EP4013949B1 - Installation de forage souterraine et son procédé de mise en place - Google Patents

Installation de forage souterraine et son procédé de mise en place Download PDF

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Publication number
EP4013949B1
EP4013949B1 EP20757547.3A EP20757547A EP4013949B1 EP 4013949 B1 EP4013949 B1 EP 4013949B1 EP 20757547 A EP20757547 A EP 20757547A EP 4013949 B1 EP4013949 B1 EP 4013949B1
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EP
European Patent Office
Prior art keywords
mast
shaft
erecting
drilling rig
segment
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.)
Active
Application number
EP20757547.3A
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German (de)
English (en)
Other versions
EP4013949A1 (fr
Inventor
Jürgen VOLKERS
Arend Lödden
Achim Nordbeck
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.)
Bentec Drilling and Oilfield Systems GmbH
Original Assignee
Bentec Drilling and Oilfield Systems GmbH
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Publication date
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Publication of EP4013949A1 publication Critical patent/EP4013949A1/fr
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C41/00—Methods of underground or surface mining; Layouts therefor
    • E21C41/16—Methods of underground mining; Layouts therefor
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C41/00—Methods of underground or surface mining; Layouts therefor
    • E21C41/16—Methods of underground mining; Layouts therefor
    • E21C41/24—Methods of underground mining; Layouts therefor for oil-bearing deposits
    • 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
    • E21B15/00—Supports for the drilling machine, e.g. derricks or masts
    • 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
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/02—Rod or cable suspensions
    • 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
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/08—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods
    • 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
    • E21B7/00—Special methods or apparatus for drilling
    • 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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/04—Directional drilling

Definitions

  • the invention relates to a drilling rig constructed and operated underground, referred to below as an underground drilling rig, and to a method for constructing the same.
  • Drilling rigs namely drilling rigs for sinking deep boreholes in hydrocarbon deposits or for developing geothermal energy are known per se in principle.
  • Such drilling rigs are conventionally designed as land drilling rigs or as so-called offshore drilling rigs.
  • From the U.S. 2,331,072 , the U.S. 2,989,294 , the U.S. 8,343,132 and the EP 2 245 256 A1 a method and a device for sinking a deep well underground are known.
  • Operating a drilling rig underground has the advantage that the drilling rig does not appear visually or acoustically above ground and the drilling rig does not require any space above ground. In a particularly preferred embodiment, no structural measures above ground are required for setting up the drilling rig at the position of the deep well.
  • a tunnel is driven into the rock.
  • the term "mountains” is to be understood in the sense of the so-called miners' language and describes the material of the earth's crust, in particular rock, into which mines (shafts, tunnels, etc.) are driven.
  • the tunnel driven into the rock to set up the drilling rig comprises at least one horizontal section or at least a substantially horizontal section. This is referred to below as the production tunnel.
  • a vertical shaft descends from this production adit. This is referred to below as the mast shaft.
  • the mast shaft is preferably, but not necessarily, a blind shaft, ie a shaft that does not reach the surface.
  • the drilling rig is set up in the production tunnel and below the mast shaft and partly into the mast shaft.
  • the production tunnel and the mast shaft and their creation are not the subject of the innovation presented here.
  • the innovation is a method for erecting a drilling rig (underground drilling rig) in such a production tunnel and in the area of a mast shaft there, as well as a drilling rig constructed according to the method (underground drilling rig).
  • the subject method is a method for erecting a drilling rig (underground drilling rig) for sinking deep wells, sometimes referred to below as wells for short, namely deep wells on hydrocarbon deposits or for the development of geothermal energy or other valuable materials or deep wells for research purposes, in a for example by means of a Tunnel boring machine in a tunnel excavated in a mountain range.
  • the lug includes a horizontal or at least substantially horizontal section.
  • This is referred to as a production tunnel.
  • the production tunnel or at least a section of the production tunnel acts as a production line when the drilling rig is set up and during subsequent drilling operations.
  • the terms "horizontal section of adit", “production adit” and “production line” mean the same thing.
  • a vertical section/shaft extends from the production adit. This is referred to here and in the following and to distinguish it from the production tunnel as a mast shaft.
  • This variant relates to a drilling rig (underground drilling rig) in which the drilling string is raised and lowered by means of a hoist belonging to the drilling rig and a block and tackle system.
  • the block and tackle system includes the crown bearing and a crown block there, as well as a vertically movable block hanging under the crown block, the so-called traveling block.
  • the crown block and the traveling block act as the upper block and lower block of the pulley system.
  • this also applies to the drilling rig proposed here (underground drilling rig).
  • the drill string hangs directly or indirectly on the bottom block.
  • the crown bearing must be at a certain height above the so-called drill floor so that drill rods or drill string trains - here and below collectively referred to as drill rod element or drill rod elements - can be used when installing and removing the drill string above the drill floor.
  • this can be related to the drill rod elements intended for use in drilling operations, namely a single drill rod (so-called single) or drill rods combined to form drill rod trains (so-called doubles, triples, etc.):
  • the Distance (height) of the crown bearing from the drill floor at least large enough that between the drill floor and the crown bearing in each case one of the drill rod elements provided for use in the drilling rig, the respective drive device for rotating the drill string (drill string drive unit), in the case of a drilling rig with a so-called top drive, i.e.
  • the top drive, and the pulley system can be accommodated.
  • the distance is increased by a margin of safety and mobility (a measure of safety and mobility) to allow mobility of said units above the drill floor.
  • margin of safety and mobility a measure of safety and mobility
  • These conditions also apply to the drilling rig proposed here (underground drilling rig).
  • the necessary height of the crown bearing is achieved by means of a drilling mast (derrick).
  • the drill mast also absorbs the forces (weight of the drill string) that act on the bit bearing and the drill mast when drilling directs the occurring forces directly or indirectly into the subsoil in the area of the drilling rig.
  • mast structure is then erected in the mast shaft and the conditions basically result as in previous drilling rigs.
  • wind loads and the like do not have to be taken into account, so that the mast of the underground drilling rig can be designed in a correspondingly simpler manner in terms of statics. Since the mast can be supported along the mast shaft, operation with longer drill rod trains (quadruple or quintuple trains) is also possible. As a result, a reduction in the so-called setback area is advantageously possible.
  • a reduction in the setback area is particularly advantageous in a narrow mast shaft.
  • Longer drill strings are also advantageous for the so-called trip speed.
  • What is essential, however, is that for the first time in an underground drilling rig there is the possibility of doing without a mast to absorb the forces acting on the crown bearing.
