CN102562014B - High solidifying point crude oil exploiting device and high solidifying point crude oil exploiting method - Google Patents
High solidifying point crude oil exploiting device and high solidifying point crude oil exploiting method Download PDFInfo
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- CN102562014B CN102562014B CN201010619743.9A CN201010619743A CN102562014B CN 102562014 B CN102562014 B CN 102562014B CN 201010619743 A CN201010619743 A CN 201010619743A CN 102562014 B CN102562014 B CN 102562014B
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Abstract
The invention discloses a high solidifying point crude oil exploiting device and a high solidifying point crude oil exploiting method, belonging to the field of oil exploitation. The device comprises an oil-well pump; an oil extracting tube is connected with the upper end of the oil-well pump; the oil extracting tube is formed by connecting single oil tubes; a dual-tube water blending device is arranged between any two single oil tubes under a wax point; the dual-tube water blending device comprises a main body; the main body is provided with an oil extracting tube eccentric hole and a water blending oil tube eccentric hole; the oil extracting tube eccentric hole is communicated with the water blending oil tube eccentric hole; an upper orifice and a lower orifice of the oil extracting tube eccentric hole are respectively connected with the two single oil tubes; the upper orifice of the water blending oil tube eccentric hole is connected with a water blending oil tube, and the lower orifice of the water blending oil tube is sealed. According to the high solidifying point crude oil exploiting device and the high solidifying point crude oil exploiting method, the energy consumption is greatly reduced so as to reduce oil exploiting cost by utilizing heat tracing of hot water for transporting the crude oil of a multi-purpose station.
Description
Technical field
The present invention relates to field of petroleum exploitation, particularly thermal process technology is mixed in oilfield lifting.
Background technology
Along with the development of petroleum industry, crude oil with high solidifying point shared ratio in oil total output increases day by day.Crude oil with high solidifying point, because wax content high-solidification point is high, in exploitation lifting and course of conveying, constantly declines production fluid temperature along journey heat waste, and crude oil condensation viscosity is increased sharply, and flow resistance increase even cannot be flowed.Generally all adopt the method lifting of heating to carry both at home and abroad to this quasi-oil.
Crude oil with high solidifying point mainly contains two kinds of heating exploitation methods at present: one is hollow stem cable hot line heating pour-point depressing method on pump, and one is electric heating oil pipe heating, viscosity reducing method.Be lifted to the crude oil with high solidifying point after well head by these two kinds of heating means exploitations, adopt the method for water mixing insulation to be transported to oil storage tank or oil refinery.
Realizing in process of the present invention, inventor finds that prior art at least exists following problem: above two kinds of exploitation method energy consumptions are high, and investment is large.The average optimization 849KW.h of hollow stem cable hot line heating pour point depression on pump, 18.95 ten thousand yuan of individual well investments; The average optimization 740KW.h of electric heating oil pipe heating, viscosity reducing, 11.6 ten thousand yuan of individual well investments; These two kinds of methods, because its high energy consumption has significantly increased cost for oil production, seriously restrict the exploitation benefit of crude oil with high solidifying point.
Summary of the invention
The object of the embodiment of the present invention is the defect for above-mentioned prior art, a kind of crude oil with high solidifying point oil production method and device are provided, by double-barreled water adding system by hot water from mixing oil recovery oil pipe below wax deposition point, oil recovery production fluid is extraction well head together with mixing hot water, prevented that in exploitation lifting process, the crude oil in Produced Liquid solidifies, the method is utilized multi-purpose station conveying crude oil hot water used, when oil recovery without electrical heating or consume other energy, significantly reduce energy consumption, thereby reduced cost for oil production.
The technical scheme that the present invention takes is to achieve these goals:
A kind of crude oil with high solidifying point extracting device of oil, comprise oil well pump, described oil well pump upper end connects oil recovery oil pipe, and described oil recovery oil pipe is formed by connecting by single oil pipe, between any two adjacent single oil pipes of the described oil recovery oil pipe of wax deposition point below composition, is provided with double-barreled water adding device; Described double-barreled water adding device comprises body, and described body is provided with oil recovery oil pipe eccentric orfice and water mixing oil pipe eccentric orfice, and described oil recovery oil pipe eccentric orfice and described water mixing oil pipe eccentric orfice are communicated with; The aperture up and down of described oil recovery oil pipe eccentric orfice is connected with described two single oil pipes respectively, and on described water mixing oil pipe eccentric orfice, aperture is connected with described water mixing oil pipe, aperture sealing under described water mixing oil pipe eccentric orfice.
Described crude oil with high solidifying point extracting device of oil, also comprise well head twoport flange apparatus, described well head twoport flange apparatus comprises high pressure flange dish, and described high pressure flange dish is provided with two eccentric orfices, and described two eccentric orfices are connected with described oil recovery oil pipe and described water mixing oil pipe respectively.
Described water mixing oil pipe is connected with aperture on described water mixing oil pipe eccentric orfice by insertion apparatus, described insertion apparatus comprises water mixing oil connection, described water mixing oil connection below is provided with normal dog, described water mixing oil connection is connected with described water mixing oil pipe, and described normal dog is positioned at described water mixing oil pipe eccentric orfice inside.
The upper surface of described body is the beveled cone of drawing of opening upwards take described water mixing oil pipe eccentric orfice as axle center.
In described water mixing oil pipe eccentric orfice, be provided with sealing-plug, under described water mixing oil pipe eccentric orfice, aperture is by lengthening deposit tank sealing.
Described insertion apparatus also comprises sealing inner core, described sealing inner core is by leather cup and leather cup pressure ring and the sealing of described water mixing oil pipe eccentric orfice, between described sealing inner core and described water mixing oil connection, be provided with single current control section, described single current control section comprises shell, in described shell, be provided with ball-and-seat, described sealing inner core lower end is connected with described normal dog by locking box cupling.
Described two single oil pipes are connected with described double-barreled water adding device by tubing nipple.
Described two single oil pipes are positioned at described wax deposition point below 1-9m.
Described water mixing oil pipe is connected with described insertion apparatus by safe pipe nipple.
An eccentric orfice in described two eccentric orfices is connected with described oil recovery oil pipe by lower tubing nipple; Another eccentric orfice in described two eccentric orfices is the bellmouth that upper shed is larger than under shed, and described bellmouth is connected with described water mixing oil pipe by water mixing tubing nipple, and described water mixing tubing nipple locates slips by taper and described bellmouth is fixed.
The beneficial effect that the technical scheme that the embodiment of the present invention provides is brought is: by double-barreled water adding system by hot water from mixing oil recovery oil pipe below wax deposition point, oil recovery production fluid is extraction well head together with mixing hot water, thereby improve the up flow velocity of cumulative water-oil ratio, temperature and liquid of production fluid, make crude oil in water, form decentralized photo, prevented that in exploitation lifting process, the crude oil in production fluid solidifies.The method is utilized multi-purpose station conveying crude oil hot water used, when oil recovery, without electrical heating or consume other energy, has significantly reduced energy consumption, and input-output ratio is high, and energy-conserving and environment-protective, to alleviating energy shortage, reduce cost for oil production and be of great significance.
Accompanying drawing explanation
Fig. 1 is the crude oil with high solidifying point extracting device of oil schematic diagram providing in embodiment of the present invention 1-3;
Fig. 2 is the crude oil with high solidifying point extracting device of oil schematic diagram providing in the embodiment of the present invention 4;
Fig. 3 is the double-barreled water adding device schematic diagram of the crude oil with high solidifying point extracting device of oil that provides in the embodiment of the present invention;
Fig. 4 is the twoport flange apparatus schematic diagram of the crude oil with high solidifying point extracting device of oil that provides in the embodiment of the present invention;
Fig. 5 is the Local map of the double-barreled water adding device body that provides in the embodiment of the present invention.
In figure:
1, oil well pump, 2, oil recovery oil pipe, 3, well head twoport flange apparatus, 4, water mixing oil pipe, 5, safe pipe nipple, 6, double-barreled water adding device, 7, water mixing oil connection, 8, shell, 9, single current valve seat, 10, single current valve ball;
11, spring, 12, sealing inner core, 13, leather cup pressure ring, 14, leather cup, 15, locking box cupling, 16, normal dog, 17, body, 18, water mixing oil pipe eccentric orfice, 19, O type circle, 20, sealing-plug;
21, lengthen deposit tank, 22, lengthen tubing nipple, 23, oil recovery oil pipe eccentric orfice, 24, promote tubing nipple, 25, tubing coupling, 26, lower tubing nipple, 27, high pressure flange dish, 28, upper tubing nipple, 29, high pressure hoop, 30, high pressure water mixing clip;
31, high pressure elbow, 32, movable joint cap, 33, packing ring, 34, water mixing tubing nipple, 35, gland, 36, upper supporting ring, 37, packing, 38, lower support ring, 39, taper location slips, 40, opening.
