CN205778781U - A kind of pressure waterpower surging injector - Google Patents
A kind of pressure waterpower surging injector Download PDFInfo
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- CN205778781U CN205778781U CN201620493236.8U CN201620493236U CN205778781U CN 205778781 U CN205778781 U CN 205778781U CN 201620493236 U CN201620493236 U CN 201620493236U CN 205778781 U CN205778781 U CN 205778781U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 161
- 238000002347 injection Methods 0.000 claims abstract description 65
- 239000007924 injection Substances 0.000 claims abstract description 65
- 238000001914 filtration Methods 0.000 claims description 18
- 238000004062 sedimentation Methods 0.000 claims description 13
- 238000004659 sterilization and disinfection Methods 0.000 claims description 12
- 238000011282 treatment Methods 0.000 abstract description 37
- 238000000034 method Methods 0.000 abstract description 28
- 230000008569 process Effects 0.000 abstract description 26
- 238000011221 initial treatment Methods 0.000 abstract description 23
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 238000011049 filling Methods 0.000 abstract description 5
- 230000009467 reduction Effects 0.000 abstract description 4
- 230000007797 corrosion Effects 0.000 description 29
- 238000005260 corrosion Methods 0.000 description 29
- 238000005516 engineering process Methods 0.000 description 12
- 238000006243 chemical reaction Methods 0.000 description 6
- 239000003755 preservative agent Substances 0.000 description 5
- 230000002335 preservative effect Effects 0.000 description 5
- 239000012530 fluid Substances 0.000 description 4
- 239000003129 oil well Substances 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 239000010865 sewage Substances 0.000 description 4
- 230000006872 improvement Effects 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000006056 electrooxidation reaction Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 239000008398 formation water Substances 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 230000002045 lasting effect Effects 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000001580 bacterial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004210 cathodic protection Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 239000013028 medium composition Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Prevention Of Electric Corrosion (AREA)
Abstract
This utility model discloses a kind of pressure waterpower surging injector, the tank body of ring flange and back with water inlet line and water injection pipe it is provided with in the middle part of including, tank body side inwall is arranged at intervals with dividing plate and plugging plate, tank body opposite side inwall is provided with multiple second sacrificial anode, the two ends of sleeve extend through described dividing plate and plugging plate, sleeve is just to described back with water inlet line, an annular space closed is formed between sleeve and tank body, multiple first sacrificial anodes are fixed in described annular space, dividing plate has multiple permeable hole connected with annular space, on one end outer wall of plugging plate, multiple opening connected with annular space is had at sleeve.The process injecting water is being used staged care, pre-anticorrosion is carried out in primary treatment cavity, and in two stage treatment cavity, carry out main anticorrosion, the workload making the sacrificial anode in tank body is substantially reduced, the sacrificial anode in tank body is avoided to occur quickly consuming and frequently changing, the production cost in water filling operation during reduction oil exploitation.
Description
Technical field
This utility model relates to petroleum pipeline corrosion-resistant field, specifically refers to a kind of pressure waterpower surging injector.
Background technology
At present, the etching problem of oil field pipe mainly embodies a concentrated expression of on the production facility in waterflood-transmission line, hot backwater, steam tracing pipeline, High water cut petroleum pipeline and the oil field such as tanks portion, sewage disposal device.But it is as the prolongation of development time; formation pressure declines; elastic exploitation can not meet the requirement of exploitation; for equilibrium oil stressor layer; and also to protection environment; after needing to process the separation water of production fluid, re-injection is to oil reservoir; re-injection process needs the production fluid separation water after the process of substantial amounts of pipelined, and owing to production fluid separation water constituent is complicated, bacterial reproduction is serious; it is also accompanied by fouling in addition to corrosivity is very strong; the pipeline inwall of conveying can be produced serious corrosion, in addition, manage defeated pressure higher; general at about 10MPa, high reaches
30-40MPa, corrosion easily causes pipeline cracking and perforation, and sewage leaks outside, and on the one hand causes large-area water injection well to stop note, affects completing of injection allocation amount.
