DE1653370A1 - Process for pumping fluids from deep boreholes by means of vibrations and devices for carrying out the process - Google Patents

Description

165337X1

DB. IS G. ERNST MAIER

8 MUNICH SS

TEIFON 1110 911, »05108

OCT 21, 19a 3

A 46266

Mr. ALBJiRI GEORGffi BODIEE JR., 7877 ¥ oodley Avenue, Van Ifuys, California / IT * S ♦ A.

Process for pumping liquids from depths Drill holes by means of vibrations and gate directions to carry out the procedure

The invention relates generally to vibration pumps for deep wells, and methods, to operate this pump, as is already stated in the US Patents 2,553,541 and 2,701,559, and has iris' specific improvements to the content _t be removed with the aid of which difficulties which they have shown in practical use and were particularly difficult to solve on drilling fields where a large number of such pumps had been used together for a long time. The pumps known up to now showed a tendency to become unstable under certain conditions in the drilling field

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Iparkai «· Sduambirg lankhaul M« id, Find; & Co., M0ndi "n _r no. 2S" 4 Sankhau · H. Aulhäunr, Mündi "n, n $ 3S97 Polli *" d ι MSnaSan 153 0 oil. T «l« arammadr «il · ι PaHnfstnlor

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Work, and they were often the cause of fatigue problems of the pump pipe rod, if it closes as a result of poorly controlled longitudinal oscillation pressure waves has been exposed to high tensile forces. The invention eliminates these difficulties surprisingly effectively, as "experiments have shown.

The vibration points on which the invention is based refer to, use it to transmit the vibrational energy elongated, elastic'Elemente, which from the Surface of the soil down to the bottom of the hole extend, and either the pump tubing itself, one extending within the pump rod second linkage or a wire rope. In the USA patent 2 702 559 is shown how the pump tubing. ge itself serves as an elastic connecting column which the vibrational energy is transmitted, and the pump shown at that point also becomes, in this case, the Explanation of the invention used without thereby affecting the invention is limited to this special Ausfülirungsf orm * This means that the invention can also be applied to pumps in which there is a its own linkage is located, which the vibration

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transmits energy (see USA patent Ir. 2,553,541), or on pumps in which the elastic linkage is replaced by an elastic cable. In all of these cases is the driving force on the JFliissigiceit within the Pipe exercised with the help of several check valves, which are automatically in the rhythm of the vibrations, which Spread out, open and close through the elastic rods *

Whether it is a device in which the pipe rod, a separate rod or a wire rope is used as the path of propagation for the elastic vibrations *, in each pail the vibration energy required for pumping is transferred to the elastic rod from a .Sehwingungsgenerator - transmitted, which is an unbalance generator and UeT is vibrationally coupled to the linkage. The simplest embodiment of an unbalance generator is the one in which a pair of unbalance bodies revolve, as was set out in US Pat. No. 2,702,559 . These unbalanced bodies, which rotate on shafts which are held in the vibration generator housing, practice as a result of their

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Mass forces on the generator housing an alternating force which are transferred directly to the linkage at the upper end will. Such an IT unbalance generator has the advantage that the output alternating force automatically adapts to the impedance of the elastic linkage on which it acts, and if work is carried out in the vicinity of the resonance frequency, as a result of the interaction of the mass and spring forces of the reciprocating masses reduce the energy consumption so that that of the vibration generator output power is mainly used for the pumping work * The alternating force of the vibration generator engages at the upper end of the elastic linkage and lets pressure and tension waves successively hike to the bottom of the linkage. Preferably waves are generated, which in the elastic linkage a generate standing Respnanzwelle, so that the check valves with respect to the column of liquid in rhythm the vibrations and move in the longitudinal direction of the linkage and thus exert a driving force acting towards the upper end of the pipe on the liquid, which is in the U.S. Patent No. 2,702,559 mentioned for illustration the basic principle of the pumping process is attracted, is already disclosed.

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The ordinary »working with longitudinal vibrations Pump device, which is also shown in this description to explain the invention, uses a Pump tubing, which is made of steel and thereby is very elastic, and is consequently used at the same time as an elastic rod, it hangs vertically down on a swinging platform that is on elastic Pedern is resting. The unbalance generator consists of a housing in which the unbalanced bodies are accommodated and that directly on the upper end of the pipe rod is mounted. As they rotate, the unbalanced bodies generate centrifugal forces, the horizontal components of which cancel one another, but the vertical components of which are mutually exclusive add to each other. The resulting vertical force is applied to the housing via the bearings of the unbalanced bodies from where they are then transferred to the top of the Pümpengestänges go over, whereby elastic in the linkage Tension and pressure waves are generated. As a result of the elastic cells, antinodes of oscillation form in the sucker rod the speed with very high beach acceleration values from each other at a distance of half a wavelength of the oscillation. The Rüok-

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Impact valves, which serve as a drive for the liquid, are distributed over the pump rod in such a way that these Accelerations are exploited to the liquid to pump up the! pipeline.

The invention is now used in such a pumping system in addition, the oscillation frequency and amplitude of the elastic oscillations that spread in the pump narrow rod, to stabilize so that the opening and closing of the valves that drive the liquid and are automatically coordinated with each other and thus the frequency of the unbalance generator is monitored and controlled will. Achieving these advantages is therefore one of the main objectives of the invention.

The factors that are decisive in creating a resonance wave in an elongated, elastic body stable transfer were first associated with investigated earth drills and vibration generators based on the principle of vibration with those used in industry Material tests have been carried out. As a result of subsequent investigations with visual oscillation pumps

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however, in an oil field with deep oil wells, that numerous special advantages occur when the vibration distribution in the "elastic linkage a Tieflochpuiape stabilized and the maximum values of the rhythmic stretching and compressive stresses in the elastic Sucker rod are limited.

With those that are under consideration here The efficiency of the pumps is particularly dependent on the fact that in the elastic linkage there is a Vibration distribution is achieved so that the linkage is in resonance. A special property of a vibration pump that works in resonance is at Use of a Umiuehtgenerators to drive for the Vibrations the one that when working in the height of the resonance the amplitude of the elastic vibrational movement reaches a maximum value in the linkage, thus also the rhythmically occurring tensile force in the linkage, so that thereby the driving force exerted by the check valves on the liquid reaches a maximum. this leads to but also to maximum values of the stress in the sucker rod, which occasionally exceed the permissible hatred;

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these maximum values are limited with the aim of finding. 'Under certain conditions, the exact Itesonance value VUiCi diu: iit das Kaxiinun der oclrv-dn ^ un ^ saiüplitude or also the rhythmic stresses of 1-material in some certain frequency values are reached. The maximum values the 3 chvvä / igung a amplitude or the tensile forces decrease steadily Fr.ber senr strongly from, ° if.sicn the jump sequence upwards or below, removed from the Itesonance value. Jas means v / eiki the ocnwingun ^ s' ^ enerator-SrequenE voi .. a \, "ert below the resonance frequency and thus the maximum of the Tensile stresses slowly ^ unimirit, can be determined that the amplitude of the iSchv / in ^ uiujsbevwgung ^ i ^ ujid thus the ■ Tensile stresses with the sequence from next, up to a high level at the so {c. "Peak Freq." "Is reached. If beyond that, the frequency further e? 'liöht wjrcl, nirunt die The amplitude of the oscillations decreases again.

