CN2846799Y - High efficiency energy saving thick oil pump with rod - Google Patents
High efficiency energy saving thick oil pump with rod Download PDFInfo
- Publication number
- CN2846799Y CN2846799Y CN 200520114995 CN200520114995U CN2846799Y CN 2846799 Y CN2846799 Y CN 2846799Y CN 200520114995 CN200520114995 CN 200520114995 CN 200520114995 U CN200520114995 U CN 200520114995U CN 2846799 Y CN2846799 Y CN 2846799Y
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- plunger
- pump
- valve
- energy
- pump barrel
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Abstract
The utility model discloses a high efficiency energy saving thick oil pump with rods, which comprises a polished rod, an oil pipe, a traveling valve, a plunger, a pump barrel, a sealing polished rod, a sealing short piece, a fixed vale, a disconnecting and connecting mechanism and a fixed valve seat. The utility model is characterized in that the fixed valve is positioned at the top part of the pump barrel, the traveling valve is arranged below the fixed valve seat, the middle of the pump barrel is provided with a section of a major diameter pump barrel with a prolonged inner diameter and a spring push rod is arranged and fixed in a passage of the fixed valve. Stratum fluid generates upward force to the plunger to realize the energy saving of the oil pumping machine, and under the double action of the upward inertial force of stratum fluid and the active downward capturing force of the plunger, the pumping efficiency is enhanced. The pump can satisfy the requirements of steam stimulation or steam oil driving wells for steam injection and oil extraction and can also realize the process engineering of acidification, blockage removal, paraffin removal, scale removal, etc. under the condition of not moving pipe columns of oil wells.
Description
Affiliated technical field
The utility model relate to thickened oil steam-stimulated or the steam flooding oil well is used have the bar suction pump energy-conservation, have bar suction pump pump efficiency to improve and pumping unit system efficient improves particularly a kind of energy-efficient bar suction pump that has.
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 doing 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.
Chinese patent ZL99109780.7 or its U.S. Pat 6640896B1 of the same clan disclose a kind of rod pump mechanical oil production technology parameter determination method, it has proposed the various power calculation methods of pumping unit all system first, can calculate under the various hole condition conditions, the pumping unit system efficient under the various oil production technology parameters combination, optimizing the high or the most higher oil production technology parameters combination of system effectiveness, thereby can improve sucker-rod pumping machine system effectiveness significantly.From the field conduct situation, implement this patent after most of oil well still can maintain original output, but because jig frequency reduces and to have caused many oil well outputs to descend or producing fluid level rises, this is the unacceptable fact to patent applying unit oil recovery factory.Can't realize improving in real time the fact of pumping unit system efficient according to change of production at present technology, patent of invention 200510079999.4 discloses and can change method and the device that improves pumping unit system efficient in real time according to oil well output, utility model patent 200520110861.1 discloses the multistage jig frequency controlling device of pumping unit, patent of invention 200510083838.2 discloses pumping unit stroke regulating method and device, and utility model patent 200520113709.9 discloses pumping unit stroke controlling device.
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.Utility model patent 200520114355.X discloses a kind of energy-efficient rod pumping pump for this reason, and this patent has proposed rod pumping pump first, and to utilize stratum energy be that the stratum flowing pressure realizes that polished rod load reduces and the method for oil pump energy-saving.
Fig. 1 has showed the disclosed a kind of energy-efficient rod pumping pump schematic representation of utility model patent 200520114355.X.Energy-efficient rod pumping pump comprises polished rod 1, sleeve pipe 2, producing fluid level 3, oil pipe 4, stratum 5, artificial bottom of a well 6, traveling valve 7, plunger lower end surface 8, plunger 9, pump barrel 10, sealing polished rod 11, packoff nipple 12, standing valve 13, uncoupling mechanism 14, fixed valve base 15, pump chamber 16, traveling valve passage 17, standing valve passage 18.Described pump barrel 10 links to each other with top oil pipe 4; Described fixed valve base 15 is positioned at the top of pump barrel 10 and interconnects; Described standing valve 13 is seated on the fixed valve base 15; Described plunger 9 is positioned at the inside of pump barrel 10, and can be up and down in pump barrel 10, and its plunger 9 tops link to each other with sealing polished rod 11; Described traveling valve 7 is seated on the plunger 9; Described uncoupling mechanism 14 is used to connect or disconnects polished rod 1 and sealing polished rod 11; Described packoff nipple 12 links to each other with fixed valve base 15, and sealing polished rod 11 can move up and down from its center hole.The maximum characteristics of this model utility are exactly no longer standing valve to be 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 13 and fixed valve base 15 are placed the top of pump barrel 10, and traveling valve 7 and plunger 9 are placed the below of standing valve 13.
