CN2893220Y - Efficient energy-saving rod oil-well pump capable of positive well flushing - Google Patents
Efficient energy-saving rod oil-well pump capable of positive well flushing Download PDFInfo
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- CN2893220Y CN2893220Y CN 200520133719 CN200520133719U CN2893220Y CN 2893220 Y CN2893220 Y CN 2893220Y CN 200520133719 CN200520133719 CN 200520133719 CN 200520133719 U CN200520133719 U CN 200520133719U CN 2893220 Y CN2893220 Y CN 2893220Y
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Abstract
The utility model discloses an oil pump with high operation and energy efficiency that can conduct conventional well-flushing, comprising a connecting-tripping unit, a pull rod, a long plunger, a short pump cylinder, a fixing valve, fixing valve base hole-enlarging pipes, a long pump cylinder, a short plunger, a flow valve, hole-enlarging pipes of the cylinder lower part, a support of the short plunger with flow channel. The fixing valve is positioned above the long pump cylinder; the short plunger is positioned in the long pump cylinder and under the fixing valve; the flow valve is positioned on the short plunger; the pull rod is smaller than the long plunger in diameter; while the diameter of the hole-enlarging pipes of the cylinder lower part is larger than that of the long plunger. The utility model has the function of conventional well-flushing. When the short plunger is positioned on the support of the short plunger with flow channel, a liquid flow channel will be formed between the pull rod and the short pump cylinder, and between the short plunger and the hole-enlarging pipes of the cylinder lower part, thus considerably saves the operation cost under the well.
Description
Affiliated technical field
The utility model relates to the oil field rod pumping pump, the energy-efficient rod pumping pump of the positive well-flushing of particularly a kind of energy, positive steam injection, automatic draining.
Background technique
All oil field statistics from the whole world, nearly 80% oil well adopt the sucker-rod pumping machine to produce, and China has 92% oil well use sucker-rod pumping machine especially.Yet sucker-rod pumping machine system effectiveness is generally very low at present, from the foreign statistic data, pumping unit system efficient has only 28%～29%, and the pumping unit system efficient of more than 70,000 mouthful of well of China has only 25.96%, the oil-field oil pumper system effectiveness that has on average has only about 20%, and the pumping unit system efficient of even more serious is part oil well is less than 10%.How realizing energy-conservation under the prerequisite that satisfies the field output demand and improving sucker-rod pumping machine system effectiveness is the key subjects of pendulum in face of engineers and technicians.
People are successively carrying out a large amount of work aspect the improvement of sucker-rod pumping machine, motor improvement and the research of electric controlled energy saving device for this reason, and have obtained certain effect, and pumping unit system efficient also increases.Pumping unit system efficient brings up to 29.4% after 1065 mouthfuls of oil well applications new technologies of California, USA; Pumping unit system efficient brings up to 28.74% after 69 mouthfuls of oil well applications new technologies of China's Daqing oil field.
People improve in the pumping unit system Study on Efficiency carrying out, and seldom relate to rod pumping pump and how to realize energy-conservationly, that is to say never the rod pumping pump that surpasses one-hundred-year history as energy-conservation breach.
The applicant has invented a kind of energy-efficient rod pumping pump for this reason, this number of patent application is 200520114355.X, this patent application can reduce pumping unit upstroke load, reduce pumping unit down stroke resistance, has improved the oil well pump pump efficiency, has improved pumping unit system efficient; Reduced gas simultaneously to the influence of pump efficiency and have a sand controlling result; Also reduce the friction between rod sag and sucker rod and the oil pipe, prolonged sucker rod working life greatly.
