CN108266160A - A kind of anti-corrosion, scale-inhibiting wax-proofing apparatus and system - Google Patents
A kind of anti-corrosion, scale-inhibiting wax-proofing apparatus and system Download PDFInfo
- Publication number
- CN108266160A CN108266160A CN201810339000.2A CN201810339000A CN108266160A CN 108266160 A CN108266160 A CN 108266160A CN 201810339000 A CN201810339000 A CN 201810339000A CN 108266160 A CN108266160 A CN 108266160A
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- China
- Prior art keywords
- scale
- corrosion
- inhibition
- inhibiting wax
- inhibiting
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Classifications
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- 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
- E21B37/00—Methods or apparatus for cleaning boreholes or wells
- E21B37/06—Methods or apparatus for cleaning boreholes or wells using chemical means for preventing, limiting or eliminating the deposition of paraffins or like substances
Abstract
The present invention provides a kind of anti-corrosion, scale-inhibiting wax-proofing apparatus and system, wherein the anti-corrosion, scale-inhibiting wax-proofing apparatus includes inhibition anti-corrosion portion, corrosion-mitigation scale-inhibition portion and scale-inhibiting wax-proof portion successively from top to bottom, between connected with detachable connection：Anode tube including adapting pipe, is inlayed inside the adapting pipe by inhibition anti-corrosion portion；Corrosion-mitigation scale-inhibition portion, including support tube, the central axial setting turbulated tube of support tube, turbulent tube wall sets through-hole, and the annular space between support tube and turbulated tube inlays corrosion-inhibition scale-inhibition bar；Scale-inhibiting wax-proof block including screen casing, is inlayed by scale-inhibiting wax-proof portion inside the screen casing.Anti-corrosion, scale-inhibiting wax-proofing apparatus provided by the invention and system are the organic combinations of anti-corrosion, scale-inhibiting wax control function, it is effectively that anti-corrosion, scale-inhibiting wax control function is integrated, simplify tubular column structure, installation is replaced convenient, and anode tube, corrosion-inhibition scale-inhibition bar and scale-inhibiting wax-proof block can be replaced and be added with well according to using consumption, cost is reduced, alleviates the labor intensity of a line direct labor.
Description
Technical field
The present invention relates to oil exploration equipment field, more particularly, to a kind of anti-corrosion, scale-inhibiting wax-proofing apparatus and system.
Background technology
In general, during oil exploitation, oil well production string can be corroded, and can also when conveying substantial oil for a long time
Fouling, wax deposition not only seriously hinder crude oil production and conveying, shorten the military service period of tubing string, can also increase oil well
Inspection pump number and maintenance cost increase the labor intensity of staff.At present, solve tube corrosion, fouling, wax deposition mode very
It is more, such as install various devices and short circuit additional on production tube column, realize the function of anti-corrosion, antiscale and wax control respectively, but this
A little device performances are single, structure disperses, and pipe series winding is caused to connect difficult, operation and is not easy, causes production tube rod structure complicated, safety
Hidden danger is larger.
Invention content
The present invention proposes that its purpose is to provide a kind of collection anti-corrosion, antiscale, wax control functions to solve the above-mentioned problems
It is integrated, and device simple in structure, easy for installation.
It is a further object of the present invention to provide a kind of anti-corrosion, scale-inhibiting wax control systems for including above-mentioned anti-corrosion, scale-inhibiting wax-proofing apparatus
System.
To achieve the above object, the present invention provides a kind of anti-corrosion, scale-inhibiting wax-proofing apparatus, prevents successively including inhibition from top to bottom
Rotten portion, corrosion-mitigation scale-inhibition portion and scale-inhibiting wax-proof portion, detachably to connect between inhibition anti-corrosion portion, corrosion-mitigation scale-inhibition portion and the scale-inhibiting wax-proof portion
The mode of connecing connects：Anode tube including adapting pipe, is inlayed inside the adapting pipe by the inhibition anti-corrosion portion；The corrosion-mitigation scale-inhibition portion,
Including support tube, the central axial setting turbulated tube of support tube, it is described turbulent flow tube wall setting through-hole, the support tube with it is disorderly
Annular space between flow tube inlays corrosion-inhibition scale-inhibition bar；Scale inhibition including screen casing, is inlayed inside the screen casing by the scale-inhibiting wax-proof portion
Paraffin prevention block.
