CN204401107U - Oil well sacrificial anode protection device - Google Patents
Oil well sacrificial anode protection device Download PDFInfo
- Publication number
- CN204401107U CN204401107U CN201420813505.5U CN201420813505U CN204401107U CN 204401107 U CN204401107 U CN 204401107U CN 201420813505 U CN201420813505 U CN 201420813505U CN 204401107 U CN204401107 U CN 204401107U
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- Prior art keywords
- oil well
- protection device
- short circuit
- casing
- oil pipe
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- Expired - Fee Related
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Abstract
The utility model relates to a kind of oil well sacrificial anode protection device being specifically designed to oil well casing, oil pipe generation galvanic corrosion; comprise top connection, oil pipe short circuit and magnalium anode composition; described top connection and the screwed connection of oil pipe short circuit, described magnalium anode and oil pipe short circuit are tightly connected.Oil well sacrificial anode protection device solves the tubing and casing etching problem existed in prior art; in oil well production string; by the oil well sacrificial anode protection device of tube corrosion situation reasonable disposition some amount; just effectively can suppress the galvanic corrosion of tubing and casing; significantly extend the work-ing life of tubing and casing; and this apparatus structure is simple, is convenient to work-over operation, prevention tubing and casing galvanic corrosion Be very effective.
Description
Technical field
The utility model relates to the subsurface tool used in oilfield, and outstanding tool relates to a kind of oil well sacrificial anode protection device.
Background technology
In current oil-field development, along with water content of oil well increases and the spilling of hydrogen sulfide in oil reservoir, the ionogen in water and tubing and casing and stratum constitute a kind of natural battery, will cause chemical reaction like this.In electrochemical reaction process, the tubing and casing of steel becomes the anode of battery, and stratum becomes negative electrode, and the iron ion of tubing and casing is ceaselessly to formation flow, and cause tubing and casing corrosion failure, tubing and casing is scrapped.
Because above-mentioned defect, the design people, actively in addition research and innovation, to founding a kind of oil well sacrificial anode protection device, make it have more utility value in industry.
Utility model content
For solving the problems of the technologies described above, the purpose of this utility model is to provide a kind of oil well sacrificial anode protection device being specifically designed to oil well casing, oil pipe generation galvanic corrosion.
Oil well sacrificial anode protection device of the present utility model, comprises top connection, oil pipe short circuit and magnalium anode, and described top connection and the screwed connection of oil pipe short circuit, described magnalium anode and oil pipe short circuit are tightly connected.
Further, described magnalium anode is connected with oil pipe short circuit die casting.
Further, described magnalium anode is connected with oil pipe short circuit shrink-fit hot charging.
Further, described magnalium anode excessively coordinates to cold pressing with oil pipe short circuit and is connected.
By such scheme; the utility model at least has the following advantages: oil well sacrificial anode protection device solves the tubing and casing etching problem existed in prior art; in oil well production string; by the oil well sacrificial anode protection device of tube corrosion situation reasonable disposition some amount; just effectively can suppress the galvanic corrosion of tubing and casing, significantly extend the work-ing life of tubing and casing, and this apparatus structure be simple; be convenient to work-over operation, prevention tubing and casing galvanic corrosion Be very effective.
Above-mentioned explanation is only the general introduction of technical solutions of the utility model, in order to better understand technique means of the present utility model, and can be implemented according to the content of specification sheets, coordinates accompanying drawing to be described in detail as follows below with preferred embodiment of the present utility model.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model oil well sacrificial anode protection device;
In figure:
1, top connection; 2, oil pipe short circuit; 3, magnalium anode.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples for illustration of the utility model, but are not used for limiting scope of the present utility model.
See Fig. 1; oil well sacrificial anode protection device described in the utility model one preferred embodiment; comprise top connection 1, oil pipe short circuit 2 and magnalium anode 3; described top connection 1 and oil pipe short circuit 2 screwed connection; described magnalium anode 3 is tightly connected with oil pipe short circuit 2; concrete described magnalium anode is connected with oil pipe short circuit die casting, and object ensures that magnalium anode and oil pipe have good electroconductibility.
As disposable embodiment, described magnalium anode is connected with oil pipe short circuit shrink-fit hot charging.
As disposable embodiment, described magnalium anode excessively coordinates to cold pressing with oil pipe short circuit and is connected.