  • the crown bearing is fixed in the mast shaft itself, for example, basically at the same height as when using a drilling mast, and reference is made to the above statements regarding the necessary distance between the crown bearing and the drill floor (height of the crown bearing above the drill floor).
  • the mast shaft acts as a kind of mast.
  • Another possibility is to hang the crown bearing in the mast shaft, so to speak.
  • the forces acting on the crown bearing are then absorbed by the crown bearing suspension.
  • the suspension (at least a steel cable or the like) extends from the crown bearing to the surface (above ground) and the suspension can, for example, lead through a ventilation shaft or the like starting from the mast shaft. Above ground, the suspension ends, for example, in a foundation there. Alternatively, the crown bearing can also be suspended from the ceiling of the mast shaft.
  • Each of the two variants outlined (fixation of the crown bearing in the mast shaft for dissipating the forces into the mast shaft wall; suspension of the crown bearing in the mast shaft and absorption of the forces by the suspension of the crown bearing) belongs - as a fundamentally optional partial aspect - to the innovation proposed here. Both variants can also be combined and such a combination is also part of the innovation proposed here - as a fundamentally optional partial aspect.
  • the focus is on attaching the crown bearing at the necessary height, i.e. at a necessary distance from the drill floor of an existing or possibly later erected substructure of the drilling rig. Due to the possibilities of attaching the crown bearing without a drilling mast, which are also outlined above, the possible erection of a drilling mast takes a back seat and the erection of a drilling mast is only optional. If a drilling mast is erected, this is preferably done together with the lifting of the crown bearing in the mast shaft or as a subsequent process step after the crown bearing has been raised in the mast shaft.
  • the crown bearing is lifted out of the production tunnel into the mast shaft.
  • the crown bearing is fixed in the mast shaft.
  • the fixation is at least a vertical fixation (fixation in the direction of the vertical axis of the mast shaft).
  • the vertical fixation takes place at a distance from a ceiling of the production gallery. This distance corresponds at least to the length of at least one drill rod of the drilling rig.
  • the distance related to the ceiling of the production tunnel i.e. the height of the crown bearing in the tower shaft related to the ceiling of the production tunnel, is a definition of the height without reference to the drill floor of the drilling rig that may arise later.
  • the level of the drillfloor will be in the production tunnel between the floor of the production tunnel and its ceiling.
  • the definition of the distance of the bit bed from the production adit ceiling (the height of the bit bed above the production adit ceiling) in relation to the length of at least one drill rod of the drilling rig is correct, because the height corresponds at least the length of at least one boring bar.
  • the height can also be greater than the length of exactly one drill rod, for example if the use of so-called doubles (two drill rods; a drill string comprising two drill rods) or triples (three drill rods; a drill string comprising three drill rods) etc. (drill strings with more than three drill rods) is provided.
  • the height can also be greater than the length of at least one drill rod for the reason that there is space for a pulley system and, for example, a top drive.
  • This required additional vertical height of the crown bearing over and above the height required due to the length of the at least one drill rod is taken into account by defining the distance from the roof of the production adit (height of the crown bearing above the roof of the production adit) with the word "at least” - " at least the lengthtinct of a boring bar”.
  • An exact definition of the required height of the bit bearing (either above the ceiling of the production tunnel or above the level of the drill floor) is not possible for any variant of an underground drilling rig and the specific height depends, for example, on whether a topdrive is used to rotate the drill string or another drill string drive unit is used, how large is the minimum distance between the upper block (crown bearing/crown block) and the lower block (travelling block) of the pulley system on which, for example, the topdrive hangs, and so on.
  • the crown bearing in the mast shaft can be raised, for example, with ropes guided in the mast shaft and in a ventilation shaft adjoining the mast shaft and with a hoist placed above ground or another pulling or lifting unit.
  • Alternative, fundamentally optional options for raising the crown bearing in the mast shaft are described below.
  • the method step of raising the crown bearing in the mast shaft it also includes the method step of erecting an erecting structure in the production gallery and below the mast shaft. The crown bearing is then raised from the erecting structure and into the mast shaft.
  • the lifting construction creates defined and safe conditions for the positioning of the crown bearing before lifting and during lifting.
  • the advantage of the proposed innovation consists in the fundamental possibility of constructing a drilling rig underground and the simple possibility of constructing such a drilling rig by placing the crown bearing of the drilling rig in the vertical mast shaft extending from the production tunnel. Following the proposed lifting and fixing of the crown bearing in the mast shaft, the construction of the drilling rig is continued with method steps that are basically known per se (from land drilling rigs or offshore drilling rigs).
  • a further variant of the method proposed here for setting up a drilling rig relates to a drilling rig in which the drilling string is raised and lowered without a lifting gear and block and tackle system. Then a drive device for rotating the drill string (drill string drive unit), for example a top drive, is vertical by means of a drive device and/or a lifting device emotional.
  • a rack and pinion drive or an electromagnetic linear drive can be considered as the drive device for the vertical movement of the drill string drive unit.
  • a hydraulic cylinder in particular a telescoping hydraulic cylinder, can be considered, for example, as a lifting device for the vertical movement of the drill string drive unit.
  • Such drive or lifting devices as well as the movement sequences resulting during drilling operation during the vertical movement of the respective drill string drive unit are known per se, so that no further explanation is necessary here and reference is made to the prior art.
  • the method for constructing such a drilling rig underground cannot be defined with reference to a crown stock.
  • the method for erecting it in a tunnel driven into a mountain which comprises a horizontal section functioning as a production tunnel and production line, from which a vertical section branches off as a mast shaft, is characterized characterized in that a mast structure (drilling mast structure) is erected in the mast shaft and from the production tunnel into the mast shaft (i.e.
  • the mast structure includes the plurality of mast segments as interconnected or interconnectable mast segments. In the case of mast segments connected to one another, these are already connected to one another when the mast structure is erected connected, for example hinged together. In the case of mast segments that can be connected to one another, these are connected to one another at the latest after the mast structure has been erected.
  • the mast structure acts as a guide and torque support for a drill string drive unit, for example a topdrive.
  • the mast structure can carry a crown bearing in a fundamentally optional manner.
  • the crown bearing, the crown block there and the so-called traveling block and the block and tackle system formed with it then act as a lifting device for the respective drill string drive unit.
  • a drilling rig underground drilling rig
  • the crown bearing in the mast shaft is raised and the crown bearing is vertically fixed and on the other hand, the construction of the mast structure takes place in the mast shaft.
