CN209212210U - A kind of strong magnetite oil underground wax removal antisludging equipment - Google Patents
A kind of strong magnetite oil underground wax removal antisludging equipment Download PDFInfo
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- CN209212210U CN209212210U CN201822149098.3U CN201822149098U CN209212210U CN 209212210 U CN209212210 U CN 209212210U CN 201822149098 U CN201822149098 U CN 201822149098U CN 209212210 U CN209212210 U CN 209212210U
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Abstract
The utility model discloses a kind of strong magnetite oil underground wax removal antisludging equipments, including shell, the shell both ends are provided with end plate, the runner pipe through the shell is provided at the center of the shell, and the end plate is stretched out at the runner pipe both ends, and several group of magnets are provided between the shell and the runner pipe.The utility model carries out anti-corrosion, scale-inhibiting by setting group of magnets, group of magnets generates high-intensity magnetic field, with extraordinary bactericidal effect, and the polymerization of paraffin molecule or micel can be weakened, the effect in magnetic field also destroys the electrostatic attraction state between effects of ion, the variation for leading to ion shape, size and crystalline state, prevents the generation of calcium, magnesium carbonate foulant, to play the role of scale removal.Cost is relatively low for the utility model, easy to use, will not pollute to the environment of surrounding, energy saving, prolongs the service life.
Description
Technical field
The utility model relates to petroleum technology fields, more particularly to a kind of strong magnetite oil underground wax removal antisludging equipment.
Background technique
The well wellbore in many oil fields in China the problem of all there is foulings, wax deposition.Oil well paraffinication refers to is opening in crude oil
During adopting, as temperature and pressure decline and light components constantly escape, the molten wax ability of crude oil constantly reduces therewith, reaches
When certain condition, the wax in crude oil is just precipitated with crystalline solid, is assembled and is deposited on the tubing such as oil jacket tube wall, sucker rod, oil well pump
In equipment.Oil well fouling refers to the down-hole mechanicals components such as oil well pump and oil pipe beam hanger in rod-pumped well pit shaft, produces in oil well
The phenomenon that its surface scale is made by chemical reaction under the long term of liquid out.Crude oil since oil well bottom enters pipeline, by
In the reasons such as oilfield water extraction and petroleum, natural gas itself be aqueous, lead to the fouling since oil well bottom oil extraction pump is just.
When the composition to well wellbore foulant is analyzed, it is found that its main ingredient has sulfate ion, carbonate
The organic substances such as ion, magnesium ion, calcium ion and colloid, pitch and wax, during chemical reaction between ion
The chemical substance for being difficult to dissolve will be generated, these chemical substances are combined with organic substance again, are difficult to then being formed
The dirt of dissolution.In addition, some acidic liquids can corrode oil well since acidizing treatment many times has been carried out in many oil wells
Tubing string can also be containing a large amount of then the salt compounds in well wellbore not only containing the indissolubles such as magnesium carbonate and calcium carbonate
Iron rust, this is also the reason of leading to well wellbore there is serious scale phenomenons.In oil field there are also some oil wells there is
Serious problem of shaking out, generated a large amount of sand grains become the carrier that wax and scale forming matter combine, and result in well wellbore appearance
It is apparent to analyse wax phenomenon, when analyzing the constituent of scale forming matter, find all to contain large amount of organic in these dirts, these
After organic matter and sand grains and salt compounds are admixed together, it is formed the oil well fouling mixture for being difficult to dissolve.
Existing cleaning oil well fouling device there are the shortcomings that: one, during wax removal or preparation must all need oil well to stop
Only operation influences oil well output;Two, relative costs are higher;Three, mechanical paraffin removal unit is not thorough in the presence of cleaning, mechanical structure
There is environmental pollution in the short problem of service life, chemical method wax removal.
Utility model content
The purpose of the utility model is to provide a kind of strong magnetite oil underground wax removal antisludging equipments, are deposited with solving the above-mentioned prior art
The problem of, the phenomenon that preventing pit shaft from fouling occur and being corroded.
To achieve the above object, the utility model provides following scheme:
The utility model provides a kind of strong magnetite oil underground wax removal antisludging equipment, including shell, the shell both ends setting
There is end plate, be provided with the runner pipe through the shell at the center of the shell, and described in the runner pipe both ends stretch out
End plate is provided with several group of magnets between the shell and the runner pipe.