Preferably, the support tube inner upper end setting suspension plate, the suspension plate setting suspension strand cable, the suspension twist
Rope can move in suspension plate by shaft rotation of center, and the turbulated tube upper end is connect with the suspension strand cable.
Preferably, the support tube interior lower end setting radial direction spoiler, the radial direction spoiler is annular slab, and center is
Circular through hole runner, distribution setting runner through-hole in plate face.
Preferably, turbulated tube lower end outer cover is equipped with positioning lock, which is column pipe.
Preferably, the inhibition anti-corrosion portion is connect with corrosion-mitigation scale-inhibition portion by the first connector, and first connector is
Crossover sub, inside are stepped circular through hole, and setting convolution spoiler inside through-hole.
Preferably, the circumferential spoiler of the screen casing inner upper end setting, the turbulent change-over panel of lower end setting.
Preferably, 2/3rds sections of screen casing lower part circumferential direction is gathered through-hole, and is prolonged and axial be evenly distributed to bottom.
Preferably, the corrosion-mitigation scale-inhibition portion is connected with scale-inhibiting wax-proof portion by the second connector, and second connector is
Without hindrance box cupling.
Preferably, the circumferentially disposed 6-10 through-hole of the turbulent tube wall, with time delay axial alignment 15-25 groups.
The present invention also provides a kind of anti-corrosion, scale-inhibiting wax control system, including oil well pump, upper tubing string, the above-mentioned anti-corrosion, scale-inhibiting of lower tubular column
Wax-proofing apparatus, the anti-corrosion, scale-inhibiting wax-proofing apparatus upper end are connect by third connector with upper tubing string, the anti-corrosion, scale-inhibiting wax control
Device lower end is connect by the 4th connector with lower tubular column, and upper tubing string upper end is connect with oil well pump.
Anti-corrosion, scale-inhibiting wax-proofing apparatus provided by the invention and system, have the advantages that：
(1) it hangs strand cable and turbulated tube forms the strand cable mechanism of a set of flexibility and reliability, the strand inside corrosion-mitigation scale-inhibition portion
Corrosion-inhibition scale-inhibition bar suspension is embedded between support tube and turbulated tube by rope mechanism, is avoided the open caisson of corrosion-inhibition scale-inhibition bar and is fallen,
Oil reservoir production fluid after being acted on simultaneously by the dissolved effective ion of corrosion-inhibition scale-inhibition bar and with scale-inhibiting wax-proof block is in turbulent flow
Pipe is sufficiently mixed, and utmostly plays anti-corrosion, scale-inhibiting wax control result.
(2) radial direction spoiler, circumferential spoiler and turbulent change-over panel are set inside corrosion-mitigation scale-inhibition portion and scale-inhibiting wax-proof portion, and
And the first convolution spoiler of setting inside connector, the settings of these components can fully increase oil reservoir production fluid and anode tube, slow
Time of contact and the contact area of anti-scale rod and scale-inhibiting wax-proof block are lost, utmostly plays anti-corrosion, scale-inhibiting wax control result.
(3) design of the screen casing in scale-inhibiting wax-proof portion increases the contact area of scale-inhibiting wax-proof block and stratum liquid, same to time delay
The time of contact of scale-inhibiting wax-proof block and stratum liquid is grown so that scale-inhibiting wax-proof block is fully dissolved, and is played and is more effectively made
With, while also save the setting of production screen on tubing string.
(4) anode tube and adapting pipe inlay connection using without hindrance, and resistance value is less than 2 ohm between anode and adapting pipe, is ensureing
Under the premise of without hindrance connection so that the current-carrying capacity (i.e. the capacitance of Unit Weight) in the range of anode effective length is maximum, thus
Increase the military service period of anode tube, extend the service life of tubing string.
