CN206785356U - Simulated test well is used in a kind of downhole tool research and development - Google Patents
Simulated test well is used in a kind of downhole tool research and development Download PDFInfo
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- CN206785356U CN206785356U CN201720643832.4U CN201720643832U CN206785356U CN 206785356 U CN206785356 U CN 206785356U CN 201720643832 U CN201720643832 U CN 201720643832U CN 206785356 U CN206785356 U CN 206785356U
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- pit shaft
- downhole tool
- simulated test
- test well
- inner sleeve
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Abstract
The utility model belongs to downhole tool detection and experimental technique field, a kind of downhole tool research and development simulated test well is disclosed, including pit shaft and inner sleeve, heater strip is wound with the inwall of pit shaft, the inner sleeve is arranged at the inner space of pit shaft and can lifted along pit shaft length direction, it is characterized in that, in the pit shaft opening, flange plate is set, also include automatic heat preserving system, the automatic heat preserving system includes the heater strip, and the temperature sensor and remote control terminal being connected with the heater strip, the temperature sensor is arranged on the inner space of pit shaft.The utility model realizes whole-process automatic guarantor's mild heat, without artificial frequently heating and artificial on duty, can carry out continuous experiment, scientificlly and effectively working condition of the simulation tool in underground.
Description
Technical field
The utility model belongs to downhole tool detection and experimental technique field, is related to downhole tool HTHP simulated test
Device, and in particular to simulated test well is used in a kind of downhole tool research and development.
Background technology
Petroleum Down-hole Tool is the key for realizing petroleum drilling completion requirements, is the precondition and guarantee for completing to bore well-completing process,
With deepening continuously for oil field development, the exploitation demand that various difficulties employ oil reservoir is more and more urgent, and well depth is continuously increased, well type day
Beneficial complicated, these all propose higher requirement to the performance of Petroleum Down-hole Tool, the instrument especially under high-temperature high-pressure state
Reliability it is more crucial.
The ground experiment of Petroleum Down-hole Tool lacks scientific and effective technological means at present, is filled without the simulated test of specialty
Put, it is impossible to which effectively simulation tool in the working condition of underground, on ground try out successful, but goes out after going into the well by many instruments
The problem of existing various.
The downhole tool that simulated test well is mainly used in during oil development should in new product and improvement product scene
With preceding, according to the simulated experiment of onsite application operating mode, to find and improve product structure and technological parameter.Downhole tool generally needs
Want several kms under lower going-into-well deep, working environment is mostly HTHP, and laboratory needs foundation to meet that normal temperature and pressure, normal temperature are high
The requirement of experiment of pressure, high-temperature pressure and high temperature and high pressure environment.But traditional analog test well is difficult to meet above-mentioned requirement of experiment,
Be difficult to scientificlly and effectively simulation tool in the working condition of underground.For example existing simulated test well adds a circle to add to shaft in wall
Heated filament, it is powered when needing heating and carries out heating whole pit shaft；To being heated to 95 DEG C（Normal pressure）Water base boiling, a large amount of vapor
Take away heat；After simulated test well well head and flangeseal, it can be boosted in heating process, it is necessary to artificial pressure release.These behaviour
Make and phenomenon causes pit shaft heat insulation effect difference, it is necessary to artificial frequently heating, it is impossible to realize continuous experiment.
Therefore, how the construction based on existing simulated test well, realize its good heat insulation effect, to scientificlly and effectively mould
Working condition of the plan instrument in underground has great importance.
The content of the invention
As described above, the pit shaft heat insulation effect difference of existing simulated test well is, it is necessary to artificial frequently heating, it is impossible to realizes continuous
Experiment, making it difficult to scientificlly and effectively working condition of the simulation tool in underground.
The utility model is in view of the above-mentioned problems, provide a kind of downhole tool research and development simulated test well.The utility model exists
On the basis of having simulated test well, design is optimized to its structure, the pit shaft for efficiently solving existing simulated test well is protected
The technical problem of temp effect difference.
Specifically, the utility model takes following technical scheme：
Simulated test well, including pit shaft and inner sleeve are used in a kind of downhole tool research and development, are wound with and are added on the inwall of pit shaft
Heated filament, the inner sleeve are arranged at the inner space of pit shaft and can lifted along pit shaft length direction.Set in the pit shaft opening
Put flange plate, in addition to automatic heat preserving system, the automatic heat preserving system includes the heater strip, and with the heater strip
The temperature sensor and remote control terminal of connection, the temperature sensor are arranged on the inner space of pit shaft.