Because in deep boreholes !! The f: laetiaoiie linkage is long, can be used both for the round shaft and for the harmonic of which resonance occurs. In the ranks of every single Itesonanzstelle. occurs the aforementioned .sensitive. Abniin _e i £; keit der bchwin _i: un _c _.sai: iplitude you der frequency -auf. . .

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The invention is based on the finding that "/ ingungspumpeii in which an unbalance generator used in such SChv", the I'umpvorgang, Special is stable, .if -lie AT-operating frequency at a £ _ö erin it below the ILesonanzfrsquenzentweder .G-round wave or a harmonic. j) ± e stability and safety of the pumping process and thus the 3 e we guilds amplitude des. elastiscli sciivii-gex ^ cien G-astänöSs' becomes all the greater, ψβϊιχ ^, see the Ai-triebsfrecjuei-a "just mix eini: £ & χιζ geriujeii iüeil under-ever tried g £ ^ jb the next elebenen ItfcöO-ii.anai'reci'aena bei'indst. Iit I-i ^ clereij 'represents locate / e asraus is that such

\ £; spuiupe with unaxed et er stability and relieving work at a determined frequency, so that only ^ c-irii ^ fügi ^ e i'requency increase already a very star! ^v we _o u.igsaraplitude with see brings uric. Due to a considerable increase in priority, which is exceeded by the pumping of the frequency in question. : is iot i'ol-jlich Auxgabs of the judgment, on this' vveise / pjIilP. to bring about litabiliaierung ii-C-r.

lan "je triiCiflan ;; the mode of operation of the pump at the irreciuence, the m: i e.'ui Jerix.gejü unti; malb dec liesonams-

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frequency lies, ilinrt to clea 3ci ".luss that the jiTinen and JuIxIiei3en of the automat! rope valves" at Ai-v / endux ^ · aieser X4.cusii jteuxruncjoiJictJioae eurciicius is satisfied. 3G Ijo Lier to be ^ cL / th that cie V \ <. Utile ./eraae daiai _o csaaloüseü. his β ollen,; .ex ^ uie iruiorualb eii-si · icvnln- ^ ur ^ aer i-r'-isai ^ -keii; iewe ^ axuseiiÄr ^ ie £ -afIkiren shall. on both sides:;. ctie Yiiitile v; ä.irend des Jiiitcibsehr.ittes äi: ier ■ 30υ. ". ·. · ΐϋ _ο " αιι _£ ; _O eö-Lxiiet be: /? Ί ^ χ · β.αα ao ^ ye ^ j. she sicL iii. der üirciiee.exi ^ esfetateii Lüic-it ^ ing zar Pllssi ^ keiteiitrü.iuLmg oewegeii. I-iit a ^ dereii "" / ox'ten, ir_ eix ^ he soi ^ sii HcLvviXi ^ u.igspaape v ^ ird the]> ^! lü £ 3i _e x: eit nit liilfe des el - = .- ntiü.CLieii "Se stages i ^ i Ξβ ^ ε ^ αη ^ tersstst,, i'.rir.r.:" ^ s Ve,:, til, \ ά'ύίΤ & Ί-Λ es ^ ftSGlilosseji is, sip-i ir.IIiiclit- ua> der Irlüesi ^; -ivfit bä \, e _£ t, the ss su-treioaiL noil. This tri οι -3ar_ii a, veni- üicii the crest.Vi- ^ e elastic in lilclitai ^ aes Flüseigiteits3tro; as3 bev / egt. Iiü Zeitabseiiiiitt der z "- ^r eit2i- UTaIbv / elle of the elastic üc — v / in ^ juij-e, ¹ } in deia siou the valve iij. Dex ¹ üXLX ^ egeiigesexateii. Liiclitun ^ ■ 'zvlll i ⁵ lässif; i : eitsstrom moved, it should be eöfxiiet ^, -um the OTL issi _^:;. ^ k itsstroa nicnt to celiixiderii ^ Ji ^j se wüiiScLensverteri positions of the valves are predominant au Hai automatically bediiigt dadurck, daid dex · üCüvän lui ^ ^ s ^ euerator Li der j-.ina ^ mten Veise

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t. ' ir-xt v.'ird, so dais the "iPrecniejis of the elastic ä i ^ eii I ;; i lri.'Stüii _e , .e jerade Uj it .erhalb einrr utesoiians

'.io \ -irc consequently achieved through the ^ rfinau ^ that uiw "_-uii: pei'ileiε-ϋΤΑίΐ ^ uock eats oi ^ d eggs ü ^J u ~ ipvoivaxxg stable ve üicii _c : fclit,' \ veiij.i die Pre ^ uexii; der elasxiodicü ociiv / in- ^ ui- ^ ien ^ eraie untsrii;: lb eii ^ er l-.esoiii? rLsfre ^ ueiik: ..; de3 jestän

w'ie "bertiits from _o ef \ i:;. rt, becomes at c = rarti £; en fuzapen a, jCh \. ^r iii _L " üii ^ 'a ^ euerator.mit umlauf eiide-i, exzeiitriscloen! • let . \ ^r Mr. ^f eiadet, thus a so-called Uiivracht ^ eriaratior. J ± ^ e IeII trü'a alkraft the circulating on a circular path Hasse, xCit a '-.'L'olgeaciiselkrai't to that in the iieüäusn bcLv "ix _-: uii ^_v:; 3 £ .ei-. erators so that the ■ V / 'ec.'ieLkraft from the 3-eiiäuae to the eatsiu ^ re lic er step - .. "er den Iiam .." Jber ain Ύ-ivhxxidwi ^ Bütelle ir.; ißeLerL ueiieratoa- ^ eiiäase mid elastiBC-ie :: i ie-st .'- tit ^ e \ .ir ^ dczrvvjri ^ iui ^ oeaer ^ ie -transmitted, so there .; ", the üasj ^ -i- ^ sei ^ ergie des An. "CriebsmoT: ors who * the" Unv. "UOiiugtij.eraxor aii'ure,: nit the with Iiesoiianzxreousjiz

G-estäi ^ e. "VerTjcaiiden. Is. Üiitersucliuii ^ e-ji sr ^ a-

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bon, - that a stable frequency of the ochwingarigsgenex'ators set and maintained with rotating unbalance masses if the! frequency is slightly lower, half of a JiLe sonaiizp unkt it lies. FoIgIicla becomes upright maintenance of the constant frequency of the Generator slightly below a resonance point of the üystems operated.

Translated into Pralrciacne means that the _overall: wished Schwiiigungsamplitude of the elastic vibration is achieved in the linkage in the manner that the -Mrtriebsmotor is adjusted so that the vibration generator operates at a frequency which is slightly below a resonance point, but in the Resqunance range, with which it is achieved that the desired amplitude of movement for the fluid drive is established. Under such conditions the state of oscillation is stable and the tensile forces that occur - in the oscillating linkage "are kept within permissible limits. This is an important property of the invention.

