WO2021228663A1 - Bohrgestängekupplung und verfahren zum betätigen der bohrgestängekupplung - Google Patents
Bohrgestängekupplung und verfahren zum betätigen der bohrgestängekupplung Download PDFInfo
- Publication number
- WO2021228663A1 WO2021228663A1 PCT/EP2021/061895 EP2021061895W WO2021228663A1 WO 2021228663 A1 WO2021228663 A1 WO 2021228663A1 EP 2021061895 W EP2021061895 W EP 2021061895W WO 2021228663 A1 WO2021228663 A1 WO 2021228663A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- coupling
- locking bolt
- locking
- drill rod
- restoring
- 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.)
- Ceased
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
- E21B17/03—Couplings; joints between drilling rod or pipe and drill motor or surface drive, e.g. between drilling rod and hammer
-
- 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
- E21B17/046—Couplings; joints between rod or the like and bit or between rod and rod or the like with ribs, pins, or jaws, and complementary grooves or the like, e.g. bayonet catches
- E21B17/0465—Couplings; joints between rod or the like and bit or between rod and rod or the like with ribs, pins, or jaws, and complementary grooves or the like, e.g. bayonet catches characterised by radially inserted locking elements
Definitions
- the invention relates to a drill pipe coupling with a sleeve-shaped receptacle, a pin-shaped coupling member which can be axially inserted into the coupling receptacle to form a non-rotatable connection and at least one locking bolt which is directed transversely to the axial coupling direction and is in a locked coupling position between the coupling receptacle and the Coupling member extends into a locking recess, wherein the locking bolt is mounted radially adjustable between an unlocking position and a locking position, according to the preamble of claim 1.
- the invention further relates to a method for actuating this drill pipe coupling according to claim 15.
- Such a drill rod coupling is known, for example, from DE 10 2011 109 001 A1.
- This drill pipe coupling is often referred to as a so-called Kelly box.
- an axial locking is effected in that a transversely directed locking bolt is inserted into the coupling receptacle and the coupling member, so that a positive connection is achieved.
- the known drill pipe coupling requires manual activities by operating personnel both when locking and when unlocking. These are fundamentally time-consuming.
- the coupling arrangements can be located several meters above the ground. Climbing aids or even lifting vehicles are therefore required to be activated, which is also necessary is expensive.
- work at greater heights above the ground and also in the immediate area of action of a drill pipe is problematic for reasons of occupational safety and should therefore be reduced to a required minimum.
- the invention is based on the object of specifying a drill pipe coupling and a method for this, with which a particularly efficient coupling of a drill pipe is made possible.
- the drill pipe coupling according to the invention is characterized in that a tensioning device is provided with which the locking bolt is pressed into its locking position with a predetermined tensioning force, and that the locking bolt is connected to a restoring member, through which the locking bolt is in the unlocking position when a restoring force is applied is resettable.
- a basic idea of the invention can be seen in providing an at least semi-automatic drill rod coupling in which the at least one locking bolt is always reliably in the locking position.
- a tensioning device preferably a tensioning spring
- Unlocking can then take place via a restoring member, which is operated manually or powered by power in order to move the at least one locking bolt into its retracted unlocking position or release position.
- the inventive arrangement a fail-safe operation is achieved in wel chem a locking is ensured even in the event of a failure of electrical energy or hydrau likenergie on a drilling device.
- To actuate the locking bolt only one direction of force application is required, namely when the coupling is to be unlocked.
- the clamping device locks directly when the respective restoring force is no longer applicable.
- a preferred embodiment of the invention consists in that the locking bolt is mounted in a housing and that the restoring member protrudes from the housing and can be actuated mechanically.
- the at least one housing for the at least one locking bolt is preferably attached to an outer side of the sleeve-shaped coupling receptacle. As a result, the drill pipe coupling can be operated from the outside in a simple manner.
- the locking recess is located on the inner coupling member.