Be how to utilize stratum energy to realize analyzing of energy-conservation and raising pump efficiency to utility model patent 200520114355.X below.
Because traveling valve 7 and plunger 9 are positioned at the below of standing valve 13, the lower end surface 8 of plunger 9 contacts with the fluid that flow out on the stratum for a long time, and the pressure at 8 places, lower end surface of plunger 9 equals annular space head of liquid and casing pressure sum.During upstroke, because traveling valve 7 cuts out, the pressure at 8 places, plunger lower end surface will produce a thrust that makes progress to it, thereby can reduce the polished rod load in the upstroke process, realize the rod pumping pump purpose of energy saving.Formation fluid enters the pump chamber 16 of energy-efficient rod pumping pump by traveling valve 7, and this point is also different fully with conventional rod pumping pump.For conventional rod pumping pump, formation fluid enters pump chamber by standing valve.Because this model utility is by descending traveling valve 7 influent stream bodies, no longer need pressure reduction ability influent stream body as conventional rod pumping pump, but the up inertial force of oil pipe oil stream and the double action of the initiatively downward capture ability of plunger have been utilized, realize the high filling index of pump chamber 16, thereby improved pump efficiency.
The disclosed a kind of energy-efficient rod pumping pump of utility model patent 200520114355.X can't adapt to thickened oil steam-stimulated well, that is to say and can't realize annotating the demand that vapour can recover the oil again under the prerequisite of fixed tubular column.
The model utility content
The utility model proposes a kind of energy-efficient bar suction pump that has, it can realize annotating vapour, oil recovery under the situation of fixed tubular column; Can utilize stratum energy, promptly the stratum flowing pressure produces a thrust that makes progress to plunger, realizes the reduction of the polished rod load in the pumping unit upstroke process, thereby reach bar suction pump purpose of energy saving is arranged; The double action that can also utilize oil pipe oil to flow up inertial force and the initiatively downward capture ability of plunger reaches the high filling index of pump chamber, realizes having the pump efficiency of bar suction pump to improve.
The utility model is to realize like this, on the basis of the disclosed a kind of energy-efficient rod pumping pump of utility model patent 200520114355.X, increase a spring spindle, increase a big footpath pump barrel on the top of pump barrel again), when needing to annotate vapour, by on carry polished rod plunger mentioned in the pump barrel of big footpath from pump barrel, and spring spindle upwards pushed away up to the valve ball standing valve push away valve seat, this moment, standing valve was in normally open, between plunger and the big footpath pump barrel annular space has just been arranged, thereby supplied passage for annotating stripping.When needing to recover the oil, by transferring polished rod plunger is put back in the pump barrel from big footpath pump barrel, this moment, spring spindle did not produce any effect to the valve ball of standing valve.
Because traveling valve and plunger are positioned at the below of standing valve, the lower end surface of plunger contacts with the fluid that flow out on the stratum for a long time, during upstroke, because traveling valve cuts out, the stratum flowing pressure will produce a thrust that makes progress to the plunger lower end surface, thereby can reduce the polished rod load in the upstroke process, reaching has bar suction pump purpose of energy saving.The bar suction pump is arranged is by descending traveling valve influent stream body because this is energy-efficient, no longer need pressure reduction ability influent stream body as conventional rod pumping pump, but utilized the up inertial force of oil pipe oil stream and the double action of the initiatively downward capture ability of plunger, realized that the high filling index of pump chamber and pump efficiency improve.
Description of drawings
Fig. 1 is the energy-efficient rod pumping pump schematic representation of utility model patent 200520114355.X;
Fig. 2 has bar suction pump schematic representation for the utility model is energy-efficient;
Fig. 3 has second kind of mode of execution schematic representation of bar suction pump for the utility model is energy-efficient.
