/gas well provides the channel of oil-gas migration；(2) depth: gas storage well depth is usually no more than
300m, oil gas well depth is up to thousands of rice to upper myriametre；(3) stratum: shallow stratum geologic structure is simple where gas storage well, without
Naked eye well logging, oil/gas well geologic structure is complicated, need to first carry out the well logging of the naked eyes such as sound wave, electrical method, radioactivity；(4) well cementing operation: storage
Gas well prevents from corroding using the full well section well cementation of building building cement, and oil/gas well is only cemented the well in target zone using oil-well cement, separates oil gas
Water layer prevents from altering slot, and shallow stratum is that free pipe (no cement protective layer) is used for scale；(5) damage mode: gas storage well it is main
Damage mode is corrosion of the stratum media to pit shaft outer wall, and the main damage mode of oil/gas well is borehole fluid to shaft in wall
Corrosion.
Gas storage well cement protective layer bonding quality detection at present generally directlys adopt sound width/variable density log method and sets
It is standby, without considering the difference between gas storage well and oil/gas well, causes detection accuracy and longitudinal resolution low, be not able to satisfy gas storage
The requirement of well cement protective layer bonding quality detection.
Utility model content
The utility model provides the acoustic wave detection devices that the bonding quality of a kind of pair of gas storage well cement protective layer is detected,
It is detected to the bonding quality to gas storage well cement protective layer.
The bonding quality of in order to achieve the above object, the utility model provides a kind of pair of gas storage well cement protective layer is examined
The acoustic wave detection devices of survey are detected for the bonding quality to the cement protective layer for being located at gas storage well outer layer comprising:
Shell is in hollow cylinder, length 1.7m；
Multi-core sheathed cable, including a upper end, a lower end and a main body, main body are wound on a hoist engine, lower end
It is fixed on case top, for providing electric power, transmission telecommunications number and shell and its internal structure being driven to rise and decline；
Collar locator is fixed on the inside of shell, apart from case top 0.2m；
Electronic line structure is fixed on collar locator positive bottom, including signal amplifier, low-pass filter, transmitting control
Device, digital signal processor, coupling transformer, instrument amplifier, bandpass filter, analog-digital converter and high speed the spread of the rumours mould processed
Block；
Emission sensor is fixed on electronic line structure positive bottom, apart from case top 0.8m, for issuing 15kHz-
The acoustic signals of 20kHz；
Receiving sensor, short space receiving sensor and long space including being fixed on emission sensor positive bottom, which receive, to be passed
Sensor, short space receiving sensor are located at housing bottom, emission sensor apart from case top 1.4m, long space receiving sensor
Between short space receiving sensor, sound insulation material is filled between short space receiving sensor and long space receiving sensor
Material；And
Ground control system is connect with the upper end of hoist engine and multi-core sheathed cable, for controlling hoist engine, passing through survey
The moving distance for measuring multi-core sheathed cable carries out depth localization and carries out subsequent processing to electric signal；
Wherein, signal amplifier is connect with collar locator, for amplifying the box cupling signal of collar locator transmission；
Low-pass filter is connect with signal amplifier, for carrying out low-pass filtering to amplified box cupling signal；
Mission controller is connect with emission sensor；
Digital signal processor is connect with mission controller, and the voltage arteries and veins of 0~2000V is issued for controlling mission controller
Rush signal；
Coupling transformer is connect with short space receiving sensor and long space receiving sensor, is passed for receiving to short space
The full-wave train acoustic signals that sensor and long space receiving sensor are sent are coupled；
Instrument amplifier is connect with coupling transformer, and the full-wave train acoustic signals for exporting to coupling transformer are put
Greatly；
Bandpass filter is connect with instrument amplifier；
Analog-digital converter is connect with digital signal processor and bandpass filter；
High speed the spread of the rumours module is connect with digital signal processor；
The box cupling letter of full-wave train acoustic signals, low-pass filter output that digital signal processor exports analog-digital converter
Number carry out data compression, later again via high speed the spread of the rumours module by every 64ms data encoding be a frame and be uploaded to ground control system
System,
The outside of emission sensor, short space receiving sensor and long space receiving sensor is cased with a leather bag, leather bag
It is annular in shape, wall thickness 3mm, internal diameter 60mm, length 100mm, inside be contained with silicone oil and its top and bottom
Portion is respectively equipped with a filling oilhole,
Multiple perpendicular (axis) are evenly distributed on shell on the outside of each leather bag to hollow hole, on the shell on the outside of sound insulating material
Multiple horizontal (diameters) are evenly distributed with to hollow hole.
In an embodiment of the utility model, the emission sensor is piezoelectric ceramic transducer.
In an embodiment of the utility model, the instrument amplifier is INA128.
In an embodiment of the utility model, the bandwidth of the bandpass filter is between 10kHz~30kHz.
In an embodiment of the utility model, the analog-digital converter is AD9240, and the digital signal processor is
DSPic33EP256MC502。
In an embodiment of the utility model, the sound wave detected to the bonding quality of gas storage well cement protective layer is examined
Measurement equipment further include:
Clump weight is fixed on shell lower end；
Lifting hooks, and is fixed on the lower end of clump weight.
In an embodiment of the utility model, the signal that digital signal processor issues uses Manchester's code.
In an embodiment of the utility model, the sound insulating material is polytetrafluoroethylene (PTFE).
In an embodiment of the utility model, fills and be equipped with plug screw at oilhole.
In an embodiment of the utility model, the material of the shell is steel.
The acoustic wave detection devices that bonding quality provided by the utility model to gas storage well cement protective layer is detected are filled
Divide the design feature for considering gas storage well, the bonding quality of gas storage well cement protective layer can fast and accurately be detected,
And the bonding quality that can satisfy gas storage well cement protective layer is detected for the requirement in detection accuracy and longitudinal resolution.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described.It should be evident that the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is that the sonic detection that the bonding quality provided by the utility model to gas storage well cement protective layer is detected is set
The schematic diagram of standby middle subelement；
Fig. 2 is that the sonic detection that the bonding quality provided by the utility model to gas storage well cement protective layer is detected is set
The connection schematic diagram of standby middle electrical component；
Fig. 3 is the detection principle diagram of the utility model；
Fig. 4 is the cementing sonic detection full-wave train wavy curve schematic diagram of cement protective layer；
Fig. 5 is the cementing sonic detection full-wave train luminance curve synoptic diagram of cement protective layer.
Description of symbols: 1- shell；2- multi-core sheathed cable；3- collar locator；4- electronic line structure；41- letter
Number amplifier；42- low-pass filter；43- mission controller；44- digital signal processor；45- coupling transformer；46- instrument
Amplifier；47- bandpass filter；48- analog-digital converter；49- high speed the spread of the rumours module；5- emission sensor；6- receiving sensor；
61- short space receiving sensor；62- long space receiving sensor；63- sound insulating material；7- ground control system；8- erect (axis) to
Hollow hole；9- cross (diameter) is to hollow hole, 10- clump weight；11- lifting hooks.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe.Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are under that premise of not paying creative labor
Every other embodiment obtained, fall within the protection scope of the utility model.
The utility model is suitable for gas storage well of the vertical distance of gas storage bottom to well head between 40~300m.This
Utility model is based on sound width/variable density and detects basic principle, according to the requirement that gas storage well cement protective layer bonding quality detects, mentions
The acoustic wave detection devices that the bonding quality of a kind of pair of gas storage well cement protective layer is detected out, wherein sensor using
Single-emission and double-receiving liquid immersion type sonic sensor.
