EP3647531A1 - Accouplement de tiges d'une tige de tarière - Google Patents

Accouplement de tiges d'une tige de tarière Download PDF

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Publication number
EP3647531A1
EP3647531A1 EP19198554.8A EP19198554A EP3647531A1 EP 3647531 A1 EP3647531 A1 EP 3647531A1 EP 19198554 A EP19198554 A EP 19198554A EP 3647531 A1 EP3647531 A1 EP 3647531A1
Authority
EP
European Patent Office
Prior art keywords
section
rod
plug
drive element
sections
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Withdrawn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
EP19198554.8A
Other languages
German (de)
English (en)
Inventor
Tobias Klein
Dieter Wurm
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.)
Tracto Technik GmbH and Co KG
Original Assignee
Tracto Technik GmbH and Co KG
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 Tracto Technik GmbH and Co KG filed Critical Tracto Technik GmbH and Co KG
Publication of EP3647531A1 publication Critical patent/EP3647531A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • 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
    • 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
    • E21B17/028—Electrical or electro-magnetic connections
    • 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

Definitions

  • the invention relates to a rod section of an earth drill rod, a drive element for driving an earth drill rod into the ground, a rod socket system and an earth drilling device.
  • a drill head In rod-based drilling in the ground, in particular for the production of so-called horizontal bores, which can run essentially parallel or at a relatively small angle to the surface of the earth, a drill head is driven by means of a drill rod from a drive device arranged on the surface of the earth or in an excavation pit.
  • the drill rods used here usually consist of individual interconnected rod sections, which - according to the drilling process - are gradually attached to the rear end of the drill rod already drilled and connected to it.
  • the rod sections can be connected by means of a threaded connection and / or a plug connection.
  • the object of the invention was to provide an improved plug-in connection for a drill pipe, in particular a drill pipe section, which in particular is of a simpler design.
  • a drive element which is designed to drive an earth drill pipe into the ground and to engage it with a rod section, is the subject of the independent patent claim 7.
  • a rod section system and an earth drilling device are the subject of patent claims 14 and 15, respectively.
  • Advantageous embodiments of the rod section, the drive element, of Linkage shot systems and the earth boring device are the subject of the respective dependent claims and / or result from the following description of the invention.
  • the invention is based on the idea of specifying a possibility for connecting two drill pipe sections of a drill pipe and / or a drill pipe section with a drive element and / or a further element of the drill pipe, which is based on non-circular sections of a cross section that is continuous.
  • the invention provides a rod section of an earth drill rod, the rod section being configured at the end to form a plug connection and having (a) a connecting plug or (b) a connecting socket at one end.
  • the connector has an outside or the connector has non-circular sections on the inside along a cross section. The cross section is continuous.
  • rod section in the sense of the invention comprises an element which extends along a longitudinal axis and which can be part of an earth drill rod or a drill string for the ground.
  • the rod section can be designed as an element with an assigned function (transmitter housing, drilling tool or the like) arranged on the front side in the drill string or as an element that merely extends the drill string as a "normal" rod section.
  • the rod section can comprise mechanical channels, for example for drilling fluid, electrical lines, electrical elements and / or electronic elements.
  • the rod section can have a special function in the earth drill rod, for example it can be designed as a transmitter housing.
  • a rod section can have a first end with a connection plug or a connection socket described.
  • the rod section may further have a second end spaced from the first end, which usually has the other element of the pair of the plug connection.
  • the boom section may further have a center line extending from the first end to the second end.
  • the cross section of the connecting plug or the connecting socket under consideration can in particular be a cross section perpendicular to the center line of the rod section.
  • the boom section can be, in particular, a double pipe boom section, in which both a so-called inner linkage and a so-called outer linkage are present.
  • a drill head can additionally be driven in a rotating manner via the inner rod arrangement by the drive device arranged on the surface of the earth or in an excavation pit, which also ensures the propulsion of the drill head.
  • the inner linkage can be rotatably mounted within the outer linkage of the double tube linkage.
  • the outer linkage either does not have to be rotated at all or only at a low speed. The rotation of the outer linkage and inner linkage can be carried out independently of one another.
  • a double pipe rod is particularly suitable for a rock drilling device, whereby the wear of the drill rod is limited, because the outer rod in contact with the rocky hole wall can be driven along the rocky hole wall without rotation or only at low speed, while at a higher speed driven inner linkage can be stored in the outer linkage to reduce wear.
  • the formation of non-circular sections can be provided in particular for the connection of the inner rod sections. Non-circular sections can also be provided for connecting the outer rod sections; however, it is also possible that a different type of connection is chosen for the outer rod sections.
  • earth drilling tool encompasses a drilling head arranged at the front end of the earth drilling rod or drill string, in which movable parts can be provided. However, it can also be provided that the earth drilling tool has an immovable or rigid or largely immovable or rigid outer contour.
  • earth drilling device includes any device which, in particular, moves a rod consisting of rod sections in an existing or to be created channel in the ground, in order to create or expand a hole, in particular a horizontal hole, or to conduct lines or other long pipes Body into the ground.
