CN109387336A - A kind of experimental rig and method for the identification of non-metallic seal sealing performance - Google Patents
A kind of experimental rig and method for the identification of non-metallic seal sealing performance Download PDFInfo
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- CN109387336A CN109387336A CN201811501789.3A CN201811501789A CN109387336A CN 109387336 A CN109387336 A CN 109387336A CN 201811501789 A CN201811501789 A CN 201811501789A CN 109387336 A CN109387336 A CN 109387336A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/06—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
Abstract
The invention discloses a kind of experimental rigs and method for the identification of non-metallic seal sealing performance, which includes: device noumenon, and internal to have cavity, cavities open is in device noumenon bottom；Device noumenon bottom is equipped with and the close-connected bottom cover of device noumenon；It is equipped with that there are the filling members in gap with device noumenon inner wall in the cavity, the gap between described device inner body wall and the side wall of filling member is equipped with non-metallic seal to be detected；The liquid injection port communicated with the cavity is equipped at the top of device noumenon；The bottom cover is equipped with for detecting whether there is the detection hole of leakage, also comprising several pressurizations pipeline, blowdown line, heating device, temperature measuring device and device for pressure measurement for being passed through gas.Experimental rig and method of the invention meets F.1.13.5.3 requirement of the standard to device experiment of ISO 10423:2009 annex, may be used in oil equipment well head and the device experiment of production tree.
Description
Technical field
The present invention relates to oil equipment industry designs to confirm field, and in particular to one kind is used for non-metallic seal leakproofness
The experimental rig and method that can be identified.
Background technique
In oil equipment industry,Type sealing ring (S sealing) in high pressure and can have big top clearance
In the case of work, be applied in the work of a variety of oil and natural gas industries.
S sealing is that the important non-metallic seal of fluid, product type specification are opened and closed in well head assembly and production tree equipment
Multiplicity, security reliability is most important, once S seal failure, will cause oily (gas) well drilling well or production stops, generate huge
Economic loss and safety accident, and will cause great environmental pollution etc..With the assembly of domestic petroleum well head and production tree equipment
The safety of product, the requirement of reliability is continuously improved in the increase of demand and outlet, users at home and abroad, is 2 to performance rate
The increase in demand of the product of grade.Oil majors need the Performance Testing to product before product purchasing in the world at present
Test performance is audited, and Performance Evaluation Test is completed to be the precondition purchased.Domestic petroleum enterprise is in the early stage of development
Performance Evaluation Test is not taken much count of, but after developing to certain scale, especially when with foreign petroleum company cooperation, performance
Qualification test is exactly precondition.Such as inlet channel Da Er, shell, Chevron, Kang Fei foreign oil enterprise supply chain, are being supplied
Most critical one is exactly properties of product qualification test in chain audit.
The test of S sealing device is a part of non-metal sealing PR2 Performance Testing, belongs to nonmetallic fluid compatibility examination
It tests, needs individually to be tested.S sealing device experimental design needs to meet ISO 10423:2009 annex F.1.13.5.3 standard
Requirement to device experiment.
At home in petroleum equipment enterprise, starting is than being the limited public affairs of beautiful diamond petroleum drilling and mining system engineering (Shanghai) earlier
Department, company establish Performance Testing experiment when being prepared to enter into shell global supply chain and Dao Daer global supply chain in 2008
Room, pervious performance test in 2008 are that commission Britain mole laboratory is tested, and expense is very expensive, later in shell work
With the help of Cheng Shi, the experience in British mole laboratory establishes the laboratory of oneself, starts independent innovational design oneself
Properties of product testing program and program, it is less desirable always in terms of Testing Software but by offshore company's technology blockage.
It with the development of domestic petroleum enterprise, goes abroad successively, but properties of product qualification test is always that a bottleneck is asked
Topic, although establishing the simple experiment room of oneself, is also weakened, even very much in terms of the scheme of performance test and test program
Some companies directly require to be tested according to standard clause, cause to design the product testing result failure met the requirements originally.
Also some domestic enterprises also use for reference the experience in beautiful diamond petroleum drilling and mining system engineering (Shanghai) Co., Ltd. laboratory, but in test side
It is in terms of case and test program or not mature enough, when being prepared to enter into the audit of foreign oil enterprise supply chain, always it is found very
More problems lead to not audit by supplier's chain.
For the status to current domestic petroleum enterprise, it is being familiar with beautiful diamond petroleum drilling and mining system engineering (Shanghai) Co., Ltd.
In the case where laboratory condition, S seal test device and its method are designed, enterprise can be equipped to domestic petroleum and existed
It offers reference or refers to when doing this aspect test.
Summary of the invention
The purpose of the present invention is overcoming the deficiencies of existing technologies, a kind of identification non-metallic seal is provided, especiallyWhether the sealing performance of type sealing ring or similar product meets the experimental rig and method of PR2 test requirements document.
In order to achieve the above object, the present invention provides a kind of test dresses for the identification of non-metallic seal sealing performance
Set, the experimental rig includes: device noumenon, internal to have cavity, cavities open is in device noumenon bottom；Device noumenon
Bottom is equipped with and the close-connected bottom cover of device noumenon；Equipped with there are the fillings in gap with device noumenon inner wall in the cavity
Part, the gap between described device inner body wall and the side wall of filling member are equipped with non-metallic seal to be detected；Device noumenon
Top is equipped with the liquid injection port communicated with the cavity, which is sealed by removable seal；On the bottom cover
Equipped with for detecting whether there is the detection hole of leakage, which connect with leak detection apparatus；In non-metallic seal
The cavity in portion communicates, for being passed through several pressurization pipelines of gas；The pressure release communicated with the cavity on non-metallic seal top
Pipeline；For heating the heating device of described device ontology；It is arranged on described device ontology, for measuring described device ontology
The temperature measuring device of internal temperature；And be arranged on described device ontology, for measuring non-metallic seal upper cavity pressure
The device for pressure measurement of power.
Preferably, the filling member is cylindrical body, the non-metallic seal is O-ring seals.
Preferably, the bottom cover is flange.
Preferably, the heating device includes the heating watt that described device outer body is arranged in.
Preferably, the temperature measuring device includes temperature sensor, the device for pressure measurement is passed comprising pressure
Sensor and pressure gauge.
Preferably, the experimental rig also includes: the test operation case outside the experimental rig is arranged in, with ventilation
Equipment is connected.
The present invention also provides a kind of test method of non-metallic seal sealing performance identification, this method uses such as right
It is required that the experimental rig described in any one of 1-6 for the identification of non-metallic seal sealing performance, the pressurization pipeline
For the first pressurization pipeline and the second pressurization pipeline, test method is comprised the steps of:
Step 1: by liquid injection port, liquid pilot medium is injected into the cavity on non-metallic seal top；
Step 2: opening the valve on the first pressurization pipeline, pressurization gas is passed through into the cavity on non-metallic seal top
Body makes it be pressurized to 300 ± 30psi, the valve being then shut off on the first pressurization pipeline；
Step 3, humid test is carried out, the humid test includes appointing for hot test, room temperature test and low-temperature test
Meaning a combination of one or more；
The hot test includes:
A: device noumenon is heated, is allowed to warm to 121 DEG C to 132 DEG C；
B: the valve on the second pressurization pipeline is opened, additional mechanical supercharging gas is passed through, is pressurized to 15000psi, in pressurization
In, test temperature is maintained at 121 DEG C to 132 DEG C；
C: after pressure is stablized, the dwell time is no less than 160 hours；Test temperature is maintained at 121 DEG C extremely in pressure maintaining period
132℃；Pressure drop cannot be greater than 500psi during pressure maintaining；
D: stop heating, cooling test device to room temperature；The valve on blowdown line is opened, by less than 1000psi/min
Speed carry out pressure release, until pressure be 0；
The room temperature test includes:
E: experimental rig is in room temperature, opens the valve on the second pressurization pipeline, is passed through additional mechanical supercharging gas, is pressurized to
15000psi；
F: pressure starts pressure maintaining after stablizing, and the dwell time is no less than 1 hour；Pressure drop cannot be greater than during pressure maintaining
500psi；
G: opening the valve on blowdown line, carries out pressure release by the speed less than 1000psi/min, until pressure is 0；
The low-temperature test includes:
H: it is cooled to experimental rig between -18 DEG C to -29 DEG C；
I: the valve of the second pressurization pipeline is opened, additional mechanical supercharging gas is passed through, suppresses to 15000psi, in pressurization
In, test temperature is maintained at -18 DEG C to -29 DEG C；
J: pressure maintaining, dwell time are no less than 1 hour；Pressure drop cannot be greater than 500psi during pressure maintaining；
K: opening the valve on blowdown line, carries out pressure release by the speed less than 1000psi/min, until pressure is 0；Make
Experimental rig completes experiment after being back to room temperature.
Preferably, the liquid pilot medium includes diesel oil and water；The pressurization gas includes: H2S, CO2 and
CH4, the additional mechanical supercharging gas include nitrogen.
Preferably, opening the valve on the second pressurization pipeline when pressure drop is greater than 500psi during pressure maintaining, being pressurized to
15000psi。
Preferably, further include the ontology gas pressure test for detecting the experimental rig air-tightness before carrying out step 1, this
Body gas pressure test method includes:
(1) into the water by experimental rig；
(2) it carries out step L: additional mechanical supercharging gas being passed through by the first pressurization pipeline and is suppressed to 15000psi；Ensure pressure
After stabilization, the dwell time is no less than 15 minutes, pressure release to 0；It is primary to repeat step L；
(3) whether there is the change rate of pressure during bubble generation and pressure maintaining during test in observation water.
The utility model has the advantages that
Experimental rig and method provided by the present invention for the identification of non-metallic seal sealing performance, realizes non-gold
Belong to the identification of the PR2 rank sealing performance of sealing element.Experimental design of the invention meets ISO10423:2009 annex
F.1.13.5.3 requirement of the standard to device experiment may be used in oil equipment well head and the device experiment of production tree.
Detailed description of the invention
Fig. 1 is the experimental rig structural schematic diagram for the identification of non-metallic seal sealing performance of the invention.
Specific embodiment
Below in conjunction with drawings and examples, the following further describes the technical solution of the present invention.
As shown in Figure 1, the present invention provides a kind of experimental rig for the identification of non-metallic seal sealing performance, the examination
Experiment device mainly forThe identification of the PR2 rank sealing performance of type sealing ring (S sealing) or similar products tries
It tests.The experimental rig includes: device noumenon 1, and internal to have cavity, cavities open is in the bottom of device noumenon 1；Device noumenon
1 bottom is equipped with and the close-connected bottom cover 12 of device noumenon 1；Equipped with there are gaps with 1 inner wall of device noumenon in the cavity
Filling member 13, the gap between 1 inner wall of described device ontology and the side wall of filling member 13 are equipped with non-metallic seal to be detected
2；The liquid injection port 14 communicated with the cavity is equipped at the top of device noumenon 1, which is carried out by removable seal
Sealing；The bottom cover 12 is equipped with for detecting whether there is the detection hole 121 of leakage, detection hole 121 and leak detection apparatus
Connection.In some embodiments, bottom cover 12 is flange.Non-metallic seal 2 can separate the cavity inside device noumenon 1, make
Test(ing) medium also can not can not just be flowed out by non-metallic seal 2 from detection hole 121.
In experimental rig of the invention, filling member 13 is cylindrical body, and non-metallic seal 2 is O-ring seals, is suitable forThe sealing performance qualification test of type sealing ring (S sealing).
The experimental rig also includes to communicate with the cavity on 2 top of non-metallic seal, for being passed through several increasings of gas
Pressure pipeline.The cavity on 2 top of non-metallic seal is pressurized by being pressurized pipeline, can detect nonmetallic close under condition of high voltage
The leakproofness of sealing 2.The experimental rig is additionally provided with the blowdown line 5 communicated with the cavity on 2 top of non-metallic seal.Pressure inlet
Valve 6 is respectively arranged on line and blowdown line 5.Valve 6 is shut-off valve.In the present invention, 2 pressurization pipelines are set, respectively
First pressurization pipeline 3 and the second pressurization pipeline 4.When carrying out device experiment, if 2 sealing performance of non-metallic seal fails, examination
Testing medium (liquid or gas) can reveal from detection hole 12.Leak detection apparatus is collected leaked gas using drainage
And measurement.
