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US 7,243,726 B2Granted
Enhancing a flow through a well pump
AssigneeSchlumberger Technology Corporation
InventorHerve Ohmer
Life of this patent
Estimating the term…
Abstract
A method that is usable with a well includes injecting a chemical through a chemical injection line into a flow that passes through a well pump. The method includes controlling the injection of the chemical to enhance the flow through the pump.
Claims61
A method usable with a well, comprising:
- injecting a chemical through a chemical injection line into a well fluid flow that passes through a well pump;
- and
- controlling the injecting to enhance the flow when passing through the pump, including controlling the injecting to reduce instability of a well mixture flowing through the pump caused by a gas-to-liquid ratio of the mixture.
A system usable with a well, comprising:
- a pump to establish a flow through the well;
- a chemical injection line to inject a chemical into the flow upstream of the pump;
- and
- a circuit to control the injection of the chemical to enhance a flow through the pump,
- wherein the circuit controls the injection to reduce instability of a well mixture flowing through the pump caused by a gas-to-liciuid of the mixture.
2 more elements
A system usable with a well, comprising:
- a pump comprising a motor and a reservoir to receive a lubricant for the motor;
- and
- a mechanism to establish a bleed path between the reservoir and a well fluid flowpath of the pump to communicate the lubricant into the flowpath.
A method usable with a well, comprising:
- communicating a lubricant into a reservoir of a pump to lubricate a motor of the pump;
- and
- establishing a bleed path between the reservoir and a well fluid flowpath of the pump to communicate the lubricant into the flowpath.
A method usable with a well, comprising:
- injecting a chemical through a chemical injection line into a well fluid flow that passes through a well pump;
- controlling the injecting to enhance the flow when passing through the pump;
- and
- heating the flow to enhance reaction of the chemical with the flow.
1 more element
A system usable with a well, comprising:
- a pump to establish a flow through the well;
- a chemical injection line to inject a chemical into the flow upstream of the pump;
- a circuit to control the injection of the chemical to enhance a flow through the pump;
- and
- a heater to heat fluid flowing into the pump to enhance reaction of the chemical with the fluid.
2 more elements
A method usable with a well, comprising:
- injecting a chemical through a chemical injection line into a well fluid flow that passes through a well pump;
- controlling the injecting to enhance the flow when passing through the pump;
- and
- routing the chemical line to a subsea flow booster,
- wherein the pump is part of the booster.
2 more elements
A system usable with a well beneath a seabed, comprising:
- a pump to establish a flow through the well, the pump being part of a subsea flow booster;
- a chemical injection line to extend to the subsea flow booster to inject a chemical into the flow upstream of the pump;
- and
- a circuit to control the injection of the chemical to enhance a flow through the pump.
1 more element
Dependencies are inferred from the claim text.