CN109297655A - Ground experiment device with disc spring compensation function - Google Patents
Ground experiment device with disc spring compensation function Download PDFInfo
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- CN109297655A CN109297655A CN201811427922.5A CN201811427922A CN109297655A CN 109297655 A CN109297655 A CN 109297655A CN 201811427922 A CN201811427922 A CN 201811427922A CN 109297655 A CN109297655 A CN 109297655A
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- central tube
- sealing drum
- sealing
- thrust assemblies
- thrust
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- 238000002474 experimental method Methods 0.000 title claims abstract description 24
- 238000007789 sealing Methods 0.000 claims abstract description 140
- 238000000429 assembly Methods 0.000 claims abstract description 74
- 230000000712 assembly Effects 0.000 claims abstract description 74
- 238000012360 testing method Methods 0.000 claims abstract description 59
- 239000007788 liquid Substances 0.000 claims abstract description 27
- 238000004088 simulation Methods 0.000 claims abstract description 14
- 238000010438 heat treatment Methods 0.000 claims abstract description 13
- 230000006641 stabilisation Effects 0.000 claims abstract description 9
- 238000011105 stabilization Methods 0.000 claims abstract description 9
- 238000009434 installation Methods 0.000 claims abstract description 5
- 206010055018 Gingival cyst Diseases 0.000 claims description 28
- 210000004907 gland Anatomy 0.000 claims description 28
- 238000003825 pressing Methods 0.000 claims description 8
- 230000000694 effects Effects 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000007246 mechanism Effects 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 238000004382 potting Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000009661 fatigue test Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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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
- G01M3/32—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 for containers, e.g. radiators
- G01M3/3209—Details, e.g. container closure devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
-
- 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
- G01M3/32—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 for containers, e.g. radiators
- G01M3/3236—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 for containers, e.g. radiators by monitoring the interior space of the containers
- G01M3/3272—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 for containers, e.g. radiators by monitoring the interior space of the containers for verifying the internal pressure of closed containers
-
- 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
- G01M3/32—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 for containers, e.g. radiators
- G01M3/3281—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 for containers, e.g. radiators removably mounted in a test cell
- G01M3/329—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 for containers, e.g. radiators removably mounted in a test cell for verifying the internal pressure of closed containers
Abstract
This application discloses a kind of ground experiment devices with disc spring compensation function, are related to simulation test device.Ground simulation test device is for the sealing performance after the completion of testing the setting force of sealing drum and its setting under room temperature, high pressure and high temperature, condition of high voltage, comprising: central tube, the first thrust assemblies, the second thrust assemblies, hydraulic test pump, connecting line and heating element.Central tube is used as installation foundation.First thrust assemblies test envelope for realizing the single side of the sealing drum.Second thrust assemblies are used to maintain the stabilization of setting force and realize two-sided to test envelope.Hydraulic test pump is for providing highly pressurised liquid.Connecting line is for conveying the highly pressurised liquid.Heating element is for heating sealing drum.The simple mechanism that the application is made up of above structure, can accurate simulation packer annular space sealing drum high temperature, high pressure operating condition under annular space sealing effect, while also have the advantages that structure simply, take up little area, be at low cost, is easy to disassemble.
Description
Technical field
This application involves simulation test devices, more particularly to a kind of ground with disc spring compensation function for sealing drum
Experimental rig.
Background technique
Sealing drum is a kind of sealing element generally used in industrial products, is generally made of rubber type of material.According to it
The difference of application field is also different to the performance requirement of sealing drum.It is said by taking downhole tool packer sealing cylinder as an example below
It is bright:
Packer sealing cylinder is in heavy crude heat extraction using very extensive core component.Packer sealing cylinder uses at the scene
In the process, it sets, unseal flexibly, reliably, packer sealing cylinder deforms small, lasting carrying under the action of upper and lower pressure difference and high temperature
Ability is strong, can just play packing oil jacket annulus and guarantee the purpose that job execution is gone on smoothly.Therefore, packer sealing cylinder is in height
Sealability in warm, high pressure operating environment is to measure the key technical index of packer performance.
Currently, directly carrying out the annular space leakage test of annular space sealing drum under high temperature and pressure on the ground using packer.
Due to the accuracy design feature of packer itself, determining it, not only cost of manufacture is high, land occupation is big, but also to the operator of dismounting
Technical operation standard it is more demanding.After packer often only carries out an annular space leakage test, it can only be reported due to dismantling not open
It is useless, lead to experimentation cost height.In addition it before and after ground is done experiment, also needs to carry out packer many and diverse dismounting work, this gives
Ground experiment brings certain difficulty, is unfavorable in a wide range of interior popularization.
Summary of the invention
Aiming to overcome that the above problem or at least being partially solved or extenuate for the application solves the above problems.
