CN209356139U - Packer packing element performance evaluation test device - Google Patents
Packer packing element performance evaluation test device Download PDFInfo
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- CN209356139U CN209356139U CN201822147683.XU CN201822147683U CN209356139U CN 209356139 U CN209356139 U CN 209356139U CN 201822147683 U CN201822147683 U CN 201822147683U CN 209356139 U CN209356139 U CN 209356139U
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- packing element
- piston
- lower contact
- top connection
- performance evaluation
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- 238000012856 packing Methods 0.000 title claims abstract description 81
- 238000011156 evaluation Methods 0.000 title claims abstract description 14
- 238000012360 testing method Methods 0.000 title abstract description 23
- 239000011521 glass Substances 0.000 claims abstract description 25
- 238000010438 heat treatment Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 abstract description 11
- 238000007789 sealing Methods 0.000 description 12
- 239000012530 fluid Substances 0.000 description 9
- 230000005540 biological transmission Effects 0.000 description 8
- 230000000712 assembly Effects 0.000 description 7
- 238000000429 assembly Methods 0.000 description 7
- 239000000306 component Substances 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 230000002337 anti-port Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000012163 sequencing technique Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a packer packing element performance evaluation test device, which comprises an upper joint, a piston, a drift size gauge, a packing element, a supporting block, a lower joint, a central shaft and a frame; the upper joint, the piston, the drift size gauge, the rubber cylinder, the supporting block and the lower joint are all installed on a central shaft, the upper joint and the lower joint are fixed with the central shaft, the outer portions of the upper joint and the lower joint are connected with a glass tube, the rubber cylinder is arranged between the two drift size gauges, one drift size gauge is connected with the piston, the piston is connected with an external pushing mechanism, the other drift size gauge is connected to the lower joint through the supporting ring, the central shaft is fixed on the rack, and the high-pressure hose penetrates through the upper joint and is connected to the piston. Adopt the utility model discloses, can carry out direct observation to deformation, the sealed action of packing element in the test process, simultaneously, can measure the mechanical characteristics of packing element during the setting, improve contact stress, guarantee the leakproofness for the later stage and provide the foundation for the packing element structure is improved.
Description
Technical field
The utility model relates to the performance detection assessment equipment technical fields of the packing element in oil drilling industry.
Background technique
Packer is the key tool of formation testing completion practice, undertakes packing oil jacket annulus, ensures the important task of pit shaft safety.Glue
Cylinder is the core component of packer, is the direct executor of sealing function, the load performance under the hot conditions of underground is determined
Determine the success or failure of formation testing completion practice.Therefore the performance of packing element must be assessed, grasp its pressurization set, seal and pressure bearing,
The performances such as deblocking, to guarantee the success of field operation.Packing element is mainly mounted on one by the method for packing element assessment at present
In a closed steel cylinder, its work behavior is simulated, Performance Evaluation is carried out by external measurement indirectly,
Publication No. 202903426U, publication date are that the Chinese patent literature on April 24th, 2013 discloses a kind of packing
Device packing element test tool, including upper center tube and lower center tube, upper center tube are connect with lower center tube upper outside, lower center tube
Bottom connect plug, upper center tube lower outside be equipped with sealing ring and with packing element test piston match, lower center tube it is upper
Region under portion's screw thread is equipped with pressure transmission hole, is formed between upper center tube, lower center tube and packing element test piston and promotes chamber, pressure transmission
Hole connection promotes inside chamber and lower center tube；Lower center tube lower part connects lower baffle ring, lower baffle ring outside and test casing one end phase
Even, the test casing other end is connected with upper baffle ring, and upper baffle ring matches with packing element test piston and merges sealing.And Publication No.
205301096U, publication date are that the Chinese patent literature on June 8th, 2016 discloses a kind of high-temperature packer packing element testing inspection
Tool, which includes: column assemblies, is provided with the installation for installing test packing element
Section；Pressure transmission component is set in outside the column assemblies, and the left end of the pressure transmission component is located at the right end of the construction section, and the pressure transmission
Component being capable of sliding axially along the column assemblies；Hydraulic cylinder housing is set in outside the column assemblies, the right end of the pressure transmission component
Equipped with piston, which is set between hydraulic cylinder housing and the column assemblies, hydraulic cylinder housing, the pressure transmission component piston and
Sealing space is collectively formed in the outer wall of the column assemblies, and sealing space can expand and drive the pressure transmission component along the column assemblies
Slide axially.