  • An earth boring device can comprise a drive device pulling and / or pushing an earth drill pipe. It can additionally or alternatively be provided that the drive device drives the drill pipe in a rotary manner.
  • horizontal drilling in the sense of the present description includes in particular any type of existing or to be created, preferably horizontal, channels in a body, in particular earth channels including earth bores, rock holes or earth pipes as well as underground or above-ground pipelines and water channels that are Manufacture or pull in using an appropriate earth drilling device.
  • connecting plug and “connecting socket” encompass an embodiment as an element of a pair of mechanical coupling elements, of which one (“connecting plug”) can be at least partially inserted into the other (“connecting socket”) in order to Form connection.
  • non-circular section encompasses a section of line along a cross section with which three different points along the cross section are connected to one another, wherein three points in particular cannot be arranged along a straight line or a circular section.
  • the non-circular section can in particular be arcuate, which includes the configuration as an arbitrarily curved line other than a circular arc segment.
  • the non-circular section can be a curved line, the points of which have a different distance from any point in space, in particular a center.
  • the non-circular sections have sections, edges or sides that complement each other in such a way that a closed section can be formed as a cross section.
  • a non-circular cross section can be formed, which periodically deviates from a circle.
  • the term “continuous” includes a property of the cross section that the cross section essentially has no jumps, ie the change in the functional values describing the cross section can be limited as desired by focusing on sufficiently small changes in the argument, for example limited in polar angle.
  • the term “steady” refers to one Macroscopic view, where there may be slight discontinuities.
  • a positive connection can be formed, which can have mechanical advantages, for example a small number of shapes.
  • a connection can be created through which the highest torque can be transmitted in relation to the diameter under consideration.
  • the connection can be formed essentially without or with a reduced notch effect. It can be achieved that the two rod sections to be connected touch each other so that there can be a significantly reduced surface pressure.
  • non-circular sections having a cross section for the connecting plug and the connecting bush can lead to greater torque transferability without increasing the diameter of the rod section or the connecting plug involved and / or the connecting bush.
  • non-circular sections can be used which together have one or more sections which obey the same formula.
  • the cross section resulting from the non-circular sections can be a so-called polygon profile.
  • there may also be deviations in a polygon profile the effect according to the invention of reducing the surface pressure being able to be achieved, so that very slight deviations from a polygon profile are possible. Deviations can be formed by circular segments and / or straight segments.
  • the non-circular sections can each be optimized with regard to a flat contact between the connector plug and the connector socket.
  • various non-circular sections are formed, as a result of which, in particular in the case of the connecting socket, partial areas or sections can be formed which can be different from one another and / or can be different than the contour of the connecting plug.
  • the connecting socket can not only have a pure "enlargement" of the outer contour of the connecting plug, but in particular it can be designed not to be axisymmetric and / or not rotationally symmetrical to the center point.
  • two mutually different non-circular sections can be provided as a cross section of the connecting socket and / or the connecting plug.
  • the two mutually different sections can alternate along the circumference, so that sections are formed obey a predetermined function or formula mentioned above, and which are separated from other sections which obey another predetermined function or formula.
  • further sections it is also possible for further sections to be provided.
  • the provision of further sections is not excluded, since according to the embodiment at least one further section, which is not represented by the (first) function, is formed between two sections, which can be represented by the (first) function.
  • the section that cannot be represented by means of the first function can directly or indirectly connect to one of the other two sections.
  • the section that cannot be displayed using the first function can consist of circular segments or straight segments.
  • the non-circular sections extend over a length of 20 mm to 120 mm, in particular 30 mm to 110 mm, particularly preferably 40 mm to 100 mm, very particularly preferably 60 mm to 100 mm, in the longitudinal extension of the rod section .
  • an insertion section is formed on the non-circular sections on the input side, and is in particular formed on the end connector or connector.
  • the insertion section can first be passed through by the other element of the pair of plug connections in order to reach the region with the non-circular sections. This makes it possible to achieve a simplified insertion of the connection plug into the connection socket. A relative rotational movement between the connection socket and the connection plug is possible in the insertion section.
  • a plug connection is provided in the interior of the rod section, which is designed coaxially to the connecting socket or to the connecting plug for an electrical connection.
  • the configuration of the plug connection according to the invention makes it possible for the electrical plug connection to be closed in a positively guided manner when the mechanical connection is formed.
  • the electrical connection can also be closed without any movement other than to form the plug connection.
  • the invention also provides a drive element for driving an earth drill pipe into the ground.
  • the drive element is designed to engage with a rod section.
  • the drive element that comes into engagement with the rod section is (a) as a connector, the non-circular on the outside Has sections, or (b) designed as a connecting bush, which has non-circular sections on the inside, the cross section being continuous.
  • a drive element of a drive device can be used which is tailored to the special geometry of the rod sections, a high torque based on the diameter being able to be transmitted.
