CN105443115A - Device for detecting tail end position of mobile electric igniter - Google Patents
Device for detecting tail end position of mobile electric igniter Download PDFInfo
- Publication number
- CN105443115A CN105443115A CN201510887737.4A CN201510887737A CN105443115A CN 105443115 A CN105443115 A CN 105443115A CN 201510887737 A CN201510887737 A CN 201510887737A CN 105443115 A CN105443115 A CN 105443115A
- Authority
- CN
- China
- Prior art keywords
- motion bar
- magnetic ring
- electric igniter
- portable electric
- separation sleeve
- 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.)
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- 238000000926 separation method Methods 0.000 claims description 45
- 238000001514 detection method Methods 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 239000007769 metal material Substances 0.000 claims description 4
- 238000002955 isolation Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 description 8
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 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
- E21B47/00—Survey of boreholes or wells
- E21B47/09—Locating or determining the position of objects in boreholes or wells, e.g. the position of an extending arm; Identifying the free or blocked portions of pipes
Landscapes
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Geophysics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention provides a device for detecting the tail end position of a movable electric igniter, which comprises an isolation sleeve (12) and a movable rod (17), wherein the isolation sleeve (12) is sleeved outside the movable rod (17), the axis of the movable rod (17) is arranged along the horizontal direction, the right end of the isolation sleeve (12) is closed, an elastic part capable of pushing the movable rod (17) to move leftwards is arranged between the movable rod (17) and the isolation sleeve (12), a driven part (9) capable of moving leftwards along with the movable rod (17) is arranged outside the isolation sleeve (12), and the device for detecting the tail end position of the movable electric igniter further comprises a measuring element (6) for detecting the position of the driven part (9). This a device for portable electric igniter end position detects has realized that the automatic check that the well head valve was crossed to the some firearm bottom, improves field operation's reliability and work efficiency, reduces the accident risk.
Description
Technical field
The present invention relates to oil exploration equipment field, specifically a kind of device detected for portable electric igniter terminal position.
Background technology
The portable igniter of current oilfield fireflood well, after completing igniting, needs to put forward in well, when igniter rises to well head, accurately must determine that the position of igniter end is on head valve top, to close head valve, otherwise will spot failure firearm and head valve.Current method is before igniter is gone into the well, range points firearm end several meters of mark or write down the number of turns that cable coils on cylinder, when igniter rises to close to well head, must carefully slowly promote, due to HTHP in well, have dirt again, mark is difficult to see clearly, be difficult to the position determining igniter end, very easily occur accident.
Summary of the invention
In order to overcome in prior art the problem portable igniter put forward cannot detect portable igniter terminal position when well head crosses head valve position, the invention provides a kind of device detected for portable electric igniter terminal position, this device being used for the detection of portable electric igniter terminal position achieves the automatic detection that head valve is crossed in igniter bottom, improve reliability and the operating efficiency of field operation, reduce accident risk.
The technical solution adopted for the present invention to solve the technical problems is: a kind of device detected for portable electric igniter terminal position, comprise separation sleeve and motion bar, separation sleeve is sheathed on outside motion bar, the axis of motion bar is arranged in the horizontal direction, the right-hand member of separation sleeve is closed, the elastomeric element that can promote motion bar and be moved to the left is provided with between motion bar and separation sleeve, be provided with the driven member that together can be moved to the left with motion bar outside separation sleeve, the described device for portable electric igniter terminal position detection also comprises the measuring cell for detecting driven member position.
This elastomeric element is Compress Spring, and the two ends of Compress Spring are connected with separation sleeve and motion bar respectively, is provided with the motion bar inner chamber for installing Compress Spring in the right side of motion bar.
In motion bar, cavity inner sleeve is provided with spring righting rod, and Compress Spring is set on outside spring righting rod, and the right-hand member of spring righting rod and the right-hand member of separation sleeve are connected and fixed, and is provided with the pressure guide hole be communicated with outside motion bar and in motion bar inner chamber in motion bar.
Be arranged with internal magnetic ring outside motion bar, motion bar is also provided with the annular projection for fixing internal magnetic ring outward.
Driven member is the outer magnetic ring be set in outside separation sleeve, and the position of this outer magnetic ring is corresponding with the position of internal magnetic ring, and the material of separation sleeve is without magnetic metal material, and internal magnetic ring and this outer magnetic ring are attracted each other.
Be arranged with outer magnetic ring cover outside driven member, outer magnetic ring cover is tubular structure, and outer magnetic ring cover is containing annular groove, and driven member is arranged in this annular groove, and the left end of outer magnetic ring cover is provided with block rubber cushion.
