CN108982345A - A kind of equal portions flow-type multistage flow velocity multiphase pipeline erosion field test device - Google Patents
A kind of equal portions flow-type multistage flow velocity multiphase pipeline erosion field test device Download PDFInfo
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Abstract
The present invention relates to multiphase transportation pipeline erosion corrosion protection technology field, in particular to a kind of equal portions flow-type multistage flow velocity multiphase pipeline erosion field test device.The experimental rig includes one end connection of oil/gas well well head and gathering line, and the other end of gathering line connects built oil gas well production metering device；The bores test section one end such as Q flow connects inlet pipeline, and the other end is connected on the pipe ranges uniform flow test sections such as the bores such as 1/2Q flow by level-one split point；The other end of the pipe ranges uniform flow test section such as bores such as 1/2Q flow A is connected on second level split point by multiple straight pipe testpieces, elbow testpieces, and is connected respectively with one end pipe ranges uniform flow test section D such as the bores such as the one end pipe ranges uniform flow test pipe B, the 1/4Q flow such as bores such as 1/4Q flow by second level split point；Experimental rig provided by the invention has many advantages, such as that structure is simple, operational administrative is convenient, safe and reliable to operation and low investment.
Description
Technical field
The present invention relates to oil gas field multiphase transportation pipeline erosion corrosion protection technology field, in particular to a kind of equal portions flow
Formula multistage flow velocity multiphase pipeline erosion field test device.
Background technique
Currently, China mainly uses indoor instrument for Erosion Mechanism and the guard technology research of oil gas field multiphase transportation pipeline
The mode of device test, test(ing) medium condition and operating condition and production scene difference are very big, it follows that test result hardly possible
Accurately to reflect actual conditions, cause this field for many years without obtaining substantive technological progress achievement.In engineering reality
The technical measures that the erosion shield of oil gas field multiphase transportation pipeline is solved the problems, such as in border are only limitted to more renew carbon steel piping or use
Village's pipeline in stainless steel causes engineering construction cost high.So carrying out the research of production scene industrial test for pushing away
Technological progress into this field is most important.
A set of scene examination with gas-liquid delivery pipe flushing corrosion test function is constructed according to conventional processing technique level
Experiment device needs to configure necessary equipments and pressure, temperature, the liquid level such as oil gas water separator and oil, gas and water flow-meter
Equal supporting instruments and robot control system(RCS), investment up to tens to millions of members, but also there are high pressure oils, the single-phase flowmeter of gas and water
Amount inaccuracy and the separator in a whole set of experimental rig, instrument, the long-term continuous operation of control system cause Operation and Maintenance to work
The problems such as amount is big, safety management burden is big.
Summary of the invention
(1) technical problems to be solved
The present invention provides a kind of equal portions flow-type multistage flow velocity multiphase pipeline erosion field test devices, to overcome existing test
Technical matters process complexity, experimental rig construction cost height, poor, the Operation and Maintenance heavy workload of continuous operation security reliability etc. are asked
Topic.
(2) technical solution
To solve the above problems, a kind of equal portions flow-type multistage flow velocity multiphase pipeline erosion field test device of the present invention, comprising:
The bores straight line such as oil/gas well, gathering line, by-passing valve, inlet valve, inlet pipeline, 1Q flow test section, 1/2Q flow
The pipe ranges uniform flow test section B, level-one split point, two such as the bores such as pipe ranges uniform flow test section A, 1/2Q flows such as equal bores
The pipe ranges such as the bores such as the pipe ranges uniform flow test section such as bores such as fraction flow point A, 1/4Q flow A, second level split point, 1/4Q flow
The stream such as pipe ranges such as the bores such as pipe ranges uniform flow test section C, 1/4Q flow such as bores such as uniform flow test section B, 1/4Q flow
Fast test section D, Zhi Ganliu threeway testpieces A, Zhi Ganliu threeway testpieces B, return conduits, outlet valve, built oil/gas well produce
Measure metering device
The connection of one end of the oil/gas well well head and gathering line, the other end of the gathering line connect built by by-passing valve