This application provides a kind of ground experiment device with disc spring compensation function, for test sealing drum setting force and
Sealing performance under room temperature, high pressure and high temperature, condition of high voltage after the completion of it sets characterized by comprising
Central tube is used as installation foundation, with install in the sealing drum and the ground simulation test device other zero
Part；
First thrust assemblies are configured to along one end of the central tube to another for being mounted on one end of the central tube
One end provides unilateral thrust and can only move along the unilateral thrust direction, to realize that the single side of the sealing drum tests envelope；
Second thrust assemblies are configured for being mounted at the central tube, the sealing drum and first thrust assemblies
At in the case where first thrust assemblies generate the unilateral thrust, second thrust assemblies are along the another of the central tube
One end provides thrust to one end, so that sealing drum realization is set, and maintains the stabilization of setting force, is configured to described
In the state that sealing drum has been set, realize that the two-sided of the sealing drum tests envelope；
Hydraulic test pump, for providing highly pressurised liquid to first thrust assemblies or second thrust assemblies；
Connecting line is also used to and first thrust assemblies or second thrust for connecting with the hydraulic test pump
Component connection, to convey the highly pressurised liquid；With
Heating element, for being mounted on the outside of part corresponding with the sealing drum in second thrust assemblies,
For heating the sealing drum, to test the sealing performance of the sealing drum at high temperature.
Optionally, the central tube is the pipe of inner hollow, and the central tube is equipped with boss close to the position at middle part, described
Along the direction of one end to the other end in central tube, first segment and second segment, the first segment, the boss are divided by the boss
And the second segment is used to install first thrust assemblies, office at the position of the close boss in the outer wall of the first segment
Portion is equipped with outer gingival cyst of mucous gland in the newborn spiral shell button, and for forming gingival cyst of mucous gland in the newborn connection structure with first thrust assemblies, the second segment is for installing institute
Sealing drum and second thrust assemblies are stated, are equipped with radial through-hole at the position of the boss in the second segment, with
Pass through the highly pressurised liquid.
Optionally, first thrust assemblies include:
Top connection, have axially through internal cavities, for by the highly pressurised liquid, one end of the top connection to have
There is inside tapered thread, for connecting the connecting line, the other end of the top connection has internal screw thread, for connecting the center
Pipe；
Lock ring seat covers at the first segment of the central tube at the position of the top connection, the lock ring seat
There is outer connection screw thread at outer wall；
Lock ring, one end for being mounted in the lock ring seat close to the boss, and supported with lock ring seat formation
The inner wall of structure, the lock ring has interior gingival cyst of mucous gland in the newborn spiral shell button, and the interior gingival cyst of mucous gland in the newborn spiral shell button matches with the outer gingival cyst of mucous gland in the newborn spiral shell button；
Lock ring set, one end is used to cover the outside in the lock ring seat and the lock ring, and forms abutting structure, institute with them
The inner wall for stating one end of lock ring set is equipped with interior connection screw thread, and matching to be formed with the outer connection screw thread of the lock ring seat is threadedly coupled knot
The outer wall of structure, the other end is equipped with outer connection screw thread；With
Piston, for covering the outside of the first segment in the central tube, boss and second segment, the internal piston is hollow,
The inner wall of the piston is radially equipped with inside protrusion close to one end of the boss, and the protrusion can the relatively described center
The outer wall of the second segment of pipe slides, and the piston and the central tube form the first sealing at the projection position of the piston
Chamber, the first annular seal space are connected to the through-hole of the central tube, and the first annular seal space is for storing the highly pressurised liquid, institute
It states and is equipped with interior connection screw thread at the inner wall of the other end of piston, matching to be formed with the outer connection screw thread of lock ring set is threadedly coupled
Structure；
Wherein, the lock ring be equipped with axially through gap, for the piston apply thrust when internal diameter expand with more
The outer gingival cyst of mucous gland in the newborn spiral shell button is crossed, between the boss of the central tube and the piston, the protrusion of the piston and the central tube
Sealing structure is correspondingly provided between second segment.
Optionally, the sealing structure between the boss of the central tube and the piston is be mounted on the central tube convex
O-ring seal at platform, the sealing structure between the protrusion of the piston and the second segment of the central tube are described to be mounted on
The O-ring seal of the prominence of piston.
Optionally, second thrust assemblies include:
Casing, for covering in the outside of first thrust assemblies, the sealing drum and the central tube, for described
Sealing drum radial dimension is in contact with it when becoming larger, to realize setting for the sealing drum, described sleeve pipe and the first thrust group
Cavity is formed between part, the sealing drum and the central tube, is corresponded in described sleeve pipe and is equipped at the second segment of the central tube
Radial through-hole, for connecting the connecting line, the through-hole is connected with the cavity；
Upper pressing cap, one end for being socketed in described sleeve pipe close to first thrust assemblies, and it is solid with described sleeve pipe
Fixed connection, be equipped in the upper pressing cap axially through hole, for passing through the connecting line；
Disc spring forms abutting structure with the sealing drum, is used for for covering in the outside of the second segment of the central tube
In the case that first thrust assemblies generate the unilateral thrust, the another of the central tube is produced from along the axial direction of the disc spring
Setting for the sealing drum is realized to the thrust of one end in one end, and maintains the stabilization of setting force；
Lower contact is open at one end, the closed end cap of the other end, installs the disc spring for being mounted in the central tube
One end, and be fixedly connected with the central tube；With
Bottom cover for covering one end in described sleeve pipe close to the lower contact, and is fixedly connected with described sleeve pipe；
Wherein, the second seal chamber is formed between the bottom cover, the lower contact, the disc spring and the sealing drum, it is described
Second seal chamber is connected to the through-hole of described sleeve pipe, and second seal chamber is for accommodating the highly pressurised liquid, described in realizing
Two-sided under the state that sets of sealing drum tests envelope.
Optionally, second thrust assemblies further include:
Baffle ring, for covering in the outside of the central tube, and between the disc spring and the lower contact, and with it is described
Disc spring and the lower contact form abutting structure, and the middle part of the baffle ring is equipped with the positioning convex platform of radially evagination, for guaranteeing
The concentricity of described sleeve pipe and the sealing drum；With
Retaining ring, for covering in the outside of the central tube, and between the disc spring and the sealing drum, and with it is described
Disc spring and the sealing drum form abutting structure.
Optionally, the bottom cover is screwed by sealing with described sleeve pipe and is connect.
Optionally, the connecting line is equipped with pressure gauge, ball valve and needle-valve.
Optionally, overflow valve is additionally provided on the connecting line.
Optionally, the overflow valve, the needle-valve, the ball valve and the pressure gauge according to highly pressurised liquid flow direction
It is arranged on the connecting line.
The ground experiment device with disc spring compensation function of the application, by including central tube, the first thrust assemblies, second
The simple mechanism of thrust assemblies, hydraulic test pump and connecting line structure composition, can accurate simulation packer annular space sealing drum high temperature,
Annular space sealing effect under the operating condition of high pressure, while also having the advantages that structure is simple, take up little area, is at low cost, is easy to disassemble.
According to the accompanying drawings to the detailed description of the specific embodiment of the application, those skilled in the art will be more
Above-mentioned and other purposes, the advantages and features of the application are illustrated.
Detailed description of the invention
Some specific embodiments of the application are described in detail by way of example and not limitation with reference to the accompanying drawings hereinafter.
Identical appended drawing reference denotes same or similar part or part in attached drawing.It should be appreciated by those skilled in the art that these
What attached drawing was not necessarily drawn to scale.In attached drawing:
Fig. 1 is the schematic structure according to the ground simulation test device for sealing drum of the application one embodiment
Figure.
Each symbol indicates that meaning is as follows in figure:
The 100 ground experiment devices with disc spring compensation function,
1 upper pressing cap, 2 casings, 3 lock ring seats, 4 lock rings, 5 lock ring sets, 6 central tubes, 7 pistons, 8 sealing drums, 9 disc springs, 10 add
Thermal element, 11 baffle rings, 12 lower contacts, 13 bottom covers, 14 top connections, 15 hydraulic test pumps, 16 connecting lines, 17 overflow valves, 18 pressure gauges,
19 ball valves, 20 needle-valves, 21O type sealing ring, 22 inside tapered threads, 23 outer gingival cyst of mucous gland in the newborn spiral shell buttons, gingival cyst of mucous gland in the newborn spiral shell button in 24,25 are threadedly coupled knot
Structure, 26 retaining rings,
61 boss, 62 first segments, 63 second segments, 71 protrusions, 111 positioning convex platforms, 141 internal cavities,
A first annular seal space, the second seal chamber of B, C through-hole, the first thrust assemblies of D, the second thrust assemblies of E.
Specific embodiment
Fig. 1 is the schematic structure according to the ground simulation test device for sealing drum of the application one embodiment
Figure.A kind of ground experiment device 100 with disc spring compensation function is present embodiments provided, for testing the setting force of sealing drum 8
And its sealing performance after the completion of setting under room temperature, high pressure and high temperature, condition of high voltage, which is characterized in that generally may include:
Central tube 6, the first thrust assemblies D, the second thrust assemblies E, hydraulic test pump 15 and connecting line 16.Central tube 6 is used as installation foundation,
To install the other parts in the sealing drum 8 and the ground simulation test device.First thrust assemblies D is for being mounted on institute
The one end for stating central tube 6 is configured to provide unilateral thrust and only can be along the list to the other end along one end of the central tube 6
It is mobile to thrust direction, to realize that the single side of the sealing drum 8 tests envelope.Second thrust assemblies E is for being mounted on the central tube
6, it at the sealing drum 8 and the first thrust assemblies D, is configured to generate the unilateral thrust in the first thrust assemblies D
In the case where, the second thrust assemblies E provides thrust to one end along the other end of the central tube 6, so that the sealing
Cylinder 8 is realized and is set, and maintains the stabilization of setting force, is configured in the state that the sealing drum 8 has been set, and is realized described close
The two-sided of sealed tube 8 tests envelope.Hydraulic test pump 15 is used to provide high pressure liquid to the first thrust assemblies D or described second thrust assemblies E
Body.Connecting line 16 is also used to and second thrust of the first thrust assemblies D or described group for connecting with the hydraulic test pump 15
Part E connection, to convey the highly pressurised liquid.Heating element 10 is for being mounted in the second thrust assemblies E and the sealing
The outside of 8 corresponding parts of cylinder carrys out simulation oil well temperature, is existed with testing the sealing drum 8 for heating the sealing drum 8
Sealing performance under high temperature.
