• 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:
    The invention relates to a propulsion drilling apparatus for setting Rohrschirmsystemen, with a drilling device (2), with a drill string (3), which is in operative connection with the drilling device (2) and can be displaced by this in a rotational and / or striking movement to a Borehole to drill, with a plurality of interconnected Pipe umbrella tubes (5a, 5b), which surround at least the drill string (3), remain in the well and at the ends each having a portion having an internal thread (6a, 6b, 6c, 6d). According to the invention, it is proposed that in each case two pipe screen tubes (5a, 5b) are connected by means of a sleeve (7), the sleeve (7) has an external thread (8) and the external thread (8) with the internal threads (6a, 6b, 6c, 6d ) of the two pipe screen tubes (5a, 5b) cooperates, that the sleeve (7) has an inner diameter (9) which is greater than the outer diameter (10) of the drill string (3), so that the drill pipe (3) via the sleeve (7 ) along the pipe screen tube (5a, 5b) and / or can be carried out and that the ends (13a, 13b) of the sleeve (7) has a chamfer (11a, 11b) in order to hook the drill string (3) To avoid entry or exit. The invention also relates to a pipe screen tube (5a, 5b) for use in a propulsion drilling device (1), wherein the tube screen tube (5a, 5b) has two ends each having a region with an internal thread (6a, 6b, 6c, 6d). According to the invention, it is proposed that the internal thread (6a, 6b, 6c, 6d) has an inside diameter which is greater than the inside diameter of the pipe screen pipe (5a, 5b), so that a stop for a sleeve screwed into the pipe screen pipe (5a, 5b) (7) arises. Furthermore, the invention relates to a sleeve for connecting two pipe screen tubes (5a, 5b) in a propulsion drilling device (1), wherein the sleeve (7) has two ends (13a, 13b) each having a region with an external thread (8). According to the invention, it is proposed that the ends (13a, 13b) of the sleeve (7) have a chamfer (11a, 11b) in order to avoid entanglement of the drill string (3) during insertion or removal.
    公开号:CH710859A2
    申请号:CH00289/16
    申请日:2016-03-07
    公开日:2016-09-15
    发明作者:Langefeld Jörg
    申请人:August Reiners Bauunternehmung GmbH；
    IPC主号:
    专利说明:

    The present invention relates to a jacking drilling apparatus for setting Rohrschirmsystemen, with a drilling device, with a drill string, which is in operative connection with the drilling device and is displaceable by them in a rotational and / or striking movement to drill a borehole. The propulsion drilling apparatus further comprises a plurality of interconnected Pipe shield tubes, which surround at least the drill pipe, remain in the wellbore and at the ends each having an area with an internal thread. In addition, the invention comprises a pipe screen tube for use in a propulsion drilling, wherein the pipe screen tube has two ends, each having an area with an internal thread. Finally, the invention comprises a sleeve for connecting two pipe screen pipes in a propulsion device, wherein the sleeve has two ends, each having a region with an external thread.
    In tunneling, it is a way to secure the top of the tunnel or the vault, by means of a Rohrschirmsystems, or shortly a pipe shield. For this purpose, up to 30 m long pipe screen pipes in tunnel driving direction are currently being brought into the mountains or the ground next to each other. By mountain or ground, all geological formations are understood, in which the pipe umbrella is introduced. It can be stones, soil, clay, sand, gravel or similar, but also cavities in between. The pipe cane tubes are arranged in an arc so that a vault remains after digging the tunnel. In order to form the pipe shield system over the entire length of the tunnel, the pipe screen pipes are introduced into the mountain or the ground in an angle of, for example, 7 ° rising in the direction of the tunnel. At the end of the adjacent pipe shield pipes, a next «segment», consisting of several pipe screen pipes, is introduced at this angle into the mountains or the ground. The respective segments are arranged overlapping, so that a continuous pipe screen can be formed over the entire length of the tunnel.
