BRPI1103813A2 - provision for hydrocarbon extraction in wells using progressive cavity pumps - Google Patents
provision for hydrocarbon extraction in wells using progressive cavity pumps Download PDFInfo
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- BRPI1103813A2 BRPI1103813A2 BRPI1103813-6A BRPI1103813A BRPI1103813A2 BR PI1103813 A2 BRPI1103813 A2 BR PI1103813A2 BR PI1103813 A BRPI1103813 A BR PI1103813A BR PI1103813 A2 BRPI1103813 A2 BR PI1103813A2
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- Prior art keywords
- tube
- swivel
- progressive cavity
- coupled
- pipe
- Prior art date
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- 230000000750 progressive effect Effects 0.000 title claims abstract description 17
- 238000000605 extraction Methods 0.000 title claims abstract description 13
- 229930195733 hydrocarbon Natural products 0.000 title claims abstract description 12
- 150000002430 hydrocarbons Chemical class 0.000 title claims abstract description 12
- 239000004215 Carbon black (E152) Substances 0.000 title description 4
- 238000005260 corrosion Methods 0.000 claims abstract description 16
- 230000007797 corrosion Effects 0.000 claims abstract description 15
- 239000012530 fluid Substances 0.000 claims abstract description 14
- 239000000314 lubricant Substances 0.000 claims abstract description 10
- 238000004519 manufacturing process Methods 0.000 claims abstract description 8
- 238000002347 injection Methods 0.000 claims abstract description 5
- 239000007924 injection Substances 0.000 claims abstract description 5
- 230000007246 mechanism Effects 0.000 claims abstract description 5
- 239000000843 powder Substances 0.000 claims description 2
- 239000002519 antifouling agent Substances 0.000 claims 1
- 239000003921 oil Substances 0.000 description 6
- 239000010687 lubricating oil Substances 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 239000003973 paint Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 239000008186 active pharmaceutical agent Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
- E21B43/121—Lifting well fluids
- E21B43/126—Adaptations of down-hole pump systems powered by drives outside the borehole, e.g. by a rotary or oscillating drive
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
- E21B17/1078—Stabilisers or centralisers for casing, tubing or drill pipes
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Lubricants (AREA)
- Joints Allowing Movement (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Jet Pumps And Other Pumps (AREA)
Abstract
DISPOSIÇçO PARA EXTRAÇçO DE HIDROCARBONETOS EM POÇOS QUE UTILIZAM BOMBAS DE CAVIDADE PROGRESSIVA. Disposição para a extração de hidrocarbonetos em poços que utilizam bombas de cavidade progressiva, que abrange um tubo giratório alojado em um tubo fixo que se estende ao longo da tubulação de recobrimento do poço. O tubo giratório conduz o fluído do fundo do poço para a superficie. Entre o tubo giratório e o tubo fixo fica definido um espaço anular onde é injetado um lubrificante antifricção entre a parede externa do tubo giratório e a parede interna do tubo fixo. O extremo inferior do tubo giratório apresenta um trecho com orifícios. de passagem do fluído para o interior do mesmo conectado à bomba de cavidade progressiva mediante uma haste, e o seu extremo superior está acoplado a um conduto de saída de produção e a um mecanismo motriz de acionamento do mesmo. O trecho superior do tubo fixo está conectado a um conduto de injeção do lubrificante antifricção no espaço definido entre ambos os tubos giratório e fixo. Esta disposição permite reduzir o desgaste por atrito e corrosão das tubulações convencionais utiliza das em poços de jazidas petrolíferas onde a. extração dos fluidos é realizada mediante bombas de cavidade progressiva.PROVISION FOR EXTRACTION OF HYDROCARBONS IN WELLS USING PROGRESSIVE CAVITY PUMPS. Arrangement for the extraction of hydrocarbons in wells using progressive cavity pumps, comprising a swivel pipe housed in a fixed pipe that extends along the well casing pipe. The swivel pipe conducts fluid from the deep end to the surface. Between the swivel tube and the fixed tube is defined an annular space where an anti-friction lubricant is injected between the outer wall of the swivel tube and the inner wall of the fixed tube. The lower end of the swivel tube has a hole with holes. fluid flow into it is connected to the progressive cavity pump by means of a rod, and its upper end is coupled to a production outlet conduit and a drive mechanism thereof. The upper portion of the fixed tube is connected to an anti-friction lubricant injection duct in the defined space between both the swivel and the fixed tube. This arrangement reduces the friction and corrosion wear of conventional pipelines used in oilfield wells where the. Fluid extraction is performed by progressive cavity pumps.
Description
"DISPOSigAO PARA EXTRA^AO DE HIDROCARBONETOS EM POQOS QUE UTILIZAM BOMBAS DE CAVIDADE PROGRESSIVA""PROVISION FOR EXTRACTION OF HYDROCARBONS IN PROGRESSIVE CAVITY PUMPS"
CAMPO DA INVENgAO A presente invenfao se refere a uma disposi^ao para a extrafao de hidrocarbonetos em P090S que utilizam bombas de cavidade progressiva, e mais particularmente se relaciona com uma disposifao de tubula^oes de extrafao petrolifera desenvolvida com a finalidade de reduzir ο desgaste por atrito e corrosao das mesmas em pofos de jazidas onde sao utilizadas bombas de cavidade progressiva ou uBCP".FIELD OF THE INVENTION The present invention relates to an arrangement for the extraction of hydrocarbons in P090S using progressive cavity pumps, and more particularly relates to an arrangement of petroleum extraction pipes designed to reduce wear. by friction and corrosion of these in wells of deposits where progressive cavity or uBCP pumps are used ".
ESTADO DA TECNICA E VANTAGENS DA INVENgAO Dentro da arte previa cabe mencionar que habitualmente nos pofos de jazidas deState of the art and advantages of the invention Within the prior art it is worth mentioning that usually in the wells of
extra9ao de hidrocarbonetos, a transmissao de potencia do motor de superficie para as bombas de fundo do tipo “bombas de cavidade progressiva", ou BCP5 e realizada atraves de uma ou mais barras ou hastes metalicas que giram dentro da tubula^ao metalica ou “tubing’，. Devido a que a profundidade do ροφο de produ^ao pode ser de varias centenas de metros ou mais de mil metros, e impossivel evitar que existam pontos de contato e fric^ao entre ο "tubing" e as hastes que giram no seu interior. A bomba de cavidade progressiva utilize ο petroleo bombeado do fundo do ροςο como lubriflcante entre as superficies que estao submetidas a fricfao, vale dizer, entre ο Iado interno da tubulafao e ο Iado externo das hastes que giram ao longo de seu interior. Um dos inconvenientes que provoca a fric^ao entre as hastes de acionamento da bomba de fundo e a tubula^ao surge na medida em que as jazidas de petroleo envelhecem, ja que ο processo de recuperafao secundaria faz com que a porcentagem de agua na mescla "agua-petroleo" aumente ate atingir valores superiores a 95%, causando uma lubrificafao deficiente e，em muitos casos, um fenomeno combinado de desgastes da tubulafao por atrito e corrosao da mesma. Como consequencia da reiterada fric9ao entre as hastes e a tubula^So, e rota a capa limite de protefao que se forma pelo fino deposito de hidrocarboneto presente na agua, e/ou pela injefao artificial de algum produto capaz de formar uma pelicula usada como anticorrosivo no caso que se pratique ο ultimo, provocando a corrosao e a deteriorafao da tubulafao. Portanto5 resulta de extrema importancia resolver este grave problema ja que, como se compreendera, implica consideraveis perdas economicas devido a necessidade de interromper a exploraySo das jazidas petroltferas ate que se possa consertar ou substituir as tubulafoes.hydrocarbon extraction, the power transmission from the surface motor to the "progressive cavity" or BCP5 type bottom pumps is accomplished by one or more metal rods or rods rotating within the metal pipe or "tubing". Because the depth of the production pipe can be several hundred meters or more than a thousand meters, it is impossible to avoid contact points and friction between the tubing and the rods that rotate in the The progressive cavity pump uses oil pumped from the bottom of the ροςο as a lubricant between the frictioned surfaces, ie between the inside of the pipe and the outside of the rods that rotate along its interior. One of the drawbacks that cause friction between the bottom pump drive rods and the pipe arises as the oil deposits age as the secondary recovery process causes the portion to fall. water-oil mix increases to over 95%, causing poor lubrication and, in many cases, a combined phenomenon of frictional pipe wear and corrosion. As a consequence of the repeated friction between the rods and the pipe, the protective boundary layer formed by the thin deposit of hydrocarbon present in the water is broken, and / or by the artificial injection of some product capable of forming a film used as an anti-corrosion. in the latter case, causing corrosion and deterioration of the pipe. Therefore, it is of utmost importance to solve this serious problem since, as will be understood, it entails considerable economic losses due to the need to interrupt the exploration of oilfields until the pipes can be repaired or replaced.