The ground experiment device 100 with disc spring compensation function of the application, by central tube 6 install the first thrust assemblies D,
Second thrust assemblies E and sealing drum 8 provide highly pressurised liquid by hydraulic test pump 15, by 16 conveying high-pressure liquid of connecting line, lead to
Crossing highly pressurised liquid drives the first thrust assemblies D to realize that the single side of sealing drum 8 tests envelope, maintains setting force by the second thrust assemblies E
Stabilization, drive the second thrust assemblies E to realize by highly pressurised liquid and two-sided test envelope.Make the application that there is knot by above structure
The simple effect of structure.High temperature, the high-pressure ground of annular space sealing drum 8 directly are carried out on ground with packer since the application can remove from
Simulation test also eliminates the need the works such as many and diverse dismounting with packer before and after ground is done experiment this not only lowers experimentation cost
Make and takes up little area.The application also overcomes previous surface annulus sealing simulation test device and can not unseal after the end of the test, needs
The problem of deblocking is forced by mechanical equipment with manpower.Therefore, the application energy accurate simulation packer annular space sealing drum 8 is in height
Annular space sealing effect under temperature, the operating condition of high pressure, to examine every major technique of the sealing drum 8 under the action of high temperature, high pressure
Index, to ensure that the use quality that sealing drum 8 dispatches from the factory.Simultaneously the application also have structure is simple, take up little area, is at low cost,
Advantage easy to disassemble.
In addition, inventor sets under compressive state during realizing the application it is also found that: being in the prior art
Under long-term high temperature and high pressure double acting, resilience is deteriorated packer annular space sealing drum than under normal temperature state.At this moment, because
Non-displacement compensation device, so that 8 annular space sealing performance of annular space sealing drum is deteriorated, to will cause the sealing of 8 annular space of annular space sealing drum
Failure.
And the application generates the feelings of the unilateral thrust in the first thrust assemblies D by being configured to the second thrust assemblies E
Under condition, the second thrust assemblies E provides thrust to one end along the other end of central tube 6, to maintain the stabilization of setting force, avoids existing
There is the problem of annular space sealing drum annular space seal failure in technology.
In the present embodiment, the central tube 6 is the pipe of inner hollow.The central tube 6 is equipped with convex close to the position at middle part
Platform 61.Along the direction of one end to the other end in the central tube 6, divided by the boss 61 for first segment 62 and second segment 63.Institute
First segment 62, the boss 61 and the second segment 63 are stated for installing the first thrust assemblies D.Outside the first segment 62
It is locally equipped with outer gingival cyst of mucous gland in the newborn spiral shell button 23 at the position of the boss 61 in wall, is used for the first thrust assemblies D-shaped into horse
Tooth connection structure.The second segment 63 is for installing the sealing drum 8 and the second thrust assemblies E.In the second segment 63
It is equipped with radial through-hole, at the position of the boss 61 to pass through the highly pressurised liquid.
In the present embodiment, the first thrust assemblies D includes: top connection 14, lock ring seat 3, lock ring 4, lock ring set 5 and piston
7.Top connection 14 have axially through internal cavities, for pass through the highly pressurised liquid.One end of the top connection 14 has
Inside tapered thread 22, for connecting the connecting line 16, the other end of the top connection 14 has internal screw thread, described for connecting
Central tube 6.3 sets of lock ring seat at the first segment 62 of the central tube 6 in close to the top connection 14 position at.The lock ring
There is outer connection screw thread at the outer wall of seat 3.Lock ring 4 is used to be mounted on one end in the lock ring seat 3 close to the boss 61, and
Abutting structure is formed with the lock ring seat 3.The inner wall of the lock ring 4 has an interior gingival cyst of mucous gland in the newborn spiral shell button 24, the interior gingival cyst of mucous gland in the newborn spiral shell button 24 with
The outer gingival cyst of mucous gland in the newborn spiral shell button 23 matches.One end of lock ring set 5 is used to cover outside in the lock ring seat 3 and the lock ring 4, and with
They form abutting structure.The inner wall of one end of the lock ring set 5 is equipped with interior connection screw thread, the outer connection with the lock ring seat 3
Screw thread matches to form screw connection structure 25.More specifically, screw connection structure 25 has been all made of easy-to-mount T shape screw thread.
The outer wall of the other end of the lock ring set 5 is equipped with outer connection screw thread.Piston 7 is used to cover the first segment 62, convex in the central tube 6
The outside of platform 61 and second segment 63.7 inner hollow of piston.The inner wall of the piston 7 is close to one end edge of the boss 61
It is radially provided with inside protrusion 71, the protrusion 71 can the relatively described central tube 6 second segment 63 outer wall sliding.The work
Plug 7 and the central tube 6 form first annular seal space A at 71 position of protrusion of the piston 7.The first annular seal space A and institute
State the through-hole connection of central tube 6.The first annular seal space A can accommodate the highly pressurised liquid.The inner wall of the other end of the piston 7
Place is equipped with interior connection screw thread, matches to form screw connection structure 25 with the outer connection screw thread of lock ring set 5.More specifically, spiral shell
Line connection structure 25 has been all made of easy-to-mount T shape screw thread.Wherein, the lock ring 4 be equipped with axially through gap, for
Internal diameter expands to cross the outer gingival cyst of mucous gland in the newborn spiral shell button 23 when the piston 7 applies thrust.The boss 61 of the central tube 6 and the work
Sealing structure is correspondingly provided between plug 7, between the protrusion 71 of the piston 7 and the second segment 63 of the central tube 6.
More specifically, the sealing structure between the boss 61 and the piston 7 of the central tube 6 is peace in the present embodiment
O-ring seal 21 at the boss 61 of the central tube 6, the second segment of the protrusion 71 of the piston 7 and the central tube 6
Sealing structure between 63 is the O-ring seal 21 being mounted at the protrusion 71 of the piston 7.