The left end of separation sleeve is provided with the mounting disc of annular, and measuring cell is the microswitch of its right end face being arranged on this mounting disc, and along the axis direction of motion bar, the position of this microswitch is corresponding with the position of rubber cushion.
Signal string holes is provided with in this mounting disc, one end of signal string holes is connected with this microswitch, the other end of signal string holes is arranged on the outward flange of this mounting disc, is provided with the holding wire be connected with this microswitch in signal string holes, and the other end of signal string holes is provided with holding wire sealing device.
Its right end face of this mounting disc is also fixed with spacing ring and sheath centering ring; the axis of sheath centering ring and the dead in line of separation sleeve; sheath is arranged with outside separation sleeve; outer magnetic ring is set in sheath; sheath is the tubular that left end open right-hand member is closed; left end and the sheath centering ring of sheath seal grafting, and spacing ring is less than the external diameter of outer magnetic ring cover to the distance of the axis of separation sleeve, and this microswitch is protected in the shift position that spacing ring can overlap to left movement limit outer magnetic ring at outer magnetic ring cover.
This device being used for the detection of portable electric igniter terminal position also comprises device case, device case is three-port structure, first connector of device case upward, second connector of device case downward, 3rd connector of device case is towards right side, the left end of separation sleeve with the 3rd of device case the connector is corresponding is tightly connected, the left end of motion bar is plugged in the 3rd connector of device case.
The left end of motion bar is provided with catch, and catch in the vertical direction is curved, and the diameter of a circle corresponding to this arc equals the diameter of portable electric igniter.
The invention has the beneficial effects as follows; this device being used for the detection of portable electric igniter terminal position promotes motion bar and baffle ring by Compress Spring; and through magnetic seal interlock, outer magnetic ring cover is synchronized with the movement; trigger microswitch action; send alarm signal or shutdown; realize the automatic detection that head valve is crossed in igniter bottom, improve reliability and the operating efficiency of field operation, reduce accident risk.
Accompanying drawing explanation
The Figure of description forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the presidential structural representation of the device that this detects for portable electric igniter terminal position.
Fig. 2 is the enlarged diagram at motion bar 17 place.
Fig. 3 is the sectional view along A-A direction in Fig. 1.
Reference numeral in figure: 1, igniter sealing device; 2, device case; 3, holding wire sealing device; 4, signal string holes; 5, spacing ring; 6, measuring cell; 7, rubber cushion; 8, outer magnetic ring cover; 9, driven member; 10, sheath; 11, internal magnetic ring; 12, separation sleeve; 13, bullet is compressed; 14, spring righting rod; 15, motion bar inner chamber; 16, pressure guide hole; 17, motion bar; 18, sheath centering ring; 19, the first O-ring seal; 20, screw; 21, the second O-ring seal; 22, nut; 23, head valve; 24, igniter bottom face; 25, baffle ring; 26, igniter.
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
A kind of device detected for portable electric igniter terminal position, comprise separation sleeve 12 and motion bar 17, separation sleeve 12 is sheathed on outside motion bar 17, the axis of motion bar 17 is arranged in the horizontal direction, the right-hand member of separation sleeve 12 is closed, the elastomeric element that can promote motion bar 17 and be moved to the left is provided with between motion bar 17 and separation sleeve 12, the driven member 9 that together can be moved to the left with motion bar 17 is provided with outside separation sleeve 12, the described device for portable electric igniter terminal position detection also comprises the measuring cell 6 for detecting driven member 9 position, as depicted in figs. 1 and 2.
In the present embodiment, the material of this elastomeric element is metal, the material of motion bar 17 is metal, this elastomeric element is Compress Spring 13, the two ends of Compress Spring 13 are connected with the right-hand member of separation sleeve 12 and motion bar 17 respectively, are provided with the motion bar inner chamber 15 for installing Compress Spring 13 in the right side of motion bar 17.Spring righting rod 14 is arranged with in motion bar inner chamber 15, Compress Spring 13 is set on outside spring righting rod 14, the right-hand member of spring righting rod 14 and the right-hand member of separation sleeve 12 are connected and fixed, and are provided with the pressure guide hole 16 be communicated with outside motion bar 17 and in motion bar inner chamber 15, as shown in Figure 1 in motion bar 17.
