CN110219623A - A kind of branch line flow distribution device and its metering method - Google Patents
A kind of branch line flow distribution device and its metering method Download PDFInfo
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- CN110219623A CN110219623A CN201910658234.8A CN201910658234A CN110219623A CN 110219623 A CN110219623 A CN 110219623A CN 201910658234 A CN201910658234 A CN 201910658234A CN 110219623 A CN110219623 A CN 110219623A
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- pressure monitoring
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000012544 monitoring process Methods 0.000 claims abstract description 31
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 15
- 238000004364 calculation method Methods 0.000 claims description 4
- 230000008676 import Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims description 2
- 230000008859 change Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000005259 measurement Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 230000002285 radioactive effect Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001105 regulatory effect Effects 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics (AREA)
- Measuring Volume Flow (AREA)
Abstract
The present invention is a kind of branch line flow distribution device and its metering method, distributor includes upstream pressure monitoring table, downstream pressure monitoring table and metering device, upstream pressure monitoring table is mounted in main line, table is monitored equipped with flow controller and downstream pressure in branch line, metering device connects in a wherein branch line；Flow controller in branch line except the hole count of throttle orifice can it is different in addition to, other all structural parameters of throttle orifice it is all the same, downstream pressure monitoring table is mounted in branch line in the downstream line of flow controller, metering device is installed therein in the downstream line of the downstream pressure monitoring table in a branch line, and oil gas is made to flow through each flow controller with the state not less than critical flow velocity, enter back into corresponding branch line.By the quantity of throttle orifice in the flow controller installed on each branch line, the allocation proportion of flow on each branch line can be accurately obtained, the metering method of oil/gas well is significantly simplified.
Description
Technical field
The present invention relates to flows of oil well output during In Oil Field Exploration And Development etc. than distributor and metering method, especially one
Kind branch line flow distribution device and its metering method.
Background technique
High-yield well or well group are encountered in oil-gas exploration and development, in order to measure crude output in individual well or pipeline process, at present more
Mature way is that all oil gas for flowing through process are measured after separating treatment, then through metering device or instrument.It is whole
Cover separate measurement systems bulky.Not only manufacturing cost and transportation cost are high, and safety management difficulty is big.Technical comparing at present
The mature small size wide range even not device of separate measurement is to be generated by radioactive source such as r ray, is just able to achieve high yield
The metering of amount.But this metering method is because using radioactive source to increase management difficulty, there are biggish environmental protection and security risk
It is eliminated.Particularly with test and measuring of the offshore field under platform space limited environment, even more it is badly in need of wanting a kind of small in size, peace
Entirely, the extensive device or method of measures range.
In investigation and prospecting, the oil and gas production size uncertainty of prospect pit is higher, without the metering device of same range, has most
Good yield measures range.The accurate metering for realizing the prospect pit flow big to volume variance, needs the metering of mating seriation
Equipment is just able to satisfy, so again will cause measuring equipment overall utilization rate it is not high the problems such as.
The flows branch line metering oil gas water well yield such as declare application No. is 201811252478.8, be entitled in recent years
Metering method and metering device can solve the measurement problem of grease gas well, but each branch by using miniature device
Flow controller in metering pipeline is all single hole arrangements, therefore the flow of every branch road is essentially equal, when previously fabricated process
It, will also be premised on flow on each branch be equal, once the flow of branch road is beyond metering dress when bypass duct number of lines is limited
The range set, it is desired nonetheless to change the metering device of a greater amount of journeys to solve or could solve by the quantity of extension branch line
Certainly.The above problem still needs to improve, to further decrease production cost.
Summary of the invention
It is an object of the invention to provide a kind of branch line flow distribution device and its metering methods, by a main line
Interior oil and gas and water is fitted in two or two or more branch lines, and the oil gas water in each branch line can be allowed according to known
Proportionate relationship carry out assignment of traffic, simplify metering method, reduce the usage amount of metering device, further decrease production cost.
The technical scheme is that
A kind of branch line flow distribution device includes upstream pressure monitoring table, downstream pressure monitoring table and metering device, upstream
Pressure monitoring table is mounted in main line, monitors table equipped with flow controller and downstream pressure in branch line, and metering device is connected to
Wherein in a branch line；Flow controller in branch line except the hole count of throttle orifice can it is different in addition to, throttle orifice its
Its all structural parameters is all the same, and downstream pressure monitoring table is mounted in branch line in the downstream line of flow controller, metering dress
In the downstream line for setting the downstream pressure monitoring table being installed therein in a branch line, make oil gas not less than critical flow velocity
State flow through each flow controller, enter back into corresponding branch line.
