CN204457699U - Under-pump liquid blending system - Google Patents
Under-pump liquid blending system Download PDFInfo
- Publication number
- CN204457699U CN204457699U CN201420854519.1U CN201420854519U CN204457699U CN 204457699 U CN204457699 U CN 204457699U CN 201420854519 U CN201420854519 U CN 201420854519U CN 204457699 U CN204457699 U CN 204457699U
- Authority
- CN
- China
- Prior art keywords
- pump
- annular space
- outer tube
- mix
- system under
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 81
- 238000002156 mixing Methods 0.000 title claims abstract description 36
- 239000003129 oil well Substances 0.000 claims abstract description 35
- 239000012530 fluid Substances 0.000 claims description 14
- 239000003921 oil Substances 0.000 description 27
- 238000011010 flushing procedure Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 238000003756 stirring Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000001603 reducing effect Effects 0.000 description 2
- 238000010795 Steam Flooding Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 210000000664 rectum Anatomy 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Abstract
An under pump blending system comprising: the pipe column can be put into a casing pipe of an oil and gas well, and comprises an outer pipe and an inner pipe nested in the outer pipe, wherein a first annular space is formed between the outer pipe and the casing pipe, a second annular space is formed between the outer pipe and the inner pipe, and the outer pipe is provided with a liquid mixing hole so as to communicate the first annular space with the second annular space; the packer is connected with the tubular column through the outer pipe and is positioned below the liquid mixing hole; the oil well pump is fixedly connected to the bottom of the inner pipe, a third annular space is formed between a pump cylinder of the oil well pump and the outer pipe, and the third annular space is communicated with the second annular space. The utility model discloses an under pump adulterating liquid system passes through the second annulus that forms between inner tube and the outer tube and as mixing the liquid passageway, will mix the liquid and introduce the oil-well pump lower extreme, mixes with the viscous oil of oil reservoir output, reaches the purpose of under pump adulterating the liquid viscosity reduction.
Description
Technical field
The utility model belongs to the Technology of Heavy Oil Recovery field, mixes liquid system under particularly relating to a kind of pump, to reduce viscosity of thickened oil, and less viscous crude lifting resistance.
Background technology
Viscosity is the tolerance of internal fluid part frictional resistance when flowing relative to another part, intuitively can characterize the mobile performance of fluid.For viscous crude, because its viscosity is comparatively large, therefore in thickened oil recovery process, there are two hang-ups: 1. viscosity of thickened oil is high, filtrational resistance is large in the earth formation, and the resistance that viscous crude is flowed in pit shaft is larger; Even if 2. viscous crude can flow to pit shaft, but because pressure drop is degassed and heat radiation temperature drop, thick oil viscosity is gone up again, brings difficulty to viscous crude lifting.For the problem that viscous crude filtrational resistance in oil reservoir is larger, normal employing heat treatment technique for oil formation, common are steam soak, steam flooding and combustion in situ etc.; For the problem of viscous crude lifting difficulty in the wellbore, normal adopt viscosity reduction technology, mainly contain heating, viscosity reducing, (comprise and mix chemical agent, hot fluid or thin oil) viscosity reduction etc. of mixing liquid.
Commonly at present mix liquid viscosity reduction technique as shown in Figure 1.Sucker rod 14 affixed oil well pump 17 be deep in oil pipe 13, form casing annulus 12 between oil pipe 13 and sleeve pipe 11, the oil pipe below oil well pump 17 is connected to packer 19, casing annulus 12 and oil reservoir 16 are separated by described packer 19; Oil pipe above oil well pump 17 is provided with and mixes liquid device 15.The liquid mixed enters casing annulus 12, then enters in oil pipe 13 through mixing liquid device 15, after the viscous crude mixing viscosity reduction of discharging with oil well pump 17, then is given rise to ground through oil pipe 13.Pump being mixed the defect that liquid exists is that to mix liquid viscosity reducing effect limited, this is because viscous crude only has enter into oil pipe 13 above it through oil well pump 17, could mix the object reaching viscosity reduction with the liquid that mixes wherein; And in this process of oil reservoir 16 to oil well pump 17, viscous crude, owing to not mixing liquid, causes its viscosity still comparatively large, make the viscous crude in oil reservoir 16 enter oil well pump 17 and still there is larger resistance.Therefore above-mentionedly mix the viscosity reduction problem that liquid technique does not solve viscous crude under pump, cause its be only applicable to viscosity of thickened oil relatively low, the heavy oil wells of easily entering pump.
