DE102010015466C5 - An earth boring apparatus and method for supplying an earth boring device with a drilling fluid - Google Patents

An earth boring apparatus and method for supplying an earth boring device with a drilling fluid Download PDF

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Publication number
DE102010015466C5
DE102010015466C5 DE102010015466.0A DE102010015466A DE102010015466C5 DE 102010015466 C5 DE102010015466 C5 DE 102010015466C5 DE 102010015466 A DE102010015466 A DE 102010015466A DE 102010015466 C5 DE102010015466 C5 DE 102010015466C5
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Prior art keywords
drilling fluid
conveyor
drive
erdbohrvorrichtung
drill
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DE102010015466.0A
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German (de)
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DE102010015466B4 (en
DE102010015466A1 (en
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Joachim Schmidt
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Tracto-Technik GmbH and Co KG
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Tracto-Technik GmbH and Co KG
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Publication of DE102010015466B4 publication Critical patent/DE102010015466B4/en
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    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B21/00Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/01Arrangements for handling drilling fluids or cuttings outside the borehole, e.g. mud boxes
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B15/00Supports for the drilling machine, e.g. derricks or masts
    • E21B15/04Supports for the drilling machine, e.g. derricks or masts specially adapted for directional drilling, e.g. slant hole rigs
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00Special methods or apparatus for drilling
    • E21B7/02Drilling rigs characterized by means for land transport with their own drive, e.g. skid mounting or wheel mounting

Abstract

An earth drilling device comprising a drive device and a drill string which consists of individual interconnected rod sections (6) and is hollow for transporting a drilling fluid, a catch pan for drilling fluid emerging from the drive device and / or the drill pipe, and a drain integrated into the catch pan ( 16) are provided for the drilling fluid, characterized in that the collecting tray is formed as an anchor plate (10) with a contact surface formed on the ground bearing surface, wherein a conveyor for removing the drilling fluid from the sump present and integrated the conveyor into the sump is.

