CN110410050A - One hole multiline sealing device and method of the high-voltage probe for heavy crude heat extraction experiment - Google Patents
One hole multiline sealing device and method of the high-voltage probe for heavy crude heat extraction experiment Download PDFInfo
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- CN110410050A CN110410050A CN201910649766.5A CN201910649766A CN110410050A CN 110410050 A CN110410050 A CN 110410050A CN 201910649766 A CN201910649766 A CN 201910649766A CN 110410050 A CN110410050 A CN 110410050A
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- 238000007789 sealing Methods 0.000 title claims abstract description 112
- 239000000523 sample Substances 0.000 title claims abstract description 30
- 238000002474 experimental method Methods 0.000 title claims abstract description 29
- 238000000605 extraction Methods 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 17
- 210000004907 gland Anatomy 0.000 claims abstract description 24
- 230000006835 compression Effects 0.000 claims abstract description 8
- 238000007906 compression Methods 0.000 claims abstract description 8
- 239000004576 sand Substances 0.000 claims description 21
- 238000012360 testing method Methods 0.000 claims description 14
- 230000000694 effects Effects 0.000 claims description 9
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- 238000005056 compaction Methods 0.000 claims description 4
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- 238000011160 research Methods 0.000 abstract description 9
- 238000005516 engineering process Methods 0.000 abstract description 3
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- 238000010586 diagram Methods 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 238000004088 simulation Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000013461 design Methods 0.000 description 3
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- 238000000465 moulding Methods 0.000 description 3
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- 239000010959 steel Substances 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
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- 230000000052 comparative effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 229920006351 engineering plastic Polymers 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000003209 petroleum derivative Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
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- 239000003063 flame retardant Substances 0.000 description 1
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- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/24—Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/08—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing
- F16J15/0881—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing the sealing effect being obtained by plastic deformation of the packing
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- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- General Engineering & Computer Science (AREA)
- Geophysics (AREA)
- Mechanical Engineering (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention belongs to heavy crude heat extraction technical field of experiment equipment, disclose an a kind of hole multiline sealing device and method of high-voltage probe for heavy crude heat extraction experiment；It is provided with more pressure and surveys column；More pressure survey column and pass through sealing gland, anti-rotation dynamic pressure plate, deformation cone and seal receptacle and tightly lock；Seal receptacle is fixed by corresponding gap and the limit of anti-rotation dynamic pressure plate；Sealing gland is connect by bolt with seal receptacle；Sealing gland is provided with sealing cone, seal receptacle is squeezed by sealing cone and deformation cone by moving downward compression deformation cone on seal receptacle.Heatproof of the present invention is higher, up to 1000 DEG C, by higher resistance to temperature-pressure seal technology, effectively extends the deep research of depth of stratum, and the configuration of the present invention is simple, versatility is good, can replace easily on different high-tension apparatuses by crossover sub.Meanwhile breaking the temperature limiting of current related equipment, the range of scientific research has more broadly been expanded greatly.
Description
Technical field
The invention belongs to heavy crude heat extraction technical field of experiment equipment more particularly to a kind of high pressures for heavy crude heat extraction experiment
One hole multiline sealing device and method of probe.
Background technique
Currently, needing often to carry out some simulations in the experimental fields such as petroleum, the exploration of chemical industry and energy class and exploitation
The research experiment of the laboratory scale at scene, carries out the simulation of some correlation theories and experimental model, is frequently encountered some surveys
Related problem is tried, most commonly seen is exactly test, the monitoring about high-pressure, this just needs the hardware of equipment to pass through
Or more test probes go deep into inside model media being detected.Similar pressure line etc enters high in terms of these probes
When inside pressure vessel, a series of sealing problems are related to.When carrying out the sealing of detection pressure probe in conventional pressure vessel,
It often only needs to be sealed single pressure sensor, can be realized by the modes such as O-ring and some engineering plastics, work as research
Condition continue to increase, when depth of stratum continues growing, researcher needs to install more pressure under very small area and surveys columns,
And the requirement of pressure index also gradually increases, sealing material traditional at this time and sealing structure cannot meet needs.