- the locking bolt is rotatably mounted around its Bol zenachse in the housing, that the restoring member extends transversely to the Bol zenachse and is designed as a lever for rotating the locking bolt and that a link mechanism is provided between the locking bolt and the housing is through which a rotational movement of the locking bolt can be converted into a movement radially to the drill rod axis.
- the locking bolt is formed cylindrically and inserted into a tubular housing and rotatably ge superimposed therein.
- Connected to the locking bolt is a preferably lever-like restoring member which protrudes outwardly with respect to the housing.
- an axially directed force can be applied in a simple manner to the lever-like restoring member, which force is converted into a rotary movement of the locking bolt by the restoring member.
- This rotary movement can be converted into a radial adjusting movement for unlocking the locking bolt via a link mechanism.
- the link mechanism has an at least partially screw-shaped groove as a link, in which a cam engages.
- the groove-shaped link is preferably formed at least on the inside of the housing, with in particular a pin-shaped cam, which is arranged on the locking bolt, engages in the helical link.
- the screw-shaped groove can also be formed on the outside of the locking bolt, while a corresponding pin-shaped cam is attached to an inner wall of the housing.
- the restoring member is provided with a wedge slide mechanism through which an axial movement can be converted into a radial movement of the locking bolt.
- the wedge slide mechanism can in principle be designed in any way in order to effect a movement conversion by 90 °.
- the wedge slide mechanism can in particular be arranged on the outside of the coupling device or within the zap feniform coupling member. By arranging at least one actuating surface inclined to the drill pipe axis, the desired conversion of the direction of a movement can be effected.
- a particularly low-wear embodiment of an embodiment of the invention is achieved in that a contact element is arranged at a free end of the restoring member, which is provided with a rounded contact surface.
- a rounded contact surface which preferably comes into contact with a straight counter surface, can reduce friction.
- the rounded contact surface can preferably also be a rotatable element, such as a rotatable cam.
- the drill pipe coupling can be operated directly by hand by an operator.
- an actuator in particular a linear drive
- the linear drive can in particular be a hydraulic or pneumatic actuating cylinder or an electrically operated spindle drive.
- a common actuator or a separate actuator can be arranged for each locking bolt.
- the actuator is preferably wired or wirelessly controllable, so that it can be operated in a simple manner by a machine operator, in particular from the machine cabin.
- a particularly compact design is achieved in that the at least one locking bolt with the tensioning device is mounted in the pin-shaped coupling member.
- the pin-shaped coupling member is hollow or designed with a receiving space for the at least one locking bolt and the tensioning device. In this arrangement, the locking recess is then arranged in a corresponding manner on the sleeve-shaped coupling.
- two locking bolts are mounted opposite one another in the coupling member and that the tensioning device is arranged in the coupling member in an axially directed manner.
- This arrangement can in particular be combined with a wedge slide mechanism, the tensioning device and possibly a linear actuator being aligned along and preferably coaxially to the drill rod axis.
- transverse forces can be compensated for by two, preferably radially opposite, locking bolts, so that a particularly stable arrangement is achieved.
- the clamping device has a spring-loaded pusher with a pressing surface inclined to the drill rod axis and that the locking bolts have inclined actuating surfaces at their inner ends, which rest on the pressing surfaces of the pusher.
- a wedge slide mechanism is achieved through which two or more radially directed locking bolts can be simultaneously pushed outwards and held there.
- a linear drive can actuate the same or an opposite pusher in order to retract the locking bolts into their unlocking position.
- the restoring member is a displaceable axial piston of the actuator.
- the restoring element can be part of the actuator directly or can be moved by the actuator.
- the bolt bolt has a bevel on its free front side, so that the locking bolt can be pushed into its unlocking position when the coupling receptacle and coupling member are axially coupled.
- the bevel on the front of the Riegelbol zen serves to convert the axial relative movement between the coupling member and the coupling receptacle into a radial return movement of the locking bolt.
- the locking bolt has a base body with a pawl displaceably mounted thereon, on the free front side of which the bevel is formed, and that a spring element is arranged between the base body and the pawl, so that the pawl of the locking bolt in a axial coupling of the coupling receptacle and coupling member can be pressed radially into the unlocking position.