Oil gas well production metering device；Erosion test device is connected to by inlet valve before the by-passing valve in the gathering line
Inlet pipeline one end, the inlet pipeline other end connect the bores test section one end such as Q flow, the bores developmental tube such as described Q flow
Section includes multiple straight pipe testpieces and elbow testpieces；The bores test section other end such as described Q flow is connected to level-one
The examination of the pipe ranges uniform flows such as the bores such as specification identical 1/2Q flow is connected on split point and by level-one split point
Test one end of the pipe ranges uniform flow test section B such as the bores such as one end and the 1/2Q flow of pipeline section A；
The other end of the pipe ranges uniform flow test section such as bores such as 1/2Q flow A passes through multiple straight pipe testpieces, elbow
Testpieces is connected on second level split point, and is tested respectively with pipe ranges uniform flows such as the bores such as 1/4Q flow by second level split point
The one end the pipe ranges uniform flow test section D such as bores such as the one end pipeline B, 1/4Q flow is connected；
It is tried by multiple straight pipe testpieces, elbow one end of the pipe ranges uniform flow test section such as bores such as 1/2Q flow B
Part is tested to be connected on second level split point, and by second level split point respectively with the pipe ranges uniform flow developmental tube such as bores such as 1/4Q flow
The one end pipe ranges uniform flow test section C such as the bores such as the one end section A, 1/4Q flow are connected；
The pipe ranges uniform flows such as the bores such as the pipe ranges uniform flow test section A such as bores such as the 1/4Q flow other end, 1/4Q flow
The test section C other end respectively by multiple straight pipe testpieces, elbow testpieces be connected to Zhi Ganliu threeway testpieces into
On mouthful A, the other end of the pipe ranges uniform flow test section such as bores such as described 1/4Q flow is by multiple straight pipe testpieces, curved
Head testpieces is connected in the import of Zhi Ganliu threeway testpieces A, and the outlet of the Zhi Ganliu threeway testpieces A passes through pipeline
It is connected in the import of Zhi Ganliu threeway testpieces B, the pipe ranges uniform flow test pipe other end such as bores such as described 1/4Q flow
It is connected to by several straight pipe testpieces, elbow testpieces in the import of Zhi Ganliu threeway testpieces B, the Zhi Ganliu tri-
The outlet of logical testpieces B is connect with return conduits with one end, and the return conduits other end connect and passes through with gathering line through outlet valve
The gathering line is connected on built oil gas well production metering device.
Preferably, the bores test section such as described Q flow includes single test pipe, multiple straight pipe testpieces and curved
Head testpieces.
Preferably, the pipe ranges such as bores such as pipe ranges uniform flow test section A and 1/2Q flow such as bores such as described 1/2Q flow
Uniform flow test section B is identical, including 2 etc. calibers, equivalent length, etc. pressure drops Parallel test pipeline, Duo Gezhi
Pipeline section testpieces and elbow testpieces.
Preferably, the pipe ranges uniform flow such as bores such as the pipe ranges such as bores such as 1/4Q flow uniform flow test section A, 1/4Q flow
The test of the pipe ranges uniform flows such as the bores such as pipe ranges uniform flow test section C and the 1/4Q flow such as bores such as test section B, 1/4Q flow
Pipeline section D is identical, including 4 etc. calibers, equivalent length, etc. pressure drops Parallel test pipeline, multiple straight pipe testpieces
And elbow testpieces.
Preferably, throughput and flow quantity are equal to the general gas flow of experimental rig and total in the bores test section such as Q flow
Flow quantity；The pipe ranges uniform flow test sections such as the bores such as the pipe ranges uniform flow test section such as bores such as 1/2Q flow and 1/4Q flow
The general gas flow of the experimental rig and total flow quantity are divided into 2 equal portions, 4 equal portions；Different tube diameters single test pipe and
3 kinds of flow velocitys of gas-liquid mixture can be obtained in Parallel test pipeline.
Preferably, the straight pipe testpieces, elbow testpieces and Zhi Ganliu threeway testpieces are different metal
The pipe fitting of material matrix or the inner surface of same metal material matrix pipe fitting can be nonmetallic anti-for different metal materials lining, difference
Sheath can get performance of the different guard technologies under gas-liquid mixture difference erosion corrosion flow velocity by these testpieces and compare examination
Test data.
Preferably, by pipe ranges uniform flow test sections such as the bores such as the bores such as Q flow test section, 1/2Q flow and
The pipe ranges uniform flow test section such as bores such as 1/4Q flow can obtain the erosion flow velocity to 3 kinds of gas-liquid delivery objects.
