A kind of packing element brief test device of achievable high/low temperature alternation environment
Technical field
Oil gas water well downhole packer seal assembly experimental tool is the utility model is related to, it is more particularly to a kind of that height can be achieved
The packing element brief test device of low temperature alternation environment.
Background technology
Packer is widely used in the mines such as drilling well, well cementation, production of hydrocarbons well, is applied especially in producing well.It is one
Kind is cheap, is widely used, the downhole packing instrument of reliable operation, such packer must possess production passage, exhaust is led to
The passage lanes in road and tiny pipeline.Conventional high temperature downhole packer is expensive at present and job insecurity, in high temperature ring
Because of seal failure when being applied under border, and packer is caused not work.
High-temperature packer species is many at present, is limited to the requirement of experimental situation, the related experiment of high-temperature packer packing element
It can not be carried out in laboratory, it is of high cost, dangerous big if carrying out packer integral experiment or being tested at the scene, limit
Packing element is evaluated and screening.
Utility model content
The purpose of the utility model is to overcome deficiency of the prior art, there is provided a kind of achievable high/low temperature alternation environment
Packing element brief test device, solving packing element can not be in experiment inside authentication hot environment seal performance energy.This
Kind experimental rig can carry out the functional simulation under high temperature, condition of high voltage to packing element, it may be verified that packing element
Leakproofness and security, theoretical and data foundation is provided for offshore oilfield mining site operation.
Technical solution is used by the utility model:A kind of packing element of achievable high/low temperature alternation environment is simple
Experimental rig, including for suppressing setting mechanism that is setting and unsealing and take out packing element for packing element, for protecting
Hinder the setting locking mechanism with offer safety guarantee of packing element, and setting rear experimental situation is provided for packing element
Sealing test mechanism, can be separated mutual by connecting rod attaching nut between the setting mechanism and the sealing test mechanism
Connection, the locking mechanism are threadedly attached in the inside upper part of the sealing test mechanism.
The setting mechanism includes room temperature cylinder, is separately positioned on the upper flange of the room temperature cylinder upper/lower terminal with
Flange, the room temperature cylinder are internally provided with piston, and the lower end of the piston is connected with room temperature mandrel, and the room temperature mandrel is worn
Go out outside the lower flange, and be connected with the high temperature mandrel of the sealing test mechanism.
The first seal nipple is provided with the upper flange, first seal nipple passes through liquid controling pipe line and pressure source phase
Connection, for being suppressed to the room temperature cylinder, moves down the piston;The second sealing is provided with the lower flange to connect
Head, second seal nipple are connected by liquid controling pipe line with pressure source, for being suppressed to the room temperature cylinder, make the work
Plug moves up.
The upper flange is connected by screw thread with the room temperature cylinder, and passes through seal with O ring;The lower flange passes through
Screw thread is connected with the room temperature cylinder, and passes through seal with O ring;The piston is sealed by O-ring and the room temperature cylinder,
The room temperature mandrel is sealed by O-ring and the lower flange.
The sealing test mechanism includes high temperature cylinder, and is arranged on the high temperature mandrel of the high temperature inner barrel, described
The outside of high temperature mandrel sets packing element, and the upper end of the high temperature mandrel is connected with the room temperature mandrel of the setting mechanism
Connect, the high temperature core the tip of the axis is connected by screw with pressure ring.
The bottom of the high temperature cylinder is provided with the 3rd seal nipple, and the 3rd seal nipple passes through liquid controling pipe line and pressure
Power source connects, for being verified to packing element sealing performance under the high temperature conditions.
The packing element is rubber seal, and the 3rd seal nipple uses all-metal sealing.
The locking mechanism includes lock ring and removal rod, and the removal rod is threadedly attached in the upper end of the lock ring;
The lock ring is threadedly attached in the inside upper part of the high temperature cylinder of the sealing test mechanism, present to be honored as a queen to the sealing
The high temperature mandrel of mechanism for testing is locked into row position, and keeps packing element to be in setting state, increases experiment safety performance.
A kind of packing element brief test device of achievable high/low temperature alternation environment of the utility model further includes constant temperature
Baking oven, during experiment, the sealing test mechanism is put into the constant temperature oven, and the perseverance from room temperature to 400 DEG C is provided for experiment
Determine temperature environment.