Currently used sealing structure all originates from the cable penetration sealing structure of Marine engineering use, is broadly divided into material filling type
Sealing device, modular seal device, welding stuffing-box threading tube sealing device, extension type sealed device, fire blanket filling
Formula sealing device.Stuffing type sealing device is made of putty (Expandable strip, expanding fire retardant), filler and frame, and filler is by powder
It forms with solution two parts, configures according to a certain percentage, be sufficiently full of the gap between cable frame and cable, cable and cable,
Expandable strip is used to separate the slime flux of prevention filler after cable and expansion.Modular seal device is that one kind has been prefabricated into standard component
Device, be generally made of module, frame, attachment.Great advantage is with dismoutability.Band stuffing-box threading tube sealing device by
Penetration pipe, sleeve, stuffing-box composition.Penetration pipe is seamless steel pipe or welded still pipe, and sleeve is seamless steel pipe, and the sealing device is most
It is suitble to unit cable armour-piercing plate to use.Extension type sealed device is generally made of fireproof casing, frame and sealant.Installation tool is
Gluing is robbed and cutter, mounting means be fireproof casing is coated on the intracorporal cable of frame, framework both ends fill with
Fireproof seal gum based on silicone compound, feature is fire protecting performance height, while having dismoutability.Blanket of preventing fires sealing dress
It sets and is made of fire blanket, sealant and frame.Installation tool is that gluing is robbed and cutter, frame use the frame from design, frame
For the cross sectional shape and depth of frame without particular/special requirement, installation is simple and quick, and the possibility of waste material is substantially not present.
The deficiency of existing sealing device is embodied in three aspects: one, most research contents and product design are all needles
Sealing is passed through to cable, the Research on Seal of pressure probe or metal sleeve is fallen behind very much.Two, existing sealing structure
It can only realize the sealing of single pressure sensor, and sealing device area occupied is larger, highdensity pressure probe is measured
The effect of form is excessively poor.Three, existing sealing material has polyvinyl chloride (PVC), polyethylene (PE), perfluoroethylene-propylene
(F46), polyolefin etc., rubber material have haloflex (CPE), chlorosulfonated polyethylene (CSM), neoprene rubber, silicon rubber etc.,
These materials will appear apparent elasticity and plasticity variation under hyperbaric environment, lead to seal failure.
Solve the difficulty of above-mentioned technical problem: one, the deformation quantity due to the metal of different materials under hyperbaric environment is not to the utmost
It is identical, and the deformation quantity of metal is generally less than the deformation quantity of plastics at the same pressure, this results in the close of metal material
Envelope difficulty is significantly larger than the sealing of plastic material.Two, since the sealing device that we are related to is directed to the spy of high-density arrangement
Needle, often needs to be inserted into more probes in a sealing device, and sealing difficulty is significantly larger than traditional for single probe
Sealing device.So the sealing structure of metal probe multi-thread for a hole has to from two angles of sealing structure and sealing material
Carry out innovative design.
The meaning to solve the above problems: if the hole multiline sealing device warp of the high-voltage probe for heavy crude heat extraction experiment
It crosses proof and meets actual demand, it will have immeasurable meaning in two fields of sealing structure and equipment research.One, it proves
The improvement of sealing structure can be realized the good seal under hyperbaric environment to metal probe, breach conventional seals structure
Limitation, has expanded the scope of application of sealing device；Two, it demonstrates and can be realized highdensity high-voltage probe row under small area
Cloth has carried out great extension to the applicability of heavy crude heat extraction equipment, has widened the research field of deep formation, integrally expanded
Bottom under laboratory environment simulates scope.
Summary of the invention
In view of the problems of the existing technology, the present invention provides the one of a kind of high-voltage probe for heavy crude heat extraction experiment
Hole multiline sealing device and method；The present invention is different from conventional O-ring sealing, or sealing when being compressed with engineering plastics,
A kind of sealing structure resistant to high temperature of all-metal formula is provided, can satisfy the pressure seal under the conditions of deeper layer high ambient temperature
Index request meets broader experimental study, provides support for geology of deep part stratigraphy study, has also more widened pertinent instruments
The application range of equipment.
The invention is realized in this way it is a kind of for heavy crude heat extraction experiment high-voltage probe a hole multiline sealing device and
Method is provided with
More pressure survey column；
More pressure survey column and pass through sealing gland, anti-rotation dynamic pressure plate, deformation cone and seal receptacle and tightly lock；
Seal receptacle is fixed by corresponding gap and the limit of anti-rotation dynamic pressure plate；Sealing gland is connected by bolt and seal receptacle
It connects；
Sealing gland is provided with sealing cone on seal receptacle, seal receptacle passes through sealed taper by moving downward compression deformation cone
Face and deformation cone squeeze.
The present invention makes its braking by limiting anti-rotation dynamic pressure plate by gap corresponding on seal receptacle in compaction process
Compression deformation cone is moved downward under the action of sealing gland, is protected pressure to survey column itself and is not rotated；By being provided with sealing pressure
Lid and seal receptacle, may be implemented under Double Pressures, and deformation cone is by stress deformation, to press more under certain pretightning force
Power survey column tightly locks, since temperature and pressure surveys the inner circular aperture of column and deformation cone and deforms the sealing surface and seal receptacle bored
Sealing surface gap very little, and surface roughness is all 1.6 even in 0.8 or more, under biggish extruding force, each contact surface
It will occur to be bonded and realize sealing tightly.Pressure resistance of the invention is higher, up to 70MPa, by higher pressure-resistant seal technology,
The deep research of depth of stratum, and the configuration of the present invention is simple are effectively extended, versatility is good, can be by crossover sub easily
It replaces on different high-tension apparatuses.
Further, the seal receptacle is connected by adapter from different high-tension apparatuses by bolt and adapter, seal receptacle
It connects；
The present invention can easily be replaced on different high-tension apparatuses by being provided with adapter.
Further, the adapter switching is screwed into high pressure bulkhead.
The present invention may be implemented to shift between distinct device and cabin general by being provided with high pressure bulkhead, pass through simultaneously
The multi-thread measuring point connector in the various molding holes of high temperature resistant material combines different experimental facilities that can meet petroleum gas neck
The various viscous crude experiments of the simulation and development of the various hyperbaric environments in domain.
Further, it includes that pressure line, pipeline tighten rope, sand net that the pressure, which surveys column,；
Sand net is socketed on pressure line, pipeline tightens rope by circumferentially tightening the sand net being entangled on pipeline.
The present invention surveys column, the effect for preventing the clasts such as impurity and fine sand from blocking pipeline, pressure pipe by being provided with pressure
Line primarily serves the effect of transmitting pressure, and pipeline tightens rope by circumferentially tightening the sand net being entangled on pipeline, prevents fine sand
Etc. broken particles circumferentially and end is leaked to the end of pipeline；Rope is tightened by every root canal line wound thereon pipeline to carry out pipeline
Filtering flow realizes the test of different depth pressure spot by controlling the pipeline of different length.
Another object of the present invention is to provide an a kind of holes based on the high-voltage probe for heavy crude heat extraction experiment
One hole multiline sealing method of the high-voltage probe for heavy crude heat extraction experiment of multiline sealing device, it is described real for heavy crude heat extraction
One hole multiline sealing method of the high-voltage probe tested includes:
Sand net is socketed on pressure line, pipeline tightens rope by circumferentially tightening the sand net being entangled on pipeline；
More pressure are surveyed column and are fixed by anti-rotation dynamic pressure plate, will be prevented in compaction process by corresponding gap on seal receptacle
Pressing plate limit is rotated, so that braking is moved downward compression deformation cone under the action of sealing gland, deformation cone is under the action of stress
It will move downward, and squeeze the sealing cone of seal receptacle, under the Double Pressures for doing sealing gland and seal receptacle 5, deformation is bored stress
Deformation, so that under pre-tension, more pressure for passing through sealing gland and anti-rotation dynamic pressure plate and deformation cone and seal receptacle 5 survey column
It tightly locks, each contact surface will occur to be bonded and realize sealing tightly, by being integrally formed after locking, realize high temperature item
The temperature, pressure of more survey columns under part seals, and realizes hole multi-measuring point sealing；
Pressure line transmits the effect of pressure, and pipeline tightens rope by circumferentially tightening the sand net being entangled on pipeline, prevents
Only broken particle is circumferentially and end is leaked to the end of pipeline；Rope is tightened by every root canal line wound thereon pipeline to carry out pipeline
Filtering flow realizes the test of different depth pressure spot by controlling the pipeline of different length.
