CN206694007U - Oil-water well electrochemistry targets transfer drive and water blocking device - Google Patents
Oil-water well electrochemistry targets transfer drive and water blocking device Download PDFInfo
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- CN206694007U CN206694007U CN201720296795.4U CN201720296795U CN206694007U CN 206694007 U CN206694007 U CN 206694007U CN 201720296795 U CN201720296795 U CN 201720296795U CN 206694007 U CN206694007 U CN 206694007U
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- oil
- sucker rod
- oil pipe
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Abstract
The utility model discloses a kind of oil-water well electrochemistry targeting transfer drive and water blocking device, described device includes oil pipe, the sucker rod moved up and down is provided with the oil pipe on axis, the sucker rod bottom is provided with piston, floral tube is provided with below the sucker rod, oil pump is provided between the sucker rod and floral tube, it is provided with the floral tube and plurality of rows of penetrates oilhole, described penetrate below oilhole is provided with bottom insulation terminal, positive electrode is connected with below the insulated terminal, electrode contact is provided with the positive electrode outer wall, the electrode contact is connected by cable with dc source, the other end of the dc source is connected with negative electrode.The utility model utilizes dc source, use metal electrode, (plating) processing is electrolysed to the oil-containing water layer (aqueous oil reservoir) of high salinity, is allowed to form iron hydroxide or gel aluminum hydroxide and realizes the blocking to water stream channel under electric field force effect and along direction of an electric field enrichment.
Description
Technical field
The utility model is related to process for petroleum recovery technical field, in particular to a kind of oil-water well electrochemistry target transfer drive and
Water blocking device.
Background technology
In oil extraction in oil field development process, crude oil water containing gradually rises, and in order to supplement stratum energy, the later stage under development is all
Waterflooding extraction is carried out, Advance Water Injection is also wanted for hypotonic and Oil in Super-low Permeability oil field, due to the inhomogeneity on stratum, coning can be caused to show
As causing waterflood, adopting contradiction to solve note, conventional method is to carry out profile control, transfer drive operation in well, to Thief zone
Band and crack are blocked, and injection chemical agent is carried out in oil well, so as to be blocked to high permeability zone and crack.Transfer drive, water blockoff
Operation, because technical reason does not accomplish that complete water blockoff passage exists without blocking up oily passage, current technology for oil and water well construction
Also the passage of oil has been sealed off while blocking exhalant canal, has easily caused and accompanies stifled phenomenon, furthermore sometimes also can be high water-yielding stratum
Fallen with packer card or cementing plugging, a part of remaining oil is not exploited, cause the wasting of resources.Asked to solve this
Topic, the method for generally use are：
1st, selective water shutoff agent, such as polyacrylamide or polyacrylamide gel are injected.
2nd, MICROBIAL SURFACTANT is injected to lower oil water interfacial tension.
But some problems are have also discovered in technique application process at the scene, are mainly manifested in：
(1), the judgement to water exit is not accomplished very accurate.
(2), do not accomplish the not stifled oil of a water blockoff to oil-water common-layer, exist and accompany stifled situation.
The content of the invention
The purpose of this utility model is to be directed to prior art defect, there is provided a kind of oil-water well electrochemistry targets transfer drive and blocked up
Water installations.
To achieve the above object, a kind of oil-water well electrochemistry targeting transfer drive provided by the utility model and water blocking device, institute
Stating device includes oil pipe, is provided with the sucker rod moved up and down on axis in the oil pipe, the sucker rod bottom is provided with
Piston, the sucker rod lower section are provided with floral tube, oil pump are provided between the sucker rod and floral tube, is provided with the floral tube
Plurality of rows of to penetrate oilhole, described penetrate below oilhole is provided with bottom insulation terminal, and positive electrode is connected with below the insulated terminal,
Electrode contact is provided with the positive electrode outer wall, the electrode contact is connected by cable with dc source, the direct current
The other end in source is connected with negative electrode.Positive and negative electrode is made of steel, aluminium or other conductive materials, is set on the electrode
There is binding post；
Further, it is provided between the sucker rod and oil pipe and is arranged with two insulated terminals in parallel, respectively first
Insulated terminal and the second insulated terminal；And first insulated terminal in the surface of the second insulated terminal.Above-mentioned insulated terminal uses
Nylon, bakelite or other insulating materials are made；
Yet further, it is all provided with the R a T outer wall between first insulated terminal and the second insulated terminal
It is equipped with multiple centralizers.
Yet further, the cable is divided into first paragraph cable and second segment cable, and the end of first paragraph cable one is connected on
Another to terminate on the oil pipe tube wall above the second insulated terminal on electrode contact, the end of second segment cable one is connected on the first insulation
On oil pipe tube wall below terminal, the other end is connected with direct current of ground power supply.