The beneficial effects of the utility model are:The functional characteristics of the utility model combination packing element, for current height
The defects of warm packing element simulation test, there is provided a kind of that the device for carrying out simulation test to packing element on land is implemented separately.
Compared with original experimental rig and method, a kind of packing element of achievable high/low temperature alternation environment of the utility model simply tries
Experiment device, can carry out sealing performance simulation to high temperature, condition of high voltage lower packet packing element, can be to being carried out under high temperature, condition of high voltage
Monitoring in real time, has wide applicability, has safeguard measure, improve the security of simulated experiment.
Brief description of the drawings
Fig. 1:A kind of packing element brief test apparatus structure of achievable high/low temperature alternation environment of the utility model shows
It is intended to;
Fig. 2:The utility model carries out structure diagram during sealing test.
Attached drawing marks:The first seal nipples of 1-;2- upper flanges;3-O shape circles;4- room temperature cylinders;5- pistons;6- lower flanges;
7- nuts;8-O type circles;The second seal nipples of 9-;10- room temperature mandrels;11- connecting rods;12- removal rods;13- lock rings;14- is insulated
Device packing element;15- high temperature mandrels;16- screws;17- high temperature cylinders;18- pressure rings;The 3rd seal nipples of 19-;The setting mechanisms of 20-;
21- locking mechanisms;22- sealing tests mechanism;23- constant temperature ovens;24- liquid controling pipe lines;25- pressure sources.
Embodiment
The utility model will be further described below in conjunction with the accompanying drawings.
As shown in figure 1 and 2, a kind of packing element brief test device of achievable high/low temperature alternation environment, including
For suppressing setting mechanism 20 that is setting and unsealing and take out packing element 14 for packing element 14, for safeguards containment device
Packing element 14 is setting and provides the locking mechanism 21 of safety guarantee, and provides the close of setting rear experimental situation for packing element 14
Mechanism for testing 22 is sealed, passes through 11 attaching nut of connecting rod, 7 (this reality between the setting mechanism 20 and the sealing test mechanism 22
Apply example and nut MI6 solved using I types six) can separated interconnection, the locking mechanism 21 is threadedly attached in the sealing
The inside upper part of mechanism for testing 22.
The setting mechanism 20 includes room temperature cylinder 4, is separately positioned on the upper flange 2 of 4 upper/lower terminal of room temperature cylinder
With lower flange 6, the upper flange 2 is connected by screw thread with the room temperature cylinder 4, and is realized and sealed by O-ring 3;It is described
Lower flange 6 is connected by screw thread with the room temperature cylinder 4, and is realized and sealed by O-ring 3;The inside of the room temperature cylinder 4
Piston 5 is provided with, the piston 5 is realized by O-ring 3 and sealed with the room temperature cylinder 4;The lower end of the piston 5 passes through spiral shell
Line is connected with room temperature mandrel 10, and the room temperature mandrel 10 is pierced by outside the lower flange 6, its end is surveyed by screw thread and the sealing
The high temperature mandrel 15 of test-run a machine structure 22 is connected, wherein, the room temperature mandrel 10 is realized by O-ring 8 and realized with the lower flange 6
Sealing.The first seal nipple 1 is provided with the upper flange 2, first seal nipple 1 passes through liquid controling pipe line 24 and pressure source
25 are connected, and for being suppressed to the room temperature cylinder 4, move down the piston 5;Second is provided with the lower flange 6
Seal nipple 9, second seal nipple 9 are connected by liquid controling pipe line 24 with pressure source 25, for the room temperature cylinder 4
Suppress, move up the piston 5.
The sealing test mechanism 22 includes high temperature cylinder 17, and the high temperature mandrel being arranged on inside the high temperature cylinder 17
15, the upper end of the high temperature mandrel 15 is provided with a shoulder, and the outside of the high temperature mandrel 15, set envelope below its shoulder
Every device packing element 14, the packing element 14 is experiment component, is replaced by other classification packing elements 14 and carries out leakproofness
Can experiment.The upper end of the high temperature mandrel 15 is connected with the end of the room temperature mandrel 10 of the setting mechanism 20, the high temperature
The end of mandrel 15 is connected by screw 16 (the present embodiment uses hexagon socket cap head screw) with pressure ring 18.The high temperature cylinder
The bottom of body 17 is provided with the 3rd seal nipple 19, and the 3rd seal nipple 19 is connected by liquid controling pipe line 24 and pressure source 25
Connect, for being verified to 14 sealing performance of packing element under the high temperature conditions.In this implementation, the sealing test mechanism
In 22, the packing element 14 is rubber seal, and the 3rd seal nipple 19 uses all-metal sealing.
The locking mechanism 21 includes lock ring 13 and removal rod 12, and the removal rod 12 is threadedly attached in the lock ring
13 upper end;The lock ring 13 is threadedly attached in the inside upper part of the high temperature cylinder 17 of the sealing test mechanism 22,
The high temperature mandrel 15 of the sealing test mechanism 22 is locked into row position after setting, and keeps packing element 14 to be in setting
State, increases experiment safety performance.
A kind of packing element brief test device of achievable high/low temperature alternation environment of the utility model further includes constant temperature
Baking oven 23, during experiment, the sealing test mechanism 22 is put into the constant temperature oven 23, is provided for experiment from room temperature to 400
DEG C steady temperature environment.
When the utility model is used, first, piston 5 and room temperature mandrel 10 are connected through a screw thread, and be placed on room temperature
In cylinder 4, room temperature cylinder 4 is connected through a screw thread with upper flange 2 and lower flange 6, and wherein upper flange 2 is realized by one of O-ring 3
Sealed with room temperature cylinder 4, piston 55 realizes and sealed with room temperature cylinder 4 that lower flange 6 passes through one of O-ring 3 by twice O-ring 3
Realization is sealed with room temperature cylinder 4, and room temperature mandrel 10 is realized by O-ring 8 and lower flange 6 and sealed, the room temperature in the outside of lower flange 6
Mandrel 10 passes through lock ring 13, links removal rod 12 by screw thread on lock ring 13,10 end of room temperature mandrel passes through with high temperature mandrel 15
It is threadedly coupled, in the outside of high temperature mandrel 15 installation packing element 14, passes through screw 16 and pressure ring 18 in 15 end of high temperature mandrel
Connection, high temperature mandrel 15 therein, packing element 14 and pressure ring 18 is put into high temperature cylinder 17, and pass through 11 He of connecting rod
Nut 7 is so that setting mechanism 20 and sealing test mechanism 22 connect.
Then the setting stage is carried out, the first seal nipple 1 is suppressed, promotes piston 5, room temperature mandrel 10, high temperature core
Axis 15 moves down, and packing element 14 extrude setting.In the fixed stage, be packer rubber by that will suppress pressure convert
14 setting pressure of cylinder, when reaching setting pressure, by rotating lock ring 13, are connected through a screw thread and are fixed, limitation packing element deblocking.
After completing the fixed stage, setting 20 pressure of mechanism is discharged, dismantling connection bar 11, setting mechanism 20 and sealing test mechanism 22 are divided
From sealing test mechanism 22 being put into constant temperature oven 23, and make the 3rd seal nipple 19 and pressure source by liquid controling pipe line 24
25 connections, can be monitored sealing performance under the high temperature conditions to packing element 14.
After the completion of experiment, by 11 assembling seat sealing mechanism 20 of connecting rod and test sealing mechanism, connected by liquid controling pipe line 24
The first seal nipple 1 and pressure source 25 are connect, suppresses rotatable lock ring 13, lock ring 13 is reversely rotated, is separated with high temperature cylinder 17,
Pressure is discharged, and liquid controling pipe line 24 is connected with the second seal nipple 9, suppressing makes piston 5, room temperature mandrel 10, high temperature mandrel 15
Upper movement, is unsealed and is taken out to packing element 14.
Although the preferred embodiment of the utility model is described above in conjunction with attached drawing, the utility model is not
Above-mentioned embodiment is confined to, above-mentioned embodiment is only schematical, is not restricted, ability
The those of ordinary skill in domain is not departing from the utility model aims and claimed under the enlightenment of the utility model
Under ambit, many forms can also be made, these are belonged within the scope of protection of the utility model.