CN212642673U - Underground pipe column solar protector - Google Patents
Underground pipe column solar protector Download PDFInfo
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- CN212642673U CN212642673U CN202020894675.6U CN202020894675U CN212642673U CN 212642673 U CN212642673 U CN 212642673U CN 202020894675 U CN202020894675 U CN 202020894675U CN 212642673 U CN212642673 U CN 212642673U
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- downhole tubing
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Abstract
The utility model relates to an oil development tubular column anticorrosion technical field in the pit, in particular to tubular column solar energy protector in the pit. The device's a welding base part buries in soil, and a welding base inside packing has ballast grit, and a solar panel support is installed to a welding base upper end, installs solar panel on the solar panel support, installs control system and battery cabinet on the welding base, installs the battery in the battery cabinet. The utility model discloses a make tubular column in the pit be in negative potential protection state for a long time, it is anticorrosive effectual, the protector disposable input, the life cycle is long, the protector need not the well site power, can not increase use cost, safe energy-concerving and environment-protective.
Description
The technical field is as follows:
the utility model relates to an oil development tubular column anticorrosion technical field in the pit, in particular to tubular column solar energy protector in the pit.
Background art:
the corrosion in the oil and gas exploitation is a phenomenon that the production of an oil-water well and a shaft are seriously influenced in the oil field development process, and the oil-water well is scrapped due to the corrosion perforation of an oil-water well casing, the corrosion perforation of various pipelines, frequent replacement and scrapping of production equipment due to corrosion, shortened operation period due to corrosion damage of a down-hole pipe pump and the like all bring huge economic loss to the production of the oil field. The main factors of corrosion of the outer surface of the casing of the injection well of non-hydrocarbon gas flooding such as steam flooding, SAGD and the like in part of oil areas of the country are as follows: 1. the integrity of the casing cement sheath is damaged by high-temperature factors, corrosive media in the stratum directly contact with the exposed casing, and the corrosion rate is increased; 2. associated gas such as hydrogen sulfide and carbon dioxide generated by long-term high-temperature steam injection directly corrodes the sleeve after being dissolved in water; 3. the soil near the surface of the earth has high oxygen concentration and serious oxygen corrosion at high temperature; 4. highly mineralized water in the formation causes corrosion to the casing. The corrosion factor of the outer surface of the casing and the tubing string in the well is chemical or electrochemical corrosion caused by the well fluid. The consequences are as follows:
1. the operation frequency is increased, the cost is increased, and the crude oil yield is reduced;
2. after the casing is pitting-corroded, the fluid in the well leaks, the potential safety hazard is increased, and the result that the oil well is out of control is easily caused;
3. the difficulty of process measures is increased or the process measures cannot be implemented, for example, the measured data is distorted due to the change of characteristic parameters in the well;
4. the casing damage causes the injection and production effect to be poor, such as the development modes of water flooding and non-hydrocarbon gas flooding, small flooding area of the displacement medium and low reserve utilization degree.
The utility model has the following contents:
the to-be-solved technical problem of the utility model is to provide a tubular column solar energy protector in pit, the device have realized making tubular column in negative potential protection state in the pit for a long time, and anticorrosive effectual, the protector once only drops into, and the life cycle is long, and the protector need not the well site power, can not increase use cost, and is safe energy-concerving and environment-protective. The defect that the existing oil field downhole pipe column is easy to corrode is overcome.
The utility model adopts the technical proposal that: a downhole tubular column solar energy protector comprises a welding part base; the welding part base is partially buried in soil, ballast sand stones are filled in the welding part base, a solar panel bracket is mounted at the upper end of the welding part base, a solar panel is mounted on the solar panel bracket, a control system and a storage battery cabinet are mounted on the welding part base, and a storage battery is mounted in the storage battery cabinet;
the control system comprises a charging controller and a current controller, wherein the input end of the charging controller is connected with the solar panel, the output end of the charging controller is connected with the storage battery, the input end of the current controller is connected with the storage battery, the positive pole of the output end of the current controller is respectively connected with a plurality of buried anode systems buried in the soil through anode cables, and the negative pole of the output end of the current controller is connected with the sleeve through a cathode cable;
bury ground positive pole system and include the shell body and arrange the auxiliary anode in the shell body in, set up the stainless steel electrode in the auxiliary anode, the positive pole cable stretches into the auxiliary anode downthehole and is connected with the stainless steel electrode, and the auxiliary anode hole adopts resistant oily water resin to fill, and the shell body intussuseption is filled with the coke grain, and it has a plurality of function holes I to open on the shell body lateral wall.
