WO2014111104A2 - Vorrichtung zum abfördern von bohrklein - Google Patents
Vorrichtung zum abfördern von bohrklein Download PDFInfo
- Publication number
- WO2014111104A2 WO2014111104A2 PCT/EP2013/003594 EP2013003594W WO2014111104A2 WO 2014111104 A2 WO2014111104 A2 WO 2014111104A2 EP 2013003594 W EP2013003594 W EP 2013003594W WO 2014111104 A2 WO2014111104 A2 WO 2014111104A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- receiving
- drilling
- cuttings
- receiving body
- bypass
- Prior art date
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 76
- 239000007788 liquid Substances 0.000 claims abstract description 12
- 238000005086 pumping Methods 0.000 claims abstract description 3
- 238000005520 cutting process Methods 0.000 claims description 44
- 239000002689 soil Substances 0.000 claims description 9
- 239000012530 fluid Substances 0.000 claims description 6
- 239000000725 suspension Substances 0.000 description 14
- 239000002002 slurry Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000011001 backwashing Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/01—Arrangements for handling drilling fluids or cuttings outside the borehole, e.g. mud boxes
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/28—Enlarging drilled holes, e.g. by counterboring
Definitions
- the invention relates to a device for conveying away from a drilling tool when creating a borehole for laying a pipeline cuttings with at least one pump for pumping a mixed with the cuttings drilling fluid and at least one receiving body with at least one receiving chamber, the openings via a Bohrklein Scheme behind the drilling tool is connected.
- Such a device is known from US 5,269,384.
- This document discloses a method of a device for expanding and cleaning a borehole.
- a pilot hole is produced by means of an HDD bore.
- a reamer is attached to the pilot drill string.
- a pipeline is provided, which substantially corresponds to the diameter of the pilot drill string.
- a liquid jet pump is provided which is driven by drilling slurry flowing in the drill string. Due to the vacuum created on the suction side of the pump, the cuttings are sucked in behind the reamer and transported away through the pipeline.
- the device comprises a substantially cylindrically shaped receiving body with a receiving chamber.
- the receiving body comprises on its outside openings which allow passage of the drilling suspension with the cuttings.
- the passage is made by sucking the liquid with the cuttings by the existing in the liquid jet pump vacuum.
- a roller provided with projections is arranged in the interior of the receiving chamber and rotates over the inside of the outer wall of the receiving chamber, wherein the projections enter the openings and release them again.
- This solution has the disadvantage that it can not be provided with sufficient precision that the openings are actually set free again.
- the object of the invention is therefore to provide a device for removing cuttings, with which it is possible to reliably remove the drill cuttings via a hydraulic delivery.
- the solution of the invention provides that in the receiving body, a receiving element for mechanically receiving the cuttings is provided on which at least a portion of the openings are arranged, via which the cuttings passes into the receiving chamber.
- the advantage here is that the cuttings are not sucked, but passes through a mechanical recording in the receiving chamber, from which it can then be hydraulically carried away. It is also advantageous that the size of the openings corresponds to the maximum grain size, which is conveyed by the pump. As a result, a classification of the cuttings is achieved in a simple manner.
- a further teaching of the invention provides that the surface of the openings is designed so that the cuttings, preferably without suction or with low flow velocity, can pass through the opening. As a result, appropriate caking of the opening walls and a fixed eyes are avoided by too large Bohrklein.
- Another teaching of the invention provides that in the receiving chamber, a suction port for hydraulic suction of cuttings in the pump is provided. This makes it possible in a simple manner, to ensure the removal from the receiving chamber itself.
- Another teaching of the invention provides that at least two receiving elements are provided and / or at least two receiving chambers are provided. By increasing the number of receiving elements and receiving chambers, the discharge efficiency of the device is improved.
- a further teaching of the invention provides that the receiving body is a buoyancy body with at least one air-filled section. As a result, less ballast acts on the drill string, so that a drop is reduced. Furthermore, less pressure acts on the ground and the torque produced by the device according to the invention is reduced.
- a further teaching of the invention provides that the diameter of the receiving body substantially corresponds to the diameter of the respective borehole to be drilled. As a result, the drilling tool experiences a better centering in the borehole.
- the receiving body has at least one bypass for bypassing the receiving body. It is particularly preferred that the bypass has a spirally and / or straight running section, and / or that the bypass is arranged on the back of the receiving element, and / or that the bypass is arranged on the outside of the receiving body.
- the bypass channels different deployment modes of the device according to the invention are possible.
- Arranging the bypass on the back of the receiving elements makes it difficult to pass the cuttings through the bypass into the underlying borehole.
