Advancing a tubular string in a wellbore
OwnerRoger L. SCHULTZinventor
Life of this patent
Estimating the term…
Abstract
A well system can include a tubular string deployed in a wellbore and a flow modulation system at a surface location. The flow modulation system periodically varies a flow rate of fluid flowed in the wellbore. The flow modulation system comprises a motor and a variable flow restrictor driven by the motor. A method of advancing a tubular string in a subterranean well, the method comprising: pumping fluid through the tubular string and into a wellbore of the well; returning the fluid to a surface location; and flowing the fluid through a flow modulation system at the surface location, thereby producing fluctuations in a flow rate of the fluid.
Claims28
A well system for use with a subterranean well, the well system comprising:
- a tubular string deployed in a wellbore of the well;
- and a flow modulation system at a surface location, the flow modulation system configured to periodically vary a flow rate of fluid flowed in the wellbore, in which the flow modulation system comprises a motor and a variable flow restrictor driven by the motor.
A method of advancing a tubular string in a subterranean well, the method comprising:
- pumping fluid through the tubular string and into a wellbore of the well;
- returning the fluid to a surface location;
- and blowing the fluid through a flow modulation system at the surface location, thereby producing fluctuations in a flow rate of the fluid.
Dependencies are inferred from the claim text.