Fig. 1 shows the energy-efficient rod pumping pump of utility model patent 200520114355.X, and this energy-efficient rod pumping pump comprises sucker rod 1, sleeve pipe 2, producing fluid level 3, oil pipe 4, artificial bottom of a well 5, traveling valve 6, short column plug lower end surface 7, short column plug 8, long pump barrel 9, long-plunger 10, short pump barrel 11, standing valve 12, uncoupling mechanism 13, fixed valve base 14, pump chamber 15, traveling valve passage 16, standing valve passage 17.Described long pump barrel 9 links to each other with top oil pipe 4; Described fixed valve base 14 is positioned at the top of long pump barrel 9 and interconnects; Described standing valve 12 is seated on the fixed valve base 14; Described short column plug 8 is positioned at the inside of long pump barrel 9, and can be up and down in long pump barrel 9, and its short column plug 8 tops link to each other with long-plunger 10; Described traveling valve 6 is seated on the short column plug 8.Described uncoupling mechanism 13 is used to connect or disconnects sucker rod 1 and long-plunger 10; Described short pump barrel 11 links to each other with fixed valve base 14, and long-plunger 10 can move up and down from its center hole.
But this pump is the same with conventional oil well pump, the function that does not possess positive well-flushing, do not possess the function of annotating vapour or hot-water flooding from oil pipe, promptly inject vapour or inject hot water from oil well, the function of returning out from oil sets annular space then, do not possess the function of just injecting other fluids from oil pipe yet, can't produce hydraulic pressure feeding back downlink power, with conventional big pump is the same does not have the crude oil pollution well head must use oil drainer to guarantee operation the time.
The model utility content
The utility model proposes the energy-efficient rod pumping pump of the positive well-flushing of a kind of energy, it comprises uncoupling mechanism 25, pull bar 26, long-plunger 27, short pump barrel 28, standing valve 29, standing valve pedestal expansion tube 30, long pump barrel 31, short column plug 38, traveling valve 39, pump barrel bottom expansion tube 34, has the short column plug support 35 of flow channel; The relative big slightly standing valve pedestal expansion tube 30 with internal diameter in described long pump barrel 31 its tops links to each other, and also relative with the internal diameter big slightly pump barrel bottom expansion tube 34 in its underpart links to each other; Described standing valve 29 is seated on the fixed valve base 41, and described fixed valve base 41 is positioned at the top of long pump barrel 31 and links together with standing valve pedestal expansion tube 30; Described short column plug 38 is positioned at the inside of long pump barrel 31, and its top links to each other with long-plunger 27; Described traveling valve 39 is seated in the short column plug 38; Described short pump barrel 28 links to each other with fixed valve base 41; Described long-plunger 27 can move up and down from these short pump barrel 28 center holes; Described pull bar 26 its underparts link to each other with long-plunger 27, and its top links to each other with uncoupling mechanism 25; It is characterized in that: when short column plug 38 was located in the short column plug support 35 with flow channel, described pull bar 26 formed the flow channel that injects fluids with short pump barrel 28 and described short column plug 38 with pump barrel bottom expansion tube 34.
The energy-efficient rod pumping pump of the positive well-flushing of a kind of energy that the utility model proposes can be realized positive well-flushing function.As: can under the situation of polluted reservoir not, realize the wax deposition in the Rapid Cleaning oil pipe, the fouling in the Rapid Cleaning oil pipe; Can under the situation of fixed tubular column, realize annotating vapour or hot-water flooding, carry out thickened oil steam-stimulated exploitation as steam injection from oil pipe; Can under the situation of fixed tubular column, realize just injecting other fluids, as carry out measures such as de-plugging of well or oil well acidation; Can realize automatic draining without oil drainer; The hydraulic pressure feedback that can also utilize area difference between long-plunger and the pull bar and whole oil pipe head of liquid to realize descending process.
This pump still keeps all advantages of energy-efficient rod pumping pump, can utilize the pump intake pressure of pump to realize the reduction of sucker rod load in the pumping unit upstroke process, thereby reach the rod pumping pump purpose of energy saving; Still can reduce the descending resistance of short column plug, add hydraulic pressure feedback function of the present utility model, can realize the without hindrance descending of pump or initiatively descending, thereby can avoid rod sag and rub partially, also can avoid uncoupling mechanism to free voluntarily; This pump also has the raising pump efficiency, prevents gas lock, avoids the characteristics of plunger sand card.