Fig. 1 is that the sonic detection that the bonding quality provided by the utility model to gas storage well cement protective layer is detected is set
The schematic diagram of standby middle subelement, Fig. 2 are that the bonding quality provided by the utility model to gas storage well cement protective layer is examined
The connection schematic diagram of electrical component in the acoustic wave detection devices of survey, Fig. 3 are the detection principle diagram of the utility model.As shown in Figure 1, Figure 2
It is shown, its packet of the acoustic wave detection devices that the bonding quality provided by the utility model to gas storage well cement protective layer is detected
It includes:
Shell 1 is in hollow cylinder, and length 1.7m, protection is played in the part that shell 1 is located at underground to whole equipment
The effects of each element of internal structure/route, fixing internal, in the present embodiment, the material selection of shell 1 is steel；
Multi-core sheathed cable 2, including a upper end, a lower end and a main body, main body are wound in a hoist engine and (do not show in figure
On out), 1 top of shell is fixed in lower end, for providing electric power, transmission telecommunications number and driving shell 1 and its internal structure
Rise and declines；
Collar locator 3 is fixed on the inside of shell 1, and apart from 1 top 0.2m of shell, collar locator 3 is this field
Commonly used equipment is worked based on electromagnetic induction principle, is well known to those skilled in the art, and is carried out in the utility model
Assist depth localization；
Electronic line structure 4, is fixed on 3 positive bottom of collar locator, including signal amplifier 41, low-pass filter 42,
Mission controller 43, digital signal processor 44, coupling transformer 45, instrument amplifier 46, bandpass filter 47, analog-to-digital conversion
Device 48 and high speed the spread of the rumours module 49；
Emission sensor 5 is fixed on 4 positive bottom of electronic line structure, apart from 1 top 0.8m of shell, for issuing
The acoustic signals of 15kHz-20kHz are illustrated in figure 4 the cementing sonic detection full-wave train wavy curve schematic diagram of cement protective layer,
For general pit shaft and stratum, well casing wave dominant frequency is 20kHz or so, and formation wave dominant frequency range is 14kHz~17kHz,
In order to meet the sensitivity and accuracy of detection, in the present embodiment, what emission sensor was selected is the piezoelectric ceramics transducing of 20kHz
Device；
Receiving sensor 6, short space receiving sensor 61 and long space including being fixed on 5 positive bottom of emission sensor connect
Sensor 62 is received, short space receiving sensor 61 is located under shell 1 apart from 1 top 1.4m of shell, long space receiving sensor 62
Portion, " source away from " (the distance between sensor) are the principal elements for determining detection accuracy and longitudinal resolution, and source is away from smaller, detection
Precision and longitudinal resolution are higher, but source is away from too small well casing wave and the direct wave, formation wave, primary reflection, repeatedly anti-of will lead to
Ejected wave is received by sensor simultaneously and can not be differentiated.Above-mentioned source in the utility model is away from being to be calculated by simulation and experiment test
And the best source finally obtained away from.Between emission sensor 5 and short space receiving sensor 61, short space receiving sensor 61 with
Sound insulating material 63 is filled between long space receiving sensor 62, in the present embodiment, what sound insulating material was selected is polytetrafluoroethyl-ne
Alkene；And
Ground control system 7 is connect with the upper end of hoist engine and multi-core sheathed cable 2, for controlling hoist engine, passing through
The moving distance for measuring multi-core sheathed cable 2 carries out depth localization and carries out subsequent processing to electric signal；
Wherein, signal amplifier 41 is connect with collar locator 3, for amplifying the box cupling of the transmission of collar locator 3
Signal；
Low-pass filter 42 is connect with signal amplifier 41, for carrying out low-pass filtering to amplified box cupling signal；
Mission controller 43 is connect with emission sensor 5；
Digital signal processor is connect with 44 mission controllers 43, issues 0~2000V's for controlling mission controller 43
Voltage pulse signal；
Coupling transformer 45 is connect with short space receiving sensor 61 and long space receiving sensor 62, for short space
The full-wave train acoustic signals that receiving sensor 61 and long space receiving sensor 62 are sent are coupled；
Instrument amplifier 46 is connect with coupling transformer 45, the full-wave train acoustic signals for exporting to coupling transformer 45
It amplifies, in the present embodiment, that instrument amplifier is selected is INA128；
Bandpass filter 47 is connect with instrument amplifier 46, in the present embodiment, the bandwidth of bandpass filter is set as being situated between
Between 10kHz~30kHz；
Analog-digital converter 48 is connect with digital signal processor 44 and bandpass filter 47, in the present embodiment, analog-to-digital conversion
That device is selected is AD9240,；
High speed the spread of the rumours module 49 is connect with digital signal processor 44；
Full-wave train acoustic signals that digital signal processor 44 exports analog-digital converter 48, low-pass filter 42 export
Box cupling signal carries out data compression, is again later a frame by every 64ms data encoding via high speed the spread of the rumours module 49 and is uploaded to ground
Face control system 7, in the present embodiment, what digital signal processor 44 was selected is DSPic33EP256MC502, Digital Signal Processing
The signal that device 44 issues uses Manchester's code.
