CN109209344A - A kind of water injection well centering type corrosion monitor - Google Patents
A kind of water injection well centering type corrosion monitor Download PDFInfo
- Publication number
- CN109209344A CN109209344A CN201811074482.XA CN201811074482A CN109209344A CN 109209344 A CN109209344 A CN 109209344A CN 201811074482 A CN201811074482 A CN 201811074482A CN 109209344 A CN109209344 A CN 109209344A
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- water injection
- injection well
- monitor
- guide way
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 41
- 238000005260 corrosion Methods 0.000 title claims abstract description 36
- 230000007797 corrosion Effects 0.000 title claims abstract description 36
- 238000002347 injection Methods 0.000 title claims abstract description 36
- 239000007924 injection Substances 0.000 title claims abstract description 36
- 238000012544 monitoring process Methods 0.000 claims abstract description 46
- 239000002184 metal Substances 0.000 claims abstract description 40
- 229910052751 metal Inorganic materials 0.000 claims abstract description 40
- 238000007789 sealing Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 125000006850 spacer group Chemical group 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 238000004891 communication Methods 0.000 abstract description 6
- 238000012806 monitoring device Methods 0.000 abstract description 5
- 230000002421 anti-septic effect Effects 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 description 16
- 238000000034 method Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000000007 visual effect Effects 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
- E21B47/001—Survey of boreholes or wells for underwater installation
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- 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)
- Examining Or Testing Airtightness (AREA)
Abstract
The present invention provides a kind of water injection well centering type corrosion monitors, including monitor and monitoring core, monitoring core to be put into the eccentric locating slot of monitor by fisher；Two groups of Demountable metallic links are arranged at intervals on monitoring core, wherein one group of metal link is in communication with the outside by the first by-pass prot of monitor, another group of metal link is connected to by the second by-pass prot with inner cavity.Monitoring core of the invention puts into and takes out under the action of throw in catcher, monitor core can simultaneously on the outside of monitoring device and inner cavity water body for component to be monitored corrosion condition, so as to come the corrosion resistance and service life that fully understand water injection tool and tubing string, the safety of water injection tool and tubing string is improved with this, and theoretical foundation can be provided after successful implementation of the present invention for the antiseptic property of water injection tool and down-hole string and is laid the foundation for its raising antiseptic property.
Description
Technical field
The invention belongs to oil field downhole tool technical fields, fill more particularly, to a kind of water injection well centering type corrosion monitoring
It sets.
Background technique
Water injection well downhole corrosion never has preferable dynamic monitoring tool.For water injection well, test corrosion at present
The major technique of situation be exactly using will in metal lacing film simulation water disposed within corrode a period of time after according to metal weightlessness
Situation calculates the corrosion condition of water injection well underground, or whether metal lacing film is placed in flood pattern up to standard to monitor water quality
Deng, but these two kinds of methods can not be truly reflected flow velocity of water quality, downhole temperature, pressure and heterogeneous fluid etc. it is a variety of it is comprehensive because
The influence that element corrodes downhole tool, there is no the monitoring methods of energy visual test water injection well downhole corrosion at present.
Summary of the invention
In view of this, the present invention is directed to propose a kind of water injection well centering type corrosion monitor, can facilitate, fast, directly
Corrosion condition under the monitoring water injection well of sight.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
A kind of water injection well centering type corrosion monitor, including monitor and monitoring core, monitoring core are put by fisher
In the eccentric locating slot of monitor；Two groups of Demountable metallic links are arranged at intervals on monitoring core, wherein one group of metal link
It is in communication with the outside by the first by-pass prot of monitor, another group of metal link is connected to by the second by-pass prot with inner cavity.
Further, monitoring core successively includes that fishing rod, pressure cap, cam support seat, supporter and bottom are stifled from front to back, is beaten
The rear end for fishing out bar is arranged in pressure cap, and can move in pressure cap, has screw thread on the outside of pressure cap, passes through spiral shell on the inside of cam support seat
Line is connect with pressure cap, is arranged in cam support seat in cam support seat by torsional spring, the tip of cam is pierced by cam support seat
Outer wall, the rear end of cam support seat and the front end of supporter be connected through a screw thread, the rear end of supporter with bottom is stifled is threadedly coupled.