nullThe method that the interior anticorrosion of process defeated to line pipe and the control of underdeposit corrosion are taked at present is and adds corrosion inhibiter and corrosion inhibiting and descaling agent，But the complexity due to pumped (conveying) medium composition，Manage the polytropy of defeated technique，The corrosion of pipeline can not be effectively controlled，The particularly underdeposit corrosion of pipeline cannot reach to control purpose by adding corrosion inhibiter and corrosion inhibiting and descaling agent with spot corrosion perforation，Pipeline corrosion and corrosion failure、Perforation the most frequently occurs，Production to oil field causes huge economic loss，And SACRIFICIAL ANODE CATHODIC PROTECTION can effectively control production fluid separation water and the return water corrosion to pipeline inwall，But owing to pipeline internal diameter is little，Sacrificial anode cannot be inserted，And in the injecting process，Loss to sacrificial anode is bigger，During the injection water that particularly in water injection well, filling and subsoil water compatibility differ greatly，Need sacrificial anode is frequently changed，Exacerbate the cost of winning of oil well.
Utility model content
The purpose of this utility model is to provide a kind of forces waterpower surging injector, processing to improve in oil well while the corrosion-resistant degree of water injection pipe inwall to injecting water, reduces the production cost in water injection technology.
The purpose of this utility model is achieved through the following technical solutions:
nullA kind of pressure waterpower surging injector，Including water supply well、Filtering tank、Disinfection tank、Electric pump、Tank body，Water supply well is connected with the water inlet end of filtering tank by water pump，The water side of described filtering tank is connected with the water inlet end of disinfection tank by conduit，The water side of disinfection tank is connected with the water inlet of electric pump by conduit，The outlet of electric pump is connected with tank body one end by back with water inlet line，The tank body other end connects water injection pipe，Described tank body side inwall is arranged at intervals with dividing plate and plugging plate，Described tank body opposite side inwall is provided with multiple second sacrificial anode，The two ends of sleeve extend through described dividing plate and plugging plate，Sleeve is just to described back with water inlet line，And between sleeve and tank body, form an annular space closed，Multiple first sacrificial anodes are fixed in described annular space，And on dividing plate, have multiple permeable hole connected with annular space，On one end outer wall of plugging plate, multiple opening connected with annular space is had at described sleeve；Also including the eddy flow valve being arranged in sleeve, described eddy flow valve is concentric with described dividing plate.
In prior art, in water injection technology, water source generally utilizes oil field extracted water, while ensureing the sufficient water yield and formation water compatibility, reduces environmental pollution；But oil field extracted water is containing sewage, and meta-alkalescence, hardness are low, salinity is higher simultaneously, can not be directly injected in water injection well, after but existing water injection technology carries out certain process to oil field extracted water, still can occur corrosion product and substantial amounts of incrustation scale in flood pattern, especially in waterflood-transmission line, water injection pipe often blocks or makes to inject water because of corrosion and cannot arrive predetermined oil reservoir；In this utility model, by filtering tank, disinfection tank and the preservative treatment tank multistep treatment to injecting water, avoid injecting water and bacteria breed, electrochemical corrosion or local corrosion occur in waterflood-transmission line, and utilize external sacrificial anode to react with injecting water, to reduce the extent of corrosion in waterflood-transmission line, it is ensured that effectively carrying out of water injection technology.
