CN204252900U - A kind of mechanical block-relief pumping pipe string - Google Patents
A kind of mechanical block-relief pumping pipe string Download PDFInfo
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- CN204252900U CN204252900U CN201420556035.9U CN201420556035U CN204252900U CN 204252900 U CN204252900 U CN 204252900U CN 201420556035 U CN201420556035 U CN 201420556035U CN 204252900 U CN204252900 U CN 204252900U
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Abstract
The application discloses a kind of mechanical block-relief pumping pipe string, comprises the oil pipe of sequential concatenation, oil well pump, screen casing, mechanical block-relief device; Described mechanical block-relief device comprises: the main body that lengthwise extends, and it is provided with the inner chamber of the direction extension extended along described main body lengthwise; Described main body have back to main body upper end and main body lower end; Described main body upper end closed is also connected with the lower end of described screen casing, and described main body lower end is provided with the under shed communicated with described inner chamber; The wall of described main body is provided with the open-work passing into described inner chamber; Be located at the one way valve be connected below described open-work and with main body, it is for making liquid enter in described inner chamber and preventing liquid from discharging by described inner chamber; Be arranged on the vibrating reed on the outer wall of described main body, when liquid is discharged by described open-work, liquid can impact described vibrating reed; Fixed cover is located at the packer accessory outside described main body.The mechanical block-relief pumping pipe string that the application provides effectively can solve the blockage problem of connectivity part between sleeve pipe and oil reservoir.
Description
Technical field
The application relates to de-plugging of well field, particularly relates to a kind of mechanical block-relief pumping pipe string.
Background technology
In the hole of oil major storage in rock stratum, form oil reservoirs.In oil recovery process, need oil extraction pipeline to be deep in oil reservoirs, the oil stored in oil reservoirs is exploited.
Usually producing well is as shown in Figure 1 adopted to carry out oil exploitation at present.As shown in Figure 1, described producing well comprises sleeve pipe 101, oil pipe 102, sucker rod 103, oil jacket packer 104, oil well pump.Described oil well pump comprises the pump barrel 105 of connected pipes 102 lower end and is positioned at the plunger 106 of pump barrel 105, and described plunger 106 connects described sucker rod 103.When described sucker rod 103 is pumped by oil pumper drive, described plunger 106 pumps equally under the drive of described sucker rod 103, and namely oil well pump carries out upstroke, down stroke.Annular space between described sleeve pipe 101 and oil pipe 102 is sealed by described oil jacket packer 104 to be split.Described sleeve pipe 101 is communicated with oil reservoir 108 by connectivity part 107, and the crude oil in described oil reservoir 108 relies on osmosis can be entered in sleeve pipe 101 by the hole of described connectivity part 107.Carry out in upstroke, down stroke process in oil well pump circulation, the crude oil in oil reservoir 108 is entered in pump barrel 105 through sleeve pipe 101 by connectivity part 107, and then enters in oil pipe 102 until ground.
After described producing well carries out oil exploitation for a long time, need often to take maintainability operation or other measures, these measures can bring some solid particles etc. in described producing well.Described solid particle can be deposited on described sleeve pipe 101 and the connectivity part 107 of described oil reservoir 108 and to be diminished by the hole of described connectivity part 107 even shutoff; meanwhile, in crude oil flow process, its inside is carried particulate matter, colloid, pitch etc. can reduce by pore plugging less for the aperture of described connectivity part 107 or by the hole of described connectivity part 107 in transition process.Be no matter described solid particle or particulate matter, colloid, pitch all can hinder crude oil in the flowing of described connectivity part 107 and can continue alluvial.Along with the accumulation of above-mentioned obstruction, blocking can be formed in described connectivity part 107, and then reduce the permeability of described connectivity part 107, finally have a strong impact on the oil production rate of producing well, so need a kind of device that can solve the blockage problem of connectivity part between sleeve pipe and oil reservoir badly.
Utility model content
In view of prior art problem, the application provides a kind of mechanical block-relief pumping pipe string, can solve the blockage problem of connectivity part between sleeve pipe and oil reservoir.
