CN105987811B - It is a kind of for testing the device of Self-expanding packer - Google Patents
It is a kind of for testing the device of Self-expanding packer Download PDFInfo
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- CN105987811B CN105987811B CN201510090165.7A CN201510090165A CN105987811B CN 105987811 B CN105987811 B CN 105987811B CN 201510090165 A CN201510090165 A CN 201510090165A CN 105987811 B CN105987811 B CN 105987811B
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- expanding packer
- closeouts
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- 238000012360 testing method Methods 0.000 title claims abstract description 37
- 239000007788 liquid Substances 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 26
- 238000007789 sealing Methods 0.000 claims description 22
- 238000005485 electric heating Methods 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 claims description 10
- 230000000903 blocking effect Effects 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims 1
- 230000003068 static effect Effects 0.000 description 8
- 238000012856 packing Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 239000007864 aqueous solution Substances 0.000 description 4
- 238000005336 cracking Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 230000001788 irregular Effects 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- 239000001103 potassium chloride Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The present invention provides a kind of for testing the device of Self-expanding packer comprising: for accommodating the cylinder of Self-expanding packer, cylinder includes the first end for being provided with inlet and liquid outlet and the second end for being provided with observation panel；Closeouts, closeouts are used to block the central tube of Self-expanding packer；It is connected to the fixing piece of cylinder, fixing piece is for fixing Self-expanding packer；And it is connected to the relief valve of liquid outlet, wherein inlet is for connecting pressure testing device.The envelope pressure energy power of Self-expanding packer under the conditions of huge discharge can be tested using this device.
Description
Technical field
It is the present invention relates to petroleum works field, in particular to a kind of for testing the device of Self-expanding packer.
Background technique
In the naked eye staged fracturing construction in Oil-Gas Well Engineering field, Self-expanding packer is as a kind of novel pit shaft
The zonal isolation tool of Open-Hole Section, needing can to irregular borehole and the larger wellbore progress of amplification degree in huge discharge fracturing process
The Inter-zonal packing leaned on, it is therefore desirable to it carries out Self-expanding packer and the envelope pressure of irregular borehole is tested under the conditions of huge discharge,
To verify its performance.Existing Self-expanding packer experimental rig is unable to test under the conditions of huge discharge (fracturing fluid injected
Discharge capacity is greater than or equal to 1m3/ s) Self-expanding packer envelope pressure energy power.
Summary of the invention
The technical problems to be solved by the invention are to provide a kind of self-expansion type packing that can be tested under the conditions of huge discharge
The device of the envelope pressure energy power of device.To solve the above problems, the present invention provides a kind of for testing the dress of Self-expanding packer
Set, comprising: for accommodating the cylinder of Self-expanding packer, cylinder include be provided with inlet and liquid outlet first end and
It is provided with the second end of observation panel；Closeouts, closeouts are used to block the central tube of Self-expanding packer；It is connected to cylinder
Fixing piece, fixing piece is for fixing Self-expanding packer；And the relief valve at liquid outlet is set, wherein inlet
For connecting pressure testing device.
In a specific embodiment, fixing piece is connected to closeouts, and fixing piece fixes self-expanding by closeouts
Formula packer.
In a specific embodiment, fixing piece and closeouts are integrally formed and are configured to one end and can be sleeved on certainly
On the end of the central tube of the inflatable packer and other end may be mounted at the sealing cover of first end.
In a specific embodiment, device further includes the centering ring that periphery wall is connected to the internal perisporium of cylinder, righting
Ring can be sleeved on central tube on one end of second end.
In a specific embodiment, centering ring is provided with axially extending and both ends and is respectively turned in centering ring
The channel of both ends of the surface.
In a specific embodiment, cylinder is metalwork, is distributed on the internal perisporium of cylinder densely arranged several
The pit formed between protrusion and adjacent protrusion.
In a specific embodiment, the cross section of chamber made of the internal perisporium of cylinder encloses is ellipse.
In a specific embodiment, device further includes the heating component for heating cylinder.
In a specific embodiment, heating component includes the water tank being sleeved on the periphery wall of cylinder and is connected to
The electric heating of water tank pumps.
In a specific embodiment, water tank includes the casing for covering on cylinder and connection and pumping in electric heating, and
It is separately mounted to the first end cover and second end cover at casing both ends.