A very important and beneficial quality is shown when applying the inventive working

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wisely with a frequency below the zasonanzpunlstes., namely when suddenly the load on the pump drops, which occurs when a large gas bubble blows through. Several valves, which have worked against a relatively heavy column of liquid, in this case do not accelerate the system and thus jump over the resonance point. This is due to the fact that as the frequency increases, the losses increase considerably, as they increase. Frequency. the amplitude increases sharply when the working point: lies below a resonance point »As a result of the; As the amplitude increases, more fluid is absorbed and transported, so "that the vibration generator and its drive motor are kept in a narrow frequency range or speed range which is still below the resonance frequency. go through ^tf and see yourself being destroyed, even if the long, elastic linkage "which oscillates at the resonance frequency, when the load changes, a reaction is exerted on the drive motor, which causes a change in frequency or speed" Invention prevents that

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Oscillating Pumr> eiifi: est «nFe the drive motor in urii-ev / imsehtor! feely detuned, iiiäe: a AnwaeLiseri« ier AriplitttSe - ⁼ iie additional load causes, as well as the load once

has fallen slightly. 5as let aloo that the lietrieif mxteriialö eiiies HöoGiiarizpuiiktes ausoxrtatisc ^ a Stabilization, des oeixv / iHfcivor ^ aii ^ ies iierbeiilkirt,. i-; as Tii is the case, wena exactly in ££ resonance point or πχτ one work is being carried out above the Eesonaiizpunictes »

When the elastic sciiv-zingmig pumps were used in Bolrrfeldern, it was shown that the drill rods 2 -, can be disturbed if a standing xtesonaiizwel-Ie is generated in it and it is possible that the Sch7; ixigui ± £; 8 -frequency rises to the point where the borehole is closed during the whole time of the time-consuming repair of the Piuap'e. In this context; It must be noted that the tubes commonly available in the trade are neither dimensioned nor made of an alloy. Steel are of such high quality that they can withstand the tensile stresses occurring under conditions of itesonance and include a certain safety factor. So it comes to & S.B to tear off the drill when it is used in the Bpln'fela ..

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χ L'as lAbreiöeii of a liohres can be

. .ansprucnungen done on two "L -different Endangered Species The bracing in the longitudinal direction is f / A, wherein the Lan ^ f s zutraft uua-A ^ the uerscnnittsflache of Hohres means occurring in Kohr longitudinal traction is Y · -.. ^ - -, v / QQei Y is the elasticity sinodule of the liohrni material,

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the length of a length of the pipe in its cows condition and . \ 1 mean the change in length under tensile stress. If the tensile stress f / A has reached a certain level, the elastic de ^ aiUij. ^ Of the material is exceeded, and the ¹ itonr does not pull itself onto its full grain during the jiit load original length üusa-iimen. iis of course, clal3 the LU; _. oöaiisprucnung beyond the elastic limit value nicxit £ ja _L elaüü € ii v / ground icaiui, - uiid it is also of importance that no vibrations occur in the real resonance point, whereby the tensile forces such Increase :; determine that the limit value of the elastic elongation is exceeded "ii.;"

On top of that, however, comes the much more dangerous one jirinüduiigsbrUGJi- the high-level pipes, who

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saclie has in the fact that the material is constantly stressed beyond a permissible limit value. In the case of the present i'all, the permissible limit value can be defined as the 7th that the pipelines can withstand in continuous operation without fatigue failure occurs. Experience has shown that with the best commercially available pump tubes, a safety factor must be taken into account, which is intolerable if you want to work with a resonance frequency, and on the other hand a generator is used, the output power of which is suitable, the tube and in the tube down to the lowest Supply the valve with the energy required for pumping. It was also found that the strength limit changes depending on the mechanical properties of the pipe and that grooves or grooves in the surface of the pipe as well as differences in the quality of the steel composition have a considerable influence on the strength. it is seen for the! strength level of importance, even over long periods of time if the pumped out of the well "Jj ¹ IUssigkeit attacks the pump tube. The load limit of a certain pipe string can easily be determined after a few experiments in the drilling field, whereupon the maximum possible

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occurring tensile forces in the drill rod are set in such a way that they are roughly with the so determined, permissible Load limit coincide. The invention thus also has the limitation of the frequency to one vert to the content, which is sufficiently far below the resonance value lie ^ t, so that the tensile stresses in the RohTgestange or occur in other sucker rods, not beyond the assumed or in some! "all certain load limits of the pump rod used in the borehole go out .. That means that in the vicinity of IT the liesoiianzfrecjuenz, so already nane the crest of the Pi.esonanzlcu.rve is working, but with 'sufficient Safety distance from the exact Hesonance value, with soft the zagic forces so increase that the sucker rod or other * that transmit the elastic vibrations Seventh to be destroyed. Hence it is task and also peculiarity of the invention, the stretching and stretching strength limit the elastic vibrations to values, so that the durability of the material is not exceeded, which is often the case with Yersucnen in the drilling field itself ouch bestiiruaen iüt. JSrmudun ^ breakages uiüsseri thereby prevented that the tensile stresses and strains on

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Verte be limited to below the permitted '3-rensv / erte lie inden the pump is operated a nit c'reouenz that - although in the rähe the iiesonanzirevjueriz Ije ^ t, - however, si eh unterliRlb of Resonsnz-Sehei toi ", f rtes is thus below the daily additional stress.

./ Furthermore it was announced that a ^ x ¹ OiBe Amoli-. tude of the rhj ^ thuiisehen delinung di ^ .irksanikeit der öcnv; inguii> jstransmission in the ruaipen ^ estänrs .. ".. 'e.-i / i ßie Amplitudes of the elongation the ratio: aä3i _o high & n ^ .fcrte of

ο
over 1400 kg / cdi "is in fine such long libertr & ö '^ ¹ S ^ss y ^s ' t ^eB1 ^ ie inner Dssi]} £ wci- £ or c: ie elTsti.sche hysteresis, the i ^ i; tahl itself occurs, very; το £. This leads to a considerable abn- imiae c.er;: c _{J. J} .A "in £ ^- Uijgs ^T /, ^r elle bsi very deep-reaching pumps and consequently diminishes the Punpenvrirkim ^ s. ^ rad "The" Jiitersuchun gen-revealed, ds2 one to ^ spannuii.i of 1400 kg / cm ^ iror ^ u. ^ sv.'eise as upper Grensv. v.ärd admitted ^r ert, vras by erreichbi.r is, dai3 the ochvingtuigaaüiplitude through eiitüprac.-ranae .iL.ietellurig aer ocliwingUii ^ Bfreq.uena bc ^ renat v.ird *

In accordance with the jl ^ I'iiuTüiig-Lot so make sure that there are no resonance conditions zxx monkeys that

reicaeiic. v; eit are located away from the exact iiesonanzpunktes so daö üie Jennun ^ sTCCiiselbeaxisx ^ rucriungen (to ₁ J and AlCr-ite, aie the statiscnen tensile force 'are superimposed) lb dea Value of 1400 kg / cm' are ehalten '^.

