DE3763647D1 - Bohren mit bohrlochswerkzeugen. - Google Patents

Bohren mit bohrlochswerkzeugen.

Info

Publication number
DE3763647D1
DE3763647D1 DE8787902601T DE3763647T DE3763647D1 DE 3763647 D1 DE3763647 D1 DE 3763647D1 DE 8787902601 T DE8787902601 T DE 8787902601T DE 3763647 T DE3763647 T DE 3763647T DE 3763647 D1 DE3763647 D1 DE 3763647D1
Authority
DE
Germany
Prior art keywords
drilling
hole tools
tools
hole
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.)
Expired - Lifetime
Application number
DE8787902601T
Other languages
English (en)
Inventor
John Forrest
Rory Tulloch
William Stewart
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.)
Drilex UK Ltd
Original Assignee
Drilex UK Ltd
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
Priority claimed from GB868608857A external-priority patent/GB8608857D0/en
Application filed by Drilex UK Ltd filed Critical Drilex UK Ltd
Application granted granted Critical
Publication of DE3763647D1 publication Critical patent/DE3763647D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

DE8787902601T 1986-04-11 1987-04-10 Bohren mit bohrlochswerkzeugen. Expired - Lifetime DE3763647D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB868608857A GB8608857D0 (en) 1986-04-11 1986-04-11 Drilling
PCT/GB1987/000245 WO1987006300A1 (en) 1986-04-11 1987-04-10 Improvements in drilling using downhole drilling tools

Publications (1)

Publication Number Publication Date
DE3763647D1 true DE3763647D1 (de) 1990-08-16

Family

ID=26290613

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8787902601T Expired - Lifetime DE3763647D1 (de) 1986-04-11 1987-04-10 Bohren mit bohrlochswerkzeugen.

Country Status (1)

Country Link
DE (1) DE3763647D1 (de)

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee