CN107724978A - Coiled tubing work vehicle and roller unit, roller - Google Patents
Coiled tubing work vehicle and roller unit, roller Download PDFInfo
- Publication number
- CN107724978A CN107724978A CN201711059207.6A CN201711059207A CN107724978A CN 107724978 A CN107724978 A CN 107724978A CN 201711059207 A CN201711059207 A CN 201711059207A CN 107724978 A CN107724978 A CN 107724978A
- Authority
- CN
- China
- Prior art keywords
- roller
- endoporus
- cylinder
- oil pipe
- continuous oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005096 rolling process Methods 0.000 claims abstract description 7
- 238000010438 heat treatment Methods 0.000 claims description 72
- 239000012530 fluid Substances 0.000 claims description 19
- 238000003466 welding Methods 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 claims description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 14
- 239000007788 liquid Substances 0.000 abstract description 7
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 7
- 239000012224 working solution Substances 0.000 abstract description 6
- 239000007769 metal material Substances 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 5
- 239000007789 gas Substances 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000003032 molecular docking Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/22—Handling reeled pipe or rod units, e.g. flexible drilling pipes
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Pipe Accessories (AREA)
Abstract
The present invention relates to a kind of coiled tubing work vehicle and roller unit, roller.The coiled tubing work vehicle of the present invention includes vehicle frame,Roller of continuous oil pipe unit is installed on vehicle frame,Coiled tubing unit includes base and rolling assembling the roller of continuous oil pipe on base,Roller of continuous oil pipe includes cylinder,Heater is installed in the endoporus of cylinder,The both ends of endoporus are equipped with the baffle board component for the endoporus of cylinder to be closed,Heater heats to cylinder during use,Flow-stopping plate is by the closed at both ends of endoporus,Avoid producing air flow in endoporus,So of a relatively high temperature is remained in the endoporus of cylinder,Heat in endoporus is delivered on the coiled tubing wound on cylinder by cylinder,And coiled tubing is metal material,With heat conductivility,The coiled tubing being so wrapped on roller can be all heated,The working solution avoided in coiled tubing freezes,Cost substantially reduces compared with by way of being purged liquid nitrogen.
Description
Technical field
The present invention relates to a kind of coiled tubing work vehicle and roller unit, roller.
Background technology
At present, continuous oil pipe operation scope has covered the multiple fields such as drilling well, well logging, volume increase and well workover.Continuous oil
Construction operation is typically carried out by coiled tubing work vehicle during pipe operation, as Application No. 201510150628.4 discloses
A kind of coiled tubing work vehicle, the Operation Van include vehicle frame, roller of continuous oil pipe unit are provided with vehicle frame, can also in Operation Van
Steam boiler is installed, roller of continuous oil pipe unit includes base and rolling assembling the roller of continuous oil pipe on base, even
Continuous oil pipe is wrapped on the cylinder of roller, pulls roller of continuous oil pipe to rotate by the conveying device of well head during use, so that
Coiled tubing detachment roller, when winter construction temperature is relatively low, the working solution in coiled tubing can produce icing, can not only make oil
Freezing bursting by freezing is managed, causes serious economic loss, and also results in construction and stops treating, delay production.
Working solution freezes in coiled tubing when continuous oil pipe operation scene is in order to prevent that winter construction temperature is relatively low at present, leads to
Frequently with the method for working solution in liquid nitrogen pump vehicle not timing purging coiled tubing pipeline blowout coiled tubing.Such a main office of method
It is limited to：（1）Scene needs sufficient liquid nitrogen source of the gas；（2）Need lasting liquid nitrogen pump vehicle, liquid nitrogen tank car and related personnel's work on duty
Industry, it is costly.
The content of the invention
It is an object of the invention to provide a kind of coiled tubing work vehicle, with solve existing coiled tubing work vehicle except
The problem of cost is high during ice；Meanwhile the present invention also provides the roller unit and roller of coiled tubing work vehicle.
To achieve the above object, roller of continuous oil pipe of the present invention adopts the following technical scheme that：
Technical scheme 1：Roller of continuous oil pipe, including cylinder, heater is installed in the endoporus of the cylinder, the endoporus
Both ends are equipped with the baffle board component for stopping air flow in endoporus.
Technical scheme 2, on the basis of technical scheme 1：The annular groove of the both ends open of the endoporus of the cylinder outwardly, it is described
Baffle board component passes through on cylinder.
