WO2008143577A1 - A device for drilling in earth-layers and rock - Google Patents

A device for drilling in earth-layers and rock Download PDF

Info

Publication number
WO2008143577A1
WO2008143577A1 PCT/SE2008/000345 SE2008000345W WO2008143577A1 WO 2008143577 A1 WO2008143577 A1 WO 2008143577A1 SE 2008000345 W SE2008000345 W SE 2008000345W WO 2008143577 A1 WO2008143577 A1 WO 2008143577A1
Authority
WO
WIPO (PCT)
Prior art keywords
casing pipe
bore
guide
shoulder
crown
Prior art date
Application number
PCT/SE2008/000345
Other languages
French (fr)
Inventor
Östen EDMAN
Original Assignee
Edman Oesten
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Edman Oesten filed Critical Edman Oesten
Priority to EP08767039.4A priority Critical patent/EP2165039B8/en
Publication of WO2008143577A1 publication Critical patent/WO2008143577A1/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes
    • E21B7/208—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes using down-hole drives
    • 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
    • E21B10/00—Drill bits
    • E21B10/36—Percussion drill bits
    • E21B10/40—Percussion drill bits with leading portion
    • 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
    • E21B10/00—Drill bits
    • E21B10/64—Drill bits characterised by the whole or part thereof being insertable into or removable from the borehole without withdrawing the drilling pipe
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/14—Casing shoes for the protection of the bottom of the casing
    • 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
    • E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes

Definitions

  • the present invention refers to a device for performing of a drilling in earth-layers and rocks at the same time as a casing pipe is forced downwards into the ground, so that strokes from a countersink hammer via a bore crown or a guide belonging to a bore crown is acting against a shoulder situated at the lower most portion of the casing pipe in driving downwards of the casing pipe into the bore hole made together with the bore crown used.
  • Bore devices of today are usually built up around a countersink hammer and is used for instance for drilling of a well, said drilling tool comprising a pilot crown having a reamer bit provided, so that it can be throw outwards eccentrically in relation to the pilot crown and make the bore being drilled larger.
  • the bore hole made can get the dimension enough in order to besides the bore crown in a swung in position has place for a casing pipe, which has been moved downwards into the bore hole at the same time as the hole is being made.
  • the casing pipe is driven downwards into the hole together with the bore crown by that the strokes of a counter sink hammer via the bore crown or a guide is acting against a shoulder situated at the lower most portion of the casing pipe.
  • the casing pipes usually consist of three meter's lengths of steel or plastic which are welded or screwed together as the casing pips are driven downwards into the bore hole.
  • One drawback using this technique is that during the end of the drilling and the removing of the bore head out from the bore hole, valuable material must be left in the hole, which is anchored in different ways at the end portion of the casing pipe and which is necessary for carrying out the drilling and the driving downwards of the casing pipe into the bore hole.
  • One object of the present invention is to eliminate those drawbacks present of known bore devices of the type mentioned above by providing a new type of device for drilling in earth-layers and rocks.
  • the characterizing features of the present invention are set forth in the claims enclosed.
  • the shoulder which is situated at the lower portion of the casing pipe, formed by a wearing ring of steel or plastic resting against an edge portion within the inner mantle surface of the casing pipe, which directly or indirectly cooperates against a shoulder surface facing in a direction to the free end portion of the casing pipe, said shoulder surface is located on the guide belonging to the casing pipe and also a boring string rotary connected to a boring machine.
  • a shoulder provided protecting ring can further be used in the free end portion of the casing pipe in preventing of penetrating of gravel and sand between the bore crown and the casing pipe and the shoulders of which are located on the protecting ring so that the wearing ring indirectly cooperates against the shoulder surface of the bore crown or the guide.
  • Fig. 1 shows a schematic cross section view of a previously known embodiment form of a bore crown with belonging parts in connection with the lowermost free end portion of a casing pipe
  • Fig. 2 shows a schematic cross section view like the one illustrated in Fig. 1 but formed according to the present invention
  • Fig. 3 shows a cross section view of a wearing ring formed according to the present invention
  • Fig. 4 shows a cross section view of a protecting ring which can be used in preventing penetrating of gravel and sand between the bore crown and the casing pipe.
  • the same consists of a device illustrated in Fig. 2 comprising a bore or pilot crown I 9 a reamer crown 2 and a guide 3 of a counter sink hammer not illustrated in the drawing and a portion of a boring string 4.
  • the crowns 1 and 2 and the guide 3 are rotated via the boring string 4 in a way known and are influenced axially by the counter sink hammer.
  • a casing pipe 5 of preferably a plastic material as e.g. PEH-plastic, according to the invention, is provided with a shoulder 6 in its lower most portion 7, which is constituted by a wearing ring 10 of a steel or plastic material, resting against an edge portion 8 within the inner mantle surface 9 of the casing pipe 5.
  • the guide 3 in this embodiment example has a downwardly directed shoulder surface 11 located on a expanded portion 12 and which transfers the strokes of the counter sink hammer against the wearing ring 10 and its shoulder 6 either directly via a protecting ring 13 illustrated in Fig. 2, which prevents penetrating of gravel and sand between the bore crown and casing pipe.
  • the protecting ring 13 also has a first or second shoulder surface 14 and 15 for transferring strokes from the counter sink hammer indirectly against the wearing ring 10 from the shoulder surface 11 of the guide 3.
  • the casing pipe 5 is drawn downwards by the strokes directed against the guide 3 and from this they are directly transferred to the shoulder 6 of the wearing ring 10 or indirect via the shoulder surfaces 14 and 15 of the protecting ring 13.
  • FIG. 1 an embodiment example of a known formation of the parts of a bore crown of an equipment for a simultaneous drilling and lining of a bore hole is illustrated in a cross section view, in said example a casing pipe 5 'of steel is used, which in its lower most free end portion T has a sleeve formation 10' of steel, which is welded to the casing pipe 5' in order to constitute in the same time a shoulder 6' directed upwards for transferring of strokes driven downwards from a counter sink hammer via a shoulder surface 11' on the guide 3'.
  • a cross section view of the wearing ring 10 is illustrated, as it is formed according to the invention and in Fig. 4 a cross section view of the protecting ring 13 is illustrated, as it is formed according to the present invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)

Abstract

The invention refers to a device for carrying out drilling in earth-layers and rocks during a simultaneous forcing downwards of a casing pipe (5) into the ground, whereby strokes from a countersink hammer via a bore crown or a guide (3) belonging to a bore crown (1) is provided to cooperate against a shoulder (6) situated at the lower most portion (7) of the casing pipe (5) in driving downwards of the casing pipe (5) into the bore hole made together with the bore crown (1) used. Said shoulder (6) is formed by a wearing ring (10) placed into position against an edge portion (8) within the inner mantle surface (9) of the casing pipe (5) for a direct or indirect cooperation against a shoulder surface (11) faced in a direction to the free end portion (7) of the casing pipe (5) and which is situated on the bore crown (1) or the guide (3) belonging to the bore crown (1) and also to a boring string (4) rotary connected to a drilling machine.

Description

A device for drilling in earth-layers and rock
The present invention refers to a device for performing of a drilling in earth-layers and rocks at the same time as a casing pipe is forced downwards into the ground, so that strokes from a countersink hammer via a bore crown or a guide belonging to a bore crown is acting against a shoulder situated at the lower most portion of the casing pipe in driving downwards of the casing pipe into the bore hole made together with the bore crown used.
Bore devices of today are usually built up around a countersink hammer and is used for instance for drilling of a well, said drilling tool comprising a pilot crown having a reamer bit provided, so that it can be throw outwards eccentrically in relation to the pilot crown and make the bore being drilled larger. In this case the bore hole made can get the dimension enough in order to besides the bore crown in a swung in position has place for a casing pipe, which has been moved downwards into the bore hole at the same time as the hole is being made. The casing pipe is driven downwards into the hole together with the bore crown by that the strokes of a counter sink hammer via the bore crown or a guide is acting against a shoulder situated at the lower most portion of the casing pipe. The casing pipes usually consist of three meter's lengths of steel or plastic which are welded or screwed together as the casing pips are driven downwards into the bore hole. One drawback using this technique is that during the end of the drilling and the removing of the bore head out from the bore hole, valuable material must be left in the hole, which is anchored in different ways at the end portion of the casing pipe and which is necessary for carrying out the drilling and the driving downwards of the casing pipe into the bore hole.
One object of the present invention is to eliminate those drawbacks present of known bore devices of the type mentioned above by providing a new type of device for drilling in earth-layers and rocks. The characterizing features of the present invention are set forth in the claims enclosed.
Thanks to the invention a device has now been provided, which in an excellent way fulfils its purpose at the same time as it furthermore is both cheap and easy to manufacture. According to the invention the shoulder, which is situated at the lower portion of the casing pipe, formed by a wearing ring of steel or plastic resting against an edge portion within the inner mantle surface of the casing pipe, which directly or indirectly cooperates against a shoulder surface facing in a direction to the free end portion of the casing pipe, said shoulder surface is located on the guide belonging to the casing pipe and also a boring string rotary connected to a boring machine. A shoulder provided protecting ring can further be used in the free end portion of the casing pipe in preventing of penetrating of gravel and sand between the bore crown and the casing pipe and the shoulders of which are located on the protecting ring so that the wearing ring indirectly cooperates against the shoulder surface of the bore crown or the guide.
The invention is described closer below with help of a preferred embodiment example with reference to the accompanying drawings, in which
Fig. 1 shows a schematic cross section view of a previously known embodiment form of a bore crown with belonging parts in connection with the lowermost free end portion of a casing pipe,
Fig. 2 shows a schematic cross section view like the one illustrated in Fig. 1 but formed according to the present invention,
Fig. 3 shows a cross section view of a wearing ring formed according to the present invention, and
Fig. 4 shows a cross section view of a protecting ring which can be used in preventing penetrating of gravel and sand between the bore crown and the casing pipe.
According to a preferred embodiment example of the invention the same consists of a device illustrated in Fig. 2 comprising a bore or pilot crown I9 a reamer crown 2 and a guide 3 of a counter sink hammer not illustrated in the drawing and a portion of a boring string 4. The crowns 1 and 2 and the guide 3 are rotated via the boring string 4 in a way known and are influenced axially by the counter sink hammer. A casing pipe 5 of preferably a plastic material as e.g. PEH-plastic, according to the invention, is provided with a shoulder 6 in its lower most portion 7, which is constituted by a wearing ring 10 of a steel or plastic material, resting against an edge portion 8 within the inner mantle surface 9 of the casing pipe 5. The guide 3 in this embodiment example has a downwardly directed shoulder surface 11 located on a expanded portion 12 and which transfers the strokes of the counter sink hammer against the wearing ring 10 and its shoulder 6 either directly via a protecting ring 13 illustrated in Fig. 2, which prevents penetrating of gravel and sand between the bore crown and casing pipe. The protecting ring 13 also has a first or second shoulder surface 14 and 15 for transferring strokes from the counter sink hammer indirectly against the wearing ring 10 from the shoulder surface 11 of the guide 3. The casing pipe 5 is drawn downwards by the strokes directed against the guide 3 and from this they are directly transferred to the shoulder 6 of the wearing ring 10 or indirect via the shoulder surfaces 14 and 15 of the protecting ring 13.
In Fig. 1 an embodiment example of a known formation of the parts of a bore crown of an equipment for a simultaneous drilling and lining of a bore hole is illustrated in a cross section view, in said example a casing pipe 5 'of steel is used, which in its lower most free end portion T has a sleeve formation 10' of steel, which is welded to the casing pipe 5' in order to constitute in the same time a shoulder 6' directed upwards for transferring of strokes driven downwards from a counter sink hammer via a shoulder surface 11' on the guide 3'.
In Fig. 3 a cross section view of the wearing ring 10 is illustrated, as it is formed according to the invention and in Fig. 4 a cross section view of the protecting ring 13 is illustrated, as it is formed according to the present invention.

Claims

Claims
1. A device for carrying out drilling in earth-layers and rocks during a simultaneous forcing downwards of a casing pipe (5) into the ground, whereby strokes from a countersink hammer via a bore crown or a guide (3) belonging to a bore crown (1) is provided to cooperate against a shoulder (6) situated at the lower most portion (7) of the casing pipe (5) in driving downwards of the casing pipe (5) into the bore hole made together with the bore crown (1) used, characterized in that the shoulder (6) is formed by a wearing ring (10) placed into position against an internally edge portion (8) within the casing pipe (5) for a direct or indirect cooperation against a shoulder surface (11) situated on the bore crown (1) or the guide (3) and which is faced downwards in a direction to the free, lower most portion (7) of the casing pipe (5).
2. A device according to claim 1, characterized in that the wearing ring (10) is intended for an indirect cooperation with said guide (3) via a protecting ring (13) extending between the inner mantle surface (9) of the casing pipe (5) and the guide (3) and between the inner mantle surface (9) of the casing pipe (5) with the adjacent wearing ring (10) and the guide, said protecting ring (13) in turn has a first shoulder surface (14) directed downwards for cooperation against the wearing ring (10) and a second shoulder surface (15) directed upwards for cooperation with the downwardly directed shoulder surface (11), which is provided on the guide (3).
PCT/SE2008/000345 2007-05-21 2008-05-21 A device for drilling in earth-layers and rock WO2008143577A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08767039.4A EP2165039B8 (en) 2007-05-21 2008-05-21 A device for drilling in earth-layers and rock

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0701274-3 2007-05-21
SE0701274A SE530357C2 (en) 2007-05-21 2007-05-21 Device for drilling in soil layers and rock

Publications (1)

Publication Number Publication Date
WO2008143577A1 true WO2008143577A1 (en) 2008-11-27

Family

ID=39356797

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2008/000345 WO2008143577A1 (en) 2007-05-21 2008-05-21 A device for drilling in earth-layers and rock

Country Status (3)

Country Link
EP (1) EP2165039B8 (en)
SE (1) SE530357C2 (en)
WO (1) WO2008143577A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015044508A1 (en) * 2013-09-30 2015-04-02 Oy Atlas Copco Rotex Ab Method for putting together of a drilling device and drilling device
WO2017140956A1 (en) * 2016-02-17 2017-08-24 Geonex Oy Drilling apparatus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI20085961A0 (en) * 2008-10-13 2008-10-13 Atlas Copco Rotex Ab Oy Method and drilling device for submersible drilling

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5284216A (en) * 1990-02-19 1994-02-08 Sandvik Ab Down-the-hole drill tool for drilling in advance of a casing tube
WO2003004824A1 (en) 2001-07-02 2003-01-16 Loef Uno Earth drilling device
WO2005098194A1 (en) * 2004-04-07 2005-10-20 Oy Atlas Copco Rotex Ab Device for a drilling tool
WO2006025713A1 (en) * 2004-09-03 2006-03-09 Byung-Duk Lim A drilling apparatus having in-line extending wings and driving method thereof

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4706764A (en) * 1986-08-01 1987-11-17 Ingersoll-Rand Company Two piece down hole drill chuck
US5009271A (en) * 1990-07-16 1991-04-23 Milan Maric Drill assembly
US5803192A (en) * 1996-05-13 1998-09-08 Holte; Ardis L. Drill bit retainer for a down hole hammer assembly
US5647447A (en) * 1996-06-10 1997-07-15 Ingersoll-Rand Company Bit retention device for a bit and chuck assembly of a down-the-hole percussive drill
US6502650B1 (en) * 2000-11-15 2003-01-07 Sandvik Ab Percussive down-the-hole hammer for rock drilling, and a drill bit used therein

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5284216A (en) * 1990-02-19 1994-02-08 Sandvik Ab Down-the-hole drill tool for drilling in advance of a casing tube
WO2003004824A1 (en) 2001-07-02 2003-01-16 Loef Uno Earth drilling device
WO2005098194A1 (en) * 2004-04-07 2005-10-20 Oy Atlas Copco Rotex Ab Device for a drilling tool
WO2006025713A1 (en) * 2004-09-03 2006-03-09 Byung-Duk Lim A drilling apparatus having in-line extending wings and driving method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015044508A1 (en) * 2013-09-30 2015-04-02 Oy Atlas Copco Rotex Ab Method for putting together of a drilling device and drilling device
WO2017140956A1 (en) * 2016-02-17 2017-08-24 Geonex Oy Drilling apparatus

Also Published As

Publication number Publication date
SE0701274L (en) 2008-05-13
EP2165039A1 (en) 2010-03-24
EP2165039B8 (en) 2018-02-21
EP2165039B1 (en) 2017-12-27
SE530357C2 (en) 2008-05-13
EP2165039A4 (en) 2015-12-09

Similar Documents

Publication Publication Date Title
US6182776B1 (en) Overburden drilling apparatus having a down-the-hole hammer separatable from an outer casing/drill bit unit
US6394197B1 (en) Reverse circulation drilling system with bit locked underreamer arms
US6789635B2 (en) Drill bit for directional drilling in cobble formations
US9133667B2 (en) Drill bit for boring earth and other hard materials
JPS6088780A (en) Drilling apparatus
US10538970B2 (en) Method for drilling out a plug using a hybrid rotary cone drill bit
CN102971481B (en) Looping pit auger
WO2009046082A3 (en) Cutting structures for earth-boring drill bits
NO20050124L (en) Method and apparatus with integrated or otherwise combined lining out of a wellbore and the raising of a section for lateral or offset drilling
KR100416209B1 (en) closed hammer bit coming and going by slide type
WO2008069863A3 (en) Earth boring bit
EP2165039B1 (en) A device for drilling in earth-layers and rock
US8763729B2 (en) Percussion drilling assembly and hammer bit with gage and outer row reinforcement
US2009742A (en) Face bit
US11572740B2 (en) Downhole production casing string
AU2006281954B2 (en) Method and device for releasing a block on a bore-crown during a boring process
EP3060742B1 (en) Drilling device
US5119891A (en) Adaptor for drilling strings with controllable air passage
WO2011054020A3 (en) Method for the drilling, in particular percussion or rotary percussion drilling, of holes in soil or rock material and device therefor
CN112004985B (en) Drill bit with wear-resistant protection
US20120073877A1 (en) Hardpan auger
EP0367240A1 (en) Adaptor for drilling strings with a controllable air passage
US3485301A (en) Method of drilling wells in rock
KR20090012432U (en) Bit for boring machine
CN201517371U (en) Pneumatic punching scraping drill bit of mountainous composite stratum

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 08767039

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 2008767039

Country of ref document: EP