Description of drawings
Fig. 1 is utility model patent 200520114355.X energy-efficient rod pumping pump schematic representation.
Fig. 2 is the utility model first mode of execution situation schematic representation of normally pumping.
Fig. 3 is just injecting the situation schematic representation for the utility model first mode of execution.
Fig. 4 is the utility model second mode of execution situation schematic representation of normally pumping.
Fig. 5 is just injecting the situation schematic representation for the utility model second mode of execution.
Fig. 6 is the utility model the 3rd mode of execution situation schematic representation of normally pumping.
Fig. 7 is just injecting the situation schematic representation for the utility model the 3rd mode of execution.
Embodiment
Below in conjunction with accompanying drawing preferred implementation of the present utility model is described in detail, for easy, identical or similar parts are represented with identical reference character.
First mode of execution:
Fig. 2 is the energy-efficient rod pumping pump first mode of execution schematic representation of the positive well-flushing of the utility model energy.Just the energy-efficient rod pumping pump of well-flushing comprises sucker rod 21, sleeve pipe 22, producing fluid level 23, oil pipe 24, uncoupling mechanism 25, pull bar 26, long-plunger 27, short pump barrel 28, standing valve 29, standing valve pedestal expansion tube 30, long pump barrel 31, stratum 32, pump chamber 33, pump barrel bottom expansion tube 34, short column plug with flow channel supports 35 for this, artificial bottom of a well 36, short column plug lower end surface 37, short column plug 38, traveling valve 39, standing valve passage 40, fixed valve base 41.Described long pump barrel 31 tops link to each other with standing valve pedestal expansion tube 30, the bottom links to each other with pump barrel bottom expansion tube 34; Described fixed valve base 41 is positioned at the top of long pump barrel 31 and interconnects; Described standing valve 29 is seated on the fixed valve base 41; Described short column plug 38 is positioned at the inside of long pump barrel 31, and can be up and down in long pump barrel 31, and short column plug 38 tops link to each other with long-plunger 27; Described traveling valve 39 is seated on the short column plug 38; Described uncoupling mechanism 25 is used to connect or disconnects sucker rod 21 and pull bar 26; Described short pump barrel 28 links to each other with fixed valve base 41, and long-plunger 27 can move up and down from its center hole; The bottom of described pull bar 26 links to each other with long-plunger 27, and its top links to each other with disconnection mechanism 25.
The utility model is the energy-efficient rod pumping pump of well-flushing just, different fully with conventional rod pumping pump on traveling valve and standing valve relative space position, no longer standing valve is placed the pump barrel bottom and traveling valve and plunger are placed the top of standing valve as conventional rod pumping pump, but standing valve 29 and fixed valve base 41 are placed the top of long pump barrel 31, and traveling valve 39 and short column plug 38 are placed the below of standing valve 29.
The energy-efficient rod pumping pump of the positive well-flushing of the utility model energy and the difference of the disclosed energy-efficient rod pumping pump of patent 200520114355.X are:
1) since the diameter of pull bar 26 less than the diameter of short pump barrel 28, there is the slit in the two when cooperating, this slit is flow channel, utilize this flow channel between pull bar 26 and the short pump barrel 28, utilize the flow channel between short column plug 38 and the pump barrel bottom expansion tube 34 simultaneously, under the situation of fixed tubular column, just can realize positive well-flushing, just annotate vapour, positive hot-water flooding, just annotate the function of other fluids;
2) diameter of long-plunger 27 is greater than the diameter of pull bar 26, if the diameter of long-plunger 27 equals the diameter of pull bar 26, then the diameter 27 of long-plunger can be realized the hydraulic pressure feedback this moment greater than the diameter of sucker rod 21, realizes that pump is without hindrance descending or initiatively descending;
3) in order to use the valve ball of larger diameter as far as possible, the diameter of standing valve pedestal expansion tube 30 perhaps is not less than the diameter of long pump barrel 31 at least generally greater than the diameter of long pump barrel 31;
4) can adopt a plurality of valve ball modes on the same valve road of traveling valve 39 and/or standing valve 29, to reduce the possibility of pump leakage.