And sacrificial anode consumes huge in existing water injection technology, inventor is through the improvement to external sacrificial anode, by to the two stages for the treatment of injecting water, while reducing sacrificial anode extent of deterioration, improve the process rank injecting water, and then realize the pre-front anticorrosion to water injection pipe, reduce corrosion and corrosion failure, the perforation probability of waterflood-transmission line.During use, injecting water and flow in tank body by back with water inlet line, tank interior space is separated into two parts by its median septum and plugging plate, i.e. injects primary treatment cavity and the two stage treatment cavity of water；Enter the injection water in tank body after the shunting of dividing plate and sleeve, it is divided into two-way to circulate in tank body, the first via injects water by annular space after entering after permeable hole, i.e. enter in primary treatment cavity, by with the first sacrificial anode generation chemical reaction after, entered in sleeve by opening again, second tunnel is injected water and is then entered directly in two stage treatment cavity by sleeve, the first injection water after primary treatment enters in two stage treatment cavity with sleeve equally simultaneously, eventually pass with the second sacrificial anode generation chemical reaction after, it is discharged in water injection pipe；Injection water after twice process circulates at water injection pipe, and be substantially reduced with the probability of the tube wall generation chemical reaction of metal material, i.e. reducing the probability that chemical attack occurs on water injection pipe inwall so that in the water injection technology of oil well, the service life of water injection pipe is greatly improved.And the process injecting water is being used staged care, pre-anticorrosion is carried out in primary treatment cavity, and in two stage treatment cavity, carry out main anticorrosion, the workload making the sacrificial anode in tank body is substantially reduced, the sacrificial anode in tank body is avoided to occur quickly consuming and frequently changing, the production cost in water filling operation during reduction oil exploitation.Wherein, the first sacrificial anode in primary treatment cavity consumes slower, and the second sacrificial anode in two stage treatment cavity consumes very fast, when sacrificial anode is replaced, the middle part of tank body is provided with ring flange, can facilitate and the second sacrificial anode is carried out quick-replaceable, to maintain in tank body the lasting process injecting water, and in sleeve, it is provided with eddy flow valve, avoiding enter into sleeve and on the premise of the injection water reflux of primary treatment, can be according to injecting discharge and the concrete condition of flow velocity, the circulation of water is injected in controlling tank body, prevent the second sacrificial anode load in two stage treatment cavity excessive, in the process injecting water thoroughly not being caused water injection pipe in avoiding tank body, corrosion occurs, the generation of the phenomenons such as fouling.
The internal diameter of described sleeve account for described tank body internal diameter 13 ~ 12.In tank body, the process injecting water is divided into two parts, it is auxiliary with primary treatment cavity, two stage treatment cavity is main, and the aperture of permeable hole and opening is less in processing process chambers, the injection discharge i.e. processed in primary treatment cavity is relatively small, and major part enters into the injection water in tank body in sleeve flows into two stage treatment cavity, the internal diameter of sleeve is set to described tank body internal diameter 13 ~ 12, i.e. ensure in sleeve, injection water and the injection water without any process after primary treatment enter in two stage treatment cavity in proper proportions, the second sacrificial anode is made to realize the while of injecting preservative treatment efficiency maximized of water, reduce the consumption of the second sacrificial anode, ensure that the second sacrificial anode in tank body realizes optimal consumption and income ratio.
Described second sacrificial anode along tank body length radially more than described first sacrificial anode along tank body length radially.The layout of the first sacrificial anode is limited by the annular space space between sleeve and inner tank wall, simultaneously to flow through primary treatment cavity bigger with the injection discharge difference in two stage treatment cavity, therefore, the core of the second sacrificial anode is arranged on the position closer to tank body axis, make the second sacrificial anode more abundant with contacting of injection water, to realize the treatment effeciency maximization of the second sacrificial anode.
Also including that sedimentation tank, described sedimentation tank are tube settler, and water delivery side of pump connects with the water inlet end of sedimentation tank, the water side of sedimentation tank connects with the water inlet end of filtering tank.Select tube settler that the injection water in water supply well is carried out primary filter, utilize the principle of laminar flow to improve the treatment effeciency of sedimentation tank, the distance of granule sedimentation is shortened while increasing desilting area, oarse-grained floating thing and impurity are filtered, to alleviate the workload in filtering tank, reduce the cleaning frequency of filtering tank simultaneously.