The specific embodiment
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
Embodiment 1
With reference to Fig. 1 and Fig. 3, a kind of crude oil with high solidifying point extracting device of oil, comprises oil well pump 1, oil recovery oil pipe 2, water mixing oil pipe 4 and double-barreled water adding device 6.Oil well pump 1 upper end connects oil recovery oil pipe 2, and oil recovery oil pipe 2 is formed by connecting by many single oil pipes, and connected mode is that limit connection is transferred on limit to down-hole.Crude oil with high solidifying point because of wax content high-solidification point high, exploitation lifting in, along journey heat waste, production fluid temperature is constantly declined, make crude oil with high solidifying point in down-hole some wax deposition solidify, be called wax deposition point herein.Below wax deposition point, between any two adjacent single oil pipes of composition oil recovery oil pipe 2, be provided with double-barreled water adding device 6, double-barreled water adding device 6 comprises body 17, body 17 is provided with oil recovery oil pipe eccentric orfice 23 and water mixing oil pipe eccentric orfice 18, oil recovery oil pipe eccentric orfice 23 and water mixing oil pipe eccentric orfice 18 are communicated with by the opening 40 (not drawing in Fig. 1) on body 17, the lower aperture of oil recovery oil pipe eccentric orfice 23 is connected with the lower single oil pipe that is positioned at below in described two single oil pipes, the upper aperture of oil recovery oil pipe eccentric orfice 23 is connected with the upper single oil pipe that is positioned at top in described two single oil pipes, on water mixing oil pipe eccentric orfice 18, aperture is connected with water mixing oil pipe 4, the lower aperture sealing of water mixing oil pipe eccentric orfice 18.Oil recovery oil pipe 2 can pass through existing techniques in realizing with water mixing oil pipe 4 and being connected of aboveground device.
In the embodiment of the present invention, the connection of each tubing string and tubing string and being connected of aperture can be that to be threaded can be also connected mode conventional in other prior aries.
The embodiment of the present invention realizes oil recovery oil pipe 2 by double-barreled water adding device 6 and is communicated with in down-hole with water mixing oil pipe 3, the hot water of ground multi-purpose station is injected by water mixing oil pipe 4, described hot water mixes oil recovery oil pipe 2 from wax deposition point below by double-barreled water adding device 6, with extraction well head together with the production fluid of oil recovery oil pipe 2, thereby improve the up flow velocity of cumulative water-oil ratio, temperature and liquid of production fluid, make crude oil in water, form decentralized photo, prevented that in exploitation lifting process, the crude oil in production fluid solidifies.The method is utilized multi-purpose station conveying crude oil hot water used, when oil recovery, without electrical heating or consume other energy, has significantly reduced energy consumption, and input-output ratio is high, and energy-conserving and environment-protective, to alleviating energy shortage, reduce cost for oil production and be of great significance.
Embodiment 2
With reference to Fig. 1 and Fig. 4, in order to make to recover the oil, oil pipe 2 and water mixing oil pipe 4 can better engage with well head, on the basis of embodiment 1, the crude oil with high solidifying point extracting device of oil of the present embodiment also comprises well head twoport flange apparatus 3, well head twoport flange apparatus 3 comprises high pressure flange dish 27, high pressure flange dish 27 is provided with two eccentric orfices, described two eccentric orfices are corresponding with oil recovery oil pipe eccentric orfice 23 and water mixing oil pipe eccentric orfice 18 respectively, wherein, the eccentric orfice corresponding with oil recovery oil pipe eccentric orfice 23 is connected with oil recovery oil pipe 2, the eccentric orfice corresponding with water mixing oil pipe eccentric orfice 18 is connected with water mixing oil pipe 4.Well head twoport flange apparatus 3 is connected with well head oil casing big four by bolt.
Embodiment 3
With reference to Fig. 1, Fig. 3 and Fig. 5, the present embodiment is take embodiment 2 as basis, and difference is:
For the convenient water mixing oil pipe 4 that takes out, the water mixing oil pipe 4 of the present embodiment is connected with the upper aperture of water mixing oil pipe eccentric orfice 18 by insertion apparatus, described insertion apparatus comprises water mixing oil connection 7, water mixing oil connection 7 belows are provided with normal dog 16, water mixing oil connection 7 is connected with water mixing oil pipe 4, and normal dog 16 is positioned at water mixing oil pipe eccentric orfice 18 inside and clamps with water mixing oil pipe eccentric orfice 18.
Accurately find and enter water mixing oil pipe eccentric orfice 18 when transferring described insertion apparatus, the upper surface of body 17 is the beveled cone of drawing of opening upwards take water mixing oil pipe eccentric orfice 18 as axle center, as shown in Figure 5, in the time that described insertion apparatus is transferred to body 17, no matter now described insertion apparatus is positioned at which position of body 17 tops, during down to body 17, all can slip in water mixing oil pipe eccentric orfice 18 along drawing beveled cone.
In order conveniently to have descended, oil recovery oil pipe 2 is rear seals pressure testing to oil recovery oil pipe 2, in water mixing oil pipe eccentric orfice 18, be provided with sealing-plug 20, sealing-plug 20 seals by O type circle 19 and water mixing oil pipe eccentric orfice 18, the lower aperture of water mixing oil pipe eccentric orfice 18 is threaded connection with lengthening deposit tank 21, after pressure testing finishes, thereby sealing-plug 20 is pressed into lengthen by the pressure injecting from water mixing oil pipe 4 and in deposit tank 21, realizes water mixing oil pipe 4 and be communicated with oil recovery oil pipe 2, the impurity producing when the interior operation of well etc. also can be deposited on and lengthen in deposit tank 21, with anti-clogging water mixing oil pipe 4.
In order to guarantee that described insertion apparatus and water mixing oil pipe eccentric orfice 18 seal, described insertion apparatus also comprises sealing inner core 12, and sealing inner core 12 lower ends are connected locking by locking box cupling 15 with normal dog 16.Sealing inner core 12 seals with water mixing oil pipe eccentric orfice 18 by V-type leather cup 14 and leather cup pressure ring 13, can prevent that the water in water mixing oil pipe 4 from draining in oil jacket annular space, the embodiment of the present invention also can be used other sealing means, seal combination sealing as hard in cup packing and machinery, the sealing means that the present embodiment uses is not limited to the present invention.
Between sealing inner core 12 and water mixing oil connection 7, be provided with single current control section, described single current control section comprises shell 8, in shell 8, be provided with ball-and-seat, described ball-and-seat is made up of the single current valve seat 9 connecting successively, single current valve ball 10 and spring 11 in the present embodiment, the ball-and-seat that the present embodiment uses is not limited to the present invention, the effect of described ball-and-seat is effectively to prevent that the crude oil with high solidifying point in oil well from entering water mixing oil pipe 4, and then preventing that the impurity adulterating in crude oil with high solidifying point from stopping up water mixing oil pipe 4, the ball-and-seat that can realize this object is all applicable to the present invention.
In order to facilitate double-barreled water adding device 6 to be connected with single oil pipe, the present embodiment connects double-barreled water adding device 6 and single oil pipe by tubing nipple, be specially: double-barreled water adding device 6 is connected with the lower single oil pipe that is positioned at below in described two single oil pipes by lengthening tubing nipple 22, be connected with the upper single oil pipe that is positioned at top in described two single oil pipes by promoting tubing nipple 24, be connected with described single oil pipe for convenient, promote between tubing nipple 24 and described single oil pipe and be also provided with tubing coupling 25, connect by tubing coupling 25.Mix water in order to save, the double-barreled water adding device 6 of the present embodiment is located between described two single oil pipes of wax deposition point below distance wax deposition point 1-9m.
Embodiment 4
With reference to Fig. 2-4, the present embodiment is take embodiment 3 as basis, and difference is:
Be difficult in order to prevent downhole hardware fouling taking out water mixing oil pipe 4, in the present embodiment, water mixing oil pipe 4 is connected with described insertion apparatus by safe pipe nipple 5.Safe pipe nipple 5 is short screw threads that centre position stress-bearing capability is weaker, is connected with water mixing oil pipe 4 and described insertion apparatus by screw thread, in the situation that downhole hardware fouling etc. cannot be extracted water mixing oil pipe 4, can break safe pipe nipple 5 and take out water mixing oil pipe 4.
For two eccentric orfices that facilitate well head twoport flange apparatus 3 are connected with oil recovery oil pipe 2 and water mixing oil pipe 3, adopt tubing nipple to connect it, be specially: the eccentric orfice corresponding with oil recovery oil pipe 2 in described two eccentric orfices, upper aperture is connected with upper tubing nipple 28 by screw thread, lower aperture is connected with lower tubing nipple 26 by screw thread, upper tubing nipple 28 upper ends are connected with high pressure clip 29, high pressure clip 29 upper ends are connected with the little four-way of production tree, and lower tubing nipple 26 is connected with oil recovery oil pipe 2; In described two eccentric orfices, the eccentric orfice corresponding with water mixing oil pipe 4 is the bellmouth that upper shed is larger than under shed, water mixing tubing nipple 34 is located slips 39 by taper and is fixed with described bellmouth, by packing 37 and described bellmouth sealing, slips 39 tops, taper location are followed successively by lower support ring 38, packing 37, upper support ring 36 and gland 35, regulate the thrust of gland 35 by two bolts that are screwed into high pressure flange dish 27, to guarantee that packing 37 seals.In the present embodiment, the upper end of water mixing tubing nipple 34 is connected with high pressure elbow 31 by movable joint cap 32, and seal by packing ring 33, the other end of high pressure elbow 31 connects high pressure water mixing clip 30, and the other end of high pressure water mixing clip 30 is connected with the pipeline mixed with hot water of multi-purpose station.
Embodiment 5
The crude oil with high solidifying point oil production method that uses embodiment of the present invention institute generator, mainly comprises the following steps:
The hot water of 70 ℃ that multi-purpose station is transported is from water mixing oil pipe 4 Injection Wells, and described hot water flows into oil recovery oil pipe 2 from double-barreled water adding device 6;
By extraction well head together with the production fluid of described hot water and oil recovery oil pipe 2.
The embodiment of the present invention realizes oil recovery oil pipe 2 by double-barreled water adding device 6 and is communicated with in down-hole with water mixing oil pipe 3, the hot water of ground multi-purpose station is injected by water mixing oil pipe 4, described hot water mixes oil recovery oil pipe 2 from wax deposition point below by double-barreled water adding device 6, with extraction well head together with the production fluid of oil recovery oil pipe 2, thereby improve the up flow velocity of cumulative water-oil ratio, temperature and liquid of production fluid, make crude oil in water, form decentralized photo, prevented that in exploitation lifting process, the crude oil in Produced Liquid solidifies.The method is utilized multi-purpose station conveying crude oil hot water used, when oil recovery, without electrical heating or consume other energy, has significantly reduced energy consumption, and input-output ratio is high, and energy-conserving and environment-protective, to alleviating energy shortage, reduce cost for oil production and be of great significance.
In the present embodiment, transfer and installation exercise the down-hole of implement device as follows:
Transfer oil well pump 1 and oil recovery oil pipe 2;
Oil recovery oil pipe 2 is to transfer limit by single oil pipe limit to down-hole to be formed by connecting, by double-barreled water adding device 6 with transfer after be positioned at wax deposition point below two single oil pipes be connected;
In order to facilitate double-barreled water adding device 6 to be connected with single oil pipe, the present embodiment connects double-barreled water adding device 6 and single oil pipe by tubing nipple, be specially: double-barreled water adding device 6 is connected with the lower single oil pipe that is positioned at below in described two single oil pipes by lengthening tubing nipple 22, be connected with the upper single oil pipe that is positioned at top in described two single oil pipes by promoting tubing nipple 24, be connected with described single oil pipe for convenient, between lifting tubing nipple 24 and described single oil pipe, being also provided with tubing coupling 25 is connected by tubing coupling 25, in the embodiment of the present invention, oil pipe can also adopt other modes with being connected of watering device 6, the method of attachment that the present embodiment uses is not limited to the present invention.
Described two single oil pipes and double-barreled water adding device 6 are together transferred to down-hole;
Continue to transfer single oil pipe, operation is transferred in the down-hole that completes oil recovery oil pipe 2;
When the oil pipe 2 that recovers the oil in the present embodiment is connected to well head soon, by lower tubing nipple 26, the single oil pipe of well head is connected with high pressure flange dish 27, the eccentric orfice upper end that high pressure flange dish 27 is relative with oil recovery oil pipe 2 is connected with upper tubing nipple 28 by screw thread, upper tubing nipple 28 upper ends are connected to high pressure hoop 29, the upper end of high pressure hoop 29 is connected with the little four-way of production tree, the oil recovery oil pipe 2 of the embodiment of the present invention also can be connected with wellhead assembly by prior art, and the method that the present embodiment uses is not limited to the present invention.
Oil recovery oil pipe 2 is sealed to pressure testing, and now water mixing oil pipe eccentric orfice 18 seals by sealing-plug 20 and O type circle 19;
Oil recovery oil pipe 2 is confirmed to transfer water mixing oil pipe 4 after sealing by pressure testing;
Be difficult in order to prevent downhole hardware fouling taking out water mixing oil pipe 4, in the present embodiment, water mixing oil pipe 4 is connected with insertion apparatus by safe pipe nipple 5 before transferring.Water mixing oil pipe 4 is transferred after connecting with described insertion apparatus, while transferring to downhole double-barreled water adding device 6 position, described insertion apparatus is entered in water mixing oil pipe eccentric orfice 18.
In the present embodiment, locating slips 39 by taper fixes water mixing oil pipe 4 and high pressure flange dish 27, slips 39 tops, taper location are followed successively by lower support ring 38, packing 37, upper support ring 36 and gland 35, regulate the thrust of gland 35 by two bolts that are screwed into high pressure flange dish 27, to guarantee that packing 37 seals.In the present embodiment, by movable joint cap 32, the upper end of water mixing tubing nipple 34 is connected with high pressure elbow 31, and make its sealing by packing ring 33, the other end of high pressure elbow 31 connects high pressure water mixing clip 30, the other end of high pressure water mixing clip 30 is connected with the pipeline mixed with hot water of multi-purpose station, the water mixing oil pipe 4 of the embodiment of the present invention also can be connected with wellhead assembly by prior art, and the method that the present embodiment uses is not limited to the present invention.
When work, the high pressure that sealing-plug 20 and O type circle 19 are injected by water mixing oil pipe 4 squeezes out.
The embodiment of the present invention has realized the exploitation of crude oil with high solidifying point low cost pour point depression, has banned electrical heating oil recovery, has significantly reduced energy consumption.Individual well year economize on electricity 12.5 × 10
4kW.h, saves and once invests 13.5 ten thousand yuan.Crude oil with high solidifying point down-hole waterflooding viscosity-reduction oil-extraction method and technology is reliable, it is convenient to construct, and do not affect the conventionally test of pump efficiency and oil well.Apply effective.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (9)
1. a crude oil with high solidifying point extracting device of oil, comprises oil well pump, and described oil well pump upper end connects oil recovery oil pipe, and described oil recovery oil pipe is formed by connecting by single oil pipe, it is characterized in that,
Between any two adjacent single oil pipes of the described oil recovery oil pipe of wax deposition point below composition, be provided with double-barreled water adding device;
Described double-barreled water adding device comprises body, and described body is provided with oil recovery oil pipe eccentric orfice and water mixing oil pipe eccentric orfice, and described oil recovery oil pipe eccentric orfice and described water mixing oil pipe eccentric orfice are communicated with;
The aperture up and down of described oil recovery oil pipe eccentric orfice is connected with described two single oil pipes respectively, and on described water mixing oil pipe eccentric orfice, aperture is connected with described water mixing oil pipe, aperture sealing under described water mixing oil pipe eccentric orfice;
Described water mixing oil pipe is connected with aperture on described water mixing oil pipe eccentric orfice by insertion apparatus, described insertion apparatus comprises water mixing oil connection, described water mixing oil connection below is provided with normal dog, described water mixing oil connection is connected with described water mixing oil pipe, described normal dog is positioned at described water mixing oil pipe eccentric orfice inside, and described normal dog and described water mixing oil pipe eccentric orfice clamping.