A kind of mechanical block-relief pumping pipe string that the application provides, it is applied in sleeve pipe, comprises the oil pipe of sequential concatenation, oil well pump, screen casing, mechanical block-relief device;
Described mechanical block-relief device comprises:
The main body that lengthwise extends, it is provided with the inner chamber of the direction extension extended along described main body lengthwise; Described main body have back to main body upper end and main body lower end; Described main body upper end closed is also connected with the lower end of described screen casing, and described main body lower end is provided with the under shed communicated with described inner chamber; The wall of described main body is provided with the open-work passing into described inner chamber;
Be located at the one way valve be connected below described open-work and with main body, it is for making liquid enter in described inner chamber and preventing liquid from discharging by described inner chamber;
Be arranged on the vibrating reed on the outer wall of described main body, when liquid is discharged by described open-work, liquid can impact described vibrating reed;
Fixed cover is located at the packer accessory outside described main body, and it is positioned at the below of described open-work and described vibrating reed, and the outer edge surface energy of described packer accessory and described internal surface of sleeve pipe seal fits with by the annular space sealed separation between sleeve pipe and described mechanical block-relief device.
Preferably, being provided with in described inner chamber can by the shutoff piston of described open-work shutoff, and the outer wall of described shutoff piston and the wall of described inner chamber seal fits; Be more than or equal to the length in the direction that described shutoff piston extends along described main body along the distance in the direction that described main body extends between described open-work and described inner chamber end face.
Preferably, the wall of described inner chamber is provided with the spacing ring be positioned at below described open-work, and being provided with in described inner chamber can by the downward contact of described shutoff piston to the first elastomeric element of described spacing ring.
Preferably, described one way valve comprises ball seat and valve ball; Described ball seat is located in described inner chamber and between described open-work and described under shed, it is fixedly connected with the wall of described inner chamber; Pass through aperture is offered in the direction that described ball seat extends along described main body lengthwise, and described valve ball is positioned at described inner chamber and can by described through hole shutoff.
Preferably, described mechanical block-relief device also comprises and is set in the outer and tumbler be rotatably connected with described main body of described main body, described tumbler is provided with the through hole comprising liquid inlet and liquid outlet, and the angle towards the radial direction with described tumbler cross section of described through hole outlet opening is acute angle; When described tumbler rotates, described liquid inlet communicates with described open-work interval; When liquid is discharged by described liquid outlet, liquid can impact described vibrating reed.
Preferably, be provided with nozzle in described through hole, the minimum diameter of described nozzle is less than the internal diameter of described open-work.
Preferably, the quantity of described open-work is at least two, and it is uniformly distributed in the circumference of described main body; The quantity of described through hole is at least four, and it is uniformly distributed in the circumference of described tumbler; Described vibrating reed quantity is at least two and is uniformly distributed in the circumference of described main body.
Preferably, described main body fixed sleeves is provided with around part, and the described inwall around part is provided with first step; The second elastomeric element, sealing block is provided with between the outer wall of the described inwall around part and described main body; First step described in described second elastomeric element one end contact, sealing block described in its other end contact; Described sealing block by described around seal between part and described body outer wall and contact described in tumbler.
Preferably, described main body comprises upper valve body and lower valve body; Described upper valve body is connected with described lower valve body by described being located at around part fixed cover outside the lower end of described upper valve body and the upper end of described lower valve body;
Described main body upper end is the upper end of described upper valve body, and described open-work is arranged on the wall of described upper valve body, and described vibrating reed is arranged on outside described upper valve body; Described main body lower end is the lower end of described lower valve body, and described ball seat is positioned at described lower valve body, and described packer accessory fixed cover is located at outside described lower valve body.
Preferably, the inwall of described main body is provided with the second step be positioned at above described ball seat, be provided with the 3rd elastomeric element between described second step and described ball seat, second step described in described 3rd elastomeric element one end contact, described in its other end contact, valve ball is by described through hole shutoff; The outer wall of described lower valve body is provided with the 3rd step and baffle ring, and described packer accessory is between described 3rd step and described baffle ring; The upper end of described upper valve body is connected with described screen casing by being provided with top connection.