According to the present invention, cylinder can simulate the borehole wall of irregular open hole pit shaft.Water flow flows into, from inlet from pressure release
Valve outflow, can simulate the flow under the conditions of the huge discharge of open hole shaft construction section.Relief valve has the function of pressure stabilizing, Ke Yiyong
Pressure under the conditions of the huge discharge of simulation open hole shaft construction section.At the same time it can also from observation panel self-expansion type insulate
Whether device completes closure under the conditions of simulating huge discharge.Other features and advantages of the present invention will be explained in the following description
It states.
Detailed description of the invention
The invention will be described in more detail below based on embodiments and refering to the accompanying drawings.Wherein:
Fig. 1 is the broken section signal of the device for testing Self-expanding packer of one embodiment of the present invention
Figure.
In the accompanying drawings, identical component uses identical appended drawing reference.The attached drawing is not drawn according to the actual ratio.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings.
As shown in Figure 1, the device 100 for testing Self-expanding packer includes cylinder 10, sealing cover 17 and pressure release
Valve 40.Self-expanding packer 200 is arranged in cylinder 10, and Self-expanding packer 200 generally comprises central tube 201 and setting
Expansion sealing packing element 202 on 201 periphery wall of central tube.Central tube 201 is metal tube, and both ends are usually provided with screw thread,
In the present embodiment, the screw thread at this both ends is external screw thread.Expansion sealing packing element 202 generally by water-swellable and/or is met oily swollen
Swollen rubber is made.
Cylinder 10 includes pressure-bearing pipe 11, first sleeve 12 and second sleeve 13.Pressure-bearing pipe 11 is the main structure of cylinder 10.
Pressure-bearing pipe 11 is configured to cylindrical shape.External screw thread is provided in the first end and second end of pressure-bearing pipe 11.First sleeve 12 and
The internal screw thread matched with the external screw thread, such first sleeve 12 and second sleeve 13 are provided on the internal perisporium of two sleeves 13
It can be threadedly coupled to the first end and second end of pressure-bearing pipe 11 respectively.When first sleeve 12 and 13 sets of second sleeve are attached to pressure-bearing
When on pipe 11, the inner cavity for accommodating Self-expanding packer 200 is formed in cylinder 10.The internal perisporium of cylinder 10 is mainly used to
Simulate open hole well barrel.The first end of cylinder 10 includes the first end of first sleeve 12 and pressure-bearing cylinder 11.The second end of cylinder 10
Second end including second sleeve 13 and pressure-bearing cylinder 11.
Cylinder 10 further includes inlet 15, liquid outlet 16 and the observation panel 14 for running through cylinder 10.In the present embodiment,
The first end of pressure-bearing cylinder 11 is arranged in inlet 15 and liquid outlet 16, and the end of second sleeve 13 is arranged in observation panel 14.Feed liquor
Mouth 15 is for connecting pressure testing device.The pressure testing device can be pressure pump or hydraulic testpump.Preferably, the setting of observation panel 14 exists
The center of the end of second sleeve 13.
The end of first sleeve 12 also sets up threaded connection hole 19.The extending direction at 19 both ends of threaded connection hole is first set
The axial direction of cylinder 12.Internal screw thread is provided on the inner wall of threaded connection hole 19.
Sealing cover 17 includes closure part 20 and the fixed part 21 being connected with closure part 20.Closure part 20 is in tubbiness, is blocked
Internal screw thread is provided on the internal perisporium in portion 20.In this way, the closure part 20 of sealing cover 17 can be sleeved on Self-expanding packer
On one end of 200 central tube 201, and it is threadedly coupled with the formation of central tube 201.Closure part 20 has just blocked center as a result,
Pipe 201, while sealing cover 17 is fixed to each other with Self-expanding packer 200.Fixed part 21 is the end that closure part 20 is arranged in
And the coaxial cylindrical body with closure part 20.External screw thread is provided on the periphery wall of fixed part 21.The external screw thread of fixed part 21 can be with
It is matched with the threaded connection hole 19 of first sleeve 12, so that sealing cover 17 is fixed in first sleeve 12.In turn, sealing cover 17
Self-expanding packer 200 can be fixed on cylinder 10.Preferably, threaded connection hole 19 and sealing cover 17 are coaxial.In this way,
Self-expanding packer 200 is coaxial with cylinder 10 after being installed on sealing cover 17.
Device 200 for testing Self-expanding packer further includes relief valve 40.Relief valve 40 is arranged in liquid outlet 16
On.When pressure at the liquid outlet 16 of cylinder 10 reaches the cracking pressure value of relief valve 40, relief valve 40 is opened, so that cylinder
Pressure in 10 maintains cracking pressure value.Relief valve 40 is used as leakage fluid dram and voltage-stablizer in envelope pressure test.