In conclusion anti-corrosion, scale-inhibiting wax-proofing apparatus provided by the invention is the organic combination of anti-corrosion, scale-inhibiting wax control function, have
Effect ground is integrated by anti-corrosion, scale-inhibiting wax control function, simplifies tubular column structure, it is convenient that installation is replaced, and anode tube, corrosion-mitigation scale-inhibition
Stick and scale-inhibiting wax-proof block can be replaced and be added with well according to using consumption, reduced cost, alleviated a line direct labor's
Labor intensity.
Description of the drawings
Fig. 1 is the structure diagram of anti-corrosion, scale-inhibiting wax-proofing apparatus provided by the invention.
Fig. 2 is the A portions enlarged drawing of anti-corrosion, scale-inhibiting wax-proofing apparatus provided by the invention.
Fig. 3 is the B portions enlarged drawing of anti-corrosion, scale-inhibiting wax-proofing apparatus provided by the invention.
Fig. 4 is the structure diagram of anti-corrosion, scale-inhibiting wax control system provided by the invention.
【Reference sign】
100：Anti-corrosion, scale-inhibiting wax-proofing apparatus 110：Inhibition anti-corrosion portion
120：Corrosion-mitigation scale-inhibition portion 130：Scale-inhibiting wax-proof portion
140：First connector 150：Second connector
111：Adapting pipe 112：Anode tube
121：Support tube 122：Turbulated tube
123：Corrosion-inhibition scale-inhibition bar 124：Suspension plate
125：Hang strand cable 126：Radial direction spoiler
127：Positioning lock 131：Screen casing
132：Scale-inhibiting wax-proof block 133：Circumferential spoiler
134：Turbulent change-over panel 141：Circle round spoiler
200：Oil well pump 300：Upper tubing string
400：Lower tubular column 500：Third connector
600：4th connector
Specific embodiment
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.When illustrating the embodiment of the present invention, if right
The specific descriptions of related known element or function are an impediment to the gist of the invention, then by description is omitted.
Fig. 1 is the structure diagram of anti-corrosion, scale-inhibiting wax-proofing apparatus provided by the invention.
Fig. 2 is the A portions enlarged drawing of anti-corrosion, scale-inhibiting wax-proofing apparatus provided by the invention.
Fig. 3 is the B portions enlarged drawing of anti-corrosion, scale-inhibiting wax-proofing apparatus provided by the invention.
With reference to Fig. 1-3, the present invention provides a kind of anti-corrosion, scale-inhibiting wax-proofing apparatus 100, is mainly used for oil extraction process, can use
The anti-corrosion of tubing string, scale inhibition and wax control in quarrying apparatus, which includes inhibition anti-corrosion portion 110 successively from top to bottom, inhibition hinders
Dirty portion 120 and scale-inhibiting wax-proof portion 130, with removable between inhibition anti-corrosion portion 110, corrosion-mitigation scale-inhibition portion 120 and the scale-inhibiting wax-proof portion 130
Unload connection mode connection.The inhibition anti-corrosion portion 110, for preventing from and inhibiting to slow down the corrosion of tubing string, including adapting pipe 111,
Anode tube 112 is inlayed inside the adapting pipe 111；The corrosion-mitigation scale-inhibition portion 120, for inhibiting to slow down the corrosion of tubing string and preventing
The fouling of tubing string, including support tube 121, the central axial setting turbulated tube 122 of support tube 121,122 tube wall of turbulated tube
Through-hole is set, and the annular space between the support tube 121 and turbulated tube 122 inlays column corrosion-inhibition scale-inhibition bar 123；The scale inhibition
Scale-inhibiting wax-proof block for preventing the fouling of tubing string and wax deposition, including screen casing 131, is inlayed inside the screen casing 131 by wax control portion 130
132, the scale-inhibiting wax-proof block 132 can be oil-soluble scale-inhibiting wax-proof block.
121 inner upper end of support tube sets suspension plate 124, the suspension plate 124 setting suspension strand cable 125, the suspension
Strand cable 125 can be the hinge arrangement of stair-step appearance, can be freely rotated in suspension plate 124 by axis of center, the turbulated tube
122 upper ends are connect with the suspension strand cable 125, so as to which the turbulated tube 122 can be rotated with suspension strand cable 125.
122 tube wall of turbulated tube can circumferentially disposed 6-10 through-hole, with time delay axial alignment 15-20 groups.Pass through suspension
The rotation of strand cable 125 and turbulated tube 122, can by 123 dissolved effective ion of corrosion-inhibition scale-inhibition bar with scale-inhibiting wax-proof block
Oil reservoir production fluid after 132 effects is sufficiently mixed in turbulated tube 122, utmostly plays anti-corrosion, scale-inhibiting wax control result.
121 interior lower end of support tube can also set radial direction spoiler 126, and the radial direction spoiler 126 is annular slab,
Center is circular through hole runner, is also distributed in plate face and sets multiple runner through-holes, which can pass through the logical of center
Be distributed on hole runner and plate face setting multiple runner through-holes change oil reservoir production fluid flow regime, increase oil reservoir production fluid with
The time of contact of corrosion-inhibition scale-inhibition bar 123 and contact area make corrosion-inhibition scale-inhibition bar 123 fully dissolve.
The 122 lower end outer cover of turbulated tube is equipped with positioning lock 127, which is column circular tube shaped, for controlling
Corrosion-inhibition scale-inhibition bar 123 inlays quantity, prevents corrosion-inhibition scale-inhibition bar 123 from inlaying excessive and leading to open caisson.
The anode tube 112, corrosion-inhibition scale-inhibition bar 123 and scale-inhibiting wax-proof block 132 can be respectively in adapting pipe 111, support tubes 121
And 131 inside interference of screen casing is inlayed or part inlay, and can replace and add with well according to using consumption, user can root
According to needing to select.
The inhibition anti-corrosion portion 110 is removably connect with corrosion-mitigation scale-inhibition portion 120 by the first connector 140, institute
The first connector 140 is stated as crossover sub, inside is stepped circular through hole, and setting convolution spoiler 141 inside through-hole, should
Convolution spoiler 141 is annular slab, and center is circular through hole runner, is also distributed in plate face and sets multiple runner through-holes, the convolution
Spoiler 141 can change oil reservoir production fluid by being distributed multiple runner through-holes of setting on the through-hole runner and plate face at center
The type of flow increases oil reservoir production fluid and anode tube 112 and time of contact and the contact area of corrosion-inhibition scale-inhibition bar 123, fills it
Divide and play effectiveness.
131 inner upper end of the screen casing setting circumferential direction spoiler 133, the turbulent change-over panel 134 of lower end setting, are annular
Plate, center are circular through hole runner, are also distributed in plate face and set multiple runner through-holes, the flowing shape of oil reservoir production fluid can be changed
State increases time of contact and the contact area of oil reservoir production fluid and scale-inhibiting wax-proof block 132, scale-inhibiting wax-proof block 132 is made fully to dissolve.
2/3rds sections of 131 lower part of screen casing can circumferentially gather through-hole, and prolong and axial be evenly distributed to bottom.This is logical
Hole can increase the contact area of scale-inhibiting wax-proof block 132 and stratum liquid, while extend scale-inhibiting wax-proof block 132 and stratum liquid
Time of contact so that scale-inhibiting wax-proof block 132 is fully dissolved, and plays more effectively effect, while is also saved raw on tubing string
Produce the setting of screen casing.
The corrosion-mitigation scale-inhibition portion 120 can removably be connect with scale-inhibiting wax-proof portion 130 by the second connector 150,
Second connector 150 can be without hindrance box cupling, be through hole cylindrical.
First connector, 140 and second connector 150 is prevented with inhibition anti-corrosion portion 110, corrosion-mitigation scale-inhibition portion 120 and scale inhibition
The detachable connection in wax portion 130 can be to be threadedly coupled, or snap connection.When to be threadedly coupled, first connects
140 and second connector of fitting, 150 end can set internal thread, outside 131 end set of adapting pipe 111, support tube 121 and screen casing
Screw thread.
Fig. 4 is the structure diagram of anti-corrosion, scale-inhibiting wax control system provided by the invention.
With reference to Fig. 2, the present invention also provides a kind of anti-corrosion, scale-inhibiting wax control system, including oil well pump 200, upper tubing string 300, down tube
Column 400 and above-mentioned anti-corrosion, scale-inhibiting wax-proofing apparatus 100,100 upper end of anti-corrosion, scale-inhibiting wax-proofing apparatus by third connector 500 with
Upper tubing string 300 connects, and 100 lower end of anti-corrosion, scale-inhibiting wax-proofing apparatus is connect by the 4th connector 600 with lower tubular column 400, and
Upper 300 upper end of tubing string is connect with oil well pump 200.
500 and the 4th connector 600 of third connector can be the connector that inside is stepped circular through hole, with upper tube
Column 300, anti-corrosion, scale-inhibiting wax-proofing apparatus 100 and lower tubular column 400 are detachably connected, and detachable connection can be to be threadedly coupled or block
Button connection.
Hereinafter, illustrate the occupation mode of anti-corrosion, scale-inhibiting wax-proofing apparatus and anti-corrosion, scale-inhibiting wax control system provided by the invention.
During oil extraction, under the action of oil well pump 200, oil reservoir production fluid (including oil and water) is into anti-corrosion, scale-inhibiting
Scale-inhibiting wax-proof block 132 is gradually dissolved in wax-proofing apparatus 100, the crude oil part of production fluid in screen casing 131, and the water section of production fluid
Corrosion-inhibition scale-inhibition bar 123 is gradually dissolved in support tube 121, dissolved effective ion with scale-inhibiting wax-proof block 132 with acting on
Production fluid afterwards is sufficiently mixed by turbulated tube 122, and to be carried out at the same time anti-corrosion, scale inhibition and wax deposition, which utilizes ion saturation
Corrosion-inhibition scale-inhibition bar 123 and scale-inhibiting wax-proof block 132 are carried out organic combination by balance mode so that each section mutually makes up, mends each other
It is filled with and achievees the effect that be carried out at the same time anti-corrosion, scale inhibition and wax control.Then, production fluid in inhibition anti-corrosion portion 110 further with sun
Pole pipe 112 acts on, and so as to achieve the effect that sacrificial anode and protective cathode, further carries out corrosion protection to tubing string.
The open circuit potential of the anode tube 112 high (≤- 1.52V), capacitance are big (>=2800AH/Kg), with adapting pipe
111 inlay connection using without hindrance, ensure that resistance value is less than 2 ohm between anode and adapting pipe.
More than, the preferred embodiment of the present invention is described in detail.But the present invention is not limited to aforementioned reality
It applies example, but can be realized with different various forms.Embodiments of the disclosure is used for the purpose of making the present invention's in this specification
It discloses complete so that those of ordinary skill in the art completely learn that scope of the invention is provided.Protection scope of the present invention
It should be subject to the content of claim.
Claims (10)
1. a kind of anti-corrosion, scale-inhibiting wax-proofing apparatus includes inhibition anti-corrosion portion, corrosion-mitigation scale-inhibition portion and scale-inhibiting wax-proof portion successively from top to bottom,
It is connected between inhibition anti-corrosion portion, corrosion-mitigation scale-inhibition portion and the scale-inhibiting wax-proof portion with detachable connection, which is characterized in that
Anode tube including adapting pipe, is inlayed inside the adapting pipe by the inhibition anti-corrosion portion；
The corrosion-mitigation scale-inhibition portion, including support tube, the central axial setting turbulated tube of support tube, the turbulent flow tube wall setting
Through-hole, the annular space between the support tube and turbulated tube inlay corrosion-inhibition scale-inhibition bar；
Scale-inhibiting wax-proof block including screen casing, is inlayed by the scale-inhibiting wax-proof portion inside the screen casing.