This utility model compared with prior art, has such advantages as and beneficial effect:
1, this utility model is using staged care to the process injecting water, pre-anticorrosion is carried out in primary treatment cavity, and in two stage treatment cavity, carry out main anticorrosion, the workload making the sacrificial anode in tank body is substantially reduced, the sacrificial anode in tank body is avoided to occur quickly consuming and frequently changing, the production cost in water filling operation during reduction oil exploitation；
2, this utility model is in sleeve, injection water and the injection water without any process after primary treatment enter in two stage treatment cavity in proper proportions, the second sacrificial anode is made to realize the while of injecting preservative treatment efficiency maximized of water, reduce the consumption of the second sacrificial anode, it is ensured that the second sacrificial anode in tank body realizes optimal consumption and income ratio；
3, the core of the second sacrificial anode is arranged on the position closer to tank body axis by this utility model so that the second sacrificial anode is more abundant with contacting of injection water, to realize the treatment effeciency maximization of the second sacrificial anode.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing being further appreciated by this utility model embodiment, constitutes the part of the application, is not intended that the restriction to this utility model embodiment.In the accompanying drawings:
Fig. 1 is this utility model structural representation；
Fig. 2 is the structural representation of tank body.
Labelling and corresponding parts title in accompanying drawing:
1-back with water inlet line, 2-permeable hole, 3-dividing plate, 4-sleeve, 5-the first sacrificial anode, 6-tank body, 7-opening, 8-plugging plate, 9-the second sacrificial anode, 10-water injection pipe, 11-ring flange, 12-eddy flow valve, 13-water supply well, 14-sedimentation tank, 15-filtering tank, 16-disinfection tank, 17-electric pump.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, exemplary embodiment of the present utility model and explanation thereof are only used for explaining this utility model, are not intended as restriction of the present utility model.
Embodiment 1
nullAs depicted in figs. 1 and 2，The present embodiment includes water supply well 13、Filtering tank 15、Disinfection tank 16、Electric pump 16、Tank body 6，Water supply well 13 is connected with the water inlet end of filtering tank 15 by water pump，The water side of described filtering tank 15 is connected with the water inlet end of disinfection tank 16 by conduit，The water side of disinfection tank 16 is connected with the water inlet of electric pump 17 by conduit，The outlet of electric pump 17 is connected with tank body 6 one end by back with water inlet line 1，Tank body 6 other end connects water injection pipe 10，Described tank body 6 side inwall is arranged at intervals with dividing plate 3 and plugging plate 8，Described tank body 6 opposite side inwall is provided with multiple second sacrificial anode 9，The two ends of sleeve 4 extend through described dividing plate 3 and plugging plate 8，Sleeve 4 is just to described back with water inlet line 1，And between sleeve 4 and tank body 6, form an annular space closed，Multiple first sacrificial anodes 5 are fixed in described annular space，And on dividing plate 3, have multiple permeable hole 2 connected with annular space，On one end outer wall of plugging plate 8, multiple opening 7 connected with annular space is had at described sleeve 4；Also including the eddy flow valve 12 being arranged in sleeve 4, described eddy flow valve 12 is concentric with described dividing plate 3.
In prior art, in water injection technology, water source generally utilizes oil field extracted water, while ensureing the sufficient water yield and formation water compatibility, reduces environmental pollution；But oil field extracted water is containing sewage, and meta-alkalescence, hardness are low, salinity is higher simultaneously, can not be directly injected in water injection well, after but existing water injection technology carries out certain process to oil field extracted water, still can occur corrosion product and substantial amounts of incrustation scale in flood pattern, especially in waterflood-transmission line, water injection pipe 10 often blocks or makes to inject water because of corrosion and cannot arrive predetermined oil reservoir；In this utility model, by filtering tank 14, disinfection tank 15 and the preservative treatment tank multistep treatment to injecting water, avoid injecting water and bacteria breed, electrochemical corrosion or local corrosion occur in waterflood-transmission line, and utilize external sacrificial anode to react with injecting water, to reduce the extent of corrosion in waterflood-transmission line, it is ensured that effectively carrying out of water injection technology.
Sacrificial anode consumes huge in existing water injection technology, inventor is through the improvement to external sacrificial anode, by to the two stages for the treatment of injecting water, while reducing sacrificial anode extent of deterioration, improve the process rank injecting water, and then realize the pre-front anticorrosion to water injection pipe 10, reduce corrosion and corrosion failure, the perforation probability of water injection pipe 10 line.During use, injecting water and flow in tank body 6 by back with water inlet line 1, tank body 6 inner space is separated into two parts with plugging plate 8 by its median septum 3, i.e. injects primary treatment cavity and the two stage treatment cavity of water；Enter the injection water in tank body 6 after the shunting of dividing plate 3 and sleeve 4, it is divided into two-way to circulate in tank body 6, the first via injects water by annular space after entering after permeable hole 2, i.e. enter in primary treatment cavity, after there is chemical reaction with the first sacrificial anode 5, entered in sleeve 4 by opening 7 again, second tunnel is injected water and is then entered directly in two stage treatment cavity by sleeve 4, the first injection water after primary treatment enters in two stage treatment cavity with sleeve 4 equally simultaneously, eventually pass after there is chemical reaction with the second sacrificial anode 9, it is discharged in water injection pipe 10；Injection water after twice process circulates at water injection pipe 10, and be substantially reduced with the probability of the tube wall generation chemical reaction of metal material, i.e. reducing the probability that chemical attack occurs on water injection pipe 10 inwall so that in the water injection technology of oil well, the service life of water injection pipe 10 is greatly improved.And the process injecting water is being used staged care, pre-anticorrosion is carried out in primary treatment cavity, and in two stage treatment cavity, carry out main anticorrosion, the workload making the sacrificial anode in tank body 6 is substantially reduced, the sacrificial anode in tank body 6 is avoided to occur quickly consuming and frequently changing, the production cost in water filling operation during reduction oil exploitation.Wherein, the first sacrificial anode 5 in primary treatment cavity consumes slower, and the second sacrificial anode 9 in two stage treatment cavity consumes comparatively fast, when sacrificial anode is replaced, the middle part of tank body 6 is provided with ring flange 11, can facilitate and the second sacrificial anode 9 carried out quick-replaceable, to maintain the interior lasting process to injecting water of tank body 6, and in sleeve 4, it is provided with eddy flow valve 12, avoiding enter into sleeve 4 and on the premise of the injection water reflux of primary treatment, can be according to injecting discharge and the concrete condition of flow velocity, the circulation of water is injected in controlling tank body 4, prevent the second sacrificial anode 9 load in two stage treatment cavity excessive, in the process injecting water thoroughly not being caused water injection pipe 10 in avoiding tank body 6, corrosion occurs, the generation of the phenomenons such as fouling.
As preferably, the internal diameter of described sleeve 4 account for described tank body 6 internal diameter 13 ~ 12.In tank body 6, the process injecting water is divided into two parts, it is auxiliary with primary treatment cavity, two stage treatment cavity is main, and the aperture of permeable hole 2 and opening 7 is less in processing process chambers, the injection discharge i.e. processed in primary treatment cavity is relatively small, and major part enters into the injection water in tank body 6 in sleeve 4 flows into two stage treatment cavity, the internal diameter of sleeve 4 is set to described tank body 6 internal diameter 13 ~ 12, i.e. ensure in sleeve 4, injection water and the injection water without any process after primary treatment enter in two stage treatment cavity in proper proportions, the second sacrificial anode 9 is made to realize the while of injecting preservative treatment efficiency maximized of water, reduce the consumption of the second sacrificial anode 9, ensure that the second sacrificial anode 9 in tank body 6 realizes optimal consumption and income ratio.
Wherein, the second sacrificial anode 9 in the present embodiment along tank body 6 length radially more than described first sacrificial anode 5 along tank body 6 length radially.The layout of the first sacrificial anode 5 is limited by the annular space space between sleeve 4 and tank body 6 inwall, simultaneously to flow through primary treatment cavity bigger with the injection discharge difference in two stage treatment cavity, therefore, the core of the second sacrificial anode 9 is arranged on the position closer to tank body 6 axis, make the second sacrificial anode 9 more abundant with contacting of injection water, to realize the treatment effeciency maximization of the second sacrificial anode 9.
As preferably, select tube settler that the injection water in water supply well 13 is carried out primary filter, utilize the principle of laminar flow to improve the treatment effeciency of sedimentation tank 14, the distance of granule sedimentation is shortened while increasing desilting area, oarse-grained floating thing and impurity are filtered, to alleviate the workload in filtering tank 15, reduce the cleaning frequency of filtering tank 15 simultaneously.
Above-described detailed description of the invention; the purpose of this utility model, technical scheme and beneficial effect are further described; it is it should be understood that; the foregoing is only detailed description of the invention of the present utility model; it is not used to limit protection domain of the present utility model; all within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. done, within should be included in protection domain of the present utility model.
Claims (4)
- null1. force waterpower surging injector for one kind，It is characterized in that: include water supply well (13)、Filtering tank (15)、Disinfection tank (16)、Electric pump (17)、Tank body (6)，Water supply well (13) is connected with the water inlet end of filtering tank (15) by water pump，The water side of described filtering tank (15) is connected with the water inlet end of disinfection tank (16) by conduit，The water side of disinfection tank (16) is connected with the water inlet of electric pump (17) by conduit，The outlet of electric pump (17) is connected with tank body (6) one end by back with water inlet line (1)，Tank body (6) other end connects water injection pipe (10)，Described tank body (6) side inwall is arranged at intervals with dividing plate (3) and plugging plate (8)，Described tank body (6) opposite side inwall is provided with multiple second sacrificial anode (9)，The two ends of sleeve (4) extend through described dividing plate (3) and plugging plate (8)，Sleeve (4) is just to described back with water inlet line (1)，And between sleeve (4) and tank body (6), form an annular space closed，Multiple first sacrificial anodes (5) are fixed in described annular space，And on dividing plate (3), have multiple permeable hole (2) connected with annular space，On one end outer wall of plugging plate (8), multiple opening (7) connected with annular space is had at described sleeve (4)；Also including the eddy flow valve (12) being arranged in sleeve (4), described eddy flow valve (12) is concentric with described dividing plate (3).
- A kind of pressure waterpower surging injector the most according to claim 1, it is characterised in that: the internal diameter of described sleeve (4) accounts for 13 ~ 12 of described tank body (6) internal diameter.
- The most according to claim 1 a kind of force waterpower surging injector, it is characterised in that: described second sacrificial anode (9) along tank body (6) length radially more than described first sacrificial anode (5) along tank body (6) length radially.
- A kind of pressure waterpower surging injector the most according to claim 1, it is characterized in that: also include sedimentation tank (14), described sedimentation tank (14) is tube settler, and water delivery side of pump connects with the water inlet end of sedimentation tank (14), the water side of sedimentation tank (14) connects with the water inlet end of filtering tank (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620493236.8U CN205778781U (en) | 2016-05-27 | 2016-05-27 | A kind of pressure waterpower surging injector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620493236.8U CN205778781U (en) | 2016-05-27 | 2016-05-27 | A kind of pressure waterpower surging injector |
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| Publication Number | Publication Date |
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| CN205778781U true CN205778781U (en) | 2016-12-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105888632A (en) * | 2016-05-27 | 2016-08-24 | 成都北方石油勘探开发技术有限公司 | Oil-well injector |
-
2016
- 2016-05-27 CN CN201620493236.8U patent/CN205778781U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105888632A (en) * | 2016-05-27 | 2016-08-24 | 成都北方石油勘探开发技术有限公司 | Oil-well injector |
| CN105888632B (en) * | 2016-05-27 | 2019-03-12 | 成都北方石油勘探开发技术有限公司 | A kind of flushing device |
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