In ociiwiigiiigsp'oi'ipen the elastic un ^ sbev.eguiig iia vibration transfer determines: · - gongssystera dle üj'rve ^ uii ,, eg large, that of the liquid, given to vira. Consequently, the just described limitation of the dehiiaii _ü .iJiiöc ^ ö't -. «Ör'be aie 'xiiti ^ ity of the Jaittriebselemaxit-e is limited to' crte, the lower than the deserved vertices .lif -gene. ') iioes rroble.ü gev / iiint oiedeutang, -veil die zuapleiutu / i;: .-, the a.if the za pumping fluid transferred virci, "-v5g £ ii der .Jegrensun ^ der Zugbe.a ^ suru.cliung in? umpengestüii ^ e vemiiiaert Ävird. Ier impulse, however, the aui ¹ the i'l 1 ".SSIg ^ -ViT; "ibergeiit, is. aa ^ erdeiü on the Jielite and the Viti.xosiua.-u der!" l ^ iBsigkeit dependent. This means that the outside energy, and thus the work on us, is too coarser, the "stiffer" the liquid is. .ltalich, v / eiiit there is a J'lüsöi ^ ei us column uit Iiojiein I-.ipedanzv / ert in the pipeline. The im-

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Pedance Z of the liquid is composed of the product p · c, in which O means the dielite of the liquid and c aie "velocity of membrane propagation in the liquid. By urite gases of the liquid to be pumped, whereby the liquid density increases, the increase impedance and thus the "stiffness" of the liquid so that the pumping effect is improved. the jirfindung therefore sees the degassing of the liquid before before "entering these in the pipeline by the fluid first of all-a certain \! eg on the outside must flow down the pipeline before it can enter the pipeline, or by providing a zone in the pipeline in which the grass contained in the liquid can exit the pipeline through gas-permeable walls.

According to the invention is therefore provided to increase the density of the liquid to -Vorbes.serUiIi ₆ 'of the pumping process.

Your increase in the density in the column of liquid is, however, set a cross, and it was out

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found that the amount of energy which is supplied to the liquid during the pumping process can be increased in that the drive elements for driving the liquid in the pipeline have a certain distance from one another. The length of the liquid column above a drive element, which is to be driven by this drive element, depends on the liquid impedance. The lower; the impedance of the liquid to be pumped, the shorter the column piece, which is set in motion duroii the oscillating drive abs element. 'Me were .äiatdeokungen to the effect that it is disadvantageous and brought a Upward running Strömungswidei'standes with si oh, when the driving elements were closer to each other than it by the Iiänge äex respectively from a drive member accelerated Flussigksitssäulen has been set, ^T #erm d " r distance kürae ^ is chosen, this only means that a drive element moves together with the liquid that was accelerated by the drive element located below it, and a creates an additional flow resistance without any corresponding use. For those with i ^! Pumping down to fördenaden fluids elnsciiließliQh ve, r-

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GIs with a relatively high gas content should not be less than 1.5 m in diameter between the individual drive elements, which is a preferred distance for liquids with relatively high impedance values, e.g. 3 . when? uini ^ s well degassed oil or leg pumping "\ ^r ater, lcönneh the Antriebseleiaente v inside the pipeline, esentlieh greater distance have Venn, jedocii the spacing between the drive s element s au ^ Ross> ird arises "swisoaen'ihnen, a fluid column scan, aui" which only a small driving force is exerted. Meser section must. α arm are driven by the other ü'lüssigkeitssaule, which means a greater jde-vv'eguii ^ of Antriebselerientes and folglicri ^ ine _o £ rö iere tensile stress in the Übertragungseleaienten of u-estänges. ". _f ^r ie determined" was ,,. The results for pumping a large number of liquids were dissatisfactory when the distance av / i see the individual drive elements significantly exceeded 30 m, so that they were considered an appropriate upper limit for the distance between zv / ei drive elements Distance of approx / a 30 in resulted in *.

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If one turns again to the consideration of the oscillation impedance of the liquid, it can be stated that, as a result of the pressure decrease in the liquid as the liquid rises inside the pump tube, the effective impedance within the liquid column is relatively low, so that the pump vox is more effective when the puijpenhüb the elastic. Scjiwiii ^ uiig is relatively large. There. the Dehnuii ^ sbeälusprueliuiii, iniOlge the dcjiv / ingUii ^ en im Puxapengestnii ^ e them,:! as the product of the pompenium and the frequency, the frequency must be relatively low, and the output must be large. Aiiders expressed üer iuiapeniiub karni are then selected to be large when the Arbeitsi'requenz is selected low, which consequently means a great ^ e ".rellenlänge in the pipeline. This lukewarm öicii erreiciien, ds.3 as ^ ^ ugbeax-sprucuun. in aer iionrleituii _£ , remains verisiaiig low for a given amplitude of inclination

düi pumping miuxels ocmvonien bee.rs advantage ■ & darcngefüurt -v.ärd, v / enn dj e frequency the 6Ciivd.ii ._: uiigen remains below TOO Hz, so that according to the invention Vibrations with a frequency that is smaller

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ale 100 Hz, in which case it is relatively large oscillation amplitudes the strain in the sucker rod remains low.

The drive elements deliver energy to the column of liquid in the rhythm of the vibrations, which accelerates the column of liquid. Since the acceleration at a given value of the tensile stress in the transmission links is a function of the square of the frequency, ie the acceleration is equal to (2 "ψ f) x",. where χ represents the oscillation amplitude of the movement, the frequency must not be too low so that a certain pumping effect is achieved, and tests have shown that when pumping most liquids with the help of the oscillation pump, the frequency should not be lower than 4 Hz. A further feature of the invention can therefore be seen in the fact that, in order to obtain sufficient acceleration forces, the frequency should be at least 4 Hz.

To be able to work with frequencies greater than 4 Hz, it is advisable for most pumping systems to use a harmonic to the fundamental frequency of the standing resonance wave

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to work. Am. The feature of the invention is therefore to be seen in the fact that the frequency generated in the / elasü see sump rod is a harmony to the fundamental frequency.

In order to achieve good frequency stability in the generation of the standing wave in the elastic transmission members, a cardan shaft is used to connect the drive motor to the unbalance masses of the oscillator, so that the drive shaft of the generator is opposite to the. Drive motor can move. The oscillating circuit, which is made up of the pipe rods, has a reaction, caused by the reactance of this pump pipe rod, on the generator, so that the unwanted masses are stimulated to revolve at a speed other than the set speed. The wave propagation in the pump pipeline is consequently not entirely uniform, and it can at least be explained in relation to the rope by the fact that the liquid is only driven in one direction, so the drive elements act in the manner of rectifiers. If the vibration generator *, as already explained in detail, does not vibrate with the exact resonance frequency of the system,

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■ ■■. ■. ■■ '■.; - ■ -.2.6 -.- ■' ■ ^: -

stands between the oscillation of the oscillator and that of the vibrational load, so the elastic pump rod, a phase shift. It follows that the vibration generator does not run at a constant "speed of rotation" works} in other words, the 'angular velocity of the revolving haters is non-uniform. Bies also acts as the instability of vibrations in the elastic linkage.

Due to the "soft" drive that is commonly used of the vibration generator with belt pin and The vibration generator can drive belts that use the rotary motion execute superimposed torsional vibration. On the other hand, a rigid drive such as a drive shaft the vibration generator can also be driven at a constant angular velocity. To do this, however, must a drive shaft can be used that is a very has high torsional stiffness. Cardan joints will be still needed so that the vibration generator opposite swing the drive motor in a vertical direction can. The torsional stiffness of the drive shaft assembly then keeps the vibration generator at a reasonable level

bad original

• constant speed of rotation, so that the delivered by it Vibrations are uniform and in the sucker rod create uniform waves. Change the vibrations thus neither according to their phase position nor according to their amplitude or waveform, - what happens otherwise and what the effectiveness with which the drive elements, transfer the kinetic energy to the liquid column, is decreased. The use of such a drive shaft instead of the known Hjaneri- and Eiemenscheiben arrangement means a considerable increase in costs, but is because of the associated and discussed above Benefits shown.

