FR2071262A5 - - Google Patents

Info

Publication number: FR2071262A5
Authority: FR; France
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

Application number

FR6944546A

Other languages

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.)

TIRAPOLSKY WLADIMIR

Original Assignee

TIRAPOLSKY WLADIMIR

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.)

1969-12-23

Filing date

1969-12-23

Publication date

1971-09-17

1969-12-23 Application filed by TIRAPOLSKY WLADIMIR filed Critical TIRAPOLSKY WLADIMIR

1969-12-23 Priority to FR6944546A priority Critical patent/FR2071262A5/fr

1970-11-18 Priority to GB1295373D priority patent/GB1295373A/en

1971-09-17 Application granted granted Critical

1971-09-17 Publication of FR2071262A5 publication Critical patent/FR2071262A5/fr

Status Expired legal-status Critical Current

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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/10—Valve arrangements in drilling-fluid circulation systems
- E21B21/103—Down-hole by-pass valve arrangements, i.e. between the inside of the drill string and the annulus

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)

FR6944546A 1969-12-23 1969-12-23 Expired FR2071262A5 (en)

Priority Applications (2)

Application Number	Priority Date	Filing Date	Title
FR6944546A FR2071262A5 (en)	1969-12-23	1969-12-23
GB1295373D GB1295373A (en)	1969-12-23	1970-11-18

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
FR6944546A FR2071262A5 (en)	1969-12-23	1969-12-23

Publications (1)

Publication Number	Publication Date
FR2071262A5 true FR2071262A5 (en)	1971-09-17

Family

ID=9045022

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR6944546A Expired FR2071262A5 (en)	1969-12-23	1969-12-23

Country Status (2)

Country	Link
FR (1)	FR2071262A5 (en)
GB (1)	GB1295373A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE2933678A1 (en) *	1978-08-28	1980-03-13	Inst Francais Du Petrol	DEVICE FOR REVERSING THE CIRCULATION DIRECTION OF A PRESSURE FLUID FEEDING A DRILLING TOOL

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB0220445D0 (en) *	2002-09-03	2002-10-09	Lee Paul B	Dart-operated big bore by-pass tool
US7231986B2 (en) *	2003-09-15	2007-06-19	Schlumberger Technology Corporation	Well tool protection system and method

1969
- 1969-12-23 FR FR6944546A patent/FR2071262A5/fr not_active Expired
1970
- 1970-11-18 GB GB1295373D patent/GB1295373A/en not_active Expired

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE2933678A1 (en) *	1978-08-28	1980-03-13	Inst Francais Du Petrol	DEVICE FOR REVERSING THE CIRCULATION DIRECTION OF A PRESSURE FLUID FEEDING A DRILLING TOOL
FR2434922A1 (en) *	1978-08-28	1980-03-28	Inst Francais Du Petrole	DEVICE FOR REVERSE THE DIRECTION OF FLOW OF A FLUID AT A DRILLING TOOL

Also Published As

Publication number	Publication date
GB1295373A (en)	1972-11-08

Publication	Publication Date	Title
AU2270770A (en)	1972-06-01
CS151576B2 (en)	1973-10-19
AU429630B2 (en)	1972-10-26
AU450150B2 (en)	1970-11-12
AU2355770A (en)	1972-06-22
FR2071262A5 (en)	1971-09-17
CS152470B2 (en)	1973-12-19
AU427401B2 (en)	1972-08-17
AU425297B2 (en)	1972-03-26
AU428074B2 (en)	1972-09-11
AU428129B2 (en)	1972-09-12
AU417208B2 (en)	1971-10-14
AU410358B2 (en)	1971-02-09
AU428131B2 (en)	1972-09-14
AU438128B2 (en)	1973-07-16
AU470661B1 (en)	1970-10-05
AT308690B (en)	1973-06-15
AU5079269A (en)	1971-07-01
AU5133369A (en)	1971-05-06
CS152055B1 (en)	1973-12-19
AU5228269A (en)	1970-09-24
AU1036070A (en)	1971-07-22
AR203167Q (en)	1975-08-22
AU4923469A (en)	1970-07-23
BE742909A (en)	1970-05-14

Legal Events

Date	Code	Title	Description
1974-02-15	ST	Notification of lapse