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US 7,072,588 B2Granted
Multiplexed distribution of optical power
AssigneeHalliburton Energy Services, Inc.
InventorNeal G. Skinner
Life of this patent
Estimating the term…
Abstract
An optical power distribution system and method permits multiple power consuming devices to be selectively supplied with power using a single fiber optic line. In a described embodiment, multiple electrical power consuming well tools are interconnected to a fiber optic line extending into a well. Control modules are interconnected between the fiber optic line and the well tools. When a particular optical wavelength band is transmitted through the fiber optic line, a corresponding one of the control modules causes the respective well tool to be selected for electrical power to be supplied thereto.
Claims25
A method of providing electrical power to multiple power consuming devices, the method comprising the steps of:
- interconnecting each of the power consuming devices to a fiber optic line, so that each of the power consuming devices is selectable for operation thereof by transmitting one of multiple optical wavelength bands through the fiber optic line, and wherein each of the transmitted optical wavelength bands causes a respective at least one of the power consuming devices to be selected;
- and
- transmitting various of the optical wavelength bands through the fiber optic line, thereby supplying electrical power to corresponding selected ones of the power consuming devices,
- the transmitting step further comprising simultaneously transmitting multiple ones of the optical wavelength bands through the fiber optic line, thereby selecting corresponding multiple ones of the power consuming devices for operation thereof,
- the multiple optical wavelength bands being transmitted through the fiber optic line by interconnecting a first optical coupler to the fiber optic line, the first optical coupler receiving separate optical wavelength bands from multiple tunable filters.
2 more elements
A method of providing electrical power to multiple power consuming devices, the method comprising the steps of:
- interconnecting each of the power consuming devices to a fiber optic line, so that each of the power consuming devices is selectable for operation thereof by transmitting one of multiple optical wavelength bands through the fiber optic line, and wherein each of the transmitted optical wavelength bands causes a respective at least one of the power consuming devices to be selected;
- and
- transmitting various of the optical wavelength bands through the fiber optic line, thereby supplying electrical power to corresponding selected ones of the power consuming devices,
- the transmitting step further comprising simultaneously transmitting multiple ones of the optical wavelength bands through the fiber optic line, thereby selecting corresponding multiple ones of the power consuming devices for operation thereof,
- the multiple optical wavelength bands being transmitted through the fiber optic line by interconnecting an optical coupler to the fiber optic line, the optical coupler receiving separate optical wavelength bands from respective multiple tunable lasers.
2 more elements
An electrical power distribution system, comprising:
- a fiber optic line;
- multiple power consuming devices;
- multiple control modules interconnected between the fiber optic line and the power consuming devices, each of the control modules being interconnected between the fiber optic line and one of the power consuming devices, and each of the control modules being operative to select the respective power consuming device for supplying electrical power thereto in response to one of multiple optical wavelength bands transmitted through the fiber optic line, each of the optical wavelength bands causing one of the control modules to select the respective power consuming device for supplying electrical power thereto;
- and
- multiple tunable filters and a first optical coupler interconnected to the fiber optic line, the first optical coupler receiving separate optical wavelength bands from the multiple tunable filters.
2 more elements
An electrical power distribution system, comprising:
- a fiber optic line;
- multiple power consuming devices;
- multiple control modules interconnected between the fiber optic line and the power consuming devices, each of the control modules being interconnected between the fiber optic line and one of the power consuming devices, and each of the control modules being operative to select the respective power consuming device for supplying electrical power thereto in response to one of multiple optical wavelength bands transmitted through the fiber optic line, each of the optical wavelength bands causing one of the control modules to select the respective power consuming device for supplying electrical power thereto, the multiple optical wavelength bands being transmitted simultaneously through the fiber optic line;
- and
- an optical coupler interconnected to the fiber optic line, the optical coupler receiving separate optical wavelength bands from multiple lasers, at least one of the multiple lasers being a tunable laser.
2 more elements
An electrical power distribution system, comprising:
- a fiber optic line;
- multiple power consuming devices;
- and
- multiple control modules interconnected between the fiber optic line and the power consuming devices, each of the control modules being interconnected between the fiber optic line and one of the power consuming devices, and each of the control modules being operative to select the respective power consuming device for supplying electrical power thereto in response to one of multiple optical wavelength bands transmitted through the fiber optic line, each of the optical wavelength bands causing one of the control modules to select the respective power consuming device for supplying electrical power thereto,
- the power consuming devices being data storage devices.
2 more elements
An electrical power distribution system, comprising:
- a fiber optic line;
- multiple power consuming devices;
- and
- multiple control modules interconnected between the fiber optic line and the power consuming devices, each of the control modules being interconnected between the fiber optic line and one of the power consuming devices, and each of the control modules being operative to select the respective power consuming device for supplying electrical power thereto in response to one of multiple optical wavelength bands transmitted through the fiber optic line, each of the optical wavelength bands causing one of the control modules to select the respective power consuming device for supplying electrical power thereto,
- the power consuming devices being devices having programmed functions, each of the devices performing its respective function in response to electrical power supplied thereto.
2 more elements
A well tool control system for selectively supplying electrical power to multiple electrical power consuming well tools in a subterranean well, the system comprising:
- a fiber optic line extending in the well;
- multiple control modules interconnected to the fiber optic line, each of the control modules including a WDM drop interconnected between the fiber optic line and a respective one of the well tools;
- and
- multiple optoelectric converters, each of the opto-electric converters being interconnected between a respective one of the control modules and the respective one of the well tools, and
- wherein each of the control modules is responsive to one of multiple optical wavelength bands transmitted through the fiber optic line to cause light to be transmitted to the respective opto-electric converter and thereby cause electrical power to be supplied to the respective well tool.
2 more elements
A well tool control system for selectively supplying electrical power to multiple electrical power consuming well tools in a subterranean well, the system comprising:
- a fiber optic line extending in the well;
- multiple control modules interconnected to the fiber optic line;
- and
- multiple opto-electric converters, each of the opto-electric converters being interconnected between a respective one of the control modules and a respective one of the well tools,
- wherein each of the control modules is responsive to one of multiple optical wavelength bands transmitted through the fiber optic line to cause light to be transmitted to the respective opto-electric converter and thereby cause electrical power to be supplied to the respective well tool,
- wherein the multiple optical wavelength bands are transmitted simultaneously through the fiber optic line, and
- further comprising multiple tunable filters and a first optical coupler interconnected to the fiber optic line, the first optical coupler receiving separate optical wavelength bands from the multiple tunable filters.
4 more elements
A well tool control system for selectively supplying electrical power to multiple electrical power consuming well tools in a subterranean well, the system comprising:
- a fiber optic line extending in the well;
- multiple control modules interconnected to the fiber optic line;
- and
- multiple opto-electric converters, each of the opto-electric converters being interconnected between a respective one of the control modules and a respective one of the well tools,
- wherein each of the control modules is responsive to one of multiple optical wavelength bands transmitted through the fiber optic line to cause light to be transmitted to the respective opto-electric converter and thereby cause electrical power to be supplied to the respective well tool,
- wherein the multiple optical wavelength bands are transmitted simultaneously through the fiber optic line,
- further comprising an optical coupler interconnected to the fiber optic line, the optical coupler receiving separate optical wavelength bands from multiple lasers, and
- wherein at least one of the multiple lasers is a tunable laser.
5 more elements
A well tool control system for selectively supplying electrical power to multiple electrical power consuming well tools in a subterranean well, the system comprising:
- a fiber optic line extending in the well;
- multiple control modules interconnected to the fiber optic line;
- and
- multiple opto-electric converters, each of the opto-electric converters being interconnected between a respective one of the control modules and a respective one of the well tools,
- wherein each of the control modules is responsive to one of multiple optical wavelength bands transmitted through the fiber optic line to cause light to be transmitted to the respective opto-electric converter and thereby cause electrical power to be supplied to the respective well tool, and
- wherein the well tools are data storage devices.
3 more elements
A well tool control system for selectively supplying electrical power to multiple electrical power consuming well tools in a subterranean well, the system comprising:
- a fiber optic line extending in the well;
- multiple control modules interconnected to the fiber optic line;
- and
- multiple opto-electric converters, each of the opto-electric converters being interconnected between a respective one of the control modules and a respective one of the well tools,
- wherein each of the control modules is responsive to one of multiple optical wavelength bands transmitted through the fiber optic line to cause light to be transmitted to the respective opto-electric converter and thereby cause electrical power to be supplied to the respective well tool, and
- wherein the well tools are devices having programmed functions, each of the devices performing its respective function in response to electrical power being supplied thereto.
3 more elements
A well tool control system for selectively supplying electrical power to multiple electrical power consuming well tools in a subterranean well, the system comprising:
- a fiber optic line extending in the well;
- multiple control modules interconnected to the fiber optic line;
- and
- multiple opto-electric converters, each of the opto-electric converters being interconnected between a respective one of the control modules and a respective one of the well tools,
- wherein each of the control modules is responsive to one of multiple optical wavelength bands transmitted through the fiber optic line to cause light to be transmitted to the respective opto-electric converter and thereby cause electrical power to be supplied to the respective well tool, and
- further comprising at least one sensor interconnected in the fiber optic line.
3 more elements
Dependencies are inferred from the claim text.