CN110207012A - A kind of simulator and analogy method of long distance pipeline - Google Patents
A kind of simulator and analogy method of long distance pipeline Download PDFInfo
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- CN110207012A CN110207012A CN201910525531.5A CN201910525531A CN110207012A CN 110207012 A CN110207012 A CN 110207012A CN 201910525531 A CN201910525531 A CN 201910525531A CN 110207012 A CN110207012 A CN 110207012A
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- 238000000034 method Methods 0.000 title claims abstract description 20
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 146
- 239000003345 natural gas Substances 0.000 claims abstract description 73
- 239000007789 gas Substances 0.000 claims description 283
- 230000005540 biological transmission Effects 0.000 claims description 107
- 238000000746 purification Methods 0.000 claims description 17
- 239000000203 mixture Substances 0.000 claims description 16
- 241000196324 Embryophyta Species 0.000 claims description 15
- 238000006073 displacement reaction Methods 0.000 claims description 12
- 235000007164 Oryza sativa Nutrition 0.000 claims description 8
- 235000009566 rice Nutrition 0.000 claims description 8
- 240000007594 Oryza sativa Species 0.000 claims 1
- 239000012530 fluid Substances 0.000 abstract description 8
- 230000001105 regulatory effect Effects 0.000 abstract description 7
- 238000004088 simulation Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 6
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 230000001276 controlling effect Effects 0.000 abstract description 2
- 241000209094 Oryza Species 0.000 description 7
- 239000000470 constituent Substances 0.000 description 7
- VTVVPPOHYJJIJR-UHFFFAOYSA-N carbon dioxide;hydrate Chemical compound O.O=C=O VTVVPPOHYJJIJR-UHFFFAOYSA-N 0.000 description 5
- 230000008859 change Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000003196 chaotropic effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 150000004677 hydrates Chemical class 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000005514 two-phase flow Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/02—Pipe-line systems for gases or vapours
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
Abstract
The present invention provides a kind of simulator of long distance pipeline and analogy methods, pass through design simulation device, and simulator is simulated with process simulation software HYSYS, the actual motion state of pipeline is monitored, simulation calculating is carried out by data of the HYSYS software to monitoring, obtain the analog results such as flow, temperature, pressure and the natural gas component of fluid, analog result plays guidance and regulating and controlling effect for actual production, has important directive significance especially for the lectotype selection of downstream natural gas secondary operation processing.
Description
Technical field
The invention belongs to gas gathering and transportation fields, and in particular to a kind of simulator and analogy method of long distance pipeline, it is special
It is not related to the simulator and analogy method of Long-distance Transmission Pipeline.
Background technique
Long distance pipeline refers to the place of production, repository, using the pipeline for transportation commodity medium between unit.Under normal circumstances,
Gas well institute producing natural gas is concentrated through that long distance pipeline is defeated to gas gathering station, and gas gathering station concentrates after summarizing is transported to purification plant's processing,
It is conditional between adjacent production process before natural gas purification processing, running parameter, operating status, production safety etc. that
This association, influences each other, and previous process normally goes on smoothly and reaches expected and requires to be the necessary condition for realizing latter procedure.
By interconnected collection transmission pipe network, (collection transmission pipe network is by the metal of different tube diameters, different wall thickness to gas gathering and transportation
Or the large area mesh duct structure of nonmetal pipeline composition) complete, gas gathering and transportation pipe network is in gas field or certain gas-producing area
In domain, (contain natural gas purification by the flow line of gas well mouth to gas gathering station and by gas gathering station, single-well station to natural gas processing plant
Factory) between raw material gas transmission pipe road constitute mesh duct system, be essential life during natural gas surface production
Produce facility.
In gas gathering and transportation, since collection transmission pipe network lacks simulator and simulation calculating, cause collecting defeated process medium fluid
Flow, temperature and pressure can not be obtained definitely, or even in pipe is defeated, since temperature declines in pipeline, generate some hydrates, sternly
The equipment such as downstream compressor, heat exchanger are affected again.
Summary of the invention
The simulator and analogy method for being designed to provide a kind of long distance pipeline of embodiment of the present invention, on overcoming
State technological deficiency.
In order to solve the above technical problems, the present invention provides a kind of simulators of long distance pipeline, it is characterised in that: including
Four groups of gas wells are No.1 gas well, No. two gas wells, No. three gas wells and No. four gas wells respectively；
The input end of the well head connection No.1 gas transmission line of the No.1 gas well, the well head of No. two gas wells connect No. two gas transmissions
The input end of pipeline, the well head of No. three gas wells connect the input end of No. three gas transmission lines, and No. four gas wells connect No. four
The input end of gas transmission line；
The outlet end of the No.1 gas transmission line and the outlet end of No. two gas transmission lines are connected to the entrance of same gas gathering station A,
The outlet end of the input end of the outlet connection mixing line A of gas gathering station A, the outlet end of mixing line A and No. three gas transmission lines is equal
It is connected to the entrance of same gas gathering station B, the input end of the outlet connection mixing line B of gas gathering station B, the outlet end of mixing line B
The entrance of same gas gathering station C is connected to the outlet end of No. four gas transmission lines, the outlet connection mixing line C's of gas gathering station C
The outlet end of input end, mixing line C is connected to purification plant.
In addition, the present invention also provides a kind of analogy methods of the simulator of long distance pipeline, comprising the following steps:
Step 1 establishes the simulator of long distance pipeline using HYSYS software, and the temperature of four gas wells is inputted in HYSYS software
Angle value and pressure value: 49 DEG C of the producing natural gas temperature of No.1 gas well 1, pressure 4135kpa, 2 producing natural gas temperature of No. two gas wells
45 DEG C, pressure 3450kPa, No. three 40 DEG C of the producing natural gas temperature of gas well 3, pressure 3497kPa, 4 producing natural gas of No. four gas wells
35 DEG C of temperature, pressure 4395kPa；
Step 2, according to the temperature value and pressure value of input, HYSYS software simulates the simulator of long distance pipeline, prison
The actual motion state of long distance pipeline is surveyed, analog result is recorded, obtains 35.4 DEG C of natural gas temperature of No.1 gas transmission line output,
Pressure 3269kPa, flow 425kmole/h；43.3 DEG C of natural gas temperature, pressure 3276kPa of No. two gas transmission lines output, stream
Measure 375kmole/h；The natural gas exported by No.1 gas transmission line and the natural gas of No. two gas transmission lines output enter gas collection jointly
The A that stands mixing, 36.3 DEG C of stream temperature of gas gathering station A output, pressure 3269kPa, flow 800kgmole/h；The logistics of output into
Enter mixing line A, 5 DEG C of stream temperature of mixing line A output, pressure 2754kPa, flow 800kgmole/h；
4.8 DEG C of natural gas temperature of No. three gas transmission lines output, pressure 2044kPa, flow 575kgmole/h；By No. three gas transmissions
The natural gas of pipeline output and the logistics of mixing line A output enter gas gathering station B mixing, the logistics temperature of gas gathering station B output jointly
1.1 DEG C, pressure 2044kPa, flow 1375kgmole/h of degree；The logistics of output enters mixing line B, mixing line B output
4.9 DEG C of stream temperature, pressure 1797kPa, flow 1375kgmole/h；
4.9 DEG C of natural gas temperature of No. four gas transmission lines output, pressure 2946kPa, flow 545kgmole/h；By No. four gas transmissions
The natural gas of pipeline output and the logistics of mixing line B output enter gas gathering station C mixing, the natural gas of gas gathering station C output jointly
5.6 DEG C of temperature, 4.9 DEG C of stream temperature, pressure 1596kPa of pressure 1797kPa, mixing line C output, flow
1920kgmole/h directly inputs purification plant.
Preferably, the No.1 gas transmission line is sequentially connected by three pipeline sections and is formed, 150 meters of pipeline section I length, height above sea level
645 meters ,+6 meters of difference in height；125 meters of pipeline section II length, 636.5 meters of height above sea level, -8.5 meters of difference in height；Pipeline section III length 100
Rice, 637 meters of height above sea level ,+0.5 meter of difference in height；The earth's surface buried depth of three pipeline sections is 1 meter.
Further, No. two gas transmission lines are made of a pipeline section, and 200 meters of length of pipe section, 637 meters of height above sea level,
+ 23 meters of difference in height, 1 meter of earth's surface buried depth.
Preferably, No. three gas transmission lines are sequentially connected by three pipeline sections forms, 160 meters of pipeline section I length, height above sea level
648 meters ,+12.5 meters of difference in height；100 meters of pipeline section II length, 634 meters of height above sea level, -14 meters of difference in height；Pipeline section III length 205
Rice, 633 meters of height above sea level, -4 meters of difference in height；The earth's surface buried depth of three pipeline sections is 1 meter.
Preferably, No. four gas transmission lines are made of two pipeline section connections, 180 meters of pipeline section I length, height above sea level 625
Rice, -7.5 meters of depth displacement；165 meters of pipeline section II length, 617 meters of height above sea level, -8 meters of depth displacement；The earth's surface of described two pipeline sections is buried
It is deeply 1 meter.
Further, the mixing line A is made of a pipeline section, and 355 meters of length of pipe section, 633 meters of height above sea level, height
- 1 meter of difference；The earth's surface buried depth of the pipeline section is 1 meter.
Further, the mixing line B is made of a pipeline section, and 300 meters of length of pipe section, 617 meters of height above sea level, height
- 16 meters of difference；The earth's surface buried depth of the pipeline section is 1 meter.
Preferably, the mixing line C is made of a pipeline section, and 340 meters of length of pipe section, 604 meters of height above sea level, elevation
- 13 meters of difference, the earth's surface buried depth of the pipeline section are 1 meter.
Beneficial effects of the present invention are as follows: the simulator and analogy method for the long distance pipeline that the present invention protects, by setting
Simulator is counted, and simulator is simulated with process simulation software HYSYS, the actual motion state of pipeline is carried out
Monitoring, carries out simulation calculating by data of the HYSYS software to monitoring, is calculated by simulation, obtains the fluid that each branch line comes out
Flow, pressure, the analog results such as natural gas component of temperature and every branch line, analog result for actual production rise guidance and
Regulating and controlling effect has important directive significance especially for the lectotype selection of downstream natural gas secondary operation processing.
For above content of the invention can be clearer and more comprehensible, preferred embodiment is cited below particularly, and in conjunction with attached drawing, make detailed
It is described as follows.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the simulator of long distance pipeline.
Description of symbols:
1. No.1 gas well；2. No. two gas wells；3. No. three gas wells；4. No. four gas wells；5. gas gathering station A；6. mixing line A；7. gas collection
Stand B；8. mixing line B；9. gas gathering station C；10. mixing line C；11. purification plant；
101. No.1 gas transmission line；201. No. two gas transmission lines；301. No. three gas transmission lines；401. No. four gas transmission lines.
Specific embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this specification
Revealed content is understood other advantages and efficacy of the present invention easily.
It should be noted that in the present invention, the upper and lower, left and right in figure are considered as long distance pipeline described in this specification
Simulator upper and lower, left and right.
Description introduces exemplary embodiments of the present invention, however, the present invention can use many different forms
Implement, and be not limited to the embodiment described herein, providing these embodiments is at large and fully disclose this
Invention, and the scope of the present invention is sufficiently conveyed to person of ordinary skill in the field.For the example being illustrated in the accompanying drawings
Term in property embodiment is not limitation of the invention.In the accompanying drawings, identical cells/elements use identical attached drawing
Label.
Unless otherwise indicated, term (including scientific and technical terminology) used herein has person of ordinary skill in the field
It is common to understand meaning.Further it will be understood that with the term that usually used dictionary limits, should be understood as and its
The context of related fields has consistent meaning, and is not construed as Utopian or too formal meaning.
Embodiment 1:
The first embodiment of the present invention is related to a kind of simulators of long distance pipeline, including four groups of gas wells, are No.1 gas respectively
The gas well 3 of gas well 2, three of well 1, two and No. four gas wells 4；
The input end of the well head connection No.1 gas transmission line 101 of the No.1 gas well 1, the well head connection two of No. two gas wells 2
The input end of number gas transmission line 201, the well head of No. three gas wells 3 connect the input end of No. three gas transmission lines 301, and described No. four
Gas well 4 connects the input end of No. four gas transmission lines 401；
The outlet end of the No.1 gas transmission line 101 and the outlet end of No. two gas transmission lines 201 are connected to same gas gathering station A5
Entrance, the input end of the outlet connection mixing line A6 of gas gathering station A5, the outlet end of mixing line A6 and No. three gas transmission lines
301 outlet end is connected to the entrance of same gas gathering station B7, and the input end of the outlet connection mixing line B8 of gas gathering station B7 mixes
The outlet end of the outlet end and No. four gas transmission lines 401 of closing pipeline B8 is connected to the entrance of same gas gathering station C9, gas gathering station C9
Outlet connection mixing line C10 input end, the outlet end of mixing line C10 is connected to purification plant 11.
The course of work of the simulator of long distance pipeline is in the present embodiment:
The natural gas of four groups of gas well liquid loadings passes through the gas transmission line of gas transmission line 201, three of No.1 gas transmission line 101, two respectively
301 and No. four gas transmission lines 401 transport, specifically, No.1 gas transmission line 101 and No. two gas transmission lines 201 transport naturally respectively
Gas carries out reducing pressure by regulating flow to the natural gas that each gas well is sent in gas gathering station A5 respectively, separates the trip in gas to gas gathering station A5
Chaotropic and other mechanical admixtures, metering gas well yield, input mixing line A6, the natural gas and three in mixing line A6 after the completion
The natural gas of number gas transmission line 301 is connected to gas gathering station B7, passes through mixing line B8 and No. four appendixs after reducing pressure by regulating flow, metering
Line 401 inputs mixing line C10 simultaneously, is connected to purification plant 11 through mixing line C10, carries out purified treatment into purification plant 11.
It should be noted that gas gathering station refers to collection and handles the terminal of natural gas.Two mouthfuls or more of gas well is distinguished
It is connected to gas gathering station from well head with pipeline, in station reducing pressure by regulating flow carried out to the natural gas that each gas well is sent respectively, separated in gas
Free liquid and other mechanical admixtures, metering gas well yield then each gas well gas is converged after by gas gathering station input gas collection do
Line.With the reduction of gas temperature while due to gas throttling decompression, if gas pressure, temperature condition are in hydrate life
At area, then cooking appliance need to be set in the upstream of reducing pressure by regulating flow, the blocking pipeline to avoid generation hydrate.Gas gathering station is main
It is made of 6 systems: natural gas pressure regulating metering system, natural gas purification system, opening natural gas compression system, natural gas storing system
System, CNG refueling system, control system.The natural gas of gas station is delivered to after pressure stabilizing is measured, into purifying processing device into
Row purified treatment, is pressurizeed with compressor, then is sent into gas storage system through sequential control disk after high press-dehydrating, finally by dispenser pair
Outer metering aerating.
Gas gathering and transportation pipe network is simulated using simulator provided in this embodiment, and is transported according to the gas gathering and transportation pipe network
Gas field gathering line is simulated with process simulation software HYSYS, the actual motion state of pipeline is monitored, knows collection
The data such as temperature, pressure and the flow of defeated process medium fluid, distance, elevation according to gas well apart from gas gathering station can determine collector and delivery pipe
The diameter in road estimates outer defeated composition, temperature and pressure to downstream natural gas, for setting for downstream natural gas secondary operation processing
Alternative type has important directive significance.
Embodiment 2:
Second embodiment of the present invention is related to a kind of simulator of long distance pipeline, as shown in Figure 1, include four groups of gas wells, point
It is not the gas well 3 of gas well 2, three of No.1 gas well 1, two and No. four gas wells 4；
The input end of the well head connection No.1 gas transmission line 101 of the No.1 gas well 1, the well head connection two of No. two gas wells 2
The input end of number gas transmission line 201, the well head of No. three gas wells 3 connect the input end of No. three gas transmission lines 301, and described No. four
Gas well 4 connects the input end of No. four gas transmission lines 401；
The outlet end of the No.1 gas transmission line 101 and the outlet end of No. two gas transmission lines 201 are connected to same gas gathering station A5
Entrance, the input end of the outlet connection mixing line A6 of gas gathering station A5, the outlet end of mixing line A6 and No. three gas transmission lines
301 outlet end is connected to the entrance of same gas gathering station B7, and the input end of the outlet connection mixing line B8 of gas gathering station B7 mixes
The outlet end of the outlet end and No. four gas transmission lines 401 of closing pipeline B8 is connected to the entrance of same gas gathering station C9, gas gathering station C9
Outlet connection mixing line C10 input end, the outlet end of mixing line C10 is connected to purification plant 11.
Specifically, preferably, reference is following this gives the optimum data value of simulator:
No.1 gas transmission line 101 is sequentially connected by three pipeline sections and is formed, 150 meters of pipeline section I length, and 645 meters of height above sea level, difference in height
+ 6 meters；125 meters of pipeline section II length, 636.5 meters of height above sea level, -8.5 meters of difference in height；100 meters of pipeline section III length, height above sea level
637 meters ,+0.5 meter of difference in height；The earth's surface buried depth of three pipeline sections is 1 meter.
No. two gas transmission lines 201 are made of a pipeline section, and 200 meters of length of pipe section, 637 meters of height above sea level, difference in height+23
Rice, 1 meter of earth's surface buried depth.
No. three gas transmission lines 301 are sequentially connected by three pipeline sections and are formed, 160 meters of pipeline section I length, 648 meters of height above sea level, high
Spend poor+12.5 meters；100 meters of pipeline section II length, 634 meters of height above sea level, -14 meters of difference in height；205 meters of pipeline section III length, height above sea level
633 meters, -4 meters of difference in height of degree；The earth's surface buried depth of three pipeline sections is 1 meter.
No. four gas transmission lines 401 are made of two pipeline section connections, 180 meters of pipeline section I length, and 625 meters of height above sea level, elevation
- 7.5 meters of difference；165 meters of pipeline section II length, 617 meters of height above sea level, -8 meters of depth displacement；The earth's surface buried depth of described two pipeline sections is 1
Rice.
It should be noted that height above sea level is also referred to as absolute altitude, refer to the difference in height on somewhere and sea level, usually with average
Standard is done to calculate in sea level, indicates that some place of ground is higher by the vertical range on sea level；Difference in height is point-to-point transmission depth displacement,
I.e. terminal elevation subtracts starting point elevation.
Embodiment 3:
Referring to Fig.1, third embodiment of the present invention is related to a kind of simulator of long distance pipeline, including four groups of gas wells, respectively
It is the gas well 3 of gas well 2, three of No.1 gas well 1, two and No. four gas wells 4；
The input end of the well head connection No.1 gas transmission line 101 of the No.1 gas well 1, the well head connection two of No. two gas wells 2
The input end of number gas transmission line 201, the well head of No. three gas wells 3 connect the input end of No. three gas transmission lines 301, and described No. four
Gas well 4 connects the input end of No. four gas transmission lines 401；
The outlet end of the No.1 gas transmission line 101 and the outlet end of No. two gas transmission lines 201 are connected to same gas gathering station A5
Entrance, the input end of the outlet connection mixing line A6 of gas gathering station A5, the outlet end of mixing line A6 and No. three gas transmission lines
301 outlet end is connected to the entrance of same gas gathering station B7, and the input end of the outlet connection mixing line B8 of gas gathering station B7 mixes
The outlet end of the outlet end and No. four gas transmission lines 401 of closing pipeline B8 is connected to the entrance of same gas gathering station C9, gas gathering station C9
Outlet connection mixing line C10 input end, the outlet end of mixing line C10 is connected to purification plant 11.
Specifically, preferably, reference is following this gives the optimum data value of simulator:
No.1 gas transmission line 101 is sequentially connected by three pipeline sections and is formed, 150 meters of pipeline section I length, and 645 meters of height above sea level, difference in height
+ 6 meters；125 meters of pipeline section II length, 636.5 meters of height above sea level, -8.5 meters of difference in height；100 meters of pipeline section III length, height above sea level
637 meters ,+0.5 meter of difference in height；The earth's surface buried depth of three pipeline sections is 1 meter.
No. two gas transmission lines 201 are made of a pipeline section, and 200 meters of length of pipe section, 637 meters of height above sea level, difference in height+23
Rice, 1 meter of earth's surface buried depth.
No. three gas transmission lines 301 are sequentially connected by three pipeline sections and are formed, 160 meters of pipeline section I length, 648 meters of height above sea level, high
Spend poor+12.5 meters；100 meters of pipeline section II length, 634 meters of height above sea level, -14 meters of difference in height；205 meters of pipeline section III length, height above sea level
633 meters, -4 meters of difference in height of degree；The earth's surface buried depth of three pipeline sections is 1 meter.
No. four gas transmission lines 401 are made of two pipeline section connections, 180 meters of pipeline section I length, and 625 meters of height above sea level, elevation
- 7.5 meters of difference；165 meters of pipeline section II length, 617 meters of height above sea level, -8 meters of depth displacement；The earth's surface buried depth of described two pipeline sections is 1
Rice.
Mixing line A6 is made of a pipeline section, and 355 meters of length of pipe section, 633 meters of height above sea level, -1 meter of difference in height；It is described
The earth's surface buried depth of pipeline section is 1 meter.
Mixing line B8 is made of a pipeline section, and 300 meters of length of pipe section, 617 meters of height above sea level, -16 meters of difference in height；It is described
The earth's surface buried depth of pipeline section is 1 meter.
Mixing line C10 is made of a pipeline section, and 340 meters of length of pipe section, 604 meters of height above sea level, -13 meters of depth displacement, institute
The earth's surface buried depth for stating pipeline section is 1 meter.
Embodiment 4:
Present embodiments provide a kind of analogy method of the simulator of long distance pipeline, comprising the following steps:
Step 1, the simulator of long distance pipeline is established using HYSYS software, and the simulator of long distance pipeline includes four groups of gas
Well is the gas well 3 of gas well 2, three of No.1 gas well 1, two and No. four gas wells 4 respectively；
The input end of the well head connection No.1 gas transmission line 101 of the No.1 gas well 1, the well head connection two of No. two gas wells 2
The input end of number gas transmission line 201, the well head of No. three gas wells 3 connect the input end of No. three gas transmission lines 301, and described No. four
Gas well 4 connects the input end of No. four gas transmission lines 401；
The outlet end of the No.1 gas transmission line 101 and the outlet end of No. two gas transmission lines 201 are connected to same gas gathering station A5
Entrance, the input end of the outlet connection mixing line A6 of gas gathering station A5, the outlet end of mixing line A6 and No. three gas transmission lines
301 outlet end is connected to the entrance of same gas gathering station B7, and the input end of the outlet connection mixing line B8 of gas gathering station B7 mixes
The outlet end of the outlet end and No. four gas transmission lines 401 of closing pipeline B8 is connected to the entrance of same gas gathering station C9, gas gathering station C9
Outlet connection mixing line C10 input end, the outlet end of mixing line C10 is connected to purification plant 11.
Specifically, preferably, reference is following this gives the optimum data value of simulator:
No.1 gas transmission line 101 is sequentially connected by three pipeline sections and is formed, 150 meters of pipeline section I length, and 645 meters of height above sea level, difference in height
+ 6 meters；125 meters of pipeline section II length, 636.5 meters of height above sea level, -8.5 meters of difference in height；100 meters of pipeline section III length, height above sea level
637 meters ,+0.5 meter of difference in height；The earth's surface buried depth of three pipeline sections is 1 meter.No. two gas transmission lines 201 are by a pipeline section group
At 200 meters of length of pipe section, 637 meters of height above sea level ,+23 meters of difference in height, 1 meter of earth's surface buried depth.No. three gas transmission lines 301 are by three
Pipeline section is sequentially connected composition, 160 meters of pipeline section I length, and 648 meters of height above sea level ,+12.5 meters of difference in height；100 meters of pipeline section II length,
634 meters of height above sea level, -14 meters of difference in height；205 meters of pipeline section III length, 633 meters of height above sea level, -4 meters of difference in height；Described three
The earth's surface buried depth of pipeline section is 1 meter.No. four gas transmission lines 401 are made of two pipeline section connections, 180 meters of pipeline section I length, height above sea level
625 meters, -7.5 meters of depth displacement of degree；165 meters of pipeline section II length, 617 meters of height above sea level, -8 meters of depth displacement；Described two pipeline sections
Earth's surface buried depth is 1 meter.
Mixing line A6 is made of a pipeline section, and 355 meters of length of pipe section, 633 meters of height above sea level, -1 meter of difference in height；It is described
The earth's surface buried depth of pipeline section is 1 meter.Mixing line B8 is made of a pipeline section, and 300 meters of length of pipe section, 617 meters of height above sea level, height
- 16 meters of difference；The earth's surface buried depth of the pipeline section is 1 meter.Mixing line C10 is made of a pipeline section, and 340 meters of length of pipe section, height above sea level
Highly 604 meters, -13 meters of depth displacement, the earth's surface buried depth of the pipeline section is 1 meter.
Next, corresponding parameter is inputted or selected in HYSYS software, such as each fluids within pipes in simulator
Temperature value and pressure value:
Step 1 establishes the simulator of long distance pipeline using HYSYS software, and the temperature of four gas wells is inputted in HYSYS software
Angle value and pressure value: 49 DEG C of the producing natural gas temperature of No.1 gas well 1, pressure 4135kpa, 2 producing natural gas temperature of No. two gas wells
45 DEG C, pressure 3450kPa, No. three 40 DEG C of the producing natural gas temperature of gas well 3, pressure 3497kPa, 4 producing natural gas of No. four gas wells
35 DEG C of temperature, pressure 4395kPa；
Step 2, according to the temperature value and pressure value of input, HYSYS software simulates the simulator of long distance pipeline, prison
The actual motion state of long distance pipeline to be surveyed, analog result is recorded, analog result includes the flow of fluid, temperature and pressure, and
Natural gas component, specific analog result obtain as follows: 35.4 DEG C of natural gas temperature of the output of No.1 gas transmission line 101 are obtained,
Pressure 3269kPa, flow 425kmole/h；43.3 DEG C of natural gas temperature, pressure 3276kPa of No. two gas transmission lines 201 output,
Flow 375kmole/h；The natural gas that the natural gas exported by No.1 gas transmission line 101 and No. two gas transmission lines 201 export is common
It is mixed into gas gathering station A5,36.3 DEG C of stream temperature of gas gathering station A5 output, pressure 3269kPa, flow 800kgmole/h；It is defeated
Logistics out enters mixing line A6, and 5 DEG C of stream temperature of mixing line A6 output, pressure 2754kPa, flow 800kgmole/
h；
4.8 DEG C of natural gas temperature of No. three gas transmission lines 301 output, pressure 2044kPa, flow 575kgmole/h；It is defeated by No. three
The logistics for natural gas and mixing line the A6 output that gas pipeline 301 exports enters gas gathering station B7 mixing, gas gathering station B7 output jointly
1.1 DEG C of stream temperature, pressure 2044kPa, flow 1375kgmole/h；The logistics of output enters mixing line B8, mixing tube
4.9 DEG C of stream temperature of line B8 output, pressure 1797kPa, flow 1375kgmole/h；
4.9 DEG C of natural gas temperature of No. four gas transmission lines 401 output, pressure 2946kPa, flow 545kgmole/h；It is defeated by No. four
The logistics for natural gas and mixing line the B8 output that gas pipeline 401 exports enters gas gathering station C9 mixing, gas gathering station C9 output jointly
5.6 DEG C of natural gas temperature, pressure 1797kPa, mixing line C10 output 4.9 DEG C of stream temperature, pressure 1596kPa, flow
1920kgmole/h directly inputs purification plant 11.
It is noted that above-mentioned flux unit kgmole/h and kmole/h are identical meanings, kilomol is indicated
Per hour.
Particularly, the natural gas molar constituent table for four gas wells being calculated according to HYSYS software is as follows:
The natural gas molar constituent table of 1 No.1 gas well 1 of table
| Component | C1 | C2 | C3 | i-c4 | n-c4 | i-c5 | n-c5 | C6 | N2 | H2S | CO2 | H2O |
| Composition | 72.5% | 8.2% | 4.6% | 1.5% | 1.8% | 1.2% | 1.3% | 0.9% | 0 | 4.1% | 1.5% | 0 |
The natural gas molar constituent table of 2 No. two gas wells 2 of table
| Component | C1 | C2 | C3 | i-c4 | n-c4 | i-c5 | n-c5 | C6 | N2 | H2S | CO2 | H2O |
| Composition | 68% | 19.2% | 7.1% | 1.2% | 0.9% | 0.4% | 0.2% | 0 | 0.3% | 2.4% | 0.5% | 0 |
The natural gas molar constituent table of 3 No. three gas wells 3 of table
| Component | C1 | C2 | C3 | i-c4 | n-c4 | i-c5 | n-c5 | C6 | N2 | H2S | CO2 | H2O |
| Composition | 56.6% | 25.5% | 1.5% | 0.4% | 0.8% | 0.4% | 0.4% | 0.6% | 0.5% | 1.4% | 2.1% | 9% |
The natural gas molar constituent table of 4 No. four gas wells 4 of table
| Component | C1 | C2 | C3 | i-c4 | n-c4 | i-c5 | n-c5 | C6 | N2 | H2S | CO2 | H2O |
| Composition | 41.8% | 8.9% | 7.1% | 1.5% | 3.8% | 1.3% | 1.6% | 0 | 1% | 0 | 0.4% | 0 |
The natural gas molar constituent table of 5 purification plant of table
| Component | C1 | C2 | C3 | i-c4 | n-c4 | i-c5 | n-c5 | C6 | N2 | H2S | CO2 | H2O |
| Composition | 58.2% | 15.7% | 4.8% | 1.1% | 1.9% | 0.8% | 0.9% | 0.4% | 0.5% | 1.8% | 1.1% | 2.7% |
According to natural gas molar constituent table in 1~table of table 5, it can be inferred that other components do not have as natural gas flows in the duct
Have big variation, water component falls to 2.7% by original 9%, this is because in pipeline water component with long-distance transport pipes temperature
Variation and change, be mostly due to temperature gradient after each branch line mixes and the evaporating loss that generates.
The simulation system and method for the long distance pipeline that the present invention protects are when being flowed in the duct according to two phase flow, in pipeline
The temperature and pressure of heat loss fluid calculated caused by the temperature of natural gas and the temperature difference of external environment.The temperature of fluid
Degree and pressure change also with the heat transfer coefficient of inside pipe wall, thermal insulation material, material thermal conductivity, soil types, soil thermal conductivity,
Buried depth is relevant.The simulation system and method for long distance pipeline according to the composition of unstripped gas, distance of the gas well apart from gas gathering station,
Elevation can determine the diameter of gathering line, outer defeated composition, temperature and pressure to downstream natural gas be estimated, for downstream natural gas
The lectotype selection of secondary operation processing has important directive significance.
It will be understood by those skilled in the art that the respective embodiments described above are to realize specific embodiments of the present invention,
And in practical applications, can to it, various changes can be made in the form and details, without departing from the spirit and scope of the present invention.
Claims (9)
1. a kind of simulator of long distance pipeline, it is characterised in that: be No.1 gas well (1), No. two gas respectively including four groups of gas wells
Well (2), No. three gas wells (3) and No. four gas wells (4)；
The input end of well head connection No.1 gas transmission line (101) of the No.1 gas well (1), the well head of No. two gas wells (2)
Connect the input end of No. two gas transmission lines (201), the well head of No. three gas wells (3) connect No. three gas transmission lines (301) into
Mouth end, No. four gas wells (4) connect the input end of No. four gas transmission lines (401)；
The outlet end of the No.1 gas transmission line (101) and the outlet end of No. two gas transmission lines (201) are connected to same gas collection
Stand A(5) entrance, gas gathering station A(5) outlet connect mixing line A(6) input end, mixing line A(6) outlet end and
The outlet end of No. three gas transmission lines (301) is connected to same gas gathering station B(7) entrance, gas gathering station B(7) outlet connection it is mixed
Close pipeline B(8) input end, mixing line B(8) outlet end and the outlet ends of No. four gas transmission lines (401) be connected to together
One gas gathering station C(9) entrance, gas gathering station C(9) outlet connect mixing line C(10) input end, mixing line C(10)
Outlet end is connected to purification plant (11).
2. the simulator of long distance pipeline as described in claim 1, it is characterised in that: the No.1 gas transmission line (101) by
Three pipeline sections are sequentially connected composition, 150 meters of pipeline section I length, and 645 meters of height above sea level ,+6 meters of difference in height；125 meters of pipeline section II length,
636.5 meters of height above sea level, -8.5 meters of difference in height；100 meters of pipeline section III length, 637 meters of height above sea level ,+0.5 meter of difference in height；It is described
The earth's surface buried depth of three pipeline sections is 1 meter.
3. the simulator of long distance pipeline as described in claim 1, it is characterised in that: No. two gas transmission lines (201) by
One pipeline section composition, 200 meters of length of pipe section, 637 meters of height above sea level ,+23 meters of difference in height, 1 meter of earth's surface buried depth.
4. the simulator of long distance pipeline as described in claim 1, it is characterised in that: No. three gas transmission lines (301) by
Three pipeline sections are sequentially connected composition, 160 meters of pipeline section I length, and 648 meters of height above sea level ,+12.5 meters of difference in height；Pipeline section II length 100
Rice, 634 meters of height above sea level, -14 meters of difference in height；205 meters of pipeline section III length, 633 meters of height above sea level, -4 meters of difference in height；Described three
The earth's surface buried depth of a pipeline section is 1 meter.
5. the simulator of long distance pipeline as described in claim 1, it is characterised in that: No. four gas transmission lines (401) by
Two pipeline section connection compositions, 180 meters of pipeline section I length, 625 meters of height above sea level, -7.5 meters of depth displacement；165 meters of pipeline section II length, sea
617 meters of degree of lifting, -8 meters of depth displacement；The earth's surface buried depth of described two pipeline sections is 1 meter.
6. the simulator of the long distance pipeline as described in claims 1 or 2 or 3, it is characterised in that: the mixing line A(6) by
One pipeline section composition, 355 meters of length of pipe section, 633 meters of height above sea level, -1 meter of difference in height；The earth's surface buried depth of the pipeline section is 1 meter.
7. the simulator of long distance pipeline as described in claim 1, it is characterised in that: the mixing line B(8) it is managed by one
Duan Zucheng, 300 meters of length of pipe section, 617 meters of height above sea level, -16 meters of difference in height；The earth's surface buried depth of the pipeline section is 1 meter.
8. the simulator of long distance pipeline as described in claim 1, it is characterised in that: the mixing line C(10) by one
Pipeline section composition, 340 meters of length of pipe section, 604 meters of height above sea level, -13 meters of depth displacement, the earth's surface buried depth of the pipeline section is 1 meter.
9. a kind of analogy method of the simulator of the long distance pipeline as described in any claim in claim 1~8, special
Sign is, comprising the following steps:
Step 1 establishes the simulator of long distance pipeline using HYSYS software, and the temperature of four gas wells is inputted in HYSYS software
Angle value and pressure value: 49 DEG C of producing natural gas temperature of No.1 gas well (1) institute, pressure 4135kpa, No. two gas well (2) institute producing natural gas
Temperature 45 C, pressure 3450kPa, No. three 40 DEG C of producing natural gas temperature of gas well (3) institutes, pressure 3497kPa, No. four gas well (4) institutes
35 DEG C of producing natural gas temperature, pressure 4395kPa；
Step 2, according to the temperature value and pressure value of input, HYSYS software simulates the simulator of long distance pipeline, prison
The actual motion state of long distance pipeline is surveyed, analog result is recorded, obtains the natural gas temperature of No.1 gas transmission line (101) output
35.4 DEG C, pressure 3269kPa, flow 425kmole/h；43.3 DEG C of natural gas temperature of No. two gas transmission lines (201) output, pressure
Power 3276kPa, flow 375kmole/h；It is defeated by the natural gas and No. two gas transmission lines (201) of No.1 gas transmission line (101) output
Natural gas out enters gas gathering station A(5 jointly) mixing, gas gathering station A(5) output 36.3 DEG C of stream temperature, pressure 3269kPa,
Flow 800kgmole/h；The logistics of output enters mixing line A(6), mixing line A(6) output 5 DEG C of stream temperature, pressure
2754kPa, flow 800kgmole/h；
4.8 DEG C of natural gas temperature of No. three gas transmission lines (301) output, pressure 2044kPa, flow 575kgmole/h；By No. three
Gas transmission line (301) output natural gas and mixing line A(6) output logistics enter gas gathering station B(7 jointly) mixing, gas collection
Stand B(7) output 1.1 DEG C of stream temperature, pressure 2044kPa, flow 1375kgmole/h；The logistics of output enters mixing line
B(8), mixing line B(8) output 4.9 DEG C of stream temperature, pressure 1797kPa, flow 1375kgmole/h；
4.9 DEG C of natural gas temperature of No. four gas transmission lines (401) output, pressure 2946kPa, flow 545kgmole/h；By No. four
Gas transmission line (401) output natural gas and mixing line B(8) output logistics enter gas gathering station C(9 jointly) mixing, gas collection
Stand C(9) output 5.6 DEG C of natural gas temperature, pressure 1797kPa, mixing line C(10) output 4.9 DEG C of stream temperature, pressure
1596kPa, flow 1920kgmole/h directly input purification plant (11).
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| CN113834419A (en) * | 2020-06-08 | 2021-12-24 | 中国石油天然气股份有限公司 | Pipeline depth measuring method and device |
| CN114018539A (en) * | 2021-09-15 | 2022-02-08 | 山东大学 | Seabed oil and gas pipeline stability model test device and test method |
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