CN103630349B - Compression packer assay device - Google Patents
Compression packer assay device Download PDFInfo
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- CN103630349B CN103630349B CN201310659115.7A CN201310659115A CN103630349B CN 103630349 B CN103630349 B CN 103630349B CN 201310659115 A CN201310659115 A CN 201310659115A CN 103630349 B CN103630349 B CN 103630349B
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- internals
- pit shaft
- shaft cylinder
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- head
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Abstract
The invention discloses a kind of compression packer assay device, including pit shaft cylinder, top seal structure and load load bar, described load load bar extend in pit shaft cylinder through top seal structure, described sealing structure includes outside internals seal head and inner side Work piece sealing head, described internals seal head and Work piece sealing head are realized sealing by sealing ring, the shaft shoulder position and compressed realization axially location by upper sealing gasket；Described pit shaft cylinder and internals seal head sidewall are provided with entrance pressure mouth, and described entrance pressure mouth couples pit shaft cylinder lumen and outside pressure-inducting device.This device fully simulates the operating mode that test piece is complicated in real work, and this assay device simple in construction, convenient disassembly, and interchangeability is good.
Description
Technical field
The present invention relates to the assay device of Oil/gas Well downhole operation equipment, compress in particular to one
Formula packer test device.
Background technology
Compression packer refer to have elastic sealing elements and thereby insulate annular space, every
Total crop failure layer, to control production fluid or fluid injection, the underground operation tool of protection sleeve pipe.Compression insulates
The scope of application of device is wide, almost throughout exploration and each production process of exploitation.Its effect is former
Reason is: under the effect of external force, and compression packer moves axially and circumferentially rotate etc. dynamic
Make, to reach the purpose sealing annular gap, preventing fluid from passing through.Due to oil gas underground work
Environment is very severe, and this needs through strict simulation test before just requiring product export, to guarantee
Product meets use requirement.
Conventional compression packer assay device is only capable of realizing the static state high-temperature high pressure of packer
Test, it is impossible to simulation packer under Oil/gas Well, inside pipe casing carry out setting, unseal (rotate,
Lower pressure, on carry) etc. action.After having tested, more can not individually will test from assay device
Workpiece, test casing take out.
Summary of the invention
Present invention aim to provide that a kind of simple in construction, dismounting are easy, it is reliable to seal,
The compression packer assay device that interchangeability is strong.
For achieving the above object, the compression packer assay device designed by the present invention, including
Pit shaft cylinder, the top seal structure being arranged in pit shaft cylinder lumen and through top close
Seal structure extend into the load load bar in pit shaft cylinder, and it is characterized in that
Described pit shaft cylinder is barrel-like structure, is provided with and matches with top seal structure in its inner chamber
The ring-shaped step closed, is provided with entrance pressure mouth on cylinder in the middle part of the barrel of described pit shaft cylinder, described
The barrel bottom of pit shaft cylinder is provided with entrance pressure mouth under cylinder；
So that sealing effectiveness is more preferable, described top seal structure includes internals seal head and work
Part seal head, described internals seal head is set by its top land and is located in the interior of pit shaft cylinder
At the ring-shaped step of chamber, and by arranging sealing ring and internals lower seal in internals on its external wall
Circle is tightly connected with pit shaft cylinder inboard wall, in described internals between sealing ring and internals lower seal
It is formed with annulus in order to introduce fluid；
Described internals seal head top is provided with internals threaded pressure ring, outside described internals threaded pressure ring
Wall and pit shaft cylinder inboard wall threaded engagement, thus abut compression internals seal head；Described internals are close
Be provided with internals impulse mouth in the middle part of the sidewall of end socket, described internals impulse mouth by annulus with
On cylinder, entrance pressure mouth communicates, it is simple to external pressure introduces pit shaft cylinder lumen center；
Described Work piece sealing head is set on the inner chamber being located in internals seal head by its top land
Portion, and connected with internals seal head inner wall sealing by the Work piece sealing circle arranged on its external wall
Connecing, described Work piece sealing head is provided with workpiece threaded pressure ring, outside described workpiece threaded pressure ring
Wall coordinates with internals threaded pressure ring inner thread, thus abuts workpiece pressing seal head；
Described load load bar sequentially passes through workpiece threaded pressure ring, Work piece sealing head and internals and seals
Head stretches to pit shaft cylinder bottom, and passes through to arrange load bar sealing ring on its external wall and work
Part seal head inner wall sealing connects, and is used for installing tested workpiece bottom described load load bar.