Embodiment
Fig. 2 has bar suction pump schematic representation for the utility model is energy-efficient.Energy-efficient have the bar suction pump to comprise polished rod 21, sleeve pipe 22, producing fluid level 23, oil pipe 24, stratum 25, artificial bottom of a well 26, traveling valve 27, plunger lower end surface 28, plunger 29, pump barrel 30, sealing polished rod 31, packoff nipple 32, standing valve 33, uncoupling mechanism 34, fixed valve base 35, big footpath pump barrel 36, traveling valve passage 37, standing valve passage 38, spring spindle 39.Described big footpath pump barrel 36 is one section part that internal diameter amplifies in the middle of the pump barrel 30; Described spring spindle 39 its upper ends are positioned at standing valve passage 38, and its underpart is terminal to be connected with spring, and spring can link to each other with the lower end surface or the pump barrel of fixed valve base; Described fixed valve base 35 is positioned at the top of pump barrel 30, and fixed valve base 35 interconnects with pump barrel 30; Described standing valve 33 is seated on the fixed valve base 35; Described plunger 29 is positioned at the inside of pump barrel 30, and can be up and down in pump barrel 30, and plunger 29 tops link to each other with sealing polished rod 31; Described traveling valve 27 is seated on the plunger 29; Described uncoupling mechanism 34 is used to connect or disconnects polished rod 21 and sealing polished rod 31; Described packoff nipple 32 links to each other with fixed valve base 35, and sealing polished rod 31 can move up and down from its center hole.
The utility model is energy-efficient to have the bar suction pump 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 33 and fixed valve base 35 are placed the top of pump barrel 30, and traveling valve 27 and plunger 29 are placed the below of standing valve 33.
At first under the fixed tubular column situation, how realizing annotating vapour and oil recovery is analyzed.On the basis of the energy-efficient rod pumping pump of utility model patent 200520114355.X, increase a spring spindle, increase a big footpath pump barrel on the top of pump barrel again, when needing to annotate vapour, by on carry polished rod 31 plunger 29 mentioned in the big footpath pump barrel 36 from pump barrel 30, and spring spindle 39 upwards pushed away, up to the valve ball of fixed valve base 35 is pushed away valve seat, this moment, standing valve was in normally open, between plunger and the big footpath pump barrel annular space has just been arranged, thereby supplied passage for annotating stripping.When needing to recover the oil, by transferring polished rod 31 plunger 29 is put back in the pump barrel 30 from big footpath pump barrel 36, this moment, spring spindle 39 did not produce any effect to the valve ball of fixed valve base 35.
To how to utilize the stratum energy realization is energy-conservation to be analyzed with the raising pump efficiency again.Because traveling valve 27 and plunger 29 are positioned at the below of standing valve 33, the lower end surface 28 of plunger 29 contacts with the fluid that flow out on the stratum for a long time, and the pressure at 28 places, lower end surface of plunger 29 equals annular space head of liquid and casing pressure sum.During upstroke, because traveling valve 27 cuts out, the pressure at 28 places, plunger lower end surface will produce a thrust that makes progress to it, thereby can reduce the polished rod load in the upstroke process, realize the rod pumping pump purpose of energy saving.
Formation fluid enters the pump chamber of energy-efficient suction pump by traveling valve 27, and this point is also different fully with conventional rod pumping pump.For conventional rod pumping pump, formation fluid enters pump chamber by standing valve.The bar suction pump is arranged is by descending traveling valve 27 influent stream bodies because the utility model is energy-efficient, no longer need pressure reduction ability influent stream body as conventional rod pumping pump, but the up inertial force of oil pipe oil stream and the double action of the initiatively downward capture ability of plunger have been utilized, realize the high filling index of pump chamber, thereby improved pump efficiency.