Principle of the present utility model：
1) electric current has good electric conductivity in salt solution, and there is very high resistance value can regard as or not crude oil and rock
Conductive.
2) the aqueous oil reservoir of high salinity can be assigned as an electrolytic cell.
3) metal ion such as iron, aluminium is hydrolyzed to gel in alkaline aqueous solution and moves and be enriched with electric field force effect.
4) high-salinity brine is similar to the alkaline of chlorine industry, makes oil well high permeability zone in alkalescence.
In summary, the utility model utilizes dc source, and using metal electrode, the oil-containing water layer of high salinity (is contained
Water oil reservoir) (plating) processing is electrolysed, it is allowed to be formed iron hydroxide or gel aluminum hydroxide under electric field force effect and along electricity
Field direction is enriched with to realize the blocking to water stream channel.
The beneficial effects of the utility model are：
The utility model is only travelled by water to walk the characteristic of oil circuit using electric current, designs a kind of oil-water well electrochemistry targeting transfer drive
The production of conventional oil-water well is not only suitable for water blocking device, Gao Ning, high viscous, high-water-cut oil-producing well are also applied for, for feed flow deficiency
Oil well also have certain effect, the invention improves resource utilization.
Brief description of the drawings
Fig. 1 is the structural representation that oil-water well electrochemistry targets transfer drive and water blocking device in embodiment 1；
Fig. 2 is the structural representation that oil-water well electrochemistry targets transfer drive and water blocking device in embodiment 2；
In figure, oil pipe 1, sucker rod 2, piston 2.1, oil pump 3, floral tube 4, oilhole 4.1, oil well oil reservoir perforated interval 5, positive electricity are penetrated
Pole 6, electrode contact 6.1, cable 7, first paragraph cable 7.1, second segment cable 7.2, negative electrode 8, dc source 9, first insulate
Terminal 11, the second insulated terminal 12, bottom insulation terminal 13, centralizer 14.
Embodiment
In order to preferably explain the utility model, furtherd elucidate below in conjunction with specific embodiment of the present utility model main
Content, but content of the present utility model is not limited solely to following examples.
Embodiment 1
A kind of oil-water well electrochemistry targeting transfer drive and water blocking device, device include oil pipe 1, are set in oil pipe 1 on axis
Have a sucker rod 2 moved up and down, the bottom of sucker rod 2 is provided with piston 2.1, and the lower section of sucker rod 2 is provided with floral tube 4, sucker rod 2 with
Oil pump 3 is provided between floral tube 4, be provided with floral tube 4 it is plurality of rows of penetrate oilhole 4.1, penetrating the lower section of oilhole 4.1, to be provided with bottom exhausted
Acies 13, the lower section of bottom insulation terminal 13 are connected with positive electrode 6, electrode contact 6.1, electrode are provided with the outer wall of positive electrode 6
Joint 6.1 is connected by cable 7 with dc source 9, and the other end of dc source 9 is connected with negative electrode 8.
The processing technology of said apparatus comprises the following steps：
A, electrode is prepared：The electrode can be fabricated to cylinder, and its diameter and the diameter of floral tube 4 are same, and its upper end sets screw thread and is easy to
It is connected with bottom insulation terminal 13, its material can be made of steel, aluminium or other conductive materials, and the electrode is provided with
Binding post；
B, bottom insulation terminal 13 is prepared：The bottom insulation terminal 13 is fabricated to circular pad, so as in floral tube 4, sucker rod 2
Used with oil pipe 1, the excircle of bottom insulation terminal 13 is provided with the standard tubing round thread for being used for being connected with other parts, adopts
It is made of nylon, bakelite or other insulating materials；
C, the link of circuit：
1st, above-mentioned electrode is put into the position of oil reservoir perforated interval 5 in oil well as positive electrode 6 and be connected with floral tube 4, in flower
Bottom insulation terminal 13 is loaded onto between pipe 4 and positive electrode 6, another negative electrode 8 is accessed nearby on another mouthful of water filling casing.
2nd, positive electrode 6, negative electrode 8 are respectively connected to direct current of ground power supply 9 with cable 7；
Oil-water well electrochemistry targeting transfer drive, the method for water blockoff are carried out using said apparatus, is comprised the following steps：
Switch on power, be passed through the direct current of certain Current Voltage, the iron ion or aluminium ion of positive electrode 6 enter in oil reservoir
Water stream channel and enter stratum, positive electrode 6 electronically forms because electrochemical action loses ionic state in concentrated water and enters oil
A layer aquaporin one-step hydrolysis of going forward side by side be ferric hydroxide gel, or gel aluminum hydroxide, forms precipitation, and then blocking current lead to
Road, reach closure current and prevent it from entering oil pipe.
