CN209603979U - This coal seam single hole gas micrometeor system is measured based on accumulation principle - Google Patents
This coal seam single hole gas micrometeor system is measured based on accumulation principle Download PDFInfo
- Publication number
- CN209603979U CN209603979U CN201920240613.0U CN201920240613U CN209603979U CN 209603979 U CN209603979 U CN 209603979U CN 201920240613 U CN201920240613 U CN 201920240613U CN 209603979 U CN209603979 U CN 209603979U
- Authority
- CN
- China
- Prior art keywords
- hole
- control valve
- gas
- pipe
- micrometeor
- 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.)
- Active
Links
Landscapes
- Examining Or Testing Airtightness (AREA)
Abstract
This coal seam single hole gas micrometeor system is measured based on accumulation principle, including gas drainage pipe, connection hole pipe, hole sealing tube and micrometeor testing tube, this each coal seam single hole be respectively connected with one described in hole sealing tube, several sealing of hole tube side-by-sides are connected on connection hole pipe, and the outlet side of connection hole pipe is connect with the inlet end of gas drainage pipe；The master control valve of neighbouring gas drainage pipe is provided on connection hole pipe, micrometeor testing tube is arranged in parallel with master control valve, the both ends of micrometeor testing tube are connected on the connection hole pipe of master control valve inlet side and outlet side, and testing and control valve and flow sensor are provided on micrometeor testing tube.Principle of the utility model based on summation is capable of gas density, gas flow and the pure flow of gas of accurately measure one borehole, and good test effect, testing efficiency is high, can adapt to aqueous in the coal seam and interior complex conditions containing cinder that drill.
Description
Technical field
The utility model belongs to coal-bed gas flow rate test technical field, and in particular to one kind measures this based on accumulation principle
Coal seam single hole gas micrometeor system.
Background technique
Coal bed gas extraction has particularly important meaning to Safety of Coal Mine Production.The specific implementation of coal bed gas extraction
Journey is that the drilling of certain size is squeezed into coal seam, hole sealing tube insertion drilling, sealing of hole, is then connected into watt through gas drainage Zhi Ganguan
This extraction main pipe and general pipeline, come out coal bed gas extraction, to achieve the purpose that reduce coal seam gas-bearing capacity.
This coal seam one borehole gas flow (hereinafter referred to as " single hole gas flow ") include single hole gas mixed traffic and
The pure flow of single hole gas, and the pure flow of single hole gas is equal to the product of single hole gas mixed traffic and single hole gas density.Single hole
Gas flow is one of the important indicator for measuring drilling gas extracting result, and calculates the crucial ginseng of mine gas extraction amount
Number.
Single hole gas flow is generally the numerical value of a very little.Although there are a small number of accurate single hole gas flow testers
Device, but in most cases, single hole gas flow is still within the lower limit of these fine measuring instrument measurement ranges.Separately
Outside, there is water burst and cinder in down-hole coal bed drilling, cause current few instruments that can come out single-hole gas measuring, i.e.,
It is to test out, test value often differs larger with true value.If single hole gas mixed traffic can not be tested out accurately
Come, then the pure flow of single hole gas also can not just calculate.
Utility model content
The utility model provides a kind of easy to operate, test value accuracy to solve shortcoming in the prior art
High, security reliability it is strong this coal seam single hole gas micrometeor system is measured based on accumulation principle.
In order to solve the above technical problems, the utility model adopts the following technical solution: measuring this coal seam based on accumulation principle
Single hole gas micrometeor system, including gas drainage pipe, connection hole pipe, hole sealing tube and micrometeor testing tube, this each coal seam single hole
Hole sealing tube described in being respectively connected with one, several sealing of hole tube side-by-sides are connected on connection hole pipe, join outlet side and the gas of hole pipe
The inlet end of drainage tube connects；
The master control valve of neighbouring gas drainage pipe is provided on connection hole pipe, micrometeor testing tube is in parallel with master control valve to be set
It sets, the both ends of micrometeor testing tube are connected on the connection hole pipe of master control valve inlet side and outlet side, micrometeor testing tube
On be provided with testing and control valve and flow sensor.
It is provided with deslagging water discharging device on connection hole pipe, deslagging water discharging device is between master control valve and gas drainage pipe.
It is provided with single hole control valve on every hole sealing tube, the survey for testing gas density is provided on single hole control valve
Mouth is tried, test nipple external screw-thread is sealedly connected with blocking cap.
By adopting the above technical scheme, the measuring method of this coal seam single hole gas micrometeor system is measured based on accumulation principle,
The following steps are included:
(1) a single hole control valve is installed on each hole sealing tube；
(2) outer end of a horizontally-arranged six roots of sensation hole sealing tube is together in series using a connection hole pipe, as one group of measure object, six
Root hole sealing tube is successively labeled as 1#, 2#, 3#, 4#, 5# and 6#, and the outlet side of connection hole pipe is connected on gas drainage pipe；
(3) master control valve, deslagging water discharging device, connection micrometeor testing tube are installed on connection hole pipe, in micrometeor testing tube
Upper setting flow sensor and testing and control valve；
(4) master control valve and six single hole control valves are opened, testing and control valve is closed, are emptied by deslagging water discharging device each
Water and cinder in this coal seam single hole；
(5) master control valve is closed, testing and control valve is opened, backs out blocking cap, using optics gas density tester from each
The gas density that this each coal seam single hole is successively measured at test nipple on single hole control valve, is denoted as C1、C2、C3、C4、C5、C6, together
When record the registration of flow sensor, be denoted as FT；
(6) the single hole control valve on 1# hole sealing tube is closed, the single hole control on 2#, 3#, 4#, 5# and 6# hole sealing tube is opened
Valve records the registration F of flow sensorT1；
(7) the single hole control valve on 1# hole sealing tube is opened, the single hole control valve on 2# hole sealing tube is closed, record down-off passes
The registration F of sensorT2；
(8) the single hole control valve on 2# hole sealing tube is opened, the single hole control valve on 3# hole sealing tube is closed, record down-off passes
The registration F of sensorT3；
(9) the single hole control valve on 3# hole sealing tube is opened, the single hole control valve on 4# hole sealing tube is closed, record down-off passes
The registration F of sensorT4；
(10) the single hole control valve on 4# hole sealing tube is opened, the single hole control valve on 5# hole sealing tube is closed, records down-off
The registration F of sensorT5；
(11) the single hole control valve on 5# hole sealing tube is opened, the single hole control valve on 6# hole sealing tube is closed, records down-off
The registration F of sensorT6；
(12) gas flow for calculating the 1st drilling is F1=FT-FT1, the gas flow of the 2nd drilling is F2=FT-
FT2, ……, the gas flow of the 6th drilling is F6=FT-FT6；
It (13) is F according to the pure flow rate calculation formula of single hole gasic=Fi×Ci, i=1,2,3,4,5,6；It can obtain respectively in this way
The pure flow of single hole gas out.
Principle of the utility model based on summation, test thinking is first by the effective hole pipe string of the sealing of hole of multiple drillings
It is unified into one group of measure object；Then it is provided with the single hole control valve with test nipple on each hole sealing tube, it is single to play control
The effect of drilling gas flowing and measurement of concetration；A deslagging water discharging device and a flow are installed on the connection hole pipe of the group simultaneously
Sensor each serves as the effect that deslagging discharged water and measured whole group drilling gas flow；Pass through control single hole control valve later
Switch causes the variation of whole group drilling gas flow, measures single hole gas flow to calculate indirectly.
In conclusion the utility model has following technical effect that
1, the utility model is capable of gas density, gas flow and the pure flow of gas of accurately measure one borehole,
Good test effect, testing efficiency are high.
2, it is mounted with deslagging waterproof device in pipeline, eliminates the influence of water and cinder to gas flow test result, has
Adaptability very strongly can adapt to aqueous in the coal seam and interior complex conditions containing cinder that drill.
3, the number of the hole sealing tube of every group of measure object can in the light of actual conditions be adjusted, and applying has relatively by force
Flexibility.The sum of gas flow after one group of hole sealing tube is connected still less than gas flow sensor measurement lower limit when, can
Suitably increase the number of series connection hole sealing tube in this group of hole sealing tube.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment
As shown in Figure 1, the utility model measures this coal seam single hole gas micrometeor system based on accumulation principle, including watt
This drainage tube 1, connection hole pipe 2, hole sealing tube 3 and micrometeor testing tube 4, this each coal seam single hole be respectively connected with one described in sealing of hole
Pipe 3, several hole sealing tubes 3 are connected to side by side on connection hole pipe 2, and the inlet end of the outlet side and gas drainage pipe 1 that join hole pipe 2 connects
It connects；
The master control valve 5 of neighbouring gas drainage pipe 1 is provided on connection hole pipe 2, micrometeor testing tube 4 and master control valve 5 are simultaneously
Connection setting, the both ends of micrometeor testing tube 4 are connected on the connection hole pipe 2 of 5 inlet side of master control valve and outlet side, micrometeor
Testing and control valve 6 and flow sensor 7 are provided on testing tube 4.
