WO2016116633A1 - Système de transport tube en tube et procédé - Google Patents

Système de transport tube en tube et procédé Download PDF

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Publication number
WO2016116633A1
WO2016116633A1 PCT/EP2016/051438 EP2016051438W WO2016116633A1 WO 2016116633 A1 WO2016116633 A1 WO 2016116633A1 EP 2016051438 W EP2016051438 W EP 2016051438W WO 2016116633 A1 WO2016116633 A1 WO 2016116633A1
Authority
WO
WIPO (PCT)
Prior art keywords
tube
conveyor
unit
outer tube
conveyor unit
Prior art date
Application number
PCT/EP2016/051438
Other languages
German (de)
English (en)
Inventor
Michael Windus
Uwe Schoenke
Original Assignee
Geo Service Eschwege
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 Geo Service Eschwege filed Critical Geo Service Eschwege
Priority to EP16704397.5A priority Critical patent/EP3247874B1/fr
Publication of WO2016116633A1 publication Critical patent/WO2016116633A1/fr

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
    • 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
    • E21B43/128—Adaptation of pump systems with down-hole electric drives

Definitions

  • the present invention relates to an apparatus and a method for pumping a liquid within a liquid reservoir, for example for pumping water in the context of a geothermal project in a borehole.
  • Scope of the invention is, inter alia, the promotion of domestic and drinking water, and any liquid
  • the document US 5,064,335 A relates to a delivery unit with a hydraulic motor with two cylinders for driving a piston pump.
  • the disadvantage is that the promotion completely fails as soon as the engine or pump are damaged.
  • the object underlying the present invention is to provide a method and a device which overcomes the above-mentioned disadvantages of the known systems and to minimize the failure of the conveyor system due to damage at great depth. This object is achieved with the features of the independent claims.
  • the dependent claims relate to further aspects of the invention.
  • the solution according to the invention is based on the parallel operation of several conveyor units in the borehole. These promote fluid from an earth hole, e.g. a borehole, which they deliver independently of each other into a common production line.
  • the conveyor units are preferably mounted one above the other.
  • the tube-in-tube conveying device according to the invention is a preferred embodiment of these structurally very demanding conditions.
  • a preferred configuration as explained in greater detail in the figures, has two
  • Conveyor units can be stacked. It should be provided for this purpose next to each upper conveyor unit, a sufficient pumping space, which makes it possible to pass the funded by the underlying conveyor units liquid on the upper conveyor unit.
  • the working in parallel operation conveyor units are preferably adapted to the usual round holes in round holes.
  • the mold may also take any other suitable form to be inserted into a burial hole. As preferred
  • Embodiment is here a tube-in-tube conveying device described, which is an inner tube of smaller diameter, which is incorporated by means of a manufacturing process in an outer tube of larger diameter.
  • a tube becomes an elongated, hollow, understood to both sides open object, with preferably round
  • Cross-section (cylindrical), but as shown in the figures, also forms of varying diameter or cross-section or other forms fall under it, as long as they are compatible with the borehole.
  • the device comprises an outer red with an inlet and a drain, a first conveyor unit with an inlet and a drain, wherein the first conveyor unit is mounted below (ie upstream) of the outer tube.
  • Device further comprises an inner tube with a smaller diameter than the outer tube, wherein the inner tube is disposed within the outer tube and thereby defines an outer delivery space between the inner and the outer tube, at least one further conveying unit with an inlet and a drain, wherein the at least one further conveyor unit is arranged in the interior of the inner tube, and wherein the conveyor units are hydraulically connected in parallel and the first conveyor unit is preferably arranged below the at least one further conveyor unit.
  • the outer delivery chamber may be suitable for passing the liquid conveyed by the first delivery unit past the at least one further delivery unit.
  • the conveyor units have their respective inlet preferably below the respective sequence.
  • the feeds of the conveyor units can be designed as vertical slots and the
  • Inlet of the inner tube may be formed from at least one inlet tube and the at least one inlet tube to establish a continuous connection between the space outside the outer tube and the space within the inner tube.
  • the at least one feed pipe may be suitable for liquid in its interior
  • the device may have a common conveyor line above the at least one further conveyor unit, which is adapted to collect separately conveyed liquids of the first and further conveyor units together.
  • the first conveyor unit and / or the at least one further conveyor unit can
  • check valve at its outlet.
  • the device may further comprise at least one venting channel which establishes a connection between the space outside the outer tube and the space inside the inner tube and is preferably arranged at the upper end of the outer tube and is preferably closable.
  • the device may include
  • Connecting pipe for electrical lines which connects the space within the at least one further inner tube with the space outside of the outer tube.
  • the lower conveyor unit may also have a short tube to increase the
  • the conveyor with two conveyor units has the further advantage that its capacity can be varied to a wider extent than just with a conveyor unit. So it is usually only possible to throttle a single conveyor unit in its capacity to half or completely off.
  • Figure 1 is a schematic representation of the structural design of the upper part of the conveying device according to an embodiment of the invention
  • Figure 2 is a schematic flow and inflow diagram of the upper / inner conveyor unit according to an embodiment of the invention
  • Figure 3 is a schematic flow and inflow diagram of the lower / outer conveyor according to an embodiment of the invention.
  • Figure 4 is a schematic flow and inflow diagram of both conveyors according to an embodiment of the invention.
  • Figure 5 is a schematic representation (plan view) along the line A of Figure 2 according to an embodiment of the invention.
  • Figure 6 is a schematic representation of a cable duct to the inner conveyor unit according to another embodiment of the invention
  • Figure 7 is a schematic representation of the sealing of the cable gland of Figure 6 according to a further Aus spalirungsform of the invention
  • Figure 8 is a schematic representation of a tube-in-Rolir conveyor system with an alternative cable guide according to another embodiment of the invention.
  • Figure 9a is a schematic representation of an outer tube of the tube-in-tube
  • Figure 9b is a schematic representation of an inner conveyor unit of the tube-in-tube conveyor system with the cable guide of Aus collirungsform according to Figure 8;
  • Figure 9a is a schematic representation of a lower conveyor unit of the tube-in-tube Conveyor system with the cable guide of the embodiment according to FIG. 8.
  • FIG. 1 A preferred embodiment of the invention is shown schematically in FIG.
  • the tube-in-tube system 100 according to the present invention is shown schematically without pumps.
  • 1 shows the tube-in-tube system 100 with a flange 101 for mounting the transition from a common delivery chamber 108 to the common delivery line (indicated above the flange 101).
  • Fig. 1 additionally shows flange 102 for opening the mounting lid, for the purpose of incorporating an inner conveyor (not shown).
  • the conical connection between the first flange 101 and the second flange 102 shown in Fig. 1 may e.g. also be executed.
  • Fig. 1 further shows the inner mounting space 104, and an outer delivery space 105.
  • the inner mounting space 104 can receive the inner conveyor and the outer
  • Delivery chamber 105 can conduct liquid past the inner tube 109. Further, Fig. 1 shows
  • Inlet pipes 106 communicating with the inner pipe 109.
  • the inlet tubes 106 allow a supply of liquid into the inner mounting space 104.
  • the number of inlet tubes 106 may be attached to the circumference of the outer tube 1 10 of the tube-in-tube system 100 in any number and shape.
  • the flange 107 in Fig. 1 defines the transition to the lower
  • Feed unit (not shown), which will be described in more detail below. It will be understood by those skilled in the art that the described fasteners (e.g., flanges 101, 102, 107) may also be implemented as threaded connections, sleeves, pins, etc.
  • Fig. 1 further shows a ventilation channel 103 for venting the inner tube.
  • Ventilation channel 103 ensures the correct filling of the inner mounting space 104. The emergence of an air bubble during assembly in the inner mounting space 104 is excluded. However, several ventilation channels of any shape and size within the scope of the tube-in-tube system 100 can be processed.
  • the ventilation duct 103 can additionally be designed to be closable. Further, multiple venting channels may be mounted on the periphery of the tube-in-tube system 100.
  • the / the ventilation duct / ventilation channels can / can be formed horizontally to the main axis of the inner tube, or at an angle to the main axis of the inner tube.
  • FIG. 2 shows the tube-in-tube system 100 of FIG. 1 with a delivery unit 200 according to an embodiment of the invention.
  • the tube-in-tube system 100 receives the upper conveyor unit 200 inside the tube (inner mounting space 104).
  • the delivery unit (also called inner delivery unit) 200 according to FIG. 2 comprises a check valve 201, a
  • Liquid inlet screen 203 and four drive units 204. Although four drive units 204 are shown here by way of example, the present invention is not limited to the number of drive units 204. Any suitable number of drive units 204 may be used. For the liquid feed from the liquid reservoir to the upper one
  • the one or more inlet pipes 106 formed from outside to inside in the inner delivery chamber 104 throughout. This is intended to prevent the liquid conveyed by a lower feed unit from mixing with the liquid coming from the outside, which is sucked in by the upper feed unit 200.
  • the liquid inlet sieve 203 is formed here as an example as a plurality of vertical slots. Other geometries of the
  • Liquid inlet sieve 203 are of course not excluded.
  • Fig. 2 shows the flow of liquid during operation of the inner conveyor unit 200 based on the drawn unfilled arrows.
  • the inner feed unit 200 sucks the liquid from a liquid reservoir (eg a well) via the feed pipes 106.
  • the liquid is guided past the drive units 204. This has the additional effect of cooling the drive units 204.
  • the liquid through the liquid inlet screen 203 in an inner delivery chamber 202 of the conveyor unit 200 in the feed line 108, and thus surface in the direction of flow of the unfilled arrows promoted.
  • the lower conveyor unit 300 is preferably constructed similar to the upper conveyor unit 200 (see Fig. 2). That is, the lower conveyer unit 300 has a check valve 301, a
  • FIG. 3 further shows the flow of the liquid during operation of the lower conveyor unit 300 with reference to the solid arrows shown.
  • the lower feed unit 300 draws the liquid to be conveyed over the
  • Liquid inlet screen 303 On. Now takes the liquid to be conveyed their way through the inner delivery chamber 302 of the lower conveyor unit 300 and the outer delivery chamber 105 of the tube-in-tube delivery system 100 and is in the flow direction of the solid arrows on the
  • FIG. 4 shows the pipe-in-pipe conveyor system 100 according to the invention with the first and the second conveyor unit 200, 300.
  • FIG. 4 shows a flow and inflow diagram during the operation of both conveyors 200, 300
  • Fluid paths the course of the liquid, which is conveyed by the upper conveyor unit 200, with unfilled arrows, and the course of the liquid, which is conveyed by the lower conveyor unit 300, shown with solid arrows.
  • the promotion of the liquid runs as follows from.
  • the upper delivery unit 200 located in the inner delivery chamber 104 sucks its liquid to be conveyed through the liquid inlet screen 203 independently of and without contact with the liquid conveyed by the lower delivery unit 300 and conveys same into the common delivery chamber 108 overgrounds.
  • the lower conveyor unit 300 seated below the tube-in-tube conveyor system 100 in turn conveys liquid directly from the reservoir through the liquid inlet screen 303, without contact with the liquid conveyed by the inner conveyor unit 200, through the conveying space 105 between the inner and the outer Pipe in the common production line 108 and finally overground.
  • the lower conveying unit 300 transports the liquid past the inner conveying unit 200 into the common conveying space 108.
  • the inner delivery unit 200 receives the liquid to be conveyed through the already mentioned inflow pipes 106 through the space created (outer delivery space 105) between the inner 109 and outer pipe 110. The separately conveyed liquids therefore only come together in the common delivery space 108.
  • each check valves 201, 301 are provided to increase the reliability.
  • a check valve 201, 301 is preferably attached to the outlet of one of the conveyor unit 200, 300 and thus protects it from the penetration of liquid counter to the conveying direction. But it is also conceivable
  • Check valves also omitted. If necessary, the system can be operated with and without a so-called over-pipe (also called short pipe) above the lower feed unit to increase the flow speed.
  • over-pipe also called short pipe
  • Fig. 5 shows a representation in plan view along the line A of Fig. 2. It is located in the center, within the inner tube of the mounting space 104 for the inner
  • Feed unit 200 Between the inner and the outer tube 109, 1 10 is the outer delivery chamber 105 for the lower conveyor unit 300.
  • the meandering arrows indicate the course of sucked by the inner conveyor unit 200, liquid. As can be seen, the liquid is thereby passed from an external reservoir to the mounting space 104 of the inner conveyor unit 200 without this liquid comes into contact with liquid in the outer pumping chamber 105.
  • Feed unit 200 to the inner tube located 109 takes place, for example via the flange connection shown 401, a "liner hanger” system and includes all common Absetzfeaturen for diving centrifugal pumps. Furthermore, the ventilation channels 103 already described above are shown in FIG.
  • FIG. 6 shows a passage of the motor connection cable through the common conveyor line 108 and the inner delivery chamber 104 to the inner conveyor unit 200.
  • the supply of electrical lines for the inner conveyor unit 200 is ensured.
  • a tube 501 is introduced from the outer tube 110 through the outer delivery space 105 to the mounting space 104 for connection of the inner delivery unit 200.
  • This type of implementation is particularly advantageous since the cables can be guided to the inner conveyor unit 200 without coming into contact with liquid. Also suitable is any similar construction which allows a cable to be routed through it.
  • Fig. 7 shows the sealing of the inserted tube 501 between the inner tube 109 and the outer tube 1 10.
  • the inserted tube 501 is in the lower region (portion of the inner tube 109) by means of a threaded which with sealants. Gasket rings etc. is screwed in (inserted tube 501).
  • the introduced tube to an external thread and a cover of the inner tube 109 has a corresponding internal thread.
  • the introduced tube to an external thread and a cover of the inner tube 109 has a corresponding internal thread.
  • the introduced tube to an external thread and a cover of the inner tube 109 has a corresponding internal thread.
  • the introduced tube to an external thread and a cover of the inner tube 109 has a corresponding internal thread.
  • the introduced tube to an external thread and a cover of the inner tube 109 has a corresponding internal thread.
  • the introduced tube 501 is preferably a cloth bushing, a sealing disc o.ä. introduced into the outer tube 110.
  • FIG. 8 shows another exemplary embodiment for introducing and connecting electrical cables to the inner conveyor unit 200 and the lower conveyor unit 300.
  • 8 shows a first cable harness 600 for connection to the inner conveyor unit 200 and a second cable harness 700 for connection to the lower conveyor unit 300.
  • the preferred embodiment shown here is substantially rigid
  • Cable strands 600, 700 can also be flexible.
  • the two cable strands 600, 700 are guided on the outer tube 1 10 along the outside.
  • a cover 800 such as a cover plate provided in the area of the connection of the first cable strand 600 to the inner Feed unit 200 is preferably a cover 800, such as a cover plate provided.
  • the covering device 800 preferably closes with the outer tube 1 10 in a form-fitting manner in order to achieve the most smooth or rectilinear shape of the outer tube 110. Furthermore, the provision of the covering device 800 avoids the penetration of dirt particles into the tube-in-tube conveying system 100, which, inter alia, can extend the life of the tube-in-tube conveying system 100.
  • the second cable harness 700 continues to be guided below the cover device 800 and along the outer tube 110 up to the lower conveyor unit 300.
  • the cable strands 600, 700 may each consist of one or more metallic conductors, such as copper, which are provided with an outer shield (outer insulator layer).
  • the cross sections of the metallic conductors depend essentially on the required currents of the conveyor units 200, 300 to be operated. The cross sections used also determine the rigidity of the cable strands 600, 700.
  • the cable strands 600, 700 can also be routed in cable ducts (not shown), so that the corresponding electrical lines are routed inside these cable ducts.
  • the use of cable ducts has the advantage, for example, that defective cables can be replaced more easily and the cables in the interior of the cable ducts are additionally protected against external influences.
  • FIGS. 9a to 9c show the individual components of the exemplary embodiment of the tube-in-tube conveyor system 100 according to FIG. 8 in greater detail.
  • Fig. 9a shows a
  • FIG. 9b shows the inner conveyor unit 200 in a side view.
  • 9c shows the lower conveyor unit 300 in a front view. Referring to Fig. 9a, a first channel 1 1 1 and a second channel 112 in the outer tube
  • the channels 1 1 1, 1 12 form a recess in the outer tube 110 so that the cable strands 600, 700 of the channels 11 1, 1 12 are substantially completely absorbed. In other words, the cable strands 600, 700 terminate substantially flush with the outer tube 110. As a result, a smooth as possible or rectilinear shape of the outer tube 1 10 is achieved and a lowering operation of the tube-in-tube delivery system 100 is facilitated.
  • the first channel 111 is preferably wider than the second channel 112, since the first channel 1 1 1 both cable strands 600, 700 receives.
  • the second channel 1 12 receives only the wire harness 700 and is preferably less broad than the first channel 1 11.
  • the width and depth of the first channel 11 1 is adapted to the width and depth of the first harness 600 and the second harness 700 , Accordingly, it is preferable that the width and depth of the second channel 1 12 are adapted to the width and depth of the second wire harness 700.
  • This embodiment is particularly advantageous in order to ensure a smooth as possible or straight shape of the outer tube 110.
  • the two channels 1 1 1, 1 12, for example also have the same width in order to simplify the production and save costs.
  • the outer tube 110 For passing the first cable strand 600 to the inner conveyor unit 200, the outer tube 110 also has an opening 113.
  • the opening 113 is formed as shown in Fig. 9a substantially oval.
  • the flange 102 has a recess 14 in which the first and the second cable harness 600, 700 can be accommodated.
  • a smooth as possible or rectilinear shape of the tube-in-tube conveyor system 100 is ensured.
  • the first harness 600 on an inwardly bent portion 601 on.
  • Through an opening 205 of the inner conveyor unit of the harness 600 is guided to the electrical terminal 206 of the inner conveyor unit 200 and electrically connected thereto.
  • 9 c shows the lower conveyor unit 300 and the second cable strand 700.
  • the second cable strand 700 is guided along the lower conveyor unit 300 and, similarly to the cable strssen 600, an inwardly bent portion 701 on.
  • the cable strand 700 is guided to the lower conveyor unit 300 and its electrical connection 306.
  • the lower conveyor unit 300 also has an opening 305, whereby the second
  • Cable harness 700 can be easily guided to its electrical connection 306.
  • the wire harness 700 has another bent portion (not shown). at the point where the wire harness leaves the channel 1 12 and thus follows in

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Pusher Or Impeller Conveyors (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Abstract

L'invention concerne un dispositif et un procédé de transport d'un liquide. Le dispositif comprend un tube extérieur (110), une première unité de transport (300) présentant une arrivée (303) et une évacuation, le premier dispositif de transport étant agencé au-dessous du tube extérieur, un tube intérieur (109) présentant un diamètre inférieur à celui du tube extérieur, le tube intérieur étant agencé à l'intérieur du tube extérieur et définissant un espace de transport extérieur (105) entre le tube intérieur et le tube extérieur, au moins une autre unité de transport (200) présentant une arrivée (203) et une évacuation, l'autre ou les autres unités de transport étant agencées à l'intérieur du tube intérieur, et les unités de transport étant montées hydrauliquement en parallèle et la première unité de transport étant agencée de préférence au-dessous de l'autre ou des autres unités de transport.
PCT/EP2016/051438 2015-01-23 2016-01-25 Système de transport tube en tube et procédé WO2016116633A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP16704397.5A EP3247874B1 (fr) 2015-01-23 2016-01-25 Système d'extraction tuyau dans tuyau et procédé

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015201131.3 2015-01-23
DE102015201131 2015-01-23

Publications (1)

Publication Number Publication Date
WO2016116633A1 true WO2016116633A1 (fr) 2016-07-28

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ID=55357957

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2016/051438 WO2016116633A1 (fr) 2015-01-23 2016-01-25 Système de transport tube en tube et procédé

Country Status (3)

Country Link
EP (1) EP3247874B1 (fr)
DE (1) DE202016000455U1 (fr)
WO (1) WO2016116633A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5064335A (en) 1989-06-14 1991-11-12 Denis Tardif Apparatus for handling cargo
GB2345307A (en) * 1999-01-04 2000-07-05 Camco Int Dual electric submergible pumping system
US6250390B1 (en) * 1999-01-04 2001-06-26 Camco International, Inc. Dual electric submergible pumping systems for producing fluids from separate reservoirs
US20040060707A1 (en) * 2002-09-30 2004-04-01 Baker Hughes Incorporated Protection scheme for deployment of artificial lift devices in a wellbore
US20050034871A1 (en) * 2003-08-13 2005-02-17 Scarsdale Kevin T. Submersible pumping system
US20070274849A1 (en) 2006-05-23 2007-11-29 Baker Hughes Incorporate. Capsule for Two Downhole Pump Modules

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5064335A (en) 1989-06-14 1991-11-12 Denis Tardif Apparatus for handling cargo
GB2345307A (en) * 1999-01-04 2000-07-05 Camco Int Dual electric submergible pumping system
US6250390B1 (en) * 1999-01-04 2001-06-26 Camco International, Inc. Dual electric submergible pumping systems for producing fluids from separate reservoirs
US20040060707A1 (en) * 2002-09-30 2004-04-01 Baker Hughes Incorporated Protection scheme for deployment of artificial lift devices in a wellbore
US20050034871A1 (en) * 2003-08-13 2005-02-17 Scarsdale Kevin T. Submersible pumping system
US20070274849A1 (en) 2006-05-23 2007-11-29 Baker Hughes Incorporate. Capsule for Two Downhole Pump Modules

Also Published As

Publication number Publication date
EP3247874A1 (fr) 2017-11-29
EP3247874B1 (fr) 2020-04-22
DE202016000455U1 (de) 2016-04-19

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