• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    In a drill pipe, in particular for a drill string, having an outer and an inner pipe (3), a socket connector (4) with an internal thread at one end of the drill pipe (1) and a male connector (5) with an external thread at the end opposite the socket connector (4) , the inner tube (3) is arranged substantially concentrically in the outer tube (2) and the drill tube (1) has a central region (8) with an inner diameter. The outer tube (2) has a thickening of the wall thickness inwardly at a journal-side end region (7) with an inner diameter smaller than the inner diameter of the middle region (8), and the inner diameter of the outer tube (2) remains at a sleeve-side end region (6) relative to the inner diameter of the central region (8). essentially the same.
    公开号:AT514235A1
    申请号:T336/2013
    申请日:2013-04-22
    公开日:2014-11-15
    发明作者:Bouchra Dipl Ing Lamik-Thonhauser；Anton Dipl Ing Scheibelmasser；Anton Kotov；Alexander Fine；Manfred Gutschelhofer；Johann Jud；Florian Aichinger
    申请人:Advanced Drilling Solutions Gmbh；
    IPC主号:
    专利说明:

    4 ·········
    The invention relates to a drill pipe, in particular for a drill string, with an outer and an inner tube, a socket connector with an internal thread at one end of the drill pipe and a pin connector with an external thread on the opposite end of the sleeve connector, wherein the inner tube arranged substantially concentrically in the outer tube and wherein the drill pipe has a central region with an inner diameter.
    In modern drilling, for example, for petroleum, natural gas, or for the development of geothermal, there are three major efforts in the design of the drill strings, which are in conflict with each other. Thus, it is desirable to provide drill pipes with large internal diameters in order to achieve the lowest possible pressure loss for the drilling fluid (Mud). At the same time, in terms of safety and efficiency, it is important to be as precise as possible about the conditions at the end of the drill string. For this purpose, measuring devices and means for loss-free, ideally high-frequency. Transmission of the measured data as well as the lossless as possible loss of the measuring equipment with energy needed. The space required for the electronics and / or cabling is often at the expense of throughput. These two efforts are countered by the need for particularly safe and durable drill strings, because this need above all correspond to larger wall thicknesses.
    In order to meet the criteria of stability and throughput, in the prior art the areas of the drill string which are subjected to particular stresses, such as the sleeve and pin connectors to which individual drill pipes of the drill string are connected, and the junctions thereof to the central region of the drill pipes, designed more massive. For this purpose, the tubes have thickenings of the wall thicknesses inwards (internal upset) and / or outwards (external upset). These thickenings usually decrease evenly towards the central region of the drill pipe, in order to produce a To create a material-saving transition between the rather flexible central area and the stiff socket and tenon joints. However, this trade-off between throughput and stability does not take into account the need for as much information as possible about the condition of the well.
    The aim of the invention is therefore to provide a drill pipe 'to make available that minimizes pressure losses, is stable and thereby for the most lossless data and energy transfer
    This object is achieved by a drill pipe of the type mentioned above, which is characterized in that the outer tube at a pin end portion has a thickening of the wall thickness inwardly with respect to the inner diameter of the central region smaller inner diameter and that the inner diameter of the outer tube at a sleeve end portion remains substantially equal to the inner diameter of the central region.
    Thus, an inner tube: having on its outside a wiring and / or electronics, are introduced, whereby a protected area for the wiring and / or electronics is created. Usually drill pipes for drill strings are designed symmetrically. If a tube has a thickening of the wall thickness inward at one end, an internal upset, then it has a similar internal upset also at the opposite end. A drill pipe having an internal upset at the journal end portion (pin side) and having no internal upset at the opposite sleeve end portion (box side) is completely atypical of the opposite end.
    The advantage of such a design is the ability to make the sight tube such that, since it is usually brought from one side into the outer tube, compared to constructions on both sides of a 3/14
    Thickening of the wall thickness inwards can be designed with a much larger outer diameter. Consequently, the Iendendufehmesset the inner tube can be made considerably larger, which has a positive effect on minimizing pressure losses of the drilling fluid.
    In a preferred embodiment of the invention, the inner tube has a thickening of the wall thickness inwardly in a sleeve-side end region. This is advantageous because a continuous transition can thus be made between two drill pipes, which are commonly connected via box and pin (i.e., sleeve connectors and trunnion connectors) to form the drill string. This advantage becomes greater if, as in a preferred embodiment of the invention, the inner diameter of the inner tube in the region of the sleeve-side thickening inward essentially corresponds inwardly to the inner diameter of the outer tube in the region of the thickening on the side of the plug.
    According to a further preferred embodiment, the outer tube has at both ends a thickening of the wall thickness to the outside. As a result of this further increase in stability in the form of an externa1 upset, the internal upset, ie the thickening of the wall thickness inwardly, can be made less pronounced, which has a positive effect on the throughput of the drilling or rinsing liquid due to the increased inside diameter.
    According to a particularly preferred embodiment of the invention, the inner tube at least partially on its outer side: at least one conductor track, preferably two conductor tracks :, on. In the prior art, when an inner tube is used, conductor tracks or conductors are usually arranged between inner tube and outer tube. However, there is the risk that the conductors will be damaged by vibration, strain and other environmental influences common in a drilling environment, both during production and during later use of the drill pipe in a drill string. On the other hand, if the conductors are arranged directly on the inner tube, preferably in the form of flat conductors deposited on the inner tube or embedded in the inner tube, they are much better protected by the inner tube.
    This effect is further enhanced if, as proposed in accordance with a preferred embodiment of the invention, the inner tube is at least partially spaced from the outer tube and forms an annular cavity. Preferably, this cavity extends substantially over the entire central region of the tube, ie over the sections in which there are no threaded pieces or thickenings or upsets. As a result, the conductors are decoupled from the outer tube over a substantial part of their course and thus less exposed to potentially harmful environmental influences. For this purpose, a few millimeters are sufficient. The spacing therefore has no significant effect on the interior geometry and rigidity of the drill pipe per se.
    The cavity can receive additional added value by including, as in accordance with further preferred embodiments of the invention, a filling material, data carriers and / or sensors. For example, Silicone oils or air improve buoyancy, while sand, rubber, granules, polymers, resins or fiber composites can dampen drill pipe vibrations. Data carriers may carry information about the identity of the drill pipe, its last maintenance and the like or record data collected by sensors, such as pressure, vibration or temperature. For this purpose, it makes sense if the or the disk or the sensor or the sensors are connected to the conductors at least temporarily, to be able to be read in the assembled state of the drill pipe. For all applications and constructions of the cavity, it is particularly preferred if it is sealed against the environment and the interior of the drill pipe. A completely pressure, water, dust and explosion-proof seal is particularly preferred.
    An embodiment of the invention will be explained in more detail below with reference to the drawing. It shows:
    1 is a greatly simplified sketch of a drill pipe according to the invention,
    FIG. 2 shows a first detail of FIG. 1 and FIG. 3 shows a second detail of FIG.
    Fig. 1 shows a highly simplified sketch of a drill pipe 1 according to the invention with an outer tube 2 and an inner tube 3. The drill pipe has a socket connector 4 with an internal thread (not shown) and a pin connector 5 with an external thread (not shown) in a known per se ). A sleeve-side end region forms the box region 6 and a pin-side end region forms the pin region 7. A middle region 8 extends between these two. The pin region 7, the middle region 8 and the box region 6 can be made integral, ie in one piece. or be manufactured in several parts, for example: welded (z.3 by friction welding), glued or screwed.