Envelope pressure test to Self-expanding packer 200 includes static pressure test stage and huge discharge test phase.For surveying
When trying the test Self-expanding packer 200 of device 100 of Self-expanding packer, sealing cover 17 is first installed to self-expansion type envelope
Every on device 200, then sealing cover 17 is installed on cylinder 10.For meeting water Self-expanding packer 200, then by cylinder
10 immerse in aqueous solution, and make in cylinder 10 full of aqueous solution.It is molten that the aqueous solution can be the potassium chloride that mass concentration is 3%
Liquid.It is soaked for a period of time in this way, such as 72 hours, expands Expansion sealing packing element 202 sufficiently.Then by the second end of cylinder 10
Aqueous solution emptying.Inlet 15 is finally connected into pressure pump, the cracking pressure value of relief valve 40 is arranged to static pressure test pressure
Value starts to carry out static pressure test.
In static pressure test, pressure pump is connected into inlet 15, opens pressure pump pressurization until the unlatching of relief valve 40, is closed
Pressure pump, the pressure for the chamber that at this moment periphery wall of the internal perisporium Yu central tube 201 of the first end of pressure-bearing cylinder 11 is formed are static pressure
Pressure value is tested, static pressure test pressure value such as can be 10MPa.Since the central tube 201 of Self-expanding packer 200 is sealed
It is stifled, the indoor pressure of the chamber can only the gap between Expansion sealing packing element 202 and pressure-bearing cylinder 11 carry out pressure release, at this moment, if from
Observation panel 14 has observed that liquid oozes out between Self-expanding packer 200 and cylinder 10, then proves in the static pressure test pressure
Self-expanding packer 200 does not block cylinder 10 under power.If not observed that liquid is insulated from self-expansion type from observation panel 14
It is oozed out between device 200 and cylinder 10, then proves that Self-expanding packer 200 has blocked cylinder under the static pressure test pressure
10, huge discharge test is then carried out again.
In huge discharge test, inlet 15 connects hydraulic testpump, and the cracking pressure of relief valve is turned up to big row
Measure pressure testing force value.Huge discharge test pressure value such as can be 20MPa.Hydraulic testpump is opened, is infused using hydraulic testpump
Liquid simulates the fracturing fluid injected into pit shaft, its discharge capacity is arranged to target discharge capacity value.The target discharge capacity value for example can be
1.2m3/min.Then seen whether that liquid oozes out between Self-expanding packer 200 and cylinder 10 from observation panel 14, if
It has observed that liquid oozes out between Self-expanding packer 200 and cylinder 10 from observation panel 14, has then proved to test in huge discharge
Middle Self-expanding packer 200 does not block cylinder 10；If not observed liquid from Self-expanding packer from observation panel 14
It is oozed out between 200 and cylinder 10, then proves that Self-expanding packer 200 has blocked cylinder 10 in huge discharge test, thus
Prove that the Self-expanding packer 200 meets the live requirement of staged fracturing construction.
In one embodiment, the device 100 for testing Self-expanding packer further includes centering ring 18.Centering ring 18
Central tube 201 can be sleeved on one end of the second end of cylinder 10, i.e., centering ring 18 can be sleeved on the back of central tube 201
One end from sealing cover 17.Axially extending channel is provided on centering ring 18.The both ends in channel are respectively turned in centering ring 18
Two end faces.The channel can avoid centering ring 18 from blocking effusion without it is observed that leakage by fluid.Channel example
As can be the axial grooving being arranged on centering ring 18 formation.Centering ring 18 can be by the end of Self-expanding packer 200
It lifts, so that Self-expanding packer 200 and cylinder 10 are coaxial, is more advantageous to 200 even inflation of Self-expanding packer, in this way
The working condition coaxial always with pit shaft of Self-expanding packer 200 can be simulated.Furthermore it is also possible to avoid Self-expanding packer
Device 100 and 17 junction of sealing cover torque it is excessive.