It is provided with deslagging water discharging device 8 on connection hole pipe 2, deslagging water discharging device 8 is between master control valve 5 and gas drainage pipe 1.
It is provided with single hole control valve 9 on every hole sealing tube 3, is provided on single hole control valve 9 for testing gas density
Test nipple 10,10 external screw-thread of test nipple is sealedly connected with blocking cap.
The measuring method that this coal seam single hole gas micrometeor system is measured based on accumulation principle, is included the following steps,
(1) a single hole control valve 9 is installed on each hole sealing tube 3；
(2) outer end of a horizontally-arranged six roots of sensation hole sealing tube 3 is together in series using a connection hole pipe 2, as one group of measure object,
Six roots of sensation hole sealing tube 3 is successively labeled as 1#, 2#, 3#, 4#, 5# and 6#, and the outlet side of connection hole pipe 2 is connected on gas drainage pipe 1；
(3) master control valve 5, deslagging water discharging device 8, connection micrometeor testing tube 4 are installed on connection hole pipe 2, measured in miniflow
Flow sensor 7 and testing and control valve 6 are set on test tube 4；
(4) master control valve 5 and six single hole control valves 9 are opened, testing and control valve 6 is closed, is emptied by deslagging water discharging device 8
Water and cinder in this each coal seam single hole；
(5) master control valve 5 is closed, testing and control valve 6 is opened, backs out blocking cap, using optics gas density tester from every
The gas density that this each coal seam single hole is successively measured at test nipple 10 on a single hole control valve 9, is denoted as C1、C2、C3、C4、C5、
C6, while the registration of flow sensor 7 is recorded, it is denoted as FT；
(6) the single hole control valve 9 on 1# hole sealing tube 3 is closed, the single hole control on 2#, 3#, 4#, 5# and 6# hole sealing tube 3 is opened
Valve 9 processed records the registration F of flow sensor 7T1；
(7) the single hole control valve 9 on 1# hole sealing tube 3 is opened, the single hole control valve 9 on 2# hole sealing tube 3 is closed, record flows down
The registration F of quantity sensor 7T2；
(8) the single hole control valve 9 on 2# hole sealing tube 3 is opened, the single hole control valve 9 on 3# hole sealing tube 3 is closed, record flows down
The registration F of quantity sensor 7T3；
(9) the single hole control valve 9 on 3# hole sealing tube 3 is opened, the single hole control valve 9 on 4# hole sealing tube 3 is closed, record flows down
The registration F of quantity sensor 7T4；
(10) the single hole control valve 9 on 4# hole sealing tube 3 is opened, the single hole control valve 9 on 5# hole sealing tube 3 is closed, records
The registration F of flow sensor 7T5；
(11) the single hole control valve 9 on 5# hole sealing tube 3 is opened, the single hole control valve 9 on 6# hole sealing tube 3 is closed, records
The registration F of flow sensor 7T6；
(12) gas flow for calculating the 1st drilling is F1=FT-FT1, the gas flow of the 2nd drilling is F2=FT-
FT2, ……, the gas flow of the 6th drilling is F6=FT-FT6；
It (13) is F according to the pure flow rate calculation formula of single hole gasic=Fi×Ci, i=1,2,3,4,5,6；It can obtain respectively in this way
The pure flow of single hole gas out.
The present embodiment not makes any form of restriction the shape of the utility model, material, structure etc., all foundations
The technical essence of the utility model any simple modification, equivalent change and modification to the above embodiments, belong to this reality
With the protection scope of new technique scheme.