The oiling valve of bar suction pump is arranged is traveling valve 27 because the utility model is energy-efficient, the descending beginning of plunger 29 moment, traveling valve 27 as oiling valve is opened at once, it is 29 descending moments of plunger, because valve ball can not be immediately under action of inertia and the plunger DL synchronization, different with the standing valve formula oiling valve of conventional rod pumping pump, the oiling valve of conventional rod pumping pump needs pressure reduction just can open, so the utility model is energy-efficient has the traveling valve 27 of the oiling valve of bar suction pump to open more rapidly in time.When 29 up beginning moments of plunger, close immediately as the traveling valve 27 of oiling valve, because traveling valve 27 is still downward in action of gravity, plunger 29 is swerved up, under two power comprehensive functions in opposite directions, traveling valve 27 sets on valve seat very soon.Different with the standing valve formula oiling valve of conventional rod pumping pump, traveling valve 27 is to cut out automatically under the self gravitation effect, so the energy-efficient traveling valve 27 that the oiling valve of bar suction pump arranged of the utility model cuts out more rapidly in time.The utility model is energy-efficient to have the traveling valve 27 of the oiling valve of bar suction pump in time to open rapidly, for the time has been won in oil-feed; The traveling valve 27 of oiling valve cuts out in time, has also won the time for reducing the leakage that refluxes of crude oil in the pump chamber, so the traveling valve 27 of oiling valve is opened, and to close in time also be rapidly one of reason that improves pump efficiency.
The utility model is energy-efficient, and to have the bar suction pump to also help polished rod 21 descending, because the pressure that the sucker rod lower end surface of conventional rod pumping pump is born when down stroke is the pressure in the pump chamber, this pressure equals pit shaft head of liquid and oil pressure sum.The bar suction pump is arranged when the sucker rod down stroke and the utility model is energy-efficient, the pressure that the sucker rod lower end surface is born when descending is annular space head of liquid and casing pressure sum, and this pressure is less than the pump chamber pressure of conventional rod pumping pump.Therefore with respect to conventional rod pumping pump, the utility model is energy-efficient to have the polished rod 21 of bar suction pump descending easier, can reduce and rub partially and bending, also helps improving pump efficiency.
Because during upstroke, the utility model is energy-efficient to have the plunger lower end surface of bar suction pump to bear a power that makes progress, and has reduced polished rod 21 load, has reduced polished rod 21 amount of deformation, this also helps improving pump efficiency.
Described packoff nipple 32 both can adopt soft seal and 31 sealings of sealing polished rod, also can adopt the sealing means as pump barrel and plunger, smooth surface is processed in packoff nipple 32 inside, and sealing polished rod 31 formed the sealing that is similar between plunger and the pump barrel.Described traveling valve 27 and/or standing valve 33 can be made of a plurality of side-by-side valves, to reduce the resistance of valve convection cell.Can adopt a plurality of valve ball modes arranged side by side on the same valve road of described traveling valve 27, to reduce the possibility of pump leakage.Described pump barrel 30 diameters can greater than tubing diameter, can be less than tubing diameter, also can equal tubing diameter.
In order to prevent the sand card and to reduce the influence of sand, can soft plunger be installed in the lower end of plunger 29 or on plunger 29, add the soft seal ring, to remove the silt on the pump barrel 30 to pump barrel and plunger.
In order to prevent the sand card and reduce the influence of sand that also can drive some circular grooves on pump barrel 30, in plunger 29 upstream or downstream processes, in case there is sand to be stuck between pump barrel 30 and the plunger 29, these sand will be received by circular groove to pump barrel and plunger.
Fig. 3 has showed second kind of mode of execution of the present utility model, and this mode has just increased plunger radial through hole 40 on preceding a kind of mode of execution, and described radial direction through hole 40 communicates standing valve passage 37 and plunger 29 outer cylinder surfaces.Can reduce the axial length of big footpath pump barrel 36 so on the one hand, help improving pump efficiency; Can realize annotating vapour under the situation of bottom pump barrel 30 not allowing plunger 29 break away from fully on the other hand, this point is for adopting uncoupling mechanism 34 to connect polished rods 21 and sealing polished rod 31 is crucial.Because plunger 29 is deviate from pump barrel 30 fully, post may appear, and the situation at 29 misalignment pump barrel centers may produce very big resistance when plunger 29 advances people's pump barrel once more, may cause uncoupling mechanism 34 to open in case resistance is excessive.Owing on plunger 29, have plunger radial through hole 40, plunger radial through hole 40 is linked to each other with traveling valve passage 37, after carrying certain altitude on the plunger 29, plunger radial through hole 40 will communicate with big footpath pump barrel 36 when so in a single day needing to annotate vapour, for annotating stripping for passage.Certainly carry plunger 29 on this moment and also will guarantee the valve ball of standing valve to be pushed up from fixed valve base, also for annotating stripping for passage by spring spindle 39.