Further, monitor include the top connection being successively threadedly coupled, upper joint sleeve, main body, lower joint sleeve and under connect
Head, upper joint sleeve have the first cavity, are provided with guide way in the first cavity, the upper end of upper guide way resists under top connection
Portion, the lower end of upper guide way are fixedly connected with the upper end of main body, and eccentric locating slot, lower company are provided in upper guide way bottom side of the wall
Female connector has the second cavity, and lower guide way is fixedly installed in the second cavity, and setting is there are two interval and up and down in main body
Cavity, the respectively first main cavity and the second main cavity, on the eccentric locating slot on the first main cavity and upper guiding body sidewall
Lower correspondence, the second main cavity are connected to the first cavity and the second cavity, and the first main cavity sidewalls are equipped with the to be in communication with the outside
Bypass hole and the second by-pass prot being connected to the second main cavity.
Further, supporter is cylindrical body, and the rear and front end of supporter is provided with groove, pad is provided in groove
Hoop, gasket and metal link, to be provided with gap along direction of axis line, pad hoop is covered by opening gap in the recessed of supporter pad hoop
In slot, gasket passes through the dismountable spacer sleeve of gap being arranged on peripheral wall on pad hoop, and metal link is removably arranged in
Between adjacent pad hoop, the metal link positioned at front end groove is in communication with the outside, positioned at the metal link of rearmost flute and inner cavity
Connection.
Further, pressure spring is provided between fishing rod and pressure cap, the rear end of fishing rod is provided with baffle ring, sets on the inside of pressure cap
It is equipped with stair-stepping limit hole, pressure spring is between limit hole and baffle ring.
Further, sealing ring is additionally provided between cam support seat and pressure cap.
Further, pad hoop and gasket are plastic material.With elasticity, it is easy to open and then covers outer in pad hoop.
Further, lower guide way is arranged in the second cavity by bracket, and bracket upper and lower ends are stuck in main body and connect under
Between head, lower guide way is threadedly coupled by external screw thread with bracket, lower that pin is additionally provided between guide way and bracket, and pin rises
Fixed function.
Further, the upper end of lower guide way is provided with guide surface, and guide surface is inclined-plane.
Further, be provided with the groove of invagination on the periphery wall of the middle part of supporter and cam support seat, invagination it is recessed
Sealing ring is provided in slot.It avoids oily liquid in pipe from acting on upper metal link from counterbore upper section, influences upper metal extension
Ring corrosion test avoids the annulus fluid between oil pipe and casing from entering Lower hangers, influences the examination of Lower hangers corrosivity
It tests.The metal link on top is mainly the liquid contact with casing annulus, and lower metal link mainly connects with oily liquid in pipe
Touching.
Throw in catcher is current commonly used fishing device, usually successively include from top to bottom throw in catcher top connection, overhead cam,
Pulling arm, escort head (fishing head), chamber bag, main body, lower cam, guide grab, overhead cam and lower cam be respectively upper trigger point and
Lower trigger point, escorting head and guide grab under normal circumstances can be located in main body, i.e., do not stretch out main body.After triggering overhead cam, give as security
Head (fishing head) is sent to open, after triggering lower cam, guide grab is opened.When escort head (fishing head) is not switched on, can be hidden in
In chamber bag.
It is connected on water injection well completion tubular column, it, first will be on the supporter that monitor core when needing corrosion condition under monitoring well
The groove at end is sequentially placed pad hoop, gasket, metal link, and the groove of supporter lower end is sequentially placed pad hoop, gasket, metal
Link after placement, the escort head of throw in catcher is connect with the fishing rod of monitoring core with fixing pin, is monitored by throw in catcher band
Core is entered in pit shaft by the first cavity, the second main cavity and the second cavity.Throw in catcher is pulled upwardly, it is convex under throw in catcher
Wheel and overhead cam are triggered, and guide grab opens after triggering, and escort head opens, and guide grab resists the guide surface of lower guide way,
So that throw in catcher is moved to the position opposite with the first main cavity, escort head opens, and escorts head due to passing through fixation with fishing rod
Pin connection, therefore the fishing rod one end for monitoring core can follow escort head to be displaced outwardly, two bottoms are stifled also in the chamber bag of throw in catcher,
In this way, monitoring core just follows throw in catcher to enter the first main cavity when lifting throw in catcher.The cam card of monitoring core is being supervised
In the eccentric locating slot of survey device at reaming, continue above to mention throw in catcher, throw in catcher and monitoring core fixing pin are cut, and monitoring core is fixed
In eccentric locating slot.