The flow controller includes oil nozzle and choke block, and the hole count of throttle orifice is at least provided with one in oil nozzle and choke block, section
Other all structural parameters of discharge orifice include that the finish in aperture, hole length and hole is all the same.
The flow controller includes the flow controller one and flow controller two being mounted in branch line one and branch line two.
The downstream pressure monitoring table includes downstream pressure monitoring table one and downstream pressure monitoring table two, downstream pressure monitoring
Table one and downstream pressure monitoring table two are separately mounted in the downstream line of flow controller one and flow controller two.
It is by the flow controller of known throttle orifice hole count for a kind of metering method of branch line flow distribution device
It is mounted in each branch line, with the flow on known any one branch line or main line, or passes through metering dress
The flow measured on any one branch line or main line is set, the hole count comparing calculation with throttle orifice on flow controller obtains
Flow in main line or other branch lines.
Remarkable result of the invention is: for the present invention on every branch line, installation one has multiple throttle orifices, and each
The identical flow controller of throttle orifice inner structure size, finish, such as: oil nozzle or throttling with multiple identical structure throttle orifices
Plate etc..Under the premise of the aperture specification of throttle orifice is all identical in flow controller on ensuring each branch line, by adjusting or more
The specification for changing the oil nozzle or orifice plate on branch line in flow controller converts aperture or the hole count of throttle orifice, makes oil gas water with critical
The state of flow velocity flows through each throttle orifice of flow controller.Caused by can be to avoid factors such as shape, length because of each branch line
Flow the difference on frictional resistance, the influence to the assignment of traffic of each branch line.
The present invention can accurately obtain each branched pipe by the quantity of throttle orifice in the flow controller installed on each branch line
The allocation proportion of road flow.Therefore, if measure or known any one branch line or main line on flow, energy
Calculate the flow in main line or other branch lines.The yield meter of high yield oil gas can be realized by the metering device of small-range
Amount only just can solve the flow measurement problem of wide range of traffic variation with a set of miniature device, can be at least only with two
Branch line can be achieved with the oil and gas production metering of greater flow range.
It is measured present invention is particularly suitable for high yield well yield and in production procedure or conveying process to the meter of oil gas
Amount, also can be divided in portion and control oil gas water flow in each branch line, for the offshore oil platform oil of narrow space
The gage work of gas well, which especially has, significantly uses meaning.
The present invention significantly simplifies the metering method of oil/gas well, reduces the usage amount of metering device, significantly reduces life
Cost is produced, good economic benefit and social benefit can be generated.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
The hole count of throttle orifice is only a kind of example in flow controller in Fig. 1, and the quantity of throttle orifice can be in conjunction with the needs of throttling
Be adjusted, but must assure that each throttle orifice in the flow controller on two branch lines 1 and branch line 27 aperture,
The structural parameters in relation to throttle orifice such as length, finish are consistent.
Specific embodiment
The present invention is described in detail below in conjunction with attached drawing, is not limited the scope of the invention, it is all to be thought using design of the invention
The improvement that rood goes out belongs to protection category of the invention.
Referring to Fig. 1, a kind of branch line flow distribution device include upstream pressure monitoring table 1, downstream pressure monitoring table and
Metering device, upstream pressure monitoring table 1 are mounted in main line 2, monitor table equipped with flow controller and downstream pressure in branch line,
Metering device connects in a wherein branch line；Flow controller in branch line except throttle orifice hole count can it is different with
Outside, other all structural parameters of throttle orifice are all the same, and downstream pressure monitoring table is mounted on the downstream of flow controller in branch line
In pipeline, metering device is installed therein in the downstream line of the downstream pressure monitoring table in a branch line, make oil gas with
Each flow controller is flowed through not less than the state of critical flow velocity, is entered back into corresponding branch line.Main line 2 is input pipe
Road, branch line are output pipe.
The flow controller includes oil nozzle and choke block, and the hole count of throttle orifice is at least provided with one in oil nozzle and choke block, section
Other all structural parameters of discharge orifice include that the finish in aperture, hole length and hole is all the same.
The flow controller includes the flow controller 1 and flow controller 26 being mounted in branch line 1 and branch line 27.
The downstream pressure monitoring table includes downstream pressure monitoring table 1 and downstream pressure monitoring table 28, downstream pressure prison
Survey table 1 and downstream pressure monitoring table 28 are separately mounted in the downstream line of flow controller 1 and flow controller 26.
The import of the main line 2 is connect with oil gas supply pipeline, and the outlet of branch line is connect with oil gas export pipeline.
The branch line connecting with the main line 2 includes branch line 1 and branch line 27, and branch line is at least
Equipped with two.
It is that the flow controller of known throttle orifice hole count is installed for a kind of metering method of branch line flow distribution device
In each branch line, with the flow on known any one branch line or main line 2, or pass through metering device meter
The flow on any one branch line or main line 2 is measured, the hole count comparing calculation with throttle orifice on flow controller obtains supervisor
Flow in road 2 or other branch lines.
As shown in Figure 1, the oil gas in main line 2, respectively through the flow controller 1 and branch line two on branch line 1
After flow controller 26 on 7 throttles, it is flowed into corresponding downstream line.By under branch line 1 or branch line 27
Control valve in outbound pipeline carries out throttling or shunt regulating, observes the variation by a small margin of line pressure downstream, will not such as cause
In branch line 1 in flow controller 1 and branch line 27 upstream line, the i.e. pressure of main line 2 of flow controller 26 change
Change.At this moment the flow velocity for flowing through each throttle orifice of flow controller 26 in flow controller 1 and branch line 27 in branch line 1 reach or
More than critical flow velocity, when flow velocity is greater than or equal to critical flow velocity, pressure wave can not be propagated inversely, and downstream pressure is fluctuated to upstream
Pressure will not have an impact and in the throttle orifice in each flow controller oil gas flow velocity it is equal, flow under same apertures also phase
Deng.Therefore it flows into branch line 1 and the flow of the oil gas water in branch line 27 can be according in flow controller on each branch line
The ratio of throttle orifice hole count carries out corresponding assignment of traffic.And this relationship will not be because of the fluctuation within a narrow range or throttling of downstream pressure
The difference of 26 downstream pressure of device 1 and flow controller and change.
Working principle above writes from the occurrence of < < oil well and reservoir performance analysis [M] > >, virgin charter, Beijing petroleum
Industrial publishing house publishes, page 34, formula 3-24:
Oil nozzle seeks production formula principle:
q= C d MP t N
Wherein:
Q-oil gas flow
D-flow controller throttle orifice aperture.
PtThe upstream pressure of-flow controller.
C-throttle orifice coefficient
M, N--- are the characteristic constant under certain working condition.The upstream pressure and downstream pressure of flow controller are identical, each branch
The structural parameters of each throttle orifice are identical in flow controller on pipeline, and tri- constant values of C, M, N also can be identical.This is because reaching
When to critical state, the fluctuating change of flow controller downstream pressure will not be had an impact the upstream pressure of flow controller, each throttle orifice
Interior fluid flow is equal.
Another can foundation principle be " the oil recovery technique handbook first volume " Luo Yingjun Wan Renpu chief editor petroleum industry
Publishing house's formula (1-42) of page 28
Under critical flow criteria, crude output not after probe nozzle pressure change influence, only with the pressure before oil nozzle, oil nozzle aperture
And gas-oil ratio is related.It is counted according to mining site mining site, relational expression is represented by between them
Wherein:
q- oil mass t/d
D-flow controller throttle orifice aperture mm.
PtThe upstream pressure (oil pressure) of-flow controller, MPa.
C-oil nozzle diameter mm
For calculation formula containing well are as follows:
In formula:
Listed formula is that a large amount of statistical results in scene obtain, but also confirm simultaneously as a kind of fact, and medium is identical,
Upstream pressure is identical, at the same to meet or exceed critical flow velocity in the state of, by two or more phases in parallel
Same throttle diameter, the flow in each aperture is identical, and is not influenced this theoretical establishment by downstream pressure difference.
The identical throttle diameter of above-mentioned two or more than two parallel connections, that is, refer to the internal structure of flow controller, finish
Deng also identical.
The embodiment described above is only exemplary embodiments, but the present invention is not limited only to these embodiments, this field
Technical staff can make modification without departing from the spirit and inspiration of the present invention.There may be many for aspect disclosed herein
Change, combination and modification, and be within, therefore, protection scope is not limited only to explanation above.
Claims (7)
1. a kind of branch line flow distribution device includes upstream pressure monitoring table (1), downstream pressure monitoring table and metering device,
Upstream pressure monitoring table (1) is mounted in main line (2), monitors table, metering equipped with flow controller and downstream pressure in branch line
Device connects in a wherein branch line, characterized in that the flow controller in branch line can not except the hole count of throttle orifice
Other than the same, other all structural parameters of throttle orifice it is all the same, downstream pressure monitoring table is mounted on flow controller in branch line
Downstream line in, metering device is installed therein in the downstream line of the downstream pressure monitoring table in a branch line, is made
Oil gas flows through each flow controller with the state not less than critical flow velocity, enters back into corresponding branch line.