Claims (3)
1. measuring this coal seam single hole gas micrometeor system based on accumulation principle, it is characterised in that: including gas drainage pipe, connection hole
Pipe, hole sealing tube and micrometeor testing tube, this each coal seam single hole be respectively connected with one described in hole sealing tube, several hole sealing tubes are simultaneously
Row is connected on connection hole pipe, and the outlet side of connection hole pipe is connect with the inlet end of gas drainage pipe；
The master control valve of neighbouring gas drainage pipe is provided on connection hole pipe, micrometeor testing tube is arranged in parallel with master control valve, micro-
The both ends of flow rate test pipe are connected on the connection hole pipe of master control valve inlet side and outlet side, are arranged on micrometeor testing tube
There are testing and control valve and flow sensor.
2. according to claim 1 measure this coal seam single hole gas micrometeor system based on accumulation principle, it is characterised in that:
It is provided with deslagging water discharging device on connection hole pipe, deslagging water discharging device is between master control valve and gas drainage pipe.
3. according to claim 1 measure this coal seam single hole gas micrometeor system based on accumulation principle, it is characterised in that:
It is provided with single hole control valve on every hole sealing tube, the test nipple for testing gas density is provided on single hole control valve, surveys
Examination mouth external screw-thread is sealedly connected with blocking cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920240613.0U CN209603979U (en) | 2019-02-26 | 2019-02-26 | This coal seam single hole gas micrometeor system is measured based on accumulation principle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920240613.0U CN209603979U (en) | 2019-02-26 | 2019-02-26 | This coal seam single hole gas micrometeor system is measured based on accumulation principle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209603979U true CN209603979U (en) | 2019-11-08 |
Family
ID=68403143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920240613.0U Active CN209603979U (en) | 2019-02-26 | 2019-02-26 | This coal seam single hole gas micrometeor system is measured based on accumulation principle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209603979U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109681187A (en) * | 2019-02-26 | 2019-04-26 | 吕梁学院 | This coal seam single hole gas micrometeor system and method is measured based on accumulation principle |
-
2019
- 2019-02-26 CN CN201920240613.0U patent/CN209603979U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109681187A (en) * | 2019-02-26 | 2019-04-26 | 吕梁学院 | This coal seam single hole gas micrometeor system and method is measured based on accumulation principle |
| CN109681187B (en) * | 2019-02-26 | 2024-05-14 | 吕梁学院 | System and method for measuring single-hole gas micro-flow of coal seam based on accumulation principle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203321939U (en) | Hydraulic cylinder internal leakage composite detection system | |
| CN106677772B (en) | A kind of simulation experiment method for coal bed gas well mining | |
| CN102607990A (en) | Whole-range automatic testing method and device for gas desorbing speed of coal sample | |
| CN104020076A (en) | Continuous gas content measuring device | |
| CN108507630A (en) | Positive displacement oil gas water three phase flow separate phase flow rate on-line measurement devices and methods therefor | |
| CN209603979U (en) | This coal seam single hole gas micrometeor system is measured based on accumulation principle | |
| CN202031570U (en) | Plugging-type pressure differential flowmeter | |
| CN109681187A (en) | This coal seam single hole gas micrometeor system and method is measured based on accumulation principle | |
| CN116735835A (en) | Compact sandstone condensate gas reservoir failure development simulation device and method | |
| CN110388965A (en) | A kind of integral type gas-liquid biphase flowmeter | |
| CN211013652U (en) | Sampling device for underground water monitoring well | |
| CN109781602B (en) | Shale core displacement gas and water simultaneous measurement metering device and method | |
| CN209115098U (en) | A kind of well-case perforating horizontal well liquid production section test device and production test integral tubular column | |
| CN110657849A (en) | Oil gas field flow metering system | |
| CN204008369U (en) | Air content continuous measuring device | |
| CN103603661B (en) | Intelligent offshore oil well sampler and sampling method | |
| CN104155207B (en) | Gas content desorption testing device | |
| CN203321509U (en) | Underground storage type flow and water content monitor | |
| CN208223567U (en) | A kind of integral type gas-liquid biphase flowmeter | |
| CN1186596C (en) | Method for measuring continuous current flux of separate injection well | |
| CN107387067A (en) | Fine and close oil and gas reservoir pressure test process matching device and application method | |
| CN203374276U (en) | Eccentric integrated dedicated well-testing instrument | |
| CN107727528A (en) | The desorption of mash gas speed detecting method and device of a kind of no accumulated error | |
| CN108254034A (en) | A kind of Novel oil gas moisture phase flow rate on-line metering device and its metering method | |
| CN211174079U (en) | Gas-liquid measuring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |