NL7300273A - Blow-out preventer for gas and oil drilling - having a valve which closes automatically when pressure rises above the flushing pressure - Google Patents

Blow-out preventer for gas and oil drilling - having a valve which closes automatically when pressure rises above the flushing pressure

Info

Publication number
NL7300273A
NL7300273A NL7300273A NL7300273A NL7300273A NL 7300273 A NL7300273 A NL 7300273A NL 7300273 A NL7300273 A NL 7300273A NL 7300273 A NL7300273 A NL 7300273A NL 7300273 A NL7300273 A NL 7300273A
Authority
NL
Netherlands
Prior art keywords
pressure
valve
blow
gas
rises above
Prior art date
Application number
NL7300273A
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 filed Critical
Priority to NL7300273A priority Critical patent/NL7300273A/en
Publication of NL7300273A publication Critical patent/NL7300273A/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/10—Sealing or packing boreholes or wells in the borehole
    • E21B33/12—Packers; Plugs
    • E21B33/127—Packers; Plugs with inflatable sleeve
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B34/00—Valve arrangements for boreholes or wells
    • E21B34/06—Valve arrangements for boreholes or wells in wells
    • E21B34/08—Valve arrangements for boreholes or wells in wells responsive to flow or pressure of the fluid obtained

Abstract

The inlet to a packing sleeve is opened to fill and expand the sleeve by an increased flushing pressure. The valve and packing sleeve are mounted in a pipe, and may be positioned flat above the cutter.
NL7300273A 1973-01-09 1973-01-09 Blow-out preventer for gas and oil drilling - having a valve which closes automatically when pressure rises above the flushing pressure NL7300273A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL7300273A NL7300273A (en) 1973-01-09 1973-01-09 Blow-out preventer for gas and oil drilling - having a valve which closes automatically when pressure rises above the flushing pressure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7300273A NL7300273A (en) 1973-01-09 1973-01-09 Blow-out preventer for gas and oil drilling - having a valve which closes automatically when pressure rises above the flushing pressure

Publications (1)

Publication Number Publication Date
NL7300273A true NL7300273A (en) 1974-07-11

Family

ID=19817968

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7300273A NL7300273A (en) 1973-01-09 1973-01-09 Blow-out preventer for gas and oil drilling - having a valve which closes automatically when pressure rises above the flushing pressure

Country Status (1)

Country Link
NL (1) NL7300273A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0593122A2 (en) * 1992-10-16 1994-04-20 Norsk Hydro A.S. Blow-out prevention device for shutting off an annulus between a drill column and a well wall

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0593122A2 (en) * 1992-10-16 1994-04-20 Norsk Hydro A.S. Blow-out prevention device for shutting off an annulus between a drill column and a well wall
EP0593122A3 (en) * 1992-10-16 1994-06-29 Norsk Hydro Technology Blow-out prevention device for shutting off an annulus between a drill column and a well wall

Similar Documents

Publication Publication Date Title
ES424773A1 (en) Masonry plug
GB1369895A (en) Apparatus for maintaining a predetermined stress in a running strin for wells
GB835902A (en) Well apparatus
ES417159A1 (en) Trickle irrigation system
ES421426A1 (en) Improved annulus pressure operated well testing apparatus and its method of operation
KR840003837A (en) Hydraulic test method of pipe
FR2131784A5 (en)
GB1398017A (en) Preventer unit
CA1016465A (en) Fluid valve having a pressure responsive internal membrane
ES207395U (en) Valve disposition. (Machine-translation by Google Translate, not legally binding)
GB1514597A (en) Underground installations for the storage of petroleum products
FR2410196A1 (en) MIXING TAPS IMPROVEMENTS
NL7300273A (en) Blow-out preventer for gas and oil drilling - having a valve which closes automatically when pressure rises above the flushing pressure
GB1031139A (en) Well safety valve
GB1235256A (en) Sound damper for conduits conveying water under pressure
SE400621B (en) VALVE FOR BREAKING PRESSURE FLUID FLOW
NL160527C (en) THREE-PRESSURE REGULATING VALVE FOR INDIRECTLY ACTING PRESSURE AIR BRAKES.
ZA741176B (en) Battery operated, fluid pressure responsive valve controller
GB1228770A (en)
GB1503022A (en) High pressure gate valve
CA1036177A (en) Method for scrubbing polyvalent phenols from gas produced by pressure gasification and for extracting these phenols from the scrubbing water
SU994695A1 (en) Apparatus for launching well operation
FR2226545A1 (en) Offshore well eruption preventer - fitted with suspension block and radial fluid power connections
ES432217A1 (en) Fuel injection pumping apparatus
GB278310A (en)