EP3036438A2 - Système d'extraction de milieux liquides à partir d'un forage ainsi que procédé d'installation d'un ensemble de pompage réalisé sous la forme d'une pompe à vis excentrée dans un forage - Google Patents

Système d'extraction de milieux liquides à partir d'un forage ainsi que procédé d'installation d'un ensemble de pompage réalisé sous la forme d'une pompe à vis excentrée dans un forage

Info

Publication number
EP3036438A2
EP3036438A2 EP14789135.2A EP14789135A EP3036438A2 EP 3036438 A2 EP3036438 A2 EP 3036438A2 EP 14789135 A EP14789135 A EP 14789135A EP 3036438 A2 EP3036438 A2 EP 3036438A2
Authority
EP
European Patent Office
Prior art keywords
adapter unit
riser
unit
stator
pump
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP14789135.2A
Other languages
German (de)
English (en)
Inventor
Lorenz Lessmann
Osnildo Borchardt
Ivanilson Raduenz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Netzsch Pumpen and Systeme GmbH
Original Assignee
Netzsch Pumpen and Systeme GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Netzsch Pumpen and Systeme GmbH filed Critical Netzsch Pumpen and Systeme GmbH
Publication of EP3036438A2 publication Critical patent/EP3036438A2/fr
Withdrawn legal-status Critical Current

Links

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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02—Couplings; joints
    • E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
    • E21B17/06—Releasing-joints, e.g. safety joints
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F04C2/107—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth
    • 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
    • E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
    • E21B23/01—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for anchoring the tools or the like
    • 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
    • E21B17/01—Risers
    • 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
    • E21B43/01—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells specially adapted for obtaining from underwater installations
    • 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
    • E21B43/12—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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2230/00—Manufacture
    • F04C2230/60—Assembly methods
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/20—Rotors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2270/00—Control; Monitoring or safety arrangements
    • F04C2270/70—Safety, emergency conditions or requirements
    • F04C2270/72—Safety, emergency conditions or requirements preventing reverse rotation

Definitions

  • the present invention relates to a system having an adapter unit for delivering liquid media from a borehole. Furthermore, the invention relates to a method for installing a pump unit designed as an eccentric screw pump in a borehole.
  • Liquids can be connected to reciprocating pumps, when replacing the pump by another type of pump, a removal of the entire pump unit together with all components. Such an exchange is always time consuming and associated with high costs.
  • the object of the invention is therefore to provide a system and a method with which the replacement of a pump connected to a wellbore can be done by an eccentric screw pump without having to change the original piping of the riser.
  • the system and method should be simple and implementable without great expense.
  • the invention relates to a system for conveying liquid media from a
  • the system includes a riser which extends at least approximately in the longitudinal direction of the wellbore.
  • the riser is here at least partially added in the borehole.
  • the riser is already installed in the borehole during installation of the pump unit described in more detail below.
  • the riser consists of a plurality of pipe sections, which are interconnected via connecting sleeves without interruption.
  • Pumping unit comprises a stator with a rotor and a drive train connected to the rotor for eccentric movement of the rotor.
  • the pump unit is thus designed as an eccentric screw pump, by means of which liquid medium can be conveyed by resulting from a rotational movement of the rotor delivery chambers in the direction of the well opening.
  • the system can have a safeguard against rotation.
  • the protection against rotation can be firmly connected to the riser, or clamped in the riser.
  • the security against rotation is preferably arranged vertically below the pump unit.
  • an adapter unit which communicates with the stator and holds the stator substantially immovably in the riser via a clamping system on the riser.
  • the adapter unit or parts of the adapter unit has at least one subregion with an elevated one
  • at least one, preferably a plurality of spring elements is arranged in the partial region with the increased cross-sectional diameter.
  • the adapter unit is over the portion with the increased cross-sectional diameter, in particular via the spring elements, clamping with the riser and / or with a so-called, integrated in the riser receiving sleeve brought into abutment.
  • Receiving sleeve is introduced, for example in front of the adapter unit in the riser and integrated in this.
  • the spring elements are designed as elastic and / or resilient tongues, which are in clamping connection with the riser pipe.
  • the adapter unit may comprise a plurality of such elastic tongues which are equidistant from the adapter unit or from a part of the
  • the elastic tongues can be integral with the elastic tongues
  • Adapter unit or with the respective part of the adapter unit by injection molding or other suitable molding process can be produced.
  • the tongues can be oriented at least approximately parallel to each other.
  • the adapter unit preferably provides a centering, seal and a guide for the drive train of the new pump unit.
  • the adapter unit is designed as a hollow body, wherein the drive train extends completely through the adapter unit.
  • the adapter unit or parts of the adapter unit are formed as a hollow cylinder.
  • the adapter unit is preferably formed of a metal, a plastic with an integrated sealing element or other suitable material.
  • the integrated sealing element is advantageously made of an elastomer. It makes sense for the adapter unit to lie at least in regions to its clamping and to the pump chamber seal on the inside of a standardized
  • the adapter unit is arranged vertically below the pump unit. In Further embodiments are also conceivable that the adapter unit is arranged vertically above the pumping unit. The arrangement of the adapter unit above or below the newly introduced pump unit is particularly dependent on the diameter of the existing wellbore and accordingly on the diameter of the casing of the riser.
  • the adapter unit or parts of the adapter unit is coupled to a downwardly or upwardly facing free end of the stator or placed on the free end of the stator.
  • Cross-sectional diameter and the spring elements is clamped during installation with the riser and / or brought into contact with a receiving sleeve of the riser.
  • the spring elements are pressed when passing through the adapter unit by a bottleneck in the riser pipe inwards. After passing through the constriction, the spring elements spring back and jam the adapter unit securely in the riser.
  • the adapter unit is coupled to a downwardly facing or to an upwardly facing free end of the stator.
  • the adapter unit or parts of the adapter unit at least partially enter the stator or sit on the stator.
  • the respective free end of the stator, on which the adapter unit is seated tapers at least in sections in the direction away from the stator.
  • the free end of the stator, on which the adapter unit is seated may be conical and / or threaded.
  • the adapter unit comprises a correspondingly formed receiving area in which the free end of the stator can be accommodated positively and / or non-positively and / or in which the free end of the stator can be securely fastened.
  • the receiving area is designed as an internal thread corresponding to the external thread of the stator.
  • the adapter unit or parts of the adapter unit can be spread over the stator of the eccentric screw pump.
  • the outer lateral surface of the adapter unit is at least partially and preferably formed all around by an elastomer.
  • the elastomer or the at least partially formed by an elastomer outer jacket surface serves to increase the static friction between the riser and the adapter unit.
  • Elastomer-formed outer circumferential surface of the adapter unit and their investment in the riser a seal is formed.
  • the outer circumferential surface which is formed at least partially and preferably all around by an elastomer, has a groove-shaped profiling.
  • the adapter unit is formed in two parts and is composed of a first, female part and a second, so-called male part.
  • the second part of the adapter unit can essentially be seated in a form-fitting manner on the stator.
  • the second part preferably comprises a receiving area for the free end of the stator at the free end opposite the tapered cross section.
  • the receiving area is formed corresponding to the shape of the free end of the stator.
  • the cross section of the second part tapers in the direction of the first part facing.
  • the first part preferably comprises the subregion of the adapter unit with the increased cross-sectional diameter and the spring elements, in particular the first part can have a plurality of elastic tongues pointing in the direction of the second part, which together increase the height at least in some areas
  • the first, female part of the adapter unit is firmly clamped in the riser, in particular the first part in the region of a receiving sleeve or adjacent to a receiving sleeve by the spring elements or tongues clamped with the riser and / or the receiving sleeve brought into abutment.
  • the second part is seated at the free end of the pump unit, which is connected to the drill string, positive and / or non-positive.
  • the second part of the adapter unit is attached to the free end of the pump unit.
  • Adapter unit are clamped together during assembly.
  • the drive shaft can extend through the first part and the second part.
  • the first part of the adapter unit for clamping and the pump chamber seal on a standardized, forming a constriction receiving sleeve of the riser surface.
  • Adapter unit called tongues or latches.
  • Cross-section is inserted into a limited by the tongues or pawls interior of the first part of the adapter unit and firmly received in a press fit.
  • the second part can be anchored rotationally fixed to the first part by a rotation.
  • the outer circumferential surfaces of the tongues or pawls of the first part and the integrated sealing element are pressed against the inner surface of the standardized receiving sleeve of the riser and the stator held substantially immovable in the riser.
  • Adapter unit, the first part and the second part of the adapter unit each have a breakthrough, wherein the breakthrough of the first part and the breakthrough of the second
  • the two-piece adapter unit also provides centering, sealing and axial guidance for the powertrain of the new pump unit.
  • a pump unit to be installed in a borehole which was not equipped with a reciprocating pump, it can be provided that in a first step, the standardized receiving sleeve is introduced into the respective riser. In a further and subsequent step, the pump unit can then be introduced into the respective riser.
  • the installation of an eccentric screw pump in a well equipped with a reciprocating pump hole is as follows: First, the previously installed in the borehole piston pump is removed from the well, then the components for a new pump unit can be installed.
  • the installation of the first part of an adapter unit on or in the existing riser pipe is initially carried out.
  • the first part of the adapter unit is preferably installed in the region of a receiving sleeve connecting the pipe sections of the casing in the riser.
  • the second, part is arranged and / or attached to the pump insert of the newly used pump unit, in particular the eccentric screw pump. Subsequently, the pumping unit together with the second part and the drill string of the
  • the second part of the adapter unit is anchored in the first part of the adapter unit in the riser.
  • the second part of the adapter unit is rotationally anchored by rotation of the drive linkage in the first part of the adapter unit.
  • the weight of the drive train acts from above on the second part of the adapter unit.
  • the upwardly facing part of the first part is expanded and thus firmly anchored in the borehole.
  • the tongues of the first part of the adapter unit are spread open and anchored by clamping in the borehole or in the riser pipe.
  • the tapered region of the second part of the adapter unit engages in an inner region of the first part of the adapter unit formed by the tongues.
  • the tongues Passing through the two-part formed adapter unit or the first part of the adapter unit by a bottleneck formed by a receiving sleeve of the riser, the tongues increase the cross-section of the first part at least partially inward and then snap after the constriction has been passed, securing. As a result, a locking, clamping connection is made with the riser.
  • the invention also relates to a method for installing a
  • Eccentric screw pump unit formed in a wellbore.
  • a pumping device operatively connected to the wellbore is uninstalled and removed from the wellbore leaving a riser pipe in the wellbore.
  • an adapter unit or parts of an adapter unit is mounted or attached to the free end of a pump unit designed as an eccentric screw pump.
  • the pump unit is introduced by means of a drill string in the riser and anchored by means of the adapter unit in the riser.
  • the pump unit is brought by the adapter unit by clamping with the riser into abutment, so that the pump unit is held by the adapter unit substantially immovably in the riser.
  • Adapter unit can be arranged both at an upper free end and at a lower free end of the pump unit and / or fixed. In preferred embodiments, it is also provided that the
  • Cross-sectional diameter of the adapter unit is at least partially increased after insertion into the riser for the purpose of its clamping system. For example, the enlargement of the cross-sectional diameter by spreading of
  • a two-piece adapter unit as has already been described in detail, is used for the installation of the pump unit designed as an eccentric screw pump.
  • the individual assembly steps have also been described in detail.
  • Figure 1 is a schematic perspective view of an adapter unit as may be used for various embodiments of the present invention
  • Figure 2 shows a schematic side view of the adapter unit of Figure 1;
  • FIG. 3 shows a longitudinal section through the adapter unit from FIGS. 1 and 2;
  • Figures 4 are schematic views of a pumping unit with adapter unit as may be used for various embodiments of the present invention;
  • FIG. 5 show schematic views of another pump unit
  • Adapter unit as may be used for various embodiments of the present invention.
  • FIG. 6 show schematic views of another pump unit with
  • FIG. 7 shows a schematic view of an embodiment of a system according to the invention for conveying liquid media
  • FIG. 8 shows a schematic view of a further embodiment of a system according to the invention for conveying liquid media.
  • FIG. 1 shows a schematic perspective view of an adapter unit 5 as may be used for various embodiments of the present invention.
  • the adapter unit 5 is formed as a hollow body. It consists of a first part 7 and a second part 9, which each have an opening 13 or 13 ', which extend in alignment with each other in the longitudinal direction of the adapter unit 5 completely through the adapter unit 5.
  • a drive train 16 is received in a pump unit 3 described in more detail below and axially guided (see Figures 4 to 8).
  • the adapter unit 5 consists of a first, so-called female part 7 and a second, so-called male part 9.
  • the first part 7 has in one of the second part 9 facing end portion 8 spring elements 15 in the form of elastic and / or resilient tongues 15 *.
  • the first part 7 has, at least in regions, an enlarged cross-sectional diameter D15.
  • the second part 9 has an end portion 10 facing the first part 7.
  • the second part 9 tapers in the end region 10 in the direction of the first part 7 and has a reduced cross-sectional diameter D10 compared to the tongues 15 * of the first part.
  • the recorded in the first part 7 area 25 (see Figure 3) of the second part 9 is formed in particular peg-shaped.
  • the second part 9 with the reduced diameter D10 of the end region 10 engages in the end region 8 of the first part 7.
  • the tongues 15 * are in a relaxed state and oriented parallel to each other.
  • the first part 7 has, in regions, an outer circumferential surface 11, which is formed all around by an elastomer.
  • the outer circumferential surface 1 1 comprises a groove-shaped profiling and is provided for increasing the static friction between the adapter unit 5 and the respective riser pipe 19
  • Figure 2 illustrates in the schematic side view again the parallel orientation of the tongues 15 * of the pushed onto the second part 9 first part 7 of the adapter unit 5 in the unloaded state. Furthermore, the groove-shaped profiling of the formed by an elastomer outer jacket surface 1 1 can be seen.
  • FIG. 3 shows a longitudinal section through the adapter unit 5 from FIGS. 1 and 2.
  • FIG. 3 clearly shows that the second part 9 is formed on its inner circumferential surface in a cone shape at least in some areas.
  • the second part is fastened to a stator 17 (see FIGS. 4 to 8) of a pump unit 3, in particular
  • the cone-shaped second part 9 is adaptively adapted to the shape of the respective stator 17.
  • the opening 13 of the first part 7 and the opening 13' of the second part 9 are aligned in the longitudinal direction of the adapter unit 5 and in this case form a channel through which the liquid medium at
  • Both the first part 7 and the second part 9 have bores which are aligned with each other in the position of the first part 7 and second part 9 shown in FIG.
  • the first and the second part 7, 9 are positively connected to each other and additionally secured with guided in the holes pins 21.
  • the receptacle 23 of the second part 9 is preferably formed as a receiving thread 24 corresponding to the shape of the free end of a stator 17 (see Figures 4 to 8), so that the second part 9 can be screwed onto the stator 17 substantially positive fit.
  • FIG. 4 shows schematic views of a pump unit 3 with adapter unit 5, as can be used for various embodiments of the present invention.
  • FIG. 4A a longitudinal section is shown.
  • FIG. 4B shows a
  • Reference numeral 27 refers to an anti-rotation, with which the
  • the anti-rotation device 27 is arranged vertically below the pump unit 3 in the borehole and vertically below the adapter unit 5.
  • the pump unit 3 is designed as an eccentric screw pump and has a rotor 18 which is rotated by the drive shaft 16 and is guided in a stator 17. Due to the eccentric and rotating movement of the rotor 18 in the stator 17 delivery chambers are formed and liquid medium with the aid of
  • the liquid medium also passes through the adapter unit 5 which, as already illustrated in the exemplary embodiment of FIGS. 1 to 3, is formed from a first part 7 and a second part 9.
  • the second part 9 is screwed onto the stator 17 and engages in the first part 7 a.
  • the first part 7 is brought into connection with a riser 19, not shown in FIGS.
  • FIG. 5 shows schematic views of a further pumping unit 3 with adapter unit 5, as may be used for various embodiments of the present invention.
  • the adapter unit 5 is coupled in the embodiment of Figure 5 with their tongues 15 * (see Figures 1 to 3) to the anti-rotation device 27.
  • the adapter unit 5 is connected to the stator 17 in connection.
  • the adapter unit 5 can thus be installed vertically above the pump unit 3 in the respective borehole (cf. FIGS. 4) or, as shown in the exemplary embodiment of FIG. 5, vertically below the pump unit 3 in the respective borehole. It is clear to the person skilled in the art that in various embodiments it can be provided that an adapter unit 5 is present both below the pumping unit 3 and above the pumping unit 3. As shown in Figures 1 to 3, the adapter unit 5 consists in both cases of a first part with resilient tongues 15 * and a second part 9 with recording or mounting portion 23 for the stator 17. The second part 9 is seated on the stator 17th designed as an eccentric screw pump unit 3 and engages in the first part 7 a.
  • Formed eccentric screw pump and has a stator 17 and an eccentrically rotating rotor 18.
  • Figure 5C illustrates in detail an embodiment of a drive shaft 16, as it can be used for a pump unit 3.
  • FIG. 6 shows schematic views of a further pumping unit 3 with adapter unit 5, as can be used for various embodiments of the present invention. As in the embodiment of Figures 4 is the
  • Adapter unit 5 is arranged vertically above the pump unit 3.
  • FIG. 6C illustrates an embodiment of a drive shaft 16 and rotor 18.
  • the drive shaft 16 and the rotor 18 are guided in rotation in the stator 17.
  • an axial guide for the adapter unit 5 is in this embodiment, an axial guide for the
  • FIG. 7 shows a schematic view of an embodiment of a system 1 according to the invention for conveying liquid media.
  • FIGS. 7A and 7B show a riser 19 for conducting the liquid
  • FIG. 7B shows an enlarged detail from FIG. 7A.
  • the adapter unit 5 is coupled to the tongues 15 * of the first part 7 to the rotation 27 and arranged vertically below the pumping unit 3.
  • no second part 9 of the adapter unit 5 is needed.
  • a first elastomer outer jacket surface 11 of the adapter unit 5 on the inner wall of the standardized receiving sleeve 28 of the riser 19.
  • Connecting sleeve 29 can be seen, with the pipe sections of the piping of the
  • Riser 19 are connected to each other.
  • a receiving sleeve 28 is arranged between two connecting sleeves 29. While the connecting sleeves 29 are arranged on the outside of the riser 19, the receiving sleeve 28 causes a regional narrowing of the riser 19th
  • FIGS. 8 show a schematic view of a further embodiment of a system 1 according to the invention for conveying liquid media.
  • the adapter unit 5 is arranged vertically above the pumping unit 3.
  • FIG. 8B shows a section from FIG. 8A
  • FIG. 8C shows a further section from FIG. 8A.
  • Figure 8C illustrate the adapter unit 5, consisting of the first part 7 and the second part 9 (see Figures 1 to 3).
  • the second part 9 is screwed onto the stator 17 and engages in the first part 7 a.
  • the first part 7 is brought with its formed by an elastomer outer jacket surface 11 with the standardized receiving sleeve 28 of the riser 19 as described below in Appendix and forms a seal from this.
  • the drive shaft 16 is shown, which extends along the longitudinal axis of the adapter unit 5 through the adapter unit 5 or through the first part 7 and the second part 9 of the adapter unit 5.
  • the tongues 15 * of the first part 7 of the adapter part 5 formed at least in regions with an enlarged diameter Di5 make it possible to pass through them of the adapter part 5 by a the receiving tube 19 constricting receiving sleeve 28 springs of the tongues 15 * inside. After leaving the constriction, the tongues snap 15 * secure. By disengaging the tongues 15 *, the adapter unit 5 with the pre-assembled in the riser 19 receiving sleeve 28 can be secured in conjunction.

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  • 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)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)

Abstract

L'invention concerne un système d'extraction de milieux liquides à partir d'un forage. Le système comprend une colonne d'extraction, qui s'étend au moins approximativement dans le sens de la longueur du forage, ainsi qu'un ensemble de pompage, logé dans la colonne d'extraction, qui comporte un stator et un rotor. Il comprend également une ligne de transmission reliée au rotor afin de déplacer ce dernier de manière excentrée, ainsi qu'un ensemble adaptateur qui est relié au stator et qui maintient ledit stator pratiquement immobile dans la colonne d'extraction au moyen d'un appui bloquant contre cette dernière. L'invention concerne en outre un procédé d'installation d'un ensemble de pompage réalisé sous la forme d'une pompe à vis excentrée dans un forage.
EP14789135.2A 2013-08-07 2014-08-05 Système d'extraction de milieux liquides à partir d'un forage ainsi que procédé d'installation d'un ensemble de pompage réalisé sous la forme d'une pompe à vis excentrée dans un forage Withdrawn EP3036438A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013108493.1A DE102013108493A1 (de) 2013-08-07 2013-08-07 System zur Förderung flüssiger Medien aus einem Bohrloch sowie Verfahren zur Installation einer als Exzenterschneckenpumpe ausgebildeten Pumpeinheit in einem Bohrloch
PCT/DE2014/000401 WO2015018390A2 (fr) 2013-08-07 2014-08-05 Système d'extraction de milieux liquides à partir d'un forage ainsi que procédé d'installation d'un ensemble de pompage réalisé sous la forme d'une pompe à vis excentrée dans un forage

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US (1) US20160138346A1 (fr)
EP (1) EP3036438A2 (fr)
CN (1) CN105392993B (fr)
AR (1) AR097256A1 (fr)
AU (1) AU2014305138B2 (fr)
BR (1) BR112016001994B1 (fr)
CA (1) CA2919362C (fr)
DE (1) DE102013108493A1 (fr)
MX (1) MX2016001664A (fr)
RU (1) RU2657064C2 (fr)
WO (1) WO2015018390A2 (fr)

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Publication number Publication date
AU2014305138B2 (en) 2017-10-05
RU2657064C2 (ru) 2018-06-08
BR112016001994A2 (pt) 2017-08-01
WO2015018390A2 (fr) 2015-02-12
BR112016001994B1 (pt) 2022-05-03
CA2919362A1 (fr) 2015-02-12
AU2014305138A1 (en) 2016-02-18
US20160138346A1 (en) 2016-05-19
CN105392993A (zh) 2016-03-09
AR097256A1 (es) 2016-03-02
RU2016107975A (ru) 2017-09-14
CA2919362C (fr) 2017-06-27
WO2015018390A3 (fr) 2015-04-09
CN105392993B (zh) 2017-08-25
MX2016001664A (es) 2016-04-13
DE102013108493A1 (de) 2015-02-12

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