CPC E21B 34/06 (2013.01) [E21B 43/121 (2013.01)] | 31 Claims |
1. A fluid pulse generator for use with a subterranean well, the fluid pulse generator comprising:
a fluid motor including a rotor configured to rotate in response to fluid flow through the fluid motor;
a variable flow restrictor positioned upstream of the fluid motor, the variable flow restrictor including a restrictor member rotatable by the rotor relative to a ported member to thereby variably restrict the fluid flow; and
the restrictor member being longitudinally displaceable relative to the rotor during operation of the fluid pulse generator, in which a variable length connection transmits rotation and torque from the rotor to the restrictor member, and in which the variable length connection comprises a splined connection.
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