Further, the top of the pit shaft is provided with pressure release ball-and-seat.
As one of preferred embodiment, the inner sleeve can be suspended in the inner space of pit shaft by rope.
As one of preferred embodiment, the inner sleeve is used to place instrument to be tested and connection high pressure injection pipeline.
As one of preferred embodiment, flange pressure cap is set on the flange plate.
Compared with prior art, simulated test well is used in downhole tool research and development described in the utility model, at least with following
Beneficial effect or advantage：（1）Simulated test well, including automatic heat preserving system are used in downhole tool research and development described in the utility model, real
Whole-process automatic guarantor's mild heat is showed, without artificial frequently heating and artificial on duty, continuous experiment can be carried out.This automatic heat preserving
System is in addition to the heater strip including being arranged on shaft in wall, in addition to temperature sensor and remote control terminal, the temperature
Sensor is arranged on the inner space of pit shaft, and remote control terminal receives the feedback signal of the temperature sensor, and controls and add
The working condition of heated filament.
（2）The top of the pit shaft is provided with pressure release ball-and-seat.The setting of pressure release ball-and-seat, when realizing airtight heating
Can timely pressure release, ensure in pit shaft not pressure-bearing, extend the service life of experimental wwll cylinder.In addition, the setting of pressure release ball-and-seat, also real
Constant-pressure and high-temperature is showed（More than 100 DEG C）Experiment be normally carried out.
Brief description of the drawings
Fig. 1 is the structural representation of downhole tool research and development simulated test well described in the utility model.
Description of reference numerals：1st, pit shaft；2nd, inner sleeve；3rd, flange plate；4th, flange pressure cap；5th, inner sleeve high pressure ascending pipe
Line；6th, high pressure injection head；7th, inner sleeve pipe plug；8th, instrument to be tested；9th, pressure release ball-and-seat；10th, temperature sensor；11st, heater strip.
Embodiment
For sake of convenience, hereinafter alleged "left", "right", " on ", " under " and accompanying drawing "left", "right" in itself, " on ",
" under " direction is consistent.It should be noted that in the case where not conflicting, the spy in embodiment and embodiment in the utility model
Sign can be mutually combined.
The present embodiment provides a kind of downhole tool research and development simulated test well.This simulated test well and existing simulated test
There is integrally-built similitude in well, for example include pit shaft 1, and be arranged at the inner space of pit shaft 1 and can be along the length of pit shaft 1
The inner sleeve 2 of direction lifting.Heater strip 11 is wound with the inwall of pit shaft 1, the heater strip 11 is used to add pit shaft 1
Heat, to meet the temperature needed for experiment.It is to be noted that pit shaft 1 is opening, the space of sealing, well are not formed
Temperature inside cylinder 1 is difficult to keep constant state.This requires artificial frequently heating, and artificial on duty, so ensure into
Row continuous experiment.Typically, the heating medium inside pit shaft 1 is water, is heated to 95 DEG C（Normal pressure）Water base boiling, great Liang Shui
Steam takes away heat, causes the temperature inside pit shaft 1 to be difficult to keep and is further lifted, it is impossible to meets part Petroleum Down-hole Tool
Experimental condition requirement.
Heater strip 11 is used for the medium for heating pit shaft 1 and its inside.Heater strip 11 is generally located in the side wall of pit shaft 1,
It can wind along the lateral cross section of pit shaft 1；In a further embodiment, heater strip 11 also can be along the square setting of length of pit shaft 1
In the side wall in pit shaft 1.In addition, heater strip 11 also can use other manner set, on the other hand, the present embodiment do not make it is special
Limit.
The inner sleeve 2 can generally be suspended in the inner space of pit shaft 1 by rope.The inner hollow of inner sleeve 2, at it
Both ends are respectively high pressure injection head 6 and inner sleeve pipe plug 7.Inner sleeve high pressure injection pipeline 5 is preferably provided at high pressure injection head 6
On, and keep connecting with the inner space of inner sleeve 2.As shown in figure 1, deposit instrument 8 to be tested in the inner space of inner sleeve 2.