Description

  • The invention relates to an earth boring device having a drive device and a drill pipe, which consists of individual interconnected rod sections and which is hollow for the transport of a drilling fluid, and a method for supplying a Erdbohrvorrichtung with a drilling fluid, wherein the drilling fluid from a Bohrflüssigkeitsquelle to a hollow , is provided for the transport of the drilling fluid provided drill pipe.
  • When drilling holes in the ground, it is often necessary to provide a drill head, which is arranged at a front end of a sliding and rotationally driven drill string, with a drilling fluid. The drilling fluid serves to lubricate the drill head, soften the soil lying in front of the drill head and thereby improve the cutting action of the drill head, flush out the drill bit removed from the drill bit from the already created hole and / or stabilize the wall of the already created hole. As drilling fluid is regularly a bentonite-water mixture is used, the other additives can be added.
  • In the majority of known Erdbohrvorrichtungen is provided to use the then hollow running drill pipe to supply the burial head located in the ground with the drilling fluid. The rear end of the drill string is then connected to a well fluid source, which may include a pump, and in particular a high pressure pump, through which the drilling fluid is transported through the drill pipe to the drill head and discharged therefrom under high pressure.
  • Horizontal drilling devices are used to introduce holes in a substantially horizontal direction or with an inclination angle of less than 90 ° in the ground. They are often used to install trenchless pipes, such as fresh or sewer pipes, and supply cables, such as for power and telecommunications, in the ground. Also, horizontal boring devices are used in pipe rehabilitation, where existing piping and supply cables are replaced.
  • Horizontal drilling devices regularly have a drive carriage, which can be adjustable in terms of its inclination angle and in which the rearmost linkage of the existing of a plurality of interconnected rod sections Bohrgestängestrangs is connected to a drive carriage. The drive carriage executes a drive stroke on the drive carriage, in which the drill pipe is driven in the ground. In general, the drive carriage also has a rotary drive in order to simultaneously drive the drill pipe rotating during the propulsion. After completing a drive stroke, the rearmost linkage is released from the drive carriage and the drive carriage is moved backwards (idle stroke). After this idle stroke, a new rod section can be inserted into the drive carriage and connected to the then free end of the previously rearmost linkage.
  • While the drill pipe is being continuously extended during drilling by the attachment of a new rod assembly, after the (pilot) bore has been formed and while a new pipe is being retracted, for example, a continuous reduction of the drill string is performed by each drill stroke with which the drill string is displaced Linkage length was pulled out of the ground, a shortening of the drill string by removing the respective rearmost rod section is done.
  • When adding or removing a linkage to or from the drill pipe, there is regularly a leakage of a more or less large amount of drilling fluid, which contaminates the drive carriage and the environment, despite an interrupted drilling fluid supply. In particular, the removal of a drill string during the retraction of the drill string is associated with significant contamination, since the unscrewed rod assembly is regularly filled with drilling fluid, which then flows out of gravity due to this. So far, the pollution of the drive carriage and the environment is accepted and subjected to the drive carriage after completion of drilling an intensive cleaning. However, this is associated with a considerable time and thus cost. Furthermore, the highly abrasive drilling fluid leads to increased wear of soiled moving parts of the auger.
  • US 5,228,506 A discloses an auger device having a drive device and a drill string that may be configured from discrete interconnected rod sections and hollowed to carry a drilling fluid, with a catch pan for collecting spilled fluids and cuttings. In the drip tray, a drain is integrated through which the fluids and cuttings can reach a storage tank.
  • US 4,493,382 A discloses an earth boring device with a drive device and a drill pipe, which consists of individual interconnected rod sections and for the Transport of a drilling fluid is hollow. It is provided a drip pan for emerging from the drive device or the drill pipe drilling fluid, wherein in the drip pan, an integrated drain for the drilling fluid is arranged for Bohrpfammauffangsystem.
  • US 5,121,796 A discloses an earth boring device having a drive device and a drill string which consists of individual interconnected rod sections and is hollow for transporting a drilling fluid. Furthermore, a collecting trough is provided for emerging from the drill pipe drilling fluid, wherein in the collecting trough an integrated drain is formed with a pipe socket.
  • WO 2010/005522 A1 discloses an earth boring device having a drive device and a drill pipe, which consists of individual interconnected rod sections and for the transport of a drilling fluid, in particular water, is hollow. There is provided a drip pan for drilling fluid emerging from the drill pipe, wherein a hose with a pump is described for draining or conveying the water collected in the drip pan. To support the Erdbohrvorrichtung rearwardly disposed support means are lowered.
  • Based on this prior art, the present invention seeks to provide a Erdbohrvorrichtung and a method for supplying a Erdbohrvorrichtung with a drilling fluid in which / with a simple structure contamination of the Erdbohrvorrichtung and the environment does not or only to a lesser extent occurs and a support is guaranteed.
