CN117760986A - Pressure-bearing optical fiber probe assembly - Google Patents
Pressure-bearing optical fiber probe assembly Download PDFInfo
- Publication number
- CN117760986A CN117760986A CN202211127798.7A CN202211127798A CN117760986A CN 117760986 A CN117760986 A CN 117760986A CN 202211127798 A CN202211127798 A CN 202211127798A CN 117760986 A CN117760986 A CN 117760986A
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- China
- Prior art keywords
- crystal
- light source
- optical fiber
- detection
- pressure
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- 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.)
- Pending
Links
- 239000013307 optical fiber Substances 0.000 title claims abstract description 40
- 239000000523 sample Substances 0.000 title claims abstract description 21
- 238000001514 detection method Methods 0.000 claims abstract description 43
- 239000012530 fluid Substances 0.000 claims abstract description 38
- 239000013078 crystal Substances 0.000 claims abstract description 36
- 239000007788 liquid Substances 0.000 claims abstract description 27
- 238000005259 measurement Methods 0.000 claims abstract description 13
- 239000000835 fiber Substances 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 5
- 239000011159 matrix material Substances 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 claims description 3
- 239000003208 petroleum Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 6
- 238000001228 spectrum Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000002329 infrared spectrum Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
Abstract
The invention relates to the technical field of petroleum exploration equipment, and particularly discloses a pressure-bearing optical fiber probe assembly, which comprises a detection device, wherein the detection device comprises a measurement module, the measurement module comprises a detection unit, a light source emission part and a light source detection part, the detection unit is provided with a detection cavity, the detection cavity is provided with an emission crystal and a receiving crystal which are parallel to each other, a fluid channel is formed between the emission crystal and the receiving crystal, two opposite ends of the fluid channel are respectively provided with a liquid inlet and a liquid outlet, an emission optical fiber is arranged between the emission crystal and the light source emission part, and a receiving optical fiber is arranged between the receiving crystal and the light source detection part. The invention enables the circuit part to be far away from the fluid channel through the transmitting optical fiber and the receiving optical fiber, thereby effectively reducing the circuit damage possibly caused by fluid leakage.
Description
Technical Field
The invention relates to the technical field of petroleum exploration equipment, in particular to a pressure-bearing optical fiber probe assembly.
Background
In the petroleum exploration and development process, the objective is to find crude oil and natural gas in the well, and how to know whether the fluid stored in the stratum is oil, gas or water, and an instrument capable of analyzing and judging the stratum fluid in real time is needed. The fluid spectrum analyzer is an instrument for solving the problem, and the fluid spectrum analyzer is used for distinguishing oil, gas and water through the absorption characteristic of the fluid to the near infrared spectrum. The spectrum probe realizes the identification of oil, gas and water, but because the spectrum probe comprises devices such as an optical window, an optical fiber, a photoelectric detector, an electronic chip and the like, the spectrum probe is placed under the well and has severe environments such as high temperature, high pressure, slurry corrosion and the like, fluid leakage is caused by fluid caused by high temperature, high pressure and the like, and the circuit part of the probe is extremely easy to damage.
Based on this, how to protect the circuit part of the probe is a technical problem that the person skilled in the art needs to solve at present.
Disclosure of Invention
The invention aims to provide a pressure-bearing optical fiber probe assembly, which effectively reduces the possible circuit damage caused by fluid leakage by enabling a circuit part to be far away from a fluid channel through a transmitting optical fiber and a receiving optical fiber.
In order to achieve the above purpose, the invention provides a pressure-bearing optical fiber probe assembly, which comprises a detection device, wherein the detection device comprises a measurement module, the measurement module comprises a detection unit, a light source emission part and a light source detection part, the detection unit is provided with a detection cavity, the detection cavity is provided with an emission crystal and a receiving crystal which are parallel to each other, a fluid channel is formed between the emission crystal and the receiving crystal, two opposite ends of the fluid channel are respectively provided with a liquid inlet and a liquid outlet, an emission optical fiber is arranged between the emission crystal and the light source emission part, and a receiving optical fiber is arranged between the receiving crystal and the light source detection part.
As a further development of the invention, the detection chamber is detachably provided with an access cover.
As a further improvement of the present invention, the light source emitting part includes a laser spot light.
As a further improvement of the present invention, the light source detecting section includes a photocoupler.
As a further development of the invention, the detection device further comprises a base module, the measuring module being arranged in a channel of the base module, the base module being used for supporting and protecting the measuring module.
As a further development of the invention, the receiving fiber and/or the transmitting fiber are provided with a fixing portion for fixing.
As a further improvement of the present invention, the fixing portion further includes a sealing portion for blocking passages at both ends of the fixing portion.
As a further improvement of the invention, the device also comprises a bearing device, wherein the bearing device is provided with a groove for accommodating the matrix module, and the measuring module is connected with a liquid inlet pipeline and a liquid outlet pipeline of the bearing device through a liquid inlet joint and a liquid outlet joint; the measuring module is connected with the electric circuit of the bearing device through an electric plug.
Compared with the prior art, when the photoelectric coupler works, fluid flows from the liquid inlet to the liquid outlet through the fluid channel under the action of external force, rays emitted by the light source emitting part are emitted by the emitting crystal through the emitting optical fiber, the receiving crystal receives the rays and then the rays are transmitted to the photoelectric coupler through the receiving optical fiber, in the process, the rays change due to the influence of the fluid in the fluid channel, the intensity and other data, and the characteristics and the content of the fluid can be analyzed by judging the change of the received light intensity and other data of the photoelectric coupler through the background, so that the detection purpose is realized. The circuit part is far away from the fluid channel through the transmitting optical fiber and the receiving optical fiber, so that the circuit damage possibly caused by fluid leakage is effectively reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a schematic diagram of the structure of the measuring module of the present invention;
FIG. 3 is a schematic cross-sectional view of the detecting device of the present invention;
FIG. 4 is a schematic top view of FIG. 3;
FIG. 5 is a schematic cross-sectional view of the detecting unit of the present invention.
In the accompanying drawings: 1 is a detection device, 101 is an electrical plug, 102 is a light source emission part, 103 is an emission optical fiber, 104 is an emission crystal, 105 is an access cover, 106 is a receiving crystal, 107 is a fixing screw, 108 is a receiving optical fiber, 109 is a light source detection part, 110 is a fixing part, 111 is a liquid inlet joint, 112 is a liquid outlet joint, and 113 is a fixing sealing part; 2 is a bearing device.
Detailed Description
The core of the invention is to provide a pressure-bearing optical fiber probe assembly, which enables a circuit part to be far away from a fluid channel through an emitting optical fiber and a receiving optical fiber, thereby effectively reducing the circuit damage possibly caused by fluid leakage.
The present invention will be described in further detail below with reference to the drawings and embodiments, so that those skilled in the art can better understand the technical solutions of the present invention.
As shown in fig. 1 to 5, a pressure-bearing optical fiber probe assembly comprises a detection device 1, wherein the detection device 1 comprises a measurement module, the measurement module comprises a detection unit, a light source emission part 102 and a light source detection part 109, the light source emission part 102 comprises a laser spot lamp, and the light source detection part 109 comprises a photoelectric coupler; the laser spotlight and the photoelectric coupler are all in the prior art, and are preferably part of the existing fluid spectrum analyzer, the laser spotlight is powered by an external power supply and emits rays, and the photoelectric coupler is used for detecting the intensity of received rays. The detection unit is provided with a detection cavity, the detection cavity is provided with a transmitting crystal 104 and a receiving crystal 106 which are parallel to each other, the transmitting crystal 104 and the receiving crystal 106 are high-purity glass used in the photoelectric field in the prior art, preferably in a flat plate shape, the shapes and the areas of the transmitting crystal 104 and the receiving crystal 106 are the same as the cross section shape and the area of the detection cavity, so that a sealed fluid channel is formed between the transmitting crystal 104 and the receiving crystal 106, two opposite ends of the fluid channel are respectively provided with a liquid inlet and a liquid outlet, a transmitting optical fiber 103 is arranged between the transmitting crystal 104 and the light source transmitting part 102, and a receiving optical fiber 108 is arranged between the receiving crystal 106 and the light source detecting part 109.
When the device works, fluid flows from the liquid inlet to the liquid outlet through the fluid channel under the action of external force, rays emitted by the light source emitting part 102 are emitted by the emitting crystal 104 through the emitting optical fiber 103, the receiving crystal receives the rays and then transmits the rays to the photoelectric coupler through the receiving optical fiber, in the process, the rays change due to the influence of the fluid in the fluid channel, the intensity and other data, the background is used for judging the change of the received rays, the characteristics and the content of the fluid can be analyzed, and the detection purpose is realized. The transmission optical fiber 103 and the receiving optical fiber 108 enable the circuit part to be far away from the fluid channel, so that circuit damage possibly caused by fluid leakage is effectively reduced.
In a specific embodiment, the detection cavity is detachably provided with an access cover 105, and the access cover 105 is fixedly arranged on the detection unit by means of a fixing screw 107; by opening the access cover 105, the fluid channel can be cleaned or the emitter crystal 104 and the receiver crystal 106 can be inspected and replaced.
In a specific embodiment, the detection device 1 further includes a base module, the measurement module is disposed in a channel of the base module, the base module is used for supporting and protecting the measurement module, and the collective module may be a housing disposed outside the measurement module and having a protection function.
In a specific embodiment, the receiving optical fiber 108 and/or the transmitting optical fiber 103 are provided with a fixing portion 110 for fixing, and the fixing portion 110 further includes a sealing portion 113 for blocking passages at both ends of the fixing portion 110. The fixing portion 110 may be U-shaped formed by bending a U-shaped bolt and a plate-shaped material, the fixing portion 110 and the nut cooperate to fix and limit the receiving optical fiber 108 and/or the transmitting optical fiber 103, the sealing portion 113 may be a sealing ring disposed on a side or an outer surface of the fixing portion 110, or may be a part of the fixing portion 110, such as the fixing portion 110 formed by using a flexible material such as rubber, and sealing is achieved while the fixing of the receiving optical fiber 108 and/or the transmitting optical fiber 103 is completed by using its own toughness, or may be a flexible material disposed on an outer layer of the fixing portion 110, so as to achieve a separation of a position of the fixing portion 110, and avoid loss of electrical elements caused by contaminants such as external drilling fluid approaching to the circuit board through a channel in which the receiving optical fiber 108 and/or the transmitting optical fiber 103 are disposed.
In a specific embodiment, the device further comprises a bearing device 2, the bearing device 2 is provided with a groove for accommodating the matrix module, and the measuring module is connected with a liquid inlet pipeline and a liquid outlet pipeline of the bearing device 2 through a liquid inlet joint 111 and a liquid outlet joint 112; the measuring module is connected to the electrical lines of the carrier device 2 via an electrical plug 101.
Finally, it is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. The utility model provides a pressure-bearing optical fiber probe assembly, its characterized in that, including detection device (1), detection device (1) includes measurement module, measurement module includes detecting element, light source emission portion (102) and light source detection portion (109), detecting element is provided with the detection chamber, the detection chamber is provided with transmission crystal (104) and receiving crystal (106) that are parallel to each other, transmission crystal (104) with form fluid passage between receiving crystal (106), fluid passage opposite both ends are provided with inlet and liquid outlet respectively, transmission crystal (104) with be provided with between light source emission portion (102) transmission optic fibre (103), be provided with between receiving crystal (106) and light source detection portion (109) and receive optic fibre (108).
2. The pressure-bearing fiber optic probe assembly of claim 1, wherein: the detection cavity is detachably provided with an access cover (105).
3. The pressure-bearing fiber optic probe assembly of claim 1, wherein: the light source emitting part (102) comprises a laser spotlight.
4. The pressure-bearing fiber optic probe assembly of claim 1, wherein: the light source detection unit (109) includes a photocoupler.
5. A pressure-bearing fiber optic probe assembly as claimed in any one of claims 1 to 4 wherein: the detection device (1) further comprises a matrix module, the measurement module is arranged in a channel of the matrix module, and the matrix module is used for supporting and protecting the measurement module.
6. The pressure-bearing fiber optic probe assembly of claim 5, wherein: the receiving fiber (108) and/or the transmitting fiber (103) is provided with a fixing portion (110) for fixing.
7. The pressure-bearing fiber optic probe assembly of claim 6, wherein: the fixing part (110) further comprises a sealing part (113) for blocking channels at two ends of the fixing part (110).
8. The pressure-bearing fiber optic probe assembly of claims 6 or 7, wherein: the measuring device comprises a base module, a measuring module, a liquid inlet connector (111) and a liquid outlet connector (112), and a bearing device (2), wherein the bearing device (2) is provided with a groove for accommodating the base module, and the measuring module is connected with a liquid inlet pipeline and a liquid outlet pipeline of the bearing device (2) through the liquid inlet connector (111) and the liquid outlet connector (112); the measuring module is connected to the electrical line of the carrier device (2) by means of an electrical plug (101).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211127798.7A CN117760986A (en) | 2022-09-16 | 2022-09-16 | Pressure-bearing optical fiber probe assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211127798.7A CN117760986A (en) | 2022-09-16 | 2022-09-16 | Pressure-bearing optical fiber probe assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117760986A true CN117760986A (en) | 2024-03-26 |
Family
ID=90322589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211127798.7A Pending CN117760986A (en) | 2022-09-16 | 2022-09-16 | Pressure-bearing optical fiber probe assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117760986A (en) |
-
2022
- 2022-09-16 CN CN202211127798.7A patent/CN117760986A/en active Pending
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