The outside of emission sensor 5, short space receiving sensor 61 and long space receiving sensor 62 is cased with a leather bag
(not shown), leather bag is annular in shape, wall thickness 3mm, internal diameter 60mm, length 100mm, inside be contained with silicon
Oil and its top and bottom are respectively equipped with a filling oilhole, and plug screw is equipped at filling oilhole, and leather bag exists for balance sensor
Pressure in gas storage well.
Multiple perpendicular (axis) are evenly distributed on shell on the outside of each leather bag to hollow hole 8, to guarantee sensor transmission, connect
The collection of letters number can be normally carried out, and multiple horizontal (diameters) are evenly distributed on the shell on the outside of sound insulating material to hollow hole 9, prevent sound
Wave signal is propagated along shell and is interfered, and sound insulating material can prevent acoustic signals from propagating and interfering inside housings.
For further satisfaction practical application needs, in the present embodiment, to the bonding quality of gas storage well cement protective layer into
The acoustic wave detection devices of row detection further include:
Clump weight 10 is fixed on shell lower end, be using clump weight because, when the utility model is used, move down with
Carry out detection dependence is self gravity that the utility model is placed in the part inside gas storage well, for guarantee detection process smoothly into
Row, need to increase counterweight, clump weight 10 can be used the biggish metal of density and be fabricated, and diameter is with roughly equal with diameter of the housing
It is preferred, length is depending on practical counterweight needs；
Lifting hooks 11, is fixed on the lower end of clump weight, shape is cone and punches on it, in order to carry, tie up
Repair and maintain instrument.
In the prior art, the short space sensor in sound width/variable density log technology only receives the letter of Mintrop wave in full-wave train
Number, and given up the later arrivals signal comprising bulk information, especially the information of the cementing situation of second contact surface, second contact surface for
Gas storage well cement evaluation of protection layer no less important, and oil/gas well does not focus on second contact surface.The utility model is compiled using Manchester
Code sends different acquisition time orders, can control analog-digital converter 48 to acquire the data of 500us or 1500us, to realize short
Source receives all-wave column signal away from receiving sensor, to obtain more effective informations.
In the prior art, sound width/variable density log technology data analyze when the property based on oil-well cement and formulate and comment
Valence index, gas storage well seldom use oil-well cement, mostly use building building cement, also do not add cement additive in whipping process, and two
Person's acoustic properties has differences, especially interval transit time, and detection Acoustic Wave Propagation directly affects Data Management Analysis, the utility model
It is calculated by simulation and practical cement acoustics is tested, formulate Data Management Analysis index.
In addition, the left and right offset along time shaft can occur for the position of Mintrop wave when actual acquisition all-wave column signal, head is extracted
Wave maximum amplitude will provide a sample range, for example from 200us~300us, this range is known as position of strobe and gate
Width, this is common method in signal acquisition field, and the utility model is also same.
The utility model is to convert absolute acoustic amplitude-depth curve of Mintrop wave signal in full-wave train to protect with cement
Layer without it is cementing when acoustic amplitude be 100% opposite sound width-depth curve, calculation formula is as follows:
In formula:
U --- opposite acoustic amplitude, %；
A --- the acoustic amplitude to fathom a little, unit are millivolt (mV)；
Afp--- comparative test well or developmental tube measure the maximum acoustic amplitude without cementing, and unit is millivolt (mV).
Acoustic amplitude is bigger, and the first interface cementing situation is poorer.Opposite sound width curve is used for the first interface of quantitative analysis
Cementing situation, the present embodiment is using table 1 as classification foundation.
1 first interface agglutination sound width quality grading of table
It is illustrated in figure 5 the cementing sonic detection full-wave train luminance curve synoptic diagram of cement protective layer, the utility model uses
When, arrival time (abscissa) of the all-wave column signal received is according to the not phase such as casing inner diameter, cement density, density of earth formations
Together, it is embodied in entirety to move left and right, and variant with theoretical calculation numerical value, the range value (ordinate) of full-wave train is according to biography
Decaying, supply voltage during broadcasting etc. are also variant, and practical calibration is carried out in practical engineering application.