In one embodiment, the device 100 for testing Self-expanding packer further includes heating component 50.Heating group
Part 50 includes water tank 51 and the electric heating pump 57 for being connected to water tank.Water tank 51 is sleeved on the periphery wall of pressure-bearing cylinder 11.Water tank
51 include water inlet 54 and water outlet 53.Electric heating pump 57 can pump for heat cycles.The outlet of electric heating pump 57 connects water inlet
The entrance of mouth 54, electric heating pump 57 connects water outlet 53.Water is filled in water tank 51 and electric heating pump 57, electric heating pump 57 is used for
Heating water simultaneously recycles these hot water of pumping.After hot water is input in water tank 51, by its heat transfer to pressure-bearing cylinder 51, hold as a result,
The temperature of pressure cylinder 51 increases.The temperature that electric heating pump 57 can be exported the hot water of output is controlled in a preset value.In general,
When the temperature of pressure-bearing cylinder 51 is heated to a steady state value, this steady state value is slightly below preset value.It at this moment, can be pre- by setting
If value makes the temperature on pressure-bearing cylinder 51 reach a target value.This target value may be set to the well at the scene of staged fracturing construction
Lower temperature value, in this way the device 100 i.e. analog downhole temperature for being used to test Self-expanding packer, so that the temperature of the test
Degree condition can also approach site environment.It is, of course, also possible to which the temperature control for being connected to the heating element of electric heating pump 57 is arranged
Device, the temperature controller are arranged on cylinder 11, which can open and close the heating of electric heating pump 57 according to the temperature on cylinder 11
Component makes the temperature of cylinder 11 reach target value.The target value may be set to 90 DEG C.In the present embodiment, water tank 51 includes set
Pipe 52, first end cover 56 and second end cover 55.Casing 52 is tubulose.Water inlet 54 and water outlet 53 are arranged on casing 52.
52 sets of casing on pressure-bearing cylinder 11.First end cover 56 and second end cover 55 in a ring, are sleeved on pressure-bearing cylinder 11 and solid respectively
Fixed and sealing sleeve pipe 52.In this way, casing 52, pressure-bearing cylinder 11, first end cover 56 and second end cover 55 are synthesis water tank 51.
In one embodiment, cylinder 10 is metalwork.To the internal perisporium (i.e. the inner surface of pressure-bearing cylinder 11) of cylinder 10 into
The processing of row surface galling, several densely arranged protrusions are formed on the internal perisporium of cylinder 10, are formed between adjacent protrusion
Pit.In this way can protrusion on the internal perisporium of cylinder 10 on accurate simulation open hole well bore wall, to obtain closer in naked
The effect of well shaft, and convex portion is relatively more firm, will not squeeze when Self-expandable packer blocks and fall and influence test effect
Fruit.In addition, the cylinder 10 of metal is easy to carry out surface galling processing.
In one embodiment, the cross section of the inner cavity of pressure-bearing cylinder 11 is ellipse.I.e. cylinder 10 internal perisporium enclose and
At chamber cross section be ellipse.The cross section for the open hole wellbore section that Self-expanding packer 200 is insulated is similar to circle
Shape, but irregular, after the data for measuring the wellbore section, take its maximum hole diameter and minimum hole diameter as above-mentioned ellipse long axis with
Short axle, in this way, the borehole wall shape under the maximum conditions of internal perisporium, that is, analog of the cylinder 10 wellbore section.
It should be noted that inlet 15 and liquid outlet 16 are not limited to be arranged on pressure-bearing cylinder 11, inlet 15 and out liquid
Mouth 16 can also be arranged in first sleeve 12, and observation panel 14 is also not necessarily limited to be arranged in second sleeve 13, and observation panel 14 may be used also
The second end of pressure-bearing cylinder 11 is arranged in.The first end of cylinder 10 is arranged in 16 inlet 15, liquid outlet need as a result,
The second end of cylinder 10 is arranged in 14 need of observation panel.Come in addition, closure part 20 and fixed part 21 can be split, blocks
Portion 20 and fixed part 21 can be replaced with closeouts and fixing piece respectively, and closeouts, which only need to realize, blocks central tube 201, and consolidates
Determining part only needs realization that cylinder 10 and Self-expanding packer 200 is relatively fixed, it follows that sealing cover 17 is equivalent to
Closeouts and the integrally formed preferred embodiment of fixing piece.For example, closeouts can be the end cap for covering 201 one end of central tube, envelope
Blocking piece is also possible to that the plug of central tube 201 can be blocked.
Although by reference to preferred embodiment, invention has been described, the case where not departing from the scope of the present invention
Under, various improvement can be carried out to it and can replace component therein with equivalent.Especially, as long as there is no structures to rush
Prominent, items technical characteristic mentioned in the various embodiments can be combined in any way.The invention is not limited to texts
Disclosed in specific embodiment, but include all technical solutions falling within the scope of the claims.