The experimental rig also includes the heating device for heating described device ontology 1, can be used for detecting under hot environment
The leakproofness of non-metallic seal 2.
In some embodiments, heating device select heating watt, the outer diameter according to device noumenon 1 is customized, guarantee effectively and
Uniform heating.
The experimental rig also includes to be arranged in device noumenon 1, and the temperature for 1 internal temperature of measuring device ontology measures
Device；Device for pressure measurement in device noumenon 1, for 1 internal pressure of measuring device ontology is set.
In some embodiments, the temperature measuring device is temperature sensor, and the device for pressure measurement includes
Pressure sensor and pressure gauge.
It is provided with test operation case outside experimental rig of the invention, is connected with ventilation equipment.During test, test behaviour
Experimental rig is in subnormal ambient as case, can take gas test medium away in time.
Sealing performance Jian River of the invention are as follows:
A) experimental rig is simulated S seal operation environment and is designed to split type according to the principle that may be reused；
B) the standard connection flange that experimental rig selects API6A to recommend, device noumenon and flange is mating is designed；
C) bolt of device is countersunk bolt, and rule of thumb, countersunk bolt is easy installation, and tooling is small in size, light-weight；
D) temperature measurement installation standard requirements beat the hole that diameter is less than 13mm on flange, and hole is less than with a distance from inner wall
13mm；
E) temperature-adjusting heating device uses heating watt, and according to experimental rig outer diameter heating watt customized, maximum temperature will reach 140
℃；
F) test operation case is equipped with outside experimental rig, internal exhausting forms negative pressure, and gas leakage be discharged can in time；
G) pipeline, shut-off valve and connector of test use anti-corrosion material；
H) test high pressure connection uses Autoclave button-type, it is ensured that high pressure sealing.
Test operation step has 2 parts, including ontology gas pressure test and device experiment, test operation are described as follows:
1. ontology gas pressure test
Measurement instrument needed for 1.1:
The pressure gauge (range: 0-20000psi) of a calibration；
The pressure schedule recorder of b calibration.
1.2 test(ing) mediums:
Nitrogen.
Test temperature:
Room temperature.
1.3 test procedures:
A) non-metallic seal is installed on the filling member of experimental rig, then presses Fig. 1 joint test device, and pass through row
Vehicle hangs in gas pressure test pond, transfer to device bolt completely into the water, top from the water surface about 5cm, convenient for observe whether
There is leakage and bubble is caused to be emerged；
B) all other shut-off valve in addition to the shut-off valve of the first pressurization pipeline is closed；
C) it is pressurized pipeline air pressure 15000psi or more the first of experimental rig, but no more than 15500psi；
D) after ensuring that pressure is stablized, the shut-off valve for closing the first pressurization pipeline starts pressure maintaining, and the dwell time is not less than 15 points
Clock；
E) shut-off valve that the first pressurization pipeline is slowly opened after the completion of pressure maintaining, by the speed pressure release for being less than 1000psi/min
To 0；
F) continue to be pressurized pipeline air pressure to 15000psi the first of experimental rig；
G) after ensuring that pressure is stablized, the shut-off valve for closing the first pressurization pipeline starts pressure maintaining, and the dwell time is not less than
15min；
H) shut-off valve that the first pressurization pipeline is slowly opened after the completion of pressure maintaining, by the speed pressure release for being less than 1000psi/min
To 0psi；
I) after meeting acceptance criteria, experimental rig is hung out into pressure testing pond, continues to test.
Acceptance criteria
A is generated in pond without visible bubble during pressure maintaining in gas pressure test；
Pressure is stablized during b pressure maintaining, and change rate should be maintained within 500psi per hour.
2. device experiment
Measurement instrument needed for 2.1
The pressure gauge (range: 0-20000psi) of a calibration
The pressure sensor of b calibration (connection computer shows pressure value in computer control software)
The temperature sensor (connection computer, the displays temperature value in computer control software) of c calibration
2.2 test(ing) medium
A diesel oil, water；
B pressurization gas is mixed gas (10%H2S, 80%CO2, 10%CH4)；
C additional mechanical supercharging gas is nitrogen.
2.3 test temperature
Room temperature: 25 ± 5 DEG C；
Maximum temperature: 121 DEG C~132 DEG C；
Minimum temperature: -18 DEG C~-29 DEG C.
2.4 test procedures:
A) according to the size of the cavity on non-metallic seal top, calculate account for the cavity net volume 60% diesel oil amount and
5% water measures corresponding diesel oil and distilled water with suitable graduated cylinder.
B) it is injected by liquid injection hole into cavity and is ready for diesel oil, reinject distilled water.
C) Fig. 1 connection equipment is then pressed, all shut-off valves are closed, experimental rig is put into test operation case, opens ventilation
Equipment makes experimental rig be in negative pressure state.
D) operator (must 2 people or more) has dressed breathing mask according to requirement of shelter, is ready for subsequent plus mixing
Gas-operated.
E) the first shut-off valve for increasing pipeline is opened, is pressurized to the cavity on non-metallic seal top with mixed gas
300 ± 30psi is then shut off shut-off valve, and the mixed gas in the first pressurization pipeline is discharged, the first pressure inlet is then removed
Line；
F) start-up temperature control system is slowly heated device noumenon, is warming up to 121 DEG C or more, controls at 121 DEG C
To between 132 DEG C；
G) shut-off valve for opening the second pressurization pipeline, is pressurized to by the cavity that nitrogen is non-metallic seal top
15000psi, in pressurization, test temperature cannot be below 121 DEG C or higher than 132 DEG C；
H) shut-off valve of the second pressurization pipeline, nitrogen pressurization system pressure release are closed；
I) 160 hours of pressure maintaining after power is stablized test pressure drop and are not higher than 500psi, test temperature in pressure maintaining period during pressure maintaining
Degree cannot be below 121 DEG C or higher than 132 DEG C.(the every 30min record of the process is primary, in the inspection of experimental rig during high temperature pressure maintaining
Gaging hole is collected leaked gas with drainage, carries out recording every 4 hours primary.)
J) stop heating by temperature control system, experimental rig is made to be cooled to room temperature (25 ± 5 DEG C)；
K) shut-off valve for slowly opening blowdown line carries out pressure release by the speed less than 1000psi/min, until pressure drop
To 0；
L) shut-off valve for closing blowdown line opens the shut-off valve of the second pressurization pipeline, makes nonmetallic sealing by nitrogen
The cavity on part top is pressurized to 15000psi；
M) pressure starts pressure maintaining after stablizing, and the dwell time is no less than 1 hour, and pressure drop is tested during pressure maintaining and is not higher than
500psi；
N) shut-off valve for slowly opening blowdown line carries out pressure release by the speed less than 1000psi/min, until pressure drop
To 0；
O) heating watt on experimental rig is removed, experimental rig is put into high-low temperature test chamber；
P) high-low temperature test chamber is set as cooling mode, and segmentation cools down to experimental rig, is cooled to -18 DEG C to -29
Between DEG C；
Q) open second pressurization pipeline shut-off valve, by nitrogen be non-metallic seal top cavity suppress to
15000psi, in pressurization, test temperature cannot be below -29 DEG C or higher than -18 DEG C；
R) pressure starts pressure maintaining after stablizing, and the dwell time is no less than 1 hour, and pressure drop cannot be greater than during pressure maintaining
500psi；
S) shut-off valve for slowly opening blowdown line, by the speed pressure release for being less than 1000psi/min, until pressure is down to 0；
T) high-low temperature test chamber is opened wide, experimental rig is allowed to be back to room temperature.
Acceptance criteria
A. during entire rated pressure pressure maintaining, test pressure drop should be less than 500psi, when pressure drop is greater than 500psi, can use
Nitrogen is pressurized to 15000psi from the second pressurization pipeline；
B. during hot test, highest test temperature cannot be below 121 DEG C or higher than 132 DEG C；
C. during low-temperature test, minimum test temperature cannot be below -29 DEG C or higher than -18 DEG C；
D. after hot test in 160 hours, the leakage rate that leak detection apparatus detects should be less than 100cm3, do not continue
Visible bubble in bubble (20cm3/ h or more)；
E. after room temperature and low-temperature test, the leakage rate that leak detection apparatus detects should be less than 20cm3, persistently may not be used
See bubble (20cm3/ h or more).
In conclusion the experimental rig and method provided by the present invention for the identification of non-metallic seal sealing performance,
Realize the device experiment of the PR2 rank sealing performance identification of non-metallic seal.The experimental design of experimental rig of the invention
Meet F.1.13.5.3 requirement of the standard to device experiment of ISO 10423:2009 annex, may be used on oil equipment well head and adopts
In the device experiment of oil tree.
It is discussed in detail although the contents of the present invention have passed through above preferred embodiment, but it should be appreciated that above-mentioned
Description is not considered as limitation of the present invention.After those skilled in the art have read above content, for of the invention
A variety of modifications and substitutions all will be apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (10)
1. a kind of experimental rig for the identification of non-metallic seal sealing performance, which is characterized in that the experimental rig packet
Contain:
Device noumenon, internal to have cavity, cavities open is in device noumenon bottom；Device noumenon bottom is equipped with and device noumenon
Close-connected bottom cover；Equipped with there are the filling member in gap, described device inner body walls with device noumenon inner wall in the cavity
Gap between the side wall of filling member is equipped with non-metallic seal to be detected；It is equipped with and the cavity phase at the top of device noumenon
Logical liquid injection port, the liquid injection port are sealed by removable seal；The bottom cover be equipped with for detecting whether in the presence of
The detection hole of leakage, the detection hole are connect with leak detection apparatus；
It is communicated with the cavity on non-metallic seal top, for being passed through several pressurization pipelines of gas；
The blowdown line communicated with the cavity on non-metallic seal top；
For heating the heating device of described device ontology；
It is arranged on described device ontology, for measuring the temperature measuring device of described device body interior temperature；And
It is arranged on described device ontology, for measuring the device for pressure measurement of non-metallic seal upper cavity pressure.
2. the experimental rig for the identification of non-metallic seal sealing performance as described in claim 1, which is characterized in that described
Filling member be cylindrical body, the non-metallic seal be O-ring seals.
3. the experimental rig for the identification of non-metallic seal sealing performance as described in claim 1, which is characterized in that described
Bottom cover be flange.
4. the experimental rig for the identification of non-metallic seal sealing performance as described in claim 1, which is characterized in that described
Heating device include that the heating watt of described device outer body is set.
5. the experimental rig for the identification of non-metallic seal sealing performance as described in claim 1, which is characterized in that described
Temperature measuring device include temperature sensor, the device for pressure measurement include pressure sensor and pressure gauge.
6. the experimental rig for the identification of non-metallic seal sealing performance as described in claim 1, which is characterized in that described
Experimental rig also include: the test operation case outside the experimental rig is set, is connected with ventilation equipment.
7. a kind of test method of non-metallic seal sealing performance identification, which is characterized in that this method uses such as claim
Experimental rig described in any one of 1-6 for the identification of non-metallic seal sealing performance, the pressurization pipeline are the
One pressurization pipeline and the second pressurization pipeline, test method comprise the steps of:
Step 1: by liquid injection port, liquid pilot medium is injected into the cavity on non-metallic seal top；
Step 2: opening the valve on the first pressurization pipeline, be passed through pressurization gas into the cavity on non-metallic seal top, make
It is pressurized to 300 ± 30psi, the valve being then shut off on the first pressurization pipeline；
Step 3, humid test is carried out, the humid test includes any one of hot test, room temperature test and low-temperature test
Kind or two or more combinations；
The hot test includes:
A: device noumenon is heated, is allowed to warm to 121 DEG C to 132 DEG C；
B: opening the valve on the second pressurization pipeline, be passed through additional mechanical supercharging gas, be pressurized to 15000psi, in pressurization,
Test temperature is maintained at 121 DEG C to 132 DEG C；
C: after pressure is stablized, the dwell time is no less than 160 hours；Test temperature is maintained at 121 DEG C to 132 in pressure maintaining period
℃；Pressure drop cannot be greater than 500psi during pressure maintaining；
D: stop heating, cooling test device to room temperature；The valve on blowdown line is opened, by the speed for being less than 1000psi/min
Degree carries out pressure release, until pressure is 0；
The room temperature test includes:
E: experimental rig is in room temperature, opens the valve on the second pressurization pipeline, is passed through additional mechanical supercharging gas, is pressurized to
15000psi；
F: pressure starts pressure maintaining after stablizing, and the dwell time is no less than 1 hour；Pressure drop cannot be greater than 500psi during pressure maintaining；
G: opening the valve on blowdown line, carries out pressure release by the speed less than 1000psi/min, until pressure is 0；
The low-temperature test includes:
H: it is cooled to experimental rig between -18 DEG C to -29 DEG C；
I: opening the valve of the second pressurization pipeline, be passed through additional mechanical supercharging gas, suppress to 15000psi, in pressurization, examination
It tests temperature and is maintained at -18 DEG C to -29 DEG C；
J: pressure maintaining, dwell time are no less than 1 hour；Pressure drop cannot be greater than 500psi during pressure maintaining；
K: opening the valve on blowdown line, carries out pressure release by the speed less than 1000psi/min, until pressure is 0；Make to test
Device completes experiment after being back to room temperature.
8. the test method of non-metallic seal sealing performance identification as claimed in claim 7, which is characterized in that the liquid
Body test(ing) medium includes diesel oil and water；The pressurization gas includes: H2S、CO2And CH4, the additional mechanical supercharging gas includes
Nitrogen.
9. the test method of non-metallic seal sealing performance identification as claimed in claim 7, which is characterized in that during pressure maintaining
When pressure drop is greater than 500psi, the valve on the second pressurization pipeline is opened, 15000psi is pressurized to.
10. the test method of non-metallic seal sealing performance identification as claimed in claim 7, which is characterized in that carrying out
Further include the ontology gas pressure test for detecting the experimental rig air-tightness before step 1, which includes:
(1) into the water by experimental rig；
(2) it carries out step L: additional mechanical supercharging gas being passed through by the first pressurization pipeline and is suppressed to 15000psi；Ensure that pressure is stablized
Afterwards, the dwell time is no less than 15 minutes, pressure release to 0；It is primary to repeat step L；
(3) whether there is the change rate of pressure during bubble generation and pressure maintaining during test in observation water.
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| CN201811501789.3A CN109387336A (en) | 2018-12-10 | 2018-12-10 | A kind of experimental rig and method for the identification of non-metallic seal sealing performance |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110057503A (en) * | 2019-04-30 | 2019-07-26 | 美钻石油钻采系统工程（上海）有限公司 | A kind of test method for testing casing head performance |
| CN110806313A (en) * | 2019-11-20 | 2020-02-18 | 浙江石化阀门有限公司 | Cold and hot alternation detection method for high-temperature high-pressure wear-resistant ball valve |
| CN117147075A (en) * | 2023-10-30 | 2023-12-01 | 四川宏大安全技术服务有限公司 | Water seal pressure test method and system for well control equipment |
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| CN105387974A (en) * | 2015-11-30 | 2016-03-09 | 天鼎联创密封技术（北京）有限公司 | Test device and test method for seal ring |
| CN209296242U (en) * | 2018-12-10 | 2019-08-23 | 美钻深海能源科技研发（上海）有限公司 | A kind of experimental rig for the identification of non-metallic seal sealing performance |
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| CN105387974A (en) * | 2015-11-30 | 2016-03-09 | 天鼎联创密封技术（北京）有限公司 | Test device and test method for seal ring |
| CN209296242U (en) * | 2018-12-10 | 2019-08-23 | 美钻深海能源科技研发（上海）有限公司 | A kind of experimental rig for the identification of non-metallic seal sealing performance |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110057503A (en) * | 2019-04-30 | 2019-07-26 | 美钻石油钻采系统工程（上海）有限公司 | A kind of test method for testing casing head performance |
| CN110806313A (en) * | 2019-11-20 | 2020-02-18 | 浙江石化阀门有限公司 | Cold and hot alternation detection method for high-temperature high-pressure wear-resistant ball valve |
| CN117147075A (en) * | 2023-10-30 | 2023-12-01 | 四川宏大安全技术服务有限公司 | Water seal pressure test method and system for well control equipment |
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