The stabilization can be further improved, when a flywheel is placed on the rotating system. The flywheel can be used both directly with the vibration generator be connected, but it can also be to an uiierwütiselite mass enlargement of the vibration generator to avoid on die'Antriebswelle} in the direction of power flow seen, in front of the first universal joint, put on. This drive shaft system can then be connected to the drive motor directly or via a Hiemen-Biemensheiben arrangement.

1098 3 3/04

to be driven.

Vibration discussion

To those who are familiar with the problems of acoustics, and also to others the understanding of the To facilitate the invention, the following explanation, in which certain terms are explained, is believed to be important.

With the expression '"iOnfrequency oscillation" is a elastic oscillation, i.e. a periodic elastic Deformation either ^ in the longitudinal direction, in the lateral direction, referred to as rotation or twisting or the like, which is generated in a body or deals with a certain Propagation speed through a medium propagates. If these vibrations in the longitudinal direction run or in a medium or a component with a constant elasticity constant and more evenly Mass distribution produce a longitudinal wave, it is is a transmission of vibrations. Independent of the frequency of the ion vibration transmission are the

1098 33 / 0'43-0

6AD ORIGINAL

same mathematical formulas, and the s / I dealing with them Science is vibrational science. aside from that there are elastically oscillating systems in which the mass is concentrated at certain points and in those too Locally concentrated elastic elements are present, which causes a localized effect that either with elasticity, elastic modulus, stiffness, 'stiffness modulus or spring action, which is the reciprocal of stiffness. happily are these constants, if they are effective in an elastic oscillation system like that according to the invention, comparable with the corresponding sizes of an alternating current oscillating circuit. Both in a system with continuous distribution and with concentrated quantities is the mass with an inductance (coil), the elastic spring effect with a capacitance (capacitor) and equating friction or other pure energy loss with resistance.

Because of these correspondences, the SJohwingungssystera according to the invention with its mass, its rigidity andj its energy consumption; and also in relation to

f 09833/0430 bad original

his vibrational energy transfer "with one - electric Resonant circuit are equated in which the mode of action of the individual parts examined, modified and computationally with the help of known formulas of electrical engineering

j -

can be determined.

Proposals have already been made to understand the system as vibrations of individual individual parts that vibrate as a whole. However, this does not meet the advantages of the elastic body vibrations according to the invention.

Since the elastic vibrations are related to the mass and the spring forces of the system, which are comparable to the inductance and capacitance of an alternating current circuit, completely new explanations can be given for these mechanical processes. The size of the acoustic impedance is of particular importance in this approach. Impedance is the ratio of the force that stimulates the oscillation to the resulting movement quantity, i.e. it is comparable to the ratio of voltage to current. In such a vibration system , the impedance is equal to the mean "damping times the propagation speed of the elastic vibration.

109833 / 043Q bad original

In the context of the invention, the magnitude of the impedance is especially important when ^r ireinstellen or connecting surfaces of two elements are present, if an acoustic Scnwingung to be transmitted over a connection area ', reflections can occur, which are caused by different .Impedanzen. It is also important to pay attention to the impedance when optimizing performance in a system. When the impedances are matched, the power transfer is most efficient.

An important property of these oscillating circuits is that they can transmit great powers, if they have a high "Q"] factor. The quality factor is the ratio of the stored energy to the energy lost per oscillation. In other words, if a vibration system has a high quality factor, it is able to store considerable vibrational energy, while alternately keeping it constant Energy share is supplied or withdrawn. On the Related to resonant circuit sizes, the quality factor is the ratio of inductance to resistance. Also means

109833/0430

BATH ORIGINAL

- ■ .32 -

a high quality factor that the amplitudes of the oscillating system are grois.

j .: Some definitions are given for the following:

In mathematical. Expressed in terms of quantities, the impedance in an elastic oscillation system is the complex quotient of the supplied. Excitation elcraft and linear speed. Dag corresponds to the electric:. ^r ert the impedance. The corresponding mathematical "expression

for this impedance Z = R +. ' -1 (2 FfM - ——),

2 ff f C

where K is the oscillating mass, G is the elastic spring force (the reciprocal of stiffness or elasticity sraoduls) and f is the rf oscillation frequency.

The resistance is the real part E of the impedance and indicates the loss of energy, e.g. due to friction.

The reactance is the imaginary part of the impedance and sets from the difference between the inertia reactance and the reactance the spring force together.

The mass reactance is the positive imaginary part the impedance, which results from the size 2 /? fM. this

109833/0430

BATH ORIGINAL

corresponds to an inductive one in the electrical landscape Reactance, as well as the mass compared to an inductance can be. '

The reactance of the elastic spring force is negative Imaginary part of the impedance resulting from the value

- can be calculated. The reactance of the elastic pe-

2 / TfG. ■

the force corresponds to a capacitive electrical reactance, just as the spring force itself is comparable to a capacity.

Resonance is then present in a resonant circuit, if at a certain frequency the reactance (the algebraic Sum of the mass reactance and the reactance of the spring forces) is Hull. The oscillation amplitude is below this condition is only limited by the resistance and represents a maximum. In this particular one Fall will be for the acceleration of the oscillating masses no driving force is required to overcome their 'inertia.

An essential property of the resonant circuit according to the invention is that enough additional reac-

109833/0430 _{aAn Λ}

BATH ORIGINAL

- "34 -

dance of the spring forces is provided so that the mass or l'rägheit this hate would not require the different bodies in the system, the .., System too far away from its resonant frequency .wodurch a great uieil the driving force to vibrate to offset. For example, a commonly used vibration generator a housing or! Supporting structure in which verden generated with the help of the vibration "the devices are housed. This tfraggehäuse IIR / t mass or l'rägheit, weiw itself. This still so This inertial mass can have a disadvantageous effect in that it uses up a rope of the sciiv / ingenergie in the form of a block impedance to accelerate and decelerate it Reactance at the resonance frequency is counteracted. If such an acoustic resonance circuit with a corresponding capacitance (elastic i'eder reactance) is used, the block impedance is automatically switched off at resonance, and the oscillation generators can switch to the 3e, i.e. the resistance part of the impedance , work.

10 9833 / OUO

BATH ORIGINAL

;: .. G- _{eie c} veiitlicii, it is advantageous to use the vibration excitation with ".low impedance (HocM'reouerizscliv / iiigungeii) anr, ukup.peli>i>. Unfavorable iiii% an £ transferr £ guiV; s conditions SU b-come, with a high impedance value then present in the working point (strong vibrations). The resonant circuit acts dam-i additionally in the manner of an iransforriator, the so-VOIiI the " the xi.work zone favorably designed «

A SChv / inguiii-sresoi-anzsysteiii wirä to dGfLVjiiirrimicserzeugmig at d "r invention with a elastisclie_a link in connection mx a SclrAingmxgsanreger with surrounding! • let verv / eiiäet. This connection has a number of advantages. For example, with the help of a rotating Hasse oscillating generator, it is possible to adjust the jiiii ^ an ^ s power and the Piiasenlage in order to adapt them to any changes in the load on the resonance system, both with regard to the imaginary part of the impedance also with regard to their heal part * This characteristic is very advantageous, since the oscillation oscillator easily changes the. Bola-stungsänderurigen can be adjusted.