  • the crown bearing can be raised during the erection of the mast structure and by means of the mast structure, such that the mast structure carries the crown bearing and the crown bearing is also raised when the mast structure is raised into the mast shaft. Raising the crown bearing and raising the mast structure into the mast shaft can also be done independently. Then the crown bearing is first raised in the mast shaft and fixed there vertically, and then the mast structure is raised into the mast shaft. Then the crown bearing and the mast structure can be connected to each other.
  • the connection is effected of the crown bearing and mast structure, that the mast structure absorbs at least part of the forces later acting on the crown bearing during drilling operation.
  • the mast structure acts as a guide and/or as a torque arm for the respective drill string drive unit.
  • the crown camp and the Mast structures can also remain independent of each other, so that - as described above - the forces acting on the crown bearing during drilling operations are diverted, for example, into the mast shaft wall.
  • the mast structure then functions essentially only as a guide and/or as a torque support for the respective drill string drive unit.
  • the advantage of the proposed innovation is the fundamental possibility of erecting a drilling rig underground and the simple possibility of erecting such a drilling rig by erecting a mast structure comprising several mast segments in the vertical mast shaft starting from the production tunnel.
  • the erection of the drilling rig is continued with method steps that are essentially known per se (from land drilling rigs or offshore drilling rigs).
  • the erecting structure is successively supplied with mast segments in a horizontal orientation on an input side of the erecting structure, that by means of the erecting structure in the area at least one mast segment is erected in a vertical orientation into the mast shaft or at least pointing into the mast shaft on an output side of the erecting structure, and that when further mast segments are fed in on the output side, the or each mast segment that has already been vertically erected is raised into the mast shaft.
  • the total number of mast segments successively fed on the input side naturally depends on the desired height of the mast structure and, for example, for a height of a mast structure for a drilling rig, six mast segments are successively fed to the erection construction and for a height of the mast structure for another drilling rig, the erection construction for example eight or nine mast segments are fed.
  • the stated numerical values are expressly to be understood as examples only.
  • a first mast segment fed to the erecting construction is erected by means of the erecting construction and initially remains in the erected alignment in/on the erecting construction.
  • a second mast segment supplied to the erecting structure comes into contact with the first, already erected mast segment at the latest when it is being erected, and to a certain extent displaces it from its previous position. This displacement causes the first, already vertically erected mast segment to be lifted into the mast shaft. This is repeated when further mast segments are successively fed in and in the course of their erection by means of the erection construction.
  • a mast segment newly fed to the erection construction pushes all the mast segments previously fed to the erection construction in front of it and causes these—if they are already erected—to be lifted into the mast shaft.
  • a drive device is provided for this purpose, which temporarily acts on that mast segment which pushes all the other mast segments previously fed to the erecting structure in front of it.
  • the erection structure acts as a guide for the or each mast segment or for the or each mast segment and acts for the mast segments like a rail system or in the manner of a rail system. The process is repeated until all mast segments have been raised into the mast shaft.
  • the drive device can itself have a pushing effect and is then implemented, for example, in the form of a hydraulic or pneumatic cylinder.
  • An implementation with a rack and pinion drive or the like is also possible.
  • the drive device can have a pulling effect.
  • a realization of the drive device in the form of a hydraulic or pneumatic cylinder, a rack and pinion drive, a pulley system or the like can also be considered in this case.
  • the or each mast segment already erected by means of the erecting construction is raised by means of a lifting device.
  • a lifting device For example, a hydraulic or pneumatic cylinder, a rack and pinion drive, a pulley system or the like functions as a lifting device.
  • the lifting device acts on the mast segment erected by means of the erecting construction or on the last mast segment erected by means of the erecting construction. In the first case, the lifting device raises this mast segment. In the latter case, the lifting device lifts a plurality of mast segments, namely all mast segments erected by means of the erecting structure.
  • the lifting by means of the lifting device is carried out until there is space underneath the or each mast segment raised in this way for the erection of a further mast segment by means of the erection construction. Then the newly erected mast segment is fixed in the erection construction. This connects, for example, directly to the or each previously raised mast segment and supports this in the fixed configuration and by means of the erecting structure. Then the lifting device can be disengaged from the or each previously lifted mast segment and, for example, brought into a starting position.
  • the or each previously raised mast segment is lowered onto the mast segment fixed in the erecting structure by means of the lifting device, so that in the course of the lowering a load is transferred to the mast segment fixed in the erecting structure and the erecting structure.
  • the lifting device can then also be disengaged from the or each previously raised and then lowered mast segment and, for example, brought into a starting position.
  • the newly erected mast segment can then be raised by means of the lifting device together with the or each mast segment that has already been raised, and the process is repeated until all mast segments have been raised into the mast shaft.
  • the erection structure acts as a guide for the or each mast segment or for the or each mast segment and like a rail system or in the manner of a rail system.
  • the mast structure erected in this way (first variant or second variant) is fixed in the mast shaft and functions at least as a torque support and/or as a guide for the respective drill string drive unit, for example a top drive.
  • the fixation in the mast shaft takes place in the direction of the vertical axis of the mast shaft and transverse to the vertical axis of the mast shaft.
  • this mast structure also carries the crown bearing of the drilling rig, whereby - as already mentioned - the crown bearing can be raised by means of the mast structure or independently of the erection of the mast structure in the mast shaft.
  • the erecting structure includes two devices which are spaced apart and arranged parallel to one another and each carry a guide profile.
  • the devices included in the erecting structure, which are arranged parallel to one another, are intended together for erecting at least one mast segment for a "two-legged" mast structure or an at least "two-legged" ("three", four-legged or "multi-legged") mast structure and are described below accordingly referred to as risers.
  • each mast segment provided for this also has two parallel sections, which later become part of the vertical sections of the mast structure.
  • Each mast segment also has a strut between these parallel sections, which represent the strut of the later mast structure.
  • Each hoisting frame of the hoisting structure accommodates one of these parallel sections of the mast segments.
  • each erecting frame allows a mast segment fed to the erecting structure to move along the guide profiles and causes such a mast segment to be guided transversely to a longitudinal extent of the respective guide profile.
  • a U-profile or the like which is connected to the righting frame or is formed in the righting frame and is open at the top or the side, acts as a guide profile.
  • a U-profile as a guide profile, it is preferably provided that its bottom has a friction-reducing layer, for example in the form of sliding plates (sliding pads) made of plastic or metal.
  • a friction-reducing layer for example in the form of sliding plates (sliding pads) made of plastic or metal.
  • any other profile can be used to guide transversely to a longitudinal extension of the respective guide profile suitable profile into consideration, for example an I-profile, an L-profile, a T-profile and so on.