  • This object is solved by the subject matters of the independent claims. Advantageous embodiments of the Erdbohrvorrichtung invention and the method according to the invention are the subject of the respective dependent claims and will become apparent from the following description of the invention.
  • The idea underlying the invention is to catch the drilling fluid emerging from the earth boring device and in particular the drill pipe by suitable means and measures and to discharge it from the area of the earth boring device.
  • An earth boring device according to the invention therefore has a drive device and a drill rod, which consists of individual, interconnected rod sections, which are preferably connected to each other in the region of the drive device and / or detached from each other, wherein the drill pipe is hollow for the transport of a drilling fluid. According to the invention, the Erdbohrvorrichtung also has a drip tray for emerging from the Erdbohrvorrichtung drilling fluid into which a drain for the drilling fluid is integrated.
  • The Erdbohrvorrichtung has a conveyor through which the drilling fluid can be removed from the sump. Such a conveying device is particularly useful when the drilling fluid has been stirred relatively highly viscous and therefore does not drain or only by itself and / or when the drilling fluid source or another container in which the collected and discharged drilling fluid is collected , is arranged above the drip tray.
  • Furthermore, it is provided that the conveyor is integrated into the drip pan. Connecting an external conveyor can be avoided.
  • A method according to the invention for supplying an underground drilling apparatus with a drilling fluid is claimed in claim 7, which provides for pumping the drilling fluid from a drilling fluid source to a hollow drill pipe intended for transporting the drilling fluid, thereby collecting and discharging the drilling fluid drained from the drill string.
  • Due to the inventive design of a Erdbohrvorrichtung or by the inventive method pollution of Erdbohrvorrichtung and the environment can be effectively prevented or at least reduced, the drip pan of Erdbohrvorrichtung invention is designed as an anchor plate, what this with a trained for a support on the ground support surface is trained. Often, anchor plates are provided on drilling devices, and in particular horizontal drilling devices, to ensure a secure footing on the ground, especially when softened.
  • The collected drilling fluid may preferably be transported back to the drilling fluid source, which not only prevents contamination of the augering device and the environment, but additionally reduces the overall consumption of drilling fluid for the work to be performed since there is little or no loss.
  • Optionally, it may be useful to prepare the collected drilling fluid before it gets back into the Bohrflüssigkeitsquelle. This can prevent that this is contaminated with foreign objects, such as lumps of earth or stones, which may damage a pump of the Bohrflüssigkeitsquelle example.
  • Of course, it is also possible to dispose of the drilling fluid after collecting and discharging (directly).
  • Preferably, the drip pan can be arranged at one end of a drill carriage carrying the drive carriage, so that the drilling fluid emerging from the drive device or the drill pipe is guided along the regularly inclined aligned drive carriage along to the drip pan.
  • Further preferably, the Erdbohrvorrichtung invention and in particular the drive carriage may be provided with a guide element, for example in the form of a guide plate, which is preferably disposed over the entire length below located within the drive device portion of the drill string and that of the drive device or the Drill pipe discharges drilling fluid into the drip pan.
  • An integration of a conveyor into the drip pan can be effected, for example, by arranging the conveyor within a drip volume formed by the drip pan and consequently pushing out the drilling fluid located within the drip volume through the drain. In this case, the conveyor may preferably be designed as a screw conveyor. A screw conveyor can be used advantageously in particular if a relatively high-viscosity drilling fluid is used.
  • Otherwise, the conveyor may be in the form of any (suitable for the transport of a drilling fluid) conventional feed pump can be arranged both in a trained by the sump collection volume and thus can work as a submersible pump, as well as outside the sump can be arranged and thus can work as a suction pump.
  • Preferably, it can be provided to provide the integration of the conveyor into the drip pan so that the respective conveyor is easily replaceable. This makes it possible to easily adapt the earth boring device according to the invention to different drilling fluids, for example to use a screw conveyor, when a highly viscous drilling fluid is used and at a low viscosity drilling fluid to convey it off via a pump of conventional design.
  • The invention further relates, in isolated form, to a collecting trough of an earth boring device according to the invention with the previously discussed, essential to the invention or preferred features.
  • The invention will be explained in more detail with reference to embodiments shown in the drawings.
  • In the drawings shows:
    • 1 an earth boring device according to the invention;
    • 2 a formed as a collecting trough anchor plate in a first embodiment for use with the Erdbohrvorrichtung according to 1 ;
    • 3 a tray formed as an anchor plate in a second embodiment for use with in the 1 illustrated Erdbohrvorrichtung.