A fim de solucionar os inconvenientes precedentemente explicados, foi desenvolvida a disposi^ao objeto da presente inven^So, a qual permite reduzir de forma consideravel ο problema combinado de "desgaste-corrosao-desgaste" das tubulafoes, tal como sera explicado mais adiante ao descreve-la na forma proposta de realiza^ao a ser levada a pratica.In order to remedy the drawbacks explained above, the provision of the present invention has been developed which considerably reduces the combined problem of "wear-corrosion-wear" of the pipes, as will be explained below. describe it in the proposed embodiment to be practiced.
SUMARIO DA invencaoSUMMARY OF THE INVENTION
E objetivo da presente invenfao fornecer uma disposifao para a extrafao de hidrocarbonetos em po?os que utilizam bombas de cavidade progressiva, desenvolvida com a finalidade de reduzir ο desgaste por atrito e corrosao das tubula9oes convencionais utilizadas em P090S de jazidas onde a extragSo dos fluidos e realizada mediante bombas de cavidade progressiva. Esta disposi^ao abrange um tubo giratorio alojado no tubo fixo que se estende ao longo da tubulafao de recobrimento do ροςο. O tubo giratorio conduz ο fluido do fundo do ροςο ate a superficie. Entre ο tubo giratorio e ο tubo fixo fica definido um espafo anular onde e injetado um lubrificante antifricfao entre a parede exterior do tubo giratorio e a parede interior do tubo fixo. O extremo inferior do tubo giratorio apresenta um trecho com oriflcios de passagem do fluido para ο interior do mesmo conectado a bomba de cavidade progressiva atraves de uma haste, e seu extremo superior esta acoplado a um conduto de saida de produfao e a um mecanismo motriz de acionamento do mesmo. O trecho superior do tubo fixo esta conectado a um conduto de inje^ao do lubrificante antifricfao no espafo definido entre ambos os tubos giratorio e fixo. BREVE DESCRIQAO DAS HGURAS Para maior clareza e compreensao do objeto do presente invento, ο mesmo foi i lustrado com varias flguras que ο representam com as formas preferidas de realiza^So，tudo a titulo de exemplo, onde:It is an object of the present invention to provide an arrangement for the extraction of hydrocarbons in wells utilizing progressive cavity pumps designed to reduce frictional wear and corrosion of conventional pipes used in P090S from wells where fluid extraction is performed by progressive cavity pumps. This arrangement comprises a swivel tube housed in the fixed tube extending along the ροςο overlay pipe. The spinning tube conducts fluid from the bottom of the floor to the surface. Between the swivel tube and the fixed tube is defined an annular space where an anti-friction lubricant is injected between the outer wall of the swivel tube and the inner wall of the fixed tube. The lower end of the swivel tube has a section with fluid passage holes in the tube connected to the progressive cavity pump via a rod, and its upper end is coupled to a production outlet conduit and a motor drive mechanism. activation of it. The upper portion of the fixed tube is connected to an antifriction lubricant injection conduit in the defined space between both the rotary and fixed tubes. BRIEF DESCRIPTION OF THE DRAWINGS For the sake of clarity and understanding of the object of the present invention, it has also been polished with various shapes which represent the preferred embodiments, all by way of example, where:
A FIG. 1 representa esquematicamente urn exemplo tipico de uma disposiqSo convencional para a extrafao de hidrocarbonetos em pofos que utilizam bombas de cavidade progressiva. A FIG. 2 representa esquematicamente a disposifao objeto da presente ίηνεηςδο para a extra9ao de hidrocarbonetos em po^os que utilizam bombas de cavidade progressiva. As FIGs. 3 a 6 mostram respectivamente os detalhes ampliados A, B, C e D da disposi^ao assinalados na FIG. 2.FIG. 1 schematically depicts a typical example of a conventional arrangement for the extraction of hydrocarbons in powders using progressive cavity pumps. FIG. 2 schematically depicts the arrangement object of the present invention for the extraction of hydrocarbons in wells using progressive cavity pumps. FIGs. 3 to 6 respectively show the enlarged details A, B, C and D of the arrangement shown in FIG. 2.