- the spring element can be designed with a lower clamping force than the clamping device, so that easy locking is made possible during an insertion process. To unlock, the locking bolt must be retracted as a whole with the base body and the pawl against the action of the clamping device.
- a further advantageous embodiment of the invention consists in that at least one unlocking spring is provided, by means of which the at least one locking pin can be reset from its locking position into the unlocking position.
- the at least one unlocking spring can be tensioned, so that after locking by the tensioning device, a simple unlocking can also take place again by the at least one unlocking spring.
- a corresponding release device can be provided, which can be operated manually or remotely.
- the invention further relates to a drilling device with a drill drive for driving a drill rod with a drilling tool and a turntable, with a drill rod coupling according to the invention being provided and the return Actuator of the drill pipe coupling can be actuated by the turntable.
- the drill rod coupling does not have to be arranged on the drill drive. Rather, the drill pipe coupling is arranged between the individual drill pipe elements or between a drill pipe element and the drilling tool.
- the invention is characterized in that the locking bolt is pressed into its locking position by the tensioning device with a predetermined tensioning force and that when a restoring force is applied to the restoring member, the locking bolt is returned to the unlocking position in which the pin-shaped coupling member is relative to the sleeve-shaped coupling acquisition can be moved axially.
- the method is carried out with the previously described drill pipe coupling according to the invention.
- the method can be used to efficiently build a drill string from a multiplicity of drill string elements, a drill string coupling being arranged between each drill string element.
- a drilling tool can also be efficiently attached and detached from the lower end of a drill string.
- Fig. 1 is a perspective view of a sleeve-shaped coupling receiving a first drill pipe coupling according to the invention
- FIG. 2 shows a cross-sectional view of the coupling receptacle from FIG. 1 with a coupling member to be introduced
- FIG. 3 shows a cross-sectional view of the drill pipe coupling during insertion of the coupling member
- FIGS. 1 to 3 shows a cross-sectional view of the drill pipe coupling from FIGS. 1 to 3 with the coupling member locked;
- Fig. 5 is a partial cross-sectional view through a drilling device with the verrie apply drill rod coupling according to FIG. 4;
- FIG. 6 shows a cross-sectional view of the drilling device according to FIG. 5 when the drill rod coupling is released
- FIG. 7 shows the drilling device of FIGS. 5 and 6 with the coupling member unlocked
- Fig. 8 is a cross-sectional view of the drill pipe coupling according to Figures 5 to 7 when pulling out the unlocked coupling member from the coupling receptacle;
- FIG. 9 is a perspective view of a further drill rod coupling according to the invention.
- FIG. 10 shows a cross-sectional view of the drill pipe coupling from FIG. 9 with Rie yellow bolts in the locking position
- FIG. 11 is a cross-sectional view corresponding to FIG. 10 of the Bohrgestfitekupp treatment with locking bolt in the unlocked position;
- FIGS. 9 to 11 shows a partial side view of a drilling device with the drill rod coupling according to FIGS. 9 to 11 before unlocking;
- FIG. 13 shows a partial side view of a drilling device according to FIG. 12 when it is unlocked
- FIG. 14 shows a perspective view of a coupling member of a further drill pipe coupling according to the invention.
- Fig. 15 is a cross-sectional view of the coupling member of Fig. 14; 16 shows a cross-sectional view of the drill rod link of FIGS. 14 and 15 with retracted locking bolts.
- FIGS. 17 to 22 cross-sectional views of the drill rod coupling according to FIGS. 17 to 22 when tensioning an unlocking spring.
- a sleeve-shaped coupling receptacle 20 of a first drilling rod coupling 10 according to the invention is shown.
- the sleeve-shaped coupling receptacle 20 is designed corresponding to a so-called Kelly box cuboid with an upper insertion opening 22 and side openings 26 for the passage of a locking bolt.
- an annular connection area 24 is provided, which is firmly connected to a drilling tool, not shown.