In the present embodiment, outside motion bar 17, be arranged with internal magnetic ring 11, the outer annular projection be also provided with for fixing internal magnetic ring 11 of motion bar 17.Driven member 9 is for being set in the outer magnetic ring outside separation sleeve 12, the position of this outer magnetic ring is corresponding with the position of internal magnetic ring 11, the material of separation sleeve 12 is without magnetic metal material, when internal magnetic ring 11 is installed with this outer magnetic ring, polarity is contrary, internal magnetic ring 11 and this outer magnetic ring are attracted each other, and such internal magnetic ring 11 moves this outer magnetic ring synchronizing moving of drive.
In the present embodiment, be arranged with outer magnetic ring cover 8 outside driven member 9, outer magnetic ring cover 8 is tubular structure, and outer magnetic ring cover 8 is containing annular groove, and driven member 9 is arranged in this annular groove, and the left end of outer magnetic ring cover 8 is provided with block rubber cushion 7.The left end of separation sleeve 12 is provided with the mounting disc (as flange) of annular, measuring cell 6 is for being arranged on the microswitch of its right end face of this mounting disc, along the axis direction of motion bar 17, the position of microswitch is corresponding with the position of rubber cushion 7, namely outer magnetic ring cover 8 is moved to the left rear rubber cushion 7 and can touches microswitch, as shown in Figure 2.
In the present embodiment, signal string holes 4 is provided with in this mounting disc, one end of signal string holes 4 is connected with microswitch, the other end of signal string holes 4 is arranged on the outward flange of this mounting disc, be provided with the holding wire be connected with microswitch in signal string holes 4, the other end of signal string holes 4 is provided with holding wire sealing device 3.One end of this holding wire is connected with microswitch, and the control unit that the other end and this of this holding wire are used for the device that portable electric igniter terminal position detects is connected, for transmitting the signal that this microswitch sends.
In the present embodiment; the its right end face of this mounting disc is also fixed with spacing ring 5 and sheath centering ring 18; the axis of sheath centering ring 18 and the dead in line of separation sleeve 12; sheath 10 is arranged with outside separation sleeve 12; outer magnetic ring cover 8 is arranged in sheath 10; the tubular that sheath 10 is closed for left end open right-hand member; left end and the sheath centering ring 18 of sheath 10 seal grafting; spacing ring 5 is less than the external diameter of outer magnetic ring cover 8 to the distance of the axis of separation sleeve 12, spacing ring 5 can outer magnetic ring overlap 8 to left movement limit outer magnetic ring cover 8 shift position so that protect this microswitch.
In the present embodiment, this device being used for the detection of portable electric igniter terminal position also comprises device case 2, device case 2 is in three-port structure, first connector of device case 2 upward, second connector of device case 2 downward, 3rd connector of device case 2 towards right side, the left end of separation sleeve 12 with the 3rd of device case 2 the connector is corresponding is tightly connected, the left end of motion bar 17 is plugged in the 3rd connector of device case 2.The left end of motion bar 17 is provided with catch 25, and catch 25 in the vertical direction is curved, and namely catch 25 is arc-like sheet, and the diameter of a circle corresponding to this arc equals the diameter of portable electric igniter 26, as shown in Figure 3.This device being used for the detection of portable electric igniter terminal position also comprises the first O-ring seal 19, screw 20, second O-ring seal 21, nut 22.
Below in conjunction with introduction about the construction, this is used for the course of work of the device that portable electric igniter terminal position detects.Motion bar 17 is provided with baffle ring 25, pressure guide hole 16, Compress Spring 13, internal magnetic ring 11 successively, the effect of Compress Spring 13 promotes motion bar 17 to be moved to the left, and drive its baffle ring 25 and internal magnetic ring 11 synchronizing moving simultaneously, the effect of pressure guide hole 16 makes the pressure of motion bar 17 inner chamber consistent with external pressure, eliminates the vapour lock produced when motion bar 17 moves left and right; The effect of baffle ring 25 contacts with igniter 26, and prevention and restraint bar 17 are moved to the left and rotate; Separation sleeve 12 is provided with successively holding wire sealing device 3, signal string holes 4, sheath centering ring 18, spacing ring 5, microswitch (i.e. measuring cell 6), outer magnetic ring cover 8, outer magnetic ring (i.e. driven member 9), spring righting rod 14, separation sleeve 12 adopts stainless steel without magnetic metal material, exocoel seal isolation in realizing, spacing ring 5 realizes outer magnetic ring cover 8 to position limitation during left movement and the protection to this microswitch; Outer magnetic ring cover 8 is provided with rubber cushion 7, outer magnetic ring successively, and the effect of this outer magnetic ring is by realizing linking with internal magnetic ring 11 magnetic coupling, triggers microswitch 6 when rubber cushion 7 effect is and is moved to the left; Sheath 10 is arranged on sheath centering ring 18, plays effect that is dust-proof, protection.
During work, under the effect of Compress Spring 13, motion bar 17 is moved to the left, and drive baffle ring 25 and internal magnetic ring 11 to be synchronously moved to the left simultaneously, baffle ring 25 contact point firearm 26 outer wall stops mobile, due to internal magnetic ring 11 and outer magnetic ring magnetic coupling, realize outer magnetic ring and internal magnetic ring 11 synchronizing moving, and then drive outer magnetic ring cover 8 and rubber cushion 7 to move, as shown in Figure 1.
When igniter bottom face 24 is carried by baffle ring 25, under the effect of Compress Spring 13, motion bar 17 continues to be moved to the left; and then drive rubber cushion 7 to be moved to the left; trigger this microswitch action, send warning and stopping signal in time, now can close head valve 23.
This device being used for the detection of portable electric igniter terminal position promotes motion bar and baffle ring by Compress Spring; and through magnetic seal interlock, outer magnetic ring cover is synchronized with the movement; trigger microswitch action; send alarm signal or shutdown; realize the automatic detection that head valve is crossed in igniter bottom; improve reliability and the operating efficiency of field operation, reduce accident risk.
The above, be only specific embodiments of the invention, can not limit the scope that invention implements with it, so the displacement of its equivalent assemblies, or the equivalent variations done according to scope of patent protection of the present invention and modification, all still should belong to the category that this patent is contained.In addition, the technical characteristic in the present invention and all can using by independent assortment between technical characteristic, between technical characteristic and technical scheme, between technical scheme and technical scheme.
Claims (11)
1. the device detected for portable electric igniter terminal position, it is characterized in that, the described device for portable electric igniter terminal position detection comprises separation sleeve (12) and motion bar (17), separation sleeve (12) is sheathed on motion bar (17) outward, the axis of motion bar (17) is arranged in the horizontal direction, the right-hand member of separation sleeve (12) is closed, the elastomeric element that can promote motion bar (17) and be moved to the left is provided with between motion bar (17) and separation sleeve (12), the driven member (9) that together can be moved to the left with motion bar (17) is provided with outside separation sleeve (12), the described device for portable electric igniter terminal position detection also comprises the measuring cell (6) for detecting driven member (9) position.
2. the device detected for portable electric igniter terminal position according to claim 1, it is characterized in that, this elastomeric element is Compress Spring (13), the two ends of Compress Spring (13) are connected with separation sleeve (12) and motion bar (17) respectively, are provided with the motion bar inner chamber (15) for installing Compress Spring (13) in the right side of motion bar (17).
3. the device detected for portable electric igniter terminal position according to claim 2, it is characterized in that, spring righting rod (14) is arranged with in motion bar inner chamber (15), Compress Spring (13) is set on spring righting rod (14) outward, the right-hand member of spring righting rod (14) and the right-hand member of separation sleeve (12) are connected and fixed, be provided with in motion bar (17) be communicated with motion bar (17) outward with the pressure guide hole (16) in motion bar inner chamber (15).
4. the device detected for portable electric igniter terminal position according to claim 1, it is characterized in that, be arranged with internal magnetic ring (11) outside motion bar (17), motion bar (17) is also provided with the annular projection for fixing internal magnetic ring (11) outward.
5. the device detected for portable electric igniter terminal position according to claim 4, it is characterized in that, driven member (9) is for being set in separation sleeve (12) outer magnetic ring outward, the position of this outer magnetic ring is corresponding with the position of internal magnetic ring (11), the material of separation sleeve (12) is without magnetic metal material, and internal magnetic ring (11) and this outer magnetic ring are attracted each other.
6. the device detected for portable electric igniter terminal position according to claim 5, it is characterized in that, outer magnetic ring cover (8) is arranged with outside driven member (9), outer magnetic ring cover (8) is tubular structure, outer magnetic ring cover (8) is containing annular groove, driven member (9) is arranged in this annular groove, and the left end of outer magnetic ring cover (8) is provided with block rubber cushion (7).
7. the device detected for portable electric igniter terminal position according to claim 6, it is characterized in that, the left end of separation sleeve (12) is provided with the mounting disc of annular, measuring cell (6) is for being arranged on the microswitch of its right end face of this mounting disc, along the axis direction of motion bar (17), the position of this microswitch is corresponding with the position of rubber cushion (7).
8. the device detected for portable electric igniter terminal position according to claim 7, it is characterized in that, signal string holes (4) is provided with in this mounting disc, one end of signal string holes (4) is connected with this microswitch, the other end of signal string holes (4) is arranged on the outward flange of this mounting disc, signal string holes is provided with the holding wire be connected with this microswitch in (4), and the other end of signal string holes (4) is provided with holding wire sealing device (3).
9. the device detected for portable electric igniter terminal position according to claim 7, it is characterized in that, the its right end face of this mounting disc is also fixed with spacing ring (5) and sheath centering ring (18), the axis of sheath centering ring (18) and the dead in line of separation sleeve (12), sheath (10) is arranged with outside separation sleeve (12), outer magnetic ring cover (8) is arranged in sheath (10), the tubular that sheath (10) is closed for left end open right-hand member, left end and the sheath centering ring (18) of sheath (10) seal grafting, spacing ring (5) is less than the external diameter of outer magnetic ring cover (8) to the distance of the axis of separation sleeve (12), spacing ring (5) can protect this microswitch at outer magnetic ring cover (8) to the shift position of left movement limit outer magnetic ring cover (8).
10. the device detected for portable electric igniter terminal position according to claim 1, it is characterized in that, this device being used for the detection of portable electric igniter terminal position also comprises device case (2), device case (2) is in three-port structure, first connector of device case (2) upward, second connector of device case (2) downward, 3rd connector of device case (2) is towards right side, the left end of separation sleeve (12) with the 3rd of device case (2) connector is corresponding is tightly connected, the left end of motion bar (17) is plugged in the 3rd connector of device case (2).
11. devices detected for portable electric igniter terminal position according to claim 1, it is characterized in that, the left end of motion bar (17) is provided with catch (25), catch (25) in the vertical direction is curved, and the diameter of a circle corresponding to this arc equals the diameter of portable electric igniter (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510887737.4A CN105443115B (en) | 2015-12-07 | 2015-12-07 | Device for detecting tail end position of mobile electric igniter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510887737.4A CN105443115B (en) | 2015-12-07 | 2015-12-07 | Device for detecting tail end position of mobile electric igniter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105443115A true CN105443115A (en) | 2016-03-30 |
| CN105443115B CN105443115B (en) | 2018-06-01 |
Family
ID=55553697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510887737.4A Active CN105443115B (en) | 2015-12-07 | 2015-12-07 | Device for detecting tail end position of mobile electric igniter |
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| Country | Link |
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| CN (1) | CN105443115B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2040757U (en) * | 1988-04-14 | 1989-07-12 | 刘忠宪 | Intelligence type gas-burning water heater |
| CN200939498Y (en) * | 2006-08-04 | 2007-08-29 | 王挺 | Casting blank position detector |
| CN202083411U (en) * | 2011-06-22 | 2011-12-21 | 长沙中联重工科技发展股份有限公司 | Mechanism retraction detection device |
| CN104075650A (en) * | 2013-03-29 | 2014-10-01 | 浙江天煌科技实业有限公司 | Workpiece position detection device |
| CN104196509A (en) * | 2014-08-29 | 2014-12-10 | 中国石油天然气股份有限公司 | Fireflood mobile high-temperature electric ignition process tubular column |
| CN204627576U (en) * | 2015-02-28 | 2015-09-09 | 中国石油天然气股份有限公司 | Fire flooding mobile layered electric ignition and monitoring process pipe column |
| CN205297556U (en) * | 2015-12-07 | 2016-06-08 | 中国石油天然气股份有限公司 | Device for detecting tail end position of mobile electric igniter |
-
2015
- 2015-12-07 CN CN201510887737.4A patent/CN105443115B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2040757U (en) * | 1988-04-14 | 1989-07-12 | 刘忠宪 | Intelligence type gas-burning water heater |
| CN200939498Y (en) * | 2006-08-04 | 2007-08-29 | 王挺 | Casting blank position detector |
| CN202083411U (en) * | 2011-06-22 | 2011-12-21 | 长沙中联重工科技发展股份有限公司 | Mechanism retraction detection device |
| CN104075650A (en) * | 2013-03-29 | 2014-10-01 | 浙江天煌科技实业有限公司 | Workpiece position detection device |
| CN104196509A (en) * | 2014-08-29 | 2014-12-10 | 中国石油天然气股份有限公司 | Fireflood mobile high-temperature electric ignition process tubular column |
| CN204627576U (en) * | 2015-02-28 | 2015-09-09 | 中国石油天然气股份有限公司 | Fire flooding mobile layered electric ignition and monitoring process pipe column |
| CN205297556U (en) * | 2015-12-07 | 2016-06-08 | 中国石油天然气股份有限公司 | Device for detecting tail end position of mobile electric igniter |
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| Publication number | Publication date |
|---|---|
| CN105443115B (en) | 2018-06-01 |
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