CN110173258A - A kind of ultrasound well week imaging logging instrument - Google Patents
A kind of ultrasound well week imaging logging instrument Download PDFInfo
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- CN110173258A CN110173258A CN201910538610.XA CN201910538610A CN110173258A CN 110173258 A CN110173258 A CN 110173258A CN 201910538610 A CN201910538610 A CN 201910538610A CN 110173258 A CN110173258 A CN 110173258A
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- 238000003384 imaging method Methods 0.000 title claims abstract description 39
- 238000002604 ultrasonography Methods 0.000 title claims abstract description 6
- 239000000523 sample Substances 0.000 claims abstract description 86
- 239000003129 oil well Substances 0.000 claims abstract description 20
- 238000012546 transfer Methods 0.000 claims abstract description 12
- 238000001514 detection method Methods 0.000 claims description 17
- 238000012937 correction Methods 0.000 claims description 8
- 238000012545 processing Methods 0.000 claims description 6
- 230000004907 flux Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 229920002472 Starch Polymers 0.000 claims 1
- 235000019698 starch Nutrition 0.000 claims 1
- 239000004568 cement Substances 0.000 description 12
- 230000007797 corrosion Effects 0.000 description 11
- 238000005260 corrosion Methods 0.000 description 11
- 238000011161 development Methods 0.000 description 7
- 238000011156 evaluation Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 239000007790 solid phase Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000012429 reaction media Substances 0.000 description 1
- 238000001028 reflection method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/005—Monitoring or checking of cementation quality or level
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
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- General Life Sciences & Earth Sciences (AREA)
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- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
A kind of ultrasound well week imaging logging instrument, is detected for oil well inner periphery cementing and casing quality, and data transfer components are configured with the first shell ring, and the data of the first probe assembly and the second probe assembly are transferred to ground control host by data transfer components；First probe assembly is configured with the second shell ring, the first shell ring and the connection of the second shell ring；Second probe assembly one end connects motor drive component, and the other end of the second probe assembly is equipped with ultrasonic transducer；First probe assembly and the second probe assembly detect oil well week Cementation Quality and casing quality；Motor drive component drives 360 ° of the second probe assembly rotations, and the second probe assembly drives ultrasonic transducer to 360 ° of transmitting ultrasonic pulse signals of oil well week casing；Main control module is for controlling the first probe assembly and the second probe assembly.Realization is disposably gone into the well, and is evaluated cementing, casing quality, is shortened measure period and reduce operating cost.
Description
Technical field
The present embodiments relate to petroleum well logging technology fields, and in particular to a kind of ultrasound well week imaging logging instrument.
Background technique
With deepening continuously for oil field development, the complex hole condition encountered is more and more, and during complete well, development well,
Primary cement evaluation and set damage detection have become an important factor for influencing oil field development.The quality of cementing quality is straight in development well
Connect the development plan for being related to later period oil/gas well, if can high-efficiency mining gone out the oil gas in well；Whether can be very good to seal
Water barrier.Development well middle sleeve quality is directly related to the period of oil gas well mining and the service life of well.But casing is caused to become at present
The reason of shape be it is diversified, find out cause set damage the reason of, for prevention set damage be of great significance.
Currently, still with traditional CBL (Acoustic Amplitude Log) and VDL, (acoustic variable-density is surveyed for cementing quality detection evaluation
Well) based on, but as completion mode is different, hole condition complexity increases, so that traditional logging technique is unable to satisfy engineering and needs
It asks.Enter stage middle and later periods in oil field development, due to the chemistry of liquid inside and outside the anisotropy of reservoir stress, artificial recharge and well
Phenomena such as long-term influence of the effects of corrosion, Casing Failure breakage, deformation, corrosion, becomes increasingly conspicuous.Need a kind of ultrasonic well week
Imaging logging techniques scheme.
Summary of the invention
For this purpose, the embodiment of the present invention provides a kind of ultrasonic well week imaging logging instrument, 360 ° of petroleum casing can be scanned
Data in range, it is ensured that evaluate the accuracy of Cementation Quality, judge inside pipe casing and external condition comprehensively, can be applicable to
Tight formation crack identification and ground stress analysis etc. in open hole well.
