CN109856036A - A kind of high temperature and pressure gas, liquid, solid three-phase erosion corrosion test device and method - Google Patents
A kind of high temperature and pressure gas, liquid, solid three-phase erosion corrosion test device and method Download PDFInfo
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- CN109856036A CN109856036A CN201811610143.9A CN201811610143A CN109856036A CN 109856036 A CN109856036 A CN 109856036A CN 201811610143 A CN201811610143 A CN 201811610143A CN 109856036 A CN109856036 A CN 109856036A
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Abstract
The invention discloses a kind of high temperature and pressure gas, liquid, solid three-phase erosion corrosion test device and methods, experimental rig includes the high temperature and pressure test case for accessing loop test circuit, circulation line is equipped with circulating pump, electromagnetic mixing apparatus, temperature-sensing probe and pressure sensor are provided on the case lid of the high temperature and pressure test case, the electromagnetic mixing apparatus, temperature-sensing probe and pressure sensor are connect with control system；Corrosion test unit and electro-chemical test unit are set in the loop test circuit；Transparent window, observable tube fluid fluidised form are set in the loop test circuit.The positive effect of the present invention is: can simulate field working conditions environment, simulate corrosion condition of the metal material in pipeline, simulate gas, liquid, solid three-phase erosion corrosion test, a variety of corrosion tests such as electrochemical test, corrosion inhibiter assessment, rubber and plastics correlation are carried out, the online corrosion test of homogeneous tube of metal material and nonmetallic materials can also be carried out.
Description
Technical field
The invention belongs to corrosion field more particularly to a kind of high temperature and pressure gas, liquid, solid three-phase erosion corrosion test device and
Method can simulate trandfer fluid under oil gas field field working conditions environmental condition and wash away to pipeline and corrosion condition, can be used for studying
Erosion corrosion, electrochemical corrosion under gas, liquid, solid three-phase fluid flox condition, can be used for testing corrosion inhibiter performance, coating
Energy, metal and nonmetallic materials corrosion resisting property etc., observable fluid flow state can carry out the testing of materials and also carry out pipeline section test.
Background technique
Erosion corrosion is the metal damage phenomenon due to caused by relative motion between metal surface and corrosive fluid, is
Material is washed away with Corrosion Interaction as a result, being widely present in the production fields such as petroleum, chemical industry, be a kind of harmfulness compared with
Big local corrosion.Erosion corrosion is a sufficiently complex process, influences many because being known as of corrosion rate, specifically includes that
Flow rate of liquid, fluid silt content, grains of sand size, wash away angle, fluid pH value, solution temperature, the composition of material, material microcosmic knot
Structure and heat treating regime etc..In order to effectively solve the problems, such as erosion corrosion, so that the selection and taking for safeguard procedures for material mention
For foundation, it is thus necessary to determine that prevailing failure mechanism in erosion corrosion.Researchers at home and abroad have successively been carried out largely
The mechanism of action and governing factor of erosion corrosion have been inquired into research work by means such as experimental study and numerical simulations.At present
Indoor erosion corrosion test device, gas-liquid two-phase, gas-particle two-phase or liquid-solid two-phase can only be simulated and washed away, to gas, liquid, solid three-phase
The report of erosion corrosion test device is few, and usually all contains gas, liquid, solid three-phase in oil gas field existing site fluid, therefore at present
Indoor two-phase simulated flow test result and the erosion corrosion result difference under live actual condition are larger.How to accomplish that interior is washed away
Corrosion behavior is similar to scene and how to be gone to instruct the live long-term operation problem still with the experimental result of short time
Up for further solving.
Summary of the invention
The shortcomings that in order to overcome the prior art, the present invention provides a kind of high temperature and pressure gas, liquid, solid three-phase erosion corrosion examinations
Experiment device and method, can simulate field working conditions environment, and corrosion condition of the simulation material in the pipeline of oil gas field scene is carried out
Erosion corrosion test, electrochemical test, corrosion inhibiter assessment, rubber and plastics associated materials when gas, liquid, solid three-phase fluid coexists
The test of the multiple indoors such as performance test can also carry out the homogeneous tube erosion corrosion test of metal material and nonmetallic materials.
