Data communications system
AssigneeZenith Oilfield Technology Limited
InventorDavid Sirda Shanks
Life of this patent
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Abstract
A three phase power system provided with a data communications system and associated method of data transmission for transmitting data over a three phase power system between a surface and a sub-surface location for an arrangement such as an oil field electrical submersible pump, the data communications system comprising a cabled connection from a surface system to a sub-surface system; a power module coupled to the cabled connection via a tuned circuit tuned to a first frequency, a data signal module coupled to the cabled connection via a tuned circuit tuned to a second frequency, independently of the coupled power module so as to minimise interference between the power signal module and data signal module during operation.
Claims20
A data communications system for transmitting data over a three phase power system between a surface and a sub-surface location, the data communications system comprising:
- a surface system module;
- a sub-surface system module;
- and
- a cable connection between the surface system module and the sub-surface system module,
- wherein at least one of the surface system module and the subsurface system module is provided with a power module and a data signal module such that the power module and the data signal module are coupled to the cable connection independently of one another via tuned circuits which are tuned to different frequencies.
A method of data transmission for transmitting data over a three phase power system between a surface and a sub-surface location, the method comprising:
- providing a cabled connection from the surface to a sub-surface system;
- coupling at least one AC power module via a tuned circuit tuned at a first frequency to the cabled connection;
- and
- coupling at least one data signal module via a tuned circuit tuned at a second frequency to the cabled connection independently of the at least one coupled AC power module.
Dependencies are inferred from the claim text.