  • a flat contact of the drive element with the boom section can be achieved and thus a significantly reduced surface pressure.
  • drive element in the sense of the description includes an element of a drive device which provides for the advance of the earth drill pipe into the ground, the drive being able to be pulling or pushing, wherein the drive device can additionally be designed to drive the earth drill pipe in rotation.
  • the drive element can be an element arranged on a slide. The carriage can be moved back and forth in a frame, in particular parallel in the direction of the earth hole to be drilled.
  • non-circular sections are present.
  • non-circular sections that can be described using the same function can be provided between sections that can be described using a different function.
  • the connecting socket is not only designed as a pure "enlargement" of the outer contour of the connecting plug, but in particular is not designed to be axisymmetric and / or not rotationally symmetrical to the center point.
  • two mutually different non-circular sections of the cross-section of the connecting socket and / or the connecting plug can be provided.
  • the non-circular sections which differ from one another alternate along the circumference, as a result of which a simply constructed and structurally easy to handle cross section can be formed.
  • the non-circular sections extend over a length of 20 mm to 120 mm in the longitudinal extension of the drive element.
  • an insertion section is formed on the input side of the non-circular sections in order to simplify the connection of the drive element and the rod section.
  • the drive element can be moved relative to the rod section or the rod section relative to the drive element over a certain range in the insertion section.
  • a plug connection for an electrical connection with a rod section is provided in the interior of the drive element. This allows the drill string to be electrically connected by means of the drive element. An electrical connection does not have to be made outside the boom sections to make a connection.
  • the plug connection is aligned coaxially with the connecting socket or the connecting plug, as a result of which a simple configuration can be achieved.
  • a plug connection aligned coaxially to the connection socket or the connection plug can be rotationally variable, in particular if the connection socket and connection plug are formed essentially centrally with respect to the cross section of the rod section or drive element.
  • the construction of connection socket / connector with plug connection is simplified.
  • the plug connection can also be formed on the element provided for the mechanical connection.
  • the invention also provides a boom section system that includes two or more boom sections of the above configuration.
  • connection socket has a shape that differs from the connection plug.
  • the connecting socket can in particular not only be designed as a pure "enlargement" of the outer contour of the connecting plug, but in particular not be configured to be axially symmetrical and / or not rotationally symmetrical to the center point.
  • partial areas of the cross section can serve as non-circular sections for clockwise rotation as contact surfaces for corresponding contact surfaces of the connecting plug, and partial areas as non-circular sections for counterclockwise rotation can serve as contact surfaces for corresponding contact surfaces of the connecting plug.
  • the invention comprises an earth boring device which has a drive element of the above-described configuration.
  • Fig. 1 shows schematically in an isometric view a connector 1, as can be provided on the end of a rod section or a drive element.
  • the end of the rod section or the drive element is designed to form a plug connection.
  • the connector 1 is part of a pair, which is additionally formed by a connector 2, as described in more detail below.
  • a center line 3 extends from the illustrated first end of the rod section or drive element to a second end (not shown) of the rod section or drive element.
  • the connector 1 has non-circular sections 4 along a cross section 5 on the outside.
  • the non-circular sections 4 extend in the longitudinal axial direction along the center line 3 over a range of 85 mm.
  • the result is a cross section 5 arranged perpendicular to the center line 3, which essentially has three non-circular sections 4.
  • the Fig. 2 schematically shows the connector 1 from the side, insertion sections 6 being formed on the connector 1, which are arranged adjacent to the end of the rod section or the drive element in order to simplify the connection to a connector socket 2.
  • insertion sections 6 are formed on the connector 1, which are arranged adjacent to the end of the rod section or the drive element in order to simplify the connection to a connector socket 2.
  • the recesses of the insertion section 6 can cooperate as an insertion aid with an appropriately designed insertion section 6 on the connection socket 2 in order to enable the alignment between the connection plug 1 and the connection socket 2.
  • the rod section or the drive element also has an electrical contact in the form of an (electrical) connector 7, which is coaxial to the (mechanical) connector 1, is present.
  • the Fig. 4 shows an isometric schematic illustration of a connecting bush 2, as it can be present at one end of a rod section or a drive element.
  • the connecting socket 2 has an insertion section 6 which extends over a longitudinal axial area of 20 mm.
  • the Fig. 5 shows a view from the front of the connecting socket 2.
  • Non-circular sections 8 are provided to form an inside cross-section 9 of the connecting socket 2.
  • the connection socket 2 has an electrical connection socket 11 coaxially for an electrical connection.
  • Fig. 6 a sectional view is shown which results when the connector 1 is inserted into the connector 2. The cut is carried out essentially perpendicular to the center line 3.
  • the Fig. 6 shows that the connection socket 2 in the illustrated embodiment is not only an enlargement of the outer contour of the connection plug 1, but also contains other non-circular sections 10 which the connection plug 1 does not contain. While essentially three non-circular sections 4 are provided for the connecting plug 1, the connecting socket 2 contains two three non-circular sections 8, 10, three of which correspond to the three sections of the connecting plug 1, but not over the entire area, as in the case of the connecting plug 1, are trained.

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  • Engineering & Computer Science (AREA)
  • 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)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
EP19198554.8A 2018-10-31 2019-09-20 Accouplement de tiges d'une tige de tarière Withdrawn EP3647531A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102018008533.4A DE102018008533A1 (de) 2018-10-31 2018-10-31 Gestängeschuss eines Erdbohrgestänges

Publications (1)

Publication Number Publication Date
EP3647531A1 true EP3647531A1 (fr) 2020-05-06

Family

ID=67998266

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19198554.8A Withdrawn EP3647531A1 (fr) 2018-10-31 2019-09-20 Accouplement de tiges d'une tige de tarière

Country Status (3)

Country Link
US (1) US20200141191A1 (fr)
EP (1) EP3647531A1 (fr)
DE (1) DE102018008533A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4086426A1 (fr) * 2021-05-03 2022-11-09 TRACTO-TECHNIK GmbH & Co. KG Accouplement de tiges d'une tige de tarière

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2548637A1 (de) * 1975-03-03 1976-09-16 Carmet Co Verfahren und vorrichtung fuer bohrarbeiten im deckgebirge
DE20012524U1 (de) * 2000-07-20 2000-09-21 Tracto-Technik GmbH Spezialmaschinen, 57368 Lennestadt Gestängekupplung
DE102011010958A1 (de) 2011-02-10 2012-08-16 Tracto-Technik Gmbh & Co. Kg Steckverbindung und Gestängeschuss für Bohrgestänge
DE202014005296U1 (de) * 2014-04-25 2014-07-25 Tracto-Technik Gmbh & Co. Kg Gestängeschuss und Gestängeschusssystem

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1242052A (en) * 1967-05-25 1971-08-11 Wickman Wimet Ltd Percussive rock drilling apparatus
DE2401891A1 (de) * 1974-01-16 1975-07-24 Heller Geb Verbindung gesteinsbohrer-bohrmaschine
SE506207C2 (sv) * 1992-01-22 1997-11-24 Sandvik Ab Sänkborrmaskin

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2548637A1 (de) * 1975-03-03 1976-09-16 Carmet Co Verfahren und vorrichtung fuer bohrarbeiten im deckgebirge
DE20012524U1 (de) * 2000-07-20 2000-09-21 Tracto-Technik GmbH Spezialmaschinen, 57368 Lennestadt Gestängekupplung
DE102011010958A1 (de) 2011-02-10 2012-08-16 Tracto-Technik Gmbh & Co. Kg Steckverbindung und Gestängeschuss für Bohrgestänge
DE202014005296U1 (de) * 2014-04-25 2014-07-25 Tracto-Technik Gmbh & Co. Kg Gestängeschuss und Gestängeschusssystem

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4086426A1 (fr) * 2021-05-03 2022-11-09 TRACTO-TECHNIK GmbH & Co. KG Accouplement de tiges d'une tige de tarière
US11959340B2 (en) 2021-05-03 2024-04-16 Tracto-Technik Gmbh & Co. Kg Rod section of a ground drilling rod

Also Published As

Publication number Publication date
US20200141191A1 (en) 2020-05-07
DE102018008533A1 (de) 2020-04-30

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