Half of the base of the weldment is buried in the soil.
Solar panel support, control system and battery cabinet all fix on welding piece base through bolt and nut, and solar panel passes through bolt and nut to be fixed on solar panel support.
The distance between the top of the buried anode systems and the ground is more than or equal to 1.5 meters, the number of the buried anode systems is 8-14, and the distance between the buried anode systems is more than or equal to 1 meter.
The cathode cable is welded with the sleeve.
The outer shell is a cylinder body formed by welding galvanized steel plates with the thickness of 2-4 mm.
The anode cable is connected with the stainless steel electrode through a copper nose and a bolt nut.
A pipe body is arranged on one side of the outer shell, the upper end of the pipe body extends out of the ground, and a plurality of functional holes II are formed in the side wall of the pipe body.
The pipe body adopts a PVC transparent hose.
The diameters of the functional hole I and the functional hole II are both 5-15 mm.
The utility model has the advantages that:
1. the protector enables the underground pipe column to be in a negative potential protection state for a long time by providing an external power supply, and the anti-corrosion effect is good;
2. the protector is put into use at one time, the service cycle is long, the protector adopts solar energy as a power supply, other external power supplies are not needed, the requirement on the service environment is avoided, and the energy conservation and the environmental protection are realized;
description of the drawings:
the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of a weldment base and a solar panel.
Fig. 3 is a left side view of fig. 2.
Fig. 4 is a schematic structural diagram of the control system.
Fig. 5 is a schematic diagram of the structure of a buried anode system.
Fig. 6 is a schematic view of the working principle of the present invention.
The specific implementation mode is as follows:
as shown in fig. 1, 2, 3, 4 and 5, the downhole tubular column solar protector comprises a welding part base 6; the welding part base 6 is partially buried in soil, ballast sand 7 is filled in the welding part base 6, a solar panel bracket 5 is mounted at the upper end of the welding part base 6, a solar panel 1 is mounted on the solar panel bracket 5, a control system 2 and a storage battery cabinet 3 are mounted on the welding part base 6, and a storage battery 4 is mounted in the storage battery cabinet 3;
the control system 2 comprises a charge controller 12 and a current controller 13, wherein the input end of the charge controller 12 is connected with the solar panel 1, the output end of the charge controller 12 is connected with the storage battery 4, the input end of the current controller 13 is connected with the storage battery 4, the positive electrode of the output end of the current controller 13 is respectively connected with a plurality of buried anode systems 11 buried in the soil through an anode cable 9, and the negative electrode of the output end of the current controller 13 is connected with the sleeve 8 through a cathode cable 10;
buried anode system 11 includes shell body 16 and arranges auxiliary anode 14 in shell body 16 in, sets up stainless steel electrode 15 in the auxiliary anode 14, and positive pole cable 9 stretches into auxiliary anode 14 downthehole and is connected with stainless steel electrode 15, and auxiliary anode 14 hole adopts resistant oily water resin 17 to pour into and fills, and water-proof effects is good, packs coke grain 20 in the shell body 16, and it has a plurality of function hole I21 to open on the 16 lateral walls of shell body. The functional hole I21 is convenient for the entering of formation water, and the grounding resistance can be reduced by the design.
Half of the weldment foundation 6 is buried in the soil.
The distance between the top of the buried anode systems 11 and the ground is more than or equal to 1.5 meters, the number of the buried anode systems 11 is 8-14, the ground resistance is reduced, and the distance between the buried anode systems 11 is more than or equal to 1 meter.
The cathode cable 10 is welded to the sleeve 8.
The outer shell 16 is a cylinder welded by galvanized steel sheets 2-4 mm thick.
The anode cable 9 is connected with the stainless steel electrode 15 through the copper nose 19 and the bolt and the nut, so that the electric connection is safe and reliable.
A pipe body 18 is arranged on one side of the outer shell 16, the upper end of the pipe body 18 extends out of the ground, and a plurality of functional holes II 22 are formed in the side wall of the pipe body 18. The tube body 18 facilitates the entry of artificial water for regular irrigation, and the grounding resistance can be reduced by the above process.
The tube 18 is a PVC transparent hose.
The diameters of the functional holes I21 and II 22 are both 5-15 mm.