The processing of all-wave positive half cycle tune brightness, processing method are as follows: electronic line structure believes full-wave train are carried out to all-wave column signal
The electric signal with its amplitude proportional number is converted to, after ground control system carries out detection, only retains the positive half cycle portion of electric signal
Point, by this part, electric signal is presented on oscillograph or picture tube, modulates its point brilliance.Wave amplitude is big, voltage is high, and luminous point is just
It is bright, show that band is black in logging diagram.And point brilliance it is low when, appear dimmed in logging diagram band.Negative half period voltage is
Zero, luminous point does not work, and white ribbon is shown as in logging diagram.The band that variable density log figure exactly black (ash) white is met each other, with it
The depth of color indicates the power of the signal received, referred to as luminance.Signal amplitude is big, i.e., luminance is strong, conversely, signal amplitude
Small, then luminance is weak.Full-wave train luminance curve is used for the first interface of qualitative analysis and the cementing situation of second contact surface.
Full-wave train luminance curve is used for the cementing situation of qualitative analysis, can refer to " SY/T 6592-2016 primary cement evaluation
Method ", in actually detected, the luminance curve of different gas storage wells is widely different, generally by same gas storage well under different depth
Full-wave train luminance curvilinear characteristic mutually compared, to obtain quality grading, as shown in table 2.
2 first interface of table and the cementing luminance quality grading of second contact surface
It is cementing according to whole first interface of gas storage well and the cementing situation of second contact surface, overall merit gas storage well cement protective layer
Quality.
The utility model usage mode is as follows:
Step 1:
Using all gas medium in fluid couplant (such as water) displacement gas storage well bore, taken measures when necessary to pit shaft
Inner surface is cleared up, to remove greasy dirt and the impurity etc. that influence testing result；
Step 2:
By structure shown in FIG. 1, including collar locator, emission sensor, short space receiving sensor and long space
It is hung in gas storage well under receiving sensor, and adopts an effective measure and guarantee that structure shown in FIG. 1 is placed in the middle；
Step 3:
According to the parameter selections comparative test well demarcating file such as pit shaft material, internal diameter and wall thickness, or use comparative test pipe
Field calibration carries out the confirmation or adjustment of parameter；
Wherein, comparative test well demarcating file is known as calibration file in oil well logging, is known as marking in field of non destructive testing
It is fixed, it is general to be demarcated using the outer comparative test well entirely without cementing of well casing, acquire the most loud width in calibration process
Value is the A in formula (1)fp, the value and pit shaft material (velocity of sound), internal diameter and wall thickness (propagation distance) have relationship, therefore detect
The gas storage well of different size will be chosen at the demarcating file in the comparative test well of corresponding specification, this will affect to final result
Judgement, meanwhile, because test well can not be completely the same with actually detected gas storage well, the parameter for needing to adjust when detecting is mainly
Instrument supply voltage electric current and fading gain etc., to guarantee that detection data meets the related request of data acceptance.
Step 4:
Ground control system is operated, to control each working sensor, ground control system receives and stores the letter sent back to
Number.
Wherein, the acoustic signals of emission sensor transmitting, are incident on well tubular wall along different angle via couplant, due to each
In each interface reflection, refraction and the waveform conversion of sound wave can occur for the difference of medium acoustic impedance.In specific position with same angular
Degree bounce back couplant is simultaneously received sensor reception, obtains detection signal accordingly.
Step 5:
Hoist engine is controlled by ground control system, at the uniform velocity to transfer and above propose structure shown in Fig. 1, to obtain gas storage well not
Full-wave train with depth detects signal.
At the uniform velocity be in order to guarantee acquire signal stabilization, avoid because hoist engine drive multi-core sheathed cable accelerate suddenly or
Slow down mobile and sensor is caused to receive loss of data caused by data exception or excessive velocities.By verification experimental verification, not
Under detection speed more than 0.15m/s, stable detection data can get, certain speed will affect detection efficiency slowly excessively.
Step 6:
Ground control system carries out data processing, to obtain the bonding quality of gas storage well cement protective layer.
The acoustic wave detection devices that bonding quality provided by the utility model to gas storage well cement protective layer is detected are filled
Divide the design feature for considering gas storage well, the bonding quality of gas storage well cement protective layer can fast and accurately be detected,
And the bonding quality that can satisfy gas storage well cement protective layer detects the requirement in detection accuracy and longitudinal resolution.
Those of ordinary skill in the art will appreciate that: attached drawing is the schematic diagram of one embodiment, module in attached drawing or
Process is not necessarily implemented necessary to the utility model.
Those of ordinary skill in the art will appreciate that: the module in device in embodiment can describe to divide according to embodiment
It is distributed in the device of embodiment, corresponding change can also be carried out and be located in one or more devices different from the present embodiment.On
The module for stating embodiment can be merged into a module, can also be further split into multiple submodule.
Finally, it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that:
It can still modify to technical solution documented by previous embodiment, or be equal to part of technical characteristic
Replacement；And these are modified or replaceed, the utility model embodiment technical solution that it does not separate the essence of the corresponding technical solution
Spirit and scope.
Claims (10)
1. the acoustic wave detection devices that the bonding quality of a kind of pair of gas storage well cement protective layer is detected, for positioned at gas storage well
The bonding quality of the cement protective layer of outer layer is detected characterized by comprising
Shell is in hollow cylinder, length 1.7m；
Multi-core sheathed cable, including a upper end, a lower end and a main body, main body are wound on a hoist engine, and lower end is fixed
In case top, for providing electric power, transmission telecommunications number and shell and its internal structure being driven to rise and decline；
Collar locator is fixed on the inside of shell, apart from case top 0.2m；
Electronic line structure, is fixed on collar locator positive bottom, including signal amplifier, low-pass filter, mission controller,
Digital signal processor, coupling transformer, instrument amplifier, bandpass filter, analog-digital converter and high speed the spread of the rumours module；
Emission sensor is fixed on electronic line structure positive bottom, apart from case top 0.8m, for issuing 15kHz-20kHz
Acoustic signals；
Receiving sensor, short space receiving sensor and long space including being fixed on emission sensor positive bottom receive sensing
Device, for short space receiving sensor apart from case top 1.4m, long space receiving sensor is located at housing bottom, emission sensor with
Between short space receiving sensor, sound insulating material is filled between short space receiving sensor and long space receiving sensor；
And
Ground control system is connect with the upper end of hoist engine and multi-core sheathed cable, for control hoist engine, by measure it is more
The moving distance of core armored cable carries out depth localization and carries out subsequent processing to electric signal；
Wherein, signal amplifier is connect with collar locator, for amplifying the box cupling signal of collar locator transmission；
Low-pass filter is connect with signal amplifier, for carrying out low-pass filtering to amplified box cupling signal；
Mission controller is connect with emission sensor；
Digital signal processor is connect with mission controller, and the voltage pulse letter of 0~2000V is issued for controlling mission controller
Number；
Coupling transformer is connect with short space receiving sensor and long space receiving sensor, for short space receiving sensor
The full-wave train acoustic signals sent with long space receiving sensor are coupled；
Instrument amplifier is connect with coupling transformer, and the full-wave train acoustic signals for exporting to coupling transformer amplify；
Bandpass filter is connect with instrument amplifier；
Analog-digital converter is connect with digital signal processor and bandpass filter；
High speed the spread of the rumours module is connect with digital signal processor；
Full-wave train acoustic signals that digital signal processor exports analog-digital converter, low-pass filter output box cupling signal into
Every 64ms data encoding for a frame and is uploaded to ground control system via high speed the spread of the rumours module again later by row data compression,
The outside of emission sensor, short space receiving sensor and long space receiving sensor is cased with a leather bag, and leather bag is in circle
Ring-type, wall thickness 3mm, internal diameter 60mm, length 100mm, inside be contained with silicone oil and its top and bottom point
Not She You one fill oilhole,
It is evenly distributed with multiple vertical hollow holes on shell on the outside of each leather bag, is uniformly distributed on the shell on the outside of sound insulating material
There are multiple lateral hollow holes.
2. the acoustic wave detection devices that the bonding quality according to claim 1 to gas storage well cement protective layer is detected,
It is characterized in that, the emission sensor is piezoelectric ceramic transducer.
3. the acoustic wave detection devices that the bonding quality according to claim 1 to gas storage well cement protective layer is detected,
It is characterized in that, the instrument amplifier is INA128.
4. the acoustic wave detection devices that the bonding quality according to claim 1 to gas storage well cement protective layer is detected,
It is characterized in that, the bandwidth of the bandpass filter is between 10kHz~30kHz.
5. the acoustic wave detection devices that the bonding quality according to claim 1 to gas storage well cement protective layer is detected,
It is characterized in that, the analog-digital converter is AD9240, the digital signal processor is DSPic33EP256MC502.
6. the acoustic wave detection devices that the bonding quality according to claim 1 to gas storage well cement protective layer is detected,
It is characterized by further comprising:
Clump weight is fixed on shell lower end；
Lifting hooks, and is fixed on the lower end of clump weight.
7. the acoustic wave detection devices that the bonding quality according to claim 1 to gas storage well cement protective layer is detected,
It is characterized in that, the signal that digital signal processor issues uses Manchester's code.
8. the acoustic wave detection devices that the bonding quality according to claim 1 to gas storage well cement protective layer is detected,
It is characterized in that, the sound insulating material is polytetrafluoroethylene (PTFE).
9. the acoustic wave detection devices that the bonding quality according to claim 1 to gas storage well cement protective layer is detected,
Plug screw is equipped at oilhole it is characterized in that, filling.
10. the acoustic wave detection devices that the bonding quality according to claim 1 to gas storage well cement protective layer is detected,
The material of the shell is steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822103764.XU CN209231274U (en) | 2018-12-14 | 2018-12-14 | The acoustic wave detection devices that the bonding quality of gas storage well cement protective layer is detected |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822103764.XU CN209231274U (en) | 2018-12-14 | 2018-12-14 | The acoustic wave detection devices that the bonding quality of gas storage well cement protective layer is detected |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209231274U true CN209231274U (en) | 2019-08-09 |
Family
ID=67507731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822103764.XU Expired - Fee Related CN209231274U (en) | 2018-12-14 | 2018-12-14 | The acoustic wave detection devices that the bonding quality of gas storage well cement protective layer is detected |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209231274U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112593922A (en) * | 2020-12-16 | 2021-04-02 | 中国石油大学(华东) | Method and device for evaluating cementing quality of two well cementation interfaces through array acoustic logging |
-
2018
- 2018-12-14 CN CN201822103764.XU patent/CN209231274U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112593922A (en) * | 2020-12-16 | 2021-04-02 | 中国石油大学(华东) | Method and device for evaluating cementing quality of two well cementation interfaces through array acoustic logging |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6910388B2 (en) | Flow meter using an expanded tube section and sensitive differential pressure measurement | |
| US9891335B2 (en) | Wireless logging of fluid filled boreholes | |
| CN100538005C (en) | Determine that drilling model comments the equipment and the method for explaining archaic or dialectal words in current language and measuring to optimize the stratum | |
| EP0098778B1 (en) | Method and apparatus for cement bond logging | |
| NO315725B1 (en) | Device for measuring and monitoring resistivity outside a well pipe in a petroleum reservoir | |
| JP2013545980A (en) | System and method for communicating data between an excavator and a surface device | |
| US20040086623A1 (en) | Storage stable pan release coating and cleaner | |
| CN101392646A (en) | Acoustic logging instrument of novel acoustic array structure | |
| US4394754A (en) | Apparatus for low frequency torsional shear wave logging | |
| CN102797453B (en) | Well logging densimeter | |
| CN104818735A (en) | Exploring drill bit and method for detecting pile foundation by using exploring drill bit | |
| US2712124A (en) | ording | |
| US2999557A (en) | Acoustic detecting and locating apparatus | |
| CN109613115A (en) | The sound wave detecting method that the bonding quality of gas storage well cement protective layer is detected | |
| CN209231274U (en) | The acoustic wave detection devices that the bonding quality of gas storage well cement protective layer is detected | |
| RU2649195C1 (en) | Method of determining hydraulic fracture parameters | |
| CN100359130C (en) | Method for detecting sleeve fluid-loss point utilizing direct-reading ultrasound flowmete | |
| US4754839A (en) | Well borehole salinity measurement using acoustic velocity | |
| US5372038A (en) | Probe to specifically determine the injectivity or productivity of a petroleum well and measuring method implementing said probe | |
| CN201934096U (en) | Downhole pressure differential liquid level indicator | |
| CN1807834A (en) | Acoustic variable-density well logging instrument | |
| US20190203583A1 (en) | Downhole Calliper Tool | |
| CN109507298A (en) | The acoustic wave detection devices that the bonding quality of gas storage well cement protective layer is detected | |
| CN106595813A (en) | Oil-water interface detector for cavity construction of salt-cavern gas storage and detection method for oil-water interface | |
| US4542487A (en) | Method and apparatus for shear wave logging |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190809 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |