CN109781667A - Optical nonradioactive sand mulling concentration measuring device and method - Google Patents
Optical nonradioactive sand mulling concentration measuring device and method Download PDFInfo
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- CN109781667A CN109781667A CN201910085749.3A CN201910085749A CN109781667A CN 109781667 A CN109781667 A CN 109781667A CN 201910085749 A CN201910085749 A CN 201910085749A CN 109781667 A CN109781667 A CN 109781667A
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- 239000004576 sand Substances 0.000 title claims abstract description 50
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- 239000012530 fluid Substances 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 10
- 239000010980 sapphire Substances 0.000 claims description 10
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- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention provides an optical nonradioactive sand mixing concentration measuring device and a method, wherein the device comprises a straight tee structure with two ends provided with a union, two ends of the straight tee with the union are provided with movable sealing connecting fasteners, the front end of the straight tee is connected with a sand converging pump end of a main discharge pipe of a sand mixing truck, and the rear end of the straight tee is connected with a discharge end of the main discharge pipe; a transparent sealing plate is arranged at the bottom of the union vertical port, an optical concentrator is arranged on the transparent sealing plate, an infrared CCD array sensor is arranged at the upper end of the optical concentrator, the optical axis of the infrared CCD array sensor is coaxial, and a cover plate is arranged at the upper end of the infrared CCD array sensor; and a sealing tube which is mutually sealed with the union straight-through part is arranged at the bottom of the port vertical to the union, and an infrared laser is arranged in the sealing tube. The invention realizes the accurate measurement of the concentration of the mixed sand by utilizing the infrared laser reflection principle, and simultaneously can eliminate the safety risk and the control problem of radioactive sources in the fracturing field operation.
Description
Technical field
The invention belongs to oil, gas well exploration and development field, and in particular to a kind of optics on-radiation mulling measurement of concetration dress
It sets and method.
Background technique
Hydraulic fracturing technology is the height that in fluid high-speed injection well, will have been suppressed by shaft bottom by ground high pressure pump truck vehicle group
Pressure makes oil, gas-bearing formation rock rupture generate crack.After preventing pump truck from stopping working, pressure decline, crack voluntarily closes up again,
In injection liquid after formation fracture, the sand of several times bigger than density of earth formations is added using fracturing blender truck, enters together with fluid and splits
Seam, and permanently rest in crack, supporting crack is in the open state, and oil, air-flow environment is made to be improved for a long time.Therefore, it mixes
Sand vehicle adds sand concentration real-time detection to be a key link of entire pressing crack construction process.Whether mulling concentration rationally will be direct
Influence validity, chronicity and the economy of fracturing methods effect.
Construction site uses gamma-rays transmission principle at present, and the variation of sand concentration in mulling liquid is measured using radioactive source,
Since when detecting sand concentration using radioactive density meter, there are the hidden danger that escape of radioactivity causes human injury, in addition in pressure break
During job execution, harsh environmental conditions, vibration is big, the generation of emission source leakage accident easily occurs, and uses other technologies
It is undesirable that effect is monitored to sand concentration.
Summary of the invention
In order to overcome current construction site using gamma-rays transmission principle, deposited when detecting sand concentration using radioactive density meter
The hidden danger of human injury is caused in escape of radioactivity, border inclement condition, vibration is big, emission source leakage accident easily occurs and monitors
The undesirable problem of effect, the present invention provide a kind of optics on-radiation mulling apparatus for measuring concentration and method, and the present invention utilizes
Infrared laser principle of reflection realizes the precise measurement of mulling concentration, while radioactive source exists when can also eliminate pressure break field operation
Security risk and control problem.
The technical solution adopted by the present invention are as follows:
A kind of optics on-radiation mulling apparatus for measuring concentration, including a both ends band union three-port structure, it is straight-through with union
Both ends be equipped with movable sealing connection fastener, front end and fracturing blender truck discharge supervisor converge sand pump end and connects, and remittance is responsible in rear end and discharge
Outlet side connection；One transparent sealing plate is set in the vertical port bottom of union, is provided with optical focussing device on transparent sealing plate,
Optical focussing device upper end is equipped with infrared CCD sensor array, and optical axial is coaxial, and infrared CCD sensor array upper end is equipped with
Cover board；It is arranged one in the bottom of port vertical with union and divides the seal pipe that seals against each other with union straight-through portion, in the seal pipe
Equipped with infrared laser.
The optical focussing device by optical male microscope group at.
The planar section of the optical collection device convex lens closely connects with infrared CCD sensor array optics receiving portion
It connects.
The cover board is sealing cover.
The infrared laser is externally provided with laser enclosure.
The transparent sealing plate is sapphire glass, with a thickness of 3-5mm.
Threeway of the both ends with union three-port structure is made of nylon PA66 material.
A kind of optics on-radiation mulling concentration measuring method, specific steps are as follows: first by the straight-through both ends with union
Installation activity is tightly connected fastener, and front end is discharged supervisor's remittance sand pump end with fracturing blender truck and connect, and rear end and discharge supervisor converge and be discharged
End connection；Then infrared laser issue laser energy act in the mulling liquid of pressure break, the sand body in mulling liquid by
The energy excitation of the laser generates strong reflection, is given and is collected by the reflected light that optical focussing device is scattered, and enhancing is anti-
Penetrate the signal-to-noise ratio of optical signal；The infrared signal of convergence is converged on infrared CCD sensor array, infrared array CCD is passed through
Sensor detects the luminous intensity that it is reflected, the sand body content in the output valve and fracturing fluid of infrared array ccd sensor
Proportional, i.e. sand body content is higher, and the output valve of infrared array ccd sensor is bigger, finally, by infrared array
Content value corresponding to the output characteristics and sand body of ccd sensor carries out quantization calibration, you can get it sand in fracturing fluid in real time
The content value of body.
The invention has the benefit that
The present invention realizes the precise measurement of mulling concentration using infrared laser principle of reflection, while can also eliminate pressure break field operation
When radioactive source existing for security risk and control problem.
When to being acted on the sand body in fracturing fluid during mulling using laser energy, sand body surface is by laser energy
Excitation generate reflected light, the luminous intensity that it is reflected is detected using infrared array ccd sensor, infrared array CCD pass
Sand body content in the output valve and fracturing fluid of sensor is proportional, i.e. sand body content is higher, infrared array ccd sensor
It uses that value is bigger, quantization calibration is carried out by content value corresponding to output characteristics to infrared array ccd sensor and sand body,
You can get it in real time in fracturing fluid sand body content value.
The present invention is described in further details below with reference to accompanying drawings and embodiments.
Detailed description of the invention
Fig. 1 is a kind of optics on-radiation mulling apparatus for measuring concentration overall structure diagram.
In figure, appended drawing reference are as follows: 1, cover board, 2, infrared CCD sensor array, 3, optical focussing device, 4, transparent sealing plate,
5, union, 6, infrared laser, 7, laser enclosure.
Specific embodiment
Embodiment 1:
In order to overcome current construction site using gamma-rays transmission principle, exists when detecting sand concentration using radioactive density meter and put
Penetrating property leaks the hidden danger for causing human injury, and border inclement condition, vibration is big, emission source leakage accident and monitoring effect easily occurs
Undesirable problem, the present invention provide a kind of optics on-radiation mulling apparatus for measuring concentration as shown in Figure 1 and method, this hair
The bright precise measurement that mulling concentration is realized using infrared laser principle of reflection, while radioactivity when can also eliminate pressure break field operation
Security risk existing for source and control problem.
A kind of optics on-radiation mulling apparatus for measuring concentration, including both ends band 5 three-port structure of union, band union 5
Straight-through both ends be equipped with movable sealing connection fastener, front end and fracturing blender truck discharge supervisor converge sand pump end and connects, rear end be discharged
Supervisor's remittance outlet side connection；One transparent sealing plate 4 is set in the vertical port bottom of union 5, is provided with light on transparent sealing plate 4
Aggregator 3 is learned, 3 upper end of optical focussing device is equipped with infrared CCD sensor array 2, and optical axial is coaxial, and infrared CCD array passes
2 upper end of sensor is equipped with cover board 1；Port vertical with union 5 bottom be arranged one with 5 straight-through portion of union divide seal against each other it is close
Tube sealing, the seal pipe is interior to be equipped with infrared laser 6.
Infrared CCD sensor array 2 is using SONY (Sony) commercialization ICX655AQA- ccd image sensing in the present invention
Device.Infrared laser 6 in the present invention uses specific wavelength and the near-infrared laser through ovennodulation, wavelength value in 850 ~ 940nM,
The laser energy field for exporting and remaining stable over, infrared laser 6 use semiconductor laser, semiconductor laser work
Principle forms two with the cleavage surface of semiconductor crystal using semiconductor substance (utilizing electronics) in energy interband transition luminescence
Parallel reflective mirror forms resonant cavity as reflecting mirror, makes light generation, feedback, generates the radiation amplification of light, exports laser, should
Its output power of laser is 10mW.
The laser energy that infrared laser 6 issues acts in the mulling liquid of pressure break, and the sand body in mulling liquid is by this
The energy excitation of laser generates strong reflection, is given and is collected by the reflected light that optical focussing device 3 is scattered, enhancing reflection
The signal-to-noise ratio of optical signal；The infrared signal of convergence is converged on infrared CCD sensor array 2, is passed by infrared array CCD
Sensor 2 detects the luminous intensity that it is reflected, the sand body content in the output valve and fracturing fluid of infrared array ccd sensor 2
Proportional, i.e. sand body content is higher, and the output valve of infrared array ccd sensor 2 is bigger, by passing to infrared array CCD
Content value corresponding to the output characteristics and sand body of sensor 2 carries out quantization calibration, you can get it sand body in fracturing fluid in real time
Content value.The present invention keeps measurement result more reliable and stablizes, and the present invention can eliminate radioactive source risk existing for construction site.
Heretofore described transparent sealing plate 4 is sealed in the vertical end of threeway, the top of transparent sealing plate 4 and union 5
Isolation；Cover board 1 can compress the device being mounted in union 5, and give sealing.Seal pipe is connect with threeway air-tightness, sealing
Tube top portion uses sapphire material, and the sapphire material and sapphire material at the top of seal pipe carry out air-tightness connection, guarantees red
The infrared transmission that outer laser 6 issues is gone out.The present invention realizes the accurate survey of mulling concentration using infrared laser principle of reflection
Security risk existing for radioactive source and control problem when measuring, while pressure break field operation can also be eliminated.
Embodiment 2:
On the basis of embodiment 1, in the present embodiment, the optical focussing device 3 by optical male microscope group at.Optical focussing device
3 be a K9 plano-convex spherical lens, material: H-K9L, through wavelength: 850 ~ 940nm, effective aperture: > 90%, plating multilayer is anti-reflection
Film.Infrared CCD sensor array 2 is commercialized ICX655AQA- ccd image sensor using SONY (Sony).
The planar section of the optical collection device convex lens closely connects with 2 optics receiving portion of infrared CCD sensor array
It connects.
The cover board 1 is sealing cover.
The infrared laser 6 is externally provided with laser enclosure 7.
The transparent sealing plate 4 is sapphire glass, with a thickness of 3-5mm.
Threeway of the both ends with 5 three-port structure of union is made of nylon PA66 material.
The present invention is fabricated to threeway using nylon PA66 material, is sequentially installed with from top to bottom in threeway vertical end bottom
Bright sealing plate 4, optical focussing device 3, infrared CCD detector array 2 and cover board 1；At threeway bottom is perpendicular to transparent sealing plate 4
One seal pipe is set, and the top of the seal pipe is with to install infrared laser 6 in transparent material, pipe.It is saturating at the top of seal pipe
Bright material is sapphire material；Transparent sealing plate 4 is sapphire glass, thickness 3-5mm.
The transparent sealing plate 4(thickness 3-5mm) be sealed in the vertical end of threeway, the top of transparent sealing plate 4 with by
Nonyl 5 is isolated；The optical focussing device 3 be optical focussing device, optical focussing device by optical male microscope group at；Infrared CCD array is visited
2 optics receiving portion of device is surveyed closely to connect with the planar section of optical collection device convex lens；Cover board 1 can will be mounted in union 5
Device compresses, and gives sealing.
The seal pipe is connect with threeway air-tightness, and sapphire material is used at the top of seal pipe, and the indigo plant at the top of seal pipe is precious
Stone material and sapphire material carry out air-tightness connection, and the infrared transmission for guaranteeing that infrared laser 6 issues is gone out.
The present invention realizes the precise measurement of mulling concentration using infrared laser principle of reflection, while can also eliminate pressure break scene
Security risk existing for radioactive source and control problem when operation.
Embodiment 3:
A kind of optics on-radiation mulling concentration measuring method is provided on the basis of Examples 1 and 2, in the present embodiment, is had
Body step are as follows: the straight-through both ends installation activity with union 5 is tightly connected fastener first, front end and fracturing blender truck discharge are responsible for
The connection of remittance sand pump end, rear end are responsible for remittance outlet side with discharge and are connect；Then the laser energy that infrared laser 6 issues acts on pressure
In the mulling liquid split, the sand body in mulling liquid is generated strong reflection by the energy excitation of the laser, passes through optical collection
The reflected light that device 3 is scattered, which is given, to be collected, and the signal-to-noise ratio of reflected light signal is enhanced；The infrared signal of convergence is converged to red
On outer ccd array sensor 2, the luminous intensity that it is reflected is detected by infrared array ccd sensor 2, infrared array CCD
Sand body content in the output valve and fracturing fluid of sensor 2 is proportional, i.e. sand body content is higher, infrared array CCD sensing
The output valve of device 2 is bigger, finally, by content value corresponding to output characteristics to infrared array ccd sensor 2 and sand body into
Row quantization calibration, you can get it in real time in fracturing fluid sand body content value.
Infrared laser 6 in the present invention uses specific wavelength and the near-infrared laser through ovennodulation, wavelength value 850 ~
940nM, the laser energy field for exporting and remaining stable over, its output power of the laser are 10mW.The energy of the laser is made
When on the sand body in fracturing fluid, sand body surface is generated reflected light by the excitation of laser energy, is passed using infrared array CCD
Sensor 2 detects the luminous intensity that it is reflected, the sand body content in the output valve and fracturing fluid of infrared array ccd sensor 2
Proportional, i.e. sand body content is higher, and the output valve of infrared array ccd sensor 2 is bigger, by passing to infrared array CCD
Content value corresponding to the output characteristics and sand body of sensor 2 carries out quantization calibration, you can get it sand body in fracturing fluid in real time
Content value.The invention keeps measurement result more reliable and stablizes, which can eliminate radioactive source risk existing for construction site.This
Radiation when inventing the precise measurement for realizing mulling concentration using infrared laser principle of reflection, while pressure break field operation can also be eliminated
Property source existing for security risk and control problem.
The foregoing examples are only illustrative of the present invention, does not constitute the limitation to protection scope of the present invention, all
It is within being all belonged to the scope of protection of the present invention with the same or similar design of the present invention.The dress that the present embodiment does not describe in detail
Well-known components and common structure or conventional means that component and its systems approach belong to the industry are set, are not described one by one here.
Claims (8)
1. a kind of optics on-radiation mulling apparatus for measuring concentration, it is characterised in that: including both ends band union (5) threeway knot
Structure, the straight-through both ends with union (5) are equipped with movable sealing connection fastener, and front end and fracturing blender truck discharge supervisor's remittance sand pump end connect
It connects, rear end is responsible for remittance outlet side with discharge and is connect；In the vertical port bottom of union (5), one transparent sealing plate (4) is set, it is transparent
It is provided on sealing plate (4) optical focussing device (3), optical focussing device (3) upper end is equipped with infrared CCD sensor array (2), light
Axis coaxle is learned, infrared CCD sensor array (2) upper end is equipped with cover board (1)；It is arranged in the bottom of port vertical with union (5)
One seal pipe sealed against each other with union (5) straight-through portion point, the seal pipe is interior to be equipped with infrared laser (6).
2. a kind of optics on-radiation mulling apparatus for measuring concentration according to claim 1, it is characterised in that: the light
Learn aggregator (3) by optical male microscope group at.
3. a kind of optics on-radiation mulling apparatus for measuring concentration according to claim 2, it is characterised in that: the light
The planar section for learning manifold convex lens is closely connect with infrared CCD sensor array (2) optics receiving portion.
4. a kind of optics on-radiation mulling apparatus for measuring concentration according to claim 1, it is characterised in that: the lid
Plate (1) is sealing cover.
5. a kind of optics on-radiation mulling apparatus for measuring concentration according to claim 1, it is characterised in that: described is red
Outer laser (6) is externally provided with laser enclosure (7).
6. a kind of optics on-radiation mulling apparatus for measuring concentration according to claim 1, it is characterised in that: described is saturating
Bright sealing plate (4) is sapphire glass, with a thickness of 3-5mm.
7. a kind of optics on-radiation mulling apparatus for measuring concentration according to claim 1, it is characterised in that: described two
Threeway of the end with union (5) three-port structure is made of nylon PA66 material.
8. any one optics on-radiation mulling concentration measuring method described in -7 according to claim 1, it is characterised in that: tool
Body step are as follows: the straight-through both ends installation activity with union 5 is tightly connected fastener first, front end and fracturing blender truck discharge are responsible for
The connection of remittance sand pump end, rear end are responsible for remittance outlet side with discharge and are connect；Then the laser energy that infrared laser (6) issues acts on
In the mulling liquid of pressure break, the sand body in mulling liquid is generated strong reflection by the energy excitation of the laser, is converged by optics
The reflected light that poly- device (3) is scattered, which is given, to be collected, and the signal-to-noise ratio of reflected light signal is enhanced；The infrared signal of convergence is converged
To on infrared CCD sensor array (2), the luminous intensity that it is reflected is detected by infrared array ccd sensor (2), it is red
Sand body content in the output valve and fracturing fluid of outer array CCD sensor (2) is proportional, i.e. sand body content is higher, infrared
The output valve of array CCD sensor (2) is bigger, finally, passing through output characteristics and sand body to infrared array ccd sensor (2)
Corresponding content value carries out quantization calibration, you can get it in real time in fracturing fluid sand body content value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910085749.3A CN109781667A (en) | 2019-01-29 | 2019-01-29 | Optical nonradioactive sand mulling concentration measuring device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910085749.3A CN109781667A (en) | 2019-01-29 | 2019-01-29 | Optical nonradioactive sand mulling concentration measuring device and method |
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| Publication Number | Publication Date |
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| CN109781667A true CN109781667A (en) | 2019-05-21 |
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| CN201910085749.3A Pending CN109781667A (en) | 2019-01-29 | 2019-01-29 | Optical nonradioactive sand mulling concentration measuring device and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113588573A (en) * | 2021-07-12 | 2021-11-02 | 中交第二航务工程局有限公司 | Real-time dynamic monitoring device and monitoring method for soil sampling sand content of underwater open caisson |
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2019
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| CN113588573A (en) * | 2021-07-12 | 2021-11-02 | 中交第二航务工程局有限公司 | Real-time dynamic monitoring device and monitoring method for soil sampling sand content of underwater open caisson |
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Effective date of registration: 20201030 Address after: 100007 Dongcheng District, Dongzhimen, China, North Street, No. 9 Oil Mansion, No. Applicant after: CHINA NATIONAL PETROLEUM Corp. Applicant after: CNPC CHUANQING DRILLING ENGINEERING Co.,Ltd. Address before: 610056 6 Chenghua District chase street, Chengdu, Sichuan Applicant before: CNPC CHUANQING DRILLING ENGINEERING Co.,Ltd. Applicant before: CHINA NATIONAL PETROLEUM CORPORATION CHUANQING DRILLING ENGINEERING COMPANY LIMITED CHANGQING DOWNHOLE TECHNOLOGY Co. |