Utility model content
For the deficiency of pump being mixed the existence of liquid viscosity reduction, the utility model mixes liquid system under providing a kind of pump, and its technical scheme is as follows:
Mix liquid system under a kind of pump, comprising:
The tubing string in Oil/gas Well sleeve pipe can be lowered into, described tubing string comprises outer tube and is nested in the interior pipe in described outer tube, the first annular space is formed between described outer tube and described sleeve pipe, the second annular space is formed between described outer tube and described interior pipe, described outer tube offers and mixes fluid apertures, to link up described first annular space and described second annular space;
By the packer that described outer tube is connected with described tubing string, described in described packer is positioned at, mix the below of fluid apertures;
Be fixed in the oil well pump bottom described interior pipe, form the 3rd annular space between the pump barrel of described oil well pump and described outer tube, described 3rd annular space is communicated with described second annular space.
Mix liquid device under as above, described outer tube is installed with the first ball-and-seat, and described first ball-and-seat is arranged on the outer tube below described oil well pump, and described first ball-and-seat can prevent liquid backflow in described outer tube.
Mix liquid system under pump as above, described oil well pump bottom is fixedly installed the second ball-and-seat, and described second ball-and-seat can prevent from entering the liquid backflow in described pump barrel.
Mix liquid system under pump as above, described second ball-and-seat bottom is fixedly connected with mixing drum, is provided with the cushioning fender of predetermined quantity, the cushioning fender of described predetermined quantity all offers through hole in described mixing drum.
Mix liquid system under pump as above, the predetermined quantity of described cushioning fender is 2 ~ 5.
Mix liquid system under pump as above, the through hole on the cushioning fender of described predetermined quantity is crisscross arranged.
Mix liquid system under pump as above, comprise the top connection with outer box cupling, described outer tube is fixedly connected with described top connection by described outer box cupling.
Mix liquid system under pump as above, described top connection comprises interior box cupling, and described interior pipe is fixedly connected with described top connection by described interior box cupling.
Mix liquid system under pump as above, comprise lower contact, described lower contact is fixedly connected on the bottom of described first ball-and-seat.
By above technical scheme, the beneficial effects of the utility model are: by the second annular space formed between inner and outer tubes and the 3rd annular space be communicated with it as mixing liquid passage, liquid will be mixed and introduce oil well pump lower end, and mix with the viscous crude of oil reservoir output, under reaching pump, mix the object of liquid viscosity reduction;
Described second annular space as well-flushing passage, can also solve prior art and relies on the well-flushing passage in packer to carry out the problem that well-flushing causes packer construction complexity;
In addition, in preferred version, the cushioning fender with through hole is set in the lower end of the second ball-and-seat, made to mix liquid with the viscous crude entered in outer tube before entering the pump barrel of oil well pump, through the stirring of cushioning fender fully to mix, make to mix liquid and viscous crude carries out energy exchange, play the effect of mixing liquid viscosity reduction better.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Liquid process schematic representation mixed by existing pump to Fig. 1;
Fig. 2 is the structural representation mixing liquid system under a kind of pump of the utility model;
Fig. 3 is the structure for amplifying schematic diagram of the packing part of Fig. 2 illustrated embodiment;
Fig. 4 is the structure for amplifying schematic diagram of the upper box cupling of Fig. 3 illustrated embodiment;
Fig. 5 is the structure for amplifying schematic diagram of the oil well pump of Fig. 2 illustrated embodiment;
Fig. 6 is the structure for amplifying schematic diagram of the cushioning fender of Fig. 5 illustrated embodiment.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 2.Liquid system is mixed under a kind of pump, comprise: the tubing string in Oil/gas Well sleeve pipe 21 can be lowered into, the interior pipe 29 that described tubing string comprises outer tube 25 and is nested in described outer tube 25, the first annular space 23 is formed between described outer tube 25 and described sleeve pipe 21, the second annular space 31 is formed between described outer tube 25 and described interior pipe 29, described outer tube 25 offers and mixes fluid apertures 33, to link up described first annular space 23 and described second annular space 31; By the packer 27 that described outer tube 25 is connected with described tubing string, described in described packer 27 is positioned at, mix the below of fluid apertures 33; Be fixed in the oil well pump 35 bottom described interior pipe 29, form the 3rd annular space 39 between the pump barrel 37 of described oil well pump 35 and described outer tube 25, described 3rd annular space 39 is communicated with described second annular space 31.