Using above patent document as the prior art of representative, specific method is assessed by the displacement of recording compressed bar
Packing element compressive features are observed by the pressure change of tail portion and assess its sealing behavior.Above method seems very rough, cannot be right
The specific works details of packing element is assessed: such as the compressed sequencing of various pieces on packing element ontology in packing element compression process
What kind of is；When packing element sealing failure, fluid is specifically to pierce through from which position, is all had no way of finding out about it, this is to rapidly finding out glue
It is all unfavorable that cylinder design defect and later period improve.
Therefore in order to overcome disadvantage mentioned above, need to design a kind of test that can directly observe packing element work behavior
Device improves the efficiency and accuracy of packing element assessment.
Summary of the invention
The utility model is intended to provide a kind of packing element for defect and deficiency present in the above-mentioned prior art
Energy evaluation test device during the test can directly see the deformation of packing element, sealing behavior using the utility model
It examines, meanwhile, the mechanical characteristics during setting of packing element can be measured, packing element structure is improved for the later period and improves contact stress, guarantee
Leakproofness provides foundation.
The utility model is realized by using following technical proposals:
A kind of packing element Performance Evaluation experimental rig, it is characterised in that: including top connection, piston, gauguste cutter, glue
Cylinder supports fast, lower contact, central axis and rack；The top connection, piston, gauguste cutter, packing element, support is fast and lower contact is pacified
Dress on center shaft, fix by inside and the central axis of top connection and lower contact, and top connection and lower contact are externally connected to glass
Pipe, packing element are arranged between two gauguste cutters, and one of gauguste cutter is connect with piston, and piston is connect with external backup mechanism,
Another gauguste cutter is connected in lower contact by support ring, piston, gauguste cutter, packing element and support fastly be located at top connection and under connect
Between head, central axis is fixed on the rack, and high-pressure hose passes through top connection, is connected on piston.
At least one ess-strain piece is provided on the glass tube.
The central axis is internally provided with heating cavities.
The top connection and lower contact is threadedly secured on central axis.
The top connection and lower contact are fixedly connected by being bonded with glass tube.
Bracket is fixed on floor.
The glass tube is the high pressure resistant glass of pressure-bearing 50MPa or more, 300 DEG C of heatproof or more.
This practical working principle is:
The forward movement of backup mechanism urges piston is set, gauguste cutter squeezes packing element, expands and set in high-strength glass
The inner wall of glass pipe forms hermetic barrier, has been additionally formed upper plenum and lower cavity.Stream is injected into upper plenum by high-pressure hose
Body, which is forced into, tests seal pressure, has seen whether that fluid flows into lower cavity, to judge the sealing performance of packing element.Test sealed knot beam
Afterwards, the pressure in upper plenum is laid down by high-pressure hose, then antiport sets backup mechanism and removes setting force, packing element retraction
It restores.In order not to preventing glass pipe, guarantee that observing effect, system heating method are changed to around heating in mandrel from traditional external rings
Hot fluid is sent to inside, simulates the hot environment of packing element underground by heating cavities in being arranged.Period can penetrate high-strength glass
Glass pipe 1 observes packing element specific deformation process of packing element ontology in extrusion expansion setting process, optimizes packing element structure for the later period and provides
Foundation；During testing envelope, if lose envelope, can observe packing element formation hermetic barrier under differential pressure, how fluid is broken through,
In addition the mechanical characteristics during setting of packing element can be measured by ess-strain piece, are improved the raising of packing element structure for the later period and are connect
It touches stress, guarantee that leakproofness provides foundation；Deblocking stage, the retraction that each part on packing element ontology can be observed in real time are successively suitable
Sequence and retraction complexity guarantee that deblocking smoothly provides foundation to improve packing element design.