2. crude oil with high solidifying point extracting device of oil according to claim 1, it is characterized in that, also comprise well head twoport flange apparatus, described well head twoport flange apparatus comprises high pressure flange dish, described high pressure flange dish is provided with two eccentric orfices, and described two eccentric orfices are connected with described oil recovery oil pipe and described water mixing oil pipe respectively.
3. crude oil with high solidifying point extracting device of oil according to claim 1, is characterized in that, the upper surface of described body is the beveled cone of drawing of opening upwards take described water mixing oil pipe eccentric orfice as axle center.
4. crude oil with high solidifying point extracting device of oil according to claim 1, is characterized in that, in described water mixing oil pipe eccentric orfice, is provided with sealing-plug, and under described water mixing oil pipe eccentric orfice, aperture is by lengthening deposit tank sealing.
5. crude oil with high solidifying point extracting device of oil according to claim 1, it is characterized in that, described insertion apparatus also comprises sealing inner core, described sealing inner core is by leather cup and leather cup pressure ring and the sealing of described water mixing oil pipe eccentric orfice, between described sealing inner core and described water mixing oil connection, be provided with single current control section, described single current control section comprises shell, in described shell, is provided with ball-and-seat, and described sealing inner core lower end is connected with described normal dog by locking box cupling.
6. crude oil with high solidifying point extracting device of oil according to claim 1, is characterized in that, described two single oil pipes are connected with described double-barreled water adding device by tubing nipple.
7. crude oil with high solidifying point extracting device of oil according to claim 1, is characterized in that, described two single oil pipes are positioned at described wax deposition point below 1-9m.
8. crude oil with high solidifying point extracting device of oil according to claim 1, is characterized in that, described water mixing oil pipe is connected with described insertion apparatus by safe pipe nipple.
9. crude oil with high solidifying point extracting device of oil according to claim 2, is characterized in that, an eccentric orfice in described two eccentric orfices is connected with described oil recovery oil pipe by lower tubing nipple; Another eccentric orfice in described two eccentric orfices is the bellmouth that upper shed is larger than under shed, and described bellmouth is connected with described water mixing oil pipe by water mixing tubing nipple, and described water mixing tubing nipple locates slips by taper and described bellmouth is fixed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010619743.9A CN102562014B (en) | 2010-12-31 | 2010-12-31 | High solidifying point crude oil exploiting device and high solidifying point crude oil exploiting method |
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| CN201010619743.9A CN102562014B (en) | 2010-12-31 | 2010-12-31 | High solidifying point crude oil exploiting device and high solidifying point crude oil exploiting method |
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| CN102562014B true CN102562014B (en) | 2014-07-02 |
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| CN102877798A (en) * | 2012-10-19 | 2013-01-16 | 元路 | Multi-tube coaxial tubing coupling |
| CN112761580A (en) * | 2019-11-06 | 2021-05-07 | 大庆油田有限责任公司 | Water-mixing and wax-proofing method for prefabricated small oil pipe in rodless lifting oil well shaft |
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| CN2383976Y (en) | 1999-08-17 | 2000-06-21 | 辽河石油勘探局华油实业公司泵厂 | Heat thickened oil recovery device using heat conduction oil |
| RU2187630C2 (en) * | 2000-06-19 | 2002-08-20 | ООО "ЛУКОЙЛ-Коми" | Method of development of high-viscosity oil pool |
| CN2688879Y (en) * | 2004-03-20 | 2005-03-30 | 张学鲁 | Top connector for double tube for filling and producing |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1040650A (en) * | 1989-10-06 | 1990-03-21 | 辽河石油勘探局沈阳采油厂 | Test technology for thermally cyclic parallel-pipe oil extraction |
| CN2383976Y (en) | 1999-08-17 | 2000-06-21 | 辽河石油勘探局华油实业公司泵厂 | Heat thickened oil recovery device using heat conduction oil |
| RU2187630C2 (en) * | 2000-06-19 | 2002-08-20 | ООО "ЛУКОЙЛ-Коми" | Method of development of high-viscosity oil pool |
| CN2688879Y (en) * | 2004-03-20 | 2005-03-30 | 张学鲁 | Top connector for double tube for filling and producing |
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| CN102562014A (en) | 2012-07-11 |
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