  • The 1 shows an earth boring device according to the invention. This includes a drive carriage 1 , which - adjustable in inclination - on a chassis 2 is arranged. The drive carriage 1 includes a drive carriage 3 standing on a guide rail 4 the drive carriage 1 (in the longitudinal axial direction) is displaceably guided. On the drive carriage 3 is a rotary drive 5 arranged in the form of a hydraulic motor. The drive shaft of the rotary drive 5 is provided with an external thread, which in a threaded bushing at the rear end of a rod held in the drive carriage rod 6 a drill pipe is screwed.
  • The drill pipe serves on the one hand to transmit compressive and tensile forces and a torque to a drilling or pulling head, which is arranged at the front end of the drill string. Furthermore, the drill pipe, which is hollow, also serves to supply a drilling fluid to the drill head. For this purpose, the drill pipe or the individual rod sections from which this is provided with a longitudinal axial through hole. From a drilling fluid source, not shown, the drilling fluid is the rotational drive 5 fed. In the rotary drive, the drilling fluid is then in the boom section 6 or the drill pipe initiated.
  • The drive carriage 3 is moved by means of a linear drive along the guide rail of the drive carriage. For this purpose, a thrust link chain, not shown, with the rear end of the drive carriage 3 connected and then becomes parallel to the guide rail 4 up to a second engine 7 (again a hydraulic motor) guided at the rear end of the guide rail 4 is arranged. The motor 7 includes a drive pinion, which engages in the push link chain and in this way the driving forces of the motor 7 on the drive carriage 3 transfers. The protruding part of the push link chain is deflected by the drive pinion through 180 ° and on the underside of the guide rail 4 led in an appropriate leadership.
  • At the front (lower) end of the guide rail 4 includes the drive carriage 1 still a combined guide and clamping unit 8th , which serves on the one hand, the movement of the means of the drive carriage 3 propelled or withdrawn linkage 6 respectively. On the other hand, the guide and clamping unit 8th two juxtaposed clamping devices 9 one of which is on the front end of the rod held in the drive carriage 6 and the other can act on the rear end of the drilled drill string (not shown). The clamping devices 9 allow screwing or unscrewing the held in the drive mount rod assembly 6 with / from the drilled drill pipe as well as the linkage 6 with the rotary drive 5 ,
  • At the front end of the guide rail 4 and thus also below the guide and clamping unit 8th has the Erdbohrvorrichtung an inventive, as an anchor plate 10 trained drip pan on. This anchor plate 10 is connected via a rotary bearing with the guide rail. The pivot bearing allows pivoting of the armature plate about an axis perpendicular to the longitudinal axis of the guide rail.
  • The 2 shows a first embodiment of a trained as a collecting trough anchor plate 10 as used for the earth boring device according to the 1 is usable. This comprises a housing which forms a collecting volume for drilling fluid flowing away from the earth boring device and in particular from the drill pipe mounted therein. The housing consists of a floor surface 11 , which is intended to rest on the earth's surface, and several side walls 12 , which is the upwardly open collection volume of the anchor plate 10 limit. In a front, no longer covered by the collection volume area of the floor area 11 There are a total of four openings 13 provided, can be inserted through the ground anchor (not shown) and driven into the ground to securely fix the Erdbohrvorrichtung in the desired position.
  • The anchor plate 10 is about a pivot bearing with the drive device of Erdbohrvorrichtung the 1 connected. The 2 shows two of it with the bottom surface 11 connected plain bearings 14 ,
  • Within the collecting volume of the anchor plate serving as a collecting tray 10 is a screw conveyor 15 provided by means of which the collecting in the collecting volume drilling fluid through a laterally arranged sequence 16 is transported away. The screw conveyor 15 includes a screw conveyor 17 that - via a motor 18 driven - rotatably disposed within a partially open screw trough.
  • Via a hose or a pipe (not shown), the drain is connected to a drilling fluid source (not shown), so that the collected and discharged drilling fluid can be returned to the auger.
  • The also as anchor plate 10 trained drip tray according to 3 is different from the one of 2 mainly in the type of conveyor used. Instead of in the embodiment according to the 2 used screw conveyor 15 is in the embodiment according to the 3 a conventional delivery pump 19 provided, which is arranged outside of the collection trough formed by the collecting trough. The pump 19 is designed as a centrifugal pump, which has an integrated motor 20 is driven. A connection of an inlet pipe 21 the feed pump 19 with the process 16 The anchor plate is via two hooks 22 , which work together on an actuating ring 23 are struck, the over a handle 24 (in the direction of the feed pump 19 ) can be relocated, eliminating the hooks of the hooks 22 in one of the process 16 trained annular undercut intervene.
  • The guide rail 4 is over almost its entire length with a guide plate 25 provided, which serves to drilling fluid, that of the in the drive carriage 1 held rod section 6 , the rotary drive 5 and / or the guiding and clamping unit 8th drains, catch and in serving as a collecting tray anchor plate 10 dissipate. In particular, during the addition / removal of a rod section 6 For example, the amount of drilling fluid collected and recycled by the earth drilling apparatus of the present invention can be significant.

Claims (9)

  1. Erdbohrvorrichtung with a drive device and a drill pipe, which consists of individual interconnected rod sections (6) and is hollow for the transport of a drilling fluid, wherein a collecting tray for from the drive device and / or the Drill rod emerging drilling fluid and an integrated into the drip tray (16) are provided for the drilling fluid, characterized in that the drip tray is formed as an anchor plate (10) formed with a support surface for resting on the ground, wherein a conveyor for removing the drilling fluid from the drip pan and the conveyor is integrated into the drip pan.
  2. Erdbohrvorrichtung according to Claim 1 , characterized in that the collecting trough is arranged at one end of a drill carrier carrying the drill carriage (1).
  3. Ground drilling device according to one of the preceding claims, characterized by a guide plate (25) arranged below the drill pipe, via which drilling fluid flowing from the drill pipe is guided into the collecting trough.
  4. Erdbohrvorrichtung according to one of Claims 1 to 3 , characterized in that the conveyor is arranged within a collecting volume formed by the collecting trough and designed as a screw conveyor (15).
  5. Erdbohrvorrichtung according to one of Claims 1 to 3 , characterized in that the conveying device is designed as a feed pump (19).
  6. Drip pan for a Erdbohrvorrichtung with a housing that forms a catchment volume for a drilling fluid, and a built-in trough drainage (16) for the drilling fluid, characterized in that the collecting trough as an anchor plate (10) with a formed for a support on the ground Support surface is formed, and a conveyor for removing the drilling fluid from the sump available and the conveyor is integrated into the sump.
  7. A method for supplying a drilling apparatus with a drilling fluid, wherein the drilling fluid is conveyed from a Bohrflüssigkeitsquelle to a hollow, provided for the transport of the drilling fluid drill pipe, wherein the flowing out of the drill pipe drilling fluid is collected and transported away, characterized by using the sump as an anchor plate (10 ) with a trained for a support on the ground support surface, wherein a conveyor for removing drilling fluid from the drip pan is used and the conveyor is integrated into the drip pan.
  8. Method according to Claim 7 , characterized in that the collected drilling fluid is transported back to the drilling fluid source.
  9. Method according to Claim 8 , characterized in that the drilling fluid is treated before it returns to the Bohrflüssigkeitsquelle.
DE102010015466.0A 2010-04-16 2010-04-16 An earth boring apparatus and method for supplying an earth boring device with a drilling fluid Active DE102010015466C5 (en)

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DE102010015466.0A DE102010015466C5 (en) 2010-04-16 2010-04-16 An earth boring apparatus and method for supplying an earth boring device with a drilling fluid

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DE102010015466.0A DE102010015466C5 (en) 2010-04-16 2010-04-16 An earth boring apparatus and method for supplying an earth boring device with a drilling fluid

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DE102010015466A1 DE102010015466A1 (en) 2011-10-20
DE102010015466B4 DE102010015466B4 (en) 2015-05-28
DE102010015466C5 true DE102010015466C5 (en) 2019-11-21

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4493382A (en) * 1983-08-25 1985-01-15 Gus Pech Manufacturing Co. Vehicle-mounted earth drilling apparatus
US5121796A (en) * 1991-05-13 1992-06-16 Wigington Sr James R Oil well spill trough
US5228506A (en) * 1991-12-04 1993-07-20 Pearce Stevan E Spill collection system for wellheads
WO2010005522A1 (en) * 2008-06-30 2010-01-14 Water Bochenek Multi-function geothermal and water well drilling machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4493382A (en) * 1983-08-25 1985-01-15 Gus Pech Manufacturing Co. Vehicle-mounted earth drilling apparatus
US5121796A (en) * 1991-05-13 1992-06-16 Wigington Sr James R Oil well spill trough
US5228506A (en) * 1991-12-04 1993-07-20 Pearce Stevan E Spill collection system for wellheads
WO2010005522A1 (en) * 2008-06-30 2010-01-14 Water Bochenek Multi-function geothermal and water well drilling machine

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Publication number Publication date
DE102010015466B4 (en) 2015-05-28
DE102010015466A1 (en) 2011-10-20

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