EP1614853A2 - Teleskopierbarer Spiralbohrer - Google Patents

Teleskopierbarer Spiralbohrer Download PDF

Info

Publication number: EP1614853A2
Authority: EP; European Patent Office
Prior art keywords: rod; motor; drilling; screw; internal
Prior art date: 2004-07-06
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.): Granted

Application number

EP05014616A

Other languages

English (en)

French (fr)

Other versions

EP1614853B1 (de

EP1614853A3 (de

Inventor

Luciano Agostini

Bruno Bettini

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.)

Soilmec SpA

Original Assignee

Soilmec SpA

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.)

2004-07-06

Filing date

2005-07-06

Publication date

2006-01-11

2005-07-06 Application filed by Soilmec SpA filed Critical Soilmec SpA

2006-01-11 Publication of EP1614853A2 publication Critical patent/EP1614853A2/de

2006-03-01 Publication of EP1614853A3 publication Critical patent/EP1614853A3/de

2007-08-22 Application granted granted Critical

2007-08-22 Publication of EP1614853B1 publication Critical patent/EP1614853B1/de

2025-07-06 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

238000005553 drilling Methods 0.000 claims abstract description 35
230000008878 coupling Effects 0.000 claims abstract description 9
238000010168 coupling process Methods 0.000 claims abstract description 9
238000005859 coupling reaction Methods 0.000 claims abstract description 9
238000000605 extraction Methods 0.000 claims description 8
230000000903 blocking effect Effects 0.000 claims description 3
238000000034 method Methods 0.000 claims description 3
239000002689 soil Substances 0.000 description 3
230000005540 biological transmission Effects 0.000 description 2
238000012986 modification Methods 0.000 description 2
230000004048 modification Effects 0.000 description 2
238000009434 installation Methods 0.000 description 1
230000035515 penetration Effects 0.000 description 1
230000000284 resting effect Effects 0.000 description 1

Images

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
- E21B10/00—Drill bits
- E21B10/44—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts
- 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
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/07—Telescoping joints for varying drill string lengths; Shock absorbers

Definitions

the invention relates to continuous-screw drilling equipment for drilling the ground having an extension rod with at least two sections of rod and to a drilling method which uses said equipment.
Continuous-screw drilling equipment for drilling the ground in which a motor assembly slides along a guide maintaining in rotation a screw tool, which is substantially as long as the guide itself; such equipment is able to drill a hole in the ground that is as deep as the length of the tool itself.
the plug When the tool is extracted from the earth, the plug is compressed and pushes against the walls of the drilling, thus preventing extraction or else tearing out the surrounding soil so forming a conical crater.
a purpose of the invention is to propose equipment that will be able to overcome the drawbacks referred to above.
a further purpose of the invention is to propose equipment, which, in overcoming the aforesaid drawbacks, will, however, not require any modifications to the machine nor will involve any supplementary operating time during extraction of the screw.
Yet a further purpose of the invention is to propose equipment that will enable an increase in the depth of drilling without sensibly slowing down the drilling cycle itself.
the invention proposes the provision of continuous-screw drilling equipment for drilling the ground having an extension rod with two sections according to Claim 1, as well as a drilling method which uses the aforesaid equipment according to Claim 3.
the invention draws its origin from the awareness that up to a certain length the plug of debris does not create insurmountable difficulties of extraction. Consequently, the solution proposed by the invention consists in dividing the plug into at least two parts of acceptable length, separated by screw elements that support the plug located on top of said elements.
the extension rod is made up of two coaxial sections or stretches of rod (see Figures 2 and 3), of which the internal one 4 is without turns and is rigidly connected to the screw tool 5.
the rods 4 and 6 are equipped with splined elements for coupling with one another, and the external rod 6 is in turn equipped with a splined coupling also with respect to the motor 3 so as to transmit the rotary motion from the motor to the respective screws 5 and 7.
the tool is set in operation by the motor and starts drilling; when the screw 5 has completely penetrated into the ground, the motor assembly 3 is raised, leaving the tool 5 in the drilling.
the motor 3 first of all slides around the outer rod 6 until it comes to a stop against its arrest collar 9. At this point, proceeding with the raising operation, the external rod 6, with its screw, is also raised and slides with respect to the internal rod 4 until it bears upon a respective arrest collar 10.
the tool has its screw 5 completely sunk into the ground, followed by a stretch 8 without any turns, which projects from the ground, then followed by the bottom turns 7 of the outer extension 6 and by the stretch without any turns of said outer extension 6 and by the stretch 11 of said extension.
the lowest turn of this second set 7 may have a sharpened or shaped end in order to gradually cut into the recompacted soil.
the turn may have a conical shape or be equipped with teeth.
the operating cycle of the equipment is as follows:
Blocking of the motor along the rods and of the rods with respect to one another in the desired positions can be obtained using mechanical systems (e.g., bayonet couplings) or magnetic systems which are altogether known to a person skilled in the branch and which, hence, will not be described herein.
mechanical systems e.g., bayonet couplings
magnetic systems which are altogether known to a person skilled in the branch and which, hence, will not be described herein.

Landscapes

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

EP05014616A 2004-07-06 2005-07-06 Teleskopierbarer Spiralbohrer Expired - Lifetime EP1614853B1 (de)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
IT000457A ITTO20040457A1 (it)	2004-07-06	2004-07-06	Attrezzatura di perforazione del terreno ad elica continua con asta di prolunga ad almeno due sfili e metodo di scavo mediante detta attrezzatura

Publications (3)

Publication Number	Publication Date
EP1614853A2 true EP1614853A2 (de)	2006-01-11
EP1614853A3 EP1614853A3 (de)	2006-03-01
EP1614853B1 EP1614853B1 (de)	2007-08-22

Family

ID=34980142

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP05014616A Expired - Lifetime EP1614853B1 (de)	2004-07-06	2005-07-06	Teleskopierbarer Spiralbohrer

Country Status (4)

Country	Link
EP (1)	EP1614853B1 (de)
AT (1)	ATE371088T1 (de)
DE (1)	DE602005002089D1 (de)
IT (1)	ITTO20040457A1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP2133507A1 (de) *	2008-06-13	2009-12-16	BAUER Maschinen GmbH	Bohrvorrichtung und Bohrverfahren
US9115545B2 (en)	2009-07-31	2015-08-25	Soilmec S.P.A.	Earth drilling machine
CN114991656A (zh) *	2022-05-26	2022-09-02	潍坊盛德石油机械制造有限公司	一种防止钻头水眼堵塞的螺杆钻具

Citations (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
IT1267370B1 (it)	1994-01-28	1997-02-05	Soilmec Spa	Perfezionamenti al procedimento di scavo ad elica continua e relativa attrezzatura.

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPH09112170A (ja) *	1995-10-17	1997-04-28	Bauaa Japan Kk	アースオーガー
FR2807455B1 (fr) *	2000-04-11	2004-04-02	Cie Du Sol	Machine pour la realisation de pieux fores

2004
- 2004-07-06 IT IT000457A patent/ITTO20040457A1/it unknown
2005
- 2005-07-06 DE DE602005002089T patent/DE602005002089D1/de not_active Expired - Lifetime
- 2005-07-06 AT AT05014616T patent/ATE371088T1/de not_active IP Right Cessation
- 2005-07-06 EP EP05014616A patent/EP1614853B1/de not_active Expired - Lifetime

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
IT1267370B1 (it)	1994-01-28	1997-02-05	Soilmec Spa	Perfezionamenti al procedimento di scavo ad elica continua e relativa attrezzatura.

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP2133507A1 (de) *	2008-06-13	2009-12-16	BAUER Maschinen GmbH	Bohrvorrichtung und Bohrverfahren
US8322458B2 (en)	2008-06-13	2012-12-04	Bauer Maschinen Gmbh	Drilling rig and drilling method
US9115545B2 (en)	2009-07-31	2015-08-25	Soilmec S.P.A.	Earth drilling machine
CN114991656A (zh) *	2022-05-26	2022-09-02	潍坊盛德石油机械制造有限公司	一种防止钻头水眼堵塞的螺杆钻具

Also Published As

Publication number	Publication date
ATE371088T1 (de)	2007-09-15
EP1614853B1 (de)	2007-08-22
ITTO20040457A1 (it)	2004-10-06
DE602005002089D1 (de)	2007-10-04
EP1614853A3 (de)	2006-03-01

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