    The hollow pipe screen pipes are usually filled after introduction with a filling material, in particular injection material, for example mortar, foam or the like. The pipe shield system thus forms an arcuate vault, which ensures the surrounding mountains or the soil from falling down or the building from collapsing. Therefore, such pipe umbrellas are mostly used in civil engineering works, where a corresponding fuse for static reasons is required. The canopies are not only for tunneling, but also for shafts, niches or other structures used in which such a fuse is desired.
    To set the pipe screen pipes, these are introduced with the jacking drilling in the mountains or the soil. For this purpose, in one embodiment, a drill bit on a drill pipe is first pushed through the pipe screen pipe. With the drill bit, a borehole is drilled into the mountain or the ground and the pipe umbrella tube surrounding the drill string is pushed or pulled into the borehole. The drill string is rotated and / or hammered by a drilling apparatus so as to drill the well by means of the drill bit. In another embodiment, a lost drill bit is placed on the front end of the pipe screen tube and coupled to the drill pipe. The pipe screen pipe is pushed or pulled into the hole drilled by the drill bit and fills the borehole. The drill pipe is finally pulled out of the pipe screen tube and the drill bit remains in the hole.
    Since a complete pipe screen pipe with a length of 30 m at the time is difficult to transport, such a pipe screen raw r is formed from a plurality of shorter pipe screen tubes. For example, the length of a single pipe screen pipe is 3 m, so that several pipe screen pipes must be strung together to form the full length of the complete pipe screen tube.
    The state of the art here is that a pipe screen tube at one end has an external thread and at the other end a matching internal thread. The pipe screen pipes are then connected by screwing the external thread of a pipe screen pipe into the internal thread of a second pipe screen pipe. By repeating this process, a continuous pipe screen pipe is finally formed. The disadvantage here is that such a joining forms weak points in the thread. This connection point is particularly critical with respect to a required resistance moment of the pipe screen pipe.
    Likewise, an assembly of two pipe screen pipes in civil engineering by means of an outer sleeve is known. The pipe shield tubes have an external thread at each end and the outer sleeve an internal thread. The outer sleeve connects the two Rohrschirmrohrenden such that two pipe screen tubes are screwed into the outer sleeve. Thus, the outer sleeve is located on the outside of the pipe screen pipe. The disadvantage here is that the outer sleeve increases the diameter of the pipe screen pipe at the junctions of two pipe shield tubes, which can lead to problems during insertion / retraction of the pipe screen pipe in the borehole.
    The object of the invention is thus to provide a sleeve and a pipe screen tube which is connectable by means of the sleeve with a second pipe shield tube, and to propose a propulsion drilling for setting Rohrschirmsystemen, wherein the sleeve has sufficient stability at the junction of two pipe screen pipes and problems reduced during insertion of the pipe screen pipe in a borehole.
    The object is achieved by the jacking device for setting Rohrschirmsystemen for example in mountains or soils, especially in civil engineering, the pipe screen pipe for use in a jacking drilling device and the sleeve for connecting two pipe screen pipes in the jacking device according to the independent claims.
    Proposed is a jacking drilling device for setting Rohrschirmsystemen in mountains or soils. The propulsion drilling apparatus includes a drilling apparatus having a drill string operatively connected to the drilling apparatus and translatable therethrough into a rotational and / or striking motion to drill a borehole. The rotary and / or hammering movement of the drilling apparatus is generally generated by a hydraulic, pneumatic or electric drive which is also part of the propulsion drilling apparatus. Conveniently, the propulsion drilling apparatus includes a guide with which the borehole can be drilled at a predetermined location.
    Furthermore, the propulsion drilling device comprises a plurality of interconnected Pipe shield tubes which surround at least the drill pipe, remain in the wellbore and at the ends each having a region with an internal thread. By using several shorter pipe shields their transport and handling is significantly simplified. By means of the internal thread in the region of the respective ends of the pipe screen pipes, these are easy to assemble.