The mechanical block-relief pumping pipe string that the application provides is when oil well pump carries out upstroke, described mechanical block-relief device moves upward, and then the below of described mechanical block-relief device in sleeve pipe forms negative pressure, the obstruction of described negative pressure to the connectivity part of sleeve pipe and oil reservoir forms certain swabbing action.Down stroke is carried out at described oil well pump.When described oil well pump carries out down stroke, described mechanical block-relief device moves downward, and then the pressure of the below fluid of described mechanical block-relief device in sleeve pipe increases, and described mechanical block-relief device disappears for the swabbing action of described obstruction.Along with oil well pump upstroke, the hocketing of down stroke, described obstruction is subject to the swabbing action of constantly change, and described obstruction can slowly loosen until depart from and enter in fluid, and then a formation de-plugging.Simultaneously, along with oil well pump upstroke, the hocketing of down stroke, fluid in described inner chamber can be injected into described vibrating reed by described open-work when described inner chamber runs up to a certain amount of, and then cause described vibrating reed to vibrate, when the vibration wave formed during described vibrating reed vibration acts on described obstruction, also obstruction can be made slowly to vibrate come off, and then form secondary de-plugging.So the mechanical block-relief pumping pipe string provided in the application is under a de-plugging of obstruction and secondary de-plugging effect, and the mechanical block-relief pumping pipe string that the application provides effectively can solve the blockage problem of connectivity part between sleeve pipe and oil reservoir.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those skilled in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is prior art producing well recover petroleum schematic diagram;
Fig. 2 is the producing well structural representation that the mechanical block-relief pumping pipe string that provides of a kind of embodiment of the application and sleeve pipe are formed;
Fig. 3 is the mechanical block-relief apparatus structure schematic diagram of the mechanical block-relief pumping pipe string that a kind of embodiment of the application provides;
Fig. 4 is the tumbler cross sectional representation that the application's embodiment provides.
Detailed description of the invention
Technical scheme in the application is understood better in order to make those skilled in the art person, below in conjunction with the accompanying drawing in the embodiment of the present application, technical scheme in the embodiment of the present application is clearly and completely described, obviously, described embodiment is only some embodiments of the present application, instead of whole embodiments.Based on the embodiment in the application, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite not making creative work, all should belong to the scope of the utility model protection.
Please refer to Fig. 2, Fig. 3, the mechanical block-relief pumping pipe string that a kind of embodiment of the application provides, it is applied in sleeve pipe, and this mechanical block-relief pumping pipe string comprises oil pipe 2, oil well pump, screen casing 6, the mechanical block-relief device 7 of sequential concatenation; Described mechanical block-relief device 7 comprises: the main body 8 that lengthwise extends, and it is provided with the inner chamber 13 of the direction extension extended along described main body 8 lengthwise; Described main body 8 have back to main body upper end and main body lower end; Described main body upper end closed is also connected with the lower end of described screen casing 6, and described main body lower end is provided with the under shed 17 communicated with described inner chamber 13; The wall of described main body 8 is provided with the open-work 11 passing into described inner chamber 13; Be located at the one way valve be connected below described open-work 11 and with main body 8, it is for making liquid enter in described inner chamber 13 and preventing liquid from discharging by described inner chamber 13; Be arranged on the vibrating reed 31 on the outer wall of described main body 8, when liquid is discharged by described open-work 11, liquid can impact described vibrating reed 31; Fixed cover is located at the packer accessory 23 outside described main body 8, and it is positioned at below described open-work 11 and described vibrating reed 31, and the outer edge surface energy of described packer accessory 23 and internal surface of sleeve pipe seal fits with by the annular space sealed separation between sleeve pipe and described mechanical block-relief device.
Please refer to Fig. 2, according to shown in Fig. 2, described oil pipe 2, described oil well pump, described screen casing 6, described mechanical block-relief device 7 sequential concatenation are formed pumping pipe string, namely described oil well pump is connected under described oil pipe 2, described screen casing 6 is connected under described oil well pump, and described mechanical block-relief device 7 is connected under described screen casing 6.The sucker rod 3 connecting described oil well pump is provided with in shown oil pipe 2.In described mechanical block-relief pumping pipe string, described oil pipe 2 lower end connects the pump barrel 4 of described oil well pump, and the lower end of described pump barrel 4 connects described screen casing 6, and the lower end of described screen casing 6 connects described mechanical block-relief device 7.Described mechanical block-relief pumping pipe string is arranged in sleeve pipe 1, and then forms producing well with sleeve pipe 1, and the described packer accessory 23 of described mechanical block-relief device 7 is by the annular space sealed separation between described mechanical block-relief device 7 and described sleeve pipe 1.