To achieve the goals above, the embodiment of the present invention provides the following technical solutions: a kind of ultrasound well week imaging logging instrument,
It is detected for oil well inner periphery cementing and casing quality, including data transfer components, the first probe assembly, motor
Driving assembly and the second probe assembly；The data transfer components are configured with the first shell ring, and data transfer components are used for first
The data of probe assembly and the second probe assembly are transferred to ground control host；First probe assembly is configured with second
Section, first shell ring and the connection of the second shell ring；The motor drive component is connected to first probe assembly one end, and first
Probe assembly includes mud wave detector；Second probe assembly one end connects the motor drive component, the second detection group
The other end of part is equipped with ultrasonic transducer；
First probe assembly and the second probe assembly be used for oil well week Cementation Quality and casing quality into
Row detection；
The motor drive component drives second probe assembly to rotate 360 °, and second probe assembly drives
The ultrasonic transducer is to 360 ° of transmitting ultrasonic pulse signals of oil well week casing；
First probe assembly and the second probe assembly are connected with main control module, and main control module is used for the first detection group
Part and the second probe assembly are controlled.
As the preferred embodiment of ultrasonic well week imaging logging instrument, first probe assembly is arranged in second shell ring
The side in portion, second shell ring is equipped with mud detection window.
As the preferred embodiment of ultrasonic well week imaging logging instrument, the ultrasonic transducer is connected with the first AFE(analog front end) electricity
Road, first analog front circuit are connected with signal deteching circuit, and the signal deteching circuit is connected with the first Acquisition Circuit,
First Acquisition Circuit connects the main control module.
As the preferred embodiment of ultrasonic well week imaging logging instrument, the mud wave detector is connected with the second AFE(analog front end) electricity
Road, second analog front circuit are connected with all-wave Acquisition Circuit, and the all-wave Acquisition Circuit connects the main control module.
As the preferred embodiment of ultrasonic well week imaging logging instrument, second probe assembly includes rotary joint, the rotation
Adapter connects between the motor drive component and ultrasonic transducer.
As the preferred embodiment of ultrasonic well week imaging logging instrument, rectifier, the correction are equipped on the outside of the rotary joint
Device is connect by bearing with the side wall of the rotary joint, and the rectifier includes correction arm, and the correction arm is annularly to institute
State the surrounding stretching, extension of rotary joint.
As the preferred embodiment of ultrasonic well week imaging logging instrument, first probe assembly further includes temperature sensor, institute
Temperature sensor is stated for detecting the temperature data inside oil well；
First probe assembly further includes pressure sensor, and the pressure sensor is used to detect the pressure inside oil well
Force data；
First probe assembly further includes geomagnetic sensor, and the geomagnetic sensor is used to pass through electromagnetic exploration petroleum
Spatial distribution characteristic inside well.
As the preferred embodiment of ultrasonic well week imaging logging instrument, the temperature sensor, pressure sensor and earth magnetism sensing
Device is connected with signal processing circuit, and the signal processing circuit is connected with the second Acquisition Circuit, the second Acquisition Circuit and master control mould
Block establishes connection.
As the preferred embodiment of ultrasonic well week imaging logging instrument, the geomagnetic sensor is connected with magnetic flux gate drive circuit.
As the preferred embodiment of ultrasonic well week imaging logging instrument, first probe assembly and the second probe assembly are connected with
Power module, the power module are also connected with the motor drive component.
The embodiment of the present invention has the advantages that the ultrasonic wave by inspiring different frequency, measurement from jacket exterior and
The reflected ultrasonic wave wave train of internal interface, the rate of decay of the received wave train are able to indicate that cement/ferrule interface cement
Cementing quality, and the echo frequency of casing provide Casing Detection needed for pipe thickness information.Casing can be scanned
Data within the scope of 360 ° guarantee the accuracy of evaluation Cementation Quality, and comprehensive judgement inside pipe casing and external condition.
Realization is disposably gone into the well, and is evaluated cementing, casing quality, is shortened measure period and reduce operating cost；In cement gel
Knot evaluation aspect, can make accurate judgement, more intuitive understanding ring to solid phase cement, liquid phase water, not cementing microgap, gas
Kongxiang state；Context of detection is damaged in set, can identify casing internal-and external diameter/wall thickness, corrosion condition, casing corrosion situation is made quantitative
Judgement；It can be using the monitoring aspect of drilling fluid, cement thickness, perforating quality.
Detailed description of the invention
It, below will be to embodiment party in order to illustrate more clearly of embodiments of the present invention or technical solution in the prior art
Formula or attached drawing needed to be used in the description of the prior art are briefly described.It should be evident that the accompanying drawings in the following description is only
It is merely exemplary, it for those of ordinary skill in the art, without creative efforts, can also basis
The attached drawing of offer, which is extended, obtains other implementation attached drawings.
Structure depicted in this specification, ratio, size etc., only to cooperate the revealed content of specification, for
Those skilled in the art understands and reads, and is not intended to limit the invention enforceable qualifications, therefore does not have technical
Essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influencing the function of the invention that can be generated
Under effect and the purpose that can reach, should all still it fall in the range of disclosed technology contents obtain and can cover.
Fig. 1 is a kind of ultrasonic well week imaging logging instrument structural schematic diagram provided in an embodiment of the present invention；
Fig. 2 is a kind of ultrasonic well week imaging logging instrument hardware structure schematic diagram provided in an embodiment of the present invention；
Fig. 3 is the logging effect figure using the ultrasonic well week imaging logging instrument of the present invention；
In figure: 1, data transfer components；2, the first probe assembly；3, motor drive component；4, the second probe assembly；5,
One shell ring；6, the second shell ring；7, mud wave detector；8, ultrasonic transducer；9, main control module；10, mud detection window；11,
First analog front circuit；12, signal deteching circuit；13, the second analog front circuit；14, all-wave Acquisition Circuit；15, it rotates
Connector；16, rectifier；17, arm is corrected；18, temperature sensor；19, pressure sensor；20, geomagnetic sensor；21, at signal
Manage circuit；22, the second Acquisition Circuit；23, magnetic flux gate drive circuit；24, power module；25, the first Acquisition Circuit.
Specific embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book is understood other advantages and efficacy of the present invention easily, it is clear that described embodiment is the present invention one
Section Example, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not doing
Every other embodiment obtained under the premise of creative work out, shall fall within the protection scope of the present invention.
In the present embodiment, the hardware module and circuit being related to are all made of existing scheme in the prior art.The present invention is implemented
In example, " well week " is usual appellation of the those skilled in the art to oil well inner periphery.
Referring to Fig. 1 and Fig. 2, the embodiment of the present invention provides a kind of ultrasonic well week imaging logging instrument, is used for oil well inner periphery
Cementing and casing quality are detected, including data transfer components 1, the first probe assembly 2, motor drive component 3 and
Two probe assemblies 4；The data transfer components 1 are configured with the first shell ring 5, and data transfer components 1 are used for the first probe assembly 2
Ground control host is transferred to the data of the second probe assembly 4；First probe assembly 2 is configured with the second shell ring 6, described
First shell ring 5 and the connection of the second shell ring 6；The motor drive component 3 is connected to described first probe assembly, 2 one end, and first visits
Surveying component 2 includes mud wave detector 7；Described second probe assembly, 4 one end connects the motor drive component 3, the second detection
The other end of component 4 is equipped with ultrasonic transducer 8.First probe assembly 2 and the second probe assembly 4 were used for oil well week
Cementation Quality and casing quality are detected.The motor drive component 3 drives second probe assembly 4 to carry out 360 °
Rotation, second probe assembly 4 drive the ultrasonic transducer 8 to 360 ° of transmitting ultrasonic pulse letters of oil well week casing
Number.First probe assembly 2 and the second probe assembly 4 are connected with main control module 9, and main control module 9 is used for the first detection group
Part 2 and the second probe assembly 4 are controlled.
In one embodiment of ultrasonic well week imaging logging instrument, first probe assembly 2 is arranged in second shell ring 6
The side of inside, second shell ring 6 is equipped with mud detection window 10.The ultrasonic transducer 8 is connected with the first AFE(analog front end)
Circuit 11, first analog front circuit 11 are connected with signal deteching circuit 12, and the signal deteching circuit 12 is connected with
One Acquisition Circuit 25, first Acquisition Circuit 25 connect the main control module 9.The mud wave detector 7 is connected with second
Analog front circuit 13, second analog front circuit 13 are connected with all-wave Acquisition Circuit 14, the all-wave Acquisition Circuit 14
Connect the main control module 9.Second probe assembly 4 includes rotary joint 15, and the rotary joint 15 connects the motor
Between driving assembly 3 and ultrasonic transducer 8.The design of rotary joint 15 enables the second probe assembly 4 in motor drive component 3
Drive under rotated, so that ultrasonic transducer 8 be made to carry out ultrasonic wave transmitting during rotation.
Specifically, analog front circuit is mainly by impedance matching and pre-amplification, signal behavior, bandpass filtering, programming amplifying
(PGA) it forms；The purpose of analog front circuit is the analog signal for handling signal source and providing, and is carried out at digitlization and analysis to it
Reason.Analog front circuit can carry out signal amplification, when the signal received is excessively faint, can not meet the requirement of system carrier-to-noise ratio
When, it to be amplified using low-noise amplifier in front end, to improve carrier-to-noise ratio.In order to realize certain configuration of transmission channel,
Or in order to avoid certain interference, analog front circuit realization converts certain channels.
In one embodiment of ultrasonic well week imaging logging instrument, rectifier 16 is equipped on the outside of the rotary joint 15, it is described
Rectifier 16 is connect by bearing with the side wall of the rotary joint 15, and the rectifier 16 includes correction arm 17, the correction
Arm 17 is annularly stretched to the surrounding of the rotary joint 15.The purpose of rectifier 16 is guaranteed in 15 rotary course of rotary joint
It is upright.
In one embodiment of ultrasonic well week imaging logging instrument, first probe assembly 2 further includes temperature sensor 18,
The temperature sensor 18 is used to detect the temperature data inside oil well；First probe assembly 2 further includes pressure sensing
Device 19, the pressure sensor 19 are used to detect the pressure data inside oil well；First probe assembly 2 further includes earth magnetism
Sensor 20, the geomagnetic sensor 20 are used for through the spatial distribution characteristic inside electromagnetic exploration oil well.The temperature
Sensor 18, pressure sensor 19 and geomagnetic sensor 20 are connected with signal processing circuit 21, and the signal processing circuit 21 connects
It is connected to the second Acquisition Circuit 22, the second Acquisition Circuit 22 establishes connection with main control module 9.The geomagnetic sensor 20 is connected with magnetic
Open gate driving circuit 23.Acquisition Circuit and magnetic flux gate drive circuit 23 are all made of the prior art.First probe assembly 2 and
Two probe assemblies 4 are connected with power module 24, and the power module 24 is also connected with the motor drive component 3.Power module 24
For powering to the first probe assembly 2, the second probe assembly 4 and motor drive component 3.
The embodiment of the present invention is mounted on the ultrasonic transducer 8 on the rotary joint 15 of instrument bottom using one.Rotation
Turn probe to rotate with 7.5 revolutions per seconds of speed, and emit 250~450kHz ultrasonic beam to casing, ultrasonic transducer 8 inspires
The ultrasonic wave of different frequency is measured from jacket exterior and the reflected ultrasonic wave wave train of internal interface.The received wave train returns
The wave time can evaluate casing inner diameter, and the resonance wave frequency rate of casing provide Casing Detection needed for pipe thickness information.
These independent waveforms can obtain casing thickness, internal diameter and smoothness of inner wall data from initial echo after treatment, thus
Evaluable casing corrosion and deformation.
Technical solution of the present invention can scan the data within the scope of 360 ° of casing, and ensure that can evaluate cementing matter
Amount, and judge inside pipe casing and external condition.When ultrasonic pulse reflection method measures, ultrasonic transducer 8 is internal loopback probe, first
A ultrasonic pulse signal first is motivated to transmitting probe, ultrasonic pulse signal is propagated be then incident in casing in a fluid
Wall, wherein most acoustic wave energy is reflected to be received by energy converter, and remaining acoustic wave energy sleeve pipe, acoustic signals are covering
Multiple reflection is carried out between pipe and cement sheath and casing and surface of stratum.On each surface, all there can be some energy to be reflected,
Some energy transmissions are gone out, and the size of energy is determined by the difference of two kinds of acoustic impedances.By the monitoring of acoustic impedance, into
And cement when cementing situation in annular space can be evaluated with the density of reaction medium.
Referring to Fig. 3, using being from left to right divided into Shi Erdao in the logging diagram of technical solution of the present invention:
First: magnetic orientation, natural gamma, probe revolving speed and instrument eccentric curve.
Second: it fathoms.
Third and fourth road: echo amplitude curve reacts internal surface of sleeve pipe situation.
Five, the six: casing inside radius minimum value, maximum value and average value, casing outer radius average value.
7th: casing inner diameter value subtract average value imaging curve, by color gradient react internal surface of sleeve pipe burn into scratch,
Situations such as fouling.
8th: casing wall thickness maximum value, average value and minimum value.
9th: casing thickness subtracts average value imaging road, reacts casing wall thickness situation of change by color gradient.
Tenth: cementing acoustic impedance image.
10th one: cementing acoustic impedance solid, liquid, gas, not cementing fine quantitative scoring point counting Butut.
12nd: cementing annular space integrated imaging figure.
Specifically, the lossless rotten judgment criteria of casing wall is: 1, echo amplitude is high；2, sectional side elevation internal-and external diameter value is regular；3, wall
Thick most sizes values are overlapped；4, the imaging of internal diameter wall thickness is of light color.
Casing corrosion judgment criteria is: 1, echo amplitude is small；2, internal-and external diameter fluctuation is big in sectional side elevation；3, wall thickness most sizes values
Difference is big；4, internal diameter wall thickness imaging color is deep.
Internal diameter corrosion judgment criteria is: 1, echo amplitude difference is high, abnormal jet black colors；2, sectional side elevation inner diameter values it is maximum,
Small value difference is different big；3, wall thickness becomes smaller at aberration value, and color is deep；4, internal diameter becomes larger at aberration value, and color is deep.
Sleeve outer damages rotten judgment criteria: 1, echo amplitude is normal, and internal diameter is normal；2, the imaging of internal diameter difference is of light color.
3, wall thickness difference color is deep.Internal diameter is normal, and wall thickness reduces, sleeve outer corrosion.
In Fig. 3, well 447-451.5m casing abnormal show, minimum wall thickness (MINI W.) is 0.28in (engineering value 0.317in), maximum
Internal diameter is 3.14in (engineering value 3.183in).Determine wall thickness missing 22.65%, internal diameter missing 0.32%.This section of casing inner diameter is not
It changes (in works scope), and wall thickness missing is very serious.Comprehensive judgement sleeve outer heavy corrosion.
The embodiment of the present invention is reflected back by inspiring the ultrasonic wave of different frequency, measurement from jacket exterior and internal interface
The ultrasonic wave wave train come, the rate of decay of the received wave train are able to indicate that cement/ferrule interface cementing quality, and
Pipe thickness information needed for the echo frequency of casing provides Casing Detection.The number within the scope of 360 ° of casing can be scanned
According to, the accuracy of guarantee evaluation Cementation Quality, and comprehensive judgement inside pipe casing and external condition.Under realizing disposably
Well evaluates cementing, casing quality, shortens measure period and reduce operating cost；It, can in terms of cement bond appraisal
Accurate judgement, more intuitive understanding annular space phase are made to solid phase cement, liquid phase water, not cementing microgap, gas；It is damaged in set
Context of detection, can identify casing internal-and external diameter/wall thickness, corrosion condition, make rational judgment to casing corrosion situation；It can be using set
The monitoring aspect of pipe centralizer, cement thickness, perforating quality.
Although above having used general explanation and specific embodiment, the present invention is described in detail, at this
On the basis of invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Therefore,
These modifications or improvements without departing from theon the basis of the spirit of the present invention are fallen within the scope of the claimed invention.
Claims (10)
1. it is a kind of ultrasound well week imaging logging instrument, which is characterized in that including data transfer components (1), the first probe assembly (2),
Motor drive component (3) and the second probe assembly (4)；The data transfer components (1) are used for the first probe assembly (2) and the
The data of two probe assemblies (4) are transferred to ground control host；The motor drive component (3) is connected to the first detection group
Part (2) one end, the first probe assembly (2) include mud wave detector (7)；Described in second probe assembly (4) one end connection
The other end of motor drive component (3), the second probe assembly (4) is equipped with ultrasonic transducer (8)；
First probe assembly (2) and the second probe assembly (4) are used for oil well week Cementation Quality and casing quality
It is detected；
The motor drive component (3) drives second probe assembly (4) to rotate 360 °, second probe assembly
(4) drive the ultrasonic transducer (8) to 360 ° of transmitting ultrasonic pulse signals of oil well week casing；
First probe assembly (2) and the second probe assembly (4) are connected with main control module (9), and main control module (9) is used for the
One probe assembly (2) and the second probe assembly (4) are controlled.
2. a kind of ultrasonic well week imaging logging instrument according to claim 1, which is characterized in that the data transfer components
(1) the first shell ring (5) are configured with；First probe assembly (2) is configured with the second shell ring (6), first shell ring (5) and the
Two shell rings (6) connection；
First probe assembly (2) setting is internal in second shell ring (6), and the side of second shell ring (6) is equipped with mud
It starches detection window (10).
3. a kind of ultrasonic well week imaging logging instrument according to claim 1, which is characterized in that the ultrasonic transducer (8)
It is connected with the first analog front circuit (11), first analog front circuit (11) is connected with signal deteching circuit (12), institute
It states signal deteching circuit (12) to be connected with the first Acquisition Circuit (25), first Acquisition Circuit (25) connects the main control module
(9)。
4. a kind of ultrasonic well week imaging logging instrument according to claim 1, which is characterized in that the mud wave detector
(7) it being connected with the second analog front circuit (13), second analog front circuit (13) is connected with all-wave Acquisition Circuit (14),
The all-wave Acquisition Circuit (14) connects the main control module (9).
5. a kind of ultrasonic well week imaging logging instrument according to claim 1, which is characterized in that second probe assembly
(4) include rotary joint (15), the rotary joint (15) connect the motor drive component (3) and ultrasonic transducer (8) it
Between.
6. a kind of ultrasonic well week imaging logging instrument according to claim 5, which is characterized in that the rotary joint (15) is outside
Side is equipped with rectifier (16), and the rectifier (16) is connect by bearing with the side wall of the rotary joint (15), the correction
Device (16) includes correction arm (17), and correction arm (17) is annularly stretched to the surrounding of the rotary joint (15).
7. a kind of ultrasonic well week imaging logging instrument according to claim 1, which is characterized in that first probe assembly
It (2) further include temperature sensor (18), the temperature sensor (18) is used to detect the temperature data inside oil well；
First probe assembly (2) further includes pressure sensor (19), and the pressure sensor (19) is for detecting oil well
Internal pressure data；
First probe assembly (2) further includes geomagnetic sensor (20), and the geomagnetic sensor (20) is for passing through electromagnetic method
Detect the spatial distribution characteristic inside oil well.
8. a kind of ultrasonic well week imaging logging instrument according to claim 7, which is characterized in that the temperature sensor
(18), pressure sensor (19) and geomagnetic sensor (20) are connected with signal processing circuit (21), the signal processing circuit
(21) it is connected with the second Acquisition Circuit (22), connection is established in the second Acquisition Circuit (22) and main control module (9).
9. a kind of ultrasonic well week imaging logging instrument according to claim 7, which is characterized in that the geomagnetic sensor (20)
It is connected with magnetic flux gate drive circuit (23).
10. a kind of ultrasonic well week imaging logging instrument according to claim 1, which is characterized in that first probe assembly
(2) it is connected with power module (24) with the second probe assembly (4), the power module (24) is also connected with the motor drive component
(3)。
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| CN201910538610.XA CN110173258A (en) | 2019-06-20 | 2019-06-20 | A kind of ultrasound well week imaging logging instrument |
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| CN201910538610.XA CN110173258A (en) | 2019-06-20 | 2019-06-20 | A kind of ultrasound well week imaging logging instrument |
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| WO2015088351A1 (en) * | 2013-12-09 | 2015-06-18 | Bergen Technology Center As | Pulse-wave ultrasound production well logging method and tool |
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