- cylindrical housings 60 On two opposite side walls of the coupling receptacle 20 cylindrical housings 60 are attached, in which, as is clearly shown in Fig. 2, locking bolts 70 are mounted so as to be radially displaceable.
- a lever-like restoring member 80 is attached to each locking bolt 70 at its outer end, which extends in the radial direction to a drill rod longitudinal axis.
- a circular disk-shaped contact element 82 with a ge rounded contact surface 84 is arranged at the outer end of the restoring member 80.
- the restoring member 80 can be turned from the dargestell th vertically oriented position by about 90 ° into a horizontal position, the locking bolt 70 in the housing 60 is rotated accordingly.
- a partially screw-shaped groove 66 is made in the housing 60, into which a pin-shaped cam 72 protrudes, which is firmly connected to the bolt 70.
- a link mechanism 64 is formed overall, which converts a Drehbewe movement of the restoring member 80 into a radial linear movement of the locking bolt 70.
- the locking bolt 70 can thereby be released from its locking position shown in FIG.
- a Spanneinrich device 40 is arranged within the housing 60, which is formed by an arrangement of disc springs 41 in the present embodiment.
- the tensioning device 40 is supported on the one hand on a housing cover 62 of the housing 60 and on the other hand on an annular shoulder 76 of the locking bolt 70.
- a base body 78 of the locking bolt 70 is pressed into a locking position.
- a pawl 71 is mounted displaceably bar, which is pressed by a spring element 45 radially inward into the locking position, which is shown in FIG.
- the pawl 71 On its front side, the pawl 71 has an actuating surface 73 which is beveled towards the insertion opening 22.
- an angular coupling member 50 which is attached to the lower end of a drill rod element 3, not shown, z. B. a so-called. Kelly bar is attached, with a transverse locking recess 74 for Schlie Shen of the drill pipe coupling 10 are inserted.
- a chamfer at the front end of the coupling member 50 comes into contact with the beveled actuating surface 73 on the pawls 71 of the opposite locking bolt 70.
- the action of the respective spring elements 45 enables the pawls 71 to return to their locking position. Management position are pressed, wherein the pawls 71 protrude into the recess 74 locking.
- the pin-shaped coupling member 50 is positively locked in the sleeve-shaped coupling receptacle 20 ver.
- both a torque and axial forces between the pin-shaped coupling member 50 and the sleeve-shaped coupling receptacle 20 can thus be transmitted via the drill pipe coupling 10.
- the pin-shaped coupling receptacle 50 is preferably attached to a lower end of a drill pipe element.
- the unlocking of the drill pipe coupling 10 can be done by a drilling device 2 with a so-called turntable 4 only partially presented Darge.
- the turntable 4 is a generally known sleeve-shaped drive part, which can be provided on the drilling device 2 for rotating so-called support tubes for a verrohr th drilling.
- one or more actuating plates 6 are axially adjustable net angeord within a derar term turntable 4. Axial adjustment can take place by means of a linear drive, which is not shown here.
- the dargestell th two actuating plates 6 relative to the restoring members 80 on the drill rod coupling 10 can be shifted downward, as indicated in FIG.
- the actuating plates 6 come into contact with the contact elements 82 at the free end of the lever-like return spring 80, with the return elements 80 being turned from their vertical position into an approximately horizontal position by approx. 90 ° due to the rounded contact surface 84, as illustrated in FIG 7 to know.
- the respective locking bolt 70 including its pawl 71 can be withdrawn radially from the locking position in the locking recess 74 of the pin-shaped coupling member 50 into an unlocking position through this rotating or flipping movement of the restoring members 80.
- the pawls 71 of the locking bolts 70 leave the transversely directed locking recess 74, so that the pin-shaped coupling member 50 can be axially pulled out of the sleeve-shaped coupling receiving 20, as is clearly shown in FIG.
- the peg-shaped coupling member 50 corresponds to the coupling member 50 described above.
- the coupling receptacle 20 is also designed essentially in accordance with the coupling receptacle 20 described above.
- the housing 60 with the locking bolt 70 and the restoring member 80 are formed in a different configuration.
- the restoring member 80 is designed as an exclusively axially adjustable flebel with a Ku lissen fork 86.
- the restoring member 80 is mounted axially displaceably between an upper position, which is shown in FIGS. 9 and 10, and a lower position according to FIG. In the upper position, the restoring member 80 is not in direct operative connection with the locking bolt 70 in the housing 60, so that the locking bolt 70 is pressed into its inwardly projecting locking position by a tensioning device 40 formed by springs, as illustrated in FIG. 10 emerges.
- the locking bolt 70 is retracted radially into the unlocking position by the link fork 86 with a stepped actuation surface corresponding to a link mechanism not shown in detail, which is shown in FIG. 11 is shown.
- a return spring 88 After the axial compressive force on the restoring members 80 has ceased to exist, they are pushed back into their upper position by a return spring 88.
- the clamping device 40 moves the locking bolts 70 back into the locking position.
- other scenery measures can also be used.
- mechanisms are provided which convert an axial actuation movement on the restoring members 80 into a radial retraction movement of the locking bolts 70.
- FIGS. 12 and 13 a drilling device 2 is shown with which the drill rod coupling 10 according to FIGS. 9 to 11 can be actuated.
- a box drill bit which is only partially shown, is detachably attached to a drill pipe element 3 as a drilling tool 8 by means of the drill pipe coupling 10.
- the drill rod element 3 protrudes through a rotary drive 9, also called a power rotary head.
- a rotary drive 9 On the rotary drive 9, an opening plate 5 is arranged, which is axially spaced from the restoring members 80 in FIG.
- FIGS. 14 to 16 Another drill rod coupling 10 according to the invention is explained in connection with FIGS. 14 to 16.
- the locking bolts 70 are housed in the pin-shaped coupling member 50.
- the pin-shaped coupling member 50 has in the illustrated embodiment shown in FIG. 14 an adapter sleeve 56 accordingly a Kelly box, so that the pin-shaped coupling member 50 can be attached to a conventional drill rod element with a square connector.
- a circular disk-shaped stop plate 58 can be arranged, through which a defined axial position is achieved when inserted into a sleeve-shaped coupling receptacle.
- the sleeve-shaped coupling socket can be designed in accordance with a conventional Kelly box.
- the pin-shaped coupling member 50 can also be attached directly to a drill pipe element 3, e.g. B. a so-called. Kelly bar, be attached.
- the coupling member 50 has an inner hollow space in which a tensioning device 40, which is formed by a spring, is arranged.
- the clamping device 40 is supported down on a Bo denplatte 52 of the coupling member 50 and up on a shoulder of a conical pusher 42 from.
- the conical pusher 42 is pushed up into an upper position.
- On the conical surface of the pusher 42 are two opposing locking bolts 70 with obliquely directed pressing surfaces 43 on the conical surface of the pusher 43.
- the locking bolts 70 can be slidably coupled to the conical pusher 42 via tongue and groove connections (not shown in detail).
- the locking bolts 70 are pressed radially outward into their locking position by the clamping device 40.
- an overhead linear drive as an actuator 46 with an extendable Axialkol ben 48 is arranged.
- the actuator 46 can in particular be a hydraulic cylinder.
- the axial piston 48 can be driven down by the actuator 46, the pusher 42 being pressed downward by the axial piston 48 against the action of the clamping device 40.
- the locking bolts 70 held on the pusher 42 are retracted radially into their unlocking position in which they are located within the pin-shaped coupling member 50, as is clearly shown in FIG. 16.
- the actuator 46 moves back, the axial piston 48 is pushed up again by the pusher 42 and the clamping device 40.
- the locking bolts 70 are moved radially outward again into their locking position, so that fail-safe operation is ensured even if the linear drive 46 fails in the locking position, that is to say in the operating position.