    The illustrated wall thickness of the inner tube 3 serves only VeransChaulichüng. In reality, the aim is that the difference between the inner diameter of the Außenrohreä 2 and the inner diameter of the inner tube 3 is minimized. Preferably, the inner diameter of the inner tube 3 deviates only slightly, preferably not more than 10%, from the inner diameter of the outer tube 2.
    Socket and pin connectors 4, 5 each have, in this embodiment, a device 9, 10 for producing a galvanically conductive connection to the respectively adjacent drill pipe 1 of the drill string. How such a device can be configured is disclosed, for example, in AT 508 272 B1. Furthermore, the inner tube in the illustrated embodiment has two 6/14
    • · · · · · * · · · · · · · · · · · · # *.
    Conductor tracks 11, 12 which are embedded in the inner tube 3 in this embodiment. Between outer tube 2 and inner tube 3 is a cavity thirteenth
    Fig. 2 shows a first detail of Fig. 1 in the region of the transition from the central region 8 to the pin portion 7. The conductor 11 on the outside of the inner tube 3 is provided with a conductor 14, which by the enlarged in this area cavity 13 and in a separate conductor channel 16 continues to the device 10 for producing a galvanically conductive connection with a subsequent drill pipe.
    2 shows a mounting ring 17. This is in the illustrated embodiment frictionally connected to the outer tube 2. Embodiments in which the mounting ring 17 is connected to the outer tube 2 differently, for example, by a material fit by welding, are also conceivable. The mounting ring 17 has a thread 18. About this thread 18, the inner tube 3, after it was brought from the box side in the outer tube 2, indirectly connected to the outer tube 2 and positioned relative to the outer tube 2. An advantage of such an indirect connection between the outer and inner tubes 2, 3 is the easy installation of the wiring before connecting. In addition, the Geshangerohr so, for example: for maintenance, again easily denied. For the protection of the cavity 13 or for protection: of components located in the cavity 13 clamping rings 19, 20 are provided which seal the cavity relative to the drill pipe environment and the interior of the drill pipe 1.
    FIG. 3 shows a second detail of FIG. 1 in the region of the transition from the middle region 8 to the box region 6. The device 9 for producing a galvanically conductive connection is arranged directly on the inner tube 3 Inside the inner tube 3 guided conductor (not shown), which leads to the device 9. The inner tube 3 has at its box-side end an internal thread 21 and a 7/14
    ···· ··· · · · · ··· # ♦ · · · · ·
    · '
    External thread 22 on. via the external thread 22, the inner tube 3 is connected via a second mounting ring 23 and clamping rings 30, 31 analogously to the pin area · 7 kraftschiüssig with the outer tube 2.
    In the internal thread 21 of the inner tube 3, a protective sleeve 24 is screwed. The protective sleeve 24 protects the device 9 for producing a galvanically conductive connection and the transition from the device 9 to the inner tube 3. This protection is important because it can lead to the formation of a spark when producing a galvanically conductive connection. This should, especially if the drill string for, oil, natural gas or geothermal. Drill holes are used, in any case in a relation to the Bohrstrangumgebung and the Bohrstranginneren completely sealed space arise because from a certain depth can occur at any time smaller GasanSammlungen that could be brought by a spark to explode.
    A spring-loaded movable pressure plate 25 protects the device 9 to the box side. Towards the end face of the drill pipe 1, the device 9 is sealed by an inner seal group 26 between protective sleeve 24 and pressure plate 25 and an outer seal group 27 between pressure plate 25 and outer tube 2.