The groove of supporter upper end is communicated with the first by-pass prot, and liquid is through the first by-pass prot and flow channels in mineshaft annulus
It acts on metal link, the groove of supporter lower end is communicated with the second by-pass prot, and well liquid within the cartridge is through the second by-pass prot and mistake
Circulation road acts on metal link.
After monitoring core acts on a period of time in pit shaft, tripping in throw in catcher triggers overhead cam, so that fishing head pops up, beats
Fishing head is docked with the fishing rod monitored on core, above mentions throw in catcher and fishing rod is driven to move up, so that torsional spring is driven to rotate, so that
Cam on monitoring core discharges, and monitors core and above mentions the first main cavity and eccentric locating slot for being detached from monitor with throw in catcher, from
And monitor core and be suggested ground, metal link is taken out from monitoring core and carries out Corrosion monitoring, realizes dynamic monitoring water injection well
The purpose of corrosion condition.
Compared with the existing technology, water injection well centering type corrosion monitor of the present invention has the advantage that
Water injection well centering type corrosion monitor of the present invention, monitoring core put into and take under the action of throw in catcher
Out, monitoring core can simultaneously on the outside of monitoring device and inner cavity water body for component to be monitored corrosion condition, it is abundant to come
The corrosion resistance and service life for understanding water injection tool and tubing string, the safety of water injection tool and tubing string, this hair are improved with this
Theoretical foundation can be provided after bright successful implementation for the antiseptic property of water injection tool and down-hole string and improve antiseptic property for it
It lays the foundation.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the front sectional view of water injection well centering type corrosion monitor described in the embodiment of the present invention；
Fig. 2 is the front sectional view of monitor described in the embodiment of the present invention；
Fig. 3 is the front sectional view that core is monitored described in the embodiment of the present invention；
Fig. 4 is the cross-sectional view of gasket described in the embodiment of the present invention；
Fig. 5 is the main view of pad hoop described in the embodiment of the present invention；
Fig. 6 is the cross-sectional view that gasket and metal link described in the embodiment of the present invention match；
Fig. 7 is the main view of throw in catcher described in the embodiment of the present invention.
Description of symbols:
1. monitor；2. monitoring core；101. top connection；102. upper joint sleeve；Guide way on 103.；104 eccentric locating slots；
105. main body；106. the first by-pass prot；107. the second by-pass prot；108. lower joint sleeve；109. bracket；110. lower guide way；
111. lower contact；201. fishing rod；202. pressure cap；203. pressure spring；204. cam support seats；205. torsional spring；206. cam；207.
Pad hoop；208. gasket；209, metal link；210. flow channels；211. supporter；212. first main cavitys；213. second is main
Cavity；215. flow channels；216. bottoms are stifled；301. throw in catcher top connections；302. overhead cam；303. pulling arms；304. escort heads
(fishing head)；305. chamber bags；306. main body；307. lower cam；308. guide grab.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as pair
Limitation of the invention.In addition, term " first ", " second " etc. are used for description purposes only, it is not understood to indicate or imply phase
To importance or implicitly indicate the quantity of indicated technical characteristic.The feature for defining " first ", " second " etc. as a result, can
To explicitly or implicitly include one or more of the features.In the description of the present invention, unless otherwise indicated, " multiple "
It is meant that two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood by concrete condition
Concrete meaning in the present invention.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
As shown in figs. 1-7, a kind of water injection well centering type corrosion monitor, including monitor 1 and monitoring core 2, monitor core 2
It is put into the eccentric locating slot 104 of monitor 1 by fisher；Two groups of Demountable metallics are arranged at intervals on monitoring core 2 to hang
Ring 209, wherein one group of metal link 209 is in communication with the outside by the first by-pass prot 106 of monitor 1, another group of metal link
209 are connected to by the second by-pass prot 107 with inner cavity.
