CA2303710C - Systeme de forage de trous droits - Google Patents

Systeme de forage de trous droits Download PDF

Info

Publication number: CA2303710C
Authority: CA; Canada
Prior art keywords: thread; rod; drill rod; diameter; sleeve
Prior art date: 1997-01-06
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.): Expired - Lifetime

Application number

CA002303710A

Other languages

English (en)

Other versions

CA2303710A1 (fr

Inventor

James Jing Yao

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.)

Longyear TM Inc

Original Assignee

Boart Longyear Inc Canada

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.)

1997-01-06

Filing date

1997-12-05

Publication date

2005-11-08

1997-01-06 Priority claimed from AUPO4458A external-priority patent/AUPO445897A0/en

1997-12-05 Application filed by Boart Longyear Inc Canada filed Critical Boart Longyear Inc Canada

1998-01-05 Publication of CA2303710A1 publication Critical patent/CA2303710A1/fr

2005-11-08 Application granted granted Critical

2005-11-08 Publication of CA2303710C publication Critical patent/CA2303710C/fr

2017-12-05 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

238000005553 drilling Methods 0.000 title description 8
239000000463 material Substances 0.000 claims description 3
230000008878 coupling Effects 0.000 description 7
238000010168 coupling process Methods 0.000 description 7
238000005859 coupling reaction Methods 0.000 description 7
239000011295 pitch Substances 0.000 description 5
238000005452 bending Methods 0.000 description 3
230000009286 beneficial effect Effects 0.000 description 2
210000002683 foot Anatomy 0.000 description 2
238000004519 manufacturing process Methods 0.000 description 2
210000003423 ankle Anatomy 0.000 description 1
230000015572 biosynthetic process Effects 0.000 description 1
238000005422 blasting Methods 0.000 description 1
230000000295 complement effect Effects 0.000 description 1
230000001627 detrimental effect Effects 0.000 description 1
230000000694 effects Effects 0.000 description 1
230000013011 mating Effects 0.000 description 1
230000000116 mitigating effect Effects 0.000 description 1
230000002028 premature Effects 0.000 description 1
230000035939 shock Effects 0.000 description 1

Landscapes

Earth Drilling (AREA)

CA002303710A 1997-01-06 1997-12-05 Systeme de forage de trous droits Expired - Lifetime CA2303710C (fr)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
AUPO4458		1997-01-06
AUPO4458A AUPO445897A0 (en)	1997-01-06	1997-01-06	Straight hole drilling system
CA002221018A CA2221018C (fr)	1997-01-06	1997-12-05	Systeme de forage de trous droits

Related Parent Applications (1)

Application Number	Title	Priority Date	Filing Date
CA002221018A Division CA2221018C (fr)	1997-01-06	1997-12-05	Systeme de forage de trous droits

Publications (2)

Publication Number	Publication Date
CA2303710A1 CA2303710A1 (fr)	1998-01-05
CA2303710C true CA2303710C (fr)	2005-11-08

Family

ID=25645343

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA002303710A Expired - Lifetime CA2303710C (fr)	1997-01-06	1997-12-05	Systeme de forage de trous droits

Country Status (1)

Country	Link
CA (1)	CA2303710C (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP3095954B1 (fr)	2015-05-22	2024-05-15	Sandvik Intellectual Property AB	Tige de forage ou adaptateur de couplage avec un embout renforcé

1997
- 1997-12-05 CA CA002303710A patent/CA2303710C/fr not_active Expired - Lifetime

Also Published As

Publication number	Publication date
CA2303710A1 (fr)	1998-01-05

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Legal Events

Date	Code	Title	Description
2002-11-15	EEER	Examination request
2018-02-06	MKEX	Expiry	Effective date: 20171205