Detailed description of the invention
Fig. 1 is a hole multiline sealing device knot of the high-voltage probe provided in an embodiment of the present invention for heavy crude heat extraction experiment
Structure schematic diagram.
Fig. 2 is that pressure provided in an embodiment of the present invention surveys rod structure schematic diagram.
Fig. 3 is adapter structure schematic diagram provided in an embodiment of the present invention.
Fig. 4 is anti-rotation pressure plate structure schematic diagram provided in an embodiment of the present invention.
Fig. 5 is deformation wimble structure schematic diagram provided in an embodiment of the present invention.
In figure: 1, pressure survey column, 2, sealing gland, 3, anti-rotation dynamic pressure plate, 4, deformation cone, 5, seal receptacle, 6, adapter, 7,
High pressure bulkhead；8, pressure line；9, pipeline tightens rope；10, sand net.
Fig. 6 is Steady Experimental system flow chart provided in an embodiment of the present invention.
Fig. 7 is pressure vs time diagram in multiline sealing device Steady Experimental in a hole provided in an embodiment of the present invention.
Fig. 8 is pressure versus time line chart in multiline sealing device comparative experiments in a hole provided in an embodiment of the present invention.
Fig. 9 was provided in an embodiment of the present invention in the environment of confining pressure pumps continued jitters pressure supply, by 24 hours continue
Test discovery only has the pressure sensor of new type sealing device being capable of real-time tracking pressure variation.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
As Figure 1-Figure 5, a hole of the high-voltage probe provided in an embodiment of the present invention for heavy crude heat extraction experiment is multi-thread
Sealing device is provided with more pressure and surveys column 1；More pressure survey columns 1 pass through sealing gland 2, anti-rotation dynamic pressure plate 3, deformation cone 4 and
Seal receptacle 5 simultaneously tightly locks；Seal receptacle 5 is fixed by corresponding gap and the limit of anti-rotation dynamic pressure plate 3；Sealing gland 2 passes through bolt
It is connect with seal receptacle 5, sealing gland 2 is provided with sealing cone, seal receptacle 5 on seal receptacle 5 by moving downward compression deformation cone 4
It is squeezed by sealing cone and deformation cone 4.
Wherein anti-rotation dynamic pressure plate 3 and seal receptacle 5 are all made of 2520 machine-shaping of high temperature resistant stainless steel, intermediate deformed part
Deformation cone 4 uses the T2 machine-shaping of high temperature resistant red copper, and sealing gland 2 is quenched and chrome-faced work using No. 45 steel by quenched
Skill molding, hardness is high, and intensity is big, is unlikely to deform.
More pressure survey column 1 can be fixed by anti-rotation dynamic pressure plate 3, by corresponding on seal receptacle 5 in compaction process
Gap limits anti-rotation dynamic pressure plate 3, so that its braking is moved downward compression deformation cone 4 under the action of sealing gland 2, protects pressure
It surveys column 1 itself not rotate, deformation cone 4 will move downward under the action of stress, squeeze the sealing cone of seal receptacle 5, seal
Under the Double Pressures of gland 2 and seal receptacle 5, deformation cone 4 is by stress deformation, to pass through sealing under certain pretightning force
More pressure of gland 2 and anti-rotation dynamic pressure plate 3 and deformation cone 4 and seal receptacle 5 are surveyed column 1 and are tightly lockked, since pressure surveys column 1 and becomes
The sealing surface gap very little of the inner circular aperture of shape cone 4 and the sealing surface of deformation cone 4 and seal receptacle 5, and surface roughness all exists
1.6 or more, under biggish extruding force, each contact surface will occur to be bonded and realize sealing tightly, by after locking at
It is integrated the temperature, pressure sealing, it can be achieved that more survey columns under hot conditions, to realize hole multi-measuring point sealing.
The seal receptacle 5 is connected by adapter 6 from different high-tension apparatuses by bolt and adapter 6, seal receptacle 5；
The switching of adapter 6 is screwed into high pressure bulkhead 7.