When its body is installed, tail pipe---protection device for installing---pump line---protector/(pump tube length/100m) is installed.I.e. lower 1 protector of pump, on pump, generally every 100 meter amperes fill 1 protector, and the encryption of seriously corroded well section is installed.
Specifically in practice, according to oil well pipe structure, configure the sacrificial anode protection device of corresponding specification, be convenient to oil well overhaul, upper measure.
Principle of work of the present utility model is as follows: carried out by the battery structure of oil well self-assembling formation artificial changing merit, select a kind of metal (magnalium) more active than tubing and casing as the anode of battery, and allowing tubing and casing become the negative electrode of battery, well Inner electrolysis matter industrial and mineral is constant.At this moment; there is following reaction process in the battery after adjustment: magnesium ion, the aluminum ion of magnalium flow to tubing and casing continuously; and tubing and casing accepts magnesium, aluminum ion endlessly; self iron ion then transfixion, so just reaches and sacrifices target anode and protect the object of tubing and casing.
During concrete operation well workover, play the corrosion condition of oil outlet pipe according to oil well, when determining again to enter pump line down, at the oil well sacrificial anode protection device of seriously corroded area configurations some amount.Corrode more serious, the well workover cycle is longer, corrosion section configuration sacrificial anode protection device quantity more, total requirement is within the well workover cycle, must configure enough anodes for oil well.
The above is only preferred implementation of the present utility model; be not limited to the utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model know-why; can also make some improvement and modification, these improve and modification also should be considered as protection domain of the present utility model.
Claims (4)
1. an oil well sacrificial anode protection device, is characterized in that: comprise top connection, oil pipe short circuit and magnalium anode, and described top connection and the screwed connection of oil pipe short circuit, described magnalium anode and oil pipe short circuit are tightly connected.
2. oil well sacrificial anode protection device according to claim 1, is characterized in that: described magnalium anode is connected with oil pipe short circuit die casting.
3. oil well sacrificial anode protection device according to claim 1, is characterized in that: described magnalium anode is connected with oil pipe short circuit shrink-fit hot charging.
4. oil well sacrificial anode protection device according to claim 1, is characterized in that: described magnalium anode excessively coordinates to cold pressing with oil pipe short circuit and is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420813505.5U CN204401107U (en) | 2014-12-22 | 2014-12-22 | Oil well sacrificial anode protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420813505.5U CN204401107U (en) | 2014-12-22 | 2014-12-22 | Oil well sacrificial anode protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204401107U true CN204401107U (en) | 2015-06-17 |
Family
ID=53424984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420813505.5U Expired - Fee Related CN204401107U (en) | 2014-12-22 | 2014-12-22 | Oil well sacrificial anode protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204401107U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105618716A (en) * | 2016-03-29 | 2016-06-01 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | Zinc anode material and oil casing electric conduction connecting manner and machining method |
| CN106761466A (en) * | 2016-12-29 | 2017-05-31 | 中国石油天然气股份有限公司 | Short circuit |
| CN111577155A (en) * | 2020-05-25 | 2020-08-25 | 盘锦和润实业有限公司 | Functional alloy pipe column corrosion protector |
| CN111577156A (en) * | 2020-05-25 | 2020-08-25 | 盘锦和润实业有限公司 | Functional alloy pipe column corrosion protector |
| CN112921323A (en) * | 2021-01-14 | 2021-06-08 | 中国石油天然气股份有限公司 | Indoor evaluation device and evaluation method for sacrificial anode material |
-
2014
- 2014-12-22 CN CN201420813505.5U patent/CN204401107U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105618716A (en) * | 2016-03-29 | 2016-06-01 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | Zinc anode material and oil casing electric conduction connecting manner and machining method |
| CN106761466A (en) * | 2016-12-29 | 2017-05-31 | 中国石油天然气股份有限公司 | Short circuit |
| CN111577155A (en) * | 2020-05-25 | 2020-08-25 | 盘锦和润实业有限公司 | Functional alloy pipe column corrosion protector |
| CN111577156A (en) * | 2020-05-25 | 2020-08-25 | 盘锦和润实业有限公司 | Functional alloy pipe column corrosion protector |
| CN112921323A (en) * | 2021-01-14 | 2021-06-08 | 中国石油天然气股份有限公司 | Indoor evaluation device and evaluation method for sacrificial anode material |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150617 Termination date: 20151222 |
|
| EXPY | Termination of patent right or utility model |