  • a friction-reducing layer of the type mentioned above is preferably provided in the area in which the mast segment moved along the guide profile comes into contact with the profile.
  • a first section of the guide profiles is located at a first end of the righting trestles. It is aligned horizontally there. This first end of the righting jacks acts as the entry side of the righting structure.
  • a second section of the guide profiles is located at a second end of the righting trestle, opposite the first end. It is aligned vertically there. The vertical sections of the guide profiles below the mast shaft point into the mast shaft. At least the second end of the righting trestles of the righting structure erected in the production tunnel is therefore below the mast shaft. This second end of the righting jacks acts as the exit side of the righting structure.
  • the two sections of the guide profiles are connected to one another along the raising trestles, so that a continuous guide profile results, or at least a continuous guide profile for the sections of the mast segments to be guided by means of the guide profiles.
  • the guide profiles of the two lifting frames act like a rail system for the mast segments when they move from the input side to the output side. They ensure the guidance of each individual mast segment when moving along the guide profiles - for example by means of a pulling or pushing drive device or by means of a lifting device as described above. They also ensure correct alignment and positioning of consecutive mast segments relative to one another.
  • the erection of the mast structure in the mast shaft and, accordingly, this aspect of the method for erecting a drilling rig (underground drilling rig) can also be briefly described as follows:
  • the erection of the mast structure in the mast shaft is carried out by means of the erecting construction, by in each case at least one mast segment on an input side of the is pulled or pushed in the horizontal direction and/or lifted (pushed up/pushed up) in the vertical direction on an exit side of the erection construction in or on the erection construction.
  • the method proposed here for erecting a drilling rig and individual embodiments of the method do not define or define the complete erection of the drilling rig.
  • the erection of a drilling rig includes many other individual procedural steps which are known per se and do not contribute to the present invention.
  • the method steps proposed here are used to erect a drilling rig or—in a different formulation—when erecting a drilling rig of the type proposed here.
  • method of erecting a drilling rig should also be read with every phrase "method of erecting a drilling rig", with a “method of erecting a drilling rig” being a partial aspect of a “method of erecting a drilling rig”.
  • the innovation proposed here is, for example, the device already mentioned and referred to as erecting construction for erecting a drilling rig of the type mentioned above underground, namely a device for erecting a mast structure of the drilling rig that comprises a plurality of mast segments that are or can be connected to one another. At least one mast segment can be fed to the erecting structure on an input side in a horizontal orientation.
  • a mast segment fed to the erecting structure on its input side is moved - for example by means of a corresponding drive device - through the erecting structure or along the erecting structure to an output side of the erecting structure and is guided by the erecting structure and is correspondingly through the erecting structure or along the erecting structure to a location there Output side guidable.
  • a mast segment guided there can be erected and brought into a vertical alignment with the vertical axis of the mast shaft.
  • the innovation proposed here is, for example, a mast structure of a drilling rig for drilling deep boreholes underground, namely a drilling rig with a mast structure, the mast structure comprising a plurality of mast segments that are or can be connected to one another and the mast structure is erected underground by in each case at least one mast segment being erected in a vertical orientation into the mast shaft or at least pointing into the mast shaft and the or each already erected mast segment being raised into the mast shaft by means of further mast segments.
  • the totality of the mast segments essentially determines the height of the mast structure.
  • FIG. 1 shows a drilling rig 10 underground (underground drilling rig 10) in a highly simplified schematic form.
  • the drilling rig 10 is erected underground in a horizontal tunnel, referred to here and below as production tunnel 12, from which a vertical shaft, referred to below as mast shaft 14, branches off.
  • At least one ventilation shaft 16 extending to the surface above ground extends from the mast shaft 14 in a fundamentally optional manner.
  • a base 18 of the production tunnel 12 is formed in order to obtain a level or at least substantially level installation surface, for example by heaping up excavated material and/or attaching a standing surface that functions as a base 18, which optionally rests on heaped up excavated material.
  • a mast structure 20 ( Figure 1A ) and a crown bearing 22 ( Figure 1B, Figure 1C ) shown.
  • a crown bearing 22 connected to the mast structure 20 can be located at the upper end of the mast structure 20, or a crown bearing 22 independent of the mast structure 20 or connected to the mast structure 20 can be located above the mast structure 20, as in FIG Figure 1B, 1C shown.
  • FIG. 1A The representations in Figure 1A, Figure 1B and Figure 1C use the respective arrows to illustrate the derivation of the forces acting during drilling operation, in particular due to the weight of the drill string 24 (or so-called casing pipes).
  • the forces due to the mast structure 20 standing directly or indirectly on the base 18 of the production gallery 22 are conducted into the subsoil.
  • the crown bearing 22 is to a certain extent suspended in the mast shaft 14 at a distance from the production gallery 12 .
  • the crown bearing 22 is fixed in the mast shaft 14 along its vertical axis and transversely to its vertical axis by means of struts 26 emanating from the crown bearing 22 and reaching to the wall of the mast shaft 14 (mast shaft wall).
  • the crown bearing 22 in a configuration connected to a mast structure 20 or individually and without a connection to a mast structure 20) by means of a suspension 28 extending from the surface above ground, through the ventilation shaft 16 and up to the crown bearing 22 in the mast shaft 14 at least along its vertical axis fixed.
  • An additional fixation transverse to its vertical axis can be in accordance with Figure 1B be provided.
  • figure 2 shows an isometric representation of a section of the production tunnel 12 and the mast shaft 14 extending from the production tunnel 12 in the vertical direction.
  • FIGs in figure 3 show - from different perspectives - a drilling rig 10 erected in a production tunnel 12 and a mast shaft 14 extending from it.
  • the representation in figure 4 shows this drilling rig 10 in the area of the production tunnel 12 and a section of the mast shaft 14 directly adjacent to the production tunnel 12 in a view along the longitudinal axis of the production tunnel 12.
  • the drilling rig 10 includes, in addition to the mast structure 20 and the crown bearing 22, a substructure 30 with the so-called drill floor 32 as the upper end of the substructure 30.
  • the mast structure 20 of the drilling rig 10 is a “two-legged” mast structure 20.
  • On the drill floor 32 a plurality of drill pipe elements 34 are placed next to the mast structure 20 . These are held in a manner known per se by means of at least one holding structure extending from the mast structure 20, in particular a holding structure in the form of or in the manner of a so-called finger platform 36.
  • Drill rod elements 34 are parked there next to the mast structure 20 in a manner that is basically known per se.
