CN202903679U - Detection device for hydrocarbon content of drilling fluid - Google Patents
Detection device for hydrocarbon content of drilling fluid Download PDFInfo
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- CN202903679U CN202903679U CN 201220634599 CN201220634599U CN202903679U CN 202903679 U CN202903679 U CN 202903679U CN 201220634599 CN201220634599 CN 201220634599 CN 201220634599 U CN201220634599 U CN 201220634599U CN 202903679 U CN202903679 U CN 202903679U
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- detection
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- 238000001514 detection method Methods 0.000 title claims abstract description 82
- 238000005553 drilling Methods 0.000 title claims abstract description 69
- 239000012530 fluid Substances 0.000 title claims abstract description 62
- 229930195733 hydrocarbon Natural products 0.000 title claims abstract description 31
- 150000002430 hydrocarbons Chemical class 0.000 title claims abstract description 31
- 239000004215 Carbon black (E152) Substances 0.000 title claims abstract description 29
- 239000013307 optical fiber Substances 0.000 claims abstract description 76
- 238000001069 Raman spectroscopy Methods 0.000 claims abstract description 39
- 239000000523 sample Substances 0.000 claims abstract description 37
- 230000001681 protective effect Effects 0.000 claims abstract description 15
- 230000005284 excitation Effects 0.000 claims abstract description 13
- 239000000126 substance Substances 0.000 claims abstract description 9
- 238000012545 processing Methods 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims abstract description 6
- 230000008569 process Effects 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 22
- 230000003287 optical effect Effects 0.000 claims description 19
- 239000002184 metal Substances 0.000 claims description 18
- 239000003292 glue Substances 0.000 claims description 13
- 230000007704 transition Effects 0.000 claims description 13
- 239000000835 fiber Substances 0.000 claims description 12
- 238000012360 testing method Methods 0.000 claims description 12
- 238000004458 analytical method Methods 0.000 claims description 7
- 229910052594 sapphire Inorganic materials 0.000 claims description 7
- 239000010980 sapphire Substances 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 230000007797 corrosion Effects 0.000 claims description 4
- 238000005260 corrosion Methods 0.000 claims description 4
- 230000003321 amplification Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 3
- 230000002457 bidirectional effect Effects 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000004026 adhesive bonding Methods 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 6
- 238000004880 explosion Methods 0.000 abstract 2
- 150000001335 aliphatic alkanes Chemical class 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000012188 paraffin wax Substances 0.000 description 2
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- 239000010935 stainless steel Substances 0.000 description 1
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Abstract
The utility model discloses a detection device for hydrocarbon content of drilling fluid, belonging to the field of oil drilling. The detection device comprises a control box, an optical fiber, an optical fiber protective pipe and a detection probe; excitation light in the control box is transferred into the detection probe which is arranged in drilling fluid through the optical fiber, after the excitation light is focused and reflected, the characteristic Raman scattering signal of the hydrocarbon substance in the drilling fluid is detected in real time, and the Raman scattering signal of the hydrocarbon substance is transferred to the control box through the optical fiber to perform analyzing and processing; and the optical fiber protective pipe can be used for protecting the optical fiber against damaging in the use process in the oil drilling site. The detection device provided by the utility model meets the explosion proof requirement, can be used in dangerous areas of oil drilling, can acquire the Raman scattering signal of the hydrocarbon content in the drilling fluid real time, and has the advantages that the installation is fast and convenient, the options of the installation position are various, waterproof and explosion proof performances are realized and the like.
Description
Technical Field
The utility model relates to a device for detecting total hydrocarbon especially relates to a detection device of drilling fluid hydrocarbons material, belongs to the engineering technology in oil drilling field.