By above technical scheme, the beneficial effect mixing liquid system under a kind of pump of present embodiment is: by the second annular space 31 of being formed between interior pipe 29 and outer tube 25 and the 3rd annular space 39 that is communicated with it as mixing liquid passage, liquid will be mixed and introduce oil well pump 35 lower end, mix with the viscous crude of oil reservoir output, under reaching pump, mix the object of liquid viscosity reduction; In addition, described second annular space 31 as well-flushing passage, can also solve prior art and relies on the well-flushing passage in packer to carry out the problem that well-flushing causes packer construction complexity.
More complicated owing to mixing liquid system under a kind of pump of present embodiment, be the structure of clear embodiment each several part, spy is carried out segmentation and is amplified process, please also refer to Fig. 3 and Fig. 4.Present embodiment comprises the top connection 51 with outer box cupling 53, and described outer tube 29 is affixed with described top connection 51 by described outer box cupling 53, outer tube 25 runs through offer several and can mix fluid apertures 33 for liquid communication; Or will mix fluid apertures 33 is arranged on and mixes on liquid short circuit, described in mix on the clamping box cupling outside 53 of liquid short circuit.Be provided with interior box cupling 55 mixing inside fluid apertures 33, described interior pipe 29 is fixedly connected with described top connection 51 by described interior box cupling 55, packer 27 is connected with outer tube 25, packer 27 in present embodiment can adopt slip-type packer conventional in prior art or rely on the packer of hydraulic setting, dimension and model can be selected according to actual needs, as long as can realize setting and separate the first annular space 23, under not forming a kind of pump to present embodiment, mix the restriction of liquid system.By top connection 51, interior pipe 29 and outer tube 25 and other devices be arranged in inner and outer pipe are hanged solid desired location in Oil/gas Well sleeve pipe 21, when making packer 27 set like this, do not bear the weight of tubing string and other devices, thus prevent tubing string and other devices, the especially problem that deforms of oil well pump 35.
Refer to Fig. 5.Interior pipe 29 lower end is fixedly connected the pump barrel 37 of oil well pump 35 by box cupling 58, the assembly for plunger 60 of oil well pump 35 is arranged in pump barrel 37, the 3rd annular space 39 is formed between pump barrel 37 and outer tube 25,3rd annular space 39 is communicated with the second annular space 31, by being fixed in the second annular space 31 formed between pipe 29 and outer tube 25 in top connection 51, and the 3rd annular space 39 be communicated with it, provide for mixing liquid the fluid passage flowed under pump.
During practical operation, be lowered in Oil/gas Well sleeve pipe 21 after preposition by mixing liquid system under a kind of pump of present embodiment, set packer 27 is separated the first annular space 23; The liquid that will mix is inputted in the first annular space 23, the liquid of mixing entered in the first annular space 23 enters the second annular space 31 through mixing fluid apertures 33, the 3rd annular space 39 again through being communicated with it enters into below the pump barrel 37 of oil well pump 35, with be about to the viscous crude entered in pump barrel 37 and mix, realize the mixing viscosity reduction of viscous crude before entering pump barrel 37, namely mix liquid under pump.
Refer to Fig. 5.Be fixedly connected with the first ball-and-seat 41 in outer tube 25 bottom by box cupling 59, described first ball-and-seat 41 is arranged on the outer tube 35 below described oil well pump 35, and described first ball-and-seat 41 can prevent liquid backflow in described outer tube 25.First ball-and-seat 41 can adopt the standing valve of valve ball, valve cover and valve seat composition conventional in prior art.When oil well pump 35 is up, lower pump chamber space increases causes pressure in it to reduce rapidly, and in oil reservoir, viscous crude backs down valve ball and enters lower pump chamber, completes viscous crude and draws process.
Described oil well pump 35 is fixedly connected with the second ball-and-seat 43 by pump barrel 37, and described second ball-and-seat 43 can prevent from entering the liquid backflow in described pump barrel 37.Described second ball-and-seat 43 can adopt the structure the same with the first ball-and-seat 41, both with the use of completing the process drawn with lifting viscous crude.