- FIGS. Similar to the previous exemplary embodiment according to FIGS. 14 to 19, two transversely directed locking bolts 70 are slidably mounted in a coupling member 50.
- the clutch Member 50 has a central longitudinal channel 51, in which a push rod 90 is arranged as a restoring element 80, which is connected in an articulated manner to the two locking bolts 70 via articulation levers 92.
- a tensioning device 40 designed as a helical spring is arranged within the longitudinal channel 51, which is supported on its upper side on a support disk 54 in the longitudinal channel 51.
- the support disk 54 is in principle slidably mounted in the longitudinal channel 51, the support disk 54 having a side recess 55 on its outside.
- a transversely directed locking bolt 59 engages in this side recess 55, which is mounted on the coupling member 50 in an adjustable manner. In the Arretierpo position shown in Fig. 17, the locking bolt 59 engages in the side recess 55, wherein the support disc 54 is fixed in position.
- clamping device 40 is supported downward on a first radial shoulder 94, which is firmly formed on the push rod 90.
- the locking bolts 70 Due to the inclined surfaces on the locking bolt 70 and the insertion opening 22 of the coupling receptacle 20, the locking bolts 70 are moved radially inward into the coupling member 50 when the coupling member 50 is axially inserted, as is clearly shown in FIG.
- the connecting lever 92 moves the push rod 90 with the first radial shoulder 94 upwards.
- the helical spring of the tensioning device 40 is compressed and tensioned.
- an unlocking spring 100 which is supported on the one hand on an annular shoulder 53 on the longitudinal channel 51 and on the other hand on a drive plate 96 on the push rod 90 and is in a tensioned state according to FIGS Trigger movement of the push rod 90 downwards.
- the unlocking spring 100 presses the drive plate 96 on the push rod 90 downwards, as is clearly shown in FIG. With the push rod 90 attached to it clamping device 40 is moved with the support disc 54 downwards.
- the unlocking spring 100 is to be returned from its relaxed position according to FIGS. 22 and 23 to its tensioned operating state.
- the actuating rod 70 which protrudes axially from the coupling member 50 in the relaxed state of the unlocking spring 100, is pushed back into the coupling member 50 again.
- This can be done, for example, in that the coupling member 50 with the protruding push rod 90 is placed on the outer edge of the coupling receptacle 20 and the push rod 90 is pressed back into the coupling member 50, as clearly shown in FIGS. 24 and 25.
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- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
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- Earth Drilling (AREA)
Abstract
Description
Claims
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP21723731.2A EP4127382A1 (de) | 2020-05-12 | 2021-05-05 | Bohrgestängekupplung und verfahren zum betätigen der bohrgestängekupplung |
| CA3178429A CA3178429A1 (en) | 2020-05-12 | 2021-05-05 | Drill rod coupling and method for actuating the drill rod coupling |
| AU2021270768A AU2021270768B2 (en) | 2020-05-12 | 2021-05-05 | Drill rod coupling and method for actuating the drill rod coupling |
| US17/998,458 US11913289B2 (en) | 2020-05-12 | 2021-05-05 | Drill rod coupling and method for actuating the drill rod coupling |
| CN202180034854.XA CN115461524B (zh) | 2020-05-12 | 2021-05-05 | 钻杆接合器和用于操纵钻杆接合器的方法 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP20174084.2A EP3910160B1 (de) | 2020-05-12 | 2020-05-12 | Bohrgestängekupplung und verfahren zum betätigen der bohrgestängekupplung |