Above-mentioned monitoring core successively includes fishing rod 201, pressure cap 202, cam support seat 204,211 and of supporter from front to back
The rear end at bottom stifled 216, fishing rod 201 is arranged in pressure cap 202, and can move in pressure cap 202, has spiral shell on the outside of pressure cap 202
Line connect on the inside of cam support seat 204 with pressure cap 202 by screw thread, passes through the setting of torsional spring 205 in cam support seat 204 convex
It takes turns in support base 204, the tip of cam 206 is pierced by the outer wall of cam support seat 204, the rear end of cam support seat 204 and support
The front end of body 211 is connected through a screw thread, and the rear end of supporter 211 is threadedly coupled with bottom stifled 216.
Above-mentioned monitor includes the top connection 101 being successively threadedly coupled, upper joint sleeve 102, main body 105, lower joint sleeve 108
With lower contact 111, upper joint sleeve 102 has the first cavity, is provided with guide way 103 in the first cavity, upper guide way 103
Upper end resists the lower part of top connection 101, and the lower end of upper guide way 103 is fixedly connected with the upper end of main body 105, upper guide way 103
Eccentric locating slot 104 is provided in bottom side of the wall, lower joint sleeve 108 has the second cavity, is fixedly installed down in the second cavity
Guide way 110, there are two interval and cavity up and down, the respectively first main cavity 212 and second is main for setting in main body 105
Cavity 213, the first main cavity 212 is corresponding with about 104 eccentric locating slot on upper 103 side wall of guide way, the second main cavity 213
Be connected to the first cavity and the second cavity, the first main 212 side wall of cavity be equipped with the first by-pass prot 106 for being in communication with the outside and
The second by-pass prot 107 being connected to the second main cavity 213.
Above-mentioned supporter 211 is cylindrical body, and the rear and front end of supporter 211 is provided with groove, is provided in groove
Pad hoop 207, gasket 208 and metal link 209, for pad hoop 207 to be provided with gap along direction of axis line, pad hoop 207 passes through opening
Gap covers in the groove of supporter 211, and gasket 208 passes through the dismountable spacer sleeve of gap being arranged on peripheral wall and binds round in pad
On 207, metal link 209 is removably arranged between adjacent pad hoop 207, positioned at front end groove metal link 209 with
External world's connection, the metal link 209 positioned at rearmost flute are connected to inner cavity.
Pressure spring 203 is provided between above-mentioned fishing rod 201 and pressure cap 202, the rear end of fishing rod 201 is provided with baffle ring, pressure
Stair-stepping limit hole is provided on the inside of cap 202, pressure spring 203 is between limit hole and baffle ring.
Sealing ring is additionally provided between above-mentioned cam support seat 204 and pressure cap 202.
Above-mentioned pad hoop 207 and gasket 208 are plastic material.
Above-mentioned lower guide way 110 is arranged in the second cavity by bracket 109, and 109 upper and lower ends of bracket are stuck in main body 105
Between lower contact 111, lower guide way 110 is threadedly coupled by external screw thread with bracket 109, lower guide way 110 and bracket 109 it
Between be additionally provided with pin.
The upper end of above-mentioned lower guide way 110 is provided with guide surface, and guide surface is inclined-plane.
Be provided with the groove of invagination on the middle part of above-mentioned supporter 211 and the periphery wall of cam support seat 204, invagination it is recessed
Sealing ring is provided in slot.
Throw in catcher is current commonly used fishing device, usually from top to bottom successively includes throw in catcher top connection 301, convex
Wheel 302, pulling arm 303, escort head (fishing head) 304, chamber bag 305, main body 306, lower cam 307, guide grab 308, overhead cam
302 and lower cam 307 be respectively upper trigger point and lower trigger point, master can be located at by escorting head 304 and guide grab 308 under normal circumstances
In body 306, i.e., main body 306 is not stretched out.After triggering overhead cam 302, escort head 304 (fishing head) is opened, when triggering lower cam
After 307, guide grab 308 is opened.When escort head 304 (fishing head) is not switched on, can be hidden in chamber bag 305.
