Flow pulsing apparatus for drill string

Details Flow pulsing apparatus for drill string Flow pulsing apparatus for drill string

E - Fixed Constructions

21

B

E21B 7/24 (2006.01) E21B 21/10 (2006.01)

Patent

CA 2101329

2101329 9213168 PCTABS00014 This invention relates to flow pulsing apparatus (18) for various applications including downhole drilling equipment and in particular to an improved flow pulsing apparatus of this type to be connected in a drill string (20, 22, 24) above a drill bit (30) with a view to securing improvements in the drilling process.

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