Refer to Fig. 5 and Fig. 6.Preferably, mix liquid system under a kind of pump of present embodiment and be fixedly connected with mixing drum 45 in described second ball-and-seat 43 bottom, be provided with the cushioning fender 47 of predetermined quantity in described mixing drum 45, the cushioning fender 47 of described predetermined quantity all offers through hole 49.The effect that the cushioning fender 47 with through hole 49 can play stirring is set.Mixing liquid with viscous crude may be simply mix below oil well pump 35, therefore in order to make to mix liquid and viscous crude carries out sufficient energy exchange, play the effect of mixing liquid viscosity reduction better, before the mixed liquor mixing liquid and viscous crude enters oil well pump 35, the cushioning fender 47 pairs of mixed liquors arranging predetermined quantity stir, and through hole 49 is interspersed on the cushioning fender 47 of predetermined quantity, instead of latus rectum is arranged, the mixed liquor mixing liquid and viscous crude like this has horizontal staggered flowing between two cushioning fenders 47, can strengthen mixing effect; In a preferred approach, the predetermined quantity of cushioning fender 47 is set to 2 ~ 5, forms Multi-stage stirring, mixing effect can be strengthened further.
Refer to Fig. 5.Present embodiment also comprises lower contact 57, and described lower contact 57 is fixed in the bottom of described first ball-and-seat 41, can connect strike the oil pipeline by lower contact 57.
The beneficial effect mixing liquid system under a kind of pump of present embodiment is: by the second annular space 31 of being formed between interior pipe 29 and outer tube 25 and the 3rd annular space 39 that is communicated with it as mixing liquid passage, liquid will be mixed and introduce oil well pump 35 lower end, mix with the viscous crude of oil reservoir output, under reaching pump, mix the object of liquid viscosity reduction; In addition, described second annular space 31 as well-flushing passage, can also solve prior art and relies on the well-flushing passage in packer to carry out the problem that well-flushing causes packer construction complexity;
In addition, in preferred version, the cushioning fender 47 with through hole 49 is set in the lower end of the second ball-and-seat 43, made to mix liquid with the viscous crude entered in outer tube 25 before entering the pump barrel 37 of oil well pump 35, through the stirring of cushioning fender 47 fully to mix, make to mix liquid and viscous crude carries out energy exchange, play the effect of mixing liquid viscosity reduction better.
The foregoing is only several embodiment of the present utility model, those skilled in the art can carry out various change or modification to the utility model embodiment according to content disclosed in application documents and not depart from spirit and scope of the present utility model.
Claims (9)
1. mix a liquid system under pump, it is characterized in that comprising:
The tubing string in Oil/gas Well sleeve pipe can be lowered into, described tubing string comprises outer tube and is nested in the interior pipe in described outer tube, the first annular space is formed between described outer tube and described sleeve pipe, the second annular space is formed between described outer tube and described interior pipe, described outer tube offers and mixes fluid apertures, to link up described first annular space and described second annular space;
By the packer that described outer tube is connected with described tubing string, described in described packer is positioned at, mix the below of fluid apertures;
Be fixed in the oil well pump bottom described interior pipe, form the 3rd annular space between the pump barrel of described oil well pump and described outer tube, described 3rd annular space is communicated with described second annular space.
2. mix liquid system under pump as claimed in claim 1, it is characterized in that: described outer tube is installed with the first ball-and-seat, described first ball-and-seat is arranged on the outer tube below described oil well pump, and described first ball-and-seat can prevent liquid backflow in described outer tube.
3. mix liquid system under pump as claimed in claim 2, it is characterized in that: described oil well pump bottom is fixedly installed the second ball-and-seat, described second ball-and-seat can prevent from entering the liquid backflow in described pump barrel.
4. mix liquid system under pump as claimed in claim 3, it is characterized in that: described second ball-and-seat bottom is fixedly connected with mixing drum, is provided with the cushioning fender of predetermined quantity, the cushioning fender of described predetermined quantity all offers through hole in described mixing drum.
5. mix liquid system under pump as claimed in claim 4, it is characterized in that: the predetermined quantity of described cushioning fender is 2 ~ 5.