How following surface analysis the utility model realizes positive well-flushing, positive function of injecting.
Fig. 3 has provided model utility first mode of execution and has just injected the situation schematic representation.As can be seen from Figure 3, positive if desired well-flushing or just injecting, then need short column plug 38, long-plunger 27 are transferred a segment distance together with sucker rod 21, the short column plug that short column plug 38 is located have flow channel supports on 35, this moment, long-plunger 27 was also deviate from short pump barrel 28, and pull bar 26 then enters short pump barrel 28 positions fully.Owing to the diameter of short column plug 38 diameters, so there is flow channel between short column plug 38 and the pump barrel bottom expansion tube 34 less than pump barrel bottom expansion tube 34; Because pull bar 26 diameters are less than long-plunger 27 diameters, be that pull bar 26 diameters are less than short pump barrel 28 internal diameters, thereby the flow channel that also has fluid between pull bar 26 and the short pump barrel 28, work as flushing fluid, steam, hot water or other fluids are when oil pipe injects, the fluid that injects just flows through from the gap location between pull bar 26 and the short pump barrel 28, in the spacer ring of short column plug 38 and pump barrel bottom expansion tube 34, flow through again, flow to oil sets annular space then, can realize positive well-flushing this moment, just annotating vapour, positive hot-water flooding or other fluids, after just injection work is finished, can on carry sucker rod and make the pump proper functioning.
The utility model can be realized the wax deposition in the Rapid Cleaning oil pipe, the fouling in the Rapid Cleaning oil pipe under the situation of polluted reservoir not; Can under the situation of fixed tubular column, realize annotating vapour or hot-water flooding, carry out thickened oil steam-stimulated exploitation as steam injection from oil pipe; Can under the situation of fixed tubular column, realize just injecting other fluids, as carry out measures such as de-plugging of well or oil well acidation; The hydraulic pressure feedback that can also utilize area difference between long-plunger and the pull bar and whole oil pipe head of liquid to realize descending process.
How following surface analysis the utility model realizes the function of automatic draining.
The same with situation recited above, when needing operation, short column plug 38 is located the short column plug with flow channel supports on 35, for draining provides flow channel, the fluid in the oil pipe will be back to oil sets annular space automatically.
How following surface analysis the utility model realizes hydraulic pressure feedback function and without hindrance descending.
Conventional oil well pump is when descending, because the sucker rod lower end surface runs into very big resistance, its descending resistance=sucker rod sectional area * whole oil pipe head of liquid, and the utility model is the same with the disclosed energy-efficient rod pumping pump of patent application 200520114355.X, its descending resistance that runs in short column plug lower end surface reduces greatly, the pump intake pressure of its descending resistance=sucker rod sectional area * pump, this is less than whole oil pipe head of liquid because of pump intake pressure.Because long-plunger 27 diameters of the present utility model when down stroke, can produce a hydraulic pressure feedback force, the poor * whole oil pipe head of liquid of its hydraulic pressure feedback force=long-plunger sectional area and pull bar sectional area greater than the diameter of pull bar 26.When resistance that the hydraulic pressure feedback force runs into more than or equal to short column plug lower end surface, just can realize without hindrance descending or initiatively descending.
Second mode of execution.