In order to prevent the workpiece damage to pit shaft cylinder in test process, reduce cost and reduction
Displacement difficulty, described internals seal head lower end is provided with the thin wall casing of convenient dismounting, described thin
Wall sleeve upper end outer wall coordinates with internals seal head inner thread, and described thin wall casing lower end extends
To pit shaft cylinder body bottom, also set between described thin wall casing upper end outer wall and internals seal head inwall
It is equipped with O RunddichtringO, makes thin wall casing more preferable, in order to hinder with the sealing effectiveness of internals seal head
Poor every fluid produced by upper and lower entrance pressure mouth.
Further, in order to prevent the axial rotation of internals seal head from making location inaccurate, described
The top land outer wall of internals seal head and the inner chamber ring-shaped step inwall junction of pit shaft cylinder
It is provided with location plane, thus can prevent internals seal head from twisting relative to pit shaft cylinder.
Preferably, load for convenience, described load load bar is arranged at intervals with multiple square
Reverse loading interface.
Further, load for convenience, described workpiece threaded pressure ring and internals threaded pressure ring
Top is provided with radially installing hole.
Yet further, in described internals, the size of sealing ring is more than the size of internals lower seal,
Consequently facilitating the mounting or dismounting of internals seal head.
Yet further, the outer wall of described load load bar is arranged at intervals with multiple tracks load bar to seal
Circle, consequently facilitating it is connected with Work piece sealing head inner wall sealing at different sections, increases load simultaneously
The sealing effective length of lotus load bar.
It is an advantage of the current invention that: generally Demountable, in pit shaft cylinder top is provided with
Screw thread and square interface, it is simple to the location of internals seal head.Pit shaft sealing surface uses stepped sealed
Face, while being easily installed, it is also possible to introduces pressure medium between two sealing surfaces；Face with
Sealing between face is provided with sealing ring so that sealing is more good, and this assay device is abundant
Simulate the compression packer situation that working environment is the most severe under Oil/gas Well, and structure letter
Single, easy to process, dismounting simplicity, good sealing effect, there is good interchangeability.
Accompanying drawing explanation
Fig. 1 is a kind of compression packer assay device structural representation.
Fig. 2 is Fig. 1 detailed marking structure schematic diagram.
Fig. 3 is the A-A sectional structure schematic diagram of Fig. 2
Fig. 4 is the structural representation of internals seal head assembly in Fig. 2.
In figure: pit shaft cylinder 1(wherein: entrance pressure mouth 1.1 on cylinder, entrance pressure mouth 1.2 under cylinder),
Top seal structure 2(is wherein: internals seal head 2.1, and Work piece sealing head 2.2 is close in internals
Seal 2.3, internals lower seal 2.4, Work piece sealing circle 2.5, internals threaded pressure ring 2.6, interior
Part impulse mouth 2.7, workpiece threaded pressure ring 2.8, thin wall casing 2.9, O RunddichtringO 2.10,
Annular gap 2.11, position plane 2.12, radially installing hole 2.13), load load bar 3(its
In: load bar sealing ring 3.1, square torsion loading interface 3.2), test piece 4.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Compression packer assay device shown in figure, including pit shaft cylinder 1, is arranged on well
Top seal structure 2 in cylinder cylinder 1 inner chamber and extending into through top seal structure 2
Load load bar 3 in pit shaft cylinder 1, pit shaft cylinder 1, in barrel-like structure, sets in its inner chamber
It is equipped with the ring-shaped step matched with top seal structure 2, sets in the middle part of the barrel of pit shaft cylinder 1
Being equipped with entrance pressure mouth 1.1 on cylinder, the barrel bottom of pit shaft cylinder 1 is provided with entrance pressure mouth under cylinder
1.2；Top seal structure 2 includes internals seal head 2.1 and Work piece sealing head 2.2, and internals are close
End socket 2.1 is set by its top land and is located at the inner chamber ring-shaped step of pit shaft cylinder 1,