Extension ground, passes through the pipe ranges uniform flow developmental tubes such as the bores such as the bores straight line such as Q flow test section, 1/2Q flow
The pipe ranges uniform flow test sections, 1/ such as the bores such as pipe ranges uniform flow test section, the 1/8Q flows such as the bores such as section, 1/4Q flow
2nThe pipe ranges uniform flow test section such as bores such as Q flow, can theoretically obtain the erosion flow velocity of n kind gas-liquid delivery object, premise
It is that the wellhead back pressure value after rising is caused to be no more than License Value by the increase of experimental rig overall presure drop.
(3) beneficial effect
Equal portions flow-type multistage flow velocity multiphase pipeline erosion field test device provided by the invention, operation simple with structure
The advantages that managing convenient, safe and reliable to operation and low investment.
Detailed description of the invention
Fig. 1 is equal portions of embodiment of the present invention flow-type multistage flow velocity multiphase pipeline erosion field test device.
1: oil/gas well；2: gathering line；3: by-passing valve；4: inlet valve；5: inlet pipeline；The test of the bores such as 6:Q flow
Pipeline；The pipe ranges uniform flow test section such as bores such as 7:1/2Q flow A；The test of the pipe ranges uniform flow such as bores such as 8:1/2Q flow
Pipeline section B；9: level-one split point；10,12: second level split point；The pipe ranges uniform flow test section such as bores such as 11:1/4Q flow A；
The pipe ranges uniform flow test section such as bores such as 13:1/2Q flow；B；The pipe ranges uniform flow test section such as bores such as 14:1/2Q flow
C；The pipe ranges uniform flow test section such as bores such as 15:1/2Q flow D；16: confluence；17, the confluence 18: Zhi Ganliu；9: backhaul
Pipeline；20: outlet valve；21: oil gas well production metering device；22: straight pipe testpieces；23: elbow testpieces；24: Zhi Ganliu
Threeway testpieces A；25: Zhi Ganliu threeway testpieces B.
Specific embodiment
It is as follows that the following describes the present invention in detail with reference to the accompanying drawings and embodiments.
As shown in Figure 1, the present invention provides a kind of equal portions flow-type multistage flow velocity multiphase pipeline erosion field test device,
It include: a kind of equal portions flow-type multistage flow velocity multiphase pipeline erosion field test device characterized by comprising
The bores straight line such as oil/gas well 1, gathering line 2, by-passing valve 3, inlet valve 4, inlet pipeline 5,1Q flow test section 6,1/
The pipe ranges uniform flow test section B8, level-one such as the bores such as pipe ranges uniform flow test section A7,1/2Q flow such as bores such as 2Q flow
The pipe ranges uniform flow test section A11, second level split point 12,1/4Q such as the bores such as split point 9, second level split point A10,1/4Q flow
Pipe ranges uniform flow test section C14, the 1/4Q such as the bores such as pipe ranges uniform flow test section B13,1/4Q flow such as bores such as flow
The pipe ranges uniform flow test section such as bores such as flow D15, return conduits 19, outlet valve 20, oil gas well production metering device 21, branch
Mainstream threeway testpieces A24, Zhi Ganliu threeway testpieces B25,
1 well head of oil/gas well is connect with 2 one end of gathering line, and 2 other end of gathering line passes through the connection of by-passing valve 3 all the way
Built oil gas well production metering device 21, another way are connected to 5 one end of inlet pipeline of erosion test device by inlet valve 4,
5 other end of inlet pipeline connects 6 one end of bores straight line test section such as 1Q flow, the bores straight line test section such as described 1Q flow
6 include multiple straight pipe testpieces 22 and elbow testpieces 23；The connection of 6 other end of the bores straight line such as described flow test section
The pipe ranges such as the bores such as the identical 1/2Q flow of specification are connected on level-one split point 9 and through level-one split point 9
One end of the pipe ranges uniform flow test section B8 such as the bores such as one end of uniform flow test section A7 and 1/2Q flow；
The other end of the pipe ranges uniform flow test section such as bores such as 1/2Q flow A7 is by multiple straight pipe testpieces 22, curved
Head testpieces 23 is connected on second level split point 12, and by second level split point 12 respectively with the pipe ranges such as bores such as 1/4Q flow etc.