  • drill rod elements 34 are received there in a manner that is basically known per se and are connected to the drill string 24 .
  • the drill rod elements 24 placed next to the mast structure 20 are each drill rod elements 24 combined from five individual drill rods (quintuple stands). Drill rod elements 24 with more or fewer than five individual drill rods are also conceivable and usable, especially in a drilling rig 10 with a correspondingly adjusted height of the mast structure 20 and/or a correspondingly adjusted vertical position at least one support structure extending from the mast structure 20.
  • the movement of drill rod elements 34 from and to the position above the borehole underground as well as from and to the position next to the mast structure 20 is carried out in the drilling rig 10 shown as an example by means of a drill string drive unit, in particular a so-called top drive 38 that functions as a drill string drive unit and is basically known per se
  • the drill string drive unit ie the top drive 38 in the situation shown, can be moved vertically along the mast structure 20 in a manner that is basically known per se.
  • the drill string 24 is rotated during drilling operation in a manner that is basically known per se.
  • the vertical movement of the drill string drive unit takes place in a manner known per se by means of a lifting gear 40 ( figure 4 ) and a basically known pulley system comprising the crown bearing 22 as the top block.
  • a machine that is basically known per se for this purpose is arranged in the production gallery 12 and aligned with the longitudinal axis of the production gallery 12 .
  • a so-called catwalk machine 42 is shown.
  • blow-out preventer 44 is located below the drilling rig 10 above the borehole in a manner known per se.
  • the production tunnel 12 below the drilling rig 10 and in the area of the borehole is correspondingly widened (deepened) like a cellar.
  • the blow-out preventer 44 Similar to the way in which a section extending from the production gallery 12 and extending beyond the edge contour of the production gallery is provided for the blow-out preventer 44, as is shown in the illustration in figure 4 shows - for the elevator 40 an optional outgoing from the production tunnel 12 lateral space provided.
  • the arrangement of the elevator 40 shown here is only exemplary and can also assume alternative positions.
  • FIG. 5 The representations in figure 5 ( Figure 5A , Figure 5B , Figure 5C , Figure 5D ) show a section of the production tunnel 12 and a section of the mast shaft 14 leading from it, as well as a mast structure erecting construction intended for erecting the mast structure 20 in the mast shaft 14 and referred to here and below as erecting construction (erecting unit) 50.
  • the representations in figure 5 also illustrate a method of erecting this erecting structure 50, which may also be referred to as an erecting device.
  • the raising structure 50 comprises two (see Figure 5D ) righting frames 52 aligned side by side and parallel to one another.
  • Each righting frame 52 comprises a guide for segments of the mast structure 20 to be raised by means of the righting frames 52 and, as a guide, guide profiles 54.
  • the guide and the guide profiles 54 located there are subdivided into at least three sections which adjoin one another and function as a continuous guide. Based on the illustrations in Figure 5C and Figure 5D and the viewing direction there of the righting frame 52 or the righting frames 52, these are—seen from approximately bottom left to approximately top right—a horizontal section 56, preferably a horizontal section 56 aligned with a longitudinal axis of the production tunnel 12, an adjoining arc-shaped section and a vertical section 58 adjoining it in turn.
  • the vertical section 58 extends into the mast shaft 14 and with its total height above the ceiling of the production shaft 12 .
  • the vertical section 58 is therefore erected into the mast well 14 . This is shown in the illustrations in Figure 5A and Figure 5B .
  • the representation in Figure 5A shows a snapshot of a righting frame 52 with an initially lowered (horizontally oriented) vertical section 58. Only part of the vertical section 58 to be erected of the righting frame 52 is under the mast shaft 14.
  • the representation in Figure 5B shows the righting frame 52 in a snapshot Figure 5A with a partially erected vertical portion 58. Erecting is done, for example, by means a hydraulic cylinder or the like acting on the one hand on the righting frame 52 and on the other hand on a boom extending from the vertical section 58 or by means of a separate lifting device.
  • FIG. 5C shows the righting frame 52 in a snapshot Figure 5B with an erected vertical section 58.
  • the vertical section 58 adjoins the arcuate section of the guide and the result is a continuous guide with an inlet-side horizontal section 56, an adjoining arcuate section and an in turn adjoining outlet-side vertical section 58.
  • the raising frame 52 is also moved further under the mast shaft 14 to complete the erection of the vertical section 58 .
  • FIG. 5C The situation shown shows that the righting frame 52 has already been partly moved beyond the area with the mast shaft 14.
  • the vertical section 58 protrudes into the mast shaft 14 and a longitudinal axis of the vertical section 58 is aligned with a vertical axis of the mast shaft 14.
  • FIG Figure 5B and Figure 5C it can be seen that the righting frame 52 has been moved "further to the right", ie further under the mast shaft 14 and partly beyond the area with the mast shaft 14 .
  • the representation in Figure 5D shows two righting stands 52 placed next to each other, each with upright vertical sections 58 as in FIG Figure 5C .
  • the representation in Figure 5D also shows a fundamentally optional extension of the horizontal sections 56 in front of the erecting stands 52 and aligned with a longitudinal axis of the production tunnel 12.
  • the representation in Figure 5D (but also other illustrations) also shows an optional crane system in an area above the horizontal sections 56 in front of the righting frames 52. This is attached to the ceiling of the production tunnel 12, for example. means
  • Such a crane system or a similar one can be placed on the horizontal sections 56 in front of the righting frames 52, for example in the production gallery 12 by means of a vehicle or the like that is driving there.
  • a crane system of this type or a similar one can optionally also or alternatively be used in other ways, for example to lower the BOP 44 into the area of the production tunnel 12 that is recessed like a cellar.
  • the designation of the individual sections 56, 58 of the guide as input side and output side refers to a direction of movement of segments of the mast structure 20 when erecting the mast structure 20 along the guide and thus overall in the erecting structure 50.
  • the erection of the mast structure is in figure 6 shown.
  • the representations in figure 6 show snapshots during the erection of the mast structure 20 of a drilling rig 10 according to FIG figure 3 and figure 4 .
  • the mast structure 20 is a "two-legged" mast structure 20 and is formed from individual mast segments 60 which are connected or can be connected to one another.
  • the "two-legged" mast structure 20 is only selected here as an example and can also have other embodiments, in particular a multi-leg mast structure 20 with three or more legs is possible, in which two adjacent legs form a support surface for placement in the erecting structure 50 .
  • the representation in Figure 6A shows a snapshot with a first mast segment 60 placed in the righting structure 50.