Technical scheme 3, on the basis of technical scheme 2：The baffle board component includes two semicircular flow-stopping plates, and two
Individual flow-stopping plate is installed in the annular groove and the arc-shaped side edges of flow-stopping plate are squeezed with annular groove towards the annular groove wall at the axis of cylinder
Press-fit.
Technical scheme 4, on the basis of any one of technical scheme 1 ~ 3：The heater is be arranged on cylinder interior
Heating tube on wall and with the entrance for being used to enter for heating fluid and for the outlet for heating fluid outflow.
Technical scheme 5, on the basis of technical scheme 4：The heating tube is coiled on the inwall of endoporus in the shape of a spiral.
Technical scheme 6, on the basis of technical scheme 4：The heating tube is fixed in the endoporus of roller by spot welding
On wall.
Technical scheme 7, on the basis of technical scheme 4：Also include the axially extending fixture along endoporus, the fixation
The both ends of part are fixed on roller and medium position coordinates to heating tube application pressure on top surface with heating tube top pressure.
Technical scheme 8, on the basis of technical scheme 4：The heating tube is copper pipe.
The roller of continuous oil pipe unit of the present invention adopts the following technical scheme that：
Technical scheme 1：Roller of continuous oil pipe unit, including base and the roller of continuous oil pipe that is transferred on base, institute
Stating roller of continuous oil pipe includes cylinder, heater is provided with the endoporus of the cylinder, the both ends of the endoporus are equipped with use
In the baffle board component for stopping air flow in endoporus.
Technical scheme 2, on the basis of technical scheme 1：The annular groove of the both ends open of the endoporus of the cylinder outwardly, it is described
Baffle board component passes through on cylinder.
Technical scheme 3, on the basis of technical scheme 2：The baffle board component includes two semicircular flow-stopping plates, and two
Individual flow-stopping plate is installed in the annular groove and the arc-shaped side edges of flow-stopping plate are squeezed with annular groove towards the annular groove wall at the axis of cylinder
Press-fit.
Technical scheme 4, on the basis of any one of technical scheme 1 ~ 3：The heater is be arranged on cylinder interior
Heating tube on wall and with the entrance for being used to enter for heating fluid and for the outlet for heating fluid outflow.
Technical scheme 5, on the basis of technical scheme 4：The heating tube is coiled on the inwall of endoporus in the shape of a spiral.
Technical scheme 6, on the basis of technical scheme 4：The heating tube is fixed in the endoporus of roller by spot welding
On wall.
Technical scheme 7, on the basis of technical scheme 4：Also include the axially extending fixture along endoporus, the fixation
The both ends of part are fixed on roller and medium position coordinates to heating tube application pressure on top surface with heating tube top pressure.
Technical scheme 8, on the basis of technical scheme 4：The heating tube is copper pipe.
The coiled tubing work vehicle of the present invention adopts the following technical scheme that：
Technical scheme 1：Coiled tubing work vehicle, including vehicle frame, coiled tubing unit, the coiled tubing list are installed on vehicle frame
Member includes base and rolling assembling the roller of continuous oil pipe on base, and the roller of continuous oil pipe includes cylinder, the cylinder
Heater is installed, the both ends of the endoporus are equipped with the flow-stopping plate group for stopping air flow in endoporus in the endoporus of body
Part.
Technical scheme 2, on the basis of technical scheme 1：The annular groove of the both ends open of the endoporus of the cylinder outwardly, it is described
Baffle board component passes through on cylinder.
Technical scheme 3, on the basis of technical scheme 2：The baffle board component includes two semicircular flow-stopping plates, and two
Individual flow-stopping plate is installed in the annular groove and the arc-shaped side edges of flow-stopping plate are squeezed with annular groove towards the annular groove wall at the axis of cylinder
Press-fit.
Technical scheme 4, on the basis of any one of technical scheme 1 ~ 3：The heater is be arranged on cylinder interior
Heating tube on wall and with the entrance for being used to enter for heating fluid and for the outlet for heating fluid outflow.
Technical scheme 5, on the basis of technical scheme 4：The heating tube is coiled on the inwall of endoporus in bolt shape.
Technical scheme 6, on the basis of technical scheme 4：The heating tube is weldingly fixed on the inwall of the endoporus of roller.
Technical scheme 7, on the basis of technical scheme 4：The roller also includes the axially extending fixture along endoporus,
The both ends of the fixture are fixed on roller and medium position coordinates to heating tube application pressure on top surface with heating tube top pressure.
Technical scheme 8, on the basis of technical scheme 4：The heating tube is copper pipe.