The one end the pipe ranges uniform flow test section D15 such as bores such as the one end flow velocity test pipe B13,1/4Q flow is connected；
Multiple straight pipe testpieces 22, elbow are passed through in one end of the pipe ranges uniform flow test section such as bores such as 1/2Q flow B8
Testpieces 23 is connected on second level split point 10, and by second level split point 10 respectively with the stream such as pipe ranges such as bores such as 1/4Q flow
The one end the pipe ranges uniform flow test section C14 such as bores such as the one end fast test pipe A11,1/4Q flow is connected；
The stream such as pipe ranges such as the bores such as the pipe ranges uniform flow test section A11 such as bores such as the 1/4Q flow other end, 1/4Q flow
The fast test section C14 other end is connected to Zhi Ganliu threeway examination by multiple straight pipe testpieces 22, elbow testpieces 23 respectively
It tests on the import A of part 24, the other end of the pipe ranges uniform flow such as bores such as described 1/4Q flow test section 13 is by multiple straight
Pipeline section testpieces 22, elbow testpieces 23 are connected in the import of Zhi Ganliu threeway testpieces A24, the Zhi Ganliu threeway examination
The outlet for testing part A24 is connected in the import of Zhi Ganliu threeway testpieces B25 by pipeline, the pipe such as bores such as described 1/4Q flow
Long 15 other end of uniform flow test section is connected to Zhi Ganliu threeway examination by several straight pipe testpieces 22, elbow testpieces 23
It tests in the import of part B25, the outlet of the Zhi Ganliu threeway testpieces B25 is connect with return conduits 19 with one end, return duct
The road other end is connected on oil gas well production metering device 21 through outlet valve 20.
Wherein, the bores straight line test section such as described Q flow include single test pipe, multiple straight pipe testpieces 22 with
And elbow testpieces 23.The pipe ranges such as the bores such as the pipe ranges such as bores such as 1/2Q flow uniform flow test section A7 and 1/2Q flow
Uniform flow test section B8 is identical, including 2 etc. calibers, equivalent length, etc. pressure drops Parallel test pipeline, Duo Gezhi
Pipeline section testpieces 22 and elbow testpieces 23.Pipe ranges uniform flow test section A11,1/4Q flow such as bores such as 1/4Q flow etc.
Pipe ranges uniform flow test section C14 and 1/4Q flows such as the bores such as pipe ranges uniform flow test section B13,1/4Q flow such as bore etc.
The pipe ranges uniform flow test section such as bore D15 is identical, including 4 etc. calibers, equivalent length, etc. pressure drops Parallel test
Pipeline, multiple straight pipe testpieces 22 and elbow testpieces 23.
The pipe ranges uniform flow developmental tubes such as the bores such as the pipe ranges uniform flow test section such as bores such as 1/2Q flow and 1/4Q flow
The general gas flow of the experimental rig and total flow quantity are divided into 2 equal portions, 4 equal portions by section, in the single test pipe of different tube diameters
With 3 kinds of flow velocitys for obtaining gas-liquid mixture in Parallel test pipeline.
The straight pipe testpieces 22, elbow testpieces 23 and Zhi Ganliu threeway testpieces are different metal material
Matter, inner surface different metal or different nonmetallic protective layers, can get different guard technologies in gas-liquid mixed by these testpieces
Performance comparison test data under object difference erosion corrosion flow velocity.
Pass through the pipe ranges uniform flow test sections and 1/ such as the bores such as the bores straight line such as Q flow test section, 1/2Q flow
The pipe ranges uniform flow test section such as bores such as 4Q flow can obtain the erosion flow velocity to 3 kinds of gas-liquid delivery objects.
Pass through the pipe ranges uniform flow test sections and 1/ such as the bores such as the bores straight line such as Q flow test section, 1/2Q flow
The pipe ranges uniform flow test section such as bores such as 4Q flow, than the different bore long-range strings under identical total gas-liquid flow with sample flow velocity
Receipts or other documents in duplicate root test pipe, caliber can reduce by 2-3 magnitude, and testpieces, which lays quantity, can increase 1-2 times, with low investment and convenient for collecting
Middle management.
The embodiment of the present invention has a characteristic that
1, full duct type experimental rig structure type
Entire experimental rig is all formed by pipeline construction, the built oil gas well production in addition to oil gas field production scene is utilized
Outside metering device, without ad hoc gas-liquid separator, air-flow meter, flow meters and its matching instrument, process flow is succinct, investment
It saves.
2, equal portions flow shunt multistage flow velocity experimental condition building mode
Dexterously using 2 equal calibers, equal length parallel pipeline etc. pressure drops, etc. flows principle, by the gas-liquid from oil/gas well
Mixture flow rate is divided into 2 equal portions, 4 equal portions, changes the method for flow velocity by changing caliber, throughput be not arranged specially
Meter, flow meters and just with the general gas flow obtained by built oil gas well production metering device, under conditions of total flow quantity,
3 or 3 or more multistage flow velocitys have been obtained, gas-liquid mixture erosion corrosion test available, reliable, can be steady in a long-term is created
Condition.
