CN104405626A - Traveling barrel type separate mining/concurrent discharging oil-well pump - Google Patents
Traveling barrel type separate mining/concurrent discharging oil-well pump Download PDFInfo
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- CN104405626A CN104405626A CN201410726062.0A CN201410726062A CN104405626A CN 104405626 A CN104405626 A CN 104405626A CN 201410726062 A CN201410726062 A CN 201410726062A CN 104405626 A CN104405626 A CN 104405626A
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Abstract
The invention belongs to the technical field of oil recovery and specifically relates to a traveling barrel type separate mining/concurrent discharging oil-well pump. The oil-well pump is composed of an outer pump barrel assembly, an inner pump barrel assembly and a plunger assembly, wherein the inner pump barrel assembly is arranged inside the plunger assembly; the plunger assembly is arranged inside the outer pump barrel assembly. The traveling barrel type separate mining/concurrent discharging oil-well pump has the advantages that the plunger of the outer pump can be used as the pump barrel of the inner pump, liquid feed and discharge are completed by use of an annular space between the inner and outer pump barrels, and liquids go into the pump barrels via respective different channels without mutual interference. Meanwhile, the geometrical length of the pump is reduced to 6.0m from 9.8m and the resistance to bending of the pump is enhanced; besides, the pump is simple and convenient in construction and prone to field implementation.
Description
Technical field
The invention belongs to oil recovery technique field, be specifically related to a kind of movable barrel type and divide to adopt and mix out oil well pump, under being applicable to cased hole completion mode, the multiple-zone production oil well that serious interlayer interference, interlayer contradiction are outstanding.
Background technique
At present domestic in rod pumping system for avoiding interlayer interference, and mainly have developed multiple oil production by layer instrument: biased valve type separate extracting pump, gas-tight formula separate extracting pump, independent liquid in-out separate extracting pump, sliding valve style separate extracting pump, constant pressure check valve etc., and define a series of point of excavating technology tubing string.But due to the restriction of structure and Placement, traditional separate extracting pump is the slim-lined construction of many ball valves, be easy to bending deflection under setting force impact and cause pump efficiency to decline, serious meeting causes holddown, cisco unity malfunction.
Summary of the invention
The object of the invention is to overcome conventional separate extracting pump easy diastrophic problem under the impact of packer setting power.
For this reason, the invention provides a kind of movable barrel type and divide to adopt and mix out oil well pump, be made up of outer pump barrel assembly, interior pump barrel assembly and plunger piston assembly, described interior pump barrel assembly is located at plunger piston assembly inside, and this plunger piston assembly is located at the inside of outer pump barrel assembly;
Described outer pump barrel assembly is made up of outer pump barrel box cupling, outer pump barrel, screen casing, lower contact from top to bottom successively, described screen casing internal upper part is provided with side direction feed pathway, bottom is provided with lower standing valve, the lower end of described outer pump barrel box cupling is connected with the top of outer pump barrel, the bottom of outer pump barrel is fixed with screen casing, and the lower end of described lower standing valve is connected with lower contact;
Described plunger piston assembly is made up of pull bar, rod head, plunger, upper travelling valve, and described rod head is connected with the upper end of upper travelling valve, and the lower end of upper travelling valve is connected with plunger screw;
Described inner core assembly is by interior pump barrel, lower travelling valve, be made up of the diverter valve of two independent flow passage, upper standing valve, and the lower end of described interior pump barrel is threaded lower travelling valve, and the lower end of lower travelling valve connects the upper end of diverter valve, and the lower end of diverter valve connects upper standing valve;
Described side direction feed pathway communicates with interior pump barrel, and is located at the below of standing valve, is provided with annular space between described outer pump barrel and interior pump barrel.
Described diverter valve is provided with radial passage and axial passage, and diverter valve upper end is provided with center hole, and lower end is provided with lower center hole, and described upper center hole and lower center hole are not communicated with interlayer;
Described radial passage is communicated with the bottom of upper center hole, and axial passage is connected with the top of lower center hole.
The lower end of described lower travelling valve is located at above the upper center hole of diverter valve.
The invention has the beneficial effects as follows: this movable barrel type provided by the invention divides to adopt and mixes out oil well pump, the plunger of outer pump can be used as the pump barrel of interior pump, and utilizing annular space between inside and outside pump barrel to complete into discharge opeing, liquid enters pump barrel by passages different separately and does not produce mutual interference.The geometrical length of pump shortens to 6.0m by 9.8m simultaneously, and bending resistance strengthens, and construction simple and convenient, be easy to field conduct.
Be described in further details below in conjunction with accompanying drawing.
Accompanying drawing explanation
Fig. 1 is that movable barrel type of the present invention divides the structural representation adopted and mix out oil well pump;
Fig. 2 is the structural representation of diverter valve;
Fig. 3 is upstroke process schematic of the present invention;
Fig. 4 is down stroke process schematic of the present invention.
In figure: 1, rod head; 2, outer pump barrel 4 box cupling; 3, upper travelling valve; 4, outer pump barrel; 5, plunger; 6, interior pump barrel; 7, lower travelling valve; 8, diverter valve; 9, upper standing valve; 10, side direction feed pathway; 11, screen casing; 12, lower standing valve; 13, lower contact; 14, radial passage; 15, axial passage; 16, upper center hole; 17, lower center hole; 18, plunger piston assembly; 19, outer pump barrel assembly.
Embodiment
Embodiment 1:
Present embodiments provide a kind of movable barrel type as shown in Figure 1 to divide to adopt and mix out oil well pump, be made up of outer pump barrel assembly 19, interior pump barrel assembly and plunger piston assembly 18, it is inner that interior pump barrel assembly is located at plunger piston assembly 18, and this plunger piston assembly is located at the inside of outer pump barrel assembly 19.
Outer pump barrel assembly 19 is made up of outer pump barrel box cupling 2, outer pump barrel 4, screen casing 11, lower contact 13 from top to bottom successively, screen casing 11 internal upper part is provided with side direction feed pathway 10, bottom is provided with lower standing valve 12, the lower end of outer pump barrel box cupling 2 is connected with the top of outer pump barrel 4, the bottom of outer pump barrel 4 is fixed with screen casing 11, and the lower end of lower standing valve 12 is connected with lower contact 13; Plunger piston assembly 18 is made up of rod head 1, plunger 5, upper travelling valve 3, and rod head 1 is connected with the upper end of upper travelling valve 3, and the lower end of upper travelling valve 3 is threaded with plunger 5; Inner core assembly is by interior pump barrel 6, lower travelling valve 7, be made up of the diverter valve 8 of two independent flow passage, upper standing valve 9, the lower end of interior pump barrel 6 is threaded lower travelling valve 7, the lower end of lower travelling valve 7 connects the upper end of diverter valve 8, and the lower end of diverter valve 8 connects upper standing valve 9; Wherein, side direction feed pathway 10 communicates with interior pump barrel 6, and is located at the below of standing valve 9, is provided with annular space between outer pump barrel 4 and interior pump barrel 6.
Working principle of the present invention: under the drive of pumping unit, pull bar drives plunger 5 to pump, complete respectively and pumping is carried out to the liquid of Different Strata, the annular space that lower floor's liquid is entered between interior pump barrel 6 and outer pump barrel 4 by lower standing valve 12 completes into discharge opeing, supernatant liquid is through screen casing 11, enter diverter valve 8 from side direction feed pathway 10 through upper standing valve 9, enter in inner core.
Namely plunger piston assembly is the plunger 5 of outer pump, is again the pump barrel of interior pump, utilize between inside and outside pump barrel 4 annular space completes feed liquor discharge opeing, pump geometrical length obviously shortens.Diverter valve 8 guarantees that each layer mixed solution is taken their own roads, packet by oil well two payzones separately, understratum production fluid enters outer pump barrel 4 by lower end, upper formation production fluid enters interior pump barrel 6 by side direction feed pathway 10, realize the fluid of outer pump pumping understratum, the fluid of interior pump pumping upper formation.
Working procedure of the present invention: as shown in Figure 3,4, movable barrel type is divided adopt and mix out oil well pump and packet and other accessories G.I.H in order, then base sealed packer, sealing oil cover annular space, under the drive of pumping unit, pull bar drives plunger 5 to pump, and in upstroke process, plunger 5 is up, lower standing valve 12 is opened, and lower floor's liquid enters the annular space between outer pump barrel 4 and interior pump barrel 6; Upper standing valve 9 is opened, and supernatant liquid enters interior pump barrel 6 by a runner of side direction feed pathway 10, liquid separatnig valve; Upper travelling valve 3 and lower travelling valve 7 are closed, thus realize the feed liquor on stratum.