| EP20174084.2 | 2020-05-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2021228663A1 true WO2021228663A1 (de) | 2021-11-18 |
Family
ID=70681755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2021/061895 Ceased WO2021228663A1 (de) | 2020-05-12 | 2021-05-05 | Bohrgestängekupplung und verfahren zum betätigen der bohrgestängekupplung |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US11913289B2 (de) |
| EP (2) | EP3910160B1 (de) |
| CN (1) | CN115461524B (de) |
| AU (1) | AU2021270768B2 (de) |
| CA (1) | CA3178429A1 (de) |
| WO (1) | WO2021228663A1 (de) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022175835A1 (en) * | 2021-02-17 | 2022-08-25 | Auris Health, Inc. | Instrument roll control |
| BE1031890B1 (nl) | 2023-08-10 | 2025-03-10 | Olivier | Bevestigingssysteem voor het onderling losmaakbaar koppelen van buiseinden voor het vormen van funderingspalen |
| US20250290264A1 (en) * | 2024-03-12 | 2025-09-18 | Ojjo, Inc. | Locking release mechanisms for rotary drivers and related systems |
| CN118564192B (zh) * | 2024-07-31 | 2024-09-27 | 贵州开源爆破工程有限公司 | 一种潜孔钻机用钻杆连接装置 |
| CN121088286B (zh) * | 2025-11-10 | 2026-02-13 | 四川建筑职业技术学院 | 一种反井钻机扩孔力矩自适应传动机构 |
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| ITMI20122264A1 (it) * | 2012-12-28 | 2014-06-29 | Soilmec Spa | Dispositivo pulitore elica per rimuovere detriti da un utensile di scavo a vite, macchina di scavo provvista di tale dispositivo pulitore e uso di tale macchina di scavo |
| US10251725B2 (en) * | 2014-06-09 | 2019-04-09 | Covidien Lp | Authentication and information system for reusable surgical instruments |
| CN104047551B (zh) * | 2014-06-30 | 2017-02-22 | 江苏信得石油机械股份有限公司 | 一种新型法兰快速锁紧装置 |
| CN209228316U (zh) * | 2018-11-26 | 2019-08-09 | 广西中煤地质有限责任公司 | 一种水文孔用钻探装置 |
| US11162339B2 (en) * | 2020-03-03 | 2021-11-02 | Saudi Arabian Oil Company | Quick connect system for downhole ESP components |
-
2020
- 2020-05-12 EP EP20174084.2A patent/EP3910160B1/de active Active
-
2021
- 2021-05-05 US US17/998,458 patent/US11913289B2/en active Active
- 2021-05-05 AU AU2021270768A patent/AU2021270768B2/en active Active
- 2021-05-05 CA CA3178429A patent/CA3178429A1/en active Pending
- 2021-05-05 EP EP21723731.2A patent/EP4127382A1/de not_active Withdrawn
- 2021-05-05 CN CN202180034854.XA patent/CN115461524B/zh active Active
- 2021-05-05 WO PCT/EP2021/061895 patent/WO2021228663A1/de not_active Ceased
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10023467C1 (de) * | 2000-05-12 | 2001-09-27 | Bauer Spezialtiefbau | Bohrvorrichtung |
| DE202005020729U1 (de) * | 2004-07-17 | 2006-06-14 | Abf-Bohrtechnik Gmbh & Co. Kg | Aufnahme für rohrförmiges Bohrwerkzeug |
| DE102006022613A1 (de) * | 2006-05-15 | 2007-11-22 | Klemm Bohrtechnik Zweigniederlassung Der Bauer Maschinen Gmbh | Bohrantriebseinheit, Bohrgestängeelement und Bohrverfahren |
| DE102011109001A1 (de) | 2011-07-29 | 2013-01-31 | Abf-Bohrtechnik Gmbh & Co. Kg | Bohrgerät mit Kelly-Stange und äußere Werkzeugschnellbefestigung |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115461524A (zh) | 2022-12-09 |
| EP3910160B1 (de) | 2023-11-15 |
| EP4127382A1 (de) | 2023-02-08 |
| US11913289B2 (en) | 2024-02-27 |
| US20230193698A1 (en) | 2023-06-22 |
| EP3910160A1 (de) | 2021-11-17 |
| CN115461524B (zh) | 2025-11-21 |
| CA3178429A1 (en) | 2021-11-18 |
| EP3910160C0 (de) | 2023-11-15 |
| AU2021270768B2 (en) | 2024-02-15 |
| AU2021270768A1 (en) | 2023-01-05 |
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