As shown in figure 6, adopt the operating mode of cathodic protection technique reply whole well section sleeve pipe surface electrochemical corrosion, the utility model discloses an adopt the impressed current cathodic protection product of light energy source as the power, its protective current is provided by solar panel 1 and battery 4, through positive pole cable 9, bury ground positive pole system 11 with the electric current to earth emission, the electric current assembles 8 upper portions of sleeve pipe and rather than welding cathode cable 10 as an organic whole through whole well section sleeve pipe surface, returns control system 2. The current circulates through this circuit, minimizing the rate of corrosion of the casing itself. The protector is arranged at a certain distance from a wellhead, and then the protector can provide cathodic protection current for a protected body, so that continuous long-term protection is realized.
It should be understood that the above detailed description of the present invention is only for illustrating the present invention and is not limited by the technical solutions described in the embodiments of the present invention, and those skilled in the art should understand that the present invention can still be modified or equivalently replaced to achieve the same technical effects; as long as the use requirement is satisfied, the utility model is within the protection scope.
Claims (10)
1. A downhole tubular column solar protector comprising a weldment base (6); the method is characterized in that: the welding part base (6) is partially buried in soil, ballast sand stones (7) are filled in the welding part base (6), a solar panel bracket (5) is installed at the upper end of the welding part base (6), a solar panel (1) is installed on the solar panel bracket (5), a control system (2) and a storage battery cabinet (3) are installed on the welding part base (6), and a storage battery (4) is installed in the storage battery cabinet (3);
the control system (2) comprises a charging controller (12) and a current controller (13), wherein the input end of the charging controller (12) is connected with the solar panel (1), the output end of the charging controller (12) is connected with the storage battery (4), the input end of the current controller (13) is connected with the storage battery (4), the positive electrode of the output end of the current controller (13) is respectively connected with a plurality of buried anode systems (11) buried in the soil through an anode cable (9), and the negative electrode of the output end of the current controller (13) is connected with the sleeve (8) through a cathode cable (10);
buried anode system (11) include shell body (16) and arrange auxiliary anode (14) in shell body (16) in, set up stainless steel electrode (15) in auxiliary anode (14), positive pole cable (9) stretch into auxiliary anode (14) downthehole and be connected with stainless steel electrode (15), fill with filling with oil-proof water resin (17) in auxiliary anode (14) hole, pack coke grain (20) in shell body (16), it has a plurality of function holes I (21) to open on shell body (16) lateral wall.
2. The downhole tubing solar barrier of claim 1, wherein: half of the welding piece base (6) is buried in the soil.
3. The downhole tubing solar barrier of claim 1, wherein: solar panel support (5), control system (2) and battery cabinet (3) all fix on welding piece base (6) through bolt and nut, and solar panel (1) passes through bolt and nut to be fixed on solar panel support (5).
4. The downhole tubing solar barrier of claim 1, wherein: the distance between the top of the buried anode systems (11) and the ground is more than or equal to 1.5 meters, the number of the buried anode systems (11) is 8-14, and the distance between the buried anode systems (11) is more than or equal to 1 meter.
5. The downhole tubing solar barrier of claim 1, wherein: the cathode cable (10) is welded with the sleeve (8).
6. The downhole tubing solar barrier of claim 1, wherein: the outer shell (16) is a cylinder body formed by welding galvanized steel plates with the thickness of 2-4 mm.
7. The downhole tubing solar barrier of claim 1, wherein: the anode cable (9) is connected with the stainless steel electrode (15) through a copper nose (19) and a bolt nut.
8. The downhole tubing solar barrier of claim 1, wherein: a pipe body (18) is arranged on one side of the outer shell (16), the upper end of the pipe body (18) extends out of the ground, and a plurality of functional holes II (22) are formed in the side wall of the pipe body (18).
9. The downhole tubing solar barrier of claim 8, wherein: the tube body (18) is a PVC transparent hose.
10. The downhole tubing solar barrier of claim 8, wherein: the diameters of the functional holes I (21) and the functional holes II (22) are both 5-15 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020894675.6U CN212642673U (en) | 2020-05-25 | 2020-05-25 | Underground pipe column solar protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020894675.6U CN212642673U (en) | 2020-05-25 | 2020-05-25 | Underground pipe column solar protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212642673U true CN212642673U (en) | 2021-03-02 |
Family
ID=74796471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020894675.6U Active CN212642673U (en) | 2020-05-25 | 2020-05-25 | Underground pipe column solar protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212642673U (en) |
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2020
- 2020-05-25 CN CN202020894675.6U patent/CN212642673U/en active Active
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