CN208220662U - A kind of oil pipe anti-corrosive tools - Google Patents
A kind of oil pipe anti-corrosive tools Download PDFInfo
- Publication number
- CN208220662U CN208220662U CN201820654389.5U CN201820654389U CN208220662U CN 208220662 U CN208220662 U CN 208220662U CN 201820654389 U CN201820654389 U CN 201820654389U CN 208220662 U CN208220662 U CN 208220662U
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- China
- Prior art keywords
- oil pipe
- support tube
- corrosive
- pipe anti
- outer tube
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Abstract
The utility model belongs to oil pipe anti-corrosive technical field, and in particular to a kind of oil pipe anti-corrosive tools.A kind of oil pipe anti-corrosive tools, including top connection and support tube connected to it, the outside of the middle section of the support tube is provided with outer tube, and the both ends of outer tube are arranged on support tube by centering ring respectively, and active metal layer is provided in the gap between the support tube and outer tube.The utility model anti-corrosive tools can slow down the electrochemical corrosion of oil pipe and casing, extend the service life of oil pipe and casing, and reduce underground failure and material damage.
Description
Technical field
The utility model belongs to oil pipe anti-corrosive technical field, and in particular to a kind of oil pipe anti-corrosive tools.
Background technique
Oil field production at present comes into High water cut or super-high water-cut stage, and the production of crude oil is increased with water drive oil
Amount, but be degrading oil pipe, casing and downhole tool there are environment.Due to injecting water in oil field development production, mostly it is
Stratum output water carries out injected after treatment, and formation water salinity is very high belongs to strong electrolyte, for down-hole oil tube, set
Pipe and downhole tool all have strong electrochemical corrosion effect.Electrochemical corrosion be corrode in oil and gas exploitation it is main
Existence form, petroleum pipeline, down-hole casing, oil pipe, sucker rod and its downhole tool etc. for a long time with soil, well liquid, natural gas and
Water flooding (seawater) contact, it is different that stratum that different pit shafts is contacted, well liquid electrolyte be different, aqueous difference constitutes pit shaft
Electrochemical corrosion.The service life for thus substantially reducing oil pipe etc., operations number is increased, improves production cost.
Utility model content
The purpose of this utility model is that a kind of oil pipe anti-corrosive tools are provided aiming at the problems existing in the prior art, it should
Anti-corrosive tools can slow down the electrochemical corrosion of oil pipe and casing, extend the service life of oil pipe and casing, and reduce underground event
Barrier and material damage.
The technical solution of the utility model is:
A kind of oil pipe anti-corrosive tools, including top connection and support tube connected to it, the middle part of the support tube
Point outside be provided with outer tube, the both ends of outer tube are arranged on support tube by centering ring respectively, the support tube and outer
Active metal layer is provided in gap between pipe.
Specifically, the metal of the active metal layer is one of potassium, sodium, magnesium, iron, aluminium or zinc or several
Combination.
Specifically, the top connection is connected through a screw thread support tube.
Specifically, the overall diameter diameter of the outer tube is less than or equal to110mm。
Specifically, the length of the support tube is 1080mm.
The beneficial effects of the utility model are: the device has installed outer tube and protection additional compared with plain tubing cathodic protector
Device prevents active metal erosion from falling into well, extends the service life of oil pipe and casing, and reduces underground failure and material
Damage, reduces underground failure and operating cost.The utility model can be applied to flowing well, pumpingh well, submerged electric oil pump well, note
The oil pipe and casing tube anti-corrosive of all kinds of oil and gas exploitations such as well, the natural gas well.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
1 top connection, 2 support tubes, 3 centering rings, 4 active metals layer, 5 outer tubes.
Specific embodiment
It is as shown in Figure 1 a kind of structural schematic diagram of oil pipe anti-corrosive tools, including top connection 1 and support connected to it
Pipe 2, which is characterized in that the outside of the middle section of the support tube 2 is provided with outer tube 5, and the both ends of outer tube 5 pass through respectively
Centering ring 3 is arranged on support tube 2, and active metal layer 4 is provided in the gap between the support tube 2 and outer tube 5.
The metal of the active metal layer 4 is one of potassium, sodium, magnesium, iron, aluminium or zinc or several combinations.
The top connection 1 is connected through a screw thread support tube 2.The overall diameter diameter of the outer tube 5 is less than or equal to110mm.Described
The length of support tube 2 is 1080mm.
The anti-corrosive tools are connect with oil pipe using when the utility model, in operation together with oil pipe G.I.H, oil
Pipe, casing and active metal layer 4 constitute a new macroscopical battery, active metal 4 structure of layer under the same electrolyte environment
The anode of Cheng Xin, and oil pipe and casing then become cathode, the active metal of active metal layer constantly consumes, to slow down oil pipe
With the corrosion of casing, achieve the purpose that protect oil pipe and casing.
Anti-corrosive tools provided by the utility model can use in the environment of 110 DEG C, effectively generation electricity >=
1.1A.h/g；Consumption rate :≤12.36kg/A.a；Current efficiency: >=65%.
The requirement of the utility model oil well anti-corrosive tools: flowing well, water injection well and the every 90-100m peace of the natural gas well is installed
One is filled, oil pumping well, submerged electric oil pump well can emphasis installations.
Finally it should be noted that: above embodiments are only to illustrate the technical solution of the utility model rather than limit it
System；Although the utility model has been described in detail with reference to the preferred embodiment, those of ordinary skill in the art should
Understand: specific implementation of the utility model can still be modified or is equally replaced to some technical characteristics
It changes；Without departing from the spirit of technical solutions of the utility model, should all cover in the claimed technical solution of the utility model
In range.
Claims (5)
1. a kind of oil pipe anti-corrosive tools, including top connection (1) and support tube connected to it (2), which is characterized in that described
The outside of the middle section of support tube (2) is provided with outer tube (5), and the both ends of outer tube (5) pass through centering ring (3) setting respectively and exist
On support tube (2), active metal layer (4) is provided in the gap between the support tube (2) and outer tube (5).
2. oil pipe anti-corrosive tools according to claim 1, which is characterized in that the metal of the described active metal layer (4) is
One of potassium, sodium, magnesium, iron, aluminium or zinc or several combinations.
3. oil pipe anti-corrosive tools according to claim 1, which is characterized in that the top connection (1) is connected through a screw thread
Support tube (2).
4. oil pipe anti-corrosive tools according to claim 1, which is characterized in that the overall diameter diameter of the outer tube (5) is less than
It is equal to
5. oil pipe anti-corrosive tools according to claim 1, which is characterized in that the length of the support tube (2) is
1080mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820654389.5U CN208220662U (en) | 2018-05-04 | 2018-05-04 | A kind of oil pipe anti-corrosive tools |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820654389.5U CN208220662U (en) | 2018-05-04 | 2018-05-04 | A kind of oil pipe anti-corrosive tools |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208220662U true CN208220662U (en) | 2018-12-11 |
Family
ID=64509909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820654389.5U Active CN208220662U (en) | 2018-05-04 | 2018-05-04 | A kind of oil pipe anti-corrosive tools |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208220662U (en) |
-
2018
- 2018-05-04 CN CN201820654389.5U patent/CN208220662U/en active Active
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