CN104060981B - Testing shaft for packers in multiple specifications - Google Patents
Testing shaft for packers in multiple specifications Download PDFInfo
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- CN104060981B CN104060981B CN201410281246.0A CN201410281246A CN104060981B CN 104060981 B CN104060981 B CN 104060981B CN 201410281246 A CN201410281246 A CN 201410281246A CN 104060981 B CN104060981 B CN 104060981B
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- packer
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- sleeve pipe
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Abstract
The invention relates to a testing shaft for packers in multiple specifications. The testing shaft comprises a barrel and a packer, wherein the barrel comprises a sealing head and a first threaded pressure ring; a crossover coupling is connected to the lower end of the sealing head, and is connected with the packer; a second threaded pressure ring screwed to the barrel is also arranged outside the first threaded pressure ring; a coupling is connected to the interior of the barrel at the lower end of the second threaded pressure ring, and is tightly pressed by the second threaded pressure ring; a groove is formed in the outer circle of the middle part of the coupling; a through hole penetrating through the center of the coupling is formed in the groove; an upper sealing groove is formed in the upper part of the groove; a lower sealing groove is formed in the lower part of the groove; a sleeve connector is connected to the lower end of the coupling; a sleeve is connected to the sleeve connector; the packer is arranged in the sleeve. According to the testing shaft for the packers in multiple specifications, sleeve connectors and sleeves in different specifications are connected through the internal coupling to realize simulation tests on the packers in different specifications.
Description
Technical field
The present invention relates to field of electromechanical equipment, provide simulation examination particularly to the petroleum drilling and mining packer for certain specification
Test the experimental wwll cylinder in space, more particularly, to a kind of experimental wwll cylinder for many specifications packer.
Background technology
Experimental wwll cylinder mainly provides the test space of simulation for the petroleum drilling and mining packer of certain specification, auxiliary during work
With supporting temperature-pressure system, realize the simulation to superhigh-pressure high-temp experimental enviroment in down-hole during oil exploitation, to packing
Device carries out the performance test of correlation.Domestic at present conventional method for designing is that the packer for every kind of specification designs a sleeve
Body, every sleeve body can only be simulated test to a kind of packer of specification, and traditional test chamber is as shown in figure 1, packer 2
It is placed directly within cylinder 1, is connected on seal head 4 by adapter 3, the sealing surface of packer is directly connect with cylinder inboard wall
Touch, extrude, form epicoele and cavity of resorption in inner barrel, in this case, the pressurization (liquid flow to epicoele or cavity of resorption will be completed
To as shown by arrows in FIG.) when must respectively open a hole in the upper and lower of cylinder, and due to sealing surface be located at cylinder inboard wall
On the black box outer wall of packer, therefore when the specification of packer is different, how corresponding its cylinder internal diameter be also different, different
The packer of specification then must join the cylinder of different size.Raw material due to testing cylinder has high demands, and material price is higher, examination
Test pit shaft production cost larger, and every kind of specification experimental wwll cylinder is both needed to design drawing, required accessory is also different, leads to the design cycle
Long, overall long the production cycle.
Therefore, a kind of experimental wwll cylinder of specification is only used in invention, by built-in box cupling connect the adapter of different size with
Sleeve pipe, realizes the experimental wwll cylinder device that the packer to different size is simulated test, has great market value.
Content of the invention
It is an object of the invention to overcoming above-mentioned not enough offer of the prior art a kind of different by built-in box cupling connection
The telescopic joint head of specification and sleeve pipe come to realize the packer to different size be simulated test for many specifications packer
Experimental wwll cylinder.
The technical scheme is that and be achieved in that: a kind of experimental wwll cylinder for many specifications packer, including cylinder
And packer, described cylinder includes seal head and the first threaded pressure ring being arranged on outside seal head, and described seal head lower end connects
One adapter, described adapter is connected with described packer, is additionally provided with and screws in cylinder outside described first threaded pressure ring
The second threaded pressure ring on body, the inner barrel of described second threaded pressure ring lower end is connected with a connection coupling, described second spiral shell
Stricture of vagina pressure ring compresses described connection coupling, and the outer ring setting at the middle part of described connection coupling is fluted, and described groove offers one
Through the through hole at connection coupling center, the top of described groove is provided with seal groove, and the bottom of described groove is provided with down close
Sealing groove, described box cupling lower end connects a set of pipe connector, described sleeve pipe union joint is connected with sleeve pipe, described packer is placed in institute
State in sleeve pipe；First pressurization hole and the second pressurization hole, described first pressurization hole and described connection coupling are offered on described cylinder
On through hole relatively connect, described cylinder is led to described sleeve pipe even in the lower section that described second pressurization hole is arranged on described connection coupling
In gap between joint.