Esclarece-se que na FIG. 1 correspondente a arte previa e nas restantes figuras onde e ilustrada a presente invengSo, sao indicadas com os mesmos numeros de referenda a partes iguais ou equivalentes em ambos os casos.It is clarified that in FIG. 1 corresponding to the prior art and in the other figures in which the present invention is illustrated, are given the same reference numerals to the same or equivalent parts in both cases.
DESCRigAO DETALHADA Na FIG. 1, e mostrado que ο exemplo ilustrado de uma disposifao de bombeamento convencional abrange um "casing" 1, ou camisa de revestimento do ροςο, que apresenta uma boca de saida de boca de ροςο 2，em cujo interior estende-se uma tubula^So 3, que conduz ο fluido do fundo do ροςο para a superficie, formada por uma sucessao de trechos 4 acoplados entre si por unioes 5. Entre ο "casing" 1 e a tubulafao 3 fica definido longitudinalmente um espa90 anular 13. O trecho 4 superior da tubulafao 3, que e projetado da boca de ροςο na superficie do terreno T da jazida, apresenta um conduto 6 de saida de produySo, atraves do qual e mediante uma prensa de estopas 7 passa a primeira de uma sucessao de hastes 8 conectadas entre si mediante unioes 9, ate que a ultima haste 8，no trecho inferior da tubula?ao 4, esta acoplada a uma bomba BCP de fundo 10. Para ο acionamento da bomba 10,DETAILED DESCRIPTION In FIG. 1, it is shown that the illustrated example of a conventional pumping arrangement comprises a casing 1, or ροςο jacket, which has a ροςο 2 ， outlet mouth into which a pipe extends. 3, which leads fluid from the bottom of the floor to the surface, formed by a succession of sections 4 coupled together by joints 5. Between the casing 1 and the pipe 3 is defined longitudinally an annular space 13. The upper section 4 of the pipe 3, which is projected from the mouth of ροςο into the surface of the field T of the deposit, has a production outlet conduit 6, through which and through a tow press 7 passes the first of a succession of connected rods 8 by joints 9 until the last rod 8 ， at the bottom of the pipe 4 to the 4 is coupled to a bottom BCP pump 10. To drive the pump 10,
a haste superior 8, e consequentemente ο acionamento da bomba 10, a haste superior 8 esta acoplada a um motor eletrico 11 atraves de um mecanismo de transmissao 12 de roldanas e correias.the upper rod 8, and consequently the drive 10, the upper rod 8 is coupled to an electric motor 11 via a pulley and belt transmission mechanism 12.
Assim como ja foi exposto, a bomba 10 utiliza ο petroleo bombeado do fundo do ροςο como lubrificante entre as superficies que estao submetidas a fric^ao, vale dizer, entre ο Iado interno da tubula^ao 3 e ο Iado externo das hastes 8 que giram ao Iongo do seu interior. Na medida em que as jazidas envelhecem aumenta a porcentagem de agua na mescla "agua- petroleo", e a lubrifica9ao se torna deficiente provocando ο desgaste da tubula9ao por fricfao e corrosao da mesma, ate que e rota a capa limite de proteySo que se forma pelo fino deposito de hidrocarboneto presente na agua. Na FIG. 2 pode-se apreciar a forma em que a presente invenfao soluciona ο problemaAs already stated, the pump 10 uses oil pumped from the bottom of the ροςο as a lubricant between the frictioned surfaces, that is, between the inner side of the pipe 3 and the outer side of the rods 8 which turn to the Iong from within. As deposits age, the percentage of water in the "water-oil" mix increases, and lubrication becomes poor, causing pipe wear to friction and corrosion until the protective cap that forms is rotated. by the fine deposit of hydrocarbon present in water. In FIG. 2 one can appreciate the manner in which the present invention solves the problem
de desgaste por atrito das hastes de bombeio e a consequente corrosao das mesmas. Com efeito, a disposifao ora proposta para resolver tais problemas e conformada por um tubo giratorio 14 alojado em um tubo fixo 15, entre os quais fica um espafo de separafao que define um container de oleo lubrificante, tal como se pode ver na FIG. 3, onde e mostrado ο detalhe assinalado com a referencia A nesta FIG. 2. Para a injegSo do oleo lubrificante, ο extremo superior do tubo fixo 15 esta acoplado a um conduto 22 acessivel sobre a superficie do terreno T.friction wear of the pump rods and the consequent corrosion of them. Indeed, the arrangement now proposed to solve such problems is shaped by a swivel tube 14 housed in a fixed tube 15, among which is a separating space defining a lubricating oil container, as shown in FIG. 3, where is shown the detail marked with reference A in this FIG. 2. For the injection of lubricating oil, the upper end of the fixed pipe 15 is coupled to a conduit 22 accessible over the surface of the ground T.
Na realiza9ao preferida que se descreve e ilustra, a tubulafao tem uma secgao de 23/δ po legadas e a tubula^So 15 tem uma secfao de 27/8 polegadas, ο que resulta suficiente para obter a Iubrificafao necessaria que evita ο desgaste do tubo 14 por fric^ao com ο tubo 15. Ou seja，a presente invenfao constitui um encamisado da longitude necessaria para transformar ο ροςο em um gigantesco coxim, que funcionara preservado pela capa de oleo lubrificante que e injetada do exterior. Desta maneira, evita-se ο desgaste interno da tubula^ao devido a fric^ao das hastes e a corrosao acelerada pela tubula9ao, tal como ocorre nas disposi9oes convencionais. O tubo 15 esta conformado por uma sucessao de trechos acoplados mediante as unioes 5, como e mostrado na FIG. 4 correspondente ao detalhe B da FIG. 2. O tubo 14 esta conformado por uma sucessao de trechos acoplados mediante unioes 16, como e mostrado na FIG. 5 correspondente ao detalhe C assinalado na FIG. 2.In the preferred embodiment described and illustrated, the tubing has a cross section of 23 / δ wells and the tubing So 15 has a 27/8 inch cross section, which is sufficient to obtain the necessary lubrication which avoids pipe wear. 14 by friction with the tube 15. That is, the present invention is a casing of the length necessary to transform the ο ροςο into a gigantic cushion, which has been preserved by the lubricating oil cover that is injected from the outside. This avoids internal pipe wear due to rod friction and accelerated pipe corrosion as in conventional arrangements. The tube 15 is formed by a succession of coupled sections by the joints 5, as shown in FIG. 4 corresponding to detail B of FIG. 2. Tube 14 is formed by a succession of coupled sections by joining 16, as shown in FIG. 5 corresponding to detail C noted in FIG. 2.
O trecho superior do tubo 14 tem uma redi^So diametral 17 de onde e acoplado a umThe upper portion of the tube 14 has a diametrical shape 17 from where it is coupled to a
conduto 18, com junta articulada ou “swivel”，que conclui na saida de produfao 6. O trecho superior do tubo 14 apresenta um acabamento definido por um tubo 19 com orificios atraves dos quais passa ο fluido que e extraido mediante uma bomba 10, a qual ο mencionado trecho inferior do tubo 14 esta conectado mediante uma haste 20. Na FIG. 6 mostra-se ampliado ο mencionado tubo 19 assinalado na FIG. 2 com a referenda D, onde se ve claramente os orificios 19' do mesmo.conduit 18, with swiveling or swiveling joint ， which concludes at production outlet 6. The upper portion of tube 14 has a finish defined by a tube 19 with holes through which fluid is passed through a pump 10 to which lower portion of tube 14 is mentioned is connected by means of a rod 20. In FIG. 6 is enlarged ο to said tube 19 shown in FIG. 2 with referendum D, where the holes 19 'of the same are clearly seen.
O tubo 14 transmite a potencia de produfao e conduz 100% do fluido extraido do fundo do ροςο para a superficie pelo seu interior. A pelicula de oleo 21 entre ambos os tubos 14 e 15 (ver detalhe da figura) permite evitar a corrosao interna do tubo 15 e a corrosao externa do tubo interno 14. Alem disso, mediante uma pelicula de pintura na parede interior do tubo 14 que transporta ο fluido, contribui para evitar a corrosao interna provocada pelo fluido. A unica modifica^ao do tubo 14 consiste na conformafao da uniao roscada 16, adaptando-lhe a entre-rosca conectora (ver detalhe C na FIG. 5) que permite vincular ambos os tubos sem que ο diametro externo dos mesmos sofra variafoes. Em sintese, a disposi9ao objeto da presente invenfao consiste essencialmente naThe tube 14 transmits the production power and conducts 100% of the fluid extracted from the bottom of the ροςο to the surface inside. The oil film 21 between both tubes 14 and 15 (see detail of the figure) avoids the internal corrosion of the tube 15 and the external corrosion of the inner tube 14. In addition, by means of a paint film on the inner wall of the tube 14 which conveys fluid, helps to prevent internal corrosion caused by the fluid. The only modification of the tube 14 consists of the conformation of the threaded joint 16, adapting to it the connector thread (see detail C in FIG. 5) which allows to connect both tubes without changing the outside diameter of the same. In summary, the arrangement object of the present invention consists essentially of the
λ/o n/oλ / o n / o
utilizafao de dois tubos, 14 e 15, de fabrica9ao padrao API, de 2 polegadas e 2 polegadas, respectivamente, que em conjunto definem um "coxim hidraulico" da superficie ao fundo do ροςο, ο qual e possivel lubrificar enchendo ο espafo anular entre ambos os tubos com oleo Iubrificante e da viscosidade desejada, por exemplo, SAE 10. Este lubrificante evita a corrosao e atenua ο desgaste entre ambos os tubos 14 e 15. Alem disso, esta disposifao permite a condufao de todo ο fluido produzido pelo interior do tubo 14 sem pegas moveis no interior do mesmo, pelo que pode ser aplicada uma capa de pintura em seu interior para evitar a sua corrosao interna. Tambem se poderia dispor de um arranjo similar de tubos de diferentes diametros, por exemplo, 1,42 polegadas de diametro interno, 1,88 polegadas de diametro externo dentro de um tubo de 23/8 polegadas de diametro interno, ou em outros diametros, obtendo ο mesmo efeito de “coxim hidraulico" antes mencionado.using two 2 and 2 inch API standard tubes 14 and 15 respectively which together define a "hydraulic cushion" from the bottom surface of the ροςο which is possible to lubricate by filling the annular space between them. tubes with lubricating oil and desired viscosity, for example SAE 10. This lubricant prevents corrosion and attenuates wear between both tubes 14 and 15. In addition, this arrangement allows the conduction of all fluid produced within the tube. 14 without movable handles within it, whereby a paint coating may be applied inside to prevent its internal corrosion. A similar arrangement of pipes of different diameters could also be arranged, for example, 1.42 inch inner diameter, 1.88 inch outer diameter within a 23/8 inch inner diameter pipe or other diameters, obtaining the same "cushion" effect as mentioned above.
Desta maneira, obtem-se destacaveis vantagens perante as disposifoes conhecidas e utilizadas, tais como:In this way, remarkable advantages are obtained over known and used arrangements, such as:
-Ao aumentar a area de contato entre as duas superficies que rofam diminui a pressao de contato, que e a causa do desgaste, ja que a menor pressao de contato, gera menor desgaste (efeito “coxim hidraulico").Increasing the contact area between the two shriveling surfaces decreases the contact pressure, which is the cause of wear, as lower contact pressure generates less wear (“hydraulic cushion” effect).
-Permite diminuir ο numero de revolu9oes por minuto com que gira ο tubo que transmite a potencia, ja que este suporta maior torsao por ter maior diametro que as hastes das disposifoes convencionais, ο que Ihe confere maior moment。de inercia, permitindo uma diminui9ao da quantidade de ciclos de fricfao gerados pela frequencia de rotafao para uma mesma potencia aplicada, ja que ao transmitir maior torque pode girar mais devagar e e produzida menor quantidade de ciclos de desgastes.-Allows you to decrease the number of revolutions per minute with which the tube that transmits the power rotates, since it bears greater torsion because it has a larger diameter than the rods of the conventional arrangements, which gives it a greater moment of inertia, allowing a decrease of the The number of friction cycles generated by the rotation frequency for the same applied power, since transmitting higher torque can rotate slower and less wear cycles are produced.
-Permite interpor um lubrificante artificial selecionado pelo usuario entre ambas as superficies de fric^ao, ou seja, entre os tubos 14 e 15. - Permite prescindir de hastes no interior do tubo que conduz a produfao para a superficie-Allows you to interpose a user-selected artificial lubricant between both friction surfaces, ie between tubes 14 and 15. - Allows you to do without rods inside the tube that leads to production on the surface.
para poder aplicar uma pintura que evite a corrosao de sua parede interna.so you can apply a paint that will prevent corrosion of your inner wall.
Claims (5)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AR2010012791 | 2010-01-30 | ||
| AR20100102791 | 2010-07-30 | ||
| ARP100102791A AR077348A1 (en) | 2010-07-30 | 2010-07-30 | PROVISION FOR THE EXTRACTION OF HYDROCARBONS IN WELLS THAT USE PROGRESSIVE CAVITY PUMPS. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| BRPI1103813A2 true BRPI1103813A2 (en) | 2013-04-16 |
| BRPI1103813B1 BRPI1103813B1 (en) | 2020-10-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BRPI1103813-6A BRPI1103813B1 (en) | 2010-07-30 | 2011-07-28 | provision for hydrocarbon extraction in wells using progressive cavity pumps |
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| Country | Link |
|---|---|
| US (1) | US20120034120A1 (en) |
| AR (1) | AR077348A1 (en) |
| BR (1) | BRPI1103813B1 (en) |
| CA (1) | CA2747117C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CO6980133A1 (en) * | 2012-12-26 | 2014-06-27 | Serinpet Ltda Representaciones Y Servicios De Petróleos | Artificial lifting system with progressive cavity motor in the background for hydrocarbon extraction |
| DE202019104979U1 (en) | 2019-09-10 | 2019-11-19 | Netzsch Pumpen & Systeme Gmbh | System for pumping viscous or partially viscous media from a borehole to the earth's surface |
| CN115234197B (en) * | 2021-04-23 | 2023-07-25 | 中国石油天然气股份有限公司 | Rope hanger |
| CN113392483B (en) * | 2021-08-16 | 2021-10-19 | 中国石油集团川庆钻探工程有限公司 | Method and device for determining friction coefficient of shaft and method and device for determining friction resistance of shaft |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2456227A (en) * | 1945-09-25 | 1948-12-14 | Fmc Corp | Coupling stabilizer for moineau pumps |
| US5417281A (en) * | 1994-02-14 | 1995-05-23 | Steven M. Wood | Reverse Moineau motor and pump assembly for producing fluids from a well |
| US5725053A (en) * | 1996-08-12 | 1998-03-10 | Weber; James L. | Pump rotor placer |
| US6886636B2 (en) * | 1999-05-18 | 2005-05-03 | Down Hole Injection, Inc. | Downhole fluid disposal apparatus and methods |
| CA2286823C (en) * | 1999-10-18 | 2002-05-07 | Ed Matthews | Apparatus and method for pumping fluids for use with a downhole rotary pump |
| US6523615B2 (en) * | 2000-03-31 | 2003-02-25 | John Gandy Corporation | Electropolishing method for oil field tubular goods and drill pipe |
| FR2875533A1 (en) * | 2004-09-17 | 2006-03-24 | Inst Francais Du Petrole | METHOD AND SYSTEM FOR DRILLING WITH REVERSE CIRCULATION |
| US9168552B2 (en) * | 2011-08-25 | 2015-10-27 | Smith International, Inc. | Spray system for application of adhesive to a stator tube |
-
2010
- 2010-07-30 AR ARP100102791A patent/AR077348A1/en active IP Right Grant
-
2011
- 2011-03-17 US US13/050,111 patent/US20120034120A1/en not_active Abandoned
- 2011-07-22 CA CA2747117A patent/CA2747117C/en active Active
- 2011-07-28 BR BRPI1103813-6A patent/BRPI1103813B1/en active IP Right Grant
Also Published As
| Publication number | Publication date |
|---|---|
| AR077348A1 (en) | 2011-08-17 |
| BRPI1103813B1 (en) | 2020-10-13 |
| CA2747117C (en) | 2019-07-02 |
| CA2747117A1 (en) | 2012-01-30 |
| US20120034120A1 (en) | 2012-02-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| B03A | Publication of a patent application or of a certificate of addition of invention [chapter 3.1 patent gazette] | ||
| B06F | Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette] | ||
| B06A | Patent application procedure suspended [chapter 6.1 patent gazette] | ||
| B09A | Decision: intention to grant [chapter 9.1 patent gazette] | ||
| B16A | Patent or certificate of addition of invention granted [chapter 16.1 patent gazette] |
Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 28/07/2011, OBSERVADAS AS CONDICOES LEGAIS. |