Claims (6)
1. a kind of for testing the device of Self-expanding packer, comprising:
For accommodating the cylinder of Self-expanding packer, the cylinder include be provided with inlet and liquid outlet first end and
It is provided with the second end of observation panel；The center of second end end is arranged in observation panel；
It further include sealing cover, the sealing cover includes closeouts and fixing piece, and the closeouts are for blocking the self-expansion type
The central tube of packer；Fixing piece is connected to the cylinder, and the fixing piece is for securing the above Self-expanding packer；With
And
Relief valve at the liquid outlet is set,
Wherein, the inlet is for connecting pressure testing device；
Described device further includes the centering ring that periphery wall is connected to the internal perisporium of the cylinder, and the centering ring is sleeved on central tube
On one end of the second end, the centering ring is provided with axially extending and both ends and is respectively turned in the centering ring
Both ends of the surface channel；
Described device further includes the heating component for heating the cylinder, and the heating component includes being sleeved on the cylinder
Water tank on periphery wall and the electric heating being connected to outside water tank pump.
2. the apparatus according to claim 1, which is characterized in that the fixing piece is connected to the closeouts, the fixation
Part fixes the Self-expanding packer by the closeouts.
3. the apparatus of claim 2, which is characterized in that the fixing piece and closeouts integrated molding and structure
It makes on the end that can be sleeved on the central tube of the Self-expanding packer for one end and the other end may be mounted at described
On the sealing cover of one end.
4. device according to any one of claim 1 to 3, which is characterized in that the cylinder is metalwork, the cylinder
Internal perisporium on the pit that is formed between several protrusions and adjacent protrusions is distributed with.
5. device according to any one of claim 1 to 3, which is characterized in that the internal perisporium of the cylinder encloses
Chamber cross section be ellipse.
6. the apparatus according to claim 1, which is characterized in that the water tank include cover it is on the cylinder and connect in
The casing of the electric heating pump, and it is separately mounted to the first end cover and second end cover at described sleeve pipe both ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510090165.7A CN105987811B (en) | 2015-02-27 | 2015-02-27 | It is a kind of for testing the device of Self-expanding packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510090165.7A CN105987811B (en) | 2015-02-27 | 2015-02-27 | It is a kind of for testing the device of Self-expanding packer |
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| Publication Number | Publication Date |
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| CN105987811A CN105987811A (en) | 2016-10-05 |
| CN105987811B true CN105987811B (en) | 2019-07-09 |
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| CN201510090165.7A Active CN105987811B (en) | 2015-02-27 | 2015-02-27 | It is a kind of for testing the device of Self-expanding packer |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3184752B2 (en) * | 1995-10-23 | 2001-07-09 | ライト工業株式会社 | Injection inner pipe used for double pipe double packer method |
| US7431098B2 (en) * | 2006-01-05 | 2008-10-07 | Schlumberger Technology Corporation | System and method for isolating a wellbore region |
| US8485265B2 (en) * | 2006-12-20 | 2013-07-16 | Schlumberger Technology Corporation | Smart actuation materials triggered by degradation in oilfield environments and methods of use |
| CN101936156B (en) * | 2010-09-10 | 2012-11-07 | 中国石油天然气股份有限公司 | Self-expanding packer borehole simulation test device |
| CN201747358U (en) * | 2010-09-10 | 2011-02-16 | 中国石油天然气股份有限公司 | Self-expanding packer borehole simulation test device |
| CN202442844U (en) * | 2012-02-14 | 2012-09-19 | 中国石油天然气股份有限公司 | Water-sensitive self-expanding seal test device |
| CN202547910U (en) * | 2012-03-06 | 2012-11-21 | 中国石油天然气集团公司 | Laboratory apparatus for testing self-expanding packer |
| CN102721722B (en) * | 2012-06-20 | 2014-07-09 | 扬州大学 | In-situ thermal response testing method of stratified thermal properties of underground rock and soil |
| CN102854216A (en) * | 2012-09-17 | 2013-01-02 | 长沙开元仪器股份有限公司 | Constant temperature type calorimeter and outer barrel thereof |
| US20140102726A1 (en) * | 2012-10-16 | 2014-04-17 | Halliburton Energy Services, Inc. | Controlled Swell-Rate Swellable Packer and Method |
| CN103279158B (en) * | 2013-04-18 | 2014-12-24 | 中国地质大学（武汉） | Temperature control-pressure control underground water transfluent pollution simulation system |
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