Upper seal groove on described connection coupling, lower seal groove cavity all arrange sealing ring and cylinder inboard wall between, by cylinder
The oil circuit of portion's epicoele and cavity of resorption is separately.
Sealing surface and lower sealing surface are provided with described packer, described upper sealing surface and described lower sealing surface are all close to
Described sleeve pipe is arranged.
Described connection coupling upper end is polygonized structure, and this polygonized structure is matched with the polygon of described inner barrel
Close.
Described sleeve pipe union joint is provided with two sealing rings with the junction of described connection coupling.
The good effect that technical scheme produces is as follows: arranges connection coupling in inner barrel, in connection coupling
There is a groove in portion, has the through hole leading to endoporus in groove, and groove respectively has two seals groove up and down, operationally can will enter epicoele
Separate with the oil circuit of cavity of resorption；In process of the test, packer is placed in sleeve pipe, is connected on seal head by adapter, set
Guan Ze is connected on connection coupling by telescopic joint head, and when epicoele enters and presses, fluid is entered by the first pressurization hole on cylinder
Enter in the groove of connection coupling, then epicoele is entered by the through hole on groove；When cavity of resorption enters and presses, fluid passes through the company on cylinder
Box cupling enters cylinder body bottom, and the through hole passing through sleeve bottom enters cavity of resorption, and its liquid flow is as shown in the arrow on Fig. 2.?
In this structure, packer not with cylinder inboard wall directly contact, extruding, but the sleeve pipe with inner barrel or plus after the inwall of pipe connect
Touch, extruding forms sealing surface, therefore can be by changing the sleeve pipe being connected on connection coupling even when the specification of packer is different
Joint and change the sleeve pipe of different size, to meet the packer test requirements document of different size.
The maximum difference compared with traditional experimental wwll cylinder of the experimental wwll cylinder of the present invention is in connecing that inner barrel is placed
Cuff structure, the major function of this structure has at 3 points, and one is to separate the oil circuit entering epicoele and cavity of resorption；Two is to insulate at the trial
The black box of device no longer contacts with cylinder inboard wall, but with the internal surface of sleeve pipe being connected to by telescopic joint head on connection coupling
Contact, this allows for only realizing plurality of specifications packer is tried by changing telescopic joint head and sleeve pipe in process of the test
The purpose tested；Three is that the polygonized structure on connection coupling top is matched with the polygon of inner barrel, and this makes to work as packer
When inner barrel is around axial rotation it is therefore prevented that connection coupling follows the possibility of rotation, thus realizing drawing, press, turning round of packer
Leakage test.
Brief description
Fig. 1 is the structural representation of traditional single gauge experimental wwll cylinder.
Fig. 2 is used for the structural representation of the experimental wwll cylinder of many specifications packer for the present invention.
Fig. 3 is the main structure diagram of connection coupling in the present invention.
Fig. 4 is the overlooking the structure diagram of connection coupling in the present invention.
Fig. 5 be the present invention in connection coupling dock with cylinder after overlooking the structure diagram.
In figure is labeled as: 1, cylinder；2nd, packer；3rd, adapter；4th, seal head；5th, connection coupling；501st, groove；
502nd, through hole；503rd, upper seal groove；504th, lower seal groove cavity；6th, the first threaded pressure ring；7th, the second threaded pressure ring；8th, telescopic joint
Head；9th, sleeve pipe；10th, sealing ring；11st, first enters to press hole；12nd, second enters to press hole；13rd, aperture；14th, upper sealing surface；15th, lower sealing
Face.
Specific embodiment
A kind of experimental wwll cylinder for many specifications packer, as shown in Fig. 1,2,3,4,5, including cylinder 1 and packer 2,
Described cylinder includes seal head 4 and the first threaded pressure ring 6 being arranged on outside seal head, and described seal head lower end connects a conversion and connects
3, described adapter is connected with described packer, is additionally provided with screwing on cylinder outside described first threaded pressure ring
Two threaded pressure rings 7, described first threaded pressure ring screws compression seal head on the second threaded pressure ring, under described second threaded pressure ring
The inner barrel at end is connected with a connection coupling 5, and described second threaded pressure ring compresses described connection coupling, described connection coupling
The outer ring setting fluted 501 at middle part, described groove offers a through hole 502 passing through connection coupling center, described groove
Top be provided with seal groove 503, the bottom of described groove is provided with lower seal groove cavity 504, and described box cupling lower end connects a set of
Pipe connector 8, described sleeve pipe union joint is connected with sleeve pipe 9, and described packer is placed in described sleeve pipe；Open up on described cylinder
There are the first pressurization hole and the second pressurization hole, described first pressurizes, and hole is relative with the through hole on described connection coupling to be connect, described second
The lower section that pressurization hole is arranged on described connection coupling is led in the gap between described cylinder and described sleeve pipe union joint.