Technical scheme 9, on the basis of technical scheme 4：The entrance of the heating tube connects with the blast pipe of Operation Van, adds
The outlet of heat pipe and atmosphere, the heating fluid are the tail gas of Operation Van's discharge.
Technical scheme 10, on the basis of technical scheme 4：Steam boiler, the heating tube are additionally provided with the Operation Van
Connected with the steam-return line of steam boiler, the heating fluid is the caused steam of steam boiler.
The beneficial effects of the invention are as follows：The coiled tubing work vehicle of the present invention includes vehicle frame, and continuous oil is provided with vehicle frame
Pipe roller unit, coiled tubing unit include base and rolling assembling the roller of continuous oil pipe on base, coiled tubing rolling
Cylinder includes cylinder, is provided with heater in the endoporus of cylinder, and the both ends of endoporus are equipped with for the endoporus of cylinder to be closed
Baffle board component, heater heats to cylinder during use, and flow-stopping plate avoids the closed at both ends of endoporus in endoporus
Air flow is produced, remains of a relatively high temperature in the endoporus of such cylinder, the heat in endoporus passes through cylinder transmission
On the coiled tubing wound on to cylinder, and coiled tubing is metal material, has heat conductivility, is so wrapped on roller
Coiled tubing can be all heated, and avoided working solution in coiled tubing and frozen, by way of being purged liquid nitrogen compared with cost
It is obvious to reduce.
Brief description of the drawings
Fig. 1 is the structural representation of the roller of continuous oil pipe unit in the embodiment 1 of the coiled tubing work vehicle of the present invention；
Fig. 2 is the fixture for the heating tube in Fig. 1 to be fixed；
Fig. 3 is the partial enlarged drawing of the end of the fixture in Fig. 2；
In accompanying drawing：1st, base；2nd, cylinder；3rd, heating tube；4th, coiled tubing；5th, racker；6th, flow-stopping plate；7th, support frame；8th, turn
Axle；9th, fixture；91st, installing plate；92nd, neck.
Embodiment
Embodiments of the present invention are described further below in conjunction with the accompanying drawings.
The specific embodiment 1 of the coiled tubing work vehicle of the present invention, as shown in Figure 1 to Figure 3, coiled tubing work vehicle includes
Vehicle frame, roller of continuous oil pipe unit is installed on vehicle frame, roller of continuous oil pipe unit includes base 1, and base 1 is provided with two phases
To the support frame 7 of setting, the rolling assembling of rotating shaft 8 of roller is set at the upper end position of support frame on the periphery of the rotating shaft of roller
There is the spoke radially to stretch out, the cylinder 2 of roller is connected by spoke with rotating shaft, and heating is provided with the endoporus of roller
Device, heater are the heating tube 3 coiled in the shape of a spiral on the inwall of roller, the one end open of heating tube 3, other end peace
Equipped with snap joint, the winding direction of the rotation direction of the spiral of heating tube with coiled tubing 4 on roller is adapted to, so when continuous oil
The fluid remained when pipe drives roller rotation in heating tube flows out under the guiding function of the spiral of heating tube from heating tube, most
Flowed out eventually from the opening of heating tube, the fluid in such heating tube will flow out from heating tube in time, avoid ambient temperature
Fluid stops and ice blockage heating tube for a long time in heating tube when relatively low.
Heating tube is fixed on by spot welding on the inwall of cylinder 2, is on the one hand heated when fixing heating tube using welding manner
Pipe be bonded closely with the inwall of cylinder, is easy to conduct heat, the solder joint of another aspect heating tube while also composition heating tube and cylinder it
Between heat-conductive connection part, further lift heat-transfer effect.Roller unit also includes fixture 9, and fixture is along the axial direction of roller
The rod-like structure of extension, the both ends that the both ends of fixture are fixed on cylinder are arranged on by installing plate 91 on the end of cylinder, Gu
Determine neck 92 is distributed with the medium position of part, coordinated by the bottom land and heating tube top pressure of neck 92, heating tube is applied and pushed up
Pressure, further increase the fastness that heating tube is fixed.Heating tube is copper pipe in the present embodiment, and heat conductivility is preferable, and
Intensity and corrosion resistance are relatively preferable.Racker 5 is connected with base, with realizing continuous effective comb when being rotated for roller.
The both ends open of the endoporus of roller is by flow-stopping plate module enclosure, to stop the air flow in endoporus, baffle
Board component includes the flow-stopping plate 6 of two crescent, and the both ends of cylinder are equipped with the annular groove of opening outwardly, and flow-stopping plate 6 is installed on ring
In groove and the arc-shaped side edges of flow-stopping plate realize consolidating for flow-stopping plate with annular groove towards the annular groove wall extrusion fit at the axis of cylinder
Fixed, flow-stopping plate can use the material with heat-insulating property, such as timber or composite board material, the baffle of two crescent
Position after the docking of plate in the middle part of docking site forms the receiving space for accommodating rotating shaft.
During construction gap, roller remains static, and the now work in coiled tubing is also easiest to precooling icing, now
The fluid intake of heating tube is connected by snap joint with the blast pipe of Operation Van, now the tail gas of Operation Van is heating tube
Heating fluid, the tail gas of Operation Van can just be heated by heating tube to roller seals the endoporus of roller and flow-stopping plate
Close, avoid producing air stream circulation in endoporus, make to remain of a relatively high temperature in endoporus, be fitted on the outer wall of cylinder
Coiled tubing will be heated, coiled tubing is metal material, has good heat conductivility, is so wrapped on roller
Coiled tubing can be heated, and the working solution avoided in coiled tubing freezes, with the side purged in the prior art by liquid nitrogen
Formula substantially reduces compared to cost.
The embodiment 2 of the coiled tubing work vehicle of the present invention, in the present embodiment, the inlet and outlet of the heating tube on roller are equal
Provided with the attachment structure for being connected with the steam-return line of the steam boiler in Operation Van, in use, heating tube passes through fast quick access
Head is connected with steam pipe line, and using cutting ferrule nut check cutting ferrule, the inner edge of cutting ferrule is uniformly cut in the seamless steel pipe of steam pipe line,
Effectively sealing is formed, 3 ~ 5MPa of Boiler Steam boiler pressure needs is disclosure satisfy that, passes through steam pair caused by steam boiler
Coiled tubing is heated, and steam is the heating fluid of heater, is added it is, of course, also possible to be passed through hot water in the heater and be used as
The heating fluid of heat, other are same as Example 1, repeat no more.
The embodiment 3 of the coiled tubing work vehicle of the present invention, in the present embodiment, the both ends of coiled tubing are opening,
Connected during connection by snap joint with the pipeline of corresponding heating fluid, no matter the now rotation direction of the spiral of heating tube,
Fluid when roller of continuous oil pipe rotates in heating tube can flow out from heating tube, and other are same as Example 1, no longer superfluous
State.
The embodiment 4 of the coiled tubing work vehicle of the present invention, in the present embodiment, heating tube is steel pipe, certainly can be with
It is aluminum pipe or the preferable material of other heat conductivilitys, other are same as Example 1, repeat no more.
The embodiment 5 of the coiled tubing work vehicle of the present invention, in the present embodiment, heating tube longitudinal direction on the inwall of roller
Snakelike distribution, other are same as Example 1, repeat no more.
The embodiment 6 of the coiled tubing work vehicle of the present invention, in the present embodiment, the heating tube only company of being fixed by welding in
On the inwall of continuous oil pipe roller, other are same as Example 1, repeat no more.
The embodiment 7 of the coiled tubing work vehicle of the present invention, in the present embodiment, flow-stopping plate are semicircle, flow-stopping plate
Butt joint edge is provided with the semicircular avoid holes being adapted to the geomery of rotating shaft, so when two flow-stopping plate docking cards are mounted in interior
After on the step in hole, in the circular avoid holes that avoid holes that flow-stopping plate rotating shaft is in two flow-stopping plates surround, such structure
The breach between flow-stopping plate can be reduced, further reduces the air circulation of the endoporus of roller, lifts closed performance, other and reality
It is identical to apply example 1, repeats no more.
The embodiment 8 of the coiled tubing work vehicle of the present invention, in the present embodiment, the heater in the endoporus of cylinder is
The heat tape being spirally coiled on the inwall of cylinder, cylinder is heated by electrically heated mode, now heat tape housing
It is fixed on the inwall of cylinder, can also be pressed abd fixed on by arc on the inwall of cylinder by gluing mode, other
It is same as Example 1, repeat no more.
The embodiment of the roller of continuous oil pipe unit of the present invention, the roller of continuous oil pipe unit are made with above-mentioned coiled tubing
The structure of roller of continuous oil pipe unit in the embodiment of industry car is identical, repeats no more.
The embodiment of the roller of continuous oil pipe of the present invention, the embodiment of the coiled tubing and above-mentioned coiled tubing work vehicle
In roller of continuous oil pipe structure it is identical, repeat no more.
Claims (10)
1. roller of continuous oil pipe, including cylinder, it is characterised in that：Heater is installed in the endoporus of the cylinder, it is described interior
The both ends in hole are equipped with the baffle board component for stopping air flow in endoporus.
2. roller of continuous oil pipe according to claim 1, it is characterised in that：The both ends open of the endoporus of the cylinder is outwardly
Annular groove, the baffle board component passes through on cylinder.
3. roller of continuous oil pipe according to claim 2, it is characterised in that：The baffle board component includes two semicircles
Flow-stopping plate, two flow-stopping plates are installed in the annular groove and the arc-shaped side edges of flow-stopping plate and annular groove are towards at the axis of cylinder
Annular groove wall extrusion fit.
4. according to the roller of continuous oil pipe described in claim 1 ~ 3 any one, it is characterised in that：The heater is setting
On the inwall of cylinder and with the entrance being used for for heating fluid entrance and adding for the outlet for heating fluid outflow
Heat pipe.
5. roller of continuous oil pipe according to claim 4, it is characterised in that：The heating tube is coiled in endoporus in the shape of a spiral
Inwall on.
6. roller of continuous oil pipe according to claim 4, it is characterised in that：The heating tube is fixed on roller by spot welding
Endoporus inwall on.
7. roller of continuous oil pipe according to claim 4, it is characterised in that：Also include the axially extending fixation along endoporus
Part, the both ends of the fixture are fixed on roller and medium position coordinates to heating tube application pressure on top surface with heating tube top pressure.
8. roller of continuous oil pipe according to claim 4, it is characterised in that：The heating tube is copper pipe.
9. roller of continuous oil pipe unit, including base and the roller of continuous oil pipe that is transferred on base, the continuous oil
Pipe roller is the roller of continuous oil pipe as described in claim 1 ~ 8 any one.
10. coiled tubing work vehicle, including vehicle frame, coiled tubing unit is installed on vehicle frame, the coiled tubing unit includes
The roller of continuous oil pipe of base and rolling assembling on base, the roller of continuous oil pipe include cylinder, it is characterised in that：Institute
State and heater is installed in the endoporus of cylinder, the both ends of the endoporus are equipped with the baffle for stopping air flow in endoporus
Board component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711059207.6A CN107724978A (en) | 2017-11-01 | 2017-11-01 | Coiled tubing work vehicle and roller unit, roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711059207.6A CN107724978A (en) | 2017-11-01 | 2017-11-01 | Coiled tubing work vehicle and roller unit, roller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107724978A true CN107724978A (en) | 2018-02-23 |
Family
ID=61221949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711059207.6A Pending CN107724978A (en) | 2017-11-01 | 2017-11-01 | Coiled tubing work vehicle and roller unit, roller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107724978A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203611843U (en) * | 2013-12-17 | 2014-05-28 | 烟台杰瑞石油装备技术有限公司 | Novel coiled tubing operating vehicle set |
| CN205135474U (en) * | 2015-10-28 | 2016-04-06 | 新奥气化采煤有限公司 | Manage cylinder device in succession |
| WO2016094143A1 (en) * | 2014-12-09 | 2016-06-16 | General Electric Company | Submersible power generators and method of operating thereof |
| CN106837281A (en) * | 2016-11-15 | 2017-06-13 | 中国石油天然气股份有限公司 | The heating method for early warning and device of a kind of electric heating cable |
| CN206488680U (en) * | 2017-01-13 | 2017-09-12 | 佛山市呈阳新材科技有限公司 | A kind of heating roller |
-
2017
- 2017-11-01 CN CN201711059207.6A patent/CN107724978A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203611843U (en) * | 2013-12-17 | 2014-05-28 | 烟台杰瑞石油装备技术有限公司 | Novel coiled tubing operating vehicle set |
| WO2016094143A1 (en) * | 2014-12-09 | 2016-06-16 | General Electric Company | Submersible power generators and method of operating thereof |
| CN205135474U (en) * | 2015-10-28 | 2016-04-06 | 新奥气化采煤有限公司 | Manage cylinder device in succession |
| CN106837281A (en) * | 2016-11-15 | 2017-06-13 | 中国石油天然气股份有限公司 | The heating method for early warning and device of a kind of electric heating cable |
| CN206488680U (en) * | 2017-01-13 | 2017-09-12 | 佛山市呈阳新材科技有限公司 | A kind of heating roller |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180223 |
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| RJ01 | Rejection of invention patent application after publication |