    According to the invention, that in each case two pipe screen pipes are connected by means of a sleeve. In this case, the sleeve has an external thread, wherein the external thread cooperates with the internal thread of the two pipe shield tubes. The sleeve is therefore an inner sleeve. By means of the sleeve so the pipe shield tube can be extended as desired to another pipe screen pipe.
    Also, the sleeve has an inner diameter which is greater than the outer diameter of the drill string, so that the drill string on the sleeve along the pipe screen tube on and / or can be performed. This allows reuse of the drill string, which saves costs.
    In addition, the ends of the sleeve on a chamfer in order to prevent entanglement of the drill pipe or - in the case of non-lost drill bit - and the drill bit during insertion or removal. This simplifies the insertion and removal of the drill string or the drill bit from the pipe screen tube and thus saves working time.
    An advantageous development is when the sleeve is dimensioned such that the moment of resistance of the sleeve is at least equal to that of the pipe screen tube. As a result, a complete pipe screen pipe joined together from a plurality of pipe screen pipes, in particular in the region of the sleeve, has no weak points. In particular, the pipe screen pipe is reinforced at a junction of two pipe screen pipes against a bending or resistance moment.
    Moreover, it is advantageous if the ends of the sleeve have an inner diameter which is greater than or equal to the inner diameter of the pipe screen pipe in the region of the internal thread-free inside. As a result, a step is preferably formed, and screwing the sleeve into the pipe screen pipe over this stage is prevented.
    Furthermore, it is advantageous if the sleeve has an inner diameter which is smaller than the inner diameter of the pipe screen pipe. Since the sleeve is screwed into the pipe screen pipe, the sleeve has a smaller outer diameter than the pipe screen pipe. In order to form the moment of resistance of a screwed-together pipe screen pipe in the region of the sleeve at least equal to that of a single pipe screen pipe, the inner diameter of the sleeve is formed smaller than the inner diameter of the pipe screen pipe. As a result, the wall thickness of the sleeve increases, so that the moment of resistance of the sleeve and the moment of resistance of the pipe screen pipe in the region of the sleeve are preferably the same.
    Especially for a pre-assembly of the sleeve in a pipe end, it may be advantageous if the sleeve is fixed at least at one end to the pipe screen pipe. The fixation can be achieved for example by means of a radially screwed screw, an adhesive or one or more welding points. The assembly time on site is thereby shortened and the assembly thus cheaper.
    Furthermore, a pipe screen tube is proposed for use in a propulsion drilling apparatus. In this case, the pipe screen tube has two ends, each having a region with an internal thread.
    In the inventive pipe screen tube, the internal thread has an inner diameter which is greater than the inner diameter of the pipe screen tube, so that a stop for a screwed into the pipe screen pipe sleeve is formed. As a result, the sleeve can only be screwed in up to the stop. By the stop a complete screwing the sleeve is prevented in a pipe screen tube, and a firm connection of two pipe shields through the sleeve is ensured.
    It is also advantageous if the length of the internal thread in the pipe screen pipe 0 to 30% greater than half the length of the joint provided for the connection. This makes it possible to screw the sleeve within this range up to half or slightly more than half the length of the sleeve in the pipe screen tube. It follows, of course, that the sleeve can be screwed in a maximum or not up to half in a second pipe screen pipe. A greater length of the internal thread of the pipe screen tube may be advantageous if, for some reasons, the sleeve in the second pipe shield tube is not screwed to half its length, z. Ex. Because the thread is dirty or damaged. Thus, it can be dispensed with a cleaning or replacing the damaged pipe screen tube, which saves time and material costs.
    If the tube screen pipe a resistance moment between 40 cm <3> and 150 cm <3>, in particular between 60 cm <3> and 120 cm <3>, this has further advantages. As a result, a sufficient resistance against, for example, a bending moment of the pipe screen pipe is given. However, this moment of resistance is only advantageous for the present invention in currently customary pipe screen pipes, but by no means restrictive, since even more massive pipe screen pipes can be used in principle.
    It is particularly advantageous if the pipe screen pipe made of steel, plastic or fiber reinforced, in particular glass fiber or carbon fiber reinforced plastic is formed. Steel is ideal if a higher resistance to load is required. Plastic can e.g. be used if the pipe screen pipe to be resistant to corrosion. Fiber reinforced plastic has high strength and also provides resistance to corrosion. Usually steel pipes are used for the front pipe screen pipes, while the last scheduled pipe screen tube, the so-called Nachläuferrohr, is made of plastic in order to tunneling, for example, by destruction, can be easily removed again.
    It is also advantageous if the pipe screen has an outer diameter between 50 mm to 200 mm and / or an inner diameter of 25 mm to 150 mm. Since the pipe screen pipe should be matched to the diameter of a borehole to be drilled, such a matching is provided by a variable outer diameter of the pipe screen pipe. By a e.g. larger inner diameter, given the outer diameter, weight is also saved, making the pipe screen tube is easy to handle. However, this outer diameter is merely advantageous for the present invention in currently customary pipe screen pipes, but by no means restrictive since other outer diameters can also be used in principle.
    Further, it is advantageous if the pipe screen outside the range of the internal thread has a wall thickness between 3 mm and 15 mm and / or in the region of the internal thread has a wall thickness between 2 mm and 12 mm. Due to a higher wall thickness, a higher strength or moment of resistance is given. A smaller wall thickness reduces the weight, making the pipe screen tube easier to transport and process. Of course, other wall thicknesses are also possible here.
    In an advantageous embodiment of the pipe screen pipe, a seal is arranged on at least one contact point of the pipe screen pipe with an adjacent pipe screen pipe or the sleeve. This may be, for example, an O-ring seal, which is arranged on the end face of the pipe screen pipe or. The seal has particular advantages in the final filling of the pipe screen tube with injection material or when using drilling fluid to prevent uncontrolled leakage of the material at the junction.
    Further proposed is a sleeve for connecting two pipe screen pipes in a propulsion drilling device according to the foregoing description. The sleeve has two ends, each with an area with an external thread. The external thread can be arranged continuously on the outside of the sleeve or executed interrupted. An advantage of the sleeve with the two threaded ends is, for example, that if the thread is damaged during transportation, only the sleeve needs to be changed and not the entire tube has to be scrapped.
    According to the invention, the ends of the sleeve on a chamfer in order to avoid entanglement of the drill string during insertion or removal. The drill pipe slips more easily over the sleeve with the chamfer. This saves time in the drilling of a pipe shield system, since an introduction or execution of the drill string is faster and easier to do by avoiding the entanglement. Finally, a time saving also leads to a reduction in costs of the pipe shield system.
    An advantageous further development is when the chamfer has an angle between 10 ° and 80 °, in particular between 25 ° and 60 °. By a shallower angle the hooking of the drill string is further reduced. In the case of a steeper angle, the strength or the bending moment of the sleeve is increased, since the wall thickness of the sleeve in the area of the chamfer "faster" is achieved. In an alternative embodiment, the chamfer may have multiple sections at different angles. Thus, e.g. For a drill pipe with a smaller diameter, the chamfer be designed so that radially from the outside inwards, the angle of the chamfer is steep at first, then flattening in sections. Thus, the drill pipe can be switched on or run without entanglement, wherein the sleeve still has a high moment of resistance.
    Moreover, it is advantageous if the sleeve has a wall thickness in the range between 5 mm and 20 mm, in particular between 7.5 mm and 15 mm. A larger wall thickness increases the moment of resistance. Due to a smaller wall thickness, the sleeve covers a smaller area in an inner space of the pipe screen pipe, whereby the drill pipe is easier to install and to execute. Other wall thicknesses of the sleeve are of course also possible depending on the application.
    If the sleeve is made of steel, plastic or fiber-reinforced, in particular glass fiber or carbon fiber reinforced plastic, it brings with it further advantages. Steel is ideal if a higher resistance to load is required. Plastic can e.g. used if the sleeve is to be resistant to corrosion. Fiber reinforced plastic has high strength and also provides resistance to corrosion.
    Further, it is advantageous if the external thread of the sleeve is at least partially formed over the length. This allows a faster manufacturing process of the sleeve, whereby manufacturing costs can be saved.
    It is particularly advantageous if on the outside of the sleeve in the region of the middle of the longitudinal direction an elevation formed at least in sections around the circumference, for example a web, is arranged, so that the sleeve can only be screwed into a tube screen pipe until elevation. This ensures that the sleeve does not completely screw into one of the two pipe shield tubes during a drilling process. As a result, always a part of the external thread of the sleeve protrudes from the pipe screen pipe, to which the second pipe screen pipe can be screwed. Additionally or alternatively, the elevation may also be sealing, so that e.g. an inflow of water into or out of the pipe screen tube is prevented. Also, leakage of a filling material, which is introduced into the pipe shield pipe, is prevented from the pipe shield pipe by the sealing effect of the protrusion. The elevation may be for the sealing effect e.g. be surrounded by a rubber ring.
    Further advantages of the invention are described in the following embodiments. It shows<Tb> FIG. 1 <SEP> a sectional view of a propulsion drilling device with a drilling device, with a drill pipe, with a drill bit and two pipe screen pipes, which are connected by means of a sleeve,<Tb> FIG. 2 <SEP> a sectional view of a section of two pipe screen tubes with a stop, which are connected by means of a sleeve, and<Tb> FIG. 3 <SEP> A sectional view of a section of two pipe shield tubes, with a protrusion and a curved chamfer of the sleeve.
    In Fig. 1 is a sectional view of a jacking drilling device 1 with a drilling device 2, with a drill pipe 3, with a drill bit 4 and two pipe shields 5a, 5b, which are connected by means of a sleeve 7, shown. For clarity, the sleeve 7 is not drawn hatched. The drilling device 2 is in operative connection with the drill pipe 3 and can be displaced by it into a rotary and / or hammering motion. The drill pipe 3 has an outer diameter 10 and is preferably rotationally symmetrical about a longitudinal axis. It has at certain intervals compounds 24, for example in the form of outer sleeves on which individual rods of the drill string 3 are interconnected.
    The drill pipe 3 transmits the rotary and / or impact movement to the drill bit 4, which has suitable means for drilling a borehole in a mountain or a ground. The drill bit 4 has a size such that the pipe screen tubes 5a, 5b can be inserted into the borehole provided therefor or can be retracted by the drill bit 4 or the drill pipe 3. The pipe screen pipes 5a, 5b surround the drill pipe 3.
    The pipe screen 5a has at the two ends of internal thread 6a, 6c, the pipe screen tube 5b has at the two ends internal thread 6b, 6d. The internal threads 6 have a length 23. For reasons of clarity, only with an internal thread 6, the length 23 is provided with a reference numeral. The sleeve 7 has on its outer circumference an external thread 8 and a length 22. The sleeve 7 is screwed with its external thread 8 in the internal thread 6a of the pipe screen tube 5a to half of the length 22 of the sleeve 7. On the pipe screen tube 5a opposite end of the sleeve 7, the pipe screen tube 5b is screwed with its internal thread 6b on the sleeve 7. The sleeve 7 thereby connects the two pipe shield tubes 5a, 5b by means of a screw connection. A screw connection shown in this way by means of a sleeve 7 is advantageous because the sleeve 7 is disposed within the two pipe screen tubes 5a, 5b, whereby an outer cross section of the pipe screen 5a, 5b is not increased. This prevents snagging of the pipe screen pipes 5a, 5b in a borehole provided therefor. The two pipe shield tubes 5a, 5b abut each other at the end faces 12.
    The sleeve 7 has two ends 13a, 13b. The end 13a of the sleeve 7 is screwed into the pipe shield tube 5a, the end 13b of the sleeve 7 is screwed into the pipe shield tube 5b. It can be secured against rotation by means of a fixation screw, not shown, or an adhesive or welding connection on one or both pipe shields 5a, 5b. At the respective ends 13a, 13b of the sleeve 7 chamfers 11a, 11b are formed. The drill string 3 is pulled out through the sleeve 7 when drilling completed. The bevels 11a prevent snagging of the drill string 3 when passing through the sleeve 7. The chamfer 11b also prevents snagging of the drill pipe 3, but upon insertion into the pipe screen 5a through the sleeve 7 therethrough. Otherwise, hooking could occur, for example, at connection points of the drill pipe 3 consisting of a plurality of individual strands, not shown here.
    The chamfers 11a, 11b form an angle 14a, 14b with a sleeve transverse direction. This is preferably between 10 ° and 80 °. In the embodiment shown, both angles 14a, 14b are of equal value. In a particular embodiment, it may be advantageous if e.g. the angle 14a has a greater value than the angle 14b. As a result, in particular pulling out of the drill string 3 is further simplified.
    The embodiment shown is explained only with reference to the two pipe shields 5a, 5b. However, it is to be understood that in the propulsion drilling apparatus 1, a plurality of pipe shield tubes 5 may be connected to each other in the manner shown to reach a desired length of the pipe shield pipe.
    In Fig. 2 is a sectional view of a section of two pipe shields 5a, 5b with a stop 15, which are connected by means of a sleeve 7, shown as an alternative embodiment. Same features are provided here with the same reference numerals as in Fig. 1. Also, a re-explanation of similar effects and functions of the same features as in Fig. 1 will be omitted.
    The sleeve 7 is centrally screwed into the internal thread 6a, 6b between the pipe screen tubes 5a, 5b. The two internal threads 6a, 6b have a greater length 23 than half the length 22 of the sleeve 7. As a result, the sleeve 7 can be displaced in the direction of the pipe screen pipe 5a or in the direction of the pipe screen pipe 5b in the present exemplary embodiment.
    The pipe screen tubes 5a, 5b have an inner diameter 16. In addition, the pipe screen tubes 5a, 5b in the region of their internal threads 6a, 6b, an inner diameter 17 which is greater than the inner diameter 16 of the pipe screen tubes 5a, 5b. This difference of the inner diameter leads at the end of the internal thread 6a, 6b to the stop 15. The stop 15 limits too far screwing the sleeve 7 in the pipe screen 5a or in the pipe screen tube 5b.
    The pipe screen tubes 5 have an outer diameter 18, a wall thickness 19 and a wall thickness 20 in the region of the internal thread 6. A moment of resistance of a pipe screen tube 5 is dependent on the dimensioning of these factors.
    In this embodiment, the chamfer 11 is divided into two chamfers 11c, 11d. The chamfer 11c has an angle 14c, and the chamfer 11d has an angle 14d. The angle 14c is formed in the example shown greater than the angle 14d. Alternatively, the chamfer 11 could also be divided into several sections, wherein the angles 14 of the chamfers 11 are also different. This is to the advantage of preventing hooking of the drill string 3 (see Fig. 1) when entering or carrying in the pipe screen tube on the sleeve 7.
    At the end faces 12 of the two pipe shield tubes 5a, 5b, a seal 25 is arranged. This seal 25 is designed in this embodiment as an O-ring and causes a seal of the joint of the pipe shield tubes 5a, 5b, to prevent uncontrolled leakage of liquid or filler.
    In Fig. 3 is a sectional view of a section of two pipe screen tubes 5a, 5b shown with a survey 21 and with a curved chamfer 11 as a further embodiment. The two pipe shields 5a, 5b are connected by means of the sleeve 7 in a known manner. The sleeve 7 has in this embodiment, a survey 21 in the form of a circumferential ridge, so that the pipe screen tubes 5 a, 5 b are not further than up to the survey 21 on the sleeve 7 can be screwed. The elevation 21 is arranged on the outside of the sleeve 7 in the region of the middle of the longitudinal direction at least in sections. If the elevation 21 is formed around the entire circumference of the sleeve 7, the elevation 21 may be formed as a seal. For this purpose, the elevation 21 may additionally or alternatively be provided with a sealing device, e.g. a rubber ring, be formed. This is advantageous in order to prevent ingress of liquid into the interior or its outflow from the interior of the pipe screen pipes 5a, 5b. Likewise, when the pipe shield pipes are pressed out with a filling material, their escape is prevented.
    Alternatively, as shown in this embodiment, the chamfer 11 may be formed curved. This has the advantage that an insertion or removal of the drill string (see Fig. 1), in particular with its connections 24 can be carried out without entanglement.
    The present invention is not limited to the illustrated and described embodiments. Variations within the scope of the claims are also possible as a combination of features, even if they are shown and described in different embodiments.
    LIST OF REFERENCE NUMBERS
    [0050]<Tb> 1 <September> Vortriebsbohrvorrichtung<Tb> 2 <September> drilling<Tb> 3 <September> drill pipe<Tb> 4 <September> bit<Tb> 5 <September> Pipe screen Pipe<Tb> 6 <September> internal thread<Tb> 7 <September> Socket<Tb> 8 <September> external thread<tb> 9 <SEP> Inner diameter of the sleeve<tb> 10 <SEP> Outer diameter of the drill string<Tb> 11 <September> chamfer<Tb> 12 <September> front side<tb> 13 <SEP> End of the sleeve<tb> 14 <SEP> Angle of the chamfer<Tb> 15 <September> stop<tb> 16 <SEP> Inner diameter of the pipe screen pipe<tb> 17 <SEP> Inner diameter of the thread of the pipe screen pipe<tb> 18 <SEP> Outer diameter of the pipe screen pipe<tb> 19 <SEP> Wall thickness of the pipe screen pipe<tb> 20 <SEP> Wall thickness of the pipe screen pipe in the area of the internal thread<Tb> 21 <September> Survey<tb> 22 <SEP> Length of the sleeve<tb> 23 <SEP> Length of internal thread<Tb> 24 <September> Connection<Tb> 25 <September> seal
    权利要求:
    Claims (15)
    [1]
    Propulsion drilling apparatus for setting pipe shield systems, comprising a drilling device (2), with a drill pipe (3), which is in operative connection with the drilling device (2) and is displaceable by them in a rotational and / or striking movement to a wellbore drill, with a plurality of interconnected pipe screen tubes (5) surrounding at least the drill string (3), remain in the well and at the ends each having a region with an internal thread (6), characterized in that in each case two pipe screen tubes (5) a sleeve (7) are connected, the sleeve (7) has an external thread (8) and the external thread (8) with the internal threads (6) of the two pipe shield tubes (5) cooperates, that the sleeve (7) has an inside diameter (9) which is larger than the outer diameter (10) of the drill pipe (3), so that the drill string (3) on the sleeve (7) away along the pipe screen tube (5) and / or can be performed and that the end n (13) of the sleeve (7) have a chamfer (11) to prevent snagging of the drill string (3) during insertion or removal.
    [2]
    2. jacking drilling device according to the preceding claim, characterized in that the sleeve (7) is dimensioned such that the moment of resistance of the sleeve (7) is at least equal to that of the pipe screen tube (5).
    [3]
    3. Drilling and drilling device according to one or more of the preceding claims, characterized in that the ends (13) of the sleeve (7) have an inner diameter which is greater than or equal to the inner diameter (16) of the pipe screen tube (5) in the region of the internal thread-free inside.
    [4]
    4. Drilling and drilling device according to one or more of the preceding claims, characterized in that the sleeve (7) has an inner diameter (9) which is smaller than the inner diameter (16) of the pipe screen pipe (5).
    [5]
    5. jacking drilling device according to one or more of the preceding claims, characterized in that the sleeve (7) is fixed at least at one end to the pipe screen tube (5).
    [6]
    6. tube screen pipe for use in a jacking drilling device (1) according to one or more of the preceding claims, wherein the pipe screen tube (5) has two ends, each having a region having an internal thread (6), characterized in that the internal thread (6) has an inside diameter (17), which is larger than the inner diameter (16) of the pipe screen pipe (5), so that a stop (15) for a screwed into the pipe screen pipe (5) sleeve (7) is formed.
    [7]
    7. pipe screen tube according to the preceding claim, characterized in that the length (23) of the internal thread (6) in the pipe screen tube (5) is 0 to 30% greater than half the length (22) of the joint provided for the connection (7 ).
    [8]
    8. pipe screen tube according to one or more of the preceding claims, characterized in that the pipe screen tube (5) made of steel, plastic or fiber reinforced plastic is formed and / or that the pipe screen tube (5) has a moment of resistance between 40 cm <3> and 150 cm < 3>, in particular between 60 cm <3> and 120 cm <3>.
    [9]
    9. tube screen tube according to one or more of the preceding claims, characterized in that the pipe screen tube (5) has an outer diameter (18) between 50 mm to 200 mm and / or an inner diameter (16) of 25 mm to 150 mm and / or the pipe screen tube (5) outside the region of the internal thread (6) has a wall thickness (19) between 3 mm and 15 mm and / or in the region of the internal thread (6) has a wall thickness (20) between 2 mm and 12 mm.
    [10]
    10. pipe screen tube according to one or more of the preceding claims, characterized in that at least one contact point of the pipe screen pipe (5) with an adjacent pipe screen pipe (5) or the sleeve (7) a seal (25) is arranged.
    [11]
    11. A sleeve for connecting two pipe screen tubes (5) in a propulsion drilling device (1) according to one or more of the preceding claims, wherein the sleeve (7) has two ends (13) each having a region with an external thread (8), characterized in that the ends (13) of the sleeve (7) have a chamfer (11) in order to avoid catching of the drill pipe (3) during insertion or removal.
    [12]
    12. Sleeve according to the preceding claim, characterized in that the chamfer (11) has an angle (14) between 10 ° to 80 °, in particular 25 ° to 60 °.
    [13]
    13. Muff according to one or more of the preceding claims, characterized in that the sleeve (7) has a wall thickness in the range between 5 mm and 20 mm, in particular between 7.5 mm and 15 mm.
    [14]
    14. Sleeve according to one or more of the preceding claims, characterized in that the sleeve (7) made of steel, plastic or fiber-reinforced plastic is formed.
    [15]
    15. A sleeve according to one or more of the preceding claims, characterized in that on the outside of the sleeve (7) in the region of the middle of the longitudinal direction an at least partially formed around the circumference elevation (21) is arranged, so that the sleeve (7) only up to the elevation (21) into a pipe screen tube (5) can be screwed and / or that the external thread (8) of the sleeve (7) is at least partially formed over the length.
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    同族专利:
    公开号 | 公开日
    AT516919A2|2016-09-15|
    DE102015103678A1|2016-09-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE1558971C3|1967-07-12|1974-01-24|Guenter Klemm, Spezialunternehmen Fuer Bohrtechnik, 5961 Rhode|Device for overlay drilling|
    DE3936362C1|1989-11-02|1991-03-07|Eastman Christensen Co., Salt Lake City, Utah, Us|
    AT408472B|1997-06-18|2001-12-27|Techmo Entw & Vertriebs Gmbh|Simultaneous drilling and lining of holes - using drill bit on drilling rod using striking or rotary motion and forming lining with sleeve tube pulled into hole by drill bit|
    法律状态:
    2019-10-31| AZW| Rejection (application)|
    优先权:
    申请号 | 申请日 | 专利标题
    DE102015103678.9A|DE102015103678A1|2015-03-13|2015-03-13|Drilling boring device for setting pipe shield systems, pipe shield pipe and sleeve|
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