Preferably, group of magnets described in every group includes two pairs of magnet, and each pair of magnet is oppositely arranged.
Preferably, the group of magnets is three, and the magnetic field strength that three group of magnets are formed is different, is located in the middle institute
State the maximum intensity of group of magnets.
Preferably, the cross section of the runner pipe is rectangle, the length of the magnet and the runner pipe rectangular section
Long side is equal.
Preferably, skeleton is additionally provided in the shell, the skeleton is arranged on the outside of the group of magnets, the skeleton two
End offsets with the end plate.
Preferably, shielded layer is provided on the inside of the shell, the shielded layer is arranged in the skeleton and the shell
Between, the space that the shielded layer is formed with the skeleton, the runner pipe, several group of magnets is filled with filler.
Preferably, the shell both ends are provided with interconnecting piece, and the shell is fixed with the interconnecting piece using socket weld
Connection, the end of two interconnecting pieces are provided with screw thread, and the interconnecting piece with oil well pump and screen casing for being attached.
Preferably, the end plate 3-8mm is stretched out at the runner pipe both ends.
Preferably, the shell is made of austenitic stainless steel.
The utility model achieves following technical effect compared with the existing technology:
The utility model carries out anti-corrosion, scale-inhibiting by setting group of magnets, and group of magnets generates high-intensity magnetic field, has extraordinary kill
Bacterium effect, and the polymerization of paraffin molecule or micel can be weakened, the effect in magnetic field also destroys between effects of ion
Electrostatic attraction state, lead to the variation of ion shape, size and crystalline state, prevent the generation of calcium, magnesium carbonate foulant,
To play the role of scale removal.Cost is relatively low for the utility model, easy to use, will not pollute to the environment of surrounding, section
The about energy prolongs the service life.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only the utility model
Some embodiments for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other attached drawings.
Fig. 1 is the strong magnetite oil underground wax removal antisludging equipment schematic diagram of the utility model;
Fig. 2 is the A-A cross-sectional view of Fig. 1;
Fig. 3 is the strong magnetite oil underground wax removal antisludging equipment application schematic diagram of the utility model;
Wherein: 1- shell, 2- end plate, 3- runner pipe, 4- magnet, 5- skeleton, 6- shielded layer, 7- filler, 8- interconnecting piece, 9-
Strong magnetite oil underground wax removal antisludging equipment, 10- box cupling, 11- inlet valve, 12- connector, 13- delivery valve, 14- plunger pump, 15- sieve
Pipe, 16- tail pipe, 17- casing.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are in the premise not made the creative labor
Under every other embodiment obtained, fall within the protection scope of the utility model.
The purpose of the utility model is to provide a kind of strong magnetite oil underground wax removal antisludging equipments, are deposited with solving the above-mentioned prior art
The problem of, the phenomenon that preventing pit shaft from fouling occur and being corroded.
To keep the above objects, features, and advantages of the utility model more obvious and easy to understand, with reference to the accompanying drawing and have
Body embodiment is described in further detail the utility model.
It is as shown in Figure 1-Figure 3: to present embodiments provide a kind of strong magnetite oil underground wax removal antisludging equipment, including shell 1, shell
1 is made of austenitic stainless steel or two phase stainless steel, guarantees that device is from dielectric corrosion during operation.1 both ends of shell are set
It is equipped with end plate 2, the runner pipe 3 through shell 1 is provided at the center of shell 1, and end plate 2 is stretched out at 3 both ends of runner pipe, is circulated
The length that end plate 2 is stretched out at 3 both ends of pipe is 3-8mm, preferably 5mm, to resist fluid media (medium) to the attrition of runner pipe 3,
Extend the service life of strong magnetite oil underground wax removal antisludging equipment.Several group of magnets are provided between shell 1 and runner pipe 3, preferably
It is three groups, every group of group of magnets includes two pairs of magnet 4, and each pair of magnet 4 is oppositely arranged, and magnet 4 is permanent magnet.Each group of magnets is set
When two pairs of magnet 4 being oppositely arranged of meter are to guarantee that medium flow field crosses runner pipe 3, flow direction is perpendicular with magnetic direction,
To guarantee magnetic fields effect.The magnetic field strength that three group of magnets are formed is different, increases the coverage area of magnetic fields, different
The wax removal scale inhibition effect that magnetic field strength plays different media is different, in the present embodiment, is located in the middle the magnetic field of group of magnets
The magnetic field strength of maximum intensity, the group of magnets at both ends is weaker, and wherein the magnetic field strength of the group of magnets of one end is less than the magnetic of the other end
The magnetic field strength of iron group.The cross section of runner pipe 3 is rectangle, and cross section is the section perpendicular to runner pipe axial direction, magnet 4 and square
Two long sides of shape contact, and the length of magnet 4 is equal with the long side of the rectangular section of runner pipe 3, positioned at the same side magnet 4 it
Between be provided with gap.
In the present embodiment, skeleton 5 is additionally provided in shell 1, skeleton 5 is two, is respectively positioned on the outside of group of magnets, skeleton 5
Both ends offset with end plate 2, skeleton 5 is used for fixed magnet 4, and plays a supportive role to end plate 2.The inside of shell 1 is arranged
There is shielded layer 6, shielded layer 6 is arranged between skeleton 5 and shell 1, and shielded layer 6 is made of shielding material, can shield to magnetic
Interference, the space that shielded layer 6 and skeleton 5, runner pipe 3, several group of magnets are formed is filled with filler 7, between magnet 4 between
Gap is also filled with filler 7, and the effect of filler 7 is fixed magnet 4, and filler 7 can prevent permanent magnet demagnetization.
In the present embodiment, group of magnets, shielded layer 6, skeleton 5 and filler 7 be entirely sealed in shell 1 and end plate 2 is formed
In space, a possibility that group of magnets, shielded layer 6, skeleton 5 and filler 7 are by flow-induced corrosion is prevented, so that wax removal antisludging equipment makes
Use longer life expectancy.
In the present embodiment, 1 both ends of shell are provided with interconnecting piece 8, and shell 1 is fixedly connected with interconnecting piece 8 using socket weld,
Between runner pipe 3 and end plate 2, between shell 1 and end cap be fillet weld, to guarantee the concentricity of welding quality and device, two
The end of a interconnecting piece 8 is provided with screw thread, and for connecting with oil well pump and screen casing, the interconnecting piece 8 of upper end is connected with box cupling in turn
10, inlet valve 11, connector 12, delivery valve 13 and plunger pump 14, the interconnecting piece 8 of lower end are connected with box cupling 10, screen casing 15 in turn
With tail pipe 16, also, plunger pump 14, delivery valve 13, connector 12, inlet valve 11, box cupling 10, strong magnetite oil underground wax removal scale inhibition
Device 9, screen casing 15 and tail pipe 16 are arranged in casing 17.
The strong magnetite oil underground wax removal antisludging equipment 9 of the present embodiment is installed below oil well pump, is not subject to (the oil pumping of big pressure
The pressure of top is pumped generally in 25MPa or so, and oil well pump following pressure is not more than 5MPa), it is directly lower to arrive on the inside of oil pick-up tube, no
It is connect with oil pick-up tube, facilitates detection and maintenance.And due to being mounted below oil well pump, the space for avoiding sucker rod is interfered,
Oil liquid can be allowed to pass through from runner pipe 3, it is easier to magnetic field be made to play a role.