1098337 0430

. BADOBiGJWAL

■. ■■ ^: "■■. ■■■. - -36 - ..:.; ■■; .. ■.:; - ■

Here it should be noted that this advantage is of oscillators circulating with "mass from its connection ■ with a Reaonanzschwingungskreis, ^said: two elements-the complete vibration system represent .. In other words, d 'r vibration generator with circulating mass is on. the oscillating system "adapted;" and this combined oscillation system in turn is adapted to its load. ,.

. Η energy farther produce; am such a combined system has the advantage that it is more effective and / eciiseln in working conditions a larger Beharruxi ^{r comprises at "The oscillator with umleoif spinning mass, in this matched arrangement of the load can follow uno! If the absorption conditions for the vibration energy change. The oscillator with rotating mass changes its phase angle automatically, that is, its power factor, when the Virk component of the impedance of the load changes. ■ ■ »

Another important property that makes it beneficial is to adapt the oscillator to the load

109833/0430

■ and to have the necessary performance developed by him is that he also reacts to changes in the imaginary part. the impedance of the. oscillating devotion during the work process can be adjusted, 2. B. .. by the load. Inductance or capacitance added to the oscillating system, the generator adapts itself to this change with the rotating mass. The check-ι-adaptation often .erfolgt on by automatic l ^ requeiiaänderung due to Poickkopplung. dasUrehinoiaent of! Energy _t the rotating mass of the eenerators drives. In other words, if the imaginary part of the impedance of the load changes, the ionana point of the part of the entire system that is in resonance changes automatically "certain torque load, with the oscillation-0 s ai hat or driven by an iCraftcLuelle - ^ i

© Uigens stick the .beta.-eiierators with surrounding mass a certain degree by the generator 2Ü ^r samiäen be the Heso.mirxzkreis beatinmt "" Ίϊΐβ already explained in einääelnen ie until 2u version fits the! Combination of ä'öhwing-

BATH ORIGINAL

- - ^: ■ ..- ■: - 38 -.; ■■. ■ - ■ .. ■ -. ■ ■■ '

Oscillator tilts the sonance system to the different types of shiftable TJia ^ ebuja ^. The jrii-cidrnif :; thus contains the generation of a vibration, whereby a special "with the result" Eueaiaiaenhaiigenae .uifgab ^ a arise, aie basoi.Jirs d &.rii-;: u ε ^^ η six_d, ^r ./i-2. a oh pr -oprocess, which rrlOrd ^ rliciis deh'.vii'u-m'.gseriergie Eiu will, canoe * ifti;: ip3daii- "

.Jiese ^ reis ^ ro'iien- iailssei. iu i3'eeis; 2i.ü * cer ".. 'aise

be iiiert, äajiit die -irfiiucrarLi-, wirxcsaia durcngefalirt v. ^r sr-

■ Other Herlciaale and advantages-of -ärfixiaurLr, geiien. from the following description of in the drawing illustrated examples.

! "" ig. 1 a longitudinal section, one in

id inserted? tiape;

Fig. 2 partially shows the equipment standing on the ground to drive the pump im öciinittj

Mg. 3 a top si ent on the-3.cIr.7iri «" uxigQ-

j ^ ifc, · 4 one Seiteiiansicnt des in the Jj ¹ Ig. 3 shown BahvringUii in the direction of the arrows 4-4 »

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-ιΤΐ, _: < b eliien longitudinal section ciurcii a liolir-. . coupling piece,. "i: i velcJnes a 'liückscnladventil is built in, and

J? I,:. .6 a .uiu ^ ramn of a typical Kesonanaicurve, in v.-elcJies eier work area eiii: -: eEeiclmet ^ is.

. ία the figures of the Z eichntcig is a erfiiidungs, r; e m3.de punpeinx-iciitung * shown. The base plate is "provided with a holir lining 10, which is provided by a Zeiaentrinr; 10a uu £; s", while all around with a distance aur iiohrauukleiauiii: 10 within this, a linkage for the transfer: the stanchions and a "i -oiaprölirleitung is located, which in the embodiment shown consist of eiiier atälilemen? umpenro. "irleituii ^ 12. "The Auslcleicluxij 10 is, \? Ie shown at 13, stranded with Lücliern, and these holes also extend through the surrounding cement belt: up to the production zone, from which this emerged from the Pi &. 1 - The Ilohr lining 10 extends down into the borehole through a concrete slab 14 and a Pundaineite slab 15, and a Abscaluss head 16 is placed on the extension pipe 10 at its upper underside above the ground his

109 83 3 / OUO

upper opening is a pipe connector 18 -screwed ', with which in turn the housing 2Q of the vibration generator G- is firmly connected. The pipe at the end piece 18 has a Outlet opening to which a drain line 19 is connected is. The vibration generator G- has a "housing 20. That carries several volute bodies which, as they circulate in the housing a viechselkraft acting in the vertical direction generated by the generator via the pipe connection Transfer piece 18 onto the upper linden tree of the Puiapen pipe 12- will.

In the generator housing 20 of the generator G La, ger used, which carry two horizontally parallel V / lines 23 and 24, on which inside the housing 20 each sit a gear 25 and 26, which are in singriff with each other. The shafts 23 and -24 are on both sides out of the housing -20 and wear the same TJnv.'U-clit body 27, with which rod in the pump end (i: a in this case the Pump tube 12) the desired elastic expansion vibrations caused when the rfchv / ingun ^ sgenera-

rnlt ■ '-' ■

gate is activated during a certain speed, so that the generated frequency is below the exact resonance value of the pump pipe system remains.

09 8 33/0430

BAD OWGIHAU

1853370

■ Vie the fig. 2 S5.aigt _f is the © Well © 24 üfeer- a "cardan joint 2S, © in WeI lens tüolc 2 $ and" another Kaa? <$ Aa-30 Mt of an iattriebswells 32 Ts ^ feunieii, etie entireist του, der Aatriefcswaii # a @ s Hüto ^ e öd ^; © r> how inclined j practice ^ Eiemeiiaoiitibea and Iligmea 37 τοίι one or 56 äagatrifiBeii wiafd * 23 © r Mötoa? stands on ed «nem Betonf-uMafiiMit" 38 * on the anoii dis Q & agraMe & konstralc · »tiöa 59 for the Lagermig des ¥ ellea, stüöl £ g 3 & aitg © braö3it is * M ©" v » ^r © ilö 52 preferably wears noeli © in äeJawuiigrad 40 »

The liiiwuclitlskörper 27 siad aueiaander ia auög © riöiit © t, that they move in "proper biciittmg mitfeiwaiidär-", so "that 'sioli liire in Bealcreeiiter egg turi ^; effective zeatrifugaHsraftkoapöna / add the evolving force. hurriedly, there are others who run with dea,

in contradiction he converts HiöJatung to one another, so that the centrifugal ' Kraft components ran up against each other *

On the Köpfstüök IS des Auäkleidungsrölireä is one ElastiiSöiit spring device 41 mounted * which the Sumpemr ear rod and the Söiiwinguiigsgenerator Q- wears “On one

109033/0430

BAD OfflGlNAL

. ■■■■■ .. ■ - .-. ■ - 42 ..- '- ■■■■■■;

Grunäflanseh 44 »which is screwed with a G-ewiudeansatz 45 with & βϋΐ- · ^: / ■ ->■""head piece 16, a lower plate '42- ^: , ^{:;>: t} 'is attached. Y on the plate 42 is screw support endruc & ~ ^': ^ springs 46 from an upper to the upper hands lat-th ~ 47 -''- :. · is The plates 42 and 47 are connected Bol-AEEN 48th miteinab.- · - '' of the connected, that determine the distance between the two plates: ■ wherein, however, the upper-plate with respect to ^r · - the EohranscxiluBkopf Kejin move the lower 18 sitzt'ander upper plate 47 'and the. Vibration generator Cf, which is attached to the tube head, and the pump tube rod 12, which is suspended from it, are supported in this way on the springs 46. The seders 46 are relatively flexible and thereby protect the lining tube against the vibrations In operation, the aim is to generate a standing resonance wave in the pipeline linkage of the pump and to transfer sufficient energy to the main linkage system so that the linkage system moves at its upper end with a large amplitude of movement. That means that at the upper end of the Hohrieituhgsgestänges, at which the ecliwin ^ Uzi ^ sg-Sasrc.-tor t,. ^ - gesöhlOBsea is, there is an antinode for the movement and that there is an oscillation, sknode a quarter

1DSS33 / ÖUÖ

BATH ORIGINAL

■ ·, · η r-

.- 45 -

Adjusts the shaft length further down in the pump tube rod. However, since the dcirwingungsgenerator on the upper jitide of the Ilohxleitungsgestänges represents a large mass, the first Schwirigungsioioten moves further up, and also. J.-st no very large amplitude of the movement to be maintained at the side of the pipeline. Us is therefore desirable, as .If already stated in the "SA Patent 2,902,937, the sciiwin ^ enabled system from the vibration generator _fr; of the upper plate 47 and the springs 46 abzustiuiüeri so, it dais si cn in Jirbeitsfrequenz of Vibration generator G-located in Hesonanzxreciueiis.

The JLuschluif flange 45 surrounds the pump-in-tube rod mix distance, uiiä in ilim is preferably one with thread provided through-hole attached through which there is access to the sixig space 52 of the borehole whose Lweck was explained below.

The jiijigrauxa 52 is; with a tubular seal 54 sealed above the outer support plate 42 and tight mix to the Ira ^ flarisch 42 screwed. Besides, he is at his obereiu. iaide with stuffing boxes or other sealing

10983370430

equipped against the pump tube rods seal, as shown somewhat schematically at 56 ^ · indicates is.

The resilient AbstutzTorrichtung 41 is with a Indicator for the oscillation amplitude 60 equipped, which consists of an arm attached to the lower support plate 42 61, which extends as far as the upper support plate 47, and is provided there with a pointer 62. The rash of The upper! drag plate due to the elastic vibrations can therefore be caused by the movement of the support plate in relation to the Pointer to be observed. Bs can also be more precise for this purpose Control devices may be provided; these places but does not constitute a rope of the invention.

The pipe rod is composed of several individual sections, which are connected by means of coupling pieces

are
70 connected to each other ^ with the coupling pieces being enclosed by one or more spacers 72 "made of rubber, which fit tightly around the pipe and are equipped with several passageways 73 for the passage of the liquid to be pumped and thus keep the pump pipe rod in the middle of the lining pipe .

1098 33/04 30

BATH

Some of the pipe coupling pieces 70,. but above all the one closest to the lower end of the pipe, have non-return valves and drive elements for driving the liquid and are spaced apart from one another in the longitudinal direction of the pipe, as has already been shown in the previous cable of the description. Such a coupling piece is in an enlarged view. 5 shown. The coupling sleeve 70 connects the end sections of two pipe sections to one another. A largely tubular valve body 74 is located within the connecting sleeve 70 and the gear sections of the tubular pieces to be connected. The Ventilkörpex 64 is provided on its outside with a recess in which it is a rubber ring 75 · encloses and is compressed when the connection between the two tubes is made to set so cien valve body. A pipe section 79 with a central longitudinal bore 80 is inserted into a central bore 78 of the valve body, through which a long bolt 81 extends, with which a lower and an upper rubber valve plate and 83 are pressed against the ends of the pipe section 79. In the longitudinal direction what "stretch through the valve body

also passage openings 84 on the underside of the valve are free, i.e. from the rubber cover plate 33 are not covered, but open out on the top of the valve under the rubber cover plate 82. The ironic formed upper surface 85 of the valve body, in which the passageways 84 open, and the likewise conical lower surface of the rubber cover disc 82 correspond to FIG their angle of inclination to each other, and the disc 82. acts, in that it rests on the surface 85 of the valve body or stands out from it, as a valve. The area 85 serves as a valve seat. The length of the piece 79 is chosen so that the öummiplatte 82 against the surface 85 of the valve can rest and thus the passageways 84 can be closed, but that also the plate 82 can lift so far that the mouths of the passageways 84 are free and a flow of liquid through this and to the side: around the valve Plate 82 can step around in the overlying Rolir.

If the veritil plate 82 is made of a rubber, its Hardness in the Shore hardness scale between the vertices 40 and 70 lies: is made 'and the' i'eil that

BATH

. Valve seat 85 is formed from a plastic material such as e.g. XyIon, there is a .Antriebselement with which the necessary kinetic energy is communicated to the liquid flow in a very effective way.

The exact mode of operation of the vibration pump is already set out in the patent specifications mentioned and will not be repeated here in all details. In short, the vibration generator G- is his .Drive motor with the frequency driven by a standing resonance wave in the elastic transmission system is generated, so here in the elastic sump rod 12. Starting from the generator, continuously alternating 2ug and pressure waves with the corresponding speed of propagation through the pipeline, will be at the Jünde of the line reflects and generates when it comes to the resonance frequency of the pipeline acts, due to interference with the forward-moving waves, antinodes of the velocity (Zones in which the oscillation amplitudes are very large) that are half a wavelength apart, and nodes between the antinodes (Zones with very small vibration amplitudes). on

109833/0430 _fl , _D.

the way move, the reverse clilagveirfcile with the elements 79, 80, 82 and 83 by themselves - under the influence of standingeii shaft up and down in the pipe, taking them at their Movement upwards to close the flow paths, whereby the liquid column standing up against them is upwards accelerate, and with every downward movement the flow paths are opened, so that during this time Liquid through the flow paths 84 'to the top kick canoe. The movements of the valve body take place under the influence of the elastic vibrations in the pipe rod with accelerations that reduce the acceleration due to gravity exceed a multiple, so that the liquid is pumped upwards in this way.

According to the particular mode of operation according to the invention, the vibration generator is driven by its drive motor, -which here is an induction motor 36, driven with a rotation frequency that is slightly below the exact resonance frequency of the pipeline. Fig. 6 shows the relationship between the tensile stress amplitude in the pipeline and the generator frequency for a frequency range around a resonance point «Der

109833/0430

BATH ORIGINAL

The hump in the curve represents the pi-resonance range, and the point at which this hump reaches its maximum is the point of exact resonance at which the oscillation amplitudes reach a maximum. It should be mentioned again here that in the case of a standing resonance wave, the individual half-wave sections alternately expand and contract. The "deflection" is the amplitude of the elastic expansion or contraction and reaches its peak value at the exact resonance frequency * ¥ ie the Pig. 6 shows, the vibration generator is driven at a frequency at which a standing resonance wave is generated in the pipe system, namely at a frequency which falls within the range of a resonance hump, but more precisely within this range below the resonance peak value . From the Pig. 6 it can be clearly seen that by limiting the speed η the Keüoiianz peak value is not reached. The speed range η corresponds to an assigned frequency range r, which is close to, but constantly below the resolution ~ 3pitzev / ertes.

thus keuo standing in the manner set out i ira. Pump pipe long generated, occur in the pipe

109833/0430

■, .. '■■■ "- 50 - ■.. ■

linkage torsional bellies of speed on, in which at the same time have the greatest tensile stress; the Tensile stress in these sections of the pipeline however, it is limited and is below the vertex that would occur with an exact resonance.

If possible, ground the pipe connections with the check valves located therein to drive the liquid at intervals of about 1.5 m to 30 m arranged by choosing the pipe lengths in this way.

Vie already in the previous'! "Part of the description mentioned, degassing is preferably carried out in the invention, if it is therefore not liquids to pump that has a high grass content, what either before the entry of the liquid into the pump tube or during its change by the fuiapenrohr happens through it. Weim the pump in such a way The Ronrleitung is established that sicla her lower -einde a certain gap is located below the absciiitittea, in from the produsing zone the liquid through the

109833/0430

BATH ORIGINAL

• - 51 -

perforated Auskleiduiigsrohr therethrough enters the borehole (see Fig. 13a 3? ig. 1), · can via the pipe end a considerable column of liquid standing (z. B. indicated at 90), and this column is a large i ^l ecause of their G as ^ ehaltes from which then rises within the annulus of the borehole and (not shown) through the opening 50 at the upper end of this annular space via a line is drawn off, üs but may also be such a I ¹ IUssigkeitssäule are generated around the Pumpenrolirgestänge around when the producing zone is not so high above the bottom of the pump tube. For this purpose, a liquid can be fed into the eye space above the pump tube end 3 via the opening 50 at the upper end of the oil space. Such a high column of liquid has the effect of its static pressure that the gases rise and escape at the upper end of the pipeline. In this way, the liquids obtained from the borehole are degassed before they enter the pump pipe at the tube 12a of the pipe string.

However, also because the pump tube is way below the producing zone and the perforated section

109833/0430 _BAD ORIGINAL

the borehole lining is sufficient and the liquid to be pumped must flow down on the pump piping, the liquid is with the vibrating pipe on its outside in Brought in touch. This vibration excitation ^ becomes the "liquid is also degassed before it enters the pipe end entry. Finally, holes 94 are made in the pipeline through which the gas can escape ", if it has already entered the pump pipeline.

To generate a resonance vibration in the sucker rod to be able to, which is just below a resonance peak value, an electric drive motor 36, which can be an induction motor, selected, which the vibration generator and thus the pump piping with a Drives frequency that is a little below the resonance peak elwert, so that the elongation stresses stay in the piping below those that are at exact resonance occur. The speed-torque characteristic of an induction motor has sufficient rigidity for this purpose. First of all there must be a vibration generated in the pipeline that are close to a harmonic the fundamental resonance frequency of the pipeline.

109833/0430

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■ ί

Bas requires; Of course, a duction generator is used, or some other drive element that excites the vibration generator to a precursor which falls within the range of a resonance lobe. In response, the frequency is set so that it is close to the Hesonance Seheitel value, but is slightly below this fourth ^ iti «ig the maximum values of the stresses for the corresponding card. would see aoni appear «There will be we? There are settings "made in order to prevent the araplituele aev elastic stress resistance from increasing beyond a certain limit value, the Bauerfestiglceitswert of the Puaipenrohpgestange., The method is thus · with a drive motor that leads to the weather generator with such a weight and Iielstung _antxeibt; that the (ienera- ■ FCOR constantly miterhalb of Kesonanz-peak value in the range of harmonics · the pumping enr earrings ge rod s achwingt ,: urigeächtet how the load and the i'lüssiglieitssäule veräB-changed "\ lenn the Load of the

■ ■ ■ - ^; - 54 '- - -

tors decreases, v & mx grass in the liquid side column I ^ of the liohrieleitung available lsi », the Iiotorarehaaiil increases as a result of the falling TJrhzahlcharakteriö tile of the engine under external load, whereby the i'reciuency of the vibration generator also increases the frequency ieiiöen many in

ge .. Dadu, reii wii * d the rivers. si £; xvfiit i; i the more strongly driven »which is a higher ^ e; lastLing de © (Jenerators laedeutet, 3-weight increase occurs immediately mid seimell, so that the ]? reetueii2; ari.stieg is faxed immediately, "beiror ^:> the SsBQnana-3eiie.itel ^T nert is reached.

* The unconscious bodies and their focal points are oe züglian des Quersciinitts des Rolirleit'on ^ sgestances so. agreed that with the particular: ', "iiikelgesonwiiidiglcei with which the Sch% -in ^ ungs.cenerator works, the application claims below the fourth from 14-00 / being held. The attached "Jert of 1400 kg / cnr \ for stretching or stretching is the; _ half d-3s (xesantaussciilags between outermost year and outer ster IvQBipr it si on a VollkoiRiienen l> eiinuij.gsscU \ /: uiriing,

109833/0430 OADORiGlHAL

In order to "protect the Puiapen pipe linkage from elastic JJauerbrichen, iSinstell possibilities are available, do the various changes can be adapted , such as by changing the output power άβά öcnviiiguiirsgenerators or the cross section of the pump roller linkage, so that | 3 the suggestions in the number below the The resonance peak value lying frequency range does not exceed the permissible load increases.

109833/0430 ^ D or, «al

Claims (9)

P A Ϊ E I T A Ϊ S P R Ü OHS 1. Method of pumping with a deep pump, in whose Pump pipeline drive elements for the! Liquid - "-" are included, which are caused by pei ^ iodic longitudinal vibrations, which in one connected to the drive elements, with respect to the mass and the visual swing ability continuously distributed transmission linkage generated be "stimulated to move back and forth, characterized in that the; ! frequency of the longitudinal vibrations close to a harmonic of the P resonance fundamental frequency of the transmission linkage is chosen in such a way that the frequency 'just below' the resonance frequency of the - " selected harmonics, with aie amplitudes of the elastic tensile stresses of the linkage below whose fatigue limit can be maintained. 2. Terfahreh according to claim 1, characterized in that that the tensile force amplitude is chosen so that they the Do not exceed the value that generates a tensile stress of 1400 kg / cm in the elastic transmission elements. ' 109833/0430 BATH 3 «Method according to Änsprucii 1 or 2, characterized in that that the liquid to be pumped is degassed. 4. The method according to claim 3, characterized in that the liquid before jjjintritt in the pump pipeline is degassed. 5. The method according to claim 3 »characterized in that that the degassing of the liquid is carried out during the advance through the pipeline. 6. The method according to any one of claims T to 5, characterized characterized in that several drive elements for. Driving the liquid within a section of the pipe be prepared, dsren. mutual distance between 1.5 and 30 m. 7 * Method according to one of claims 1 to 6, characterized characterized in that the frequency is chosen between 4 and 100 Hz will. BATH ORIGINAL 109833/0430 ■. '■■' ■■ - - 58 -. 8. Verfanren according to one of claims 1 to 7, characterized marked that the dchv / iii ^ uiigsträgeruiigsgestange from a Unwuclitgeüerator with revolving Ui-wuclitinassen is driven, who in turn via " one with. the unbalanced mass! ,, directly coupled drive shaft is driven by an I-Iotor. 9. Procedure according to. Ar ^ sprueli 8, marked dadurcn, that a guard wheel is placed on the drive shaft. ftAD ORIGINAL 109833/0430 ^BAD