And by sealing ring 2.3 in setting internals on its external wall and internals lower seal 2.4 and well
Cylinder cylinder 1 inner wall sealing connects, and in internals, the size of sealing ring 2.3 is more than and internals lower seal
The size of circle 2.4, consequently facilitating the mounting or dismounting of internals seal head 2.1；Sealing ring in described internals
It is formed with annulus 2.11 between 2.3 and internals lower seal 2.4, facilitates the introducing of fluid；
Internals seal head 2.1 top is provided with internals threaded pressure ring 2.6, described internals threaded pressure ring
2.6 outer walls coordinate with pit shaft cylinder 1 inner thread, thus abut compression internals seal head 2.1；
Internals impulse mouth 2.7, internals impulse mouth it is provided with in the middle part of the sidewall of described internals seal head 2.1
2.7 are communicated with entrance pressure mouth 1.1 on cylinder by annulus 2.11, it is simple to external pressure drawn
Entering pit shaft cylinder 1 inner chamber top, under cylinder, external pressure is then introduced pit shaft by entrance pressure mouth 1.2
Cylinder 1 inner chamber bottom, so forms pressure differential, more can truly simulate tested workpiece 4
Work condition environment；The top land outer wall of internals seal head 2.1 is annular with the inner chamber of pit shaft cylinder 1
Stepped inner walls junction is provided with location plane 2.12, thus can prevent internals seal head 2.1 phase
Pit shaft cylinder 1 is twisted.
Work piece sealing head 2.2 is set by its top land and is located in the interior of internals seal head 2.1
Top, chamber, and pass through to arrange Work piece sealing circle 2.5 on its external wall and internals seal head 2.1
Inner wall sealing connects, and described Work piece sealing head 2.2 top is provided with workpiece threaded pressure ring 2.8, institute
State workpiece threaded pressure ring 2.8 outer wall to coordinate with internals threaded pressure ring 2.6 inner thread, thus support
Connect workpiece pressing seal head 2.2；
Load load bar 3 sequentially passes through workpiece threaded pressure ring 2.8, Work piece sealing head 2.2 and internals
Seal head 2.1 stretches to pit shaft cylinder 1 bottom, and by arranging load bar on its external wall
Sealing ring 3.1 is connected with Work piece sealing head 2.2 inner wall sealing, bottom described load load bar 3
For installing tested workpiece 4；Load for convenience, load load bar 3 is arranged at intervals with
Multiple square torsion loading interfaces 3.2；It is arranged at intervals with multiple tracks on the outer wall of load load bar 1
Load bar sealing ring 3.1, consequently facilitating it is at different sections and Work piece sealing head 2.2 inner wall sealing
Connect, increase the sealing effective length of load load bar 1 simultaneously.
In order to prevent the workpiece damage to pit shaft cylinder in test process, reduce cost and reduction
Displacement difficulty, internals seal head 2.1 lower end is provided with thin wall casing 2.9, described thin wall casing
2.9 upper end outer walls coordinate with internals seal head 2.1 inner thread, described thin wall casing 2.9 lower end
Extend to bottom pit shaft cylinder 1, described thin wall casing 2.9 upper end outer wall and internals seal head 2.1
O RunddichtringO 2.10 it is additionally provided with between inwall.
Loading for convenience, workpiece threaded pressure ring 2.8 and internals threaded pressure ring 2.6 top are provided with
Radially installing hole 2.13.
The work process of the present invention is as follows:
First internals seal head 2.1 is loaded in pit shaft cylinder 1, now, internals seal head 2.1
The square structure of head coordinates with the square structure of pit shaft cylinder 1 inner chamber, limits internals and seals
2.1 circumferentially rotate, meanwhile, passes through internals between pit shaft cylinder 1 and internals seal head 2.1
Upper sealing ring 2.3 and internals lower seal 2.4 realize sealing；Then by internals threaded pressure ring 2.6
Load in pit shaft cylinder 1, until with internals seal head 2.1 upper surface, now, internals
The threaded pressure ring 2.6 auto-lock function by screw thread, limits the axial position of internals seal head 2.1
Move, it is achieved that the location completely of internals seal head 2.1.