The technical scheme adopted by the invention is that: a kind of high temperature and pressure gas, liquid, solid three-phase erosion corrosion test device, packet
High temperature pressure corrosion chamber, circulation line and circulating pump are included, is provided with electromagnetism on the case lid of the high temperature and pressure test case
Agitating device, temperature-sensing probe, pressure sensor, relief valve and high pressure gas injected system, the electromagnetic mixing apparatus, temperature-sensitive are visited
Head, pressure sensor and relief valve are connect with control system；Transfer tube, corrosion test list are provided in the circulation line
Member and electro-chemical test unit.
The high pressure gas injected system of the high temperature pressure corrosion chamber include by the sequentially connected gas cylinders group of pipeline,
Flow control valve and booster pump.Relief valve on the high temperature pressure corrosion chamber case lid, pressure release rate can be in 0MPa/
Stepless speed regulation between min~10MPa/min.In the high temperature and pressure test case case with test fluid contact portion in addition to case lid
Metal surface be sprayed with the wear-resisting erosion resistance coatings of resistance to 150 DEG C of temperatures above.Outside the cabinet of the high temperature and pressure test case
Portion is provided with electric heating cover, and temperature-controlled precision reaches ± 2 DEG C.The high temperature and pressure erosion corrosion test device, internal highest test
Pressure reaches 35MPa, and highest test temperature reaches 150 DEG C, and liquid peak flow rate (PFR) reaches 8m/s.
The circulating pump is placed on circulation line, it can be achieved that air-liquid and following no more than 10% sand grains of mass percent
Circulation is dynamic.The circulation line is made of the connection of multistage pipeline section, flanged joint or welding between pipeline section.The pipeline section includes corrosion
It tests in pipeline section, corrosion monitoring pipeline section, pipeline material test section, the pipeline section that tests the speed, transparent window observation pipeline section and connection pipeline section
One or more combinations.
The present invention also provides a kind of high temperature and pressure gas, liquid, solid three-phase erosion corrosion test methods, include the following steps:
Step 1: connecting cyclic test pipeline, the case lid of corrosion test chamber is unloaded, corrosion test liquid, sand grains are pressed
The ratio of test requirements document is added in corrosion test chamber under nitrogen protection, then covers case lid；
Step 2: starting heating mantle heats pass through gas handling system and the repeated multiple times pressurization of booster pump to predetermined test temperature
To setting test pressure；
Step 3: starting circulating pump and regulation power to reach the flow velocity that test needs；After reaching the test period, closes and add
Hot pressurization valve opens exhaust outlet, corrosivity gas field is passed through exhaust treatment system, pressure opens corrosion test after dropping to normal pressure
The case lid of case, and leakage fluid dram is opened, the liquid after test is discharged to liquid waste treatment system, takes out test section and test sample,
Detergent line simultaneously dries up.
Compared with prior art, the positive effect of the present invention is:
(1) it is coated with the corrosion-inhibiting coating of corrosion resistant, wear resistant and high temperature resistant inside high temperature and pressure test case, protects inner wall to greatest extent not
It can be by erosion.
(2) circulation line can simulate the corrosive environment of gas, liquid, solid three-phase flow to greatest extent, can simulate metal material simultaneously
Electrochemical corrosion, erosion corrosion, corrosion inhibiter effect, rubber and the anti-corrosion abrasion resistance of plastics corrosion resisting property, coating in pipeline
A variety of tests such as energy.
(3) device can also carry out the online corrosion test of homogeneous tube of metal material and nonmetallic materials, multiple functions pipeline section
Independent assortment.
(4) temperature sensing device, electromagnetic flowmeter and flow control valve, flow control valve and electromagnetic current are installed on pipeline
Meter interlocking, can show the flow in circulation line and the flow on pipeline is adjusted.
(5) relief valve is housed on high temperature and pressure test case case lid, it can be achieved that process control rate is depressured, for studying rubber
It is a quantum jump on research technique with the anti-gas quick pressure releasing performance of plastics and coating.
Detailed description of the invention
Examples of the present invention will be described by way of reference to the accompanying drawings, in which:
Fig. 1 is that a kind of high temperature and pressure is recycled online corrosion testing apparatus.
Specific embodiment
A kind of high temperature and pressure gas, liquid, solid three-phase erosion corrosion test device, as shown in Figure 1, comprising: gas handling system 1, stream
Adjustable valve 2, booster pump 3, electromagnetic mixing apparatus 4, pressure sensor 5, temperature sensor 6, controlling terminal 7, exhaust outlet 8, examination
Test pipeline section 9, pipe flange 10, circulating pump 11, form pipeline section 12, corrosion test pipeline section 13, monitoring pipeline section 14, thermo detector 15, corrosion
The composition such as probe 16, flowmeter 17, corrosion test chamber 18, heating mantle 19, leakage fluid dram 20, in which:
Connection is equipped with 1 pipeline of flow control valve 2 and 3 gas handling system of booster pump, exhaust outlet on the case lid of corrosion test chamber 18
8, the temperature and pressure of electromagnetic mixing apparatus 4 and pressure sensor 5, temperature sensor 6, corrosion test chamber 18 is whole by control
End 7 is controlled；Liquid, the sand grains of erosion corrosion test are directly added into corrosion test chamber 18, gas by gas handling system 1 into
Enter chamber and pipeline；The temperature of whole system is heated by heating mantle 19；Gas after test is discharged by exhaust outlet 8
To emission-control equipment；Solution after test is discharged to liquid waste treating apparatus by leakage fluid dram 20.The connection of cyclic test pipeline both ends
Corrosion test chamber 18；Test section 9, circulating pump 11, form pipeline section 12, corrosion test pipeline section are provided in cyclic test pipeline
13, pipeline section 14, thermo detector 15, corrosion probe 16, flowmeter 17 etc. are monitored；It is attached between pipeline section by pipe flange 10.It removes
Outside cyclic test pipeline, all metal materials contacted with test(ing) liquid, gas all use anti-H2The corrosion resistant alloy of S cracking, such as
Hastelloy C alloys -276.
The present invention also provides a kind of high temperature and pressure gas, liquid, solid three-phase erosion corrosion test methods, including following content:
As shown in Figure 1, connecting cyclic test pipeline when needing to carry out erosion corrosion test, unloading corrosion test chamber
Corrosion test liquid, sand grains are added in corrosion test chamber 18 18 case lids under nitrogen protection in the ratio of test requirements document.It covers
Case lid, starting heating mantle 19 are heated to predetermined test temperature, are pressurized to design by the way that gas handling system 1 and booster pump 3 are repeated multiple times
Test pressure.Start circulating pump 11, and regulation power is to reach the flow velocity that test needs.Fluid flow state can pass through form pipeline section 12
It is observed；Corrosion rate can be tested by corrosion test pipeline section 13 and corrosion probe 16, equipped with test material test piece
Bracket is fixed in corrosion test pipeline section 13；Temperature, flow velocity can be monitored by thermo detector 15 and flowmeter 17 in managing；Homogeneous tube
Test can the placement of the position as shown in test section 9 in figure.After reaching the test period, heating pressurization valve is closed, exhaust is opened
Corrosivity gas field is passed through exhaust treatment system by mouth 8, and pressure opens the case lid of corrosion test chamber 18 after dropping to normal pressure, and opens
Liquid after test is discharged to liquid waste treatment system by leakage fluid dram 20, takes out test section and test sample, detergent line are simultaneously blown
It is dry.
Claims (9)
1. a kind of high temperature and pressure gas, liquid, solid three-phase erosion corrosion test device, it is characterised in that: including corrosion test chamber and two
Hold the cyclic test pipeline being connected to corrosion test chamber；Induction system line, electromagnetism are connected on the case lid of corrosion test chamber
Agitating device, pressure sensor and temperature sensor are provided with heating mantle, the electromagnetic agitation on the shell of corrosion test chamber
Device, pressure sensor and temperature sensor pass through signal wire respectively and connect with controlling terminal；It is set in the cyclic test pipeline
It is equipped with pipeline material test section, circulating pump, corrosion test pipeline section, monitoring pipeline section, transparent window observation pipeline section and connection pipeline section.
2. a kind of high temperature and pressure gas, liquid, solid three-phase erosion corrosion test device according to claim 1, it is characterised in that:
Flow control valve and booster pump are provided on the induction system line.
3. a kind of high temperature and pressure gas, liquid, solid three-phase erosion corrosion test device according to claim 1, it is characterised in that:
Exhaust outlet is set on the case lid of corrosion test chamber, leakage fluid dram is set in the bottom of corrosion test chamber.
4. a kind of high temperature and pressure gas, liquid, solid three-phase erosion corrosion test device according to claim 1, it is characterised in that:
Thermo detector, corrosion probe and flowmeter are provided on the monitoring pipeline section.
5. a kind of high temperature and pressure gas, liquid, solid three-phase erosion corrosion test device according to claim 1, it is characterised in that:
It is attached or welds by pipe flange between each pipeline section.
6. a kind of high temperature and pressure gas, liquid, solid three-phase erosion corrosion test method, characterized by the following steps:
Step 1: connecting cyclic test pipeline, the case lid of corrosion test chamber is unloaded, by corrosion test liquid, sand grains by test
Desired ratio is added in corrosion test chamber under nitrogen protection, then covers case lid；
Step 2: starting heating mantle heats are set to predetermined test temperature by repeated multiple times be pressurized to of gas handling system and booster pump
Determine test pressure；
Step 3: starting circulating pump and regulation power to reach the flow velocity that test needs；After reaching the test period, closes heating and add
Pressure valve opens exhaust outlet, corrosivity gas field is passed through exhaust treatment system, pressure opens corrosion test chamber after dropping to normal pressure
Case lid, and leakage fluid dram is opened, the liquid after test is discharged to liquid waste treatment system, takes out test section and test sample, cleaning
Pipeline simultaneously dries up.
7. a kind of high temperature and pressure gas, liquid, solid three-phase erosion corrosion test method according to claim 6, it is characterised in that:
Bracket equipped with test material test piece is fixed in corrosion test pipeline section, homogeneous tube test is carried out using test section.
8. a kind of high temperature and pressure gas, liquid, solid three-phase erosion corrosion test method according to claim 6, it is characterised in that:
Fluid flow state is observed by form pipeline section；Corrosion rate is tested by corrosion test pipeline section and corrosion probe.
9. a kind of high temperature and pressure gas, liquid, solid three-phase erosion corrosion test method according to claim 6, it is characterised in that:
Temperature and flow velocity are monitored by thermo detector and flowmeter in pipeline.
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| CN201811610143.9A CN109856036A (en) | 2018-12-27 | 2018-12-27 | A kind of high temperature and pressure gas, liquid, solid three-phase erosion corrosion test device and method |
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| CN201811610143.9A CN109856036A (en) | 2018-12-27 | 2018-12-27 | A kind of high temperature and pressure gas, liquid, solid three-phase erosion corrosion test device and method |
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Cited By (11)
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| CN110243708A (en) * | 2019-06-04 | 2019-09-17 | 中海石油(中国)有限公司湛江分公司 | A method of test precoated sand flows wear intensity in deep sea special type environment |
| CN111077062A (en) * | 2019-12-18 | 2020-04-28 | 中国石油天然气集团有限公司 | Sleeve hole erosion test system and method |
| CN111141664A (en) * | 2019-12-31 | 2020-05-12 | 中海油惠州石化有限公司 | Corrosion inhibitor performance evaluation device and corrosion inhibitor performance evaluation method |
| CN111551464A (en) * | 2020-04-14 | 2020-08-18 | 中国石油天然气集团有限公司 | Accelerated test method for testing aging performance of non-metallic material for oil and gas transmission |
| CN111562188A (en) * | 2020-04-07 | 2020-08-21 | 北京博研中能科技有限公司 | High-pressure high-flow-rate circulation two-phase flow erosion rate experimental device and experimental method |
| CN111624153A (en) * | 2020-07-09 | 2020-09-04 | 西南石油大学 | Mountain region moisture pipeline gas-liquid two-phase flow corrosion test device |
| CN112082891A (en) * | 2019-06-14 | 2020-12-15 | 中国石油化工股份有限公司 | Erosion resistance test method for three-high oil-gas well throttle valve |
| CN112782065A (en) * | 2021-02-08 | 2021-05-11 | 哈尔滨工业大学 | Aging test device and method for simulating ultrahigh-temperature and high-pressure corrosion environment |
| CN112986037A (en) * | 2021-05-20 | 2021-06-18 | 西南石油大学 | Experimental device for simulating stratum sand production and eroding oil pipe column |
| CN113295604A (en) * | 2021-05-21 | 2021-08-24 | 中国石油化工股份有限公司 | Test device and test method for simulating dynamic corrosion of solid waste salt |
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| CN110243708A (en) * | 2019-06-04 | 2019-09-17 | 中海石油(中国)有限公司湛江分公司 | A method of test precoated sand flows wear intensity in deep sea special type environment |
| CN112082891A (en) * | 2019-06-14 | 2020-12-15 | 中国石油化工股份有限公司 | Erosion resistance test method for three-high oil-gas well throttle valve |
| CN111077062B (en) * | 2019-12-18 | 2023-08-22 | 中国石油天然气集团有限公司 | Casing hole erosion test system and method |
| CN111077062A (en) * | 2019-12-18 | 2020-04-28 | 中国石油天然气集团有限公司 | Sleeve hole erosion test system and method |
| CN111141664A (en) * | 2019-12-31 | 2020-05-12 | 中海油惠州石化有限公司 | Corrosion inhibitor performance evaluation device and corrosion inhibitor performance evaluation method |
| CN111562188A (en) * | 2020-04-07 | 2020-08-21 | 北京博研中能科技有限公司 | High-pressure high-flow-rate circulation two-phase flow erosion rate experimental device and experimental method |
| CN111551464A (en) * | 2020-04-14 | 2020-08-18 | 中国石油天然气集团有限公司 | Accelerated test method for testing aging performance of non-metallic material for oil and gas transmission |
| CN111624153A (en) * | 2020-07-09 | 2020-09-04 | 西南石油大学 | Mountain region moisture pipeline gas-liquid two-phase flow corrosion test device |
| CN112782065A (en) * | 2021-02-08 | 2021-05-11 | 哈尔滨工业大学 | Aging test device and method for simulating ultrahigh-temperature and high-pressure corrosion environment |
| CN112986037A (en) * | 2021-05-20 | 2021-06-18 | 西南石油大学 | Experimental device for simulating stratum sand production and eroding oil pipe column |
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| CN112986037B (en) * | 2021-05-20 | 2021-07-27 | 西南石油大学 | Experimental device for simulating stratum sand production and eroding oil pipe column |
| CN113295604A (en) * | 2021-05-21 | 2021-08-24 | 中国石油化工股份有限公司 | Test device and test method for simulating dynamic corrosion of solid waste salt |
| CN113295604B (en) * | 2021-05-21 | 2024-02-06 | 中国石油化工股份有限公司 | Test device and test method for simulating dynamic corrosion of solid waste salt |
| CN114062243A (en) * | 2021-11-15 | 2022-02-18 | 厦门大学 | Design method of long-acting liquid anti-corrosion layer of multiphase conveying pipeline |
| CN114062243B (en) * | 2021-11-15 | 2024-04-05 | 厦门大学 | Design method of long-acting liquid anti-corrosion layer of multiphase conveying pipeline |
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Application publication date: 20190607 |