In down stroke process, plunger 5 is descending, and lower standing valve 12 cuts out, and in outer pump barrel 4 and interior pump barrel 6 annular space, liquid is discharged after entering interior pump barrel 6 by another runner of liquid separatnig valve, and upper standing valve 9 cuts out, and in interior pump barrel 6, liquid is discharged; Lower travelling valve 7 is opened, and in outer pump barrel 4 and interior pump barrel 6 annular space, liquid is discharged, and upper travelling valve 3 is opened, and in interior pump barrel 6, liquid is discharged.So repeatedly, pumping discharge opeing process is completed.
Embodiment 2:
The present embodiment is on the basis of embodiment 1, as shown in Figure 2, diverter valve 8 is bridge-type working barrels, there is outside thread upper end, be provided with radial passage 14 and axial passage 15, diverter valve 8 upper end is provided with center hole 16, and lower end is provided with lower center hole 17, and upper center hole 16 and lower center hole 17 are not communicated with interlayer; Radial passage 14 is communicated with the bottom of upper center hole 16, and axial passage 15 is connected with the top of lower center hole 17, and the lower end of lower travelling valve 7 is located at above the upper center hole 16 of diverter valve 8.
In upstroke, plunger 5 is up, and lower standing valve 12 is opened lower floor's liquid and entered outer pump barrel 4 and interior pump barrel 6 annular space; Upper standing valve 9 is opened, and supernatant liquid enters interior pump barrel 6 by the axial passage 15 of side direction feed pathway 10, diverter valve 8; Upper travelling valve 3 and lower travelling valve 7 are closed, thus realize the feed liquor on stratum.
In down stroke process, plunger 5 is descending, lower standing valve 12 cuts out, upper standing valve 9 cuts out, because the radial passage 14 of diverter valve 8 is communicated with the bottom of upper center hole 16, the lower end of lower travelling valve 7 is located at above the upper center hole 16 of diverter valve 8, therefore open lower travelling valve 7, in outer pump barrel 4 and interior pump barrel 6 annular space, liquid is discharged after entering interior pump barrel 6 by the radial passage 14 of liquid separatnig valve; Upper travelling valve 3 is opened, and in interior pump barrel 6, liquid is discharged.So repeatedly, pumping discharge opeing process is completed.
When in pump normal productive process because upper and lower layers liquid enters pump barrel by respective passage, therefore do not produce mutual interference.
In sum, movable barrel type provided by the invention divides to adopt and mixes out oil well pump, the plunger 5 of outer pump is as the pump barrel of interior pump, decrease the length of pump, the two-way feed liquor of diverter valve 8 guarantees that each layer mixed solution is taken their own roads, do not interfere with each other, improve separate extracting pump pump detection period and well yield, overcome conventional separate extracting pump easy diastrophic problem under the impact of packer setting power.
The present embodiment does not have specifically described part all to belong to common practise and the known technology of the art, describes in detail no longer one by one herein.
More than exemplifying is only illustrate of the present invention, does not form the restriction to protection scope of the present invention, everyly all belongs within protection scope of the present invention with the same or analogous design of the present invention.
Claims (3)
1. a movable barrel type divides to adopt and mixes out oil well pump, it is characterized in that: be made up of outer pump barrel assembly (19), interior pump barrel assembly and plunger piston assembly (18), it is inner that described interior pump barrel assembly is located at plunger piston assembly (18), and this plunger piston assembly is located at the inside of outer pump barrel assembly (19);
Described outer pump barrel assembly (19) is made up of outer pump barrel box cupling (2), outer pump barrel (4), screen casing (11), lower contact (13) from top to bottom successively, described screen casing (11) internal upper part is provided with side direction feed pathway (10), bottom is provided with lower standing valve (12), the lower end of described outer pump barrel box cupling (2) is connected with the top of outer pump barrel (4), the bottom of outer pump barrel (4) is fixed with screen casing (11), and the lower end of described lower standing valve (12) is connected with lower contact (13);
Described plunger piston assembly is made up of pull bar, rod head (1), plunger (5), upper travelling valve (3), and described rod head (1) is connected with the upper end of upper travelling valve (3), and the lower end of upper travelling valve (3) is threaded with plunger (5);
Described inner core assembly (18) by interior pump barrel (6), lower travelling valve (7), have the diverter valve of two independent flow passage (8), upper standing valve (9) forms, the lower end of described interior pump barrel (6) is threaded lower travelling valve (7), the lower end of lower travelling valve (7) connects the upper end of diverter valve (8), and the lower end of diverter valve (8) connects upper standing valve (9);
Described side direction feed pathway (10) communicates with interior pump barrel (6), and is located at the below of standing valve (9), is provided with annular space between described outer pump barrel (4) and interior pump barrel (6).
2. a kind of movable barrel type according to claim 1 divides to adopt and mixes out oil well pump, it is characterized in that: described diverter valve (8) is provided with radial passage (14) and axial passage (15), diverter valve (8) upper end is provided with center hole (16), lower end is provided with lower center hole (17), and described upper center hole (16) and lower center hole (17) are not communicated with interlayer;
Described radial passage (14) is communicated with the bottom of upper center hole (16), and axial passage (15) is connected with the top of lower center hole (17).
3. a kind of movable barrel type according to claim 2 divides to adopt and mixes out oil well pump, it is characterized in that: upper center hole (16) top of diverter valve (8) is located in the lower end of described lower travelling valve (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410726062.0A CN104405626A (en) | 2014-12-04 | 2014-12-04 | Traveling barrel type separate mining/concurrent discharging oil-well pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410726062.0A CN104405626A (en) | 2014-12-04 | 2014-12-04 | Traveling barrel type separate mining/concurrent discharging oil-well pump |
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| Publication Number | Publication Date |
|---|---|
| CN104405626A true CN104405626A (en) | 2015-03-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410726062.0A Pending CN104405626A (en) | 2014-12-04 | 2014-12-04 | Traveling barrel type separate mining/concurrent discharging oil-well pump |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105089555A (en) * | 2015-07-14 | 2015-11-25 | 中国石油天然气股份有限公司 | Control valve assembly and using method thereof |
| CN109424529A (en) * | 2017-09-04 | 2019-03-05 | 中国石油化工股份有限公司 | There is the whole liquid oil well pump out of bar lifting |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6364633B1 (en) * | 2000-03-28 | 2002-04-02 | Melvin E. Kelly | Internally ported hydraulically actuated down-hole pump |
| CN2703897Y (en) * | 2004-06-03 | 2005-06-08 | 大庆石油管理局 | Split double-layer individual-pumping co-producing pump |
| CN200940558Y (en) * | 2006-07-20 | 2007-08-29 | 国营第三八八厂 | Split pumping and mixed output oil pump |
| CN101539133A (en) * | 2009-04-18 | 2009-09-23 | 陈飞 | Feedback type oil-well pump |
| CN101614202A (en) * | 2009-07-12 | 2009-12-30 | 黄健 | Double-deck defueling pump |
| WO2010104412A1 (en) * | 2009-03-12 | 2010-09-16 | Atlas Misbakhovich Badretdinov | Oil well plunger pumping |
| CN204458284U (en) * | 2014-12-04 | 2015-07-08 | 中国石油天然气股份有限公司 | A kind of movable barrel type divides to adopt and mixes out oil well pump |
-
2014
- 2014-12-04 CN CN201410726062.0A patent/CN104405626A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6364633B1 (en) * | 2000-03-28 | 2002-04-02 | Melvin E. Kelly | Internally ported hydraulically actuated down-hole pump |
| CN2703897Y (en) * | 2004-06-03 | 2005-06-08 | 大庆石油管理局 | Split double-layer individual-pumping co-producing pump |
| CN200940558Y (en) * | 2006-07-20 | 2007-08-29 | 国营第三八八厂 | Split pumping and mixed output oil pump |
| WO2010104412A1 (en) * | 2009-03-12 | 2010-09-16 | Atlas Misbakhovich Badretdinov | Oil well plunger pumping |
| CN101539133A (en) * | 2009-04-18 | 2009-09-23 | 陈飞 | Feedback type oil-well pump |
| CN101614202A (en) * | 2009-07-12 | 2009-12-30 | 黄健 | Double-deck defueling pump |
| CN204458284U (en) * | 2014-12-04 | 2015-07-08 | 中国石油天然气股份有限公司 | A kind of movable barrel type divides to adopt and mixes out oil well pump |
Non-Patent Citations (1)
| Title |
|---|
| 朱洪征等: "动筒式分采抽油泵研制与应用", 《石油矿场机械》, vol. 43, no. 6, 30 June 2014 (2014-06-30), pages 62 - 65 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105089555A (en) * | 2015-07-14 | 2015-11-25 | 中国石油天然气股份有限公司 | Control valve assembly and using method thereof |
| CN105089555B (en) * | 2015-07-14 | 2017-09-01 | 中国石油天然气股份有限公司 | Control valve component and its application method |
| CN109424529A (en) * | 2017-09-04 | 2019-03-05 | 中国石油化工股份有限公司 | There is the whole liquid oil well pump out of bar lifting |
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Application publication date: 20150311 |
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