6. mix liquid system under the pump as described in claim 4 or 5, it is characterized in that: the through hole on the cushioning fender of described predetermined quantity is crisscross arranged.
7. mix liquid system under pump as claimed in claim 1, it is characterized in that comprising: the top connection with outer box cupling, described outer tube is fixedly connected with described top connection by described outer box cupling.
8. mix liquid system under pump as claimed in claim 7, it is characterized in that: described top connection comprises interior box cupling, described interior pipe is fixedly connected with described top connection by described interior box cupling.
9. mix liquid system under pump as claimed in claim 2, it is characterized in that comprising: lower contact, described lower contact is fixedly connected on the bottom of described first ball-and-seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420854519.1U CN204457699U (en) | 2014-12-30 | 2014-12-30 | Under-pump liquid blending system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420854519.1U CN204457699U (en) | 2014-12-30 | 2014-12-30 | Under-pump liquid blending system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204457699U true CN204457699U (en) | 2015-07-08 |
Family
ID=53664601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420854519.1U Expired - Fee Related CN204457699U (en) | 2014-12-30 | 2014-12-30 | Under-pump liquid blending system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204457699U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108590609A (en) * | 2018-04-13 | 2018-09-28 | 王玉莲 | Oil well oil-pumping viscosity reduction process tank |
| CN112112578A (en) * | 2020-11-23 | 2020-12-22 | 东营市金亿来石油机械有限公司 | Hollow sucker rod of anti-deflection |
-
2014
- 2014-12-30 CN CN201420854519.1U patent/CN204457699U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108590609A (en) * | 2018-04-13 | 2018-09-28 | 王玉莲 | Oil well oil-pumping viscosity reduction process tank |
| CN108590609B (en) * | 2018-04-13 | 2019-05-10 | 新昌聚合机械科技有限公司 | Oil well oil-pumping viscosity reduction process tank |
| CN112112578A (en) * | 2020-11-23 | 2020-12-22 | 东营市金亿来石油机械有限公司 | Hollow sucker rod of anti-deflection |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102953708A (en) | Bypass short joint capable of being activated and circulated repeatedly | |
| CN109763795B (en) | Bypass diversion screen pipe | |
| CN100538003C (en) | The expansion sieve tube hanging method | |
| CN102031949A (en) | Gas lift method of combined ball plug for drainage and gas production of oil and gas well | |
| CN104481432A (en) | Sand washing pipe column and sand washing method of low-pressure leakage well | |
| CN107387024A (en) | Hollow sucker rod shaft dosing device and shaft dosing method | |
| CN204457699U (en) | Under-pump liquid blending system | |
| CN203050535U (en) | Double hollow sucker rod | |
| CN104948147B (en) | Flow distribution device, viscous oil viscosity reduction exploitation system and heavy oil viscosity reduction exploitation method | |
| CN107152262A (en) | Multistage open-hole gravel pack sand control completion tubing string of horizontal well and method | |
| WO2008083522A1 (en) | A rod pump used for eliminating eccentric rod wear and providing forward well-flushing | |
| CN204782852U (en) | Anti - well washing device is pressed in crowded water injection mud area | |
| CN104453754A (en) | Bidirectional channel check valve and method for washing sand and well by using bidirectional channel check valve | |
| CN207686693U (en) | Oil production pipe and thickened oil exploitation device | |
| CN204492783U (en) | A kind of well cementation fracturing technology tubing string | |
| CN202718655U (en) | Accurate quantification injection seal-examination integrated tubular column | |
| CN207111019U (en) | Combined type junk mill for different hole diameters | |
| CN206554891U (en) | Pump oil extracting device is sprayed in the direct circulation of concentric double pipe post in sleeve pipe | |
| CN104481481A (en) | Viscosity reducing method by mixing chemicals in casing of thick oil well | |
| CN202090848U (en) | Downhole water plugging operation pipe column | |
| CN104832128B (en) | Pollution-free well washing device | |
| CN209908478U (en) | Baffle type underground foaming device | |
| CN204060660U (en) | A kind of static pressure pressure reduction sliding sleeve | |
| CN104153751B (en) | A kind of static pressure pressure reduction sliding sleeve | |
| CN208152967U (en) | Continuous sand flushing circulating valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150708 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |