WO2020053640A1 - Pump for stimulation and production tests and related methods thereof - Google Patents

Pump for stimulation and production tests and related methods thereof Download PDF

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Publication number
WO2020053640A1
WO2020053640A1 PCT/IB2018/060282 IB2018060282W WO2020053640A1 WO 2020053640 A1 WO2020053640 A1 WO 2020053640A1 IB 2018060282 W IB2018060282 W IB 2018060282W WO 2020053640 A1 WO2020053640 A1 WO 2020053640A1
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WO
WIPO (PCT)
Prior art keywords
well
swab
swabbing
pipe
piston
Prior art date
Application number
PCT/IB2018/060282
Other languages
Spanish (es)
French (fr)
Inventor
Ivan Joya Alvarez
Original Assignee
Ivan Joya Alvarez
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Publication date
Application filed by Ivan Joya Alvarez filed Critical Ivan Joya Alvarez
Publication of WO2020053640A1 publication Critical patent/WO2020053640A1/en

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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
    • 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
    • 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
    • E21B43/25—Methods for stimulating production
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B47/00—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B47/00—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps
    • F04B47/02—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps the driving mechanisms being situated at ground level
    • F04B47/04—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps the driving mechanisms being situated at ground level the driving means incorporating fluid means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
    • F04F5/02—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being liquid
    • F04F5/10—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being liquid displacing liquids, e.g. containing solids, or liquids and elastic fluids

Definitions

  • the present invention is related to the oil and hydrocarbon extraction industry, specifically refers to a pump for the stimulation of production in oil wells.
  • the formation pressure is not enough to overcome the hydrostatic column and raise the fluids to the surface, so the drainage tends to be very slow. This is due to different factors, for example, during the extraction process, the formation around the well is crushed and compact, which usually results in low permeability; likewise, the wells can become blocked with dirt from the contaminated fluid and the loads themselves. Dirt and rock damage must be removed to ensure an unobstructed flow of fluids.
  • Piston (or “swabbing” by its technical name in English), which consists of lifting a column of fluid (oil and water), is generally used to stimulate production in those wells, using a cup-type piston that is it is lowered to a certain depth and then raised to the surface inside the production pipeline by means of a steel cable that is wound or unwound in the winch drum of the service unit thanks to a motor.
  • this technique sometimes fails to create enough pressure differential to unlock the rock in the compacted area.
  • the piston with guaya is economic, it is highly risky and polluting.
  • the stimulation test and production pump is a tool with a robust construction, for use even in heavy work, in such a way that the risk of failure due to rupture of the pump parts when being rotated from the surface is reduced. It is multifunctional and versatile, since it can be configured according to the particular conditions of the well and allows access inside the pipeline in case a probe, a thin pipeline or a steel line needs to be lowered, useful activities if measurements are required from the environment, removal or change of internal valves of the tool, activities that can also be carried out without the tool having to be removed from the well. Likewise, it uses less operation time in safer conditions that allow the tool to be used even at night, thanks to the fact that the fluids that leave the well are directed by the surface production lines and their respective control devices.
  • the present invention relates to a swabbing device (100) or pump for stimulation and production tests (100), as well as the procedures for Well stimulation, either by swabbing, selective, or by pumping fluids.
  • the swab device (100) comprises a channeled reciprocating pumping device (2) (3) (4) (1 1) (13), a pipe anchor (7), at least one control device and flow permit (5) (6) and optionally a housing chamber (14).
  • the invention comprises a lower contact element (15), which can correspond to a plug and a fishing element, where the plug and the accommodation of the anchor (7) allow the formation of an isolated fraction of the well to selective stimulation of said region.
  • traveling valves (5) allows the circulation of fluids, acids or organic, in order to reduce the pressure and minimize the obstruction associated with bitums or calcifications at the bottom of the well.
  • the swabbing device (100) is especially useful in stimulating hydrocarbon wells as it allows the safe pumping of fluids; likewise, it is generally useful in hydrocarbon wells and can be used independently at the inclination level of said well; and, allows selective stimulation of a fraction of the well.
  • Figure 1 illustrates the swab device (100) with its interconnected components, the lower contact element (15) in its crown embodiment, the pipe anchor (7), and the optional housing chamber (14) are detailed.
  • Figure 2 illustrates an exploded view of the external components of the smoothing device (100) such as the stem cover (2) and the piston cover (4); along with some internal components such as a traveling valve (5).
  • Figure 3 illustrates an exploded view of the internal components of the smoothing device (100) such as the piston (13) and the torque rod (1 1), together with some additional elements comprised by the invention such as a device for permitting flow (8) (9) and possible couplings (10) (12).
  • Figure 4 details the exploded view for a possible embodiment of the packing box (3), which includes bronze parts (3A) (3C), a packing (3B) and a nut (3D).
  • the present invention refers to a massive underground swab device with reciprocating pumping option (100), or swab device (100), related to the technological sector of mining and extraction of raw material from the subsoil, especially extraction of hydrocarbons.
  • the swabbing device (100) comprises a channeled reciprocating pumping device (2) (3) (4) (1 1) (13), a pipe anchor (7), at least one flow control and permit device (5) (6) and optionally a housing chamber (14).
  • the swab device (100) is especially useful in hydrocarbon well stimulation tasks as it allows fluids and even solids to be safely pumped during and after acid treatments and organic treatments are carried out in the well, where said Treatments can be applied while the swabbing device (100) is disposed within the well; it is generally useful in hydrocarbon wells and can be used independently at the level of inclination of said well.
  • the swab device (100) is also called a stimulation and production test pump (100) given the main characteristics and functionality of the pump.
  • the swabbing device (100) comprises a lower contact element (15); in an embodiment of the invention said element is characterized by being a crown saw (15), or crown (15), illustrated in Figure 1; in another possible embodiment of the invention, said element (15) is characterized by being an adjustable plug for a fishing element and a pipe fishing element, eg a mouse trap element. Said lower contact element (15) interacts in its lower part with the medium, for example, isolating a portion of the well, excavating, or interacting with other tools, and in its upper section a section of pipe or the pipe anchor is connected. (7) included by the swabbing device (100).
  • the crown saw (1 5) can reach the bottom of the well, where it penetrates and breaks, when turning, the solids that prevent access to the bottom of the well and can serve as a guide.
  • the crown (15) accommodates a flap valve, also called a reed valve, in such a way that the fluid that passes through the tool tends to flow unhindered in an upward direction and due to the effect of the pump, and tends to being obstructed in a downward direction; wherein said flap valve is preferably a double flap valve when the swab device (100) is used in vertical wells, or a plurality of check valves when the swab device (100) is used in horizontal wells, so that fluid tends to accumulate in the chamber (14) of the swabbing device (100) comprised by the embodiment of the invention comprising said chamber (14), and where in general the fluid tends to move towards the surface.
  • a flap valve also called a reed valve
  • the location of the flap valve does not necessarily have to be in the lower contact element (15), or the crown (15), and can instead be located in one or more of the other elements comprised by the swabbing device (100 ); for example, in one embodiment of the invention, a flap valve is located in the chamber, and in another embodiment of the invention a flap valve is located in the coupling or arranged within a pipeline between the torque rod bushing. (1) and the working pipe to which said bushing (1) is normally connected. Also, in a preferred embodiment of the invention, the flap valves are located in a separate pipeline that is located between the lower contact element (15) and the piston (13) of the swab device (100). In such a way that said flap valve pipe is located linearly to exert the work of unidirectional blocking and can be coupled and uncoupled, preferably by means of threading, and conveniently during the swabbing, stimulation or well production process.
  • Each flap valve is arranged in the smoothing device (100) so that the flap tends to open in the direction the well surface is located, when a fluid flows upward, or when a negative or vacuum pressure Present in the upper area of the valve tends to open said flap upwards; In an optional embodiment of the invention, the flap tends to open downward.
  • the plug isolates the lower portion of the solid, while the pipe anchor (7) isolates the upper portion of the well , so that a totally isolated fraction of the well is generated, allowing selective stimulation of the well.
  • the pipe anchor (7) allows hermetic isolation, allowing material suction, and also anchors the swab device (100) to the well, preferably through the presence of a pressure-expanding material or that expands as a result of a rotation; the tension anchor (7) is connected at its lower end to the lower contact element (15) described above and at its upper end to the chamber (14) within which the pumped fluid can circulate or remain, as needed .
  • the aforementioned seating nipple (16) is located just above the lower contact element (15) comprised by the swabbing device (100).
  • the removable valve (5) acts as a check valve that prevents downward migration of fluids and allows upward flow.
  • the removable valve (5) is seated in the seating nipple (6), said valve (5) is located inside the swabbing device and can be freely moved inside the pump from the upper portion, the positioning of said valve Removable (5) is preferably carried out by fastening, on the surface, a guide from which the valve (5) hangs and which can be extended to the bottom and until said valve rests on the settlement nipple (6).
  • the removable valve (5) preferably comprises, according to the technical field, a settling chamber, a pellet, a spring and a cover.
  • the piston sleeve (13) is attached to the packing box (3), where one embodiment thereof is illustrated in Figure 4, which comprises packing parts (3B) and bronze parts (3A) (3C) , as well as a nut (3D) to secure the packing box (3D) to other pipes.
  • the packing parts (3A) (3C) are compressed by the nut (3D) and packing press, so that it is tight and closed against the piston (13).
  • the bronze parts (3A) (3C) prevent friction between the metal parts.
  • the rotary joint (1 1) is selected from a joint with a geometric configuration, preferably from a polyhedron selected from square prism, pentagonal prism, hexagonal prism, octagonal prism, among others.
  • the rotating union (1 1) rests on a female coupling (1), also called a stem bushing (1), with which it slides and transmits the movement to the entire assembly.
  • the rotary joint (1 1) is located inside the sleeve of the rotary joint (1 1) that corresponds to the space through which the rotary joint (1 1) moves.
  • the suction path depends on the length of the rotating union (1 1) used.
  • the reciprocating pump (2) (3) (4) (1 1) (13) is preferably attached, at the top, to a second drain arrangement (8) (9), which comprises a settlement nipple (9 ) partially covered by a shirt, where both the shirt as the main piece have holes distributed on their lateral faces, which facilitate the drainage of the crude oil and the pressure control.
  • a valve (8) is located which joins and moves with the rotary union (1 1), a movement that facilitates the drainage of the fluid.
  • the reciprocating pump (2) (3) (4) (1 1) (13) allows operation for direct circulation, direct circulation with rotation, reverse circulation, reciprocating circulation, as well as fishing work.
  • Reverse circulation consists of the circulation of fluids in a downward direction through the space located around the swabbing device (100) and inside the well, recovering these and other fluids by means of the upward circulation of these within the reciprocating pump (2) ( 3) (4) (1 1) (13) and other components of the swabbing device (100).
  • the reciprocating work consists of the generation of negative and positive pressures by the upward and downward displacement of the piston (13). In such a way that it is possible to repeat said reciprocating operation as many times as necessary, generally until a certain number of barrels are recovered of the hydrocarbon to be extracted, or until the conditions of the well and its content and pressure allow it.
  • the swabbing device (100) allows the adaptation of fishing pieces by means of the implementation of threads in the bodies of the elements, especially in the chamber (14) comprised by an embodiment of the swabbing device (100). , for the recovery of elements that have accidentally fallen into the well, that have been broken, jammed, or in general an object that you want to collect inside the well.
  • the most used fishing pieces is the mouse trap, however, any fishing piece can be adapted by using additional couplings or nipples whose implementation is within the spirit of the present invention.
  • the fishing piece allows the recovery of the plug in selective stimulation of wells.
  • the present invention allows well stimulation processes to be carried out by swabbing; selective stimulation; and, the pumping of fluids, eg acids and organic fluids. Therefore, the present invention also relates to the method for selected well stimulation of swab stimulation, selective stimulation, and fluid pumping stimulation.
  • the process for stimulating wells includes the steps of introducing the swabbing device (100) into the well, fixing the anchor to the walls of the wellbore, introducing the traveling valves (5) into the swabbing device (100) and the movement of the piston (13) up and down, inside the swab pump (100), up to the fluid outlet.
  • the swabbing device (100) is provided with a plug and a fishing element as a lower contact element (15); the swabbing device (100) is introduced into the well; the plug is released from the swab device (100) and isolates the lower portion of the well; the traveling valves (5) are introduced into the swab device (100); the anchor is fixed to the walls of the well, so that between the plug (15) and the anchor (7) the selected area is arranged to perform selective stimulation; and the piston (13) moves up and down, inside the swab pump (100), until the fluid outlet. Once the stimulation of the fraction of the well is finished, the stopper is captured with the fishing element and the swab pump (100) is removed from the well.
  • the swabbing device (100) is inserted into the well; the anchor is fixed to the walls of the well; fluids, selected from acids, organic fluids, among others, are circulated; it is waited for a period of time for the fluids to fulfill their function; the traveling valves (5) are incorporated in the swab device (100); and the piston (13) moves up and down, inside the swab pump (100), until the fluid outlet.
  • the introduced fluids are removed before starting the movement of the piston (13).

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  • Physics & Mathematics (AREA)
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Abstract

The present invention relates to a swabbing device (100) or pump (100) for stimulation and production tests and to the methods related thereto, and concerns the technical field of mining and the subsurface extraction of raw material, in particular hydrocarbon extraction. The swabbing device (100) comprises a channelled device for reciprocal pumping (2, 3, 4, 11, 13), a pipe anchor (7), at least one device (5, 6) for controlling and permitting flow and, optionally, an accommodation chamber (14). The swabbing device (100) is particularly useful in hydrocarbon-well stimulation tasks while allowing fluids to be pumped safely. It is also generally useful in hydrocarbon wells and can be used independently at the inclination level of the well. In addition, it allows a fraction from the well to be selectively stimulated.

Description

BOMBA PARA PRUEBAS DE ESTIMULACIÓN Y PRODUCCIÓN Y SUS  PUMP FOR STIMULATION AND PRODUCTION TESTS AND THEIR
MÉTODOS RELACIONADOS  RELATED METHODS
SECTOR TECNOLÓGICO TECHNOLOGICAL SECTOR
La presente invención se encuentra relacionada con la industria de la extracción de petróleo e hidrocarburos, específicamente se refiere a una bomba para la estimulación de producción en pozos petrolíferos. The present invention is related to the oil and hydrocarbon extraction industry, specifically refers to a pump for the stimulation of production in oil wells.
ANTECEDENTES DE LA INVENCIÓN BACKGROUND OF THE INVENTION
En algunos pozos la presión de la formación no es suficiente como para vencer la columna hidrostática y levantar los fluidos hacia la superficie, por lo que el drenaje tiende a ser muy lento. Esto se debe a diferentes factores, por ejemplo, durante el proceso de extracción, la formación que se encuentra alrededor del pozo es triturada y compacta, lo que normalmente se traduce en una baja permeabilidad; así mismo, los pozos pueden llegar a bloquearse con suciedad del fluido contaminado y de las cargas mismas. La suciedad y el daño a la roca deben ser removidos para garantizar un flujo de fluidos sin obstrucciones. In some wells the formation pressure is not enough to overcome the hydrostatic column and raise the fluids to the surface, so the drainage tends to be very slow. This is due to different factors, for example, during the extraction process, the formation around the well is crushed and compact, which usually results in low permeability; likewise, the wells can become blocked with dirt from the contaminated fluid and the loads themselves. Dirt and rock damage must be removed to ensure an unobstructed flow of fluids.
Para estimular la producción en aquellos pozos por lo general se utiliza el pistoneo (o“swabbing” por su nombre técnico en inglés), que consiste en el levantamiento de una columna de fluido (petróleo y agua), mediante un pistón tipo copa que se baja a una profundidad determinada y luego se levanta hasta la superficie dentro de la tubería de producción por medio de un cable de acero que se enrolla o desenrolla en el tambor del malacate de la unidad de servicio gracias a un motor. Sin embargo, esta técnica en algunas ocasiones falla en crear suficiente diferencial de presión como para desbloquear la roca en la zona compactada. Si bien el pistoneo con guaya es económico, es altamente riesgoso y contaminante. Ha proporcionado gran cantidad de accidentes, que incluyen pérdidas de vidas, por lo que en la práctica se toman algunas precauciones como el evitar la ejecución de esta técnica de noche o cuando hay condiciones de lluvia; otras precauciones suelen ser, evitar realizar el pistoneo cuando hay presencia de arena en los fluidos de producción, cuando el hidrocarburo a extraer es pesado, y cuando los pozos presentan una desviación de la vertical mayor a 27 grados. Piston (or “swabbing” by its technical name in English), which consists of lifting a column of fluid (oil and water), is generally used to stimulate production in those wells, using a cup-type piston that is it is lowered to a certain depth and then raised to the surface inside the production pipeline by means of a steel cable that is wound or unwound in the winch drum of the service unit thanks to a motor. However, this technique sometimes fails to create enough pressure differential to unlock the rock in the compacted area. Although the piston with guaya is economic, it is highly risky and polluting. It has provided a large number of accidents, including loss of life, so in practice some precautions are taken such as avoiding the execution of this technique at night or when there are conditions of rain; Other precautions are usually to avoid pistoning when there is presence of sand in the production fluids, when the hydrocarbon to be extracted is heavy, and when the wells have a deviation from the vertical greater than 27 degrees.
Por el momento no existe ninguna herramienta que pueda sustituir la técnica de pistoneo de manera más segura y económica mientras se conserva la posibilidad de trabajar durante condiciones que en el pistoneo con guaya serían riesgosos: e.g. condiciones de lluvia, pozos de extracción de crudo pesado, pozos no verticales. Por lo tanto, existe la necesidad de que existan herramientas que permitan la estimulación de producción de pozos petroleros sin los riesgos que tienen implícitos las técnicas existentes. At the moment there is no tool that can substitute the piston technique in a safer and more economical way while preserving the possibility of working during conditions that would be risky when pistoning with guaya: e.g. rain conditions, heavy oil extraction wells, non-vertical wells. Therefore, there is a need for tools that allow the stimulation of production from oil wells without the risks implicit in existing techniques.
La bomba para pruebas de estimulación y producción es una herramienta con una construcción robusta, para uso incluso en trabajos pesados, de tal manera que se disminuye el riesgo de falla por ruptura de las partes de la bomba al ser rotada desde la superficie. Es multifuncional y versátil, toda vez que se puede configurar según las condiciones particulares del pozo y permite el acceso por dentro de la tubería en caso de requerir bajar una sonda, una tubería delgada o una línea de acero, actividades útiles en caso de requerir mediciones del entorno, retiro o cambio de válvulas internas de la herramienta, actividades realizables también sin que la herramienta tenga que ser retirada del pozo. Así mismo, emplea menor tiempo de operación en condiciones más seguras que permiten utilizar la herramienta incluso de noche, gracias a que los fluidos que salen del pozo son direccionados por las líneas de producción en superficie y sus respectivos aparatos de control. The stimulation test and production pump is a tool with a robust construction, for use even in heavy work, in such a way that the risk of failure due to rupture of the pump parts when being rotated from the surface is reduced. It is multifunctional and versatile, since it can be configured according to the particular conditions of the well and allows access inside the pipeline in case a probe, a thin pipeline or a steel line needs to be lowered, useful activities if measurements are required from the environment, removal or change of internal valves of the tool, activities that can also be carried out without the tool having to be removed from the well. Likewise, it uses less operation time in safer conditions that allow the tool to be used even at night, thanks to the fact that the fluids that leave the well are directed by the surface production lines and their respective control devices.
BREVE DESCRIPCIÓN DE LA INVENCIÓN BRIEF DESCRIPTION OF THE INVENTION
La presente invención se refiere a un dispositivo de suabeo (100) o bomba para pruebas de estimulación y producción (100), así como los procedimientos para la estimulación de pozos, sea esta mediante suabeo, selectiva o con bombeo de fluidos. The present invention relates to a swabbing device (100) or pump for stimulation and production tests (100), as well as the procedures for Well stimulation, either by swabbing, selective, or by pumping fluids.
El dispositivo de suabeo (100) según la invención comprende un dispositivo canalizado de bombeo reciprocante (2) (3) (4) (1 1 ) (13), un ancla de tubería (7), por lo menos un dispositivo de control y permisión de flujo (5) (6) y opcionalmente una recámara de alojamiento (14). Así mismo, la invención comprende un elemento de contacto inferior (15), el cual puede corresponder a un tapón y un elemento de pesca, en donde el tapón y la acomodación del ancla (7) permiten la conformación de una fracción aislada del pozo para la estimulación selectiva de dicha región. The swab device (100) according to the invention comprises a channeled reciprocating pumping device (2) (3) (4) (1 1) (13), a pipe anchor (7), at least one control device and flow permit (5) (6) and optionally a housing chamber (14). Likewise, the invention comprises a lower contact element (15), which can correspond to a plug and a fishing element, where the plug and the accommodation of the anchor (7) allow the formation of an isolated fraction of the well to selective stimulation of said region.
La disposición de válvulas viajeras (5) permite la circulación de fluidos, ácidos u orgánicos, con el objeto de reducir la presión y minimizar la obstrucción asociada a bitúmenes o calcificaciones en el fondo del pozo. The arrangement of traveling valves (5) allows the circulation of fluids, acids or organic, in order to reduce the pressure and minimize the obstruction associated with bitums or calcifications at the bottom of the well.
El dispositivo de suabeo (100) es especialmente útil en tareas de estimulación de pozos de hidrocarburos en tanto que permite bombear de manera segura fluidos; así mismo, es útil en general en pozos de hidrocarburos y utilizable independientemente al nivel de inclinación de dicho pozo; y, permite hacer la estimulación selectiva de una fracción del pozo. The swabbing device (100) is especially useful in stimulating hydrocarbon wells as it allows the safe pumping of fluids; likewise, it is generally useful in hydrocarbon wells and can be used independently at the inclination level of said well; and, allows selective stimulation of a fraction of the well.
DESCRIPCIÓN DE LAS FIGURAS DESCRIPTION OF THE FIGURES
La Figura 1 ilustra el dispositivo de suabeo (100) con sus componentes interconectados, se detalla el elemento de contacto inferior (15) en su realización de corona, el ancla de tubería (7), y la recámara de alojamiento (14) opcional. Figure 1 illustrates the swab device (100) with its interconnected components, the lower contact element (15) in its crown embodiment, the pipe anchor (7), and the optional housing chamber (14) are detailed.
La Figura 2 ilustra un despiece de los componentes externos del dispositivo de suabeo (100) tales como el recubrimiento del vástago (2) y el recubrimiento del pistón (4); junto con algunos componentes internos tales como una válvula viajera (5). La Figura 3 ilustra un despiece de los componentes internos del dispositivo de suabeo (100) tales como el pistón (13) y el vástago de torque (1 1 ), junto con algunos elementos adicionales comprendidos por la invención tales como un dispositivo de permisión de flujo (8) (9) y posibles acoples (10) (12). Figure 2 illustrates an exploded view of the external components of the smoothing device (100) such as the stem cover (2) and the piston cover (4); along with some internal components such as a traveling valve (5). Figure 3 illustrates an exploded view of the internal components of the smoothing device (100) such as the piston (13) and the torque rod (1 1), together with some additional elements comprised by the invention such as a device for permitting flow (8) (9) and possible couplings (10) (12).
La Figura 4 detalla el despiece para una modalidad posible de la caja de empaques (3), que comprende partes de bronce (3A) (3C), una empaquetadura (3B) y una tuerca (3D). Figure 4 details the exploded view for a possible embodiment of the packing box (3), which includes bronze parts (3A) (3C), a packing (3B) and a nut (3D).
DESCRIPCIÓN DETALLADA DE LA INVENCIÓN DETAILED DESCRIPTION OF THE INVENTION
La presente invención se refiere a un dispositivo de suabeo subterráneo masivo con opción de bombeo reciprocante (100), o dispositivo de suabeo (100), relacionado con el sector tecnológico de la minería y la extracción de materia prima del subsuelo, en especial la extracción de hidrocarburos. El dispositivo de suabeo (100) comprende un dispositivo canalizado de bombeo reciprocante (2) (3) (4) (1 1 ) (13), un ancla de tubería (7), por lo menos un dispositivo de control y permisión de flujo (5) (6) y opcionalmente una recámara de alojamiento (14). El dispositivo de suabeo (100) es especialmente útil en tareas de estimulación de pozos de hidrocarburo en tanto que permite bombear de manera segura fluidos e incluso sólidos durante y luego de que se realizan tratamientos de ácido y tratamientos orgánicos en el pozo, en donde dichos tratamientos pueden ser aplicados mientras el dispositivo de suabeo (100) se encuentra dispuesto dentro del pozo; es útil en general en pozos de hidrocarburos y utilizable independientemente al nivel de inclinación de dicho pozo. El dispositivo de suabeo (100) también se denomina bomba para pruebas de estimulación y producción (100) dadas las características y funcionalidad principales de la misma. The present invention refers to a massive underground swab device with reciprocating pumping option (100), or swab device (100), related to the technological sector of mining and extraction of raw material from the subsoil, especially extraction of hydrocarbons. The swabbing device (100) comprises a channeled reciprocating pumping device (2) (3) (4) (1 1) (13), a pipe anchor (7), at least one flow control and permit device (5) (6) and optionally a housing chamber (14). The swab device (100) is especially useful in hydrocarbon well stimulation tasks as it allows fluids and even solids to be safely pumped during and after acid treatments and organic treatments are carried out in the well, where said Treatments can be applied while the swabbing device (100) is disposed within the well; it is generally useful in hydrocarbon wells and can be used independently at the level of inclination of said well. The swab device (100) is also called a stimulation and production test pump (100) given the main characteristics and functionality of the pump.
El dispositivo de suabeo (100) comprende un elemento de contacto inferior (15); en una modalidad de la invención dicho elemento se caracteriza por ser una sierra de corona (15), o corona (15), ilustrada en la Figura 1 ; en otra modalidad posible de la invención dicho elemento (15) se caracteriza por ser un tapón ajustable a un elemento de pesca y un elemento de pesca en tubería, e.g. un elemento de trampa de ratón. Dicho elemento de contacto inferior (15) interactúa en su parte baja con el medio, por ejemplo, aislando una porción del pozo, excavando, o interactuando con otras herramientas, y en su sección superior se conecta una sección de tubería o al ancla de tubería (7) comprendida por el dispositivo de suabeo (100). La sierra de corona (1 5) puede llegar al fondo del pozo, en donde penetra y rompe, al girar, los sólidos que impiden el acceso al fondo del pozo y puede servir de guía. Internamente la corona (15) permite alojar una válvula de aleta, también llamada válvula de lengüeta, de tal manera que el fluido que pasa a través de la herramienta tiende a fluir sin impedimento en dirección ascendente y por efecto de la bomba, y tiende a ser obstruido en dirección descendente; en donde dicha válvula de aleta es preferiblemente una válvula de doble aleta cuando se emplea el dispositivo de suabeo (100) en pozos verticales, o una pluralidad de válvulas cheque cuando se emplea el dispositivo de suabeo (100) en pozos horizontales, de manera que se tiende a acumular fluido en la recámara (14) del dispositivo de suabeo (100) comprendida por la modalidad de la invención que comprende dicha recámara (14), y en donde en general el fluido tiende a desplazarse hacia la superficie. The swabbing device (100) comprises a lower contact element (15); in an embodiment of the invention said element is characterized by being a crown saw (15), or crown (15), illustrated in Figure 1; in another possible embodiment of the invention, said element (15) is characterized by being an adjustable plug for a fishing element and a pipe fishing element, eg a mouse trap element. Said lower contact element (15) interacts in its lower part with the medium, for example, isolating a portion of the well, excavating, or interacting with other tools, and in its upper section a section of pipe or the pipe anchor is connected. (7) included by the swabbing device (100). The crown saw (1 5) can reach the bottom of the well, where it penetrates and breaks, when turning, the solids that prevent access to the bottom of the well and can serve as a guide. Internally, the crown (15) accommodates a flap valve, also called a reed valve, in such a way that the fluid that passes through the tool tends to flow unhindered in an upward direction and due to the effect of the pump, and tends to being obstructed in a downward direction; wherein said flap valve is preferably a double flap valve when the swab device (100) is used in vertical wells, or a plurality of check valves when the swab device (100) is used in horizontal wells, so that fluid tends to accumulate in the chamber (14) of the swabbing device (100) comprised by the embodiment of the invention comprising said chamber (14), and where in general the fluid tends to move towards the surface.
La ubicación de la válvula de aleta no tiene que ser necesariamente en el elemento de contacto inferior (15), o la corona (15), y puede en cambio ubicarse en uno o más de los demás elementos comprendidos por el dispositivo de suabeo (100); por ejemplo, en una modalidad de la invención, una válvula de aleta se encuentra en la recámara, y en otra modalidad de la invención una válvula de aleta se encuentra en el acople o en disposición dentro de una tubería entre el buje del vástago de torque (1 ) y la tubería de trabajo a la que normalmente se conecta dicho buje (1 ). Asimismo, en una modalidad preferida de la invención, las válvulas de aleta se ubican en una tubería independiente que se ubica entre el elemento de contacto inferior (15) y el pistón (13) del dispositivo de suabeo (100). De tal manera que dicha tubería de válvulas de aleta se ubica linealmente para ejercer la labor de bloqueo unidireccional y puede ser acoplada y desacoplada, preferiblemente por medio de rosca, y a conveniencia durante el proceso de suabeo, estimulación o producción del pozo. The location of the flap valve does not necessarily have to be in the lower contact element (15), or the crown (15), and can instead be located in one or more of the other elements comprised by the swabbing device (100 ); for example, in one embodiment of the invention, a flap valve is located in the chamber, and in another embodiment of the invention a flap valve is located in the coupling or arranged within a pipeline between the torque rod bushing. (1) and the working pipe to which said bushing (1) is normally connected. Also, in a preferred embodiment of the invention, the flap valves are located in a separate pipeline that is located between the lower contact element (15) and the piston (13) of the swab device (100). In such a way that said flap valve pipe is located linearly to exert the work of unidirectional blocking and can be coupled and uncoupled, preferably by means of threading, and conveniently during the swabbing, stimulation or well production process.
Cada válvula de aleta se dispone en el dispositivo de suabeo (100) de manera que la aleta tiende a abrir en la dirección en la que se encuentra la superficie del pozo, cuando un fluido fluye hacia arriba, o cuando una presión negativa o de vacío presente en el área superior de la válvula tiende a abrir dicha aleta hacia arriba; en una modalidad opcional de la invención, la aleta tiende a abrir hacia abajo. Each flap valve is arranged in the smoothing device (100) so that the flap tends to open in the direction the well surface is located, when a fluid flows upward, or when a negative or vacuum pressure Present in the upper area of the valve tends to open said flap upwards; In an optional embodiment of the invention, the flap tends to open downward.
Cuando el elemento inferior (15) se selecciona de un tapón ajustable a un elemento de pesca y un elemento de pesca en tubería, el tapón aísla la porción inferior del sólido, mientras que el ancla de tubería (7) aísla la porción superior del pozo, de manera que se genera una fracción del pozo totalmente aislada, lo que permite la estimulación selectiva del pozo. When the lower element (15) is selected from an adjustable plug to a fishing element and a pipe fishing element, the plug isolates the lower portion of the solid, while the pipe anchor (7) isolates the upper portion of the well , so that a totally isolated fraction of the well is generated, allowing selective stimulation of the well.
El ancla de tubería (7), ilustrada en la Figura 2, permite un aislamiento hermético, permitiendo la succión de material, y también ancla el dispositivo de suabeo (100) al pozo, preferiblemente mediante la presencia de un material que se expande a presión o que se expande por efecto de una rotación; el ancla de tensión (7) se conecta en su extremo inferior al elemento de contacto inferior (15) descrito con anterioridad y en su extremo superior a la recámara (14) dentro de la cual el fluido bombeado puede circular o permanecer, según la necesidad. Además, el ancla (7) permite el aislamiento de fluidos dentro del pozo a manera de taponamiento, gracias al material de sellado comprendido por dicha ancla (7), y en donde dicho taponamiento permite la inserción de fluidos en procesos tales como la estimulación selectiva o la estimulación por direccionamiento de fluidos ácidos o fluidos orgánicos, mientras el dispositivo de suabeo (100) se encuentra dispuesto y posiblemente realizando funciones adicionales de acuerdo con la presente invención. En una modalidad de la invención, el ancla (7) tiene forma de uñas. Así mismo, la recámara (14), junto con sus respectivos empaques o juntas tóricas, se une a y/o contiene en su extremo superior un niple de asentamiento (6), sobre el cual se asienta una válvula removible (5), o válvula viajera (5), y en donde la presencia de dicha válvula removible (5) contribuye a la regulación de presiones interna y externa en la herramienta y contribuye al control de flujo desde y hacia la herramienta. En una modalidad posible de la invención, el niple de asentamiento (16) recién mencionado se ubica justo encima del elemento de contacto inferior (15) comprendido por el dispositivo de suabeo (100). The pipe anchor (7), illustrated in Figure 2, allows hermetic isolation, allowing material suction, and also anchors the swab device (100) to the well, preferably through the presence of a pressure-expanding material or that expands as a result of a rotation; the tension anchor (7) is connected at its lower end to the lower contact element (15) described above and at its upper end to the chamber (14) within which the pumped fluid can circulate or remain, as needed . In addition, the anchor (7) allows the isolation of fluids within the well as a plugging, thanks to the sealing material comprised by said anchor (7), and where said plugging allows the insertion of fluids in processes such as selective stimulation or stimulation by targeting of acidic fluids or organic fluids, while the swabbing device (100) is arranged and possibly performing additional functions in accordance with the present invention. In an embodiment of the invention, the anchor (7) is shaped like nails. Likewise, the chamber (14), together with their respective gaskets or O-rings, is attached to and / or contains at its upper end a settlement nipple (6), on which a removable valve (5), or valve, sits. traveling (5), and where the presence of said removable valve (5) contributes to the regulation of internal and external pressures in the tool and contributes to the flow control to and from the tool. In a possible embodiment of the invention, the aforementioned seating nipple (16) is located just above the lower contact element (15) comprised by the swabbing device (100).
La válvula removible (5) (conocida también como standing valve en el campo técnico y por su nombre en inglés) actúa como una válvula de retención que evita la migración descendente de fluidos y permite el flujo ascendente. Si bien la válvula removible (5) se asienta en el niple de asentamiento (6), dicha válvula (5) se encuentra dentro del dispositivo de suabeo y se puede desplazar libremente dentro de la bomba desde la porción superior, el posicionamiento de dicha válvula removible (5) se realiza preferiblemente mediante la sujeción, en superficie, de una guaya desde la cual cuelga la válvula (5) y que puede ser extendida hasta el fondo y hasta que dicha válvula sea reposada en el niple de asentamiento (6). La válvula removible (5) comprende preferiblemente, de acuerdo con el campo técnico, una recámara de asentamiento, un balín, un resorte y una tapa. The removable valve (5) (also known as standing valve in the technical field and by its name in English) acts as a check valve that prevents downward migration of fluids and allows upward flow. Although the removable valve (5) is seated in the seating nipple (6), said valve (5) is located inside the swabbing device and can be freely moved inside the pump from the upper portion, the positioning of said valve Removable (5) is preferably carried out by fastening, on the surface, a guide from which the valve (5) hangs and which can be extended to the bottom and until said valve rests on the settlement nipple (6). The removable valve (5) preferably comprises, according to the technical field, a settling chamber, a pellet, a spring and a cover.
El niple de asentamiento (6), dentro y sobre el cual se puede acomodar la válvula removible (5), a su vez se une por su parte superior a la bomba reciprocante (2) (3) (4) (1 1 ) (13), la cual comprende una caja de empaques (3) que permite sellar las paredes interiores de la bomba (2) (3) (4) (1 1 ) (13) mientras se permite el movimiento del pistón (13) comprendido por dicha bomba (2) (3) (4) (1 1 ) (13); así mismo, la bomba reciprocante (2) (3) (4) (1 1 ) (13) comprende en su interior un pistón (13) que puede moverse arriba y abajo en el área inferior, pasando a través de la caja de empaques (3), y una junta rotatoria (1 1 ) en el área superior, en el exterior la bomba (2) (3) (4) (1 1 ) (13) comprende una camisa de pistón (4), y una camisa de junta rotatoria (2); algunas de las piezas fundamentales que conforman dicha bomba (2) (3) (4) (1 1 ) (13) se ilustran en la Figura 3. The settlement nipple (6), inside and on which the removable valve (5) can be accommodated, in turn is attached at the top to the reciprocating pump (2) (3) (4) (1 1) ( 13), which includes a packing box (3) that allows sealing the interior walls of the pump (2) (3) (4) (1 1) (13) while allowing the movement of the piston (13) comprised of said pump (2) (3) (4) (1 1) (13); likewise, the reciprocating pump (2) (3) (4) (1 1) (13) comprises inside it a piston (13) that can move up and down in the lower area, passing through the packing box (3), and a rotary joint (1 1) in the upper area, on the outside the pump (2) (3) (4) (1 1) (13) comprises a piston sleeve (4), and a rotary joint liner (2); Some of the fundamental parts that make up said pump (2) (3) (4) (1 1) (13) are illustrated in Figure 3.
El pistón (13) se encuentra unido o colgado de la junta rotatoria (1 1 ) y se desplaza junto con dicha pieza. El desplazamiento ascendente del pistón (13) genera la succión necesaria para los procesos de pruebas de estimulación y producción del pozo. El pistón (13) se encuentra dentro de la camisa de pistón (13), espacio dentro del cual se desplaza, como se ha mencionado anteriormente. The piston (13) is attached or hung from the rotary union (1 1) and moves together with said part. The upward displacement of the piston (13) generates the necessary suction for the stimulation testing and production processes of the well. The piston (13) is located inside the piston sleeve (13), space within which it moves, as mentioned above.
La camisa de pistón (13) se une a la caja de empaques (3), en donde una modalidad de misma se ilustra en la Figura 4, la cual comprende partes de empaquetadura (3B) y partes de bronce (3A) (3C), así como también una tuerca (3D) para asegurar la caja de empaques (3D) a otras tuberías. Las partes de empaquetadura (3A) (3C) son comprimidas por la tuerca (3D) y prensa empaque, de manera que queda apretado y cerrado contra el pistón (13). Por su parte, las partes de bronce (3A) (3C) evitan el rozamiento entre las piezas de metal. The piston sleeve (13) is attached to the packing box (3), where one embodiment thereof is illustrated in Figure 4, which comprises packing parts (3B) and bronze parts (3A) (3C) , as well as a nut (3D) to secure the packing box (3D) to other pipes. The packing parts (3A) (3C) are compressed by the nut (3D) and packing press, so that it is tight and closed against the piston (13). For its part, the bronze parts (3A) (3C) prevent friction between the metal parts.
La junta rotatoria (1 1 ) es seleccionada de una junta con configuración geométrica, preferiblemente de un poliedro seleccionado de prisma cuadrado, prisma pentagonal, prisma hexagonal, prisma octagonal, entre otros. La junta rotatoria (1 1 ) descansa sobre un acople hembra (1 ), también llamado buje de vástago (1 ), con el cual se desliza y transmite el movimiento a todo el conjunto. The rotary joint (1 1) is selected from a joint with a geometric configuration, preferably from a polyhedron selected from square prism, pentagonal prism, hexagonal prism, octagonal prism, among others. The rotating union (1 1) rests on a female coupling (1), also called a stem bushing (1), with which it slides and transmits the movement to the entire assembly.
La junta rotatoria (1 1 ) se encuentra dentro de la camisa de la junta rotatoria (1 1 ) que corresponde al espacio por medio del cual se desplaza la junta rotatoria (1 1 ). En principio, el recorrido de la succión depende del largo de la junta rotatoria (1 1 ) empleada. The rotary joint (1 1) is located inside the sleeve of the rotary joint (1 1) that corresponds to the space through which the rotary joint (1 1) moves. In principle, the suction path depends on the length of the rotating union (1 1) used.
La bomba reciprocante (2) (3) (4) (1 1 ) (13) se une preferiblemente, por su parte superior, a un segundo arreglo de drenaje (8) (9), el cual comprende un niple de asentamiento (9) parcialmente recubierto por una camisa, en donde tanto la camisa como la pieza principal tienen agujeros distribuidos en sus caras laterales, los cuales facilitan el drenado del crudo y el control de la presión. Dentro del arreglo de drenaje (8) (9) se ubica una válvula (8) la cual se une y se desplaza con la junta rotatoria (1 1 ), movimiento que facilita el drenaje del fluido. The reciprocating pump (2) (3) (4) (1 1) (13) is preferably attached, at the top, to a second drain arrangement (8) (9), which comprises a settlement nipple (9 ) partially covered by a shirt, where both the shirt as the main piece have holes distributed on their lateral faces, which facilitate the drainage of the crude oil and the pressure control. Inside the drainage arrangement (8) (9) a valve (8) is located which joins and moves with the rotary union (1 1), a movement that facilitates the drainage of the fluid.
Dados los componentes y características anteriores, la bomba reciprocante (2) (3) (4) (1 1 ) (13) permite funcionamiento para circulación directa, circulación directa con rotación, circulación en reversa, circulación reciprocante, así como trabajo de pesca. Given the above components and features, the reciprocating pump (2) (3) (4) (1 1) (13) allows operation for direct circulation, direct circulation with rotation, reverse circulation, reciprocating circulation, as well as fishing work.
La circulación en directa consiste en la circulación de fluidos en sentido descendente a través de la tubería para impactar el fondo del pozo, preferiblemente se hace mediante chorros a presión; para equilibrar presión mediante el bombeo a presión de fluidos hacia las cavidades o paredes del pozo, según el caso; o para bombear fluidos de características variadas, e.g. fluidos ácidos, con el objeto de diluir, solubilizar rocas o para ajustar el pH en el pozo según sea conveniente; fluidos orgánicos para dar mayor fluidez a bitúmenes en el fondo del pozo; entre otros. Por otra parte, la circulación en directa con rotación consiste en hacer circular fluidos en sentido descendente a través de la tubería rotando al mismo tiempo la herramienta para perforar espejos de arena consolidados o cementos aplicados para taponamiento de perforados, entre otros posibles sólidos o materia que se desee triturar. La circulación en reversa consiste en la circulación de fluidos en sentido descendente por el espacio ubicado alrededor del dispositivo de suabeo (100) y dentro del pozo, recuperando dichos y otros fluidos mediante la circulación ascendente de estos dentro de la bomba reciprocante (2) (3) (4) (1 1 ) (13) y otros componentes del dispositivo de suabeo (100). The direct circulation consists of the circulation of fluids in a downward direction through the pipe to impact the bottom of the well, preferably by means of pressure jets; to balance pressure by pumping fluids under pressure to the cavities or walls of the well, as appropriate; or to pump fluids of various characteristics, e.g. acidic fluids, in order to dilute, solubilize rocks, or to adjust the pH in the well as appropriate; organic fluids to give more fluidity to bitums at the bottom of the well; among others. On the other hand, direct circulation with rotation consists of circulating fluids downwards through the pipe while rotating the tool to drill consolidated sand mirrors or applied cements for drilling plugging, among other possible solids or material that you want to shred. Reverse circulation consists of the circulation of fluids in a downward direction through the space located around the swabbing device (100) and inside the well, recovering these and other fluids by means of the upward circulation of these within the reciprocating pump (2) ( 3) (4) (1 1) (13) and other components of the swabbing device (100).
El trabajo reciprocante consiste en la generación de presiones negativas y positivas por el desplazamiento ascendente y descendente del pistón (13). De tal manera que es posible repetir dicha operación reciprocante las veces que sea necesario, generalmente hasta recuperar una cantidad determinada de barriles del hidrocarburo a extraer, o hasta que las condiciones del pozo y su contenido y presión lo permitan. The reciprocating work consists of the generation of negative and positive pressures by the upward and downward displacement of the piston (13). In such a way that it is possible to repeat said reciprocating operation as many times as necessary, generally until a certain number of barrels are recovered of the hydrocarbon to be extracted, or until the conditions of the well and its content and pressure allow it.
Como se ha dicho, el dispositivo de suabeo (100) permite la adaptación de piezas de pesca mediante la implementación de roscas en los cuerpos de los elementos, en especial en la recámara (14) comprendida por una modalidad del dispositivo de suabeo (100), para la recuperación de elementos que hayan caído de manera accidental al pozo, que se hayan quebrado, atascado, o en general un objeto que se quiera recoger dentro del pozo. Dentro de las piezas de pesca más usadas se encuentra la trampa de ratón, no obstante, se puede adaptar cualquier pieza de pesca mediante la utilización de acoples o niples adicionales cuya implementación se encuentra dentro del espíritu de la presente invención. En especial, la pieza de pesca permite la recuperación del tapón en operaciones de estimulación selectiva de pozos. As it has been said, the swabbing device (100) allows the adaptation of fishing pieces by means of the implementation of threads in the bodies of the elements, especially in the chamber (14) comprised by an embodiment of the swabbing device (100). , for the recovery of elements that have accidentally fallen into the well, that have been broken, jammed, or in general an object that you want to collect inside the well. Among the most used fishing pieces is the mouse trap, however, any fishing piece can be adapted by using additional couplings or nipples whose implementation is within the spirit of the present invention. In particular, the fishing piece allows the recovery of the plug in selective stimulation of wells.
La utilización de elementos de acople para conectar las diferentes piezas descritas con anterioridad según los tamaños de diferentes realizaciones posibles de los mismos se encuentra dentro del espíritu de la presente invención; por ejemplo, un reductor de conexiones o un niple; en donde se puede aplicar una conexión mediante uno de dichos elementos de acople, por ejemplo, entre la bomba reciprocante (2) (3) (4) (1 1 ) (13) y uno de los niples de asentamiento (6) (9). The use of coupling elements to connect the different parts described above according to the sizes of different possible embodiments thereof is within the spirit of the present invention; for example, a connection reducer or a nipple; where a connection can be applied through one of said coupling elements, for example, between the reciprocating pump (2) (3) (4) (1 1) (13) and one of the settlement nipples (6) (9 ).
El acople de elementos adicionales que, entre cualquier conjunto de las piezas aquí descritas, como una pluralidad de recámaras de alojamiento además de la recámara que ya ha sido descrita, o un conjunto de válvulas adicionales a la que ya se ha descrito, también se encuentra del espíritu de la presente invención. Además, las figuras presentadas en esta descripción corresponden a propósitos meramente ilustrativos de la invención. The coupling of additional elements that, among any set of parts described here, such as a plurality of accommodation chambers in addition to the chamber that has already been described, or a set of valves additional to that which has already been described, is also found of the spirit of the present invention. Furthermore, the figures presented in this description correspond to merely illustrative purposes of the invention.
La presente invención permite llevar a cabo procesos de estimulación de pozos mediante suabeo; la estimulación selectiva; y, el bombeo de fluidos, e.g. ácidos y fluidos orgánicos. Por lo tanto, la presente invención también se refiere al procedimiento para la estimulación de pozos seleccionada de estimulación por suabeo, estimulación selectiva y estimulación por bombeo de fluidos. The present invention allows well stimulation processes to be carried out by swabbing; selective stimulation; and, the pumping of fluids, eg acids and organic fluids. Therefore, the present invention also relates to the method for selected well stimulation of swab stimulation, selective stimulation, and fluid pumping stimulation.
El proceso para la estimulación de pozos comprende las etapas de introducir el dispositivo de suabeo (100) en el pozo, la fijación del ancla a las paredes del pozo, la introducción de las válvulas viajeras (5) en el dispositivo de suabeo (100) y el movimiento del pistón (13) hacia arriba y hacia abajo, dentro de la bomba de suabeo (100), hasta la salida del fluido. The process for stimulating wells includes the steps of introducing the swabbing device (100) into the well, fixing the anchor to the walls of the wellbore, introducing the traveling valves (5) into the swabbing device (100) and the movement of the piston (13) up and down, inside the swab pump (100), up to the fluid outlet.
En una modalidad de la invención, el dispositivo de suabeo (100) se dota con un tapón y un elemento de pesca como elemento de contacto inferior (15); se introduce el dispositivo de suabeo (100) en el pozo; el tapón se suelta del dispositivo de suabeo (100) y aísla la porción inferior del pozo; se introducen las válvulas viajeras (5) en el dispositivo de suabeo (100); se fija el ancla a las paredes del pozo, de manera que entre el tapón (15) y el ancla (7) se dispone el área seleccionada para realizar la estimulación selectiva; y se mueve el pistón (13) hacia arriba y hacia abajo, dentro de la bomba de suabeo (100), hasta la salida del fluido. Una vez finalizada la estimulación de la fracción del pozo, se captura el tapón con el elemento de pesca y se retira la bomba de suabeo (100) del pozo. In one embodiment of the invention, the swabbing device (100) is provided with a plug and a fishing element as a lower contact element (15); the swabbing device (100) is introduced into the well; the plug is released from the swab device (100) and isolates the lower portion of the well; the traveling valves (5) are introduced into the swab device (100); the anchor is fixed to the walls of the well, so that between the plug (15) and the anchor (7) the selected area is arranged to perform selective stimulation; and the piston (13) moves up and down, inside the swab pump (100), until the fluid outlet. Once the stimulation of the fraction of the well is finished, the stopper is captured with the fishing element and the swab pump (100) is removed from the well.
En otra modalidad de la invención, se introduce el dispositivo de suabeo (100) en el pozo; se fija el ancla a las paredes del pozo; se hacen circular fluidos, seleccionados de ácidos, fluidos orgánicos, entre otros; se espera por un periodo de tiempo para que los fluidos cumplan su función; se incorporan las válvulas viajeras (5) en el dispositivo de suabeo (100); y se mueve el pistón (13) hacia arriba y hacia abajo, dentro de la bomba de suabeo (100), hasta la salida del fluido. En una modalidad de la invención, se retiran los fluidos introducidos antes de comenzar con el movimiento del pistón (13). Las figuras presentadas en esta descripción corresponden a propósitos meramente ilustrativos de la invención. Se da a entender que las figuras descritas no limitan el alcance de la invención divulgada. Una persona versada en el arte es capaz de concebir modificaciones posteriores a los principios determinados en el presente documento. In another embodiment of the invention, the swabbing device (100) is inserted into the well; the anchor is fixed to the walls of the well; fluids, selected from acids, organic fluids, among others, are circulated; it is waited for a period of time for the fluids to fulfill their function; the traveling valves (5) are incorporated in the swab device (100); and the piston (13) moves up and down, inside the swab pump (100), until the fluid outlet. In an embodiment of the invention, the introduced fluids are removed before starting the movement of the piston (13). The figures presented in this description correspond to merely illustrative purposes of the invention. It is implied that the figures described do not limit the scope of the disclosed invention. A person skilled in the art is able to conceive subsequent modifications to the principles determined in this document.
Aunque algunas modalidades de la invención se describen en la presente descripción, se apreciará que numerosas modificaciones y otras modalidades pueden concebirse por aquellos expertos en la materia con posterioridad a la divulgación de la presente invención. Por ejemplo, las características aquí descritas pueden aplicarse en otras modalidades. Por lo tanto, se entenderá que las reivindicaciones anexas pretenden cubrir todas las modificaciones y modalidades que están dentro del espíritu y alcance de la presente descripción. Although some embodiments of the invention are described in the present description, it will be appreciated that numerous modifications and other embodiments can be devised by those skilled in the art subsequent to the disclosure of the present invention. For example, the features described here can be applied in other ways. Therefore, it will be understood that the appended claims are intended to cover all modifications and modalities that are within the spirit and scope of the present description.

Claims

REIVINDICACIONES
1 . Un dispositivo de suabeo (100), también denominado bomba para pruebas de estimulación y producción de pozos (100), que comprende: one . A swabbing device (100), also called a stimulation test and well production pump (100), comprising:
una o más anclas de tubería (7);  one or more pipe anchors (7);
una bomba reciprocante;  a reciprocating pump;
por lo menos un dispositivo de control y permisión de flujo en tuberías (5) at least one device for controlling and permitting flow in pipes (5)
(6); (6);
por lo menos un elemento de acople de tuberías y/o elementos relacionados a tuberías, en donde cada uno de los elementos de acople permite unir dos piezas de la presente invención.  at least one pipe coupling element and / or pipe related elements, where each of the coupling elements allows to join two pieces of the present invention.
2. El dispositivo de suabeo (100) de la reivindicación 1 caracterizado porque comprende un elemento de contacto inferior (15) seleccionado de una corona de trituración, una corona dentada, un tapón, un elemento de pesca de tuberías, un elemento de pesca en general, una tubería simple, un acople de tubería y un final de tubería. 2. The swabbing device (100) of claim 1 characterized in that it comprises a lower contact element (15) selected from a crushing crown, a toothed crown, a plug, a pipe fishing element, a fishing element in Generally, a single pipe, a pipe coupling, and a pipe end.
3. El dispositivo de suabeo (100) de la reivindicación 1 en donde el ancla de tubería (7) se selecciona de un ancla hermética y un ancla en forma de uñas. The swab device (100) of claim 1 wherein the pipe anchor (7) is selected from a watertight anchor and a nail shaped anchor.
4. El dispositivo de suabeo (100) de la reivindicación 1 en donde la bomba reciprocante comprende una caja de empaques (3) que permite sellar las paredes interiores de la bomba reciprocante, un pistón (13) que genera la succión en el suabeo, una camisa de pistón (4), una junta rotatoria (1 1 ) que se desplaza con el pistón (13) y una camisa de junta rotatoria (2). The swab device (100) of claim 1 wherein the reciprocating pump comprises a packing box (3) that enables the interior walls of the reciprocating pump to be sealed, a piston (13) that generates suction in the swab, a piston sleeve (4), a rotating seal (1 1) that moves with the piston (13) and a rotating seal sleeve (2).
5. El dispositivo de suabeo (100) de la reivindicación 4 caracterizado porque la caja de empaques (3) comprende comprende partes de empaquetadura (3B) y partes de bronce (3A) (3C) y una tuerca (3D) para asegurar la caja de empaques (3D) a otras tuberías; en donde las partes de empaquetadura (3A) (3C) son comprimidas por la tuerca (3D) y prensa empaque, de manera que queda apretado y cerrado contra el pistón (13); y, en donde las partes de bronce (3A) (3C) evitan el rozamiento entre las piezas de metal. 5. The swabbing device (100) of claim 4 characterized in that the packing box (3) comprises comprising packing parts (3B) and bronze parts (3A) (3C) and a nut (3D) to secure the box from gaskets (3D) to other pipes; where the packing parts (3A) (3C) are compressed by the nut (3D) and packing press, so that it is tight and closed against the piston (13); and, where the bronze parts (3A) (3C) prevent friction between the metal parts.
6. El dispositivo de suabeo (100) de la reivindicación 4 caracterizado porque la junta rotatoria (1 1 ) se selecciona de una configuración poliédroica seleccionada de prisma cuadrado, prisma pentagonal, prisma hexagonal, prisma octagonal, entre otros. 6. The swabbing device (100) of claim 4 characterized in that the rotary joint (1 1) is selected from a selected polyhedral configuration of square prism, pentagonal prism, hexagonal prism, octagonal prism, among others.
7. El dispositivo de suabeo (100) de la reivindicación 1 caracterizado porque comprende un segundo arreglo de drenaje, el cual comprende un niple de asentamiento (9) parcialmente recubierto por una camisa y una válvula (8) la cual se une y se desplaza con la junta rotatoria (1 1 ) facilitando el drenaje del fluido. 7. The swab device (100) of claim 1 characterized in that it comprises a second drainage arrangement, which comprises a settlement nipple (9) partially covered by a sleeve and a valve (8) which is attached and displaced with the rotating union (1 1) facilitating the drainage of the fluid.
8. El dispositivo de suabeo (100) de la reivindicación 7 caracterizado porque la camisa del niple de asentamiento (9) comprende agujeros distribuidos en sus caras laterales que permiten el drenado del crudo y el control de la presión. 8. The swabbing device (100) of claim 7 characterized in that the sleeve of the settlement nipple (9) comprises holes distributed on its lateral faces that allow the drainage of the crude oil and the control of the pressure.
9. El dispositivo de suabeo (100) de la reivindicación 1 caracterizado porque el dispositivo de control y permisión de flujo en tuberías (5) (6) comprende válvulas viajeras (5) que regulan las presiones interna y externa en el dispositivo de suabeo (100) y permiten el control de flujo desde y hacia el dispositivo de suabeo (100) y niples de asentamiento (6) sobre el cual se asienta una válvula viajera (5). 9. The swab device (100) of claim 1 characterized in that the pipe flow control and permit device (5) (6) comprises traveling valves (5) that regulate the internal and external pressures in the swab device ( 100) and allow control of flow to and from the swab device (100) and settlement nipples (6) on which a traveling valve (5) sits.
10. El dispositivo de suabeo (100) de la reivindicación 1 caracterizado porque comprende dos dispositivos de control y permisión de flujo en tuberías (5) (6). 10. The swabbing device (100) of claim 1 characterized in that it comprises two flow control and flow permitting devices in pipes (5) (6).
1 1 . El dispositivo de suabeo (100) de la reivindicación 1 caracterizado porque comprende una válvula de aleta que permite el flujo en dirección ascendente y obstruye el flujo en dirección descendente. eleven . The swabbing device (100) of claim 1 characterized in that it comprises a flap valve that allows flow in the upward direction and obstructs flow in the downward direction.
12. El dispositivo de suabeo (100) de la reivindicación 1 caracterizado porque comprende una recámara (14) que comprende en su parte superior un dispositivo de control y permisión de flujo en tuberías (5) (6), en donde la recámara está unida al ancla (7), por debajo de esta. 12. The swabbing device (100) of claim 1 characterized in that it comprises a chamber (14) comprising in its upper part a device for controlling and permitting flow in pipes (5) (6), wherein the chamber is joined to the anchor (7), below it.
13. Un procedimiento para la estimulación de pozos que comprende las etapas de introducir el dispositivo de suabeo (100) en el pozo, fijar el ancla (7) a las paredes del pozo, introducir de las válvulas viajeras (5) en el dispositivo de suabeo (100) y el movimiento del pistón (13) dentro de la bomba de suabeo (100) hasta la salida del fluido. 13. A procedure for the stimulation of wells comprising the steps of introducing the swabbing device (100) into the well, fixing the anchor (7) to the walls of the well, introducing the traveling valves (5) into the device swab (100) and the movement of the piston (13) inside the swab pump (100) until the fluid outlet.
14. Un procedimiento para la estimulación de pozos que comprende las etapas de dotar el dispositivo de suabeo (100) con un tapón y un elemento de pesca como elemento de contacto inferior (15); introducir el dispositivo de suabeo (100) en el pozo; soltar el tapón; fijar el ancla (7) a las paredes del pozo; introducir de las válvulas viajeras (5) en el dispositivo de suabeo (100); y mover el pistón (13) dentro de la bomba de suabeo (100) hasta la salida del fluido. 14. A method for stimulating wells comprising the steps of providing the swabbing device (100) with a plug and a fishing element as the lower contact element (15); insert the swabbing device (100) into the well; release the cap; fix the anchor (7) to the walls of the well; inserting the traveling valves (5) into the swabbing device (100); and moving the piston (13) inside the swab pump (100) to the fluid outlet.
15. El procedimiento para la estimulación de pozos de la reivindicación 14 que comprende las etapas de recuperar el tapón con el elemento de pesca y retirar el dispositivo de suabeo (100) del pozo. The well stimulation procedure of claim 14 comprising the steps of retrieving the plug with the fishing element and removing the swab device (100) from the well.
16. El procedimiento para la estimulación de pozos de las reivindicaciones 13 a 15 que comprende la circulación de fluidos seleccionados de ácidos y fluidos orgánicos. 16. The well stimulation method of claims 13-15 comprising the circulation of selected acid fluids and organic fluids.
PCT/IB2018/060282 2018-09-11 2018-12-18 Pump for stimulation and production tests and related methods thereof WO2020053640A1 (en)

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Citations (7)

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US20140076534A1 (en) * 2006-05-24 2014-03-20 Mako Rentals,Inc. Seal configuration for top drive swivel apparatus and method

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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US4239083A (en) * 1979-05-07 1980-12-16 Baker International Corporation Method and apparatus for rotating tubing conduits
US5148867A (en) * 1991-06-17 1992-09-22 Concoyle Oil Fields Tools, Inc. Stop for an oil well swabbing device
US5823265A (en) * 1994-07-12 1998-10-20 Halliburton Energy Services, Inc. Well completion system with well control valve
US6497561B2 (en) * 2000-02-01 2002-12-24 Skillman Pump Company, Llp Downstroke sucker rod pump and method of use
US20050126791A1 (en) * 2003-12-15 2005-06-16 Phil Barbee Reciprocating slickline pump
US20140076534A1 (en) * 2006-05-24 2014-03-20 Mako Rentals,Inc. Seal configuration for top drive swivel apparatus and method

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