CN105971589A - Coalbed methane downhole pressure detection device - Google Patents
Coalbed methane downhole pressure detection device Download PDFInfo
- Publication number
- CN105971589A CN105971589A CN201610382600.8A CN201610382600A CN105971589A CN 105971589 A CN105971589 A CN 105971589A CN 201610382600 A CN201610382600 A CN 201610382600A CN 105971589 A CN105971589 A CN 105971589A
- Authority
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- China
- Prior art keywords
- detection device
- coal bed
- bed gas
- pressure
- gas well
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 70
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title abstract 10
- 238000012545 processing Methods 0.000 claims abstract description 38
- 230000005540 biological transmission Effects 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims description 47
- 239000003245 coal Substances 0.000 claims description 36
- 210000004907 gland Anatomy 0.000 claims description 33
- 238000011897 real-time detection Methods 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 description 7
- 108010066114 cabin-2 Proteins 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000005065 mining Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 239000003034 coal gas Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- 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
- E21B47/06—Measuring temperature or pressure
Landscapes
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Geophysics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention relates to the technical field of coalbed methane equipment and discloses a coalbed methane downhole pressure detection device. The coalbed methane downhole pressure detection device comprises a base, a pressure detection mechanism, a data processing device, a shell, a seal seat, a seal pressing cover and a transmission cable. The pressure detection mechanism is connected with the base and comprises a pressure detection bin, a pressure sensor arranged in the pressure detection bin, and a first bin cover connected with the upper portion of the pressure detection bin. The data processing device is connected with the pressure detection mechanism, comprises a processing bin, a data processing circuit arranged in the processing bin, and a second bin cover connected with the upper portion of the processing bin, and is located on the upper portion of the pressure detection mechanism. Through the coalbed methane downhole pressure detection device, the problems such as poor leakproofness and inaccurate measuring results are solved, real-time detection of pressure is achieved, and the leakproofness and measuring accuracy are improved.
Description
Technical field
The present invention relates to coal bed gas equipment technical field, particularly to a kind of coal bed gas well downforce detection
Device.
Background technology
The exploration and development flow process of coal bed gas mainly includes drilling well, completion and mining stage, and mining is coal
The important step of layer gas exploitation, the down-hole pressure data during coal bed gas extraction are most important, and it is
Judge mining accident and formulate the important parameter of rational mining technique.
In the production of coal bed gas, general by coal seam drilling, setting of casing, then pressure is installed
Down-hole pressure measured by table.
Present inventor, during realizing the embodiment of the present application technical scheme, at least finds existing
Technology exists following technical problem:
Existing detection device, it is impossible to ensure sealing, so that measurement result is inaccurate, and
The mode of boring can only achieve a certain degree of depth, it is impossible to ensures the pressure of gas in the coal seam bigger to the degree of depth
Measurement, additionally, manometric data need tester to read, and manual record, it is impossible to reflection
The actual change situation of coal output layer gas so that measurement result is inaccurate.
Summary of the invention
The present invention by providing a kind of coal bed gas well downforce detection device, solve poor sealing,
The problems such as measurement result is inaccurate.
In order to solve the problems referred to above, the invention provides a kind of coal bed gas well downforce detection device, institute
State detection device to include: base, including inside and outside；Pressure detection mechanism, with described base even
Connecing, described pressure detection mechanism includes pressure detecting cabin, the pressure being arranged in described pressure detecting cabin
The first hatchcover that sensor and the top with described pressure detecting cabin are connected；Data processing equipment, with institute
State pressure detection mechanism to connect, including the data processing circuit locating stowing, be arranged in described place stowing
And the second hatchcover being connected with stowing top, described place, and described data processing equipment is positioned at described pressure
The top of testing agency；Shell, with the external connection of described base；Seal receptacle, with described shell
Top connects；Sealing gland, is connected with the top of described seal receptacle；Transmission cable, with described data
Processing means connects, and through described first hatchcover, seal receptacle, sealing gland until earth's surface；Wherein,
Described base center offers groove, is provided with rubber sheet gasket in described groove, described pressure transducer with
Described groove connects, and is compressed by described rubber sheet gasket, the bottom in described pressure detecting cabin and the described end
The inside of seat connects.
Further, described detection device also includes centering ring, described centering ring and described second hatchcover
Connect.
Further, described centering ring offering through hole, described second hatchcover is provided with screwed hole,
Screw is coordinated with described screwed hole by described through hole.
Further, the upper end of described sealing gland has shoulder hole, and described sealing gland is provided with
Female thread.
Further, described detection device also includes cable sealed joint, and described cable sealed joint leads to
Cross described female thread to be connected with described sealing gland.
Further, described cable sealed joint is provided with centre bore.
Further, described detection device also includes that pad, described pad are positioned at described shoulder hole.
Further, described detection device also includes that rubber ring, described rubber ring are positioned at described seal receptacle
In.
Further, the top in described pressure detecting cabin is connected with the lower thread of described first hatchcover.
Further, the top of described place stowing is connected with the lower thread of described second hatchcover.
Compared with prior art, the coal bed gas well downforce detection device that the present invention provides has following excellent
Point and beneficial effect:
The coal bed gas well downforce detection device of the present invention, pressure transducer is connected with described groove, and
Described rubber sheet gasket is compressed, is connected by the top of seal receptacle with described shell；Sealing gland, with
The top of described seal receptacle connects, it is ensured that the sealing of pressure-detecting device, solves prior art
The problem that middle sealing effectiveness is bad, and by pressure transducer production wells bottom pressure, pressure transducer
The pressure data collected is real-time transmitted to data processing equipment through wire, and data processing equipment will connect again
The data received are real-time transmitted to earth's surface through transmission cable after processing, thus reflect coal bed gas in real time
The situation of change of down-hole pressure, improves the accuracy of pressure detecting.
Further, centering ring is connected with described second hatchcover, it is ensured that to data processing equipment
Location, and be connected by screw, improve the reliability connected further.
Further, described detection device also includes cable sealed joint, can realize transmission cable
Sealing, described cable sealed joint is connected with described gland by described female thread, improves close further
Feng Xing.
Further, the upper end of sealing gland has shoulder hole, has pad in shoulder hole, it is ensured that
The compactness that sealing gland is connected with cable sealed joint.
Further, described rubber ring is positioned at described seal receptacle, can make sealing gland and seal receptacle
The connection on top is the tightst.
Further, the top in described pressure detecting cabin is connected with the lower thread of described first hatchcover,
The top of described place stowing is connected with the lower thread of described second hatchcover, so that pressure detecting dress
The better tightness put, and then improve the accuracy of pressure detecting.
Accompanying drawing explanation
For the technical scheme being illustrated more clearly that in the embodiment of the present application, embodiment will be described below
The accompanying drawing and the reference that use required in are briefly described, it should be apparent that, in describing below
Accompanying drawing be only embodiments herein, for those of ordinary skill in the art, do not paying
On the premise of creative work, it is also possible to obtain other accompanying drawing according to the accompanying drawing provided.
The structural front view of the coal bed gas well downforce detection device that Fig. 1 provides for the embodiment of the present invention；
The structure top view of the coal bed gas well downforce detection device that Fig. 2 provides for the embodiment of the present invention；
Description of reference numerals: 1. base 2. pressure detecting cabin 3. pressure transducer 4. first hatchcover 5.
Place's stowing 6. second hatchcover 7. shell 8. seal receptacle 9. sealing gland 10. transmits electricity
Cable 11. rubber sheet gasket 12. centering ring 13. screw 14. cable sealed joint 15. pad
16. rubber rings
Detailed description of the invention
The present invention by providing a kind of coal bed gas well downforce detection device, solve poor sealing,
The problems such as measurement result is inaccurate.
The technical scheme of the embodiment of the present application is for solving above-mentioned technical problem, and general thought is as follows: a kind of
Coal bed gas well downforce detection device, described detection device includes: base, including inside and outside；
Pressure detection mechanism, is connected with described base, and described pressure detection mechanism includes pressure detecting cabin, sets
It is placed in the pressure transducer in described pressure detecting cabin and the top with described pressure detecting cabin is connected
One hatchcover；Data processing equipment, is connected with described pressure detection mechanism, including place's stowing, is arranged at
Data processing circuit in described place stowing and the second hatchcover being connected with stowing top, described place, and institute
State data processing equipment and be positioned at the top of described pressure detection mechanism；Shell, with the outside of described base
Connect；Seal receptacle, is connected with the top of described shell；Sealing gland, with the top of described seal receptacle
Connect；Transmission cable, is connected with described data processing equipment, and through described first hatchcover, sealing
Seat, sealing gland are until earth's surface；Wherein, described base center offers groove, sets in described groove
There are rubber sheet gasket, described pressure transducer to be connected with described groove, and described rubber sheet gasket compressed,
The bottom in described pressure detecting cabin is connected with the inside of described base, generally one, described detection device
Measuring probe, can enter coal gas layer and carry out pressure detecting, and can guarantee that the sealing of measurement, thus carries
The accuracy of high measurement.
In order to be more fully understood that the technical scheme of the application, below in conjunction with Figure of description and concrete
Embodiment technique scheme is described in detail, it should be understood that the embodiment of the present invention and reality
Executing the specific features in example is the detailed description to technical scheme rather than to the application skill
The restriction of art scheme, in the case of not conflicting, the technology in the embodiment of the present application and embodiment is special
Levy and can be mutually combined.
Refer to Fig. 1 to Fig. 2, embodiments provide a kind of coal bed gas well downforce detection dress
Putting, described detection device includes:
Base 1, including inside and outside；
Pressure detection mechanism, is connected with described base 1, and described pressure detection mechanism includes pressure detecting
Cabin 2, the pressure transducer 3 being arranged in described pressure detecting cabin 2 and with described pressure detecting cabin 2
Top connect the first hatchcover 4；
Data processing equipment, is connected with described pressure detection mechanism, including place's stowing 5, is arranged at institute
State the data processing circuit in place's stowing 5 and the second hatchcover 6 being connected with stowing 5 top, described place,
And described data processing equipment is positioned at the top of described pressure detection mechanism；
Shell 7, with the external connection of described base 1；
Seal receptacle 8, is connected with the top of described shell 7；
Sealing gland 9, is connected with the top of described seal receptacle 8；
Transmission cable 10, is connected with described data processing equipment, and through described first hatchcover 4, close
Envelope seat 8, sealing gland 9 are until earth's surface；
Specifically, base 1 is single order halfpace stage structure, and each step is machined with external screw thread, the end
The center of seat 1 offers groove, and Pocket Machining has female thread, rubber sheet gasket 11 to be positioned over base 1
Groove in, pressure transducer 3 is connected with groove by screw thread and is compressed by rubber sheet gasket 11 and carries out
Sealing, the bottom in pressure detecting cabin 2 is connected by screw thread with the interior step of base 1, and leads to
Cross seal receptacle 8 to be connected with the top of described shell 7；Sealing gland 9 and the top of described seal receptacle 8
Connect, it is ensured that the sealing of pressure-detecting device, thus solve in prior art sealing effectiveness not
Good problem, and by pressure transducer 3 production wells bottom pressure, pressure transducer 3 collects
Pressure data is real-time transmitted to data processing equipment through wire, the number that data processing equipment will receive again
It is real-time transmitted to earth's surface according to after processing through transmission cable 10, thus reflects coal bed gas underground pressure in real time
The situation of change of power, improves the accuracy of pressure detecting.
As preferably, described detection device also includes centering ring 12, described centering ring 12 and described the
Two hatchcovers 6 connect, it is ensured that the location to data processing equipment.
As preferably, described centering ring 12 offering through hole, described second hatchcover 6 is provided with screw thread
Hole, more specifically, the size of described through hole is equivalently-sized with described screwed hole, and screw 13 is logical
Can screw in after crossing the through hole on centering ring 12 in the screwed hole of the second hatchcover 6, so that centering ring 12
It is connected with the second hatchcover 6.
As preferably, the upper end of described sealing gland 9 has on shoulder hole, and described sealing gland 9
It is provided with female thread, to ensure the connectivity of sealing gland 9 and miscellaneous part.
As preferably, described detection device also includes cable sealed joint 14, described cable sealed joint
14 are connected with described sealing gland 9 by described female thread, thus improve sealing.
As preferably, described cable sealed joint 14 is provided with centre bore so that described transmission cable 10
Described centre bore can be passed, and pressure data is sent to earth's surface.
As preferably, described detection device also includes that pad 15, described pad 15 are positioned at described ladder
In hole, cable sealed joint 14 can be connected with sealing gland 9 by screw thread and be compressed by pad 15
Seal, thus ensure the compactness that sealing gland 9 is connected with cable sealed joint 14.
As preferably, it is described that described detection device also includes that rubber ring 16, described rubber ring 16 are positioned at
In seal receptacle 8, more specifically, the outer round surface of centering ring 12 is close to the inwall of shell 7, in order to
Being further ensured that sealing, the embodiment of the present application can also include that the second pad, the second pad are positioned over
On the outer steps of base 1, the bottom of shell 7 can be connected with the outer steps of base 1 by screw thread
Connecing and compressed by the second pad and seal, the embodiment of the present application may also include the 3rd pad, and described the
Three pads are positioned over the top of shell 7, and the top of shell 7 is machined with female thread, and seal receptacle 8 can
It is connected with the top by screw thread with shell 7 and the 3rd pad is compressed and seal, seal receptacle 8
Being a groove structure and be machined with external screw thread, rubber ring 16 is positioned in the groove of seal receptacle 8, permissible
Make sealing gland 9 the tightst with the connection of seal receptacle 8.
Further, the top in described pressure detecting cabin 2 connects with the lower thread of described first hatchcover 4
Connecing, the top of described place stowing 5 is connected with the lower thread of described second hatchcover 6, so that pressure
The better tightness of force checking device, and then improve the accuracy of pressure detecting.
The specific works mistake of a kind of coal bed gas well downforce detection device that the present invention provide is described below
Journey, described pressure transducer 3 is for production wells bottom pressure, the pressure data warp that then will collect
Wire is real-time transmitted to locate the data processing circuit in stowing 5, the number that data processing circuit will receive
It is real-time transmitted to earth's surface according to after processing through transmission cable 10, thus realizes coal bed gas well downforce
Real-time detection.
Compared with prior art, the coal bed gas well downforce detection device that the present invention provides has following excellent
Point and beneficial effect:
The coal bed gas well downforce detection device of the present invention, pressure transducer is connected with described groove, and
Described rubber sheet gasket is compressed, is connected by the top of seal receptacle with described shell；Sealing gland, with
The top of described seal receptacle connects, it is ensured that the sealing of pressure-detecting device, solves prior art
The problem that middle sealing effectiveness is bad, and by pressure transducer production wells bottom pressure, pressure transducer
The pressure data collected is real-time transmitted to data processing equipment through wire, and data processing equipment will connect again
The data received are real-time transmitted to earth's surface through transmission cable after processing, thus reflect coal bed gas in real time
The situation of change of down-hole pressure, improves the accuracy of pressure detecting.
Further, centering ring is connected with described second hatchcover, it is ensured that to data processing equipment
Location, and be connected by screw, improve the reliability connected further.
Further, described detection device also includes cable sealed joint, can realize transmission cable
Sealing, described cable sealed joint is connected with described gland by described female thread, improves close further
Feng Xing.
Further, the upper end of sealing gland has shoulder hole, has pad in shoulder hole, it is ensured that
The compactness that sealing gland is connected with cable sealed joint.
Further, described rubber ring is positioned at described seal receptacle, can make sealing gland and seal receptacle
The connection on top is the tightst.
Further, the top in described pressure detecting cabin is connected with the lower thread of described first hatchcover,
The top of described place stowing is connected with the lower thread of described second hatchcover, so that pressure detecting dress
The better tightness put, and then improve the accuracy of pressure detecting.
Obviously, those skilled in the art the present invention can be carried out various change and modification without deviating from
The spirit and scope of the present invention.So, if these amendments of the present invention and modification belong to present invention power
Profit requires and within the scope of equivalent technologies, then the present invention is also intended to comprise these changes and modification exists
In.
Claims (10)
1. a coal bed gas well downforce detection device, it is characterised in that described detection device includes:
Base, including inside and outside；
Pressure detection mechanism, is connected with described base, described pressure detection mechanism include pressure detecting cabin,
It is arranged at the pressure transducer in described pressure detecting cabin and the top with described pressure detecting cabin is connected
First hatchcover；
Data processing equipment, is connected with described pressure detection mechanism, and described data processing equipment includes place
Stowing, the data processing circuit being arranged in described place stowing and be connected with stowing top, described place
Two hatchcovers, and described data processing equipment is positioned at the top of described pressure detection mechanism；
Shell, with the external connection of described base；
Seal receptacle, is connected with the top of described shell；
Sealing gland, is connected with the top of described seal receptacle；
Transmission cable, is connected with described data processing equipment, and through described first hatchcover, seal receptacle,
Sealing gland is until earth's surface；
Wherein, described base center offers groove, is provided with rubber sheet gasket, described pressure in described groove
Force transducer is connected with described groove, and is compressed by described rubber sheet gasket, under described pressure detecting cabin
Portion is connected with the inside of described base.
Coal bed gas well downforce the most according to claim 1 detection device, it is characterised in that institute
State detection device and also include that centering ring, described centering ring are connected with described second hatchcover.
Coal bed gas well downforce the most according to claim 2 detection device, it is characterised in that institute
Stating and offer through hole on centering ring, described second hatchcover is provided with screwed hole, and screw passes through described through hole
Coordinate with described screwed hole.
Coal bed gas well downforce the most according to claim 1 detection device, it is characterised in that institute
The upper end stating sealing gland has shoulder hole, and described sealing gland is provided with female thread.
Coal bed gas well downforce the most according to claim 4 detection device, it is characterised in that institute
Stating detection device and also include cable sealed joint, described cable sealed joint passes through described female thread and institute
State sealing gland to connect.
Coal bed gas well downforce the most according to claim 5 detection device, it is characterised in that institute
State cable sealed joint and be provided with centre bore.
Coal bed gas well downforce the most according to claim 5 detection device, it is characterised in that institute
State detection device and also include that pad, described pad are positioned at described shoulder hole.
Coal bed gas well downforce the most according to claim 1 detection device, it is characterised in that institute
State detection device and also include that rubber ring, described rubber ring are positioned at described seal receptacle.
Coal bed gas well downforce the most according to claim 1 detection device, it is characterised in that institute
The lower thread on the top and described first hatchcover of stating pressure detecting cabin is connected.
Coal bed gas well downforce the most according to claim 1 detection device, it is characterised in that
The top of described place stowing is connected with the lower thread of described second hatchcover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610382600.8A CN105971589B (en) | 2016-06-01 | 2016-06-01 | Pressure-detecting device under a kind of coal bed gas well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610382600.8A CN105971589B (en) | 2016-06-01 | 2016-06-01 | Pressure-detecting device under a kind of coal bed gas well |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105971589A true CN105971589A (en) | 2016-09-28 |
| CN105971589B CN105971589B (en) | 2019-04-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610382600.8A Expired - Fee Related CN105971589B (en) | 2016-06-01 | 2016-06-01 | Pressure-detecting device under a kind of coal bed gas well |
Country Status (1)
| Country | Link |
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Cited By (4)
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| CN108843253A (en) * | 2018-08-01 | 2018-11-20 | 西南石油大学 | A kind of compound lifting pumping unit oil pipe in underground and oil storing tube jointing |
| CN109403956A (en) * | 2018-11-07 | 2019-03-01 | 王仪腾龙 | Natural gas well down-hole pressure safety detection device based on pressure sensor |
| CN110017132A (en) * | 2019-05-24 | 2019-07-16 | 中国地质科学院地质力学研究所 | A kind of hydraulic fracturing packer and fracturing section pressure monitoring device |
| CN114215507A (en) * | 2021-05-21 | 2022-03-22 | 华北科技学院(中国煤矿安全技术培训中心) | Gas pressure measuring device and method based on directional drilling machine |
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| US20040129428A1 (en) * | 2002-12-20 | 2004-07-08 | Kelley Terry Earl | Plunger lift deliquefying system for increased recovery from oil and gas wells |
| CN201106447Y (en) * | 2007-11-15 | 2008-08-27 | 中国石油天然气股份有限公司 | Underground pressure monitoring device for coal-bed gas well |
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| US20120325456A1 (en) * | 2008-12-29 | 2012-12-27 | Hytech Energy, Llc | Tool for Use in Well Monitoring |
| CN202673280U (en) * | 2012-05-31 | 2013-01-16 | 中国石油化工股份有限公司 | CBM (Coal Bed Methane) well downhole pressure real-time monitoring system |
| CN103670377A (en) * | 2013-11-08 | 2014-03-26 | 常州凯锐自动化控制设备有限公司 | Double-sensor pressure gauge for underground coal-bed gas |
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| US20040129428A1 (en) * | 2002-12-20 | 2004-07-08 | Kelley Terry Earl | Plunger lift deliquefying system for increased recovery from oil and gas wells |
| CN201106447Y (en) * | 2007-11-15 | 2008-08-27 | 中国石油天然气股份有限公司 | Underground pressure monitoring device for coal-bed gas well |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108843253A (en) * | 2018-08-01 | 2018-11-20 | 西南石油大学 | A kind of compound lifting pumping unit oil pipe in underground and oil storing tube jointing |
| CN109403956A (en) * | 2018-11-07 | 2019-03-01 | 王仪腾龙 | Natural gas well down-hole pressure safety detection device based on pressure sensor |
| CN110017132A (en) * | 2019-05-24 | 2019-07-16 | 中国地质科学院地质力学研究所 | A kind of hydraulic fracturing packer and fracturing section pressure monitoring device |
| CN110017132B (en) * | 2019-05-24 | 2023-12-22 | 中国地质科学院地质力学研究所 | Hydraulic fracturing packer and fracturing section pressure monitoring device |
| CN114215507A (en) * | 2021-05-21 | 2022-03-22 | 华北科技学院(中国煤矿安全技术培训中心) | Gas pressure measuring device and method based on directional drilling machine |
| CN114215507B (en) * | 2021-05-21 | 2023-11-17 | 华北科技学院(中国煤矿安全技术培训中心) | Gas pressure measuring device and method based on directional drilling machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105971589B (en) | 2019-04-02 |
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