When the described producing well consisted of the mechanical block-relief pumping pipe string provided by present embodiment recovers the oil, under the drive of oil pumper, sucker rod drives the plunger 5 of oil well pump to move upward, and described oil well pump carries out upstroke.When described oil well pump carries out upstroke, described oil pipe 2 can upwards produce certain elastic shrinkage under the effect of sucker rod and internal liquid, under the drive of described oil pipe elastic shrinkage, described mechanical block-relief device 7 moves upward, because described packer accessory 7 is by the annular space sealed separation between described mechanical block-relief device 7 and described sleeve pipe 1, and described inner chamber 13 is in by described one way valve sealed condition, and then the pressure of the below of described mechanical block-relief device 7 can reduce and form negative pressure in described sleeve pipe 1, the obstruction of described negative pressure to the connectivity part of sleeve pipe 1 and oil reservoir forms certain swabbing action.When sucker rod drives described plunger 5 to move downward, described oil well pump carries out down stroke.When described oil well pump carries out down stroke, the part of described oil pipe 2 elastic shrinkage can restore and then drive described mechanical block-relief device 7 to move downward.When described mechanical block-relief device 7 moves downward, the pressure of the below fluid of the described mechanical block-relief device 7 in sleeve pipe 1 increases, and when fluid pressure reaches, fluid during described one-way valve opens is entered into described inner chamber 13.Now, described mechanical block-relief device 7 disappears for the swabbing action of described obstruction, and along with oil well pump upstroke, the hocketing of down stroke, described obstruction is subject to the swabbing action of constantly change, described obstruction can slowly loosen until depart from and enter in fluid, and then forms a de-plugging.
Please refer to Fig. 2, Fig. 3, along with oil well pump upstroke, the hocketing of down stroke, fluid in the described inner chamber 13 of described mechanical block-relief device 7 can be flowed out by described open-work 11 when described inner chamber 13 runs up to a certain amount of and be injected into described vibrating reed 31, and then cause described vibrating reed 31 to vibrate, when the vibration wave formed when described vibrating reed 31 vibrates acts on described obstruction, obstruction can be made slowly to vibrate come off, and then form secondary de-plugging.So, when the mechanical block-relief pumping pipe string work that present embodiment provides under a de-plugging of obstruction and secondary de-plugging effect, the mechanical block-relief pumping pipe string that present embodiment provides effectively can solve the blockage problem of connectivity part between sleeve pipe 1 and oil reservoir.
Simultaneously; usually wax component can be contained in crude oil; attracting each other between described wax becomes, it is brilliant to form wax; continue between wax crystalline substance to combine and form the strong net structure of tack; described cancellated wax crystalline substance not only hinders crude oil flow but also is very easily attached to tube inner wall in crude oil; pipe aperture is constantly reduced, time serious, affects oil well production.The mechanical block-relief device 7 provided due to present embodiment can form vibration wave, described vibration wave effect of vibration produces the effects such as stirring, dispersion, impact, fragmentation in waxy crude oil, oil component and wax crystalline substance in crude oil are uniformly distributed, thus decrease the brilliant probability be combined with each other of wax; And, violent vibration and the mechanics effect produced make to produce shear stress owing to constantly vibrating between wax crystalline substance, described shear stress can weaken the adhesion between wax crystalline substance, and then cause the net structure of wax crystalline substance to destroy, so the mechanical block-relief pumping pipe string that application present embodiment provides can also effective wax control.
In described mechanical block-relief device 7, described main body 8 is lengthwise extension, the tubulose that its entirety can be closed for one end.Described main body 8 is provided with the inner chamber 13 of the direction extension extended along described main body 8 lengthwise.Described main body 8 have back to described main body upper end and described main body lower end, described main body upper end closed is also connected with the lower end of described screen casing 6, described main body lower end is provided with the described under shed 17 communicated with described inner chamber 13, the wall of described main body 8 is provided with the described open-work 11 passing into described inner chamber, arranged by this kind, fluid can be entered by described under shed 17 and described open-work 11 discharges fluid.
Described main body 8 can be arranged to upper valve body and lower valve body two parts.Described lower valve body is connected to the below of described upper valve body.Described upper valve body and described lower valve body entirety can be all tubulose.Described main body upper end is the upper end 10 of described upper valve body, the upper end 10 of described upper valve body can be threaded connection a closeouts 9 and be closed the upper end 10 of described upper valve body, the upper end 10 that described closeouts 9 can be connected to described upper valve body is inner, also can be arranged to lid and be covered the upper end 10 of described upper valve body with the upper end 10 of closed described upper valve body.The upper end 10 of described upper valve body is connected with top connection 35, is realized the connection of described mechanical block-relief device 7 and described screen casing 6 by described top connection 35.Described open-work 11 is arranged on the wall of described upper valve body, and its quantity can be set at least two and be uniformly distributed in the circumference of described upper valve body, is namely uniformly distributed in the circumference of described main body.Described vibrating reed 31 can be fixedly connected with and also can be rotatably connected on outside described upper valve body.The lower end 12 of described upper valve body connects the upper end 14 of described lower valve body.Described main body lower end is the lower end 16 of described lower valve body.Described under shed 17 is positioned at the lower end 16 of described lower valve body.Described packer accessory 23 fixed cover is located at outside described lower valve body.
Further, can also be provided with in described inner chamber 13 can by the shutoff piston 33 of described open-work 11 shutoff, and the outer wall of described shutoff piston 33 and the wall of described inner chamber 13 seal fits.The location comparison of described shutoff piston 33 in described inner chamber 13 is flexible, and it can be arranged on described ball seat 18.Be not less than the length in the direction that described shutoff piston 33 extends along described main body 8 lengthwise along the distance in the direction that described main body lengthwise extends between described open-work 11 and the end face of described inner chamber 13.When described inner chamber 13 enters fluid, the amount entered along with fluid gets more and more, and fluid can by described shutoff piston 33 upwards jack-up.Along with shutoff piston 33 described in fluid jack-up until described shutoff piston 33 moves to the top of described open-work 11, now fluid can flow out from described open-work 11, due to the existence of described shutoff piston 33, certain thrust is there is when making fluid enter described open-work 11, ensure that described fluid enters the flow velocity of described open-work 11, and then form the fluid sprayed.In practice, the wall of described inner chamber 13 can be provided with the spacing ring 32 be positioned at below described open-work 11, be provided with in described inner chamber 13 can by described shutoff piston 33 downwards contact to the first elastomeric element 34 of described spacing ring 32.Described first elastomeric element 34 can comprise spring.Described shutoff piston 33 to spacing by described spacing ring 32 during described spacing ring 32 place, now can be arranged described shutoff piston 33 by the shutoff of described open-work 11 by described first elastomeric element 34 contact.
Described one way valve to be located at below described open-work and to be connected with main body, and it is for making liquid enter in described inner chamber and preventing liquid from discharging by described inner chamber.Due to existing one-way valve structures comparative maturity, the one way valve of present embodiment can comprise ball seat and valve ball, and certain described valve ball also can replace to inversion type round platform etc., and the application is not as limit.Described ball seat 18 to be located in described inner chamber 13 and between described open-work 11 and described under shed 17.Described ball seat 18 is fixedly connected with the wall of described inner chamber 13, described in be fixedly connected with to comprise and be threaded.Pass through aperture is offered in the direction that described ball seat 18 extends along described main body 8 lengthwise, be provided with in described inner chamber 13 and can be seated at described through hole by the valve ball 19 of described through hole shutoff, by arranging described valve ball 19 and described through hole, can ensure only can enter fluid to described inner chamber 13 in described mechanical block-relief device 7 moves up and down process, and fluid cannot flow out described inner chamber 13 by described through hole.Further, described ball seat 18 is positioned at described lower valve body.The inwall of described lower valve body is provided with the second step 21 be positioned at above described ball seat 18, described second step 21 can be the reducing place of described lower valve interior wall, at described second step 21 place, the inner circle radius that the inner circle radius of the cross section of described lower valve body compares the cross section of the described lower valve body below described second step 21 is large.The 3rd elastomeric element 20 is provided with between described second step 21 and described ball seat 18.Described 3rd elastomeric element 20 can comprise spring.Second step 21 described in described 3rd elastomeric element 20 one end contact, described in its other end contact, valve ball 19 is by described through hole shutoff.By arranging described second step 21, described 3rd elastomeric element 20, when described mechanical block-relief device 7 moves downward described valve ball 19 can resilience in time by described through hole shutoff.