The application method of monitoring device:
It is connected on water injection well completion tubular column, when needing corrosion condition under monitoring well, will first monitor the supporter of core 2
The groove of 211 upper ends is sequentially placed pad hoop 207, gasket 208, metal link 209, and the groove of 211 lower end of supporter is successively
Pad hoop 207, gasket 208, metal link 209 are placed, after placement, by the salvaging of throw in catcher escorted head 304 and monitor core 2
Bar 201 is connected with fixing pin, is entered by throw in catcher band monitoring core 2 by the first cavity, the second main cavity 213 and the second cavity
Into pit shaft.Throw in catcher is pulled upwardly, the lower cam 307 and overhead cam 302 of throw in catcher are triggered, guide grab after triggering
308 open, and escort head 304 opens, and guide grab 308 resists the guide surface of lower guide way 110, so that throw in catcher is moved to and first
The opposite position of main cavity 212, escort head 304 open, escort head 304 due to being connected with fishing rod 201 by fixing pin, because
201 one end of fishing rod of this monitoring core 2 can follow escort head 304 to be displaced outwardly, and bottom stifled 216 is also in the chamber bag 305 of throw in catcher
It is interior, in this way, monitoring core 2 just follows throw in catcher to enter the first main cavity 212 when lifting throw in catcher.Monitor the convex of core 2
Wheel 206 is stuck in the eccentric locating slot 104 of monitor at reaming, continues above to mention throw in catcher, throw in catcher and monitoring 2 fixing pin of core
It cuts, monitoring core 2 is fixed in eccentric locating slot 104.
The groove of 211 upper end of supporter is communicated with the first by-pass prot 106, and liquid is through the first by-pass prot 106 in mineshaft annulus
It is acted on metal link 209 with flow channels 215, the groove of 211 lower end of supporter is communicated with the second by-pass prot 107, pit shaft
Interior liquid acts on metal link 209 through the second by-pass prot 107 and flow channels 215.Can monitor simultaneously in annular space liquid and
Influence of the oily liquid in pipe to metal link 209.
After brill opens a well, it is fixed on of the cylinder on stratum with glue, is called casing.Packer, the various wells of injection well downhole flow regulator
What lower tool connected together is oil pipe and cylinder.Liquid is mainly injected into stratum, oil pipe and casing from oil pipe
Between be called oil jacket annulus, abbreviation annular space, and have liquid.
The flow velocity of liquid, pressure or even water quality are all different in oily liquid in pipe and annular space, can thus be examined simultaneously
The influence of annular space and oily liquid in pipe to monitoring device is surveyed, because monitoring device is also round bobbin, while subject annular space
The effect of liquid and oily liquid in pipe.
After monitoring core 2 acts on a period of time in pit shaft, tripping in throw in catcher triggers overhead cam 302, so that fishing head 304
Pop-up, fishing head 304 are docked with the fishing rod 201 on monitoring core 2, above mention throw in catcher and fishing rod 201 is driven to move up, thus
It drives torsional spring 205 to rotate, so that the cam 206 on monitoring core 2 discharges, monitors core 2 and above mention disengaging monitor with throw in catcher
First main cavity 212 and eccentric locating slot 104 take metal link 209 so that monitoring core 2 is suggested ground from monitoring core 2
Corrosion monitoring is carried out out, realizes the purpose of dynamic monitoring water injection well corrosion condition.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of water injection well centering type corrosion monitor, it is characterised in that: including monitor (1) and monitoring core (2), monitor core
(2) it is put into the eccentric locating slot (104) of monitor (1) by fisher；Monitoring core (2) on be arranged at intervals with two groups it is detachable
Metal link (209), wherein one group of metal link (209) by first by-pass prot (106) of monitor (1) and it is extraneous even
Logical, another group of metal link (209) is connected to by the second by-pass prot (107) with inner cavity.
2. water injection well centering type corrosion monitor according to claim 1, it is characterised in that: monitoring core from front to back according to
Secondary includes that (216) are blocked up at fishing rod (201), pressure cap (202), cam support seat (204), supporter (211) and bottom, fishing rod
(201) rear end setting can move in pressure cap (202) in pressure cap (202), have screw thread, cam on the outside of pressure cap (202)
It is connect by screw thread with pressure cap (202) on the inside of support base (204), is arranged by torsional spring (205) convex in cam support seat (204)
It takes turns in support base (204), the tip of cam (206) is pierced by the outer wall of cam support seat (204), after cam support seat (204)
It holds and is connected through a screw thread with the front end of supporter (211), the rear end of supporter (211) is blocked up (216) bottom of with and is threadedly coupled.
3. water injection well centering type corrosion monitor according to claim 1, it is characterised in that: monitor includes successively spiral shell
Top connection (101), upper joint sleeve (102), main body (105), lower joint sleeve (108) and the lower contact (111) of line connection, upper connection
Covering (102) has the first cavity, is provided with guide way (103) in the first cavity, the upper end of upper guide way (103), which resists, to be connect
The lower part of head (101), the lower end of upper guide way (103) are fixedly connected with the upper end of main body (105), upper guide way (103) lower end
It is provided on side wall eccentric locating slot (104), lower joint sleeve (108) has the second cavity, is fixedly installed down in the second cavity
Guide way (110), in main body (105) setting there are two interval and cavity up and down, the respectively first main cavity (212) and
Second main cavity (213), the first main cavity (212) are right up and down with the eccentric locating slot (104) on upper guide way (103) side wall
It answers, the second main cavity (213) is connected to the first cavity and the second cavity, and the first main cavity (212) side wall is equipped with the external world even
Logical the first by-pass prot (106) and the second by-pass prot (107) being connected to the second main cavity (213).
4. water injection well centering type corrosion monitor according to claim 2, it is characterised in that: supporter (211) is circle
Cylinder, the rear and front end of supporter (211) are provided with groove, and pad hoop (207), gasket (208) and gold are provided in groove
Belong to link (209), pad hoop (207) is that gap is provided with along direction of axis line, and pad hoop (207) is covered by opening gap in supporter
(211) in groove, gasket (208) passes through the dismountable spacer sleeve of gap being arranged on peripheral wall on pad hoop (207), metal
Link (209) is removably arranged between adjacent pad hoop (207), metal link (209) and the external world positioned at front end groove
Connection, the metal link (209) positioned at rearmost flute are connected to inner cavity.
5. water injection well centering type corrosion monitor according to claim 2, it is characterised in that: fishing rod (201) and pressure
It is provided between cap (202) pressure spring (203), the rear end of fishing rod (201) is provided with baffle ring, is provided with rank on the inside of pressure cap (202)
The limit hole of scalariform, pressure spring (203) is between limit hole and baffle ring.
6. water injection well centering type corrosion monitor according to claim 2, it is characterised in that: cam support seat (204)
Sealing ring is additionally provided between pressure cap (202).
7. water injection well centering type corrosion monitor according to claim 4, it is characterised in that: pad hoop (207) and gasket
It (208) is plastic material.
8. water injection well centering type corrosion monitor according to claim 3, it is characterised in that: lower guide way (110) is logical
Bracket (109) to be crossed to be arranged in the second cavity, bracket (109) upper and lower ends are stuck between main body (105) and lower contact (111),
Lower guide way (110) is threadedly coupled by external screw thread with bracket (109), is also set up between lower guide way (110) and bracket (109)
There is pin.
9. water injection well centering type corrosion monitor according to claim 3, it is characterised in that: lower guide way (110)
Upper end is provided with guide surface, and guide surface is inclined-plane.
10. water injection well centering type corrosion monitor according to claim 2, it is characterised in that: in supporter (211)
It is provided with the groove of invagination on the periphery wall of portion and cam support seat (204), is provided with sealing ring in the groove of invagination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811074482.XA CN109209344B (en) | 2018-09-14 | 2018-09-14 | Eccentric corrosion monitoring device for water injection well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811074482.XA CN109209344B (en) | 2018-09-14 | 2018-09-14 | Eccentric corrosion monitoring device for water injection well |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109209344A true CN109209344A (en) | 2019-01-15 |
| CN109209344B CN109209344B (en) | 2022-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811074482.XA Active CN109209344B (en) | 2018-09-14 | 2018-09-14 | Eccentric corrosion monitoring device for water injection well |
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| Country | Link |
|---|---|
| CN (1) | CN109209344B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN109209344B (en) | 2022-07-08 |
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