Method for Servicing a Well Bore Using a Mixing Control System
AssigneeHalliburton Energy Services, Inc.
InventorsJason D. Dykstra, Justin A. Borgstadt
Life of this patent
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Abstract
A method for servicing a well bore comprises connecting a mixing system to the well bore, controlling the mixing system to produce a material mixture with approximately a desired density, and controlling the mixing system to provide the material mixture to the well bore at approximately a desired volumetric flow rate to service the well bore, wherein the controlling to produce approximately a desired density is independent from the controlling to provide approximately a desired volumetric flow rate.
Claims30
A method for servicing a well bore comprising:
- connecting a mixing system to the well bore;
- controlling the mixing system to produce a material mixture with approximately a desired density;
- controlling the mixing system to provide the material mixture to the well bore at approximately a desired volumetric flow rate to service the well bore;
- and
- performing at least some of the controlling steps based on decoupling a negative mass flow state feedback associated with the mixing system.
A method for servicing a well bore comprising:
- connecting a mixing system to the well bore;
- controlling the mixing system to produce a material mixture with approximately a desired density;
- controlling the mixing system to provide the material mixture to the well bore at approximately a desired volumetric flow rate to service the well bore;
- and
- performing at least some of the controlling steps based on a command feed forward to reduce time lag in controlling the mixing system.
A method for servicing a well bore comprising:
- connecting a mixing system to the well bore;
- controlling the mixing system to produce a material mixture with approximately a desired density;
- controlling the mixing system to provide the material mixture to the well bore at approximately a desired volumetric flow rate to service the well bore;
- and
- feeding back a delayed sensed value of density to improve the accuracy of the controlling to produce approximately the desired density.
A method for servicing a well bore comprising:
- connecting a mixing system to the well bore;
- controlling the mixing system to produce a material mixture with approximately a desired density;
- controlling the mixing system to provide the material mixture to the well bore at approximately a desired volumetric flow rate to service the well bore;
- and
- performing the controlling steps based, at least in part, on a density estimate, wherein the density estimate is based on a sensed density.
Dependencies are inferred from the claim text.