Upper seal groove on described connection coupling, lower seal groove cavity all arrange sealing ring 10 and cylinder inboard wall between, by cylinder
The oil circuit of internal epicoele and cavity of resorption is separately.Sealing surface 14 and lower sealing surface 15, described upper sealing are provided with described packer
Face and described lower sealing surface are all close to described sleeve pipe setting.Described connection coupling upper end is polygonized structure, this polygonized structure
Match with the polygon of described inner barrel.Described sleeve pipe union joint is provided with two sealings with the junction of described connection coupling
Circle.
Place connection coupling in inner barrel, connection coupling structure (can complete packing as shown in figure 3, top is polygon
The twisting rotation test of device), there is a groove at middle part, has the through hole leading to endoporus in groove, groove respectively have up and down upper seal groove and
Lower seal groove cavity, operationally can by the oil circuit entering epicoele and cavity of resorption separately.In process of the test, packer is placed in sleeve pipe,
It is connected on seal head by adapter, sleeve pipe is then connected on connection coupling by telescopic joint head, when epicoele enters and presses,
Fluid enters to press hole to enter in the groove of connection coupling by first on cylinder, then enters epicoele by the through hole on groove.When
When cavity of resorption enters to press, fluid enters to press hole to enter cylinder body bottom by second on cylinder, passes through sleeve pipe or thickeies the logical of bottom of the tube
Hole enters cavity of resorption.Its liquid flow graph is as shown in the arrow on Fig. 2.In the structure shown here, packer is not directly connect with cylinder inboard wall
Touch, extruding, but the sleeve pipe with inner barrel or plus after pipe contact internal walls, extruding formed sealing surface, therefore when packer rule
Sleeve pipe or the extra strong pipe of different size can be changed by changing the telescopic joint head being connected on box cupling, with full when lattice are different
The packer test requirements document of sufficient different size.
The technique that the present invention is used for the test simulation of experimental wwll cylinder of many specifications packer is as follows:
Step 1, by telescopic joint on telescopic joint head；
Step 2, telescopic joint head are connected on connection coupling；
Step 3, sleeve pipe, telescopic joint head and connection coupling are positioned over inner barrel；
Step 4, packer is connected on adapter；
Step 5, adapter is connected on seal head；
Step 6, by packer, adapter and seal first-class assembly be placed in inside sleeve pipe and connection coupling；
Step 7, the second threaded pressure ring is screwed on cylinder, compress connection coupling；
Step 8, the first threaded pressure ring is screwed on the second threaded pressure ring compression seal head；
Step 9, liquid enter packer inside so that insulating by the centre bore of seal head, adapter and packer
The black box of device expands, and contacts with internal surface of sleeve pipe, and is internally formed epicoele and cavity of resorption at it；
Step 10, by first pressurization hole enter pressure, liquid enter connection coupling groove after, by the through hole in groove according to
Secondary entrance seal head bottom, connection coupling, telescopic joint head and inside pipe casing, and here forms upper cavity pressure, for testing envelope
Every the sealing property of device top seal assembly, liquid flows to as shown by the arrows in Figure 2；
Pressure is entered in step 11, hole of pressurizeing by second, and liquid passes through, below connection coupling lower seal groove cavity, to enter cylinder bottom
Portion, then the bottom by aperture 13 sleeve pipe of sleeve bottom, and here forms cavity of resorption, for testing packer lower seal
The sealing property of assembly, liquid flows to as shown by the arrows in Figure 2；
Step 12, the above step that repeats, the adapter of replacing different size, telescopic joint head and sleeve pipe are to different size
The sealing property of packer is tested.
Described sleeve pipe is existing standard part, and described sleeve pipe union joint is the external member matching with sleeve pipe.
Additionally, the sleeve pipe in the present embodiment also can be replaced by extra strong pipe, all can achieve the positive effect of the present invention.
Claims (5)
1. a kind of experimental wwll cylinder for many specifications packer, including cylinder and packer, described cylinder includes seal head and sets
Put the first threaded pressure ring outside seal head, described seal head lower end connects an adapter, described adapter and described envelope
Be connected every device it is characterised in that: be additionally provided with the second threaded pressure ring screwing on cylinder, institute outside described first threaded pressure ring
The inner barrel stating the second threaded pressure ring lower end is connected with a connection coupling, and described second threaded pressure ring compresses described connection and connects
Hoop, the outer ring setting at the middle part of described connection coupling is fluted, described groove offers one and passes through the logical of connection coupling center
Hole, the top of described groove is provided with seal groove, and the bottom of described groove is provided with lower seal groove cavity, and described box cupling lower end connects
A set of pipe connector, described sleeve pipe union joint is connected with sleeve pipe, and described packer is placed in described sleeve pipe；Open on described cylinder
It is provided with the first pressurization hole and the second pressurization hole, hole is relative with the through hole on described connection coupling connects for described first pressurization, described the
The lower section that two pressurization holes are arranged on described connection coupling is led in the gap between described cylinder and described sleeve pipe union joint.
2. as claimed in claim 1 a kind of experimental wwll cylinder for many specifications packer it is characterised in that: described connection coupling
On upper seal groove, lower seal groove cavity all and cylinder inboard wall between, sealing ring is set, the oil circuit of inner barrel epicoele and cavity of resorption is divided
Open.
3. as claimed in claim 1 a kind of experimental wwll cylinder for many specifications packer it is characterised in that: described packer
It is provided with sealing surface and lower sealing surface, described upper sealing surface and described lower sealing surface are all close to described sleeve pipe setting.
4. as claimed in claim 1 a kind of experimental wwll cylinder for many specifications packer it is characterised in that: described connection coupling
Upper end is polygonized structure, and this polygonized structure is matched with the polygon of described inner barrel.
5. as claimed in claim 1 a kind of experimental wwll cylinder for many specifications packer it is characterised in that: described sleeve pipe connect
Head is provided with two sealing rings with the junction of described connection coupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410281246.0A CN104060981B (en) | 2014-06-23 | 2014-06-23 | Testing shaft for packers in multiple specifications |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410281246.0A CN104060981B (en) | 2014-06-23 | 2014-06-23 | Testing shaft for packers in multiple specifications |
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| CN104060981A CN104060981A (en) | 2014-09-24 |
| CN104060981B true CN104060981B (en) | 2017-01-18 |
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| CN201410281246.0A Active CN104060981B (en) | 2014-06-23 | 2014-06-23 | Testing shaft for packers in multiple specifications |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105157963B (en) * | 2015-07-03 | 2017-10-20 | 北京建筑大学 | A kind of sealed autoclave tested Self-expandable packer |
| CN106319629A (en) * | 2016-09-19 | 2017-01-11 | 中原特钢股份有限公司 | Ultra-high pressure container for producing gallium nitride crystal |
| 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 |
| CN109025905B (en) * | 2018-10-13 | 2024-08-20 | 中国石油化工集团有限公司 | High-temperature high-pressure test shaft circulating cooling sealing container |
| CN109296355A (en) * | 2018-11-30 | 2019-02-01 | 成都托克密封件有限责任公司 | A downhole tool for high temperature and high pressure quickly simulates a test well |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4771633A (en) * | 1986-07-29 | 1988-09-20 | Merip Oil Tools International S.A. | Cell for testing the sealing quality of an oil-well safety-valve, a testing process and valve for use therein |
| RU2236543C2 (en) * | 2003-05-20 | 2004-09-20 | Общество с ограниченной ответственностью "АЛ" | System for pressure testing operation columns |
| CN101994509A (en) * | 2010-10-22 | 2011-03-30 | 武汉海王机电工程技术公司 | Multipurpose ultrahigh-pressure packer tester |
| CN202928792U (en) * | 2012-11-26 | 2013-05-08 | 中国石油集团渤海钻探工程有限公司 | Multifunctional packer testing apparatus |
| CN203961947U (en) * | 2014-06-23 | 2014-11-26 | 中原特钢股份有限公司 | A kind of experimental wwll cylinder for many specifications packer |
-
2014
- 2014-06-23 CN CN201410281246.0A patent/CN104060981B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4771633A (en) * | 1986-07-29 | 1988-09-20 | Merip Oil Tools International S.A. | Cell for testing the sealing quality of an oil-well safety-valve, a testing process and valve for use therein |
| RU2236543C2 (en) * | 2003-05-20 | 2004-09-20 | Общество с ограниченной ответственностью "АЛ" | System for pressure testing operation columns |
| CN101994509A (en) * | 2010-10-22 | 2011-03-30 | 武汉海王机电工程技术公司 | Multipurpose ultrahigh-pressure packer tester |
| CN202928792U (en) * | 2012-11-26 | 2013-05-08 | 中国石油集团渤海钻探工程有限公司 | Multifunctional packer testing apparatus |
| CN203961947U (en) * | 2014-06-23 | 2014-11-26 | 中原特钢股份有限公司 | A kind of experimental wwll cylinder for many specifications packer |
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| CN104060981A (en) | 2014-09-24 |
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Effective date of registration: 20180803 Address after: 459000 531 Industrial Park, Tiger Hill Industrial Cluster, Jiyuan City, Jiaozuo, Henan Patentee after: Henan Zhongyuan special steel equipment manufacturing Co., Ltd. Address before: 459000 Xiao Zhai, Jiyuan Town, Jiyuan City, Henan Patentee before: Zhongyuan Special Steel Co., Ltd. |