It can easily be replaced on different high-tension apparatuses by the adapter 6 of lower part, hyperbaric chamber is screwed by switching
Wall 7 can be realized and shift between distinct device and cabin general, while passing through the molding multi-thread survey in a hole of various high temperature resistant materials
Point connector can meet the simulation and development of the various hyperbaric environments of petroleum gas field in conjunction with different experimental facilities
Various viscous crude experiments.
It includes that pressure line .8, pipeline tighten rope 9, sand net 10 that the pressure, which surveys column,；
Sand net 10 is socketed on pressure line 8, pipeline tightens rope 9 by circumferentially pricking the sand net 10 being entangled on pipeline
Tightly.
By being provided with pressure line .8, pipeline tighten rope 9, sand net 10 can play prevent the clasts such as impurity and fine sand will
The effect of pipeline blocking, pressure line 8 primarily serve the effect of transmitting pressure, and pipeline tightens rope 9 by that will be entangled on pipeline
Sand net 10 circumferentially tightens, and prevents the broken particles such as fine sand circumferentially and end is leaked to the end of pipeline.By on every root canal line
Face winding pipeline tightens rope 9 and pipeline is carried out filtering flow, realizes different depth pressure by controlling the pipeline of different length
The test of point.
Below with reference to specific experiment, the invention will be further described.
One hole multiline sealing device Steady Experimental:
In order to ensure novel hole multiline sealing device meets experiment needs, to sealer by taking five linear sealing device of a hole as an example
Sealing performance has carried out steady state test.The method of use is to pump to provide rated pressure, pressure supply knot to high-pressure chamber using electronic confining pressure
Confining pressure pump is closed after beam.Pressure is surveyed column to be inserted into high-pressure chamber by sealer, sensor signal lines are connected to control terminal and are read
Take the pressure data in high-pressure chamber, the pressure mean values that the setting value for finally pumping electronic confining pressure and five sensor measurements go out into
Row compares, to verify the performance of sealer.In order to guarantee the safety of experimenter, we are under identical temperature environment to height
Storehouse is pressed to carry out the applied voltage test of different pressures, experimental period continues 24 hours, guarantees the reliability of test result.By experimental result
It records and is depicted as pressure versus time line chart 6.
It can be seen from figure 7 that after confining pressure, which pumps, terminates pressure supply, it is lower to find high-pressure chamber by 24 hours continuance tests
Pressure does not obviously fluctuate, it was demonstrated that leakproofness of the sealer under highest 70MPa high pressure is good.
One hole multiline sealing device comparative experiments:
In order to prove superiority of the hole multiline sealing device relative to conventional sealing apparatus, it is with five linear sealing device of a hole
Example has carried out contrast test to the sealing performance of sealer.The method of use is to pump to provide fluctuation to high-pressure chamber using electronic confining pressure
Pressure continues pressure supply.Pressure is surveyed column to be inserted into high-pressure chamber by sealer, sensor signal lines are connected to control terminal and are read
Pressure data in high-pressure chamber, the setting value for finally pumping electronic confining pressure are carried out with the pressure mean values that five sensor measurements go out
Compare, to verify the performance of novel seal device.
Among another group of device, commercially the different sealing device of quality is divided into A, B, C, D according to its quality
Four groups, identical experiment flow is provided it, is pumped using electronic confining pressure and provides surge pressure to high-pressure chamber, continues pressure supply.It will pressure
Power is surveyed column and is inserted into high-pressure chamber by tetra- groups of sealers of A, B, C, D, and sensor signal lines are connected to control terminal and read high-pressure chamber
The setting value that electronic confining pressure pumps finally is compared by interior pressure data with the pressure value that sensor measurement goes out,
In order to guarantee the safety of experimenter, the pressurization for carrying out different pressures to high-pressure chamber under identical temperature environment is surveyed
Examination, experimental period continue 24 hours, guarantee the reliability of test result.Experimental result is recorded and is depicted as pressure versus time folding
Shown in line chart 8.
