CN107313721A - Pumpingh well impressed current method anti-corrosive apparatus - Google Patents
Pumpingh well impressed current method anti-corrosive apparatus Download PDFInfo
- Publication number
- CN107313721A CN107313721A CN201710310430.7A CN201710310430A CN107313721A CN 107313721 A CN107313721 A CN 107313721A CN 201710310430 A CN201710310430 A CN 201710310430A CN 107313721 A CN107313721 A CN 107313721A
- Authority
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- China
- Prior art keywords
- oil
- pipe
- sleeve pipe
- oil pipe
- flowline
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000003129 oil well Substances 0.000 claims abstract description 24
- 238000009413 insulation Methods 0.000 claims abstract description 15
- 239000004020 conductor Substances 0.000 claims description 13
- 230000005611 electricity Effects 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 5
- 239000012212 insulator Substances 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 230000007246 mechanism Effects 0.000 claims description 4
- 238000005086 pumping Methods 0.000 abstract description 8
- 230000008901 benefit Effects 0.000 abstract description 6
- 238000005260 corrosion Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000004210 cathodic protection Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000003260 anti-sepsis Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 235000020681 well water Nutrition 0.000 description 1
- 239000002349 well water Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
Abstract
The present invention relates to the anti-corrosive apparatus on oil field pumping well, more particularly to a kind of pumpingh well impressed current method anti-corrosive apparatus.Including polished rod eye, rod string, flowline leads to, oil pipe, sleeve pipe, oil well pump and dc source, its middle sleeve is arranged in pit shaft, installed on oil pipe after oil well pump in tripping in sleeve pipe, the top of oil pipe is connected with set pipe insulation, the logical bottom of flowline is connected with oil pipe, in rod string tripping in oil pipe, and the piston connection of bottom and oil well pump, the top of rod string is connected through flowline is logical with polished rod eye insulation, multiple non-conductive centralizers are installed at interval on oil pipe, the negative electrode of dc source is connected to flowline and led to, the plus earth of dc source, the tail end of oil pipe is with sleeve pipe by contacting conducting, form closed-loop path.The present invention improves the sucker rod of pumpingh well, oil pipe, oil well pump, sleeve pipe, the service life of downhole tool, improves the economic benefit of oil well.
Description
Technical field
Particularly it is a kind of pumpingh well impressed current method anti-corrosion dress the present invention relates to the anti-corrosive apparatus on oil field pumping well
Put.
Background technology
All be present etching problem in sucker rod, oil pipe, oil well pump, sleeve pipe, the downhole tool of some pumpingh wells, prevent at present
Stating the measure of corrosion has many kinds, but is all to carry out anti-corrosion, such as Patent No. to a kind of its single instrument
201220522703.7, it is entitled《Polyethylene from high pressure process antisepsis oil pipe》Chinese utility model patent, being exactly can only be anti-to oil pipe
Other instruments in well are unable to anti-corrosion by corruption；And for example Patent No. 201410796659.2, entitled《A kind of anticorrosion oil pumping
Bar》Chinese invention patent, be also that can only be unable to anti-corrosion to other instruments in well to pumping rod anti-corrosive；For another example Patent No.
201220650010.6, it is entitled《The long anti-casing corrosion Well-cleaning protection device of tail pipe》Chinese utility model patent, be also only
Anti-corrosion can be unable to other instruments in well to casing tube anti-corrosive.There is limitation in above-mentioned anti-corrosion measure, so, pumpingh well is taken out
Beam hanger, oil pipe, oil well pump, sleeve pipe, downhole tool still have etching problem, cause the sucker rod, oil pipe, oil pumping of pumpingh well
Pump, sleeve pipe, downhole tool service life it is short, it is necessary to often workover treatment, cost for oil production is high, deficiency in economic performance.
The content of the invention
In view of the above-mentioned problems, it is an object of the invention to provide a kind of pumpingh well impressed current method anti-corrosive apparatus, to overcome
Above-mentioned to there is problem, the sucker rod of raising pumpingh well, oil pipe, oil well pump, sleeve pipe, the service life of downhole tool reduce oil pumping
The workover treatment of well, reduces cost for oil production, improves the economic benefit of oil well.
To achieve these goals, the present invention uses following technical scheme：
A kind of pumpingh well impressed current method anti-corrosive apparatus, including polished rod eye, rod string, flowline are logical, oil pipe, sleeve pipe,
Oil well pump and dc source, its middle sleeve are arranged in pit shaft, are installed on the oil pipe after oil well pump in tripping in sleeve pipe, the oil
The top of pipe is connected with described sleeve pipe insulation, and the logical bottom of the flowline is connected with the oil pipe, the rod string tripping in
Oil pipe is interior and bottom is connected with the piston of the oil well pump, and the top of the rod string leads to and hanging rope through the flowline
Device insulation connection, the polished rod eye is connected with oil pumper, and multiple non-conductive centralizers, the direct current are installed in interval on the oil pipe
The negative electrode of power supply is connected to flowline and led to, and the plus earth of dc source, the tail end of the oil pipe is led with sleeve pipe by contacting
It is logical, electricity is transmitted to from the upper end of oil pipe through tail end on sleeve pipe, then the anode formation closed-loop path through the earth with dc source.
The tail end of the oil pipe installs conductor, the outside of the conductor and casing-contact, and the conductor is by oil pipe
The conductance of tail end enters sleeve pipe.
The logical side of the flowline is provided with oil-out, and the oil-out is connected by insulating element with flow line.
The top installation set pipe connection of described sleeve pipe, the oil pipe top connection hanger, the oil pipe it is upper
Portion is suspended in described sleeve pipe attachment means by hanger, and insulation is installed between the hanger and described sleeve pipe attachment means
Cylinder, the logical bottom of the flowline is connected with the hanger.
The side of described sleeve pipe attachment means is provided with valve, and the valve is used for the pressure for controlling sleeve pipe.
Described sleeve pipe attachment means, which are provided with, prevents the antifleeing mechanism of the oil pipe play.
The logical bottom of the flowline is connected by flange with described sleeve pipe attachment means, and the flange is filled with sleeve pipe connection
Insulating element is provided between putting.
The insulating cylinder be pyramidal structure and with the hanger and described sleeve pipe attachment means cone match.
The top of the rod string is connected through sealer with polished rod eye insulation, and the sealer is located at the flowline
Logical top and bottom is connected with the top that the flowline leads to.
Insulator is installed between the top of the rod string and the junction of the polished rod eye, makes rod string not with hanging
Device of restricting is conductive.
Advantages of the present invention and beneficial effect are：The present invention is led to by the way that the negative electrode of dc source is connected into flowline,
After the plus earth of dc source, circuit communication, rod string, oil pipe, sleeve pipe, downhole tool are thus cathodically polarised, and make sucker rod
Post, oil pipe, sleeve pipe obtain complete cathodic protection, so as to prevent rod string, oil pipe, sleeve pipe, downhole tool to be corroded.Cause
This, instant invention overcomes not enough present in the existing aseptic technic used in pumpingh well, can prevent the sucker rod of pumpingh well
Post, oil pipe, sleeve pipe, downhole tool are corroded, and can improve the sucker rod of pumpingh well, oil pipe, oil well pump, sleeve pipe, downhole tool
Service life, reduces the workover treatment of pumpingh well, reduces cost for oil production, improves the economic benefit of oil well.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
In figure：1 is polished rod eye, and 2 be insulator, and 3 be rod string, and 4 be sealer, and 5 is logical for flowline, and 6 be hanger,
7 be insulating cylinder, and 8 be sleeve pipe connection device, and 9 be non-conductive centralizer, and 10 be oil pipe, and 11 be sleeve pipe, and 12 be oil well pump, and 13 be to lead
Electrical equipment, 14 be dc source.
Embodiment
In order that the object, technical solutions and advantages of the present invention are clearer, below in conjunction with the accompanying drawings with specific embodiment pair
The present invention is described in detail.
As shown in figure 1, a kind of pumpingh well impressed current method anti-corrosive apparatus that the present invention is provided, including polished rod eye 1, sucker rod
Post 3, flowline logical 5, oil pipe 10, sleeve pipe 11, oil well pump 12 and dc source 14, its middle sleeve 11 are arranged in pit shaft, oil pipe
Installed on 10 after oil well pump 12 in tripping in sleeve pipe 11, the top of oil pipe 10 be connected with the insulation of sleeve pipe 11, flowline lead to 5 bottom and
Oil pipe 10 is connected, in the tripping in oil pipe 10 of rod string 3 and bottom is connected with the piston of oil well pump 12, and the top of rod string 3 is worn
Cross flowline logical 5 be connected with the insulation of polished rod eye 1, polished rod eye 1 is connected with oil pumper, be spaced that installation is multiple non-conductive to be helped on oil pipe 10
Positive device 9.The negative electrode of dc source 14 is connected on flowline logical 5, the plus earth of dc source 14, the tail end and set of oil pipe 10
Pipe 11 is turned on by contacting, and electricity is transmitted to from the upper end of oil pipe 10 through tail end on sleeve pipe 11, then through the earth and dc source 14
Anode formation closed-loop path.
Between the top of rod string 3 and the junction of polished rod eye 1 install insulator 2, make rod string 3 not with polished rod eye
1 is conductive.The top of rod string 3 be connected through the insulation of sealer 4 and polished rod eye 1, sealer 4 lead to positioned at flowline 5 top,
And bottom is connected with the top of flowline logical 5.
Further, the tail end of oil pipe 10 installs conductor 13, and the outside of conductor 13 is contacted with sleeve pipe 11, conductor 13
The conductance of the tail end of oil pipe 10 is entered into sleeve pipe 11.Conductor 13 uses conductive metal material, and its profile is similar to centralizer, can make oil
Pipe 10 is forcibly turned on conduction with sleeve pipe 11.
The side of flowline logical 5 is provided with oil-out, and oil-out is connected by insulating element with flow line.
The top installation set pipe connection 8 of sleeve pipe 11, the top connection hanger 6 of oil pipe 10, the top of oil pipe 10 leads to
Cross hanger 6 to be suspended on sleeve pipe connection device 8, mounting insulation tube 7 between hanger 6 and sleeve pipe connection device 8, flowline leads to
5 bottom is connected with hanger 6.
The side of sleeve pipe connection device 8 (i.e. the big four of well head) is provided with valve, and valve is used for the pressure for controlling sleeve pipe 11.
In order to prevent the upward play of oil pipe 10, sleeve pipe connection device 8, which is provided with, prevents the antifleeing mechanism of the play of oil pipe 10.
The antifleeing mechanism specifically can be using the jackscrew being arranged on the flange of sleeve pipe connection device 8, and it is compacting that it, which is acted on,
Hanger 6, to prevent the play of hanger 6.
Further, insulating cylinder is pyramidal structure and hanger 6 and sleeve pipe connection device cone match with both sides.
The bottom of flowline logical 5 is connected by flange with sleeve pipe connection device 8, is set between flange and sleeve pipe connection device 8
There is insulating element.
The present invention operation principle be：
Multiple non-conductive centralizers 9 are installed at interval on oil pipe 10, oil pipe 10 is not contacted in addition to conductor 13 with sleeve pipe 11,
The mounting insulation tube 7 between hanger 6 and sleeve pipe connection device 8, makes the top of sleeve pipe 11 and the top of oil pipe 10 and flowline
Logical 5 is non-conductive；Insulator 2 is installed between the top of rod string 3 and the junction of polished rod eye 1, makes rod string 3 not with hanging
Device 1 of restricting is conductive.The negative electrode of dc source 14 is connected on flowline logical 5, the plus earth of dc source 14, the tail end of oil pipe 10
With sleeve pipe 11 by contacting conducting, electricity is transmitted to from the upper end of oil pipe 10 through conductor 13 on sleeve pipe 11, then through the earth with it is straight
Flow the anode formation closed-loop path of power supply 14.The side oil-out connection flow line of flowline logical 5, is connected on flow line
Insulating element, makes electricity be blocked at insulating element, electric current will not flow away along flow line, allow electric current according to the line flows of design
Dynamic, described insulating element is close to the junction with flowline logical 5.
Other downhole tools, such as packer instrument can also be connected on oil pipe 10, the downhole tool of institute's tripping in will not
Make oil pipe 10 conductive with sleeve pipe 11, it is ensured that electric current flows away by the circuit of design.
Most upper one of rod string 3 is referred to as polished rod, its surface relatively light be easy to sealer fitted seal, make the liquid of extraction
Stream can only flow out from the oil-out of the side of flowline logical 5.