Fig. 4 is the utility model second mode of execution situation schematic representation of normally pumping, and Fig. 5 is just injecting the situation schematic representation for the utility model second mode of execution.From Fig. 4,5 as can be seen, second mode of execution has just changed pull bar 26, for first mode of execution, the pull bar 26 of second mode of execution is no longer done the requirement that diminishes to the diameter of pull bar, but on pull bar 26, have groove 261, its slotting length is greater than the length of short pump barrel 28, makes the flow channel that has fluid between pull bar 26 and the short pump barrel 28, for positive well-flushing, just inject and draining provides the flow channel of fluid.
The 3rd mode of execution.
Fig. 6 is the utility model the 3rd mode of execution situation schematic representation of normally pumping, and Fig. 7 is just injecting the situation schematic representation for the utility model the 3rd mode of execution.From Fig. 6,7 as can be seen, the third mode of execution also is to have changed pull bar, for first mode of execution, the pull bar 26 of second mode of execution is also no longer done the requirement that diminishes to the diameter of pull bar, but on pull bar, open center hole 263 and on the top of pull bar, upright opening 262 is opened in the bottom, 264, upright opening 262,264 communicate with center hole 263, on, following upright opening 262,264 distance is greater than the length of short pump barrel 28, make the hole 262 on the pull bar, 263,264 become the flow channel of fluid, thereby are positive well-flushing, just injecting the flow channel that fluid is provided with draining.
Adopt pump barrel and plunger fit tolerance to seal between the short pump barrel 28 of the energy-efficient rod pumping pump of the positive well-flushing of the utility model energy and the long-plunger 27.Described short pump barrel 28 is the soft seal pipe nipple, and long-plunger 27 can be used the sealing sucker rod instead.Can perforate on the tube wall of pump barrel bottom expansion tube 34.The diameter of described long-plunger 27 is greater than the diameter of pull bar 26.
The utility model is not limited to above-mentioned mode of execution, above-mentioned preferred implementation only is exemplary, those skilled in the art can make the various modifications that are equal to and replacement and various combination, and obtain different mode of executions according to spirit of the present utility model.
Claims (12)
1, the energy-efficient rod pumping pump of the positive well-flushing of a kind of energy, it comprises uncoupling mechanism (25), pull bar (26), long-plunger (27), short pump barrel (28), standing valve (29), standing valve pedestal expansion tube (30), long pump barrel (31), short column plug (38), traveling valve (39), pump barrel bottom expansion tube (34), has the short column plug support (35) of flow channel; The relative big slightly standing valve pedestal expansion tube (30) with internal diameter in its top of described long pump barrel (31) links to each other, and also relative with the internal diameter big slightly pump barrel bottom expansion tube (34) in its underpart links to each other; Described standing valve (29) is seated on the fixed valve base (41), and described fixed valve base (41) is positioned at the top of long pump barrel (31) and links together with standing valve pedestal expansion tube (30); Described short column plug (38) is positioned at the inside of long pump barrel (31), and its top links to each other with long-plunger (27); Described traveling valve (39) is seated in the short column plug (38); Described short pump barrel (28) links to each other with fixed valve base (41); Described long-plunger (27) can move up and down from this short pump barrel (28) center hole; Described pull bar (26) its underpart links to each other with long-plunger (27), and its top links to each other with uncoupling mechanism (25); It is characterized in that: when short column plug (38) is located the short column plug with flow channel when supporting (35) and going up, described pull bar (26) and short pump barrel (28) and described short column plug (38) and pump barrel bottom expansion tube (34) form the flow channel of injection fluid.
2, the energy-efficient rod pumping pump of the positive well-flushing of energy according to claim 1 is characterized in that the described traveling valve (39) that is seated on the short column plug (38) is an oiling valve, and the standing valve (29) that is seated on the fixed valve base (41) is an outlet valve.
3, the energy-efficient rod pumping pump of the positive well-flushing of energy according to claim 1 is characterized in that adopting between described short pump barrel (28) and the long-plunger (27) pump barrel and plunger fit tolerance to seal.
4, according to the energy-efficient rod pumping pump of claim 1 or the positive well-flushing of 3 described energy, it is characterized in that described short pump barrel (28) is the soft seal pipe nipple, long-plunger (27) can be used the sealing polished rod instead.