In the present embodiment, the second thrust assemblies E includes: casing 2, upper pressing cap 1, disc spring 9, lower contact 12 and bottom cover
13.Casing 2 is for covering in the outside of the first thrust assemblies D, the sealing drum 8 and the central tube 6, for described close
8 radial dimension of sealed tube is in contact with it when becoming larger, to realize setting for the sealing drum 8.Described sleeve pipe 2 and the first thrust group
Cavity is formed between part D, the sealing drum 8 and the central tube 6.The second segment 63 of the central tube 6 is corresponded in described sleeve pipe 2
Place is equipped with radial through-hole, and for connecting the connecting line 16, the through-hole is connected with the cavity.Upper pressing cap 1 is used for
It is socketed in one end in described sleeve pipe 2 close to the first thrust assemblies D, and is fixedly connected with described sleeve pipe 2.The upper pressing cap
In 1 be equipped with axially through hole, for pass through the connecting line 16.Disc spring 9 is used to cover the second segment 63 in the central tube 6
Outside, with the sealing drum 8 formed abutting structure, for generating the feelings of the unilateral thrust in the first thrust assemblies D
Under condition, the other end of the central tube 6 is produced to the thrust of one end along the axial direction of the disc spring 9, realizes the sealing drum 8
The compressing force to the left for setting, and generating after being compressed by disc spring 9 maintains the stabilization of setting force.Lower contact 12 is opened for one end
Mouthful, the closed end cap of the other end, for being mounted on the one end for installing the disc spring 9 in the central tube 6, and with the central tube
6 are fixedly connected.Bottom cover 13 is used to cover one end in described sleeve pipe 2 close to the lower contact 12, and fixes and connect with described sleeve pipe 2
It connects.Wherein, the second seal chamber B is formed between the bottom cover 13, the lower contact 12, the disc spring 9 and the sealing drum 8.Institute
It states the second seal chamber B to be connected to the through-hole of described sleeve pipe 2, the second seal chamber B is for accommodating the highly pressurised liquid, to realize
Two-sided under the state that sets of the sealing drum 8 tests envelope.
In the present embodiment, by 9 compression displacement compensation function of disc spring, packer annular space sealing drum 8 can be greatly reduced and existed
Annular space seal failure problem under high temperature, high pressure double action.
During realizing the application, inventors have found that the outer circle of sealing drum 8 is not very round, if 2 sets of casing existed
The outside of sealing drum 8, this will cause the bias when setting of annular space sealing drum 8, influences the annular space sealing performance of annular space sealing drum 8.
In the present embodiment, the second thrust assemblies E further include: baffle ring 11 and retaining ring 26.Baffle ring 11 is for covering described
The outside of central tube 6, and between the disc spring 9 and the lower contact 12, and with 12 shape of the disc spring 9 and the lower contact
At abutting structure.The middle part of the baffle ring 11 is equipped with the positioning convex platform 111 of radially evagination, for guaranteeing described sleeve pipe 2 and institute
State the concentricity of sealing drum 8.Retaining ring 26 is located at the disc spring 9 and the sealing drum for covering in the outside of the central tube 6
Between 8, and abutting structure is formed with the disc spring 9 and the sealing drum 8.
In the present embodiment, annular space sealing drum 8 carries out concentricity positioning using the positioning convex platform 111 of baffle ring 11, it is ensured that ring
The concentricity requirement of empty sealing drum 8 and casing 2 solves the bias when setting of annular space sealing drum 8, influences annular space sealing drum 8
The defect of annular space sealing performance.
In the present embodiment, the bottom cover 13 is screwed by sealing with described sleeve pipe 2 and is connect.
In the present embodiment, the connecting line 16 is equipped with pressure gauge 18, ball valve 19 and needle-valve 20.More specifically, this reality
It applies in example, is additionally provided with overflow valve 17 on the connecting line 16.Overflow valve 17 is used to ensure first annular seal space A, the second seal chamber B
Pressure without departing from setting value.Further, the overflow valve 17, the needle-valve 20, the ball valve 19 and the pressure gauge
18 are arranged on the connecting line 16 according to the flow direction of highly pressurised liquid.The preferred electric pressure test pump of hydraulic test pump 15.
The working principle of the application:
Firstly, the high pressure water as caused by hydraulic test pump 15 passes through central tube along arrow direction by connecting line 16
6 enter first annular seal space A.Under the action of high pressure water, into first annular seal space A high pressure water push protrusion 71 move right into
And move right with piston 7, since piston 7 and lock ring set 5 are to be connected through a screw thread integral and lock ring seat 3 and lock ring set
5 be also be connected through a screw thread it is integral, so lock ring 4 also moves right.Since lock ring 4 is open and clear mouth, moving right
The internal diameter of lock ring 4 expands and buckles the interior gingival cyst of mucous gland in the newborn of its institute's band and crosses the outer gingival cyst of mucous gland in the newborn spiral shell of the outer diameter institute band of central tube 6 and buckle 23 in the process
It moves right.Lock ring 4 can only move right under the engagement constraint of interior gingival cyst of mucous gland in the newborn spiral shell button 24 and outer gingival cyst of mucous gland in the newborn spiral shell button 23, cannot be to the left
It retracts.This, which makes piston 7 that sealing drum 8 be pushed also to move right, keeps its axial dimension compressed simultaneously, also moves right, with this
Meanwhile the disc spring 9 axial also extruding by sealing drum 8, axial dimension become smaller, and generate axial compressive force (referred to as dish to the left
9 accumulation of energy of spring).Under acting on while left axle is to right axial force, the axial dimension of sealing drum 8 becomes smaller.According to constancy of volume
The radial dimension of principle, sealing drum 8 becomes larger, this is in close contact the outer wall of the inner wall of sealing drum 8 and casing 2 and central tube 6 simultaneously
It is set with this to realize.After the completion of setting, under the engagement constraint effect of interior gingival cyst of mucous gland in the newborn spiral shell button 24 and outer gingival cyst of mucous gland in the newborn spiral shell button 23, this makes
Piston 7 cannot be moved to the left, and at this moment be unloaded to the high pressure water of first annular seal space A.After first annular seal space A pressure release, set
Power is remained unchanged by the gingival cyst of mucous gland in the newborn button of the interior external toothing of lock ring 4, central tube 6.As caused by hydraulic test pump 15 and connecting line 16
High pressure water is by entering the second seal chamber B from through-hole C along direction shown in arrow.First annular seal space A or the second seal chamber B exists
High pressure water, can room temperature, pressure maintaining after a certain period of time, 8 ring of sealing drum can be detected by the variation of external 18 pointer of pressure gauge
The effect of sky sealing.The above are room temperature, high-potting.After room temperature, high-potting are qualified, then carry out high temperature, high-potting.It is former
Reason is same as above, and only heating element 10, which need to be powered, is heated up to simulate the worst hot case of sealing ring.
The setting force of the application can only be unidirectionally advanced using possessed by interior gingival cyst of mucous gland in the newborn spiral shell button 24 and outer gingival cyst of mucous gland in the newborn spiral shell button 23, no
What the property that can be retreated generated, the setting force production principle of this and practical packer be it is completely the same, can truly mould
Actual condition of the packer in oil well is drawn up, fidelity is high, and error is small, and test result is reliable.
When specific test, the first annular seal space A, pressure 28MPa, maximum temperature are not higher than 350 DEG C.Described second
Seal chamber B, pressure 20MPa, maximum temperature are not higher than 350 DEG C.The heating element 10 is heating mantle and 2 outer diameter phase of casing
Contact.
The test process of the application: start to carry out after assembling the ground experiment device 100 with disc spring compensation function by Fig. 1
Test, is connected hydraulic test pump 15 with first annular seal space A by central tube 6 by connecting line 16 first.After connecting, it is forced into
Pressure gauge 18 is shown as valve of blinding off a line when 28MPa.After pressure gauge 18 shows that pressure is stablized, opening valve, which unloads, is depressed into pressure
Table 18 is shown as zero.Dismantling connection pipeline 16 is simultaneously connect with the second seal chamber B, and hydraulic test pump 15 is by connecting line 16 again with second
Seal chamber B connection, is forced into pressure gauge 18 and is shown as valve of blinding off a line when 20MPa.It is heated later by heating element 10 close
Chamber temperature is sealed to 350 DEG C.During heating, pressure is controlled in 20MPa by overflow valve 17.In the second seal chamber B temperature
Maintain 350 DEG C, in the case that pressure is maintained at 20MPa, test period need to be kept 15-30 days.It is protected in this period such as temperature
It holds constant, pressure maintenance not drop, i.e., it is believed that the standard that packer sealing cylinder 8 can reach a high temperature, high pressure is not revealed regulation is wanted
It asks and terminates to test.
The application can also be used in the pressure difference up and down of packer sealing cylinder 8 with the ground experiment device 100 of disc spring compensation function
Test, fatigue test, removing seal for packer pull test, details are not described herein.
As it can be seen that can accurately, truly to simulate annular space close for the ground experiment device 100 with disc spring compensation function of the application
It is actual condition of the sealed tube 8 in packer, again easy to disassemble, and be able to achieve viscous crude and need to exploit under high temperature and pressure, improve
The particular/special requirement of recovery ratio, this makes the application promote with value in relevant industries.
It should be noted that unless otherwise indicated, technical term or scientific term used in this application should be this Shen
It please the ordinary meaning that is understood of one of ordinary skill in the art.
In the description of the present application, it is to be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or
Positional relationship is merely for convenience of description the application and simplifies description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore should not be understood as the limitation to the application.
In addition, term " first ", " second " etc. are used for description purposes only, it is not understood to indicate or imply relatively important
Property or implicitly indicate the quantity of indicated technical characteristic.In the description of the present application, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
In this application unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in this application.
In this application unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
The preferable specific embodiment of the above, only the application, but the protection scope of the application is not limited thereto,
Within the technical scope of the present application, any changes or substitutions that can be easily thought of by anyone skilled in the art,
Should all it cover within the scope of protection of this application.Therefore, the protection scope of the application should be with scope of protection of the claims
Subject to.
Claims (10)
1. a kind of ground experiment device with disc spring compensation function, which is characterized in that for test sealing drum setting force and its
Sealing performance after the completion of setting under room temperature, high pressure and high temperature, condition of high voltage characterized by comprising
Central tube is used as installation foundation, to install the other parts in the sealing drum and the ground simulation test device；
First thrust assemblies are configured to along one end of the central tube to the other end for being mounted on one end of the central tube
Unilateral thrust is provided and can only be moved along the unilateral thrust direction, to realize that the single side of the sealing drum tests envelope；
Second thrust assemblies are configured to for being mounted at the central tube, the sealing drum and first thrust assemblies
In the case that first thrust assemblies generate the unilateral thrust, the other end of second thrust assemblies along the central tube
Thrust is provided to one end, so that sealing drum realization is set, and the stabilization of setting force is maintained, is configured in the sealing
In the state that cylinder has been set, realize that the two-sided of the sealing drum tests envelope；
Hydraulic test pump, for providing highly pressurised liquid to first thrust assemblies or second thrust assemblies；
Connecting line is also used to and first thrust assemblies or second thrust assemblies for connecting with the hydraulic test pump
Connection, to convey the highly pressurised liquid；With
Heating element is used for for being mounted on the outside of part corresponding with the sealing drum in second thrust assemblies
The sealing drum is heated, to test the sealing performance of the sealing drum at high temperature.
2. ground experiment device according to claim 1, which is characterized in that the central tube is the pipe of inner hollow, institute
It states central tube and is equipped with boss close to the position at middle part, along the direction of one end to the other end in the central tube, by the boss point
For first segment and second segment, the first segment, the boss and the second segment are described for installing first thrust assemblies
It is locally equipped with outer gingival cyst of mucous gland in the newborn spiral shell button at the position of the boss in the outer wall of first segment, is used for and the first thrust assemblies shape
At gingival cyst of mucous gland in the newborn connection structure, the second segment leans in the second segment for installing the sealing drum and second thrust assemblies
It is equipped with radial through-hole at the position of the nearly boss, to pass through the highly pressurised liquid.
3. ground experiment device according to claim 2, which is characterized in that first thrust assemblies include:
Top connection, have axially through internal cavities, for by the highly pressurised liquid, one end of the top connection to have interior
Taper thread, for connecting the connecting line, the other end of the top connection has internal screw thread, for connecting the central tube；
Lock ring seat covers at the first segment of the central tube at the position of the top connection, the outer wall of the lock ring seat
Place has outer connection screw thread；
Lock ring, one end for being mounted in the lock ring seat close to the boss, and abutting structure is formed with the lock ring seat,
The inner wall of the lock ring has interior gingival cyst of mucous gland in the newborn spiral shell button, and the interior gingival cyst of mucous gland in the newborn spiral shell button matches with the outer gingival cyst of mucous gland in the newborn spiral shell button；
Lock ring set, one end is used to cover the outside in the lock ring seat and the lock ring, and forms abutting structure, the lock with them
The inner wall of one end of ring set is equipped with interior connection screw thread, matches to form screw connection structure with the outer connection screw thread of the lock ring seat,
The outer wall of the other end is equipped with outer connection screw thread；With
Piston, for covering the outside of the first segment in the central tube, boss and second segment, the internal piston is hollow, described
The inner wall of piston is radially equipped with inside protrusion close to one end of the boss, and the protrusion can the relatively described central tube
The outer wall of second segment slides, and the piston and the central tube form first annular seal space, institute at the projection position of the piston
It states first annular seal space to be connected to the through-hole of the central tube, the first annular seal space is for storing the highly pressurised liquid, the work
Interior connection screw thread is equipped at the inner wall of the other end of plug, matching to be formed with the outer connection screw thread of lock ring set is threadedly coupled knot
Structure；
Wherein, the lock ring be equipped with axially through gap, for the piston apply thrust when internal diameter expand to cross
State outer gingival cyst of mucous gland in the newborn spiral shell button, between the boss of the central tube and the piston, the protrusion of the piston and the central tube second
Sealing structure is correspondingly provided between section.
4. ground experiment device according to claim 3, which is characterized in that the boss of the central tube and the piston it
Between sealing structure be the O-ring seal being mounted at the boss of the central tube, the protrusion of the piston and the central tube
Second segment between sealing structure be to be mounted on the O-ring seal of the prominence of the piston.
5. ground experiment device according to claim 2, which is characterized in that second thrust assemblies include:
Casing, for covering in the outside of first thrust assemblies, the sealing drum and the central tube, in the sealing
Barrel dliameter when becoming large-sized to being in contact with it, to realize setting for the sealing drum, described sleeve pipe and first thrust assemblies, institute
It states and forms cavity between sealing drum and the central tube, corresponded in described sleeve pipe and be equipped with radial direction at the second segment of the central tube
Through-hole, for connecting the connecting line, the through-hole is connected with the cavity；
Upper pressing cap, one end for being socketed in described sleeve pipe close to first thrust assemblies, and fix and connect with described sleeve pipe
Connect, in the upper pressing cap be equipped with axially through hole, for pass through the connecting line；
Disc spring forms abutting structure with the sealing drum, for described for covering in the outside of the second segment of the central tube
In the case that first thrust assemblies generate the unilateral thrust, the other end of the central tube is produced from along the axial direction of the disc spring
To the thrust of one end, setting for the sealing drum is realized, and maintain the stabilization of setting force；
Lower contact is open at one end, the closed end cap of the other end, installs the one of the disc spring for being mounted in the central tube
End, and be fixedly connected with the central tube；With
Bottom cover for covering one end in described sleeve pipe close to the lower contact, and is fixedly connected with described sleeve pipe；
Wherein, the second seal chamber is formed between the bottom cover, the lower contact, the disc spring and the sealing drum, described second
Seal chamber is connected to the through-hole of described sleeve pipe, and second seal chamber is for accommodating the highly pressurised liquid, to realize the sealing
Two-sided under the state that sets of cylinder tests envelope.
6. ground experiment device according to claim 5, which is characterized in that second thrust assemblies further include:
Baffle ring, for covering in the outside of the central tube, and between the disc spring and the lower contact, and with the disc spring
Abutting structure is formed with the lower contact, the middle part of the baffle ring is equipped with the positioning convex platform of radially evagination, described for guaranteeing
The concentricity of casing and the sealing drum；With
Retaining ring, for covering in the outside of the central tube, and between the disc spring and the sealing drum, and with the disc spring
Abutting structure is formed with the sealing drum.
7. ground experiment device according to claim 5, which is characterized in that the bottom cover and described sleeve pipe pass through sealing spiral shell
Line is fixedly connected.
8. ground experiment device described in any one of -7 according to claim 1, which is characterized in that the connecting line is equipped with
Pressure gauge, ball valve and needle-valve.
9. ground experiment device according to claim 8, which is characterized in that be additionally provided with overflow valve on the connecting line.
10. ground experiment device according to claim 9, which is characterized in that the overflow valve, the needle-valve, the ball
Valve and the pressure gauge are arranged on the connecting line according to the flow direction of highly pressurised liquid.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811427922.5A CN109297655B (en) | 2018-11-27 | 2018-11-27 | Ground test device with disc spring compensation function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811427922.5A CN109297655B (en) | 2018-11-27 | 2018-11-27 | Ground test device with disc spring compensation function |
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| CN109297655B CN109297655B (en) | 2023-12-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110057512A (en) * | 2019-05-16 | 2019-07-26 | 天鼎联创密封技术（北京）有限公司 | With disc spring bit shift compensation and double ground simulation test devices for testing envelope function |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4917187A (en) * | 1989-01-23 | 1990-04-17 | Baker Hughes Incorporated | Method and apparatus for hydraulically firing a perforating gun below a set packer |
| JP2011043465A (en) * | 2009-08-24 | 2011-03-03 | Central Res Inst Of Electric Power Ind | Hydraulic testing apparatus with packer integrated therein |
| CN104165054A (en) * | 2013-05-17 | 2014-11-26 | 中国石油化工股份有限公司 | Testing device and method for detecting performance of locking mechanism of packer |
| CN104568418A (en) * | 2015-01-22 | 2015-04-29 | 四机赛瓦石油钻采设备有限公司 | Packer performance detecting device |
| CN204422184U (en) * | 2015-01-30 | 2015-06-24 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | External casing packer test unit |
| CN204731109U (en) * | 2015-07-06 | 2015-10-28 | 中国海洋石油总公司 | The performance testing device of packing element |
| CN206146755U (en) * | 2016-09-18 | 2017-05-03 | 中国石油化工股份有限公司 | High temperature pressurization section of thick bamboo performance testing device |
| CN108663176A (en) * | 2018-06-20 | 2018-10-16 | 天鼎联创密封技术（北京）有限公司 | Ground simulation test device for sealing drum |
| CN209043556U (en) * | 2018-11-27 | 2019-06-28 | 天鼎联创密封技术（北京）有限公司 | Ground experiment device with disc spring compensation function |
-
2018
- 2018-11-27 CN CN201811427922.5A patent/CN109297655B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4917187A (en) * | 1989-01-23 | 1990-04-17 | Baker Hughes Incorporated | Method and apparatus for hydraulically firing a perforating gun below a set packer |
| JP2011043465A (en) * | 2009-08-24 | 2011-03-03 | Central Res Inst Of Electric Power Ind | Hydraulic testing apparatus with packer integrated therein |
| CN104165054A (en) * | 2013-05-17 | 2014-11-26 | 中国石油化工股份有限公司 | Testing device and method for detecting performance of locking mechanism of packer |
| CN104568418A (en) * | 2015-01-22 | 2015-04-29 | 四机赛瓦石油钻采设备有限公司 | Packer performance detecting device |
| CN204422184U (en) * | 2015-01-30 | 2015-06-24 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | External casing packer test unit |
| CN204731109U (en) * | 2015-07-06 | 2015-10-28 | 中国海洋石油总公司 | The performance testing device of packing element |
| CN206146755U (en) * | 2016-09-18 | 2017-05-03 | 中国石油化工股份有限公司 | High temperature pressurization section of thick bamboo performance testing device |
| CN108663176A (en) * | 2018-06-20 | 2018-10-16 | 天鼎联创密封技术（北京）有限公司 | Ground simulation test device for sealing drum |
| CN209043556U (en) * | 2018-11-27 | 2019-06-28 | 天鼎联创密封技术（北京）有限公司 | Ground experiment device with disc spring compensation function |
Non-Patent Citations (1)
| Title |
|---|
| 顾启林;孙永涛;李啸南;马增华;王通;胡厚猛;: "X441-210型热采封隔器的研制与室内试验", 石油机械, no. 02 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110057512A (en) * | 2019-05-16 | 2019-07-26 | 天鼎联创密封技术（北京）有限公司 | With disc spring bit shift compensation and double ground simulation test devices for testing envelope function |
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| CN109297655B (en) | 2023-12-22 |
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