Then load in pit shaft cylinder 1 after test piece 4 being coupled with load load bar 3, then
Work piece sealing head 2.2 is loaded in internals seal head 2.1, by workpiece threaded pressure ring 2.8 and workpiece
The shaft shoulder of seal head 2.2 carries out Work piece sealing head 2.2 and internals seal head 2.1 axle between the two
To location, Work piece sealing head 2.2 realizes close with internals seal head 2.1 by Work piece sealing circle 2.5
Envelope, Work piece sealing head 2.2 and load load bar 3 realize sealing by loading sealing ring 3.1；
Then workpiece threaded pressure ring 2.8 is screwed in internals threaded pressure ring 2.6, until with Work piece sealing head
2.2 upper surface, now, Work piece sealing head 2.2 positions completely and seals.
During test, load load bar 3 can be made axially displaced by corresponding mechanism or rotate, real
The various experiment actions of existing compression packer, after off-test, can be successively by load load bar
3, test piece 4 and internals seal head 2.1 take out from pit shaft cylinder 1.
Claims (6)
1. a compression packer assay device, including pit shaft cylinder (1), is arranged on pit shaft
Top seal structure (2) in cylinder (1) inner chamber and through top seal structure (2)
The load load bar (3) extending in pit shaft cylinder (1), it is characterised in that:
Described pit shaft cylinder (1), in barrel-like structure, is provided with in its inner chamber and top seal structure
(2) ring-shaped step matched, is provided with cylinder in the middle part of the barrel of described pit shaft cylinder (1)
Upper entrance pressure mouth (1.1), the barrel bottom of described pit shaft cylinder (1) is provided with entrance pressure mouth under cylinder
(1.2)；
Described top seal structure (2) includes internals seal head (2.1) and Work piece sealing head (2.2),
Described internals seal head (2.1) is set by its top land and is located in pit shaft cylinder (1)
At inner chamber ring-shaped step, and by arranging in internals on its external wall sealing ring (2.3) and interior
Part lower seal (2.4) is connected with pit shaft cylinder (1) inner wall sealing, and described internals seal
It is formed with annulus (2.11) between circle (2.3) and internals lower seal (2.4)；
Described internals seal head (2.1) top is provided with internals threaded pressure ring (2.6), described interior
Part threaded pressure ring (2.6) outer wall coordinates with pit shaft cylinder (1) inner thread, thus abuts pressure
Tight internals seal head (2.1)；It is provided with internals in the middle part of the sidewall of described internals seal head (2.1)
Impulse mouth (2.7), described internals impulse mouth (2.7) pass through annulus (2.11) and cylinder
Upper entrance pressure mouth (1.1) communicates, it is simple to external pressure introduces pit shaft cylinder (1) lumen centers,
The top land outer wall of described internals seal head (2.1) is annular with the inner chamber of pit shaft cylinder (1)
Stepped inner walls junction is provided with location plane (2.12), thus can prevent internals seal head (2.1)
Twist relative to pit shaft cylinder (1)；
Described Work piece sealing head (2.2) is set by its top land and is located in internals seal head
(2.1) inner chamber top, and by arrange Work piece sealing circle (2.5) on its external wall with
Internals seal head (2.1) inner wall sealing connects, and described Work piece sealing head (2.2) top is arranged
There are workpiece threaded pressure ring (2.8), described workpiece threaded pressure ring (2.8) outer wall and internals screw thread pressure
Ring (2.6) inner thread coordinates, thus abuts workpiece pressing seal head (2.2)；
Described load load bar (3) sequentially passes through workpiece threaded pressure ring (2.8), Work piece sealing head
(2.2) and internals seal head (2.1) stretches to pit shaft cylinder (1) bottom, and by arranging
Load bar sealing ring (3.1) on its external wall is with Work piece sealing head (2.2) inner wall sealing even
Connecing, described load load bar (3) bottom is used for installing tested workpiece (4).