Embodiment 2
A kind of oil-water well electrochemistry targeting transfer drive and water blocking device, device include oil pipe 1, are set in oil pipe 1 on axis
Have a sucker rod 2 moved up and down, the bottom of sucker rod 2 is provided with piston 2.1, and the lower section of sucker rod 2 is provided with floral tube 4, sucker rod 2 with
Oil pump 3 is provided between floral tube 4, be provided with floral tube 4 it is plurality of rows of penetrate oilhole 4.1, penetrating the lower section of oilhole 4.1, to be provided with bottom exhausted
Acies 13, the lower section of bottom insulation terminal 13 are connected with positive electrode 6, electrode contact 6.1, electrode are provided with the outer wall of positive electrode 6
Joint 6.1 is connected by cable 7 with dc source 9, and the other end of dc source 9 is connected with negative electrode 8.
Cable 7 divides is connected on electrode contact for first paragraph cable 7.1 and second segment cable 7.2, the end of first paragraph cable 7.1 1
On 6.1, another to terminate on the tube wall of oil pipe 1 of the top of the second insulated terminal 12, the end of second segment cable 7.2 1 is connected on the first insulation
On the tube wall of oil pipe 1 of the lower section of terminal 11, the other end is connected with direct current of ground power supply 9.
It is provided between sucker rod 2 and oil pipe 1 and is arranged with two insulated terminals in parallel, respectively the He of the first insulated terminal 11
Second insulated terminal 12；And first insulated terminal 11 in the surface of the second insulated terminal 12.Above-mentioned insulated terminal using nylon,
Bakelite or other insulating materials are made；Outside sucker rod 2 and oil pipe 1 between first insulated terminal 11 and the second insulated terminal 12
Multiple centralizers 14 are provided with wall.
The processing technology of said apparatus comprises the following steps：
A, electrode is prepared：The electrode can be made as cylinder, and its diameter is identical with the diameter of floral tube 4, and its upper end sets screw thread just
It is connected in bottom insulation terminal 13, its material can be made of steel, aluminium or other conductive materials, be set on the electrode
There is binding post；
B, bottom insulation terminal 13 is prepared：The bottom insulation terminal 13 is fabricated to circular pad, so as in floral tube 4, sucker rod 2
Being used with oil pipe 1, the excircle of bottom insulation terminal 13 is provided with the standard tubing round thread for being used for being connected with other parts, when
The standard oil pipe spiral shell for matching with floral tube 4 and being connected just is provided with when need to be connected with floral tube 4, on the excircle of bottom insulation terminal 13
Line, similarly, when that need to be connected with sucker rod 2, just it is connected on the excircle of bottom insulation terminal 13 provided with matching with sucker rod 2
Standard tubing round thread, when that need to be connected with oil pipe 1, on the excircle of bottom insulation terminal 13 just be provided with match with oil pipe 1
The standard tubing round thread of connection, sucker rod 2 and oil pipe 1 are made of nylon, bakelite or other insulating materials；
C, insulating centralizer 14 is prepared, the centralizer 14 is divided to two kinds, and a kind of is the round insulation pad to match with oil pipe 1,
Another kind is the round insulation pad to match with sucker rod 2, and the centralizer internal layer contains the material with certain enabling capabilities, such as
Iron or steel material, its external sheath insulating materials, such as rubber or nylon；
D, the link of circuit：
Insulating centralizer 14 is respectively fitted on sucker rod 2 and oil pipe 1, is set at the box cupling of oil pipe 1 of oil well upper
One insulated terminal 11, the second insulated terminal 12 is set at the box cupling of oil pipe 1 of oil well lower, and the 3rd bottom is set in the lower end of floral tube 4
Insulated terminal 13, the position of oil well oil reservoir perforated interval 5 is put into using described electrode as positive electrode 6, the positive electrode 6 is in oil reservoir
In hydrodynamic face, the cable 7 that positive electrode 6 connects with dc source on well 9 is divided into two sections, the end of first paragraph cable 7.1 1 is connected on just
Electrode is connect on 6 terminals, and another to terminate on the oil pipe 1 of the top of the second insulated terminal 12, the end of second segment cable 7.2 1 is connected on first
On the oil pipe 1 of the lower section of insulated terminal 11, the other end is connected with direct current of ground power supply 9, and negative electrode 8 is mounted in neighbouring another mouthful of water filling
On the collar piping of well, negative electrode 8 accesses direct current of ground power supply 9, such positive electrode 6, first paragraph cable 7.1, oil by cable
Pipe 1, second segment cable 7.2 and dc source 9, negative electrode 8 form current loop.
Oil-water well electrochemistry targeting transfer drive, the method for water blockoff are carried out using said apparatus, is comprised the following steps：
E, switch on power, be passed through the direct current of certain Current Voltage, the iron ion or aluminium ion for making positive electrode 6 enter oil reservoir
In water stream channel and enter stratum, under neutral or basic conditions, electrode iron or aluminium ion are hydrolyzed to hydrogen-oxygen in water
Change iron gel, or gel aluminum hydroxide, form precipitation, and then block water stream channel, reach closure current and prevent it from entering
Enter oil pipe.
Oil pipe 1 is used as one section of cable in embodiment scheme two, but also has oil well casing outside oil pipe 1, to avoid
Conduction is contacted between oil pipe 1 and oil well casing, oil pipe 1 and sucker rod 2, and is insulated respectively on set on oil pipe 1 and on sucker rod 2
Centralizer 14, the insulating centralizer 14 also have another effect, because oil well is not straight, insulating centralizer 14 is also used
In avoiding oil pipe 1 from being touched with sleeve pipe, sucker rod 2 is touched with oil pipe 1.
It is often that multiple-tubing string 1 links together because required oil pipe is very long in oil well, in practical operation, its junction is used
Box cupling connects, and the position just forms box cupling, and the utility model is cased with several insulating centralizers 14 outside oil pipe 1, to avoid absolutely
Edge centralizer 14 glides, and is each provided above box cupling.
Other unspecified parts are prior art.Although above-described embodiment is made that detailed to the utility model
Description, but it is only the utility model part of the embodiment, rather than whole embodiments, people can also be according to this implementations
Example obtains other embodiment under the premise of without creativeness, and these embodiments belong to scope of protection of the utility model.
Claims (4)
1. a kind of oil-water well electrochemistry targeting transfer drive and water blocking device, it is characterised in that：Described device includes oil pipe (1), described
The sucker rod (2) moved up and down is provided with oil pipe (1) interior axis, sucker rod (2) bottom is provided with piston (2.1),
Floral tube (4) is provided with below the sucker rod (2), oil pump (3), the flower are provided between the sucker rod (2) and floral tube (4)
Pipe (4) on be provided with it is plurality of rows of penetrate oilhole (4.1), described penetrate below oilhole (4.1) is provided with bottom insulation terminal (13), institute
State and be connected with positive electrode (6) below bottom insulation terminal (13), electrode contact (6.1) is provided with positive electrode (6) outer wall,
The electrode contact (6.1) is connected by cable (7) with dc source (9), and the other end of the dc source (9) is connected with negative
Electrode (8).
2. well electrochemistry targeting transfer drive and water blocking device according to claim 1, it is characterised in that：The sucker rod (2)
It is provided between oil pipe (1) and is arranged with two insulated terminals in parallel, respectively the first insulated terminal (11) and the second insulating end
Sub (12)；And first insulated terminal (11) in the surface of the second insulated terminal (12).
3. well electrochemistry targeting transfer drive and water blocking device according to claim 2, it is characterised in that：First insulating end
Multiple centralizers (14) are provided with sucker rod (2) and oil pipe (1) outer wall between sub (11) and the second insulated terminal (12).
4. well electrochemistry targeting transfer drive and water blocking device according to claim 3, it is characterised in that：The cable (7) point
For first paragraph cable (7.1) and second segment cable (7.2), the end of first paragraph cable (7.1) one is connected on electrode contact (6.1)
On, on another oil pipe (1) tube wall terminated above the second insulated terminal (12), the end of second segment cable (7.2) one is connected on first
On oil pipe (1) tube wall below insulated terminal (11), the other end is connected with direct current of ground power supply (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720296795.4U CN206694007U (en) | 2017-03-24 | 2017-03-24 | Oil-water well electrochemistry targets transfer drive and water blocking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720296795.4U CN206694007U (en) | 2017-03-24 | 2017-03-24 | Oil-water well electrochemistry targets transfer drive and water blocking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206694007U true CN206694007U (en) | 2017-12-01 |
Family
ID=60443935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720296795.4U Expired - Fee Related CN206694007U (en) | 2017-03-24 | 2017-03-24 | Oil-water well electrochemistry targets transfer drive and water blocking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206694007U (en) |
-
2017
- 2017-03-24 CN CN201720296795.4U patent/CN206694007U/en not_active Expired - Fee Related
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171201 |
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| CF01 | Termination of patent right due to non-payment of annual fee |