2. anti-corrosion, scale-inhibiting wax-proofing apparatus according to claim 1, which is characterized in that the support tube inner upper end setting is outstanding
Hanging plate, the suspension plate setting suspension strand cable, the suspension strand cable can move in suspension plate by shaft rotation of center, the turbulated tube
Upper end is connect with the suspension strand cable.
3. anti-corrosion, scale-inhibiting wax-proofing apparatus according to claim 2, which is characterized in that the support tube interior lower end sets diameter
To spoiler, the radial direction spoiler is annular slab, and center is circular through hole runner, and setting runner through-hole is distributed in plate face.
4. anti-corrosion, scale-inhibiting wax-proofing apparatus according to claim 3, which is characterized in that turbulated tube lower end outer cover is equipped with
Positioning lock, the positioning lock are column pipe.
5. anti-corrosion, scale-inhibiting wax-proofing apparatus according to claim 1, which is characterized in that the inhibition anti-corrosion portion and corrosion-mitigation scale-inhibition
Portion is connected by the first connector, and first connector is crossover sub, and inside is stepped circular through hole, and inside through-hole
Setting convolution spoiler.
6. anti-corrosion, scale-inhibiting wax-proofing apparatus according to claim 1, which is characterized in that the screen casing inner upper end setting is circumferential
Spoiler, the turbulent change-over panel of lower end setting.
7. anti-corrosion, scale-inhibiting wax-proofing apparatus according to claim 1, which is characterized in that 2/3rds sections of screen casing lower part circumferential direction is close
Cloth through-hole, and prolong and be axially evenly distributed to bottom.
8. anti-corrosion, scale-inhibiting wax-proofing apparatus according to claim 1, which is characterized in that the corrosion-mitigation scale-inhibition portion and scale-inhibiting wax-proof
Portion is connected by the second connector, and second connector is without hindrance box cupling.
9. anti-corrosion, scale-inhibiting wax-proofing apparatus according to claim 1, which is characterized in that the circumferentially disposed 6- of the turbulent flow tube wall
10 through-holes, with time delay axial alignment 15-25 groups.
10. a kind of anti-corrosion, scale-inhibiting wax control system, including oil well pump, upper tubing string, lower tubular column and as described in claim any one of 1-9
Anti-corrosion, scale-inhibiting wax-proofing apparatus, which is characterized in that the anti-corrosion, scale-inhibiting wax-proofing apparatus upper end passes through third connector and upper tubing string
Connection, the anti-corrosion, scale-inhibiting wax-proofing apparatus lower end is connect by the 4th connector with lower tubular column, and upper tubing string upper end and oil well pump
Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810339000.2A CN108266160A (en) | 2018-04-16 | 2018-04-16 | A kind of anti-corrosion, scale-inhibiting wax-proofing apparatus and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810339000.2A CN108266160A (en) | 2018-04-16 | 2018-04-16 | A kind of anti-corrosion, scale-inhibiting wax-proofing apparatus and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108266160A true CN108266160A (en) | 2018-07-10 |
Family
ID=62777718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810339000.2A Pending CN108266160A (en) | 2018-04-16 | 2018-04-16 | A kind of anti-corrosion, scale-inhibiting wax-proofing apparatus and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108266160A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112744932A (en) * | 2019-10-31 | 2021-05-04 | 南京水联天下海水淡化技术研究院有限公司 | Scale inhibition device and scale inhibition method for tunnel drainage system |
| CN115263241A (en) * | 2022-08-08 | 2022-11-01 | 周泽晟 | Down-hole turbulent flow long-acting corrosion-proof and scale-proof device |
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| CN112744932A (en) * | 2019-10-31 | 2021-05-04 | 南京水联天下海水淡化技术研究院有限公司 | Scale inhibition device and scale inhibition method for tunnel drainage system |
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| CN115263241A (en) * | 2022-08-08 | 2022-11-01 | 周泽晟 | Down-hole turbulent flow long-acting corrosion-proof and scale-proof device |
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