Compression packer assay device the most according to claim 1, it is characterised in that:
Described internals seal head (2.1) lower end is provided with thin wall casing (2.9), described thin wall casing (2.9)
Upper end outer wall coordinates with internals seal head (2.1) inner thread, described thin wall casing (2.9)
Lower end extends to pit shaft cylinder (1) bottom, and described thin wall casing (2.9) upper end outer wall is with interior
O RunddichtringO (2.10) it is additionally provided with between part seal head (2.1) inwall.
Compression packer assay device the most according to claim 1, it is characterised in that:
Multiple square torsion loading interface (3.2) it is arranged at intervals with on described load load bar (3).
Compression packer assay device the most according to claim 1, it is characterised in that:
Described workpiece threaded pressure ring (2.8) and internals threaded pressure ring (2.6) top are provided with radially
Installing hole (2.13).
Compression packer assay device the most according to claim 1, it is characterised in that:
In described internals, the size of sealing ring (2.3) is more than the size of internals lower seal (2.4),
Consequently facilitating the mounting or dismounting of internals seal head (2.1).
Compression packer assay device the most according to claim 1, it is characterised in that:
It is arranged at intervals with multiple tracks load bar sealing ring (3.1) on the outer wall of described load load bar (3),
Consequently facilitating it is connected with Work piece sealing head (2.2) inner wall sealing at different sections, increase simultaneously
The sealing effective length of load load bar (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310659115.7A CN103630349B (en) | 2013-12-09 | 2013-12-09 | Compression packer assay device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310659115.7A CN103630349B (en) | 2013-12-09 | 2013-12-09 | Compression packer assay device |
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| Publication Number | Publication Date |
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| CN103630349A CN103630349A (en) | 2014-03-12 |
| CN103630349B true CN103630349B (en) | 2016-08-17 |
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| CN201310659115.7A Active CN103630349B (en) | 2013-12-09 | 2013-12-09 | Compression packer assay device |
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| CN104180986B (en) * | 2014-09-22 | 2016-06-22 | 上海外高桥造船有限公司 | Stress test frock for sleeve pipe stretcher and the assay device containing it |
| CN104374559B (en) * | 2014-11-14 | 2017-04-05 | 中国石油天然气股份有限公司 | A kind of downhole tool dynamic performance experiment detection means |
| CN104596753B (en) * | 2015-01-20 | 2017-03-08 | 中国石油天然气股份有限公司 | Thermal packer method of testing based on thermal packer test device |
| CN104865134B (en) * | 2015-06-16 | 2017-06-27 | 西南交通大学 | A kind of agent injecting type static seal experimental provision |
| CN107271304B (en) * | 2016-04-08 | 2023-09-01 | 中国石油化工股份有限公司 | Erosion testing device and method for throttle sand blaster |
| CN107489394B (en) * | 2017-08-15 | 2020-09-08 | 中国石油天然气股份有限公司 | Open hole packer three-ellipse experimental device and method |
| CN107448607B (en) * | 2017-08-30 | 2023-07-14 | 武汉海王机电工程技术有限公司 | Sealing structure of downhole tool test device |
| CN112228040A (en) * | 2020-10-09 | 2021-01-15 | 中国石油天然气集团有限公司 | High-temperature and high-pressure test method for downhole tool, static sealing head and auxiliary installation equipment thereof |
| CN114441322A (en) * | 2020-11-06 | 2022-05-06 | 中国石油化工股份有限公司 | Packer test device and method |
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| US5690172A (en) * | 1996-04-24 | 1997-11-25 | Alexander Oil Tools, Inc. | Seal-sub packer and a setting tool therefor |
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| CN103630349A (en) | 2014-03-12 |
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Address after: 430000 No. 450, Zhongshan Road, Wuchang, Wuhan, Hubei Patentee after: WUHAN HAIWANG ELECTROMECHANICAL ENGINEERING TECHNOLOGY Co.,Ltd. Address before: 430064 No. 450, Wuchang, Wuhan District, Hubei, Zhongshan Road Patentee before: WUHAN HAIWANG MECHANICAL & ELECTRICAL ENGINEERING TECHNOLOGY Co.,Ltd. |