As shown in figure 1, unlike existing simulated test well, the pit shaft 1 of simulated test well described in the present embodiment is close
Envelope formula；In addition, it also has automatic heat preserving system.As the embodiment of seal shaft 1, in the opening of pit shaft 1
Flange plate 3 is set, further, in order to preferably keep the sealing of pit shaft 1, improves the security of test operation and reliable
Property, multiple flange pressure caps 4 are set on flange plate 3.As for the concrete shape structure of flange plate 3, flange pressure cap 4, this reality
Apply example and do not make special restriction, as long as realizing the flange plate 3 of simulated test well described in the present embodiment, flange pressure cap 4, belong to
In the preferred embodiment of the present embodiment.
In order to timely carry out pressure release to the pit shaft 1 of airtight heating, in the opening of pit shaft 1 and the junction of flange plate 3
Pressure release ball-and-seat is set, ensures not pressure-bearing, and then extend the service life of simulated test well described in the present embodiment in pit shaft 1.
The automatic heat preserving system includes the heater strip 11, and the temperature sensor 10 being connected with the heater strip 11
And remote control terminal（Do not indicated in figure）.The temperature sensor 10 is arranged on the inner space of pit shaft 1, for perceiving, examining
Temperature inside well logging cylinder 1, and by the temperature feedback detected to remote control terminal.In the present embodiment, remote control is whole
Computer is held, and is capable of the display screen of the internal temperature of real-time display pit shaft 1.In addition, remote control terminal is also connected with pit shaft 1
The heater strip 11 in portion, the working condition of heater strip 11 is controlled in real time, to ensure that the inside of pit shaft 1 has good heat insulating ability
Energy.The present embodiment does not make special restriction to the installation site of remote control terminal, and typically, remote control terminal can be with
Away from operation field.After opening and flange plate 3 sealing of pit shaft 1, it can be boosted inside pit shaft 1 in heating process, pass through institute
Whole-process automatic insulation can be realized by stating automatic heat preserving system, without artificial on duty.
In the description of this specification, reference term " embodiment ", " example ", " specific example " or " some examples " etc.
Description mean that combining specific method, device or feature that the embodiment or example describe is contained at least the one of the present embodiment
In individual embodiment or example.In this manual, identical implementation is necessarily directed to the schematic representation of above-mentioned term
Example or example, moreover, specific features, method, apparatus or the feature of description can be in any one or more embodiments or examples
In combine in an appropriate manner.In addition, in the case of not conflicting, those skilled in the art can be by this specification
The different embodiments or example and the feature of different embodiments or example of description are combined and combined.
Claims (5)
1. simulated test well, including pit shaft and inner sleeve are used in a kind of downhole tool research and development, heating is wound with the inwall of pit shaft
Silk, the inner sleeve are arranged at the inner space of pit shaft and can lifted along pit shaft length direction, it is characterised in that in the pit shaft
Opening sets flange plate, in addition to automatic heat preserving system, and the automatic heat preserving system includes the heater strip, and with institute
The temperature sensor and remote control terminal of heater strip connection are stated, the temperature sensor is arranged on the inner space of pit shaft.
2. simulated test well is used in downhole tool research and development according to claim 1, it is characterised in that on the top of the pit shaft
It is provided with pressure release ball-and-seat.
3. simulated test well is used in downhole tool research and development according to claim 1, it is characterised in that the inner sleeve passes through rope
Rope can be suspended in the inner space of pit shaft.
4. the downhole tool research and development simulated test well according to claim 1 or 3, it is characterised in that the inner sleeve is used
Pipeline is injected in placing instrument to be tested and connecting high pressure.
5. simulated test well is used in downhole tool research and development according to claim 1, it is characterised in that is set on the flange plate
Put flange pressure cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720643832.4U CN206785356U (en) | 2017-06-06 | 2017-06-06 | Simulated test well is used in a kind of downhole tool research and development |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720643832.4U CN206785356U (en) | 2017-06-06 | 2017-06-06 | Simulated test well is used in a kind of downhole tool research and development |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206785356U true CN206785356U (en) | 2017-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720643832.4U Active CN206785356U (en) | 2017-06-06 | 2017-06-06 | Simulated test well is used in a kind of downhole tool research and development |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113898316A (en) * | 2021-10-16 | 2022-01-07 | 西南石油大学 | Shale reservoir heating device based on oil pipe conveying |
-
2017
- 2017-06-06 CN CN201720643832.4U patent/CN206785356U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113898316A (en) * | 2021-10-16 | 2022-01-07 | 西南石油大学 | Shale reservoir heating device based on oil pipe conveying |
| CN113898316B (en) * | 2021-10-16 | 2023-08-29 | 西南石油大学 | Shale reservoir heating device based on oil pipe conveying |
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