5, the energy-efficient rod pumping pump of the positive well-flushing of energy according to claim 1 is characterized in that the diameter of the diameter of described pull bar (26) less than short pump barrel (28), and the two exists slit, this slit to be the flow channel that injects fluid when cooperating.
6, the energy-efficient rod pumping pump of well-flushing just according to claim 1 or 5, it is characterized in that on pull bar (26), having groove (261), its slotting length is greater than the length of short pump barrel (28), makes the flow channel that has fluid between the groove (261) of pull bar and the short pump barrel (28).
7, the energy-efficient rod pumping pump of well-flushing just according to claim 1 or 5, it is characterized in that on described pull bar (26), opening center hole (263) and open upright opening (262,264) in the upper and lower of pull bar (26), upright opening communicates with center hole, the distance of upright opening is greater than the length of short pump barrel (28) up and down, makes the hole (262,263,264) of pull bar have the flow channel of fluid.
8, the energy-efficient rod pumping pump of the positive well-flushing of energy according to claim 1 is characterized in that the diameter of the diameter of pump barrel bottom expansion tube (34) greater than long pump barrel (31).
9, the energy-efficient rod pumping pump of the positive well-flushing of energy according to claim 1 is characterized in that the diameter of pump barrel bottom expansion tube (34) can equal the diameter of long pump barrel (31), and this moment can be in the tube wall top perforate of pump barrel bottom expansion tube (34).
10, the energy-efficient rod pumping pump of the positive well-flushing of energy according to claim 1 is characterized in that the diameter of the diameter of described long-plunger (27) greater than pull bar (26), also greater than the diameter of sucker rod (21).
11, the energy-efficient rod pumping pump of the positive well-flushing of energy according to claim 1 is characterized in that described traveling valve (39) takes the structure of at least one valve ball.
12, the energy-efficient rod pumping pump of the positive well-flushing of energy according to claim 1 is characterized in that described standing valve (29) can constitute for uniform a plurality of valves, and same valve is made of at least one valve ball on the road.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520133719 CN2893220Y (en) | 2005-10-16 | 2005-10-16 | Efficient energy-saving rod oil-well pump capable of positive well flushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520133719 CN2893220Y (en) | 2005-10-16 | 2005-10-16 | Efficient energy-saving rod oil-well pump capable of positive well flushing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2893220Y true CN2893220Y (en) | 2007-04-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520133719 Expired - Fee Related CN2893220Y (en) | 2005-10-16 | 2005-10-16 | Efficient energy-saving rod oil-well pump capable of positive well flushing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2893220Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008083522A1 (en) * | 2007-01-11 | 2008-07-17 | Jianjun Ling | A rod pump used for eliminating eccentric rod wear and providing forward well-flushing |
| CN101446186B (en) * | 2009-01-04 | 2011-10-12 | 北京惠博普能源技术有限责任公司 | An phase-change type energy saving and environment protective oil pumping machine converting carbonic anhydride by using heat energy |
| CN109577915A (en) * | 2018-11-02 | 2019-04-05 | 中国石油天然气股份有限公司 | Compensation Antipollution well-washing device and pumping and washing process |
-
2005
- 2005-10-16 CN CN 200520133719 patent/CN2893220Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008083522A1 (en) * | 2007-01-11 | 2008-07-17 | Jianjun Ling | A rod pump used for eliminating eccentric rod wear and providing forward well-flushing |
| CN101446186B (en) * | 2009-01-04 | 2011-10-12 | 北京惠博普能源技术有限责任公司 | An phase-change type energy saving and environment protective oil pumping machine converting carbonic anhydride by using heat energy |
| CN109577915A (en) * | 2018-11-02 | 2019-04-05 | 中国石油天然气股份有限公司 | Compensation Antipollution well-washing device and pumping and washing process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070425 Termination date: 20111016 |