    In addition, located between the guard ring 25 and the outer tube 2, an O-ring 28, as a compression body for pressure equalization against residual liquid. To the cavity 13, the device 9 is sealed by the two clamping rings 30, 31, which are clamped between a stop 29 and the mounting ring 23. Both simultaneously seal the cavity 13 itself. 8/14
    权利要求:
    Claims (6)
    [1]
    Drill pipe (1), in particular for a drill string, with an outer tube (2) and an inner tube (3), a socket connector (4) with an internal thread at one end of the drill pipe (1) and a pin connector (5) with an external thread on the sleeve connector (4) opposite end, wherein the inner tube (3) is arranged substantially concentrically in the outer tube (2) and wherein the drill pipe (1) has a central region (8) with an inner diameter, characterized in that the outer tube (2 ) at a pin-side end portion (7) has a thickening of the wall thickness inwardly with respect to the inner diameter of the central region (8) smaller inner diameter and that the inner diameter of the outer tube {2) at a sleeve-side end portion (4) relative to the inner diameter of the central region (8 ) remains essentially the same. Drill pipe (1) according to claim 1, characterized in that the inner tube (3) in a sleeve-side end region (6) has a thickening of the wall thickness inwards. Drill pipe (1) according to claim 2, characterized in that the inner diameter of the inner tube (3) in the region of the sleeve-side thickening inwardly substantially corresponds to the inner diameter of the outer tube (2) in the region of the pin-side thickening inwards. A drill pipe (1) according to any one of claims 1 to 3, characterized in that the outer pipe (2) at both ends has a thickening of the wall thickness to the outside. Drill pipe (1) according to one of claims 1 to 4, characterized in that the inner tube (3) at least partially on its outer side at least one conductor track (11, 12), preferably two conductor tracks (11, 12). * *

    • .. •. *. *. *. *. *. *. • .. .. .. .. .. 9
    [2]
    6. drill pipe (1) according to one of claims 1 to 5, characterized in that the inner tube (3) at least partially spaced from the outer tube (2) and thereby forms an annular cavity (13).
    [3]
    7. drill pipe (1) according to claim 6, characterized in that in the HohIraum (13) is a Fül1 material.
    [4]
    8. drill pipe (1) according to any one of claims 6 or 7, characterized in that in the cavity (13) is a data carrier.
    [5]
    9. drill pipe (1) according to one of claims 6 to 8, characterized in that in the cavity (13) is at least one sensor,
    [6]
    10. drill pipe (1) according to one of claims 6 to 9, characterized in that the cavity (13) relative to the environment and the interior of the drill pipe (1) is abgediehret. 10/14
    类似技术:
    公开号 | 公开日 | 专利标题
    DE3106189C2|1989-09-21|
    DE3121899C2|1989-05-11|
    DE102008048440B4|2011-04-14|Central buffer coupling for rail vehicles
    EP2989283B1|2017-11-22|Drill pipe
    DE1220982B|1966-07-14|Remote control device, especially for working with radioactive material in hot cells
    EP1496334B1|2005-11-23|Measuring point bolt
    EP3266084B1|2019-10-23|Cable seal
    DE102012007460A1|2013-10-17|Device for laying long molded parts through device walls
    EP3040595A1|2016-07-06|Coupling system for hoses and pipes and method for assembling a coupling system
    DE2105108A1|1971-09-02|Collapsible pipe coupling
    DE202018104311U1|2019-10-30|High-current contact
    DE2651986A1|1978-05-18|DEVICE TO AVOID OVERPRESSURE IN THE HOUSING OF SHUT-OFF DEVICES
    DE102013108493A1|2015-02-12|A system for delivering fluid media from a borehole and method for installing a pump unit designed as an eccentric screw pump in a borehole
    DE102013220148B3|2015-02-26|Balancing unit and equalization system
    DE102013201603A1|2014-07-31|Device for feeding small parts at installation locations
    DE102015224968A1|2017-06-14|Filter accessory device, filter housing, adapter device and filter assembly
    DE102014106358A1|2015-01-22|System for hydraulic systems
    DE528545C|1931-07-01|Pipe connection with a sleeve pushed over the pipe ends, in which the seal is made exclusively by elastic rings made of rubber or the like pressed between sleeve and pipe, which are moved from conical sleeve space expansions into narrowed sleeve ring spaces
    DE102019208375A1|2020-12-10|Tube with flange
    DE202012007501U1|2012-08-27|Autonomous pressure measuring device
    DE102016222251B4|2018-09-27|Method for leak testing and electrically or electrohydraulically operated actuator
    DE202019101493U1|2020-06-18|Hydraulic cylinder
    WO2007128532A2|2007-11-15|Current lead-through device for high pressures and temperatures
    DE112019004357T5|2021-05-12|FLOW CHANNEL CONNECTION STRUCTURE
    DE1575534C|1971-09-09|Device for moving axially displaceable parts
    同族专利:
    公开号 | 公开日
    PL2989283T3|2018-06-29|
    NO2989283T3|2018-04-21|
    AU2014256816A1|2015-11-12|
    US20160024855A1|2016-01-28|
    BR112015026625B1|2021-05-04|
    AU2014256816B2|2018-02-08|
    BR112015026625A2|2020-03-10|
    WO2014172720A3|2015-02-19|
    CA2909870C|2019-09-24|
    WO2014172720A2|2014-10-30|
    CA2909870A1|2014-10-30|
    US10107049B2|2018-10-23|
    EP2989283A2|2016-03-02|
    EP2989283B1|2017-11-22|
    AT514235B1|2020-03-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US20080041575A1|2006-07-10|2008-02-21|Schlumberger Technology Corporation|Electromagnetic wellbore telemetry system for tubular strings|
    WO2012045698A1|2010-10-04|2012-04-12|Vam Drilling France|Pipe and pipe assembly provided with layers of electrically conductive material for conveying substances|
    US4012061A|1974-12-23|1977-03-15|Smith International, Inc.|Dual conduit drill stem member|
    GB8714754D0|1987-06-24|1987-07-29|Framo Dev Ltd|Electrical conductor arrangements|
    US4997048A|1989-08-24|1991-03-05|Isom John R|Drill pipe assemblies|
    CA2156398C|1993-12-22|2003-07-08|J. Scott Martin|Drill pipe|
    US6670880B1|2000-07-19|2003-12-30|Novatek Engineering, Inc.|Downhole data transmission system|
    GB0115524D0|2001-06-26|2001-08-15|Xl Technology Ltd|Conducting system|
    AT508272B1|2009-06-08|2011-01-15|Advanced Drilling Solutions Gmbh|DEVICE FOR CONNECTING ELECTRICAL WIRES|
    US9431813B2|2012-09-21|2016-08-30|Halliburton Energy Services, Inc.|Redundant wired pipe-in-pipe telemetry system|WO2014173652A2|2013-04-22|2014-10-30|Voith Patent Gmbh|Metal pipe having a connector|
    US10320512B2|2017-01-08|2019-06-11|At&T Intellectual Property I, L.P.|Interference cancelation for 5G or other next generation network|
    US20210187713A1|2019-12-23|2021-06-24|Crank Brothers, Inc.|Tool storage assembly, and head tube assembly including the tool storage assembly|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA336/2013A|AT514235B1|2013-04-22|2013-04-22|Drill pipe|ATA336/2013A| AT514235B1|2013-04-22|2013-04-22|Drill pipe|
    AU2014256816A| AU2014256816B2|2013-04-22|2014-03-27|Drill pipe|
    CA2909870A| CA2909870C|2013-04-22|2014-03-27|Drill pipe|
    NO14719187A| NO2989283T3|2013-04-22|2014-03-27|
    PCT/AT2014/000063| WO2014172720A2|2013-04-22|2014-03-27|Drill pipe|
    PL14719187T| PL2989283T3|2013-04-22|2014-03-27|Drill pipe|
    EP14719187.8A| EP2989283B1|2013-04-22|2014-03-27|Drill pipe|
    US14/781,772| US10107049B2|2013-04-22|2014-03-27|Drill pipe|
    BR112015026625-8A| BR112015026625B1|2013-04-22|2014-03-27|drill pipe|
    [返回顶部]