Background
In the process of oil exploration, it is very important to qualitatively and quantitatively detect oil-containing substances such as alkanes carried in upward-returning drilling fluid quickly, efficiently and simply and conveniently, because the method is a way of directly finding oil-gas reservoirs. At present, the detection of oil-containing substances such as alkane carried in the upward-flowing drilling fluid is mainly completed by a gas detection technology by utilizing a gas chromatograph and matching with a corresponding air compressor, a gas-carrying generator, a sample preprocessor and a sample drying system. The main technical defects of the gas detection technology are as follows: the gas circuit is complex and easy to break down, and the maintenance is very difficult; the number of auxiliary devices is large, resulting in too much dead volume of gas and too long an analysis period of the system, which is correspondingly too slow.
Therefore, according to the existing application technical situation, a device which can quickly, efficiently, simply and conveniently detect oil-containing substances such as alkane carried in the upward-returning drilling fluid is urgently needed, and the drilling fluid total hydrocarbon detection device based on the Raman effect can meet the requirements, and is simple to operate, convenient to disassemble, convenient to debug, safe and reliable.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a drilling fluid hydrocarbon content detection device can be high efficiency, and the oily material such as alkane that simply portably carried in the upward-returning drilling fluid carries on qualitative, quantitative detection.
In order to achieve the above object, the present invention provides a drilling fluid hydrocarbon content detecting device, comprising: the device comprises a control box, an optical fiber protection tube and a detection probe; wherein,
the control box is arranged near the outlet drilling fluid of the drilling site;
the optical fiber is led out from the inside of the control box, is connected to the inside of the detection probe and is used for carrying out bidirectional transmission on optical signals;
the optical fiber protection tube is respectively connected with the control box and the detection probe, so that the optical fiber passes through the optical fiber protection tube to protect the optical fiber from being damaged in the transportation and use processes;
the detection probe is placed in outlet drilling fluid, detects characteristic Raman scattering signals of hydrocarbon substances in the drilling fluid in real time, and returns the signals to the control box through the optical fiber for analysis and processing.
The optical fibers comprise a transmitting optical fiber and a receiving optical fiber;
the control box which meets the explosion-proof requirement is internally provided with a control circuit which at least comprises an excitation light source connected with an emission optical fiber signal, a Raman scattering detection module connected with a receiving optical fiber signal and an AD amplifying circuit.
The detection probe which meets the explosion-proof requirement comprises an outer cover which is placed in outlet drilling fluid, and a Raman detection light path and a detection window which are placed in the outer cover;
the Raman detection light path comprises: the Raman detection device comprises a light source condenser lens, a dichroic filter module, a diameter corner angle module and one or more filters for improving the signal-to-noise ratio of Raman detection;
an excitation light source in the control box is emitted to the light source condensing lens through an emission optical fiber, is condensed to the dichroic filter module, and then is reflected to outlet drilling fluid through the detection window;
and then, through a detection window, a characteristic Raman scattering signal generated by Raman effect excitation in the drilling fluid passes through the dichroic filter module and then is scattered onto the diameter corner module, then is reflected through the filter, and finally is transmitted into the control box through a receiving optical fiber for signal analysis and processing.
The detection probe also comprises an installation block, an optical fiber flange and a positioning flange; wherein,
the installation block is provided with an upper layer for fixing the light source condensing lens and the optical filter respectively, and a lower layer for fixing the dichroic optical filter module and the diameter corner module respectively, and a channel capable of transmitting optical signals is arranged between the upper layer and the lower layer;
connecting the emission optical fiber above the light source condensing lens by using an optical fiber flange; the dichroic filter module is further formed by sealing a dichroic filter and a dichroic filter adjusting block through glue, and the dichroic filter is positioned below the light source condensing lens;
connecting the receiving optical fiber to a positioning flange above the optical filter by using another optical fiber flange; the right-angle prism module is further formed by sealing a right-angle prism and a right-angle prism adjusting block through glue, and the right-angle prism is positioned below the optical filter.
The dichroic filter module and the right-angle edge module are respectively fixed in the mounting block through a plurality of tensioning screws and a plurality of ejection screws;
and fine adjustment of the angle of the dichroic filter or the right-angle prism within the mounting block is achieved by adjusting the distance that each of these modules is tightened down by a tightening screw, or by adjusting the distance that each of these modules is pushed up by a push-out screw.
Preferably, the dichroic filter or the right-angle prism can be adjusted to a maximum angle of 45 ° within the mounting block.
The outer cover is a sealing structure formed by connecting a cover plate and a shell; a sealing ring is arranged between the contact surfaces of the shell and the cover plate; the cover plate and the housing are made of corrosion resistant materials.
The detection window is a sapphire ball lens with a part protruding out of the surface of the outer cover.
One end of the optical fiber protection tube is connected to one explosion-proof connector of the control box through a transition connector, and the other end of the optical fiber protection tube is directly connected to the outer cover of the detection probe;
and sealing rings are respectively arranged on the surfaces of the outer cover and the transition joint, which are respectively contacted with the optical fiber protection tube, so as to realize sealing.
The optical fiber is arranged in a metal protective sleeve in a penetrating mode, and the optical fiber is sealed in a glue mode through pouring of a sealing glue; an explosion-proof rubber ring is sleeved outside the metal protective sleeve;
the explosion-proof rubber ring and the metal protective sleeve are inserted into the through hole of the explosion-proof joint together, so that the optical fiber further penetrates into the control box;
one end of the explosion-proof rubber ring, which is close to the control box, is limited by a step arranged in a through hole of the explosion-proof joint; one end of the explosion-proof rubber ring, which is far away from the control box, is compressed by a transition joint inserted into the explosion-proof joint; the transition joint is further sleeved on the metal protective sleeve for fixing.
Drilling fluid total hydrocarbon detection device, following beneficial effect has.
1. The device of the utility model has simple structure, the main structure comprises a control box, an optical fiber protection tube and a detection probe, and the device does not have auxiliary devices such as an air compressor, a gas-carrying generator, a sample preprocessor, sample drying and the like which are configured in the gas chromatograph in the prior art; meanwhile, corresponding faults and dead volumes of gas path elements such as corresponding gas resistance and pressure stabilizing valves are avoided, so that the whole device can stably, reliably, quickly and efficiently detect the total hydrocarbon content in the drilling fluid.
2. The detection probe needs to be placed in drilling fluid, and the drilling fluid on site contains some combustible gas, so any fire source is forbidden. The utility model discloses an inside raman that is of test probe detects the light path, does not have any electrical components, accords with explosion-proof requirement completely.
3. The utility model discloses a control box places in the drilling fluid annex, and all electrical apparatus controls all inside the control box, and the control box of itself accords with the flame proof requirement, can not produce any electric spark in the outside of control box, guarantees on-the-spot safety.
4. The utility model discloses an optical fiber protection tube can protect optic fibre not damaged in transportation and use.
5. The utility model discloses an inside glue when two optic fibre pass metal protective sheath and seal, then wholly pass the flame proof and connect the explosion-proof control box that gets into, compress tightly the explosion-proof that two optic fibre were realized to the flame proof rubber circle by transition joint again.
6. The utility model discloses an outer cover and optical fiber protection tube can not be permeated by drilling fluid and corruption when making optic fibre and Raman detection circuitry use in the drilling fluid.
7. The utility model discloses a dichroic filter module and right angle prism module in the raman detection light path can all carry out 45 degrees angles and finely tune for the light path of transmission and acceptance is more accurate, improves and detects the precision.
8. The utility model discloses a detection window is protrusion in the sapphire ball lens on shell surface, is applicable to abominable operating mode such as drilling fluid to can prevent that the drilling fluid from piling up in test probe department and blockking up detection window.
9. The utility model discloses installation convenient to use as long as place the control box near export drilling fluid, can carry out total hydrocarbon ration, qualitative detection with test probe directly put into the drilling fluid.
Drawings
FIG. 1 is a schematic structural diagram of a device for detecting hydrocarbon content in drilling fluid according to the present invention;
FIG. 2 is a schematic cross-sectional view of a detection probe according to the present invention;
FIG. 3 is a schematic partial cross-sectional view of an explosion-proof configuration of the optical fiber at A of FIG. 1;
fig. 4 is a schematic diagram of fine angle adjustment of the B-direction right-angle prism and the dichroic filter in fig. 2.
Detailed Description
The preferred embodiment of the present invention will be described in detail below with reference to fig. 1 to 4.
As shown in fig. 1, the device for detecting hydrocarbon content in drilling fluid provided by the present invention comprises a control box 1, an optical fiber 2, an optical fiber protection tube 3 and a detection probe 4; wherein the control box 1 is arranged near the outlet drilling fluid; the optical fiber 2 is used for transmitting optical signals in the control box 1 and the detection probe 4; the optical fiber protection tube 3 is connected with the control box 1 and the detection probe 4, and is also sleeved outside the optical fiber 2 to protect the optical fiber 2 from being damaged in the transportation and use processes, and the detection probe 4 is placed inside the outlet drilling fluid and used for exciting and receiving Raman scattering signals of total hydrocarbons in the drilling fluid. The control box 1, the detection probe 4 and the like meet the explosion-proof requirement.
As shown in fig. 2, the detection probe 4 includes a housing, a raman detection optical path, and a detection window. The outer cover is provided with a sealing ring 6, a cover plate 7 and a shell 8, the cover plate 7 and the shell 8 are made of corrosion-resistant materials such as stainless steel and have the characteristic of resisting the corrosion of drilling fluid. Wherein one side of the housing 8 is provided with an opening for placing a raman detection optical path and a detection window therein. After the opening is covered by the cover plate 7, the cover plate 7 and the shell 8 are fixedly connected through screws to form a sealed integral structure, and then the sealed integral structure is placed into outlet drilling fluid.
Further, as shown in fig. 2, the raman detection optical path includes: a light source condenser lens 13, a dichroic filter module, a right-angle prism module, and one or more filters 12 for improving the signal-to-noise ratio of the raman detection. The Raman detection optical path is fixedly installed in the detection probe and is realized by an installation block 22, an optical fiber flange 10, a positioning flange 11 and the like.
The mounting block 22 is roughly divided into upper and lower layers. A fiber flange 10 is screwed to the top of the mounting block 22 for connection to a launch fiber 91 leading from within the control box 1. The light source condensing lens 13 is disposed on an upper layer inside the mounting block 22 and fixed with glue such that the light source condensing lens 13 is positioned below the exposed end of the emission optical fiber 91. And a channel for transmitting optical signals is formed between the upper layer and the lower layer.
The dichroic filter module is composed of a dichroic filter 15 and a dichroic filter adjusting block 19 through glue sealing, and is fixedly arranged at the lower layer in the mounting block 22 and below the light source condenser lens 13. The emission light path is formed, that is, the excitation light source inside the control box 1 passes through the emission optical fiber 91, the light source condenser lens 13, the dichroic filter 15, and the detection window to reflect the light to the outlet drilling fluid.
The other fiber flange 10 is mounted on a positioning flange 11 and is screwed together to the top of the mounting block 22, and the receiving fiber 92 leading from the inside of the control box 1 is connected to this fiber flange 10. The filter 12 is placed directly into the upper layer of the mounting block 22 and below the exposed end of the receiving fiber 92.
The right-angle prism module is formed by a right-angle prism 14 and a right-angle prism adjusting block 20 through glue sealing, and is fixedly arranged on the lower layer in the mounting block 22 and positioned below the optical filter 12. To this end, the receiving optical path is configured, that is, the characteristic raman scattering signal generated by the raman effect excitation from the drilling fluid is scattered to pass through the detection window, the dichroic filter 15 to the right-angle prism 14, and then is emitted to pass through the filter 12, and is transmitted to the control box 1 through the receiving optical fiber 92 for the analysis and processing of the signal.
The detection window is a sapphire ball lens 17 with a part protruding out of the surface of the shell 8, the sapphire ball lens 17 is clamped by screws at openings correspondingly arranged on the shell 8 and the mounting block 22, so that the sapphire ball lens 17 is approximately positioned between the upper layer and the lower layer of the shell 8, and a channel for characteristic Raman scattering signal transmission is formed by the sapphire ball lens 17, the dichroic filter 15 and the right-angle prism 14. Sealing is achieved by two sealing rings 16 and 18 respectively provided at the upper openings of the housing 8 and the mounting block 22 to isolate the interior of the test probe from the drilling fluid.
Referring to fig. 2 and 4, the dichroic filter module is arranged in the mounting block 22 by two tension screws 33 and 35 and two ejection screws 34 and 36, and fine adjustment of the 45-degree angle of the module can be realized. Wherein the dichroic filter module can be pulled down by adjusting the tensioning screws 33, 35; and the dichroic filter module can be lifted up by adjusting the ejector screws 34, 36. That is, these screws act on the dichroic filter 15 to achieve its angular adjustment by slightly deforming the dichroic filter adjustment block 19 in the module.
The rectangular module is fixed in the mounting block 22 by means of two further tensioning screws 30, 32 and two ejector screws 29, 31. Similarly to the above, fine adjustment of the 45-degree angle of the rectangular prism module can be achieved by adjusting the tightening distance of the tightening screws 30, 32 or the pushing distance of the pushing screws 29, 31.
Referring to fig. 2 and fig. 3, one end of the optical fiber protection tube 3 is connected to the shell 8 of the detection probe, and the other end is connected to the flameproof connector 23 of the control box 1 through a transition connector 27. Sealing rings 5 and 28 are respectively arranged on the corresponding surfaces of the shell 8 and the transition joint 27, which are in contact with the optical fiber protection tube 3, to realize sealing.
As shown in fig. 3, when the transmitting optical fiber 91 and the receiving optical fiber 92 pass through the metal protection sleeve 25, the inner part of the metal protection sleeve 25 is sealed with glue (the label 26 indicates that the metal protection sleeve 25 is filled with the glue), then the metal protection sleeve 25 is externally provided with the explosion-proof rubber ring 24, and the whole metal protection sleeve is inserted into the through hole in the explosion-proof joint 23, so that the two optical fibers 2 further penetrate into the control box 1. The step is arranged on the inner side of the through hole of the explosion-proof connector 23, namely the diameter of one end, close to the control box 1, in the through hole is smaller, the diameter of one end, far away from the control box 1, is larger, and the step is used for limiting the position of the explosion-proof rubber ring 24 in the through hole, at the moment, because the length of the metal protective sleeve 25 is larger than that of the explosion-proof rubber ring 24, the front end of the metal protective sleeve 25 exceeds the part of the explosion-proof rubber ring 24, and the metal protective sleeve can be further inserted. Then, the transition joint 27 is inserted into the through hole from the end with the larger diameter, and the part which is sleeved on the rear end of the metal protective sleeve 25 and exceeds the through hole is fixedly connected, and meanwhile, the transition joint 27 compresses the explosion-proof rubber ring 24 to realize the explosion-proof of the two optical fibers 2.
The control box 1 comprises an excitation light source, a Raman scattering detection module, an AD amplification circuit and other control circuits, the excitation light source enters the detection probe 4 through the emission optical fiber 91 and then is reflected into the drilling fluid, Raman signals scattered by paraffin and other oil-containing substances of the drilling fluid through Raman effect excitation are reflected by the detection probe 4 and transmitted to the Raman scattering detection module, the AD amplification circuit and other control circuits through the receiving optical fiber 92 for analysis and processing, and therefore the total content of the paraffin and other oil-containing substances of the drilling fluid is judged.
To sum up, the utility model discloses a drilling fluid hydrocarbon content detection device who accords with explosion-proof requirement can be used for the danger area of oil drilling, can gather the raman scattering signal of the hydrocarbon content in the drilling fluid in real time, has simple to operate swiftly, and the mounted position selectivity is many and advantages such as waterproof explosion-proof.
While the present invention has been described in detail with reference to the preferred embodiments thereof, it should be understood that the above description should not be taken as limiting the present invention. Numerous modifications and alterations to the present invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be limited only by the attached claims.
Claims (10)
1. A drilling fluid hydrocarbon content detection apparatus, comprising: the device comprises a control box (1), an optical fiber (2), an optical fiber protection tube (3) and a detection probe (4); wherein,
the control box (1) is placed near the outlet drilling fluid of a drilling site;
the optical fiber (2) is led out from the inside of the control box (1) and connected to the inside of the detection probe (4) for carrying out bidirectional transmission on optical signals;
the optical fiber protection tube (3) is respectively connected with the control box (1) and the detection probe (4), so that the optical fiber (2) passes through the optical fiber protection tube (3) to protect the optical fiber (2) from being damaged in the transportation and use processes;
the detection probe (4) is placed in outlet drilling fluid, detects characteristic Raman scattering signals of hydrocarbon substances in the drilling fluid in real time, and returns the signals to the control box (1) through the optical fiber (2) for analysis and processing.
2. The drilling fluid hydrocarbon content testing apparatus of claim 1,
the optical fiber (2) comprises a transmitting optical fiber (91) and a receiving optical fiber (92);
the control box (1) meeting the explosion-proof requirement is internally provided with a control circuit which at least comprises an excitation light source in signal connection with the emission optical fiber (91), a Raman scattering detection module in signal connection with the receiving optical fiber (92) and an AD amplification circuit.
3. The drilling fluid hydrocarbon content testing apparatus of claim 2,
the detection probe (4) meeting the explosion-proof requirement comprises an outer cover placed in outlet drilling fluid, a Raman detection light path and a detection window, wherein the Raman detection light path and the Raman detection window are placed in the outer cover;
the Raman detection light path comprises: the Raman detection device comprises a light source condenser lens (13), a dichroic filter module, a diameter corner angle module and one or more filters (12) for improving the signal-to-noise ratio of Raman detection;
an excitation light source in the control box (1) is emitted to the light source condenser lens (13) through an emission optical fiber (91), is condensed to the dichroic filter module, and then is reflected to outlet drilling fluid through the detection window;
and then, through a detection window, a characteristic Raman scattering signal generated by Raman effect excitation in the drilling fluid passes through the dichroic filter module and then is scattered onto the diameter corner module, then is reflected through the filter (12), and finally is transmitted into the control box (1) through a receiving optical fiber (92) to be subjected to signal analysis processing.
4. The drilling fluid hydrocarbon content testing apparatus of claim 3,
the detection probe (4) also comprises a mounting block (22), an optical fiber flange (10) and a positioning flange (11); wherein,
the mounting block (22) is provided with an upper layer for fixing the light source condensing lens (13) and the optical filter (12) respectively, and a lower layer for fixing the dichroic optical filter module and the diameter corner module respectively, and a channel capable of transmitting optical signals is arranged between the upper layer and the lower layer;
connecting the emission optical fiber (91) above the light source condenser lens (13) by using an optical fiber flange (10); the dichroic filter module is further formed by sealing a dichroic filter (15) and a dichroic filter adjusting block (19) through glue, and the dichroic filter (15) is positioned below the light source condensing lens (13);
-connecting the receiving fiber (92) to a positioning flange (11) above the filter (12) by means of a further fiber flange (10); the right-angle prism module is further formed by gluing and sealing a right-angle prism (14) and a right-angle prism adjusting block (20), and the right-angle prism (14) is located below the optical filter (12).
5. The drilling fluid hydrocarbon content testing apparatus of claim 4,
the dichroic filter module and the right-angle edge module are respectively fixed in the mounting block (22) through a plurality of tensioning screws and a plurality of ejection screws;
and fine adjustment of the angle of the dichroic filter (15) or the right-angle prism (14) in the mounting block (22) is achieved by adjusting the distance by which each of these modules is tightened down by a tightening screw, or by adjusting the distance by which each of these modules is pushed up by an ejector screw.
6. The drilling fluid hydrocarbon content testing apparatus of claim 5,
the dichroic filter (15) or the right-angle prism (14) can be adjusted to a maximum angle of 45 ° in the mounting block (22).
7. The drilling fluid hydrocarbon content testing apparatus of claim 3,
the outer cover is a sealing structure formed by connecting a cover plate (7) and a shell (8); a sealing ring (6) is arranged between the contact surfaces of the shell (8) and the cover plate (7); the cover plate (7) and the housing (8) are made of corrosion-resistant materials.
8. The drilling fluid hydrocarbon content testing apparatus of claim 3,
the detection window is a sapphire ball lens (17) with a part protruding out of the surface of the outer cover.
9. The drilling fluid hydrocarbon content detection apparatus of claim 1 or 7,
one end of the optical fiber protection tube (3) is connected to one explosion-proof joint (23) of the control box (1) through a transition joint (27), and the other end of the optical fiber protection tube is directly connected to the outer cover of the detection probe (4);
sealing rings (5, 28) are respectively arranged on the surfaces of the outer cover and the transition joint (27) which are respectively contacted with the optical fiber protection tube (3) to realize sealing.
10. The drilling fluid hydrocarbon content testing apparatus of claim 9,
the optical fiber (2) is arranged in a metal protective sleeve (25) in a penetrating mode, and glue sealing is carried out through pouring a sealing glue (26); an explosion-proof rubber ring (24) is sleeved outside the metal protective sleeve (25);
the flameproof rubber ring (24) and the metal protective sleeve (25) are inserted into the through hole of the flameproof joint (23) together, so that the optical fiber (2) further penetrates into the control box (1);
one end of the explosion-proof rubber ring (24) close to the control box (1) is limited by a step arranged in a through hole of the explosion-proof joint (23); one end of the explosion-proof rubber ring (24) far away from the control box (1) is compressed by a transition joint (27) inserted into the explosion-proof joint (23); the transition joint (27) is further sleeved on the metal protective sleeve (25) for fixing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220634599 CN202903679U (en) | 2012-11-27 | 2012-11-27 | Detection device for hydrocarbon content of drilling fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220634599 CN202903679U (en) | 2012-11-27 | 2012-11-27 | Detection device for hydrocarbon content of drilling fluid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202903679U true CN202903679U (en) | 2013-04-24 |
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ID=48124336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220634599 Expired - Fee Related CN202903679U (en) | 2012-11-27 | 2012-11-27 | Detection device for hydrocarbon content of drilling fluid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202903679U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102928398A (en) * | 2012-11-27 | 2013-02-13 | 上海神开石油化工装备股份有限公司 | Device for detecting hydrocarbon content of drilling fluid |
| EP4016019A1 (en) * | 2020-12-18 | 2022-06-22 | Kaiser Optical Systems Inc. | Explosion-proof and flameproof enclosure for raman systems |
-
2012
- 2012-11-27 CN CN 201220634599 patent/CN202903679U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102928398A (en) * | 2012-11-27 | 2013-02-13 | 上海神开石油化工装备股份有限公司 | Device for detecting hydrocarbon content of drilling fluid |
| EP4016019A1 (en) * | 2020-12-18 | 2022-06-22 | Kaiser Optical Systems Inc. | Explosion-proof and flameproof enclosure for raman systems |
| US11852533B2 (en) | 2020-12-18 | 2023-12-26 | Endress+Hauser Optical Analysis, Inc. | Explosion-proof and flameproof enclosure for Raman systems |
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