Compared with prior art, the utility model is achieved has the beneficial effect that:
1, in the utility model, the shell of packing element Performance Evaluation experimental rig uses high strength glass pipe, realizes
Transparent tooling mode during the test can directly observe and record the deformation of packing element, sealing behavior.
2, in the utility model, experimental rig shell adds strain gauge, and the mechanics that rear ontology can be set to packing element is special
Sign is recorded.
3, in the utility model, experimental rig uses internal flow heating method: interior heating cavities are arranged in central axis, heat
Fluid is sent to inside, can simulate the hot environment of packing element underground.
Detailed description of the invention
Below in conjunction with specification drawings and specific embodiments, the utility model is described in further detail,
In:
Fig. 1 is experimental rig state diagram before packing element is set；
Fig. 2 is that packing element sets rear experimental rig state diagram.
Marked in the figure:
1, high strength glass pipe, 2, ess-strain piece, 3, backup mechanism, 4, top connection, 5, piston, 6, gauguste cutter, 7, in
Mandrel, 8, support ring, 9, lower contact, 10, fixed bracket, 11, packing element, 12, high-voltage tube, 13, upper plenum, 14, lower cavity, 15,
Heating cavities.
Specific embodiment
Embodiment 1
As one better embodiment of the utility model, it discloses a kind of packing element Performance Evaluation experimental rig,
It includes top connection 4, piston 5, gauguste cutter 6, packing element 11, supports fast, lower contact 9, central axis 7 and rack；The top connection 4,
Piston 5, gauguste cutter 6, packing element 11, support is fast and lower contact 9 is installed on central axis 7, the inside of top connection 4 and lower contact 9
Fixed with central axis 7, top connection 4 and lower contact 9 are externally connected to glass tube, and packing element 11 is arranged between two gauguste cutters 6,
In a gauguste cutter 6 connect with piston 5, piston 5 connect with external backup mechanism 3, another gauguste cutter 6 passes through support ring 8
It is connected in lower contact 9, piston 5, gauguste cutter 6, packing element 11 and support are fast between top connection 4 and lower contact 9, central axis 7
It is fixed on the rack, high-pressure hose passes through top connection 4, is connected on piston 5.
Embodiment 2
As another better embodiment of the utility model, on the basis of embodiment 1, it is provided on the glass tube
At least three ess-strain pieces 2.The top connection 4 and lower contact 9 is threadedly secured on central axis 7.The top connection 4
It is fixedly connected by being bonded with glass tube with lower contact 9.Bracket is fixed on floor.The glass tube be pressure-bearing 50MPa or more,
300 DEG C of heatproof or more of high pressure resistant glass.
Embodiment 3
Referring to Figure of description 1 and 2, the preferred forms as the utility model.Its connection type: top connection 4 is lived
Plug 5, gauguste cutter 6, packing element 11, support ring 8, lower contact 9 are mounted on central axis 7.Wherein top connection 4 and lower contact 9 pass through spiral shell
Line is fixed on central axis 7；Top connection 4 and lower contact 9 are fixedly connected by modes such as bondings with glass tube 1, remaining is removable
It is dynamic；Piston 5 is connect with external backup mechanism 3；High-pressure hose 12 passes through top connection 4, is connected on piston 5；In central axis 7 is arranged
Heating cavities 15；Central axis 7 is fixed over the mount 10, and bracket 10 is fixed on floor.
Setting backup mechanism 3 pushes piston 5 to move forward, and gauguste cutter 6 squeezes packing element 11, expands and sets in high-strength
The inner wall for spending glass tube 1 forms hermetic barrier, has been additionally formed upper plenum 13 and lower cavity 14.By high-pressure hose 12 to overhead
Injection fluid, which is forced into, in chamber 13 tests seal pressure, has seen whether that fluid flows into lower cavity 14, to judge the sealing of packing element 1
Performance.After testing envelope, the pressure in upper plenum 13 is laid down by high-pressure hose 12, then antiport sets backup mechanism 3
Remove setting force, packing element retraction restores.In order not to preventing glass pipe, guarantee observing effect, system heating method is from traditional outer
Portion around heating is changed to that interior heating cavities 15 are arranged in central axis 7, and hot fluid is sent to inside, simulates the high temperature ring of packing element underground
Border.Period can observe packing element packing element ontology in extrusion expansion setting process through high strength glass pipe 1 and specifically deform
Journey optimizes packing element structure for the later period and provides foundation；During testing envelope, if losing envelope, the sealing resistance of the formation of packing element 11 can be observed
Every under differential pressure, how fluid is broken through, and the mechanics during setting of packing element in addition can be measured by ess-strain piece 2
Feature improves packing element structure raising contact stress for the later period, guarantees that leakproofness provides foundation；It in the deblocking stage, can be observed in real time
The retraction sequencing of each part and retraction complexity on packing element ontology guarantee that deblocking smoothly mentions to improve packing element design
For foundation.