This pump is annotated the needs of vapour and oil recovery and the needs that the vapour driving oil recovery oil well is produced except satisfying the steam soak oil well, also can satisfy the oil well production needs that other medium is handled up, also can satisfy oil well in process of production needs inject the demand of fluid from oil pipe, as satisfying the demand of oil well fixed tubular column such as acidifying, de-plugging, wax removal, scale removal.
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 (9)
1, a kind of energy-efficient bar suction pump that has, it comprises polished rod (21), oil pipe (24), traveling valve (27), plunger (29), pump barrel (30), sealing polished rod (31), packoff nipple (32), standing valve (33), uncoupling mechanism (34), fixed valve base (35); Described pump barrel (30) links to each other with top oil pipe (24); Described uncoupling mechanism (34) is used to can be disconnected to connect polished rod (21) and sealing polished rod (31); Described packoff nipple (32) links to each other with fixed valve base (35); Described fixed valve base (35) is positioned at the top of pump barrel (30) and links together with pump barrel (30); Described standing valve (33) is seated in standing valve passage (38) top of fixed valve base (35); Described plunger (29) is positioned at the inside of pump barrel (30), and its plunger (29) top links to each other with sealing polished rod (31); Described traveling valve (27) is seated in standing valve passage (37) top of described plunger (29); Described sealing polished rod (31) can move up and down from packoff nipple (32) center hole; Described standing valve (33) and the fixed valve base (35) that is attached thereto are positioned at the top of pump barrel (30), and that described traveling valve (27) and the plunger (29) that is attached thereto are positioned at pump barrel (30) is inner and place the below of fixed valve base (35); It is characterized in that in the middle of described pump barrel (30), being set to the big footpath pump barrel (36) that one section internal diameter amplifies, in described standing valve passage (38), be provided with and be fixed with spring spindle (39).
2, the energy-efficient bar suction pump that has according to claim 1 is characterized in that described plunger (29) offers radial direction through hole (40), and described radial direction through hole (40) communicates standing valve passage (37) and plunger (29) outer cylinder surface.
3, the energy-efficient bar suction pump that has according to claim 1 and 2 is characterized in that described packoff nipple (32) can adopt soft seal and sealing polished rod (31) sealing.
4, the energy-efficient bar suction pump that has according to claim 1 and 2 is characterized in that described packoff nipple (32) inside is processed into smooth surface, forms smooth sealing surface with sealing polished rod (31).
5, the energy-efficient bar suction pump that has according to claim 1 and 2 is characterized in that described traveling valve (27) is made of a plurality of valves arranged side by side.
6, the energy-efficient bar suction pump that has according to claim 1 and 2 is characterized in that described standing valve (33) can be made of a plurality of side-by-side valves.
7, the energy-efficient bar suction pump that has according to claim 1 and 2 is characterized in that the lower end of plunger (29) is connected with soft plunger.
8, the energy-efficient bar suction pump that has according to claim 1 and 2, what it is characterized in that plunger (29) is added with the soft seal ring.
9, the energy-efficient bar suction pump that has according to claim 1 and 2 is characterized in that offering some circular grooves on the pump barrel (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520114995 CN2846799Y (en) | 2005-08-03 | 2005-08-03 | High efficiency energy saving thick oil pump with rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520114995 CN2846799Y (en) | 2005-08-03 | 2005-08-03 | High efficiency energy saving thick oil pump with rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2846799Y true CN2846799Y (en) | 2006-12-13 |
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ID=37512222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520114995 Expired - Fee Related CN2846799Y (en) | 2005-08-03 | 2005-08-03 | High efficiency energy saving thick oil pump with rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2846799Y (en) |
Cited By (1)
| 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 |
-
2005
- 2005-08-03 CN CN 200520114995 patent/CN2846799Y/en not_active Expired - Fee Related
Cited By (1)
| 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 |
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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: 20061213 Termination date: 20120803 |