CN2307931Y - Heat oil recovery oil-well pump - Google Patents
Heat oil recovery oil-well pump Download PDFInfo
- Publication number
- CN2307931Y CN2307931Y CN 97222630 CN97222630U CN2307931Y CN 2307931 Y CN2307931 Y CN 2307931Y CN 97222630 CN97222630 CN 97222630 CN 97222630 U CN97222630 U CN 97222630U CN 2307931 Y CN2307931 Y CN 2307931Y
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- CN
- China
- Prior art keywords
- pump
- valve
- oil
- plunger
- standing
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- Expired - Fee Related
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Abstract
The utility model discloses a heat oil recovery oil well pump, belonging to an oil well pump for the recovery of thick oil and altra-thick oil. The utility model is mainly composed of a pump barrel, a plunger, a hollow draw rod, an oil inlet valve system, an oil outlet valve system, etc. A standing valve of the pump is arranged at the upper part, and a traveling valve of the pump is arranged at the lower part, so that when the plunger is moved upwards and downwards, liquid can enter a pump chamber, and accordingly, the filling degree and the pumping efficiency of the pump can be enhanced; simultaneously, when the plunger is moved downwards or stops pumping, sand can be effectively prevented from sinking into the pump chamber, and sand clamping can be reduced. When the pump works, a cable or viscosity reducer is allowed passing through the pump and entering the lower part of the pump, so that the viscosity of crude oil at the lower part of the pump can be decreased, and the resistance for entering the pump can be reduced.
Description
The utility model relates to the rod pumping pump that uses in the petroleum production of a kind of oil field, is particularly suitable for viscous crude and super heavy oil recovery, belongs to the petroleum machinery class.
In existing technology, the tubing pump that is used for the oil pumping of viscous crude and super thick oil well on the oil field has a kind of electric heating oil well pump, is made up of parts such as pump barrel, plunger, hollow stem, traveling valve and standing valves.Standing valve is connected in hollow roofbolt lower end, and traveling valve is connected in hollow roofbolt upper end, and its working principle is the same with common oil well pump, and when plunger was up, traveling valve cut out, and standing valve is opened, and sucks liquid in the pump barrel; When plunger was descending, traveling valve was opened, and standing valve cuts out, drain in oil pipe.Because this pump has adopted the structure of hollow stem, when plunger upward and downward is finished oil pumping, allow cable from the intermediate hollow bar of pump, to pass through, with crude oil under the heat pump, reduce viscosity of crude.Though this pump has above-mentioned advantage, but also exist the problem of use aspect at work, for the low oil well of strata pressure, when plunger is up, enter the space that liquid volume in the pump chamber is abdicated when up less than plunger, make liquid be not fully filled pump chamber, cause the filling index of pump low, reduced pump efficiency.
The purpose of this utility model is to provide a kind of problem that can solve in the existing technology, and in the stroke up and down of pump plunger, liquid all can enter the oil recovery by heating oil well pump of pump chamber.This pump can improve pump efficiency and prevent the sand card of pump.
Oil recovery by heating oil well pump of the present utility model is by the standing valve system, formations such as traveling valve system, pump barrel, plunger and hollow draw-bar.This pump structure has adopted following new technological scheme:
(1), standing valve system: constitute by standing valve, fixed valve base, standing valve urceolus, elasticity valve bonnet, locking nut, load-carrying ring, different in nature hollow stem box cupling etc.Standing valve urceolus upper end is connected with upper connection, compresses load-carrying ring and elasticity valve bonnet simultaneously, and load-carrying ring plays and bears rod string load and position-limiting action, and the rise height of elasticity valve bonnet restriction standing valve plays the elastic buffer effect; Standing valve urceolus lower end is connected with box cupling on the pump, is fixed valve seat simultaneously.Standing valve is enclosed within on the hollow draw-bar.
(2), go up the hollow draw-bar upper end in the pump and connect special-shaped hollow stem box cupling, locking nut.Special-shaped hollow stem box cupling plays spacing and the effect that is connected with pump outer space core bar, and the locking nut effect is that standing valve is pressed into below the elasticity valve bonnet.Last hollow draw-bar links to each other by delivery connection with following hollow draw-bar, and following hollow draw-bar lower end is connected with following hollow draw-bar box cupling with traveling valve.Hollow draw-bar passes through from the centre of pump barrel, allows cable or viscosity depressant to pass through from the hollow draw-bar of pump, enters under the pump, reaches the purpose of crude oil reduction viscosity under the heat pump.