Please refer to Fig. 4, described mechanical block-relief device 7 also comprises tumbler 27.Described tumbler 27 entirety can be set to the round casing shape that cross section is annulus.It is outer and be rotatably connected with described main body 8 that described tumbler 27 is set in described main body 8.Described tumbler 27 is provided with through hole 28, and described through hole 28 linearly can extend and be uniformly distributed in the circumference of described tumbler 27.Described through hole 28 comprises liquid inlet 36 and liquid outlet 37.The angle towards the radial direction with described tumbler 27 cross section of described through hole 28 outlet opening is sharp angle α, thus the flow direction of the fluid of being discharged by described through hole 28 outlet opening also can and the radial direction of described tumbler 27 cross section between there is the angle of sharp angle α.Due to the existence of described angle, fluid described fluid when described through hole 28 can form certain reaction force to the wall of described through hole 28, and under the effect of this reaction force, described tumbler 27 can rotate around described main body 8.The plane at the axis place of described through hole 28 can coincide with the plane at described open-work 11 place, or described through hole 28 is positioned at same vertical height with described open-work 11.When described tumbler 27 rotates, described liquid inlet 36 communicates with described open-work 11 interval, communicated with described open-work 11 interval by described liquid inlet 36, make described liquid outlet 37 interval ejection fluid to described vibrating reed 31, and then cause described vibrating reed 31 intermittent control shaking.The vibration frequency of described vibrating reed 31 can be improved by arranging tumbler.In order to improve the vibration frequency of described vibrating reed 31 further, the quantity of described through hole 28 can be set at least four and be uniformly distributed in the circumference of described tumbler 27.Further, the external diameter of described main body 8 or described upper valve body has a undergauge by upper, i.e. limited step.Described limited step is located at and is limited described tumbler 27 above described tumbler 27 and move up.One sealing mat 30 can be set between described tumbler 27 and described limited step to seal between described tumbler 27 and described limited step, and described sealing mat 30 can also reduce the friction between described tumbler 27 and described limited step.The described mechanical block-relief pumping pipe string of present embodiment arranges described tumbler 27 with the vibration frequency of the vibration wave improving vibrating reed 31 and produce by described mechanical block-relief device 7, not only further enhance secondary de-plugging effect, yet further enhances wax control result.
Nozzle 29 can be provided with to accelerate the flow velocity of fluid further in described through hole 28, improve the impact force of vibrating reed 31 described in described Oil shocking.The minimum diameter of described nozzle 29 is less than described open-work internal diameter, in practice, and the described open-work internal diameter that the minimum diameter of described nozzle 29 is less than 0.5 times.
Described main body 8 fixed sleeves is provided with around part 24, and described fixing sheathed can comprising is threaded.The described cross section around part 24 also can for annulus be to adapt to the structure such as oil pipe, main body 8.The described inwall around part 24 is provided with first step, and described first step is the described reducing place around the inwall of part 24, and namely the described internal diameter around part 24 expands through described first step internal diameter from the bottom to top.The second elastomeric element 25, sealing block 26 is provided with between the outer wall of the described inwall around part 24 and described main body 8; First step described in described second elastomeric element 25 one end contact, sealing block 26 described in its other end contact; Described sealing block 26 seals described around between part 24 and described main body 8 outer wall.Due to be subject to described second elastomeric element 25 effect described sealing block 26 contact described in tumbler 27, prevent described tumbler 27 from moving down.Concrete, described tumbler 27 to described limited step, and then is limited between described limited step and described sealing block 26 and rotates by described sealing block 26 by described tumbler 27 contact.Described second elastomeric element 25 can comprise spring.Further, describedly can be located at outside the lower end 12 of described upper valve body and the upper end 14 of described lower valve body by fixed cover around part 24, described upper valve body is connected with described lower valve body.Described fixing sheathed can comprising is threaded.