The present invention is also suitable for coal bed gas well water pumping gas production.If inclined shaft, the oil pipe 10 of the bottom of oil well pump 12 has necessarily
Length after, the tail end of oil pipe 10 can just be contacted with sleeve pipe 11, avoid the need for install conductor 13.
In summary, the present invention is by the way that the negative electrode of dc source 14 is connected on flowline logical 5 by wire, direct current
After the plus earth in source 14, circuit communication, rod string 3, oil pipe 10, sleeve pipe 11 and downhole tool are thus cathodically polarised, and make oil pumping
Roofbolt 3, oil pipe 10 and sleeve pipe 11 obtain complete cathodic protection, so as to prevent rod string 3, oil pipe 10, sleeve pipe 11 and well
Lower instrument is corroded.Therefore, instant invention overcomes not enough present in the existing aseptic technic used in pumpingh well, it can prevent
Rod string, oil pipe, sleeve pipe, the downhole tool of pumpingh well are corroded, and can improve sucker rod, oil pipe, oil well pump, the set of pumpingh well
Pipe, the service life of downhole tool, reduce the workover treatment of pumpingh well, reduce cost for oil production, improve the economic benefit of oil well.
Embodiments of the present invention are the foregoing is only, are not intended to limit the scope of the present invention.It is all in the present invention
Spirit and principle within any modification, equivalent substitution and improvements, the extension made etc., be all contained in protection scope of the present invention
It is interior.
Claims (10)
1. a kind of pumpingh well impressed current method anti-corrosive apparatus, it is characterised in that including polished rod eye (1), rod string (3), fuel-displaced
Pipe logical (5), oil pipe (10), sleeve pipe (11), oil well pump (12) and dc source (14), its middle sleeve (11) are arranged in pit shaft,
Oil well pump (12) is installed on the oil pipe (10), and tripping in sleeve pipe (11) is interior afterwards, top and the described sleeve pipe (11) of the oil pipe (10)
Insulation connection, the bottom that the flowline leads to (5) is connected with the oil pipe (10), rod string (3) the tripping in oil pipe (10)
Interior and bottom is connected with the piston of the oil well pump (12), and the top of the rod string (3) leads to (5) through the flowline
It is connected with polished rod eye (1) insulation, the polished rod eye (1) is connected with oil pumper, interval installation is multiple on the oil pipe (10) does not lead
Electric centralizer (9), the negative electrode of the dc source (14) is connected to flowline and led on (5), plus earth, the oil pipe (10)
Tail end by contacting conducting, makes the upper end of electric current from oil pipe (10) be transmitted to through tail end on sleeve pipe (11), then pass through with sleeve pipe (11)
The anode formation closed-loop path of the earth and dc source (14).
2. pumpingh well impressed current method anti-corrosive apparatus according to claim 1, it is characterised in that the tail of the oil pipe (10)
Conductor (13) is installed at end, and the outside of the conductor (13) contacts with sleeve pipe (11), and the conductor (13) is by oil pipe (10)
The conductance of tail end enters sleeve pipe (11).
3. pumpingh well impressed current method anti-corrosive apparatus according to claim 1, it is characterised in that the flowline leads to (5)
Side be provided with oil-out, the oil-out is connected by insulating element with flow line.
4. pumpingh well impressed current method anti-corrosive apparatus according to claim 1, it is characterised in that described sleeve pipe (11) it is upper
Portion's installation set pipe connection (8), the top connection hanger (6) of the oil pipe (10), the top of the oil pipe (10) passes through
Hanger (6) is suspended in described sleeve pipe attachment means (8), is pacified between the hanger (6) and described sleeve pipe attachment means (8)
Insulating cylinder (7) is filled, the bottom that the flowline leads to (5) is connected with the hanger (6).
5. pumpingh well impressed current method anti-corrosive apparatus according to claim 4, it is characterised in that described sleeve pipe attachment means
(8) side is provided with valve, and the valve is used for the pressure for controlling sleeve pipe (11).
6. pumpingh well impressed current method anti-corrosive apparatus according to claim 4, it is characterised in that described sleeve pipe attachment means
(8) being provided with prevents the antifleeing mechanism of the oil pipe (10) play.
7. pumpingh well impressed current method anti-corrosive apparatus according to claim 4, it is characterised in that the flowline leads to (5)
Bottom be connected by flange with described sleeve pipe attachment means (8), between the flange and sleeve pipe connection device (8) provided with insulation
Part.
8. pumpingh well impressed current method anti-corrosive apparatus according to claim 4, it is characterised in that the insulating cylinder (7) is
Pyramidal structure and with the hanger (6) and described sleeve pipe attachment means (8) cone match.
9. pumpingh well impressed current method anti-corrosive apparatus according to claim 1, it is characterised in that the rod string (3)
Top be connected through the insulation of sealer (4) and polished rod eye (1), the sealer (4) is upper positioned at the flowline logical (5)
The top that square and bottom leads to (5) with the flowline is connected.
10. pumpingh well impressed current method anti-corrosive apparatus according to claim 1, it is characterised in that the rod string (3)
Top and the polished rod eye (1) junction between install insulator (2), rod string (3) is not led with polished rod eye (1)
Electricity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710310430.7A CN107313721B (en) | 2017-05-04 | 2017-05-04 | External current method anticorrosion device for pumping well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710310430.7A CN107313721B (en) | 2017-05-04 | 2017-05-04 | External current method anticorrosion device for pumping well |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107313721A true CN107313721A (en) | 2017-11-03 |
| CN107313721B CN107313721B (en) | 2024-02-20 |
Family
ID=60184763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710310430.7A Active CN107313721B (en) | 2017-05-04 | 2017-05-04 | External current method anticorrosion device for pumping well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107313721B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112129501A (en) * | 2020-08-28 | 2020-12-25 | 中国石油天然气股份有限公司 | Device and method for predicting service life of sucker rod centralizer |
| CN112695329A (en) * | 2020-11-12 | 2021-04-23 | 中国石油天然气股份有限公司 | Long-acting anode internal corrosion prevention device under oil well pump and corrosion prevention method thereof |
| CN113957444A (en) * | 2021-09-14 | 2022-01-21 | 陕西省建文能源科技有限公司 | Intelligent impressed current anti-corrosion system for oil and gas well |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4164257A (en) * | 1977-12-15 | 1979-08-14 | Atlantic Richfield Company | Internal protection of well casing |
| GB8404207D0 (en) * | 1983-02-23 | 1984-03-21 | Hughes J D | Internal sacrificial anode |
| CN2536600Y (en) * | 2002-05-08 | 2003-02-19 | 大庆开发区东油新技术有限公司 | Corrosionproof protection of watery oil well casings by anodic column strings in adjacent wells |
| RU2227201C2 (en) * | 2002-03-18 | 2004-04-20 | Николаев Николай Михайлович | Method for destroying pipe portion in a well and device realizing said method |
| RU2254400C1 (en) * | 2004-03-03 | 2005-06-20 | ООО НГДУ "Уфанефть" | Device for a cathode protection of the run down-well equipment |
| CA2522559A1 (en) * | 2005-10-07 | 2007-04-07 | Petrosleeve Incorporated | Pipeline cathodic protection connection |
| CN2918446Y (en) * | 2006-05-01 | 2007-07-04 | 许德才 | Oil well and pipeline corrosion protection cathodic protection apparatus |
| CN201010693Y (en) * | 2006-11-04 | 2008-01-23 | 董宝玉 | Oil well anti-corrosion device |
| CN201713579U (en) * | 2010-01-10 | 2011-01-19 | 濮阳市信宇石油机械化工有限公司 | Oil pipe corrosion prevention device utilizing cathodic protection by adopting sacrificial anode |
| CN203685144U (en) * | 2014-02-07 | 2014-07-02 | 刘海生 | Oil well sleeve oil production device |
| CN204251715U (en) * | 2014-12-08 | 2015-04-08 | 新疆坤源石油技术开发有限公司 | Oil tube cathode protector |
| CN105422051A (en) * | 2015-12-10 | 2016-03-23 | 吴明涛 | Oil production process device |
| CN205638328U (en) * | 2016-04-19 | 2016-10-12 | 中国石油天然气股份有限公司 | Well head hangs assembly |
| KR101680798B1 (en) * | 2016-05-20 | 2016-11-29 | (재)한국건설생활환경시험연구원 | System of impressed current cathodic protection for realtime monitoring corrosion of coldest place pipeline, and method for the same |
| US20170059737A1 (en) * | 2014-02-13 | 2017-03-02 | Groundmetrics, Inc. | System and Method for Mapping Deep Anomalous Zones of Electrical Resistivity |
| CN206972203U (en) * | 2017-05-04 | 2018-02-06 | 中石油煤层气有限责任公司 | Pumpingh well impressed current method anti-corrosive apparatus |
-
2017
- 2017-05-04 CN CN201710310430.7A patent/CN107313721B/en active Active
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4164257A (en) * | 1977-12-15 | 1979-08-14 | Atlantic Richfield Company | Internal protection of well casing |
| GB8404207D0 (en) * | 1983-02-23 | 1984-03-21 | Hughes J D | Internal sacrificial anode |
| RU2227201C2 (en) * | 2002-03-18 | 2004-04-20 | Николаев Николай Михайлович | Method for destroying pipe portion in a well and device realizing said method |
| CN2536600Y (en) * | 2002-05-08 | 2003-02-19 | 大庆开发区东油新技术有限公司 | Corrosionproof protection of watery oil well casings by anodic column strings in adjacent wells |
| RU2254400C1 (en) * | 2004-03-03 | 2005-06-20 | ООО НГДУ "Уфанефть" | Device for a cathode protection of the run down-well equipment |
| CA2522559A1 (en) * | 2005-10-07 | 2007-04-07 | Petrosleeve Incorporated | Pipeline cathodic protection connection |
| CN2918446Y (en) * | 2006-05-01 | 2007-07-04 | 许德才 | Oil well and pipeline corrosion protection cathodic protection apparatus |
| CN201010693Y (en) * | 2006-11-04 | 2008-01-23 | 董宝玉 | Oil well anti-corrosion device |
| CN201713579U (en) * | 2010-01-10 | 2011-01-19 | 濮阳市信宇石油机械化工有限公司 | Oil pipe corrosion prevention device utilizing cathodic protection by adopting sacrificial anode |
| CN203685144U (en) * | 2014-02-07 | 2014-07-02 | 刘海生 | Oil well sleeve oil production device |
| US20170059737A1 (en) * | 2014-02-13 | 2017-03-02 | Groundmetrics, Inc. | System and Method for Mapping Deep Anomalous Zones of Electrical Resistivity |
| CN204251715U (en) * | 2014-12-08 | 2015-04-08 | 新疆坤源石油技术开发有限公司 | Oil tube cathode protector |
| CN105422051A (en) * | 2015-12-10 | 2016-03-23 | 吴明涛 | Oil production process device |
| CN205638328U (en) * | 2016-04-19 | 2016-10-12 | 中国石油天然气股份有限公司 | Well head hangs assembly |
| KR101680798B1 (en) * | 2016-05-20 | 2016-11-29 | (재)한국건설생활환경시험연구원 | System of impressed current cathodic protection for realtime monitoring corrosion of coldest place pipeline, and method for the same |
| CN206972203U (en) * | 2017-05-04 | 2018-02-06 | 中石油煤层气有限责任公司 | Pumpingh well impressed current method anti-corrosive apparatus |
Non-Patent Citations (2)
| Title |
|---|
| 丁继峰;高志贤;: "油井套管外壁阴极保护技术概述", no. 09 * |
| 杨建华, 耿文宾, 李美丽, 黄俊伟, 党化民, 田国理: "濮城油田井下管杆偏磨腐蚀因素分析及防治对策", 石油仪器, vol. 2, no. 06, pages 259 - 54 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112129501A (en) * | 2020-08-28 | 2020-12-25 | 中国石油天然气股份有限公司 | Device and method for predicting service life of sucker rod centralizer |
| CN112695329A (en) * | 2020-11-12 | 2021-04-23 | 中国石油天然气股份有限公司 | Long-acting anode internal corrosion prevention device under oil well pump and corrosion prevention method thereof |
| CN113957444A (en) * | 2021-09-14 | 2022-01-21 | 陕西省建文能源科技有限公司 | Intelligent impressed current anti-corrosion system for oil and gas well |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107313721B (en) | 2024-02-20 |
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