(3), the pump barrel upper end connects box cupling on the pump, box cupling under the lower end connection pump.
(4), the traveling valve system is made of the valve seat that moves about, traveling valve.Traveling valve is connected in down on the hollow draw-bar, and the valve seat that moves about is connected in the plunger lower end.
(5), the plunger upper end links to each other with the plunger upper connection, the lower end links to each other with the valve seat that moves about, and when plunger was up, traveling valve cut out standing valve and opens, liquid is discharged in the oil pipe in the pump chamber between from the standing valve to the plunger, and the liquid in the oil reservoir enters the pump barrel space that piston is abdicated simultaneously.During down stroke, under the acting in conjunction of head of liquid on frictional force, valve self gravitation and the pump of standing valve and last hollow draw-bar, standing valve cuts out.The standing valve bottom forms low-pressure chamber to the pump chamber between the plunger, adds the frictional force between plunger and pump barrel, causes traveling valve to be opened, and the liquid below the plunger in the pump chambers is by plunger, and delivery connection enters in the pump chamber above the plunger.Simultaneously, during up stroke, if oil reservoir liquid is not full of the pump barrel space that plunger is abdicated fully, during owing to down stroke, standing valve is a low-pressure chamber to the pump chamber of plunger, and the liquid in the oil reservoir is still flowed in pump chambers, thereby has increased the oil-feed time.
In technique scheme, all attachment portions are and are threaded.
The utility model has following technical characteristics owing to adopted technique scheme:
(1) standing valve is on the top of pump, and traveling valve is in the bottom of pump.
(2) standing valve has adopted the structure of annular valve, and the length with the pull bar sliding sealing surface of having extended, and has reduced the leakage in the workpiece, has increased working life.
The utility model compared with prior art advantage is to have increased the time that crude oil advances pump, all provides stratum liquid to advance the condition of pump in the stroke up and down of pump, thereby pump filling index is at work obviously improved.Simultaneously, when plunger was descending, standing valve cut out, and can prevent effectively that sand from sinking to pump chamber, had reduced the sand card between plunger and the pump barrel.
Below in conjunction with the given embodiment of accompanying drawing 1, the utility model is further described.
Accompanying drawing 1 is the structural representation of oil recovery by heating oil well pump.
Oil recovery by heating oil well pump concrete structure among the embodiment is: the upper end of top sub 1 is an oil pipe screw thread box thread, oil well pump is connected with oil pipe, the lower end is connected with standing valve urceolus 6, compress load-carrying ring 3 and elasticity valve bonnet 5 simultaneously, when plunger 15 is lowered in the pump barrel with hollow roofbolt, 2 of special-shaped hollow stem box cuplings that its upper and lower end is connected with last hollow draw-bar 10 with hollow stem respectively are on load-carrying ring 3, showing that roofbolt is transferred puts in place, at this moment the locking nut 4 that is connected hollow draw-bar 10 upper ends is pressed into standing valve 7 below the elasticity valve bonnet 5, box cupling 9 upper ends are connected with standing valve urceolus 6 on the pump, and be fixed valve seat 8, standing valve 7 is enclosed within on the hollow draw-bar 10, Spielpassung with it, when up stroke, standing valve rises, the rise height of elasticity valve bonnet 5 restriction standing valves, play the elastic buffer effect simultaneously, prolong the working life of valve and cover.During down stroke, in the frictional force of standing valve 7 with last hollow draw-bar 10, on valve self gravitation and the pump under the acting in conjunction of head of liquid, standing valve 7 cuts out, make the top formation low-pressure chamber of the bottom of standing valve 7 to plunger 15, add the frictional force of plunger 15 and pump barrel 12, make the traveling valve 17 that is connected with following hollow draw-bar 13 lower ends leave the fixed valve base 16 that is connected with plunger 15 lower