CN101187660A - Double-slot type porous plate type mixed transportation metering device - Google Patents
Double-slot type porous plate type mixed transportation metering device Download PDFInfo
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- CN101187660A CN101187660A CNA2006100990647A CN200610099064A CN101187660A CN 101187660 A CN101187660 A CN 101187660A CN A2006100990647 A CNA2006100990647 A CN A2006100990647A CN 200610099064 A CN200610099064 A CN 200610099064A CN 101187660 A CN101187660 A CN 101187660A
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Abstract
The invention relates to a mixed transportation measuring device with a double-slot type and a perforated plate shape, which belongs to an on-line measuring instrument for high gas and condensate gas. A multiphase measuring meter has big errors when condensate natural gas is measured. The mixed transportation measuring device with the double-slot type and the perforated plate shape of the invention is formed through connecting an upper steam connecting flange, a measuring strait tube, an upper stream pressure taking device, a pressure stabilizing strait tube, a lower stream pressure taking device, a lower stream strait tube and a lower stream connecting flange in turn. A pressure transmitter is arranged on the lower stream strait tube, two pieces of slot-type perforated plates are arranged respectively in the upper stream pressure taking device and the lower stream pressure taking device, a temperature transmitter is arranged on the lower stream strait tube, and each transmitter is connected with a computer. Flowing processing software of the mixed transportation measuring device with the double-slot type and the perforated plate shape which is worked out according to a Murdock measuring model formula and artificial neural network technology transforms collected signals of pressures, pressure differences and temperatures into gas liquid flow quantity data, the flow quantity which is calculated is corrected through adopting the artificial neural network technology, and a final gas liquid measuring value is obtained.
Description
Technical field
The present invention relates to a kind of double-slot type porous plate type mixed transportation metering device, be mainly used in the heterogeneous metering of the CONDENSATE OIL AND GAS of high gassiness, belong to the on-line metering instrument that the oil-gas gathering and transportation pipeline is used in the petroleum industry.
Background technology
From 80 year-to-date, Multiphase Fluid Measurement Technology has obtained impressive progress both at home and abroad, up to now, internationally recognizedly reach commercialized degree and obtain comparatively that the multi-phase flowmeter product of extensive experimentation and application comprises: the Agar-301/401 of U.S. Agar company in industry spot, the MFM2000 of the silent company of China sea, the Fluenta 1900VI of Norway Roxor company and RFM flowmeter, the Framo multi-phase flowmeter of Norway Framo company, the MEGRA flowmeter of U.S. Daniel company, the V-Cone flowmeter of McCrometer company, the PECO flowmeter of the DualStream flowmeter of Britain Solartron company and U.S. PECO company, the VEGA flowmeter of Italy TEA company etc.These multiphase flow rate meters can reach 10% with 90% fiducial probability with interior gas-liquid phase measuring accuracy limiting under the operating mode.But because influences such as the variation of service condition and propagation of error, under some operating mode, the limit that profit phase uncertainty of measurement may be head and shoulders above ± 10%.Existing multi-phase flowmeter is that 10% ~ 90% oil-gas-water three-phase flow is measured at liquid holdup mostly, if directly be used for measuring liquid holdup less than 10% condensation rock gas, because the liquid phase content exceeds its scope of application, error is inevitable very big.The multi-phase flowmeter that can be directly used in the condensation gas metering only has Dual StreamII, V-Cone, PECO and four kinds of products of VEGA at present, wherein the DualStreamII flowmeter has been applied to the production scene, and all the other products still are in laboratory research and development and site test stage.
Summary of the invention
The objective of the invention is to develop the multi-phase mixed delivering flow apparatus of the oil gas field that is applicable to high gassiness, realize not separating the on-line metering of condensation rock gas.
In the practice, in line with reducing cost, improve the requirement of measuring accuracy, selected the model of Murdock relational expression for use as the heterogeneous oil gas metering device of development of new, the Murdock relational expression is based on orifice flowmeter, by AND DEWATERING FOR ORIFICE STRUCTURE is improved and various emulation experiment, reach measuring the correction of result of calculation, develop the heterogeneous measuring apparatus of price comparison economy.
Double-slot type porous plate type mixed transportation metering device of the present invention has selected for use slotted orifice plate as a throttling sensing element, slotted orifice plate is by constituting with the tangent circular slab of inner-walls of duct of having a slotted eye, slotted eye on the circular slab by at least one circle concentric and radially equally distributed slot type aperture form, circular slab outer rim and inner-walls of duct are tangent.In the practice, the slot type aperture of slotted orifice plate is designed to three circles around the circular slab axle center, and radially is evenly distributed on the circular slab of slotted orifice plate.
It adopts following technical scheme double-slot type porous plate type mixed transportation metering device of the present invention, be that a kind of double-slot type porous plate type mixed transportation metering device is connected in sequence by upstream joint flange, measurement straight tube, upstream pressure obtaning device, voltage stabilizing straight tube, downstream pressure obtaning device, downstream straight tube and downstream joint flange, it is characterized in that measuring straight tube and be provided with pressure unit, be equipped with a slice slotted orifice plate in upstream pressure obtaning device and the downstream pressure obtaning device, be provided with temperature transmitter on the straight tube of downstream, each transmitter is connected with computing machine.
The upstream pressure obtaning device is identical with downstream pressure obtaning device structure, but the aperture ratio of the slotted orifice plate that upstream and downstream are selected for use can be identical, also can be different.
Use A
SlotExpression institute grooved hole area summation, A represent that pipeline section is long-pending, and D is that pipe diameter, d are the standard orifice plate apertures, and the aperture ratio of slotted orifice plate is defined as:
Pressure obtaning device is by the pressure obtaning device housing and places the slotted orifice plate of housing inner chamber and the forward and backward pressure arm that communicates with pressure obtaning device housing inner chamber of slotted orifice plate both sides that is placed in, and is connected pressure flange on the forward and backward pressure arm and kapillary impulse pipeline and pressure difference transmitter and connects and composes.
Be provided with spring diaphragm at pressure flange and kapillary impulse pipeline junction.End at the pressure arm is equipped with valve.
When double-slot type porous plate type mixed transportation metering device uses, level is installed in the pipeline, and in pressure drop, temperature and pressure were measured, pressure detection was selected the ROSEMOUNT table for use, differential pressure detects selects differential pressure transmitter for use, and temperature is measured in real time by temperature sensor (temperature transmitter).
For preventing that the impurity in the line fluid from stopping up the slotted orifice plate of throttling, filtrator need be installed at the double-slot type porous plate type mixed transportation metering device inlet.
In the practice, gas-liquid two-phase is flowed through behind the slotted orifice plate, voltage stabilizing straight length about 3 times of pipe diameter length has returned to the flow state of upstream, pressure obtaning device before and after illustrating, when being dual grooved orifice plate applied in any combination, middle voltage stabilizing flow development length can suitably shorten, get 5 to 6 times of pipe diameter length, can make the flowmeter structure compactness, in addition, the small-bore is more responsive to the variation of liquid phase content than restricting element (slotted orifice plate), selects for use the small-bore to help improving the condensation natural gas liquids phase flow rate measuring accuracy of low liquid holdup than restricting element.
Technical scheme according to double-slot type porous plate type mixed transportation metering device, its measuring principle is to utilize Murdock metering model relational expression and artificial neural network technology to work out double-slot type porous plate type mixed transportation metering device flow process software---intelligent software system, set sample frequency by software processes, pressure, pressure reduction and the temperature signal gathered are converted into the gas-liquid data on flows, utilize the artificial neural network system that flow is revised again, draw final gas-liquid variable.
In practice, utilize the heterogeneous gas discharge Survey Software of Murdock relational expression, with two slotted orifice plate differential pressure Δ P that record
1, Δ P
2With inlet pressure P, outlet temperature T totally 4 measured values, handle back output gas-liquid separate phase flow rate, phase-splitting integrated flux, fluid temperature (F.T.), pressure and other parameters by certain calculation, calculate gained flow value and actual error this moment in 20%, through the artificial neural network system data are revised again, the error calculated rate is reached in 10%.
In practice, utilize between gas-liquid flow value that above-mentioned intelligent software systematic survey obtains and the actual value and coincide better, under 90% fiducial probability, gas liquid ratio is at 200～650Nm
3/ m
3In the scope, the gas flow measurement error is less than ± 5%, and liquid has reached the measuring accuracy requirement less than ± 10%.
Description of drawings
Fig. 1, the double-slot type porous plate type mixed transportation metering device structural representation
Among Fig. 1, pressure unit 1, upstream differential pressure transmitter 2, downstream differential pressure transmitter 3, temperature transmitter 4, upstream slotted orifice plate 5, downstream slotted orifice plate 6, computing machine 20.
Fig. 2, double-slot type porous plate type mixed transportation metering device line construction and signal measurement synoptic diagram
Among Fig. 2, pressure unit 1, upstream differential pressure transmitter 2, downstream differential pressure transmitter 3, temperature transmitter 4, upstream slotted orifice plate 5, downstream slotted orifice plate 6, upstream joint flange 7, measure straight tube 8, upstream pressure obtaning device 9, voltage stabilizing straight tube 10, downstream pressure obtaning device 11, downstream straight tube 12, preceding pressure arm 13, back pressure arm 14, pressure flange 15, spring diaphragm 16, kapillary impulse pipeline 17, valve 18, downstream joint flange 19.
Embodiment
Below in conjunction with drawings and Examples double-slot type porous plate type mixed transportation metering device of the present invention is further specified, double-slot type porous plate type mixed transportation metering device is installed on the horizontally disposed oil-gas pipeline of diameter D=50mm, by upstream joint flange 7, measure straight tube 8, upstream pressure obtaning device 9, voltage stabilizing straight tube 10, downstream pressure obtaning device 11, downstream straight tube 12 and downstream joint flange 19 are connected in sequence, on measurement straight tube 8, be provided with pressure unit 1, respectively be provided with a slice slotted orifice plate in upstream pressure obtaning device 9 and the downstream pressure obtaning device 11, be provided with temperature transmitter 4 on downstream straight tube 12, each transmitter is connected with computing machine 20.
Upstream pressure obtaning device 9 is identical with downstream pressure obtaning device 11 structures, and the slotted orifice plate aperture ratio that the upstream pressure obtaning device is selected for use is 0.75, and the slotted orifice plate aperture ratio that the downstream pressure obtaning device is selected for use is 0.5.Wherein, upstream pressure obtaning device 9 is by the housing of pressure obtaning device 9 and the preceding pressure arm 13 that communicates with pressure obtaning device housing inner chamber, the back pressure arm 14 of the slotted orifice plate 5 that places the housing inner chamber and the slotted orifice plate both sides that are placed in, and the pressure flange 15 and the kapillary impulse pipeline 17 that are connected on the forward and backward pressure arm connect and compose with upstream pressure difference transmitter 2.Be provided with spring diaphragm 16 at pressure flange 15 and kapillary impulse pipeline 17 junctions.End at pressure arm 13 is equipped with valve 18.
Middle voltage stabilizing flow development length is taken as 5 times of pipe diameter length, i.e. 250mm.
Claims (5)
1. a double-slot type porous plate type mixed transportation metering device is connected in sequence by upstream joint flange (7), measurement straight tube (8), upstream pressure obtaning device (9), voltage stabilizing straight tube (10), downstream pressure obtaning device (11), downstream straight tube (12) and downstream joint flange (19), it is characterized in that measuring straight tube (8) and be provided with pressure unit (1), respectively be provided with a slice slotted orifice plate in upstream pressure obtaning device (9) and the downstream pressure obtaning device (11), be provided with temperature transmitter (4) on downstream straight tube (12), each transmitter is connected with computing machine (20).
2. double-slot type porous plate type mixed transportation metering device as claimed in claim 1, it is characterized in that pressure obtaning device (9) is the housing and the preceding pressure arm (13) that communicates with pressure obtaning device housing inner chamber that places the slotted orifice plate (5) of housing inner chamber and the slotted orifice plate both sides that are placed in, back pressure arm (14) by pressure obtaning device (9), and the pressure flange (15) and the kapillary impulse pipeline (17) that are connected on the forward and backward pressure arm connect and compose with pressure difference transmitter (2).
3. double-slot type porous plate type mixed transportation metering device as claimed in claim 1 is characterized in that upstream pressure obtaning device (9) is identical with downstream pressure obtaning device (11) structure.
4. double-slot type porous plate type mixed transportation metering device as claimed in claim 2 is characterized in that being provided with spring diaphragm (16) at pressure flange (15) and kapillary impulse pipeline (17) junction.
5. double-slot type porous plate type mixed transportation metering device as claimed in claim 2 is characterized in that the end of pressure arm (13) is equipped with valve (18).
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| CN2006100990647A CN101187660B (en) | 2006-07-18 | 2006-07-18 | Double-slot type porous plate type mixed transportation metering device |
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| CN2006100990647A CN101187660B (en) | 2006-07-18 | 2006-07-18 | Double-slot type porous plate type mixed transportation metering device |
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| CN101187660A true CN101187660A (en) | 2008-05-28 |
| CN101187660B CN101187660B (en) | 2012-01-11 |
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| CN102435249A (en) * | 2011-10-19 | 2012-05-02 | 南京钢铁股份有限公司 | Connection method of pore plate and pipeline |
| CN103573249A (en) * | 2012-08-02 | 2014-02-12 | 中国石油天然气股份有限公司 | On-line metering device for gas and liquid yield of natural gas single well |
| CN103670368A (en) * | 2012-09-18 | 2014-03-26 | 中国石油天然气股份有限公司 | Gas-liquid two-phase metering device |
| CN104568651A (en) * | 2013-10-27 | 2015-04-29 | 中国石油化工集团公司 | On-line double-pressure vibrating tube type drilling fluid density measurement instrument and calculating method |
| US9430734B2 (en) | 2010-06-25 | 2016-08-30 | Petroliam Nasional Barhad (Petronas) | Method and system for validating energy measurement in a high pressure gas distribution network |
| CN107543587A (en) * | 2017-08-30 | 2018-01-05 | 济南大学 | Flow measuring apparatus is blended in a kind of gas-liquid two-phase |
| CN107701925A (en) * | 2017-09-21 | 2018-02-16 | 北京陆海善道科技发展有限公司 | Underground natural gas storage individual well note adopts same pipe bidirectional measuring device and metering method |
| CN108301819A (en) * | 2018-03-29 | 2018-07-20 | 北京石油化工学院 | A kind of natural gas wellhead metering throttling integrated apparatus |
| CN108931270A (en) * | 2018-09-05 | 2018-12-04 | 河北大学 | Diphasic stream parameter detection method based on porous restriction and acoustic emission |
| CN109764924A (en) * | 2019-02-25 | 2019-05-17 | 上海碳索能源环境服务有限公司 | Wide working condition high precision intelligent flow meter based on neural network model |
| CN111721370A (en) * | 2020-05-19 | 2020-09-29 | 中国石油大学(北京) | Double-nozzle natural gas flow measuring device and system based on differential pressure |
| CN114184241A (en) * | 2020-09-14 | 2022-03-15 | 中核核电运行管理有限公司 | Method for improving measurement stability of differential pressure flow of bubble-containing liquid of pressurized water reactor |
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| US6345536B1 (en) * | 1998-09-10 | 2002-02-12 | The Texas A&M University System | Multiple-phase flow meter |
| US6119710A (en) * | 1999-05-26 | 2000-09-19 | Cyber Instrument Technologies Llc | Method for wide range gas flow system with real time flow measurement and correction |
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| CN2396379Y (en) * | 1999-11-05 | 2000-09-13 | 左湘宁 | Integrated orificeplate flowmeter |
| CN2447729Y (en) * | 2000-09-04 | 2001-09-12 | 天津万通电子仪表有限公司 | Built-in orificeplate flowmeter |
| US6564824B2 (en) * | 2001-04-13 | 2003-05-20 | Flowmatrix, Inc. | Mass flow meter systems and methods |
| CN2480811Y (en) * | 2001-06-12 | 2002-03-06 | 刘孟禹 | Three-phase flow mixing transfusion measurer |
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| US9430734B2 (en) | 2010-06-25 | 2016-08-30 | Petroliam Nasional Barhad (Petronas) | Method and system for validating energy measurement in a high pressure gas distribution network |
| CN102435249A (en) * | 2011-10-19 | 2012-05-02 | 南京钢铁股份有限公司 | Connection method of pore plate and pipeline |
| CN103573249A (en) * | 2012-08-02 | 2014-02-12 | 中国石油天然气股份有限公司 | On-line metering device for gas and liquid yield of natural gas single well |
| CN103573249B (en) * | 2012-08-02 | 2016-11-09 | 中国石油天然气股份有限公司 | On-line metering device for gas and liquid yield of natural gas single well |
| CN103670368A (en) * | 2012-09-18 | 2014-03-26 | 中国石油天然气股份有限公司 | Gas-liquid two-phase metering device |
| CN104568651A (en) * | 2013-10-27 | 2015-04-29 | 中国石油化工集团公司 | On-line double-pressure vibrating tube type drilling fluid density measurement instrument and calculating method |
| CN107543587A (en) * | 2017-08-30 | 2018-01-05 | 济南大学 | Flow measuring apparatus is blended in a kind of gas-liquid two-phase |
| CN107701925A (en) * | 2017-09-21 | 2018-02-16 | 北京陆海善道科技发展有限公司 | Underground natural gas storage individual well note adopts same pipe bidirectional measuring device and metering method |
| CN107701925B (en) * | 2017-09-21 | 2023-10-20 | 北京陆海善道科技发展有限公司 | Single-well injection and production same-pipe bidirectional metering device and metering method for natural gas underground gas storage |
| CN108301819A (en) * | 2018-03-29 | 2018-07-20 | 北京石油化工学院 | A kind of natural gas wellhead metering throttling integrated apparatus |
| CN108931270A (en) * | 2018-09-05 | 2018-12-04 | 河北大学 | Diphasic stream parameter detection method based on porous restriction and acoustic emission |
| CN109764924A (en) * | 2019-02-25 | 2019-05-17 | 上海碳索能源环境服务有限公司 | Wide working condition high precision intelligent flow meter based on neural network model |
| CN111721370A (en) * | 2020-05-19 | 2020-09-29 | 中国石油大学(北京) | Double-nozzle natural gas flow measuring device and system based on differential pressure |
| CN111721370B (en) * | 2020-05-19 | 2022-08-26 | 中国石油大学(北京) | Double-nozzle natural gas flow measuring device and system based on differential pressure |
| CN114184241A (en) * | 2020-09-14 | 2022-03-15 | 中核核电运行管理有限公司 | Method for improving measurement stability of differential pressure flow of bubble-containing liquid of pressurized water reactor |
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Effective date of registration: 20170222 Address after: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Patentee after: China National Petroleum Corporation Patentee after: China Petroleum Pipeline Bureau Engineering Co., Ltd. Patentee after: China University of Petroleum Address before: 100724 Beijing, Xicheng District, shop No. 6 Kang Street, No. six Patentee before: China National Petroleum Corporation Patentee before: China Petroleum and Natural Gas Pipeline Bureau Patentee before: China University of Petroleum |