Claims (6)
1. a kind of packing element Performance Evaluation experimental rig, it is characterised in that: including top connection (4), piston (5), gauguste cutter
(6), packing element (11), support be fast, lower contact (9), central axis (7) and rack；The top connection (4), piston (5), gauguste cutter
(6), packing element (11), support are installed on central axis (7) with lower contact (9) fastly, the inside of top connection (4) and lower contact (9)
Fixed with central axis (7), top connection (4) and lower contact (9) are externally connected to glass tube, and packing element (11) setting is in two gauguste cutters
(6) between, one of gauguste cutter (6) connect with piston (5), and piston (5) is connect with external backup mechanism (3), another
Gauguste cutter (6) is connected on lower contact (9) by support ring (8), piston (5), gauguste cutter (6), packing element (11) and the fast position of support
Between top connection (4) and lower contact (9), central axis (7) is fixed on the rack, and high-pressure hose passes through top connection (4), is connected to
On piston (5).
2. a kind of packing element Performance Evaluation experimental rig according to claim 1, it is characterised in that: the glass
At least one ess-strain piece (2) is provided on pipe.
3. a kind of packing element Performance Evaluation experimental rig according to claim 1 or 2, it is characterised in that: described
Central axis (7) is internally provided with heating cavities (15).
4. a kind of packing element Performance Evaluation experimental rig according to claim 1, it is characterised in that: connect on described
Head (4) and lower contact (9) are threadedly secured on central axis (7).
5. a kind of packing element Performance Evaluation experimental rig according to claim 1, it is characterised in that: the top connection
(4) it is fixedly connected by being bonded with glass tube with lower contact (9).
6. a kind of packing element Performance Evaluation experimental rig according to claim 1, it is characterised in that: bracket is fixed on
On floor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822147683.XU CN209356139U (en) | 2018-12-20 | 2018-12-20 | Packer packing element performance evaluation test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822147683.XU CN209356139U (en) | 2018-12-20 | 2018-12-20 | Packer packing element performance evaluation test device |
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| Publication Number | Publication Date |
|---|---|
| CN209356139U true CN209356139U (en) | 2019-09-06 |
Family
ID=67800252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822147683.XU Active CN209356139U (en) | 2018-12-20 | 2018-12-20 | Packer packing element performance evaluation test device |
Country Status (1)
| Country | Link |
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| CN (1) | CN209356139U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112611640A (en) * | 2020-10-22 | 2021-04-06 | 西南石油大学 | Device and method for testing high-temperature compression performance of variable-specification multi-size rubber cylinder |
| CN113567068A (en) * | 2021-07-24 | 2021-10-29 | 西南石油大学 | Device and method for testing sealing performance parameters of packer of oil and gas well |
-
2018
- 2018-12-20 CN CN201822147683.XU patent/CN209356139U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112611640A (en) * | 2020-10-22 | 2021-04-06 | 西南石油大学 | Device and method for testing high-temperature compression performance of variable-specification multi-size rubber cylinder |
| CN112611640B (en) * | 2020-10-22 | 2022-05-17 | 西南石油大学 | Device and method for testing high-temperature compression performance of variable-specification multi-size rubber cylinder |
| CN113567068A (en) * | 2021-07-24 | 2021-10-29 | 西南石油大学 | Device and method for testing sealing performance parameters of packer of oil and gas well |
| CN113567068B (en) * | 2021-07-24 | 2024-05-17 | 西南石油大学 | Device and method for testing sealing performance parameters of oil-gas well packer |
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