Described vibrating reed 31 is arranged on outside described main body 8 or described tumbler 27, and when liquid is discharged by described open-work 11, liquid can impact described vibrating reed 31.Described vibrating reed 31 can be fixedly connected on the outer wall of described main body 8, also can be rotationally connected with described body outer wall.In practical application, described vibrating reed 31 can be welded on the outer wall of described main body 8 or described tumbler 27.Due between described tumbler 27 and described main body 8 for being rotationally connected relation, described vibrating reed 31 is arranged on and namely described tumbler 27 can realizes being rotationally connected of described vibrating reed 31 and described body outer wall.Described vibrating reed 31 can be arranged on the below that also can be arranged on described open-work 11 above described open-work 11 with the junction of described main body 8 on vertical height, or, described vibrating reed 31 and the junction of described main body 8 can also be arranged on left or the right of described liquid outlet 37, present embodiment, not as limit, only need ensure impact described vibrating reed 31 when liquid is discharged by described open-work 11 or described liquid outlet 37.When described vibrating reed 31 be fixedly installed on described main body 8 outer time, described vibrating reed 31 is relative fixing with the position of described open-work 11, described tumbler 27 described main body 8 of having mercy on is rotated, when described liquid inlet 36 and described open-work 11 communicate, liquid is flowed out by described liquid outlet 37 and impacts to described vibrating reed 31, and concrete impact is to the surface of described vibrating reed 31 near described main body 8 side.So, described vibrating reed 31 be fixedly installed on described main body 8 outer time, described liquid outlet 37 need could be blocked and non-shutoff by described vibrating reed 31 when described tumbler 27 rotates a certain angle.When described vibrating reed 31 be fixedly installed on described main body 8 outer time, described vibrating reed 31 can be followed described vibrating reed 31 and be rotated together, blocks and non-shutoff so need described vibrating reed 31 to be set to described liquid outlet 37 always in such cases.The quantity of described vibrating reed 31 is at least two panels and be uniformly distributed in the circumference of described main body 8.For the device of mechanical block-relief shown in Fig. 3, described vibrating reed 31 is arranged on the outer wall of described main body 8, and described vibrating reed 31 and the junction of described main body 8 are positioned at the top of described open-work 11, described liquid outlet 37 blocks (tumbler 27 goes to angle shown in Fig. 3) along the direction that described main body 8 extends to downward-extension by described vibrating reed 31.
Described packer accessory 23 fixed cover is located at outside described main body 8, it is positioned at below described open-work 11 and described vibrating reed 31, and the outer edge surface energy of described packer accessory 23 and sleeve pipe 1 inner wall sealing are fitted with by the annular space sealed separation between sleeve pipe 1 and described mechanical block-relief device 7.Described packer accessory 23 material can adopt the flexible materials such as rubber, and its external diameter suitably can be greater than the internal diameter of entered sleeve pipe.Described packer accessory 23 is by the annular space sealed separation between described sleeve pipe and described mechanical block-relief device, negative pressure could be formed in the below of described mechanical block-relief device when mechanical block-relief device moves upward described in such guarantee, and, after in the rear annular space flowing into described sleeve pipe and described mechanical block-relief device of vibrating reed 31 described in described Oil shocking, due to the existence of described packer accessory 23, described fluid can accumulate until enter in screen casing above described packer accessory 23, and then is evacuated in oil pipe by described oil well pump.In actual applications, the outer wall of described lower valve body is provided with the 3rd step 15 and baffle ring 22, and described packer accessory 23 is between described 3rd step 15 and described baffle ring 22.Described 3rd step 15 can be described lower valve outer wall by a undergauge under upper, it moves up for limiting described packer accessory 23.Described baffle ring 22 moves down for limiting described packer accessory 23.
More than show and describe general principle of the present utility model, principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and manual just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (10)
1. a mechanical block-relief pumping pipe string, it is applied in sleeve pipe, it is characterized in that, comprises the oil pipe of sequential concatenation, oil well pump, screen casing, mechanical block-relief device;
Described mechanical block-relief device comprises:
The main body that lengthwise extends, it is provided with the inner chamber of the direction extension extended along described main body lengthwise; Described main body have back to main body upper end and main body lower end; Described main body upper end closed is also connected with the lower end of described screen casing, and described main body lower end is provided with the under shed communicated with described inner chamber; The wall of described main body is provided with the open-work passing into described inner chamber;
Be located at the one way valve be connected below described open-work and with main body, it is for making liquid enter in described inner chamber and preventing liquid from discharging by described inner chamber;
Be arranged on the vibrating reed on the outer wall of described main body, when liquid is discharged by described open-work, liquid can impact described vibrating reed;
Fixed cover is located at the packer accessory outside described main body, and it is positioned at the below of described open-work and described vibrating reed, and the outer edge surface energy of described packer accessory and described internal surface of sleeve pipe seal fits with by the annular space sealed separation between sleeve pipe and described mechanical block-relief device.
2. mechanical block-relief pumping pipe string as claimed in claim 1, is characterized in that: being provided with in described inner chamber can by the shutoff piston of described open-work shutoff, and the outer wall of described shutoff piston and the wall of described inner chamber seal fits; Be more than or equal to the length in the direction that described shutoff piston extends along described main body along the distance in the direction that described main body extends between described open-work and described inner chamber end face.
3. mechanical block-relief pumping pipe string as claimed in claim 2, is characterized in that: the wall of described inner chamber is provided with the spacing ring be positioned at below described open-work, and being provided with in described inner chamber can by the downward contact of described shutoff piston to the first elastomeric element of described spacing ring.
4. mechanical block-relief pumping pipe string as claimed in claim 1, is characterized in that: described one way valve comprises ball seat and valve ball; Described ball seat is located in described inner chamber and between described open-work and described under shed, it is fixedly connected with the wall of described inner chamber; Pass through aperture is offered in the direction that described ball seat extends along described main body lengthwise, and described valve ball is positioned at described inner chamber and can by described through hole shutoff.
5. mechanical block-relief pumping pipe string as claimed in claim 1, it is characterized in that: described mechanical block-relief device also comprises and is set in the outer and tumbler be rotatably connected with described main body of described main body, described tumbler is provided with the through hole comprising liquid inlet and liquid outlet, and the angle towards the radial direction with described tumbler cross section of described through hole outlet opening is acute angle; When described tumbler rotates, described liquid inlet communicates with described open-work interval; When liquid is discharged by described liquid outlet, liquid can impact described vibrating reed.
6. mechanical block-relief pumping pipe string as claimed in claim 5, it is characterized in that: be provided with nozzle in described through hole, the minimum diameter of described nozzle is less than the internal diameter of described open-work.
7. mechanical block-relief pumping pipe string as claimed in claim 5, it is characterized in that: the quantity of described open-work is at least two, it is uniformly distributed in the circumference of described main body; The quantity of described through hole is at least four, and it is uniformly distributed in the circumference of described tumbler; Described vibrating reed quantity is at least two and is uniformly distributed in the circumference of described main body.
8. mechanical block-relief pumping pipe string as claimed in claim 5, it is characterized in that: described main body fixed sleeves is provided with around part, the described inwall around part is provided with first step; The second elastomeric element, sealing block is provided with between the outer wall of the described inwall around part and described main body; First step described in described second elastomeric element one end contact, sealing block described in its other end contact; Described sealing block by described around seal between part and described body outer wall and contact described in tumbler.
9. mechanical block-relief pumping pipe string as claimed in claim 8, is characterized in that: described main body comprises upper valve body and lower valve body; Described upper valve body is connected with described lower valve body by described being located at around part fixed cover outside the lower end of described upper valve body and the upper end of described lower valve body;
Described main body upper end is the upper end of described upper valve body, and described open-work is arranged on the wall of described upper valve body, and described vibrating reed is arranged on outside described upper valve body; Described main body lower end is the lower end of described lower valve body, and described ball seat is positioned at described lower valve body, and described packer accessory fixed cover is located at outside described lower valve body.
10. mechanical block-relief pumping pipe string as claimed in claim 9, it is characterized in that: the inwall of described main body is provided with the second step be positioned at above described ball seat, the 3rd elastomeric element is provided with between described second step and described ball seat, second step described in described 3rd elastomeric element one end contact, described in its other end contact, valve ball is by described through hole shutoff; The outer wall of described lower valve body is provided with the 3rd step and baffle ring, and described packer accessory is between described 3rd step and described baffle ring; The upper end of described upper valve body is connected with described screen casing by being provided with top connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420556035.9U CN204252900U (en) | 2014-09-25 | 2014-09-25 | A kind of mechanical block-relief pumping pipe string |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420556035.9U CN204252900U (en) | 2014-09-25 | 2014-09-25 | A kind of mechanical block-relief pumping pipe string |
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| CN204252900U true CN204252900U (en) | 2015-04-08 |
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| CN201420556035.9U Active CN204252900U (en) | 2014-09-25 | 2014-09-25 | A kind of mechanical block-relief pumping pipe string |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104295257A (en) * | 2014-09-25 | 2015-01-21 | 中国石油天然气股份有限公司 | Mechanical plug removal oil pumping string |
| CN110735608A (en) * | 2018-07-18 | 2020-01-31 | 中国石油天然气股份有限公司 | Oil pumping well unfreezing method and unfreezing device |
-
2014
- 2014-09-25 CN CN201420556035.9U patent/CN204252900U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104295257A (en) * | 2014-09-25 | 2015-01-21 | 中国石油天然气股份有限公司 | Mechanical plug removal oil pumping string |
| CN110735608A (en) * | 2018-07-18 | 2020-01-31 | 中国石油天然气股份有限公司 | Oil pumping well unfreezing method and unfreezing device |
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