It can be seen in figure 9 that being found in the environment of confining pressure pumps continued jitters pressure supply by 24 hours continuance tests
The only pressure sensor of new type sealing device being capable of real-time tracking pressure change, that is to say, that the leakproofness of high-pressure chamber is protected always
Kilter is held, and A group sealer loses leakproofness under 40MPa environment and produces the effect of similar counterbalance valve, explanation
Such sealer cannot work in the environment of being higher than 40MP, and BCD group sealer is respectively in 40MPa, 35MPa, 30MPa environment
Under lose sealing effect.In conclusion the similar sealed product of comparison in the market, the novel multi-thread high pressure seal in a hole can
It continually and steadily works in the environment of 70MPa.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (5)
1. an a kind of hole multiline sealing device of the high-voltage probe for heavy crude heat extraction experiment, which is characterized in that described is used for
One hole multiline sealing device of the high-voltage probe of heavy crude heat extraction experiment is provided with
More pressure survey column；
More pressure survey column and pass through sealing gland, anti-rotation dynamic pressure plate, deformation cone and seal receptacle and tightly lock；
Seal receptacle is fixed by corresponding gap and the limit of anti-rotation dynamic pressure plate；Sealing gland is connect by bolt with seal receptacle；
Sealing gland is provided with sealing cone on seal receptacle by moving downward compression deformation cone, seal receptacle by sealing cone with
Deformation cone squeezes.
2. the hole multiline sealing device for the high-voltage probe of heavy crude heat extraction experiment, feature exist as described in claim 1
In the seal receptacle is connected by adapter from different high-tension apparatuses by bolt and adapter, seal receptacle.
3. the hole multiline sealing device for the high-voltage probe of heavy crude heat extraction experiment, feature exist as described in claim 1
In the adapter switching is screwed into high pressure bulkhead.
4. the hole multiline sealing device for the high-voltage probe of heavy crude heat extraction experiment, feature exist as described in claim 1
Surveying column in, the pressure includes that pressure line, pipeline tighten rope, sand net.
5. an a kind of hole multiline sealing device based on the high-voltage probe for being used for heavy crude heat extraction experiment described in claim 1 is used for
One hole multiline sealing method of the high-voltage probe of heavy crude heat extraction experiment, which is characterized in that the height for heavy crude heat extraction experiment
Pressure probe a hole multiline sealing method include:
Sand net is socketed on pressure line, pipeline tightens rope by circumferentially tightening the sand net being entangled on pipeline；
More pressure are surveyed columns and are fixed by anti-rotation dynamic pressure plate, pass through on seal receptacle corresponding gap in compaction process for anti-rotation
Pressing plate limit makes braking move downward compression deformation cone under the action of sealing gland, and deformation cone will be under the action of stress
Lower movement, squeezes the sealing cone of seal receptacle, and under the Double Pressures for doing sealing gland and seal receptacle 5, deformation is bored stress deformation,
Column is surveyed tightly under pre-tension, pass through more pressure of sealing gland and anti-rotation dynamic pressure plate and deformation cone and seal receptacle 5
It locks, each contact surface will occur to be bonded and realize sealing tightly, by being integrally formed after locking, realize under hot conditions
More survey columns temperature, pressure sealing, realize a hole multi-measuring point sealing；
Pressure line transmits the effect of pressure, and pipeline tightens rope by circumferentially tightening the sand net being entangled on pipeline, prevents broken
Particle is circumferentially and end is leaked to the end of pipeline；Rope is tightened by every root canal line wound thereon pipeline, and pipeline is subjected to fluid
Filtering realizes the test of different depth pressure spot by controlling the pipeline of different length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910649766.5A CN110410050A (en) | 2019-07-18 | 2019-07-18 | One hole multiline sealing device and method of the high-voltage probe for heavy crude heat extraction experiment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910649766.5A CN110410050A (en) | 2019-07-18 | 2019-07-18 | One hole multiline sealing device and method of the high-voltage probe for heavy crude heat extraction experiment |
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| CN109578583A (en) * | 2019-01-25 | 2019-04-05 | 北京瑞莱博石油技术有限公司 | A kind of high-temperature and high-presure resistent hole multi-measuring point sealing structure |
| CN112013114A (en) * | 2020-08-26 | 2020-12-01 | 中国海洋石油集团有限公司 | One-hole multi-line sealing device and method for high-voltage probe |
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Application publication date: 20191105 |