3, long-term uninterrupted safety and steady test run mode
In addition to the built oil gas well production metering device in oil gas field production scene, without with movement in experimental rig of the invention
Air-flow meter, the flow meters of component, will not generate hinder gas-liquid mixture smooth outflow failure and maintenance, troublesome maintenance with
And the security risk that builds the pressure as caused by silt blocked portion rotary type instrument, even if in the built gas well yield metering dress in experimental rig end
When setting middle rotary type flow-meter and breaking down, still the metering device can be crossed by built by-passing valve, make the present invention
Experimental rig run without interruption, being destroyed property does not terminate the test of the duration that has carried out.
The following detailed description of the meaning in component and element involved in the embodiment of the present invention once:
Oil/gas well 1 produces natural gas, crude oil or condensed liquid, contains oil and water in crude oil or condensed liquid, wherein oil and water general designation
For liquid；The product of oil/gas well is also known as gas-liquid mixture.
Gathering line 2, the gas-liquid mixture that conveying oil/gas well produces to gathering station, is equipped with metering device in gathering station,
Gas production, the Liquid output the measure of production of single oil gas well can be carried out, the product of oil/gas well is finally delivered at oil gas through gathering station
Manage factory.
By-passing valve 3, when closing this valve, the product of oil/gas well can enter experimental rig；When opening this valve, oil/gas well
Product transports to gathering station.
The bores such as Q flow test pipe 6, using the test section of caliber same as gathering line, and its pipe gas transmission liquid stream
Amount is equal to the flow Q of gathering line, i.e. the flow of oil gas well effluent, and it is also equal with gathering line to manage defeated flow velocity, obtains a kind of pipe
Defeated flow velocity V1.It is equipped with multiple straight pipe testpieces, elbow testpieces in the pipeline section, establishes the experimental condition of flow velocity V1.
The pipe ranges uniform flow such as bores such as 1/2Q flow test pipe 7 and 8, with the branch line knot of 2 equal bores equal lengths
Q flow is divided into 2 1/2Q flows by configuration formula, and 1/2Q flow and a kind of defeated stream of pipe are obtained in each single branch line
Fast V2.It is equipped with multiple straight pipe testpieces, elbow testpieces in this 2 branch lines, establishes the experimental condition of flow velocity V2.
Level-one split point 9, by Q flow shunt at 2 1/2Q flows, second level split point 10 and 12, by 1/2Q flow shunt
At 2 1/4Q flows.
The pipe ranges uniform flow such as bores such as 1/4Q flow test section 11,14,13,15, with the branch of 2 equal bores equal lengths
1/2Q flow is divided into 2 1/4Q flows by pipeline structure form, and obtain in each single branch line 1/4Q flow and
The 1 defeated flow velocity V3 of pipe.It is equipped with multiple straight pipe testpieces, elbow testpieces in this 2 branch lines, establishes the test of flow velocity V3
Condition.
The confluence 1/2Q flow Zhi Ganliu 17 establishes 1 1/4Q flow branch pipeline and enters 1/2Q traffic tunnel pipeline
Threeway fluidal texture；The confluence the 3/4Q flow Zhi Ganliu confluence Zhi Ganliu 18: 1 1/4Q flow branch pipeline is established into 3/
The threeway fluidal texture of 4Q traffic tunnel pipeline.
Return conduits 19 will flow out defeated time gathering line of whole oil gas well effluents of test section
Straight pipe testpieces 22: the erosion corrosion for carrying out straight pipe is tested；Elbow testpieces: for carrying out rushing for elbow piece
Brush corrosion test；When the medium that Zhi Ganliu threeway testpieces 24 and 25 is used to carry out in lateral enters in main pipeline medium
Erosion corrosion test at three-way piece.
The following detailed description of the normal work of equal portions flow-type multistage flow velocity multiphase pipeline erosion field test device once
Process:
Inlet valve 4, outlet valve 19 are opened, by-passing valve 3 is closed.