  • the mast segment 60 is placed in the area of the horizontal section 56 of the guide profiles 54 of the righting frames 52 (entrance side of the righting structure 50), here even in the area of the extension in front of the horizontal sections 56, for example on the local guide profiles 54.
  • the mast segment 60 placed on the guide profiles 54 includes the crown bearing 22.
  • This mast segment 60 is later the uppermost segment of the mast structure 20 when the mast structure 20 is erected, so that the crown bearing 22 is raised together with the erection of the mast structure 20.
  • the mast structure 20 is erected into the mast shaft 14 and with this erection the crown bearing 22 is also raised into the mast shaft 14 .
  • the crown bearing 22 is located at the top of the mast structure 20, i.e. in the area of the highest point of the mast structure 20.
  • a crown bearing 22 connected to a mast segment 60 is only an option and that erecting the mast structure 20 does not depend on whether a crown bearing 22 is connected to one of the mast segments 60 .
  • the crown bearing 22 is therefore no longer considered for the further description of the erection of the mast structure 20 .
  • a crown bearing 22 connected to a mast segment 60, in particular a crown bearing 22 connected to the first mast segment 60 placed on the erecting structure 50, and a crown bearing 22 raised when the mast structure 20 was erected are always to be read in the further description.
  • FIG. 6B shows a snapshot with a compared to the situation in Figure 6A along the raising structure 50 and the guide profiles 54 of the raising trestles 52, namely a mast segment 60 which is moved further in the direction of the arcuate sections adjoining the horizontal sections 56.
  • This movement takes place automatically or semi-automatically by means of a drive device not shown in the illustrations.
  • a drive device engages - as described above - for example in a pulling or pushing manner on the mast segment 60 and causes the movement along the guide profiles 54 of the righting frames 52 and thus overall along the righting structure 50 are mentioned above.
  • FIG. 6C shows the righting structure 50 and its righting trestles 52 as in FIG Figure 6A and Figure 6B , whereby now on the guide profiles 54 of the raising trestles 52 (and here partly also on the guide profiles 54 of Extension in front of the righting trestles 52) two more mast segments 60 are placed.
  • the previously described in the description of the representation in Figure 6B The aforementioned drive device acts on one of these new mast segments 60, in particular on the last new mast segment 60, and causes it to move along the guide profiles 54 in the direction of the vertical sections 58.
  • the mast segment 60 moved with the drive device pushes each mast segment in front of this mast segment in the direction of movement 60 situated mast segment 60 in front of him.
  • Which new mast segment 60 or which new mast segments 60 in the case of a plurality of new mast segments 60 is or are being moved along the erecting structure 50 by means of the drive device depends on the position of the drive device relative to the erecting structure 50 and also depends, for example, on whether the Mast segments 60 or at least the new mast segments 60 are connected to each other, for example - as shown - are hinged to each other.
  • the drive device which acts on a mast segment 60 placed in the area of the entry side of the erecting structure 50, preferably works in a clocked manner and moves, for example in the area of the entry side, i.e. in the area of the horizontal sections 56, alternately back and forth by a predetermined distance , in particular a section whose length is at least slightly greater than the length of a mast segment 60.
  • Each mast segment 60 comes into the effective range of the drive device as a result of being placed in the erecting structure 50 , is seized by the drive device, for example by a driver moved by the drive device, and is then moved in the direction of the vertical sections 58 .
  • FIG. 6D shows another snapshot during the erection of the mast structure 20 in the mast shaft 14.
  • another mast segment 60 has been erected and brought into a vertical alignment with the vertical axis of the mast shaft 14.
  • Struts 26 emanating from the mast segment 60 can be seen on the first, previously erected mast segment 60 , which brace the mast segment 60 and thus the mast structure 20 as a whole against the mast shaft 14 .
  • These struts 26 ensure that the mast structure 20 remains upright as the mast structure 20 is erected further in the mast shaft 14 and does not lean against the side wall of the mast shaft 14 .
  • the struts 26 support the mast structure 20 when it is erected and/or during subsequent drilling operations.
  • the mast structure 20 can be additionally or alternatively supported in the mast shaft 14 by bracing the mast structure 20 in the mast shaft 14 with steel cables or the like or by means of additional struts (not shown) along the mast structure 20 .
  • additional struts not shown along the mast structure 20 .
  • a group of struts two or more starting from the mast structure 20 and up to the mast shaft wall reaching struts into consideration.
  • Such a group of struts can emanate from each mast segment 60 of the mast structure 20 or from every second or every third or every fourth mast segment 60 of the mast structure 20 .
  • the struts 26 are shown as rigid struts 26 extending radially from a vertical axis of the mast structure 20 and reaching to a section of the side wall of the mast shaft 14, at the free ends of which are intended for contact with the mast shaft 14 a roller or the like is located.
  • Rigid struts 26 in the area of the crown bearing 22 and/or along the entire mast structure 20 with rollers or the like at their ends can be considered for a cylindrical or at least essentially cylindrical mast shaft 14, at least for a mast shaft 14, its geometry and its dimensions are known and do not change significantly along its vertical axis.
  • each strut 26 is then matched to the respective distance from the starting point of the strut 26 on the mast segment 60 to the mast shaft wall.
  • the length is of course determined in the direction of the intended orientation of the strut 26 in each case.
  • a roller or the like at the end of a strut 26 dimensioned in this way is preferably resiliently or elastically mounted in some other suitable manner for the purpose of tolerance compensation.
  • a waiver of the struts 26 (in the area of the crown bearing 22 and/or along the entire mast structure 20) is also conceivable.
  • the mast structure 20 is designed to be free-standing in the mast shaft 14 .
  • a downhole drilling rig 10 having a free-standing mast structure 20 is contemplated as encompassed by the description herein and any mention of a mast structure 20 erected in mast shaft 14 includes one supported in mast shaft 14 by struts 26 or the like and/or one by means of bracing or the like to read a mast structure 20 fixed in the mast shaft 14 and/or a free-standing mast structure.
  • the struts 26 struts 26 in the area of the crown bearing and/or struts 26 along the entire mast structure 20—can be automatically telescoped along their longitudinal axis.
  • the automatic telescoping takes place, for example, by means of a control which processes a signal from an inclination sensor (not shown) on the mast structure 20, in particular an inclination sensor on that mast segment 60 from which the respective strut 26 originates.
  • Automatic telescoping is advantageous if the mast shaft wall has an irregular surface. If such a strut 26 comes into contact with its free end with an inwardly curved section of the mast shaft wall, the strut 26 with its current length pushes the mast structure 20 to a certain extent to the side, so that it becomes inclined with respect to the vertical. This inclination can be detected by means of the inclination sensor and a sensor signal encoding the resulting inclination can be used to automatically adjust the length of the strut 26 . In the event of contact with an inwardly curved section of the mast shaft wall, this regulation leads to a shortening of the length of the strut 26. The lateral pressure on the mast structure 20 due to the strut 26 previously being too long for this section of the mast shaft 14 thus disappears.
  • such a regulation can also be superimposed with an automatic detection of a continuously existing contact of the free end of each strut 26 with the mast shaft wall.
  • a roller that is, for example, spring-mounted at the end of a strut 26 is connected to a sensor, for example a button, placed along the spring travel.
  • the sensor for example a button
  • FIG. 6E , Figure 6F and Figure 6G show further snapshots during the erection of the mast structure 20 by means of the erection construction 50 and into the mast shaft 14.
  • the representation in Figure 6G 12 shows a mast structure 20 having a height suitable for drilling operations (a height adapted to the length of drill string members 34 intended for use in drilling operations).
  • This height is achieved in that, when the mast structure 20 is erected by means of the erecting structure 50, mast segments 60 are fed to it on its input side, which push previously supplied mast segments 60 in front of them in the erecting structure 50, so that mast segments 60 that were originally supplied horizontally by means of the erecting structure 50 in Area of the output side are erected (are brought into alignment with the vertical axis of the mast shaft s14 orientation) and leave the erecting structure 50 there and erected mast segments 60 are raised into the mast shaft 14 inside.
  • a top drive 38 is also already shown in the mast structure 20 .
  • This hangs in a manner known per se on the pulley system emanating from the crown bearing 22 and is guided by the mast structure 20 (function of the mast structure 20 as a torque support and function of the mast structure 20 for guiding and centering the topdrive 38 above the borehole).
  • the mast structure 20 is designed, for example, with opposite and facing profiles, for example U-profiles. Rollers and/or sliding shoes or the like running from the top drive 38 run in such profiles.
  • the top drive 38 is thus vertically movable along the mast structure 20 and in the profiles there (in a manner which is basically known per se).
  • an upper end of the mast shaft 14 is shown as a disk.
  • This disk represents—schematically simplified—a closure of the mast shaft 14 to the surface (a closure of the mast shaft to the area above ground).
  • This disk is shown with an opening.
  • This opening represents - also schematically simplified - a ventilation shaft 16 (not designated in the figures mentioned; see, for example 1 ).
  • FIG 7 shows an enlargement of the upper end of a mast structure 20 erected by means of the erecting structure 50 and according to the method described above.
  • a mast segment 60 here a mast segment 60 with the crown bearing 22, forms the upper end of the mast structure 20.
  • support the mast structure 20 shows a configuration with exactly three struts 26 in the mast shaft 14 (during the drilling operation and beforehand when erecting the mast structure 20).
  • One of these struts 26 is oriented on one side of the plane defined by the mast structure 20 transverse to this plane.
  • the invention relates to an underground drilling rig 10 (drilling rig 10 for deep drilling underground) and a method for setting it up.
  • a crown bearing 22 of the drilling rig 10 is raised into a vertical shaft (mast shaft 14) extending from the installation site (production tunnel 12) (raised starting from the production tunnel 12 into the tower shaft 14; i.e. "from bottom to top ").
  • This lifting takes place either alone, in that only the crown bearing 22 in the mast shaft 14 is raised, or in that the crown bearing 22 is raised by means of the mast structure 20 when erecting a mast structure 20 of the drilling rig.
  • one embodiment of the method provides an erecting construction 50, which takes into account the fact that the mast structure 20 cannot be brought upright to the installation site of the drilling rig 10 in the production tunnel 12 and rather only assembled on site (underground). must.
  • the mast structure 20 is erected starting from the production tunnel 12 into the vertical mast shaft 14, ie "from the bottom up”.
  • the invention also relates to this erecting construction 50, a method for its operation, i.e.
  • the mast structure 20 can carry and/or lift a crown bearing 22.
  • a drilling rig 10 with such a mast structure 20 and without a crown bearing 22 is also possible.

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  • Geochemistry & Mineralogy (AREA)
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Claims (11)

  1. Procédé pour le montage d'un appareil de forage (10) pour le forage sur des gisements d'hydrocarbures ou pour le développement de la géothermie ou d'autres matières de valeur ou à des fins de recherche dans un tunnel creusé dans les montagnes, qui comprend une section horizontale fonctionnant en tant que galerie de production (12) et ligne de production, et de qui branche une section verticale fonctionnant comme puits de mât (14), caractérisé par les étapes de processus suivantes:
    Montage d'une structure de mât (20) dans le puits de mât (14) au moyen d'une structure de redressement (50) dans la galerie de production (12),
    où la structure du mât (20) comprend une pluralité de segments de mât (60) inter-connectés ou qui peuvent être reliés entre eux,
    où successivement des segments de mât (60) sont alimentés à la structure de redressement (50) sur un côté entrée de la structure de redressement (50) dans un plan horizontal ou au moins dans une orientation sensiblement horizontale,
    où grâce à la structure de redressement (50) chaque fois au moins un segment de mât (60) sera porté sur un côté sortie de la structure de redressement (50) en un alignement vertical ou au moins sensiblement vertical dans le puits de mât (14) ou au moins pointant dans le puits de mât (14) et qui sera ainsi dressé et
    où lors de l'alimentation d'autres segments de mât (60) du côté entrée de la structure de redressement (50) le ou chaque segment de mât (60) déjà dressé verticalement au côté sortie de la structure de redressement (50) sera relevé dans le puits de mât (14).
  2. Procédé selon la revendication 1, où la structure de redressement (50) possède deux supports de redressement (52) disposés parallèlement les uns aux autres avec une certaine distance entre eux et où chaque support de redressement (52) porte un profile de guidage (54) pour des segments de mât (60),
    où une première section (56) des profils de guidage (54) est alignée sur une première extrémité des supports de redressement (52) horizontalement ou du moins dans une façon sensiblement horizontale,
    où une deuxième section (58) des profils de guidage (54) sur une seconde extrémité opposée à la première extrémité des supports de redressement (52) est orientée verticalement ou au moins sensiblement verticalement,
    où les parties verticales ou au moins sensiblement verticales (58) des profiles de guidage (54) sous le puits de mât (14) pointent dans le puits de mât (14),
    où chaque fois un segment de mât (60) de la structure de redressement (50) dans la zone des premières sections (56) des profiles de guidage (54) s'y trouvant sera transféré et est guidé dans les profiles de guidage (54) et
    où le segment de mât (60) transféré est transporté le long des profils de guidage (54) et sera dressé dans la zone des secondes sections (58) des profiles de guidage (54) s'y trouvant au moyen des secondes sections (58) des profiles de guidage (54).
  3. Procédé selon la revendication 1 ou 2,
    où les segments de mât (60) sont reliés entre eux de manière flexible.
  4. Procédé selon l'une des revendications précédentes,
    où le montage de la structure de mât (20) dans le puits de mât (14) a lieu au moyen de la structure de redressement (50) en ce que chaque fois, au moins un segment de mât (60) sera tiré ou poussé dans la structure de redressement (50) dans une direction horizontale ou au moins sensiblement horizontale et/ou sera relevé dans le sens vertical ou au moins sensiblement dans la direction verticale.
  5. Procédé selon l'une des revendications précédentes,
    où le palier de couronne (22) est relevé au moyen de la structure de mât (20) dans le puits de mât (14).
  6. Procédé selon l'une des revendications précédentes,
    où le palier de couronne (22) est relevé au moyen d'un appareil de levage dans le puits de mât (14).
  7. Procédé selon la revendication 5 ou 6,
    où le palier de couronne (22) est fixé dans le puits de mât (14) de façon transversale à un axe vertical (14) du puits de mât (14) et
    où cette fixation se fait au moyen d'au moins une entretoise (26) agissant comme entretoise de fixation du palier de couronne, qui à partir du palier de couronne (22) s'étend jusqu'à la paroi du puits de mât (14).
  8. Dispositif pour le montage d'un appareil de forage (10) pour le forage sur des gisements d'hydrocarbures ou pour le développement de la géothermie ou d'autres matières de valeur ou à des fins de recherche dans un tunnel creusé dans les montagnes, qui comprend une section horizontale fonctionnant en tant que galerie de production (12) ou ligne de production, et de qui branche une section verticale fonctionnant comme puits de mât (14),
    où le dispositif fonctionne en tant que structure de redressement (50) pour une structure de mât (20) de l'appareil de forage (10),
    où la structure de mât (20) comprend une pluralité de segments de mât (60) inter-connectés ou qui peuvent être reliés entre eux,
    où sur un côté entrée au moins un segment de mât (60) pourra être alimenté à la structure de redressement (50) dans une direction horizontale ou au moins sensiblement horizontale,
    où un segment de mât (60) alimenté à la structure de redressement (50) pourra être guidé du côté entrée de celle-ci à travers la structure de redressement (50) ou le long de la structure de redressement (50) jusqu'à un côté sortie de la structure de redressement (50),
    où le segment de mât (60) peut être érigé dans la zone du côté sortie et est apporté dans un alignement vertical ou au moins sensiblement vertical, de manière à pointer dans l'intérieur du puits de mât (14),
    où un segment de mât (60) qui a été guidé à travers la structure de redressement (50) ou le long de la structure de redressement (50) pousse à son tour chaque segment de mât (60) qui a été auparavant alimenté à la structure de redressement (50) à travers la structure de redressement (50) ou le long de la structure de redressement (50) devant lui-même et,
    où au moyen d'un segment de mât (60) dressé au moyen de la structure de redressement (50) chaque segment de mât (60) déjà dressé avec la structure de redressement (50) peut être élevé dans le puits de mât (14).
  9. Dispositif selon la revendication 8,
    où la structure de redressement (50) possède deux supports de redressement (52) disposés parallèlement les uns aux autres avec une certaine distance entre eux et
    où chaque support de redressement (52) porte un profile de guidage (54),
    où une première section (56) du profil de guidage (54) est alignée sur une première extrémité des supports de redressement (52) horizontalement ou du moins dans une façon sensiblement horizontale,
    où une deuxième section (58) des profils de guidage (54) est orientée sur une seconde extrémité opposée à la première extrémité des supports de redressement (52) verticalement ou au moins sensiblement verticalement,
    où les parties verticales ou au moins sensiblement verticales (58) des profiles de guidage (54) sous le puits de mât (14) pointent dans l'intérieur de le puits de mât (14).
  10. Structure de mât (20) d'un appareil de forage (10) pour le forage sur des gisements d'hydrocarbures ou pour le développement de la géothermie ou d'autres matières de valeur ou à des fins de recherche dans un tunnel creusé dans les montagnes, qui comprend une section horizontale fonctionnant en tant que galerie de production (12) et ligne de production et de qui branche une section verticale fonctionnant comme puits de mât (14),
    où la structure de mât (20) a été construite par un procédé selon l'un quelconque des revendications 1 à 7 et/ou au moyen d'un dispositif selon l'une des revendications 8 ou 9.
  11. Dispositif de forage (10) pour le forage sur des gisements d'hydrocarbures ou pour le développement de la géothermie ou d'autres matières de valeur ou à des fins de recherche dans un tunnel creusé dans les montagnes, qui comprend une section horizontale fonctionnant en tant que galerie de production (12) et ligne de production, de qui branche une section verticale fonctionnant comme puits de mât (14), et avec une structure de mât (20) selon la revendication 10.
EP20757547.3A 2019-08-13 2020-08-10 Installation de forage souterraine et son procédé de mise en place Active EP4013949B1 (fr)

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DE102019212152.7A DE102019212152A1 (de) 2019-08-13 2019-08-13 Untertage-Bohranlage und Verfahren zu deren Errichtung
PCT/EP2020/072381 WO2021028383A1 (fr) 2019-08-13 2020-08-10 Installation de forage souterraine et son procédé de mise en place

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US2331072A (en) * 1941-01-24 1943-10-05 Carl E Cameron Method and means of developing oil fields
US2989294A (en) * 1956-05-10 1961-06-20 Alfred M Coker Method and apparatus for developing oil fields using tunnels
US4436455A (en) * 1980-04-23 1984-03-13 Vance Ershell C Universally positionable low profile mine drilling machine and method
DE102008006392A1 (de) * 2008-01-28 2009-07-30 Herrenknecht Vertical Gmbh Verfahren und Vorrichtung zum Erstellen einer Tiefbohrung
US8353132B1 (en) * 2010-04-30 2013-01-15 Woolslayer Companies, Inc. Method and apparatus for erection and disassembly of a sectional mast assembly
CA2933381C (fr) * 2013-12-17 2019-03-05 Sandvik Mining And Construction Oy Agencement et procede pour utiliser des informations de forage de roche

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