2. a kind of branch line flow distribution device as described in claim 1, characterized in that the flow controller includes oil nozzle and section
The hole count of throttle orifice is at least provided with one in flowing plate, oil nozzle and choke block, other all structural parameters of throttle orifice include aperture,
Hole is long all the same with the finish in hole.
3. a kind of branch line flow distribution device as claimed in claim 1 or 2, characterized in that the flow controller includes installation
Flow controller one (5) and flow controller two (6) in branch line one (4) and branch line two (7).
4. a kind of branch line flow distribution device as claimed in claim 3, characterized in that the downstream pressure monitoring table includes
Downstream pressure monitors table one (3) and downstream pressure monitoring table two (8), and downstream pressure monitors table one (3) and downstream pressure monitors table
Two (8) are separately mounted in the downstream line of flow controller one (5) and flow controller two (6).
5. a kind of branch line flow distribution device as claimed in claim 4, characterized in that the import of the main line (2) with
The connection of oil gas supply pipeline, the outlet of branch line is connect with oil gas export pipeline.
6. a kind of branch line flow distribution device as claimed in claim 5, characterized in that connect with the main line (2)
Branch line includes branch line one (4) and branch line two (7), and branch line is at least provided with two.
7. for a kind of metering method of branch line flow distribution device as claimed in claim 6, characterized in that by known section
The flow controller of discharge orifice hole count is mounted in each branch line, with the stream on known any one branch line or main line (2)
Amount, or measures the flow on any one branch line or main line (2) by metering device, and throttles on flow controller
The hole count comparing calculation in hole obtains the flow in main line (2) or other branch lines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910658234.8A CN110219623B (en) | 2019-07-21 | 2019-07-21 | Branch pipeline flow distribution device and metering method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910658234.8A CN110219623B (en) | 2019-07-21 | 2019-07-21 | Branch pipeline flow distribution device and metering method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN110219623A true CN110219623A (en) | 2019-09-10 |
| CN110219623B CN110219623B (en) | 2023-06-20 |
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| CN201910658234.8A Active CN110219623B (en) | 2019-07-21 | 2019-07-21 | Branch pipeline flow distribution device and metering method thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5031465A (en) * | 1990-05-29 | 1991-07-16 | Texaco Inc. | Steam quality and mass flow rate measurement using critical flow choke upstream of an orifice plate |
| CN204630622U (en) * | 2015-03-30 | 2015-09-09 | 德阳市迪信佳阀门制造有限公司 | A kind of critical speed flowmeters amount system |
| CN106437652A (en) * | 2016-08-26 | 2017-02-22 | 新疆华隆油田科技股份有限公司 | Distribution and measurement adjusting device for injected steam in heavy oil production and using method thereof |
| CN109141545A (en) * | 2018-07-20 | 2019-01-04 | 芜湖佩林郁松计量科技有限公司 | A kind of steam allocation metering equipment |
| CN109138979A (en) * | 2018-10-25 | 2019-01-04 | 中石化石油工程技术服务有限公司 | The method and measuring equipment of equal flows branch path metering oil gas water well yield |
| CN109642812A (en) * | 2017-08-09 | 2019-04-16 | Ckd株式会社 | Flowmeter |
-
2019
- 2019-07-21 CN CN201910658234.8A patent/CN110219623B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5031465A (en) * | 1990-05-29 | 1991-07-16 | Texaco Inc. | Steam quality and mass flow rate measurement using critical flow choke upstream of an orifice plate |
| CN204630622U (en) * | 2015-03-30 | 2015-09-09 | 德阳市迪信佳阀门制造有限公司 | A kind of critical speed flowmeters amount system |
| CN106437652A (en) * | 2016-08-26 | 2017-02-22 | 新疆华隆油田科技股份有限公司 | Distribution and measurement adjusting device for injected steam in heavy oil production and using method thereof |
| CN109642812A (en) * | 2017-08-09 | 2019-04-16 | Ckd株式会社 | Flowmeter |
| CN109141545A (en) * | 2018-07-20 | 2019-01-04 | 芜湖佩林郁松计量科技有限公司 | A kind of steam allocation metering equipment |
| CN109138979A (en) * | 2018-10-25 | 2019-01-04 | 中石化石油工程技术服务有限公司 | The method and measuring equipment of equal flows branch path metering oil gas water well yield |
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