The gas-liquid mixture of 1 output of oil/gas well enter after gathering line 2 by inlet valve 4 enter erosion test device into
Mouth pipeline 5, then enters the bores test sections 6 such as Q flow, if gas-liquid mixture flows through in the bores such as Q flow test section 6
Dry straight pipe testpieces 22 and elbow testpieces 23 can carry out the erosion test with the equal calibers of gathering line 2, uniform flow；Gas-liquid
Mixture continues after flowing to level-one split point 9, the flow shunts such as carries out through pipe ranges test sections 7,8 such as 2 equal bores, can make this
The flow of 2 test sections respectively reaches 1/2Q, and flow velocity is also equal.The caliber for reducing test section 7,8, can be obtained higher
Erosion test flow velocity, since 2 root canal diameters are in parallel, will not be caused improving flow velocity the defeated pressure drop of pipe it is excessive, more than License Value, shadow
Oil/gas well is rung normally to produce；Gas-liquid mixture flows through several straight pipe testpieces 22 in the pipe ranges test sections 7,8 such as equal bores
With several elbow testpieces 23, it can be achieved that carrying out the erosion test for being higher than the defeated flow velocity of Q flow down tube under 1/2Q flow, to obtain
Obtain the 2nd kind of test flow velocity of flow velocity under different 1Q flows.Gas-liquid mixture continues after flowing to second level split point 10,12, respectively through 4
The pipe ranges such as bores such as root test section 11,14 and 13,15 such as carries out at the flow shunts, and the flow of this 4 test sections can be made to distinguish
Reach 1/4Q, flow velocity is also equal.The caliber for reducing test section 11,14 and 13,15, can be obtained higher erosion test stream
Speed.Due to the parallel connection of 4 root canal roads, and the defeated pressure drop of pipe is controlled by suitably shortening pipe range, can ensure that oil/gas well normally produces.Gas-liquid
Mixture flow is through several straight pipe testpieces 22, the elbow testpieces in the pipe ranges test sections 11,14 and 13,15 such as equal bores
23 under 1/4Q flow, it can be achieved that carry out the erosion test for being higher than the defeated flow velocity of 1/2Q flow down tube, to obtain different from Q flow
3rd kind of test flow velocity of lower flow velocity.The gas-liquid mixture for flowing through the pipe ranges test sections 11,14 such as equal bores is pooled to confluence 16
Later, flow increases to 1/2Q, enters Zhi Ganliu threeway testpieces A24 and 1/ from pipe ranges test sections 13 such as grade bores
The gas-liquid mixture of 4Q flow into threeway testpieces 24, and makes gas-liquid mixture at the confluence 1/2Q flow Zhi Ganliu 17
T shape three-way piece midpoint and thereafter the flow in pipeline section reaches 3/4Q, enter to establish 1 1/4Q flow branch pipeline
The threeway fluidal texture of 1/2Q traffic tunnel pipeline can carry out the three-way piece erosion test of a kind of service main velocity ratio.Similarly, come
From the gas-liquid mixture of the 1/4Q flows of the pipe ranges test sections 15 such as equal bores at the confluence 3/4Q flow Zhi Ganliu 18, enter
Threeway testpieces B25, and make gas-liquid mixture in the midpoint of T shape three-way piece and thereafter the flow in pipeline section reaches Q, to build
Vertical 1 1/4Q flow branch pipeline enters the threeway fluidal texture of 3/4Q traffic tunnel pipeline, can carry out another a kind of service main flow velocity
The three-way piece erosion test of ratio.After gas-liquid mixture enters backhaul pipeline section 19, reach the initial production flow Q of oil/gas well, then
Gathering line 2 is returned through outlet valve 20, and enters the built oil gas well gauging of oil gas field gathering system through the trunk pipeline
Device 21 obtains gas production, the Liquid output of oil/gas well.The sum of the gas production of oil/gas well and Liquid output are defined as Q by the present invention, whole
A erosion test device everywhere 1 atmospheric pressure of standard state in pipeline, gas liquid ratio is constant at 20 DEG C.
In addition, process is as follows when experimental rig stops working:
By-passing valve 3 is opened, inlet valve 4, outlet valve 20 are closed.
The gas-liquid mixture of 1 output of oil/gas well enters built oil gas well production metering device 21 through gathering line 2, final defeated
To oil vapor treatment factory.
Equal portions flow-type multistage flow velocity multiphase pipeline erosion field test device provided in an embodiment of the present invention has as follows
Advantage:
(1) it compared with building the experimental rig of same scale and function using routine techniques, after applying the present invention, saves engineering and throws
It provides up to 40% or more.
(2) establish 3 grades and test flow velocity without direct metering method erosion corrosion: 3m/s, 6m/s, 10m/s cover reality
In production≤flow rates of 10 m/s, enough erosion corrosion speed differences of 3 m/s, 4 m/s, 7 m/s are obtained, to be had
The test data of value creates condition.
(3) more than 100 days fault-frees, uninterrupted, long-term continuous service are realized.
Embodiment 1:
It is built using the present invention in Tarim Basin gas condensate field and a set of multiphase transportation pipeline with 3 grades of flow velocitys that put into operation washes away
Corrode field test device, device design pressure 16MPa, 80 DEG C of design temperature, practical gas discharge 56 × 104 m3/ d,
Gas liquid ratio 10000m3/m3。
1, experimental rig overview
Erosion corrosion test device construction project investment using 2,140,000 yuan of conventional techniques by having been dropped using the technology of the present invention
1,250,000 yuan of scheme, cost saving 41.6%；Reached 3 grades of test flow velocitys: 2.9m/s, 5.6m/s, 10m/s are obtained
2.7 m/s, 4.4 m/s, the erosion corrosion test speed of 7.1 m/s are poor；Naked steel pipe, titanium nano ceramic coat pipe, titanium are carried out
6 kinds of straight pipe test pipe fittings such as nanometer polymer coated pipe, epoxy powder coating pipe and 1D~6D elbow testpieces, reducing three
The erosion corrosion test of logical testpieces；More than 120 days of fault-free, uninterrupted, continuous service, have obtained step-by-step test result.
Different tube diameters test pipe fitting specification and flow velocity
2, test result
(1) naked steel-inner surface steel body without any protective layer is stripped, and has erosion groove；
(2) titanium nano ceramic coat pipe -- coating is intact；
(3) nm-class Ti polymer coated pipe -- coating is seriously removed.
The above embodiments are only used to illustrate the present invention, and not limitation of the present invention, in relation to the common of technical field
Technical staff can also make a variety of changes and modification without departing from the spirit and scope of the present invention, therefore all
Equivalent technical solution also belongs to scope of the invention, and scope of patent protection of the invention should be defined by the claims.
Claims (7)
1. a kind of equal portions flow-type multistage flow velocity multiphase pipeline erosion field test device characterized by comprising
The bores test sections such as oil/gas well (1), gathering line (2), by-passing valve (3), inlet valve (4), inlet pipeline (5), Q flow
(6), the pipe ranges uniform flow such as bores such as 1/2Q flow test section A(7), the pipe ranges uniform flow test section such as bores such as 1/2Q flow
B(8), level-one split point (9), second level split point A(10), the pipe ranges uniform flow test section A(11 such as bores such as 1/4Q flow), two
The pipe ranges uniform flow such as bores such as fraction flow point (12), 1/4Q flow test section B(13), the stream such as pipe ranges such as bores such as 1/4Q flow
Fast test section C(14), the pipe ranges uniform flow test section D(15 such as bores such as 1/4Q flow), return conduits (19), outlet valve
(20), oil gas well production metering device (21), Zhi Ganliu threeway testpieces A(24), Zhi Ganliu threeway testpieces B(25),
Oil/gas well (1) well head is connect with gathering line (2) one end, and gathering line (2) other end is all the way by bypass
Valve (3) connects built oil gas well production metering device (21), another way by inlet valve (4) be connected to erosion test device into
Mouth pipeline (5) one end, inlet pipeline (5) other end connect bores test section (6) one end such as Q flow, the bores such as described Q flow
Test section (6) includes multiple straight pipe testpieces (22) and elbow testpieces (23)；The test of the bores straight line such as described flow
Pipeline section (6) other end is connected on level-one split point (9) and to be connected to specification identical by level-one split point (9)
The pipe ranges uniform flow such as bores such as 1/2Q flow test section A(7) one end and the pipe ranges uniform flow such as bores such as 1/2Q flow test
Pipeline section B(8) one end；
The pipe ranges uniform flow such as bores such as 1/2Q flow test section A(7) the other end pass through multiple straight pipe testpieces
(22), elbow testpieces (23) is connected on second level split point (12), and by second level split point (12) respectively with 1/4Q flow
The pipe ranges uniform flow test pipe B(13 such as equal bores) the pipe ranges uniform flow test section D(15 such as bores such as one end, 1/4Q flow) one
End is connected；
The pipe ranges uniform flow such as bores such as 1/2Q flow test section B(8) one end by multiple straight pipe testpieces (22),
Elbow testpieces (23) is connected on second level split point (10), and by second level split point (10) respectively with the bores such as 1/4Q flow
Equal pipe ranges uniform flow test section A(11) the pipe ranges uniform flow test section C(14 such as bores such as one end, 1/4Q flow) one end is connected
It connects；
The pipe ranges uniform flow such as bores such as 1/4Q flow test section A(11) pipe ranges such as bores such as the other end, 1/4Q flow etc.
Flow velocity test section C(14) other end passes through multiple straight pipe testpieces (22) respectively, elbow testpieces (23) is connected to branch
Flow threeway testpieces (24) import A on, the pipe ranges uniform flow test section such as bores such as described 1/4Q flow (13) it is another
End is connected to Zhi Ganliu threeway testpieces A(24 by multiple straight pipe testpieces (22), elbow testpieces (23)) import on,
The Zhi Ganliu threeway testpieces A(24) outlet Zhi Ganliu threeway testpieces B(25 is connected to by pipeline) import on,
Pipe ranges uniform flow test pipe (15) other end such as bores such as the 1/4Q flow passes through several straight pipe testpieces (22), elbow
Testpieces (23) is connected to Zhi Ganliu threeway testpieces B(25) import on, the Zhi Ganliu threeway testpieces B(25) go out
Mouth is connect with return conduits (19) with one end, and the return conduits other end is connected to built oil gas well gauging through outlet valve (20)
On device (21).
2. equal portions flow-type multistage flow velocity multiphase pipeline erosion field test device as described in claim 1, which is characterized in that
The bores test sections such as the Q flow include single test pipe, multiple straight pipe testpieces (22) and elbow testpieces
(23).
3. equal portions flow-type multistage flow velocity multiphase pipeline erosion field test device as described in claim 1, which is characterized in that
The pipe ranges uniform flow such as bores such as 1/2Q flow test section A(7) with the pipe ranges uniform flow developmental tube such as bores such as 1/2Q flow
Section B(8) it is identical, including 2 etc. calibers, equivalent length, etc. pressure drops Parallel test pipeline, multiple straight pipe testpieces
(22) and elbow testpieces (23).
4. equal portions flow-type multistage flow velocity multiphase pipeline erosion field test device as described in claim 1, which is characterized in that
The pipe ranges uniform flow such as bores such as 1/4Q flow test section A(11), the pipe ranges uniform flow test section B such as bores such as 1/4Q flow
(13), the pipe ranges uniform flow such as bores such as 1/4Q flow test section C(14) and the pipe ranges uniform flow test such as bores such as 1/4Q flow
Pipeline section D(15) it is identical, including 4 etc. calibers, equivalent length, etc. pressure drops Parallel test pipeline, multiple straight pipes examination
Test part (22) and elbow testpieces (23).
5. equal portions flow-type multistage flow velocity multiphase pipeline erosion field test device as claimed in claim 4, which is characterized in that
The pipe ranges uniform flow such as bores such as the pipe ranges uniform flow test section such as bores such as 1/2Q flow and 1/4Q flow test section is described in
The general gas flow of experimental rig and total flow quantity are divided into 2 equal portions, 4 equal portions, in the single test pipe and and joint-trial of different tube diameters
3 kinds of flow velocitys that gas-liquid mixture can be obtained are tested in pipeline.
6. equal portions flow-type multistage flow velocity multiphase pipeline erosion field test device as claimed in claim 4, which is characterized in that
The inner surface of the straight pipe testpieces (22), elbow testpieces (23) and Zhi Ganliu threeway testpieces can be different metal material
Matter, different nonmetallic protective layers, can get different guard technologies in gas-liquid mixture difference erosion corrosion stream by these testpieces
Performance comparison test data under speed.
7. equal portions flow-type multistage flow velocity multiphase pipeline erosion field test device as described in claim 1, which is characterized in that
Pass through the bores such as pipe ranges uniform flow test section and 1/4Q flow such as bores such as the bores such as Q flow test section, 1/2Q flow
Equal pipe ranges uniform flow test section can obtain the erosion flow velocity to 3 kinds of gas-liquid delivery objects.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810926970.2A CN108982345B (en) | 2018-08-15 | 2018-08-15 | Equal-flow-quantity type multistage-flow-velocity mixed transportation pipeline erosion field test device |
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|---|---|---|---|
| CN201810926970.2A CN108982345B (en) | 2018-08-15 | 2018-08-15 | Equal-flow-quantity type multistage-flow-velocity mixed transportation pipeline erosion field test device |
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| CN108982345B CN108982345B (en) | 2021-03-09 |
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| CN108982345B (en) | 2021-03-09 |
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