- the provision of a bypass that allows cuttings, not can pass through the openings can pass through the bypass into the hole located behind it.
- a further teaching of the invention provides that the bypass at the back of the receiving body has a receiving tool, and / or that the bypass has a shape that minimizes the passage of cuttings in the drilling operation and promotes the passage of cuttings in the expansion drive.
- This is preferably a helical bypass whose bending has a direction opposite to the direction of rotation of the drilling operation.
- the pump is a liquid jet pump. It is particularly preferred that the liquid jet pump has a nozzle, a diffuser and a mixing chamber, wherein the nozzle relative to the diffuser for closing the mixing chamber is designed to be movable. This makes it possible to flush closures within the drill string through which the drilling slurry mixed with cuttings is removed.
- the receiving element has a receiving tool, which is preferably carried out releasably.
- the receiving body is detachably arranged on the pump, so that the receiving body is replaceable depending on the diameter of the borehole to be created.
- the receiving element is releasably arranged on the receiving body, so that the receiving element is replaceable depending on the soil in which the borehole is to be created, and / or that a receiving tool arranged on the receiving tool is detachably arranged. Due to the solubilities, the device according to the invention can be easily adapted to the respective borehole sizes or ground conditions.
- the drilling tool is arranged on a drilling device and / or on the receiving body, preferably on the receiving element.
- Another teaching of the invention provides a drilling apparatus with a device of the type described above.
- a further teaching of the invention provides for the use of a previously described device with drilling tools arranged thereon as a drilling device.
- FIG. 1 is a perspective view of the device according to the invention
- FIG. 2 is a front view of FIG. 1,
- FIG. 3 is a perspective view of a liquid jet pump
- FIG. 4 is a perspective view of a first embodiment of a
- FIG. 5 is a perspective view of a second embodiment of FIG. 1,
- FIG. 6 shows a sectional view of FIG. 1, a second sectional view of FIG. 1, FIGS. 8-13 different operating and operating states of FIG. 1, a schematic diagram of an inventive use of the device according to the invention, and FIG 15 is a supplement to FIG. 14.
- FIG. 14 shows the use according to the invention of a device 10 according to the invention.
- a borehole 101, 102 under an obstacle 105 from a starting point 103 to a destination point 104 is created in a ground 100 (ground is to be understood below as both solid and loose).
- a pipeline (not shown) is introduced into the borehole 101, 102 into the borehole 101, 102.
- a drilling rig 10 is provided to create the borehole 101, 102.
- drill bit (not shown) is advanced along drill line 106 of borehole 101, 102 with a drill string 111 from a starting point 103 to a target point 104 by advancing the drill bit (not shown) by successively installing new drill string sections.
- the drilling device 1 12 is composed of a drill head 113 and the device 10 according to the invention.
- another drill string 114 is attached.
- the boring device 112 is withdrawn along the drilling line 106, for example, from the target point 104 to the starting point 103.
- the first drill string 1 1 1 is gradually removed and the second drill string 114 is installed accordingly.
- FIG. 112 is provided depending on the type of soil with a drill head 113, whose diameter corresponds either to the final diameter of the borehole 101, 102, or successively different sized drilling devices are used with different diameters to the borehole 101, 102 in several passes to the desired diameter dilate.
- the pipeline (not shown) to be laid is then introduced into the borehole 101, 102.
- the borehole 101, 102 is filled with a drilling suspension 115.
- the task of the drilling suspension 1 15 is to keep the borehole 101, 102 open and at the same time to remove the cuttings loosened from the boring device 112 from the borehole.
- the method described here is called Horizontal Directional Drilling (HDD).
- FIG. 1 shows the device 10 according to the invention.
- the device 10 comprises a receiving body 11 and a pump 12. On the receiving body 11 receiving elements 13 are provided, which are provided with openings 14. The openings 14 are located on a radially outwardly curved receiving surface 15. On the receiving surface 15 guide elements 16 are provided, via which a better feeding of the cuttings to the openings 14 is achieved. In the illustrated embodiment, the guide elements 15 are designed as sheets. These can be adapted depending on the soil / rock to be loosened. Inside the receiving element 13 is a receiving chamber 17 (see Fig. 7), which is connected to a suction port 18 to the interior of the receiving body 1 1 out.
- the receiving chamber 17 is formed by a chamber rear wall 19, an end wall 21 of the receiving body 21, a cylinder wall 22 of the receiving body 11 and a chamber side wall 20, which forms a front surface, and the receiving surface 15.
- the suction port 18 extends through the end wall 21 therethrough.