ends, liquid enters above-mentioned low-pressure cavity under the pump thereby make, after traveling valve 17 leaves the valve seat 16 that moves about, the upper end is connected with last hollow draw-bar 10, the delivery connection 11 that the lower end is connected with following hollow draw-bar 13 is run into the plunger upper connection 14 that is connected with plunger 15 upper ends, forces plunger and hollow roofbolt DL synchronization.Standing valve, traveling valve is mechanical type and opens, make standing valve, traveling valve can in time be opened, can effectively prevent the generation of steam or natural gas lock phenomenon, the following hollow stem box cupling 18 that is connected with following hollow draw-bar 13 lower ends is equally arranged at the traveling valve bottom, its lower end is the hollow stem screw buckle, to connect hollow stem under the pump, the lower end of pump barrel 12 connects box cupling 19 under the pump barrel, box cupling 19 lower ends are oil pipe screw thread box thread under the pump barrel, when descending well operations, be connected the top sub 1 of one, load-carrying ring 3, elasticity valve bonnet 5, standing valve urceolus 6, fixed valve base 8, box cupling 9 on the pump, pump barrel 12, box cupling 20 is with in the oil pipe lower going-into-well under the pump barrel.Special-shaped hollow stem box cupling 2, locking nut 4, last hollow draw-bar 10, delivery connection 11, following hollow draw-bar 13, plunger upper connection 14, plunger 15, the valve seat 16 that moves about, traveling valve 17, lower hollow bar box cupling 18 are with in the hollow roofbolt lower going-into-well.Above-mentioned is connected to be with part and is threaded.
Claims (2)
1, a kind of oil recovery by heating oil well pump that is used for the thick oil well oil pumping, comprise pump barrel (12), plunger (15), go up hollow draw-bar (10), traveling valve (17), the valve seat that moves about (16), standing valve (7), fixed valve base parts such as (8), it is characterized in that: standing valve (7) is on the top of pump, traveling valve (17) is in the bottom of pump, standing valve (7) is the annular valve structure, the fine finishing slotted hole of the slipper seal of providing is provided in middle design, and traveling valve (17) is designed to cone table shape directly on following hollow draw-bar (13).
2, oil recovery by heating oil well pump according to claim 1 is characterized in that: standing valve cover (5) is a pawl spring formula elasticity valve bonnet, and the upper end is a positioning ring, and the lower end is shaped on circumferentially 4-6 uniform elasticity spring pawl, and spring radix unguis portion is a convex structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97222630 CN2307931Y (en) | 1997-09-04 | 1997-09-04 | Heat oil recovery oil-well pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97222630 CN2307931Y (en) | 1997-09-04 | 1997-09-04 | Heat oil recovery oil-well pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2307931Y true CN2307931Y (en) | 1999-02-17 |
Family
ID=33937647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97222630 Expired - Fee Related CN2307931Y (en) | 1997-09-04 | 1997-09-04 | Heat oil recovery oil-well pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2307931Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943161A (en) * | 2010-09-02 | 2011-01-12 | 白霞 | Waterable oil-well pump plunger |
| CN102352733A (en) * | 2011-10-17 | 2012-02-15 | 中国石油天然气股份有限公司 | Method for anchoring oil pipe of heavy oil well |
| CN106812686A (en) * | 2017-02-21 | 2017-06-09 | 中国石油化工股份有限公司 | Method is mixed under a kind of oil recovery hollow pump and hollow pump pump |
-
1997
- 1997-09-04 CN CN 97222630 patent/CN2307931Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101943161A (en) * | 2010-09-02 | 2011-01-12 | 白霞 | Waterable oil-well pump plunger |
| CN102352733A (en) * | 2011-10-17 | 2012-02-15 | 中国石油天然气股份有限公司 | Method for anchoring oil pipe of heavy oil well |
| CN102352733B (en) * | 2011-10-17 | 2014-08-06 | 中国石油天然气股份有限公司 | Method for anchoring oil pipe of heavy oil well |
| CN106812686A (en) * | 2017-02-21 | 2017-06-09 | 中国石油化工股份有限公司 | Method is mixed under a kind of oil recovery hollow pump and hollow pump pump |
| CN106812686B (en) * | 2017-02-21 | 2018-12-14 | 中国石油化工股份有限公司 | A kind of oil recovery hollow pump and hollow pump pump lower incorporation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |