AU419509B2 - Drilling methods and apparatus employing out-of-phase pressure variations in a drilling fluid - Google Patents

Drilling methods and apparatus employing out-of-phase pressure variations in a drilling fluid

Info

Publication number
AU419509B2
AU419509B2 AU24287/67A AU2428767A AU419509B2 AU 419509 B2 AU419509 B2 AU 419509B2 AU 24287/67 A AU24287/67 A AU 24287/67A AU 2428767 A AU2428767 A AU 2428767A AU 419509 B2 AU419509 B2 AU 419509B2
Authority
AU
Australia
Prior art keywords
drilling
apparatus employing
pressure variations
phase pressure
drilling fluid
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
Application number
AU24287/67A
Other versions
AU2428767A (en
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
Application granted granted Critical
Publication of AU2428767A publication Critical patent/AU2428767A/en
Publication of AU419509B2 publication Critical patent/AU419509B2/en
Expired legal-status Critical Current

Links

AU24287/67A 1966-08-05 1967-07-07 Drilling methods and apparatus employing out-of-phase pressure variations in a drilling fluid Expired AU419509B2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
USUS576,170 1966-08-05

Publications (2)

Publication Number Publication Date
AU2428767A AU2428767A (en) 1969-01-09
AU419509B2 true AU419509B2 (en) 1969-01-09

Family

ID=

Similar Documents

Publication Publication Date Title
AU419509B2 (en) Drilling methods and apparatus employing out-of-phase pressure variations in a drilling fluid
AU2428767A (en) Drilling methods and apparatus employing out-of-phase pressure variations in a drilling fluid
CA834595A (en) Drilling methods and apparatus employing out-of-phase pressure variations in a drilling fluid
CA829154A (en) Drilling methods and apparatus employing pressure variations in a drilling fluid
AU419458B2 (en) Drilling method and apparatus employing pressure variations ina drilling fluid
AU2108167A (en) Drilling method and apparatus employing pressure variations ina drilling fluid
AU402187B2 (en) Method and apparatus for measuring changes in borehole fluid pressures
AU129866A (en) Method and apparatus for measuring changes in borehole fluid pressures
CA737272A (en) Formation fluid sampling method and apparatus
CA744619A (en) Fluid combining method and device
CA715932A (en) Hose fitting and method
CA736770A (en) Fluid flow control in wells
CA702189A (en) Fluid pressure device
CA721077A (en) Physiologic fluid pressure measuring apparatus
AU435271B2 (en) Apparatus for smoothing pressure variations in gaseous flow
CA705600A (en) Method and device for attaining very low pressure
CA735740A (en) Valve bag packer apparatus and method
AU405461B2 (en) A method for fluid extraction and apparatus therefor
AU405518B2 (en) Offshore operations in wells
CA715358A (en) Well pipe centering and fluid flow-course controlling device
CA742873A (en) Underground pressure vessels and construction methods therefor
CA708394A (en) Pipe making machine and method
CA779090A (en) Cementing pipe in wells
CA787833A (en) Drilling fluid and method for increasing drilling rate
AU4663068A (en) Apparatus for smoothing pressure variations in gaseous flow