Crude stream crosses runner pipe 3, under the action of strong magnetite oil underground wax removal antisludging equipment 9 of the present embodiment, generates strong magnetic
, it has the advantages that;One, there is extraordinary bactericidal effect, the chemical reaction of pit shaft fouling can be slowed down, and strong
Magnetite oil underground wax removal antisludging equipment 9 is able to suppress the growth and breeding of biological bacteria, or even can eliminate biological bacteria, to prevent well
Under metal equipment be corroded;Two, paraffin crystal growth can be postponed, the effect in magnetic field weakens paraffin molecule or micel
Polymerization, due to paraffin crystal can have a certain amount of charge, runner pipe 3 under the influence of a magnetic field, wax attached thereto
Rate of crystalline growth can slow down, and paraffin crystal is suspended among crude oil, so that paraffin crystal be made to flow out with liquid stream;Three, magnetic field
Electrostatic attraction state between action breaks down effects of ion, leads to the change of ion shape, size and crystalline state, at magnetic field
Reason makes the minerals dissolved in advance that the flowing crystallite for being formed and being suspended in water be precipitated from water, after the content of mineral substances in water reduces
Then it can continue to dissolve again, the calcium carbonate through magnetic treatment is discoid crystallization, and the process of this crystal form conversion and secondary crystallization makes pipe
Lime deposit on road is removed, and magnetic field effect is used to prevent the generation of calcium, magnesium carbonate foulant, to play
The effect of scale removal;Four, the dipole molecule dipole polarization of Magnetic Field on Water, electron cloud, which can change, causes hydrogen bond to change,
So that hydrogen bond bending and local fracture, increase single hydrone quantity, liberalization hydrone occupies each sky of solution
Gap can inhibit the formation of crystal, and hydrogen bond angle becomes 103 ° by 105 °, and water becomes 5-6 small by 13-18 original macromolecular mass
Micel, the penetration of water, solubility, surface tension enhance, the CaCO in water3、MgCO3During the cooking process decompose generate compared with
Soft Ca (HCO3)2、Mg(HCO3)2。
The strong magnetite oil underground wax removal antisludging equipment 9 of the present embodiment makes scale forming matter be suspended in liquid in the form of short grained
In, it is extracted on ground by oil well pump together with liquid, forms small since scale forming matter shifts to an earlier date fouling after runner pipe 3
, it is condensed on the duct wall that will not pass through below, is not necessarily to subsequent processing.
It applies specific case in this specification to be expounded the principles of the present invention and embodiment, the above reality
The explanation for applying example is merely used to help understand the method and its core concept of the utility model;Meanwhile for the general of this field
Technical staff, based on the idea of the present invention, there will be changes in the specific implementation manner and application range.To sum up institute
It states, the content of the present specification should not be construed as a limitation of the present invention.
Claims (9)
1. a kind of strong magnetite oil underground wax removal antisludging equipment, it is characterised in that: including shell, the shell both ends are provided with end plate,
The runner pipe through the shell is provided at the center of the shell, and the end plate, institute are stretched out in the runner pipe both ends
It states and is provided with several group of magnets between shell and the runner pipe.
2. strong magnetite oil underground wax removal antisludging equipment according to claim 1, it is characterised in that: group of magnets described in every group includes
Two pairs of magnet, and each pair of magnet is oppositely arranged.
3. strong magnetite oil underground wax removal antisludging equipment according to claim 1, it is characterised in that: the group of magnets is three,
The magnetic field strength that three group of magnets are formed is different, is located in the middle the maximum intensity of the group of magnets.
4. strong magnetite oil underground wax removal antisludging equipment according to claim 2, it is characterised in that: the cross section of the runner pipe
For rectangle, the length of the magnet is equal with the long side of the runner pipe rectangular section.
5. strong magnetite oil underground wax removal antisludging equipment according to claim 1, it is characterised in that: be additionally provided in the shell
Skeleton, the skeleton are arranged on the outside of the group of magnets, and the skeleton both ends offset with the end plate.
6. strong magnetite oil underground wax removal antisludging equipment according to claim 5, it is characterised in that: the inside of the shell is arranged
There is shielded layer, the shielded layer is arranged between the skeleton and the shell, the shielded layer and the skeleton, the circulation
The space that pipe, several group of magnets are formed is filled with filler.
7. strong magnetite oil underground wax removal antisludging equipment according to claim 1, it is characterised in that: the shell both ends are provided with
Interconnecting piece, the shell are fixedly connected with the interconnecting piece using socket weld, and the end of two interconnecting pieces is provided with spiral shell
Line, the interconnecting piece with oil well pump and screen casing for being attached.
8. strong magnetite oil underground wax removal antisludging equipment according to claim 1, it is characterised in that: the runner pipe both ends are stretched out
The end plate 3-8mm.
9. strong magnetite oil underground wax removal antisludging equipment according to claim 1, it is characterised in that: the shell uses austenite
Stainless steel is made.
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CN201822149098.3U CN209212210U (en) | 2018-12-19 | 2018-12-19 | A kind of strong magnetite oil underground wax removal antisludging equipment |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN110748322A (en) * | 2019-12-06 | 2020-02-04 | 李茂华 | Underground ground multifunctional integrated paraffin removal device |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN110748322A (en) * | 2019-12-06 | 2020-02-04 | 李茂华 | Underground ground multifunctional integrated paraffin removal device |
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