- the receiving body 11 itself is formed by the end wall 21, on which the receiving elements 13 are located, and the cylinder wall 22 and a corresponding rear wall 23.
- an opening 24 (see FIG. 4) is provided centrally in the pivot point. Radially around the opening 24 around holes 25 are provided.
- receiving tools 40 are provided, which are integrated either in the cylindrical surface 22 in which a portion 41 is made bevelled in front of the exception surface 15, or as a separate receiving tool element 42, also with a chamfered portion 41, in front of the receiving surface 15 integrated in a recess 43 arranged in the cylindrical surface 22, are executed.
- the picking tools 40 the use as a broaching tool without combination with a drill head 13 is possible to remove deposited cuttings from the borehole 101, 102 in a special clearing step. Both variants are shown in FIG. 1.
- the picking tools 40 may also be designed as drilling tools (not shown). This is not shown in the drawings.
- a drain for drilling suspension (not shown) must be provided on the drill string 111 or on the drill string connector 28 to supply drilling slurry to the drilling area.
- bypass 26 In the cylinder wall 22 of the receiving body 11 are bypass 26, which are either straight or curved (see Fig. 5) are executed.
- the bypass 26 extends over the entire length of the cylinder wall 22.
- the bypass 26 is disposed behind the chamber rear wall 19 to prevent entry of the cuttings into the bypass 26 during normal operation of the device 10.
- recording tools At the output 45 of the bypass 26 also recording tools (not shown) may be provided for receiving soil or cuttings with which this / this is taken when removing the device 10 in the borehole 102 and passed into the bypass and then the receiving body 11 over the bypass 26 is conveyed through into the cuttings area 17.
- the device 10 includes a pump 12, which is designed in the present embodiment as a so-called liquid jet pump 27.
- the pump 12, 27 each comprise a drill string connection 28, 29 for the drill string 111, 114.
- a middle part 30 of the pump 27 is a nozzle 32 and suction ports 33 for connection to the suction port 18 of the receiving chamber 17 .
- Behind the mixing tube 34 is followed by a diffuser 35.
- the Bohrstrangan say 28, 29 are connected to the central part 30 via flanges 36, 37.
- the suction ports 33 are also provided with a flange 38 which serves to connect to the suction port 18 of the receiving chamber 17.
- the Mitteilteil 30 of the pump 12, 27 is inserted into the opening 34. Via the flanges 36, 37, the drill string connections 28, 29 are connected to the middle part 30 of the pump 12 via bolts 39.
- Fig. 6 shows the nozzle 32 in the normal operating position, so that the mixing chamber 31 is in hydraulic communication with the mixing tube 34 and the suction ports 33.
- Fig. 7 the nozzle 32 is moved into the mixing chamber 31 so that it is in communication with the mixing pipe 34, so that there is a hydraulic separation between the mixing pipe 34 and the mixing chamber 31 and the associated suction ports 33.
- the nozzle is acted upon by a spring (not shown) and secured with a bolt (not shown).
- FIGS. 8 to 13 show various operating states in connection with the device 10 according to the invention.
- the nozzle 32 In the normal operating condition ( Figure 8), the nozzle 32 is in the open position.
- the drilling slurry 115 flows through the interior 116 of the drill string 111 to the drilling apparatus 112 and exits the drill head 113 via nozzles (not shown).
- the drilling suspension 115 By the drilling suspension 115, the cuttings are washed away at the point of engagement of the drill head 113 with the bottom 100 and enters a Bohrklein Scheme 117 behind the drill bit 113.
- the device 10 Behind the drill bit 113, the device 10 is arranged consisting of pump 12 and receiving body 11. About the receiving elements 13, the cuttings are mechanically received, for example via the recording tools 40 and passes through the openings 14 at the receiving surfaces 15 therethrough and enters the receiving chamber 17.
- a portion of the drilling slurry 115 is passed through the drill head 113 and passes over the Bohrstrangan gleich 28 in the pump 12, 27.
- the nozzle 32 Through the nozzle 32, it is accelerated through the mixing chamber 31 into the mixing tube 34, whereby in the mixing chamber 31, a negative pressure, so that the cuttings located in the receiving chamber 17 together with the drilling suspension located there 115 sucked into the mixing chamber 31 via the suction port 18 and the suction port 33 is and is carried along by the accelerated by the nozzle 32 Bohrsuspension in the mixing tube 34. Subsequently, it is conveyed through the interior 1 18 of the drill string 114 after passing through the diffuser 35 from the borehole 101, 102.
- FIG. 9 shows the operating state of the prior art in which a drill bit is used without the device 10.
- the drilling suspension is delivered to the drill head 113 and introduced from there together with the drill cuttings into the borehole 102, from where the borehole suspension 115 together with the drill cuttings exits the borehole at low speed. This is the usual HDD drilling process.
- Fig. 10 shows the use of the device 10 without drill head 1 13 as clearing insert. This insert is used to clean the well as such.
- the drilling suspension emerges from the drill string 111 and, as described for Fig. 8, via the receiving elements 13 through the openings 14 in the receiving chambers 17 and sucked from there via the pump 12, 27 into the mixing chamber 31 and further into the mixing tube 34, from where it is then discharged into the interior 116 of the drill string 114 and discharged from the borehole 101, 102.
- FIG. 11 shows a special case in which a blockage 119 exists within the interior 118 of the drill string 114.
- the nozzle 32 as shown in Fig. 7, moved by the pressure increase in the interior 116, 118 against the mixing tube 34 and the mixing chamber 31 so closed.
- the drilling suspension 115 located in the interior 116 of the drill string 111 is completely pumped into the pump 12, and accelerated accordingly there, so that if necessary while increasing the pump pressure in the pump (not shown) in the drilling rig 110, the blockage 119 is released and out the interior 118 of the drill string 114 is removed.
- Fig. 12 shows a further special case in which the openings 14 of the receiving elements 13 have to be cleaned.
- a valve (not shown) which is closed. This can the drilling slurry 115 no longer through the interior 118 of the drill string
- Fig. 13 shows the case where the device 10 is used as a boring device. This case corresponds to that shown in Fig. 8 with the difference that the soil by drilling tools (not shown) is released and is conveyed away directly via the receiving element 13.
- Fig. 15 further shows a construction site facility on the side from which at the end of the bore, the pipe (not shown) is introduced.
- the drilling fluid 115 is removed from the drill string 114.
- a carriage 120 is positioned on a carriage 121.
- the carriage 120 has a built-in pivot (not shown) and is constructed to intercept rotational movement (torsional forces) from the drill string 114.
- the drilling fluid 115 is guided via a hose 122 and a hose guide 123 of the carriage 121.
- the carriage 120 is pulled up by means of a winch 124 in conjunction with a drive 127 and the new pipe section 126 can be mounted.
- a clamping unit 125 ensures that the pipe section to be mounted is held fast and that the necessary torque for closing a thread 128 can be applied via the drilling rig 110.
- the carriage 121 can be adapted via an adjustable substructure of the inclination of the drill string 114.
- the carriage 121 also includes the necessary measuring equipment (not shown) such as flow meter, pressure sensor necessary to control the system. LIST OF REFERENCE NUMBERS
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2013373842A AU2013373842B2 (en) | 2013-01-18 | 2013-11-28 | Device for conveying away drillings |
CA2897547A CA2897547C (en) | 2013-01-18 | 2013-11-28 | Apparatus for removing drill cuttings |
RU2015134399A RU2637685C2 (ru) | 2013-01-18 | 2013-11-28 | Устройство для отвода буровой мелочи |
EP13802242.1A EP2946061B1 (de) | 2013-01-18 | 2013-11-28 | Vorrichtung zum abfördern von bohrklein |
US14/651,170 US10081992B2 (en) | 2013-01-18 | 2013-11-28 | Device for conveying away drillings |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013000771.2 | 2013-01-18 | ||
DE102013000771.2A DE102013000771A1 (de) | 2013-01-18 | 2013-01-18 | Vorrichtung zum Abfördern von Bohrklein |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2014111104A2 true WO2014111104A2 (de) | 2014-07-24 |
WO2014111104A3 WO2014111104A3 (de) | 2015-05-28 |
Family
ID=49726689
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2013/003594 WO2014111104A2 (de) | 2013-01-18 | 2013-11-28 | Vorrichtung zum abfördern von bohrklein |
Country Status (7)
Country | Link |
---|---|
US (1) | US10081992B2 (de) |
EP (1) | EP2946061B1 (de) |
AU (1) | AU2013373842B2 (de) |
CA (1) | CA2897547C (de) |
DE (1) | DE102013000771A1 (de) |
RU (1) | RU2637685C2 (de) |
WO (1) | WO2014111104A2 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102021125909B4 (de) | 2021-10-06 | 2023-11-09 | Herrenknecht Aktiengesellschaft | Aufweitungsbohrvorrichtung |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5269384A (en) | 1991-11-08 | 1993-12-14 | Cherrington Corporation | Method and apparatus for cleaning a bore hole |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
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US1741497A (en) * | 1925-09-09 | 1929-12-31 | Fred S Boltz | Earth-drilling apparatus |
US2890022A (en) * | 1957-09-03 | 1959-06-09 | Jr Lothrop L Brown | Replaceable drill bit |
GB998403A (en) * | 1962-12-06 | 1965-07-14 | Hill Henry Rowland | Improvements relating to core borehole drilling |
US4176985A (en) * | 1975-07-14 | 1979-12-04 | Reading And Bates Construction Co. | System and method for installing production casings |
US4221503A (en) * | 1977-12-15 | 1980-09-09 | Cherrington Martin D | Drilling method and apparatus for large diameter pipe |
US4319648A (en) | 1979-09-24 | 1982-03-16 | Reading & Bates Construction Co. | Process for drilling underground arcuate paths and installing production casings, conduits, or flow pipes therein |
SU1481394A1 (ru) * | 1987-02-12 | 1989-05-23 | Центральный научно-исследовательский и проектно-конструкторский институт профилактики пневмокониозов и техники безопасности | Устройство дл отвода продуктов разрушени породы при бурении |
US5096002A (en) | 1990-07-26 | 1992-03-17 | Cherrington Corporation | Method and apparatus for enlarging an underground path |
US5209605A (en) | 1991-11-08 | 1993-05-11 | Evi Cherrington Enviromental, Inc. | Gravel-packed pipeline and method and apparatus for installation thereof |
DE4240297C2 (de) * | 1992-12-01 | 1995-01-19 | Putzmeister Maschf | Schildvortriebsmaschine mit einer Dickstoffkolbenpumpenfördereinrichtung |
US5375669A (en) * | 1993-02-12 | 1994-12-27 | Cherrington Corporation | Method and apparatus for cleaning a borehole |
DE19610238C2 (de) * | 1996-03-15 | 1998-08-20 | Tracto Technik | Vorrichtung zur Querschnittsvergrößerung einer Pilotbohrung |
UA44828C2 (uk) * | 1998-08-04 | 2002-03-15 | Відкрите Акціонерне Товариство "Спеціальне Проектно-Конструкторське Та Технологічне Бюро По Заглибному Електроустаткуванню Для Буріння Свердловин Та Добування Нафти "Потенціал" | Буровий пристрій для розширення свердловини |
AU3974400A (en) * | 1999-03-30 | 2000-10-16 | French Oilfield Services Limited | Method and apparatus for cleaning boreholes |
US6942038B2 (en) | 2003-06-23 | 2005-09-13 | David Fonseca | Mud diverter and method for horizontal drilling |
WO2005056971A1 (en) * | 2003-12-11 | 2005-06-23 | Roth Raymond G | Method and apparatus for directional drilling |
US7051821B2 (en) * | 2003-12-18 | 2006-05-30 | Halliburton | Adjustable hole cleaning device |
GB2496907B (en) * | 2011-11-28 | 2013-10-23 | Innova Drilling And Intervention Ltd | Improved wireline drilling system |
EP2740882B1 (de) * | 2012-12-04 | 2016-09-21 | BAUER Maschinen GmbH | Bohrvorrichtung und Verfahren zum Erstellen eines Bohrloches |
-
2013
- 2013-01-18 DE DE102013000771.2A patent/DE102013000771A1/de not_active Withdrawn
- 2013-11-28 AU AU2013373842A patent/AU2013373842B2/en active Active
- 2013-11-28 EP EP13802242.1A patent/EP2946061B1/de active Active
- 2013-11-28 RU RU2015134399A patent/RU2637685C2/ru active
- 2013-11-28 WO PCT/EP2013/003594 patent/WO2014111104A2/de active Application Filing
- 2013-11-28 US US14/651,170 patent/US10081992B2/en active Active
- 2013-11-28 CA CA2897547A patent/CA2897547C/en active Active
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5269384A (en) | 1991-11-08 | 1993-12-14 | Cherrington Corporation | Method and apparatus for cleaning a bore hole |
Also Published As
Publication number | Publication date |
---|---|
AU2013373842A1 (en) | 2015-08-06 |
CA2897547A1 (en) | 2014-07-24 |
US10081992B2 (en) | 2018-09-25 |
WO2014111104A3 (de) | 2015-05-28 |
EP2946061A2 (de) | 2015-11-25 |
EP2946061B1 (de) | 2019-04-24 |
AU2013373842B2 (en) | 2016-11-24 |
DE102013000771A1 (de) | 2014-07-24 |
CA2897547C (en) | 2017-08-29 |
US20160002990A1 (en) | 2016-01-07 |
RU2015134399A (ru) | 2017-02-28 |
RU2637685C2 (ru) | 2017-12-06 |
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