Microgenerator for hydrocarbon producing systems

• US 9,083,213 B1
• Filed: 01/09/2014
• Issued: 07/14/2015
• Est. Priority Date: 01/09/2014
• Status: Expired due to Fees

• Current Assignee: Intevep, S.A. (PDVSA Gas SA)
• Original Assignee: Intevep, S.A. (PDVSA Gas SA)
• Inventors: Cliz, Nestor, Fuenmayor, Alexander, Rivas, Oswaldo, Hernndez, Al, Romero, Jos
• Primary Examiner(s): Waks, Joseph
• Application Number:
  US14/150,811
• Publication Number:
  US 20150194860A1
• Time in Patent Office: 551 Days
• Field of Search: 290/54
• US Class Current: 1/1
• CPC Class Codes: E21B 41/0085 Adaptations of electric power generating means for use in boreholes
• CPC Class Codes: H02K 7/1823 structurally associated with turbines or similar engines

Abstract

A microgenerator for use in petroleum distribution systems includes a casing defining an interior portion and an exterior portion. The casing has an opposed first support wall and second support wall coupled within an inner diameter of a cylinder containment wall. At least one fluid inlet penetrates the cylinder containment wall. The fluid inlet is fluidly coupled to an energized fluid source. At least one nozzle is fluidly coupled to the fluid inlet. The nozzle is configured to accelerate the fluid into the interior portion. At least one fluid outlet penetrates the cylinder containment wall. The fluid outlet is configured to discharge the fluid from said interior portion of the casing. An impulse turbine is located within the interior portion. The turbine has a first stator coupled to the first support wall and a second stator coupled to the second support wall opposite the first stator. A rotor is rotatably mounted between the first stator and the second stator on a shaft at a central axis of the rotor. The rotor includes an array of turbine blades integral to the rotor at an outer perimeter of the rotor. The nozzle is aligned to direct the fluid against the array of turbine blades to rotate the rotor about the central axis. A set of permanent magnets are fixed into the rotor proximate the turbine blades between the perimeter and the shaft. At least one electromagnetic core and coil assembly is fixed into the first stator arranged in a periphery about the central axis and is electromagnetically coupled to the set of permanent magnets and is configured to generate an electric current in cooperation with the set of permanent magnets.

Claims

1. A microgenerator for use in petroleum distribution systems comprising:

a casing defining an interior portion and an exterior portion, said casing having opposed first support wall and second support wall coupled within an inner diameter of a cylinder containment wall;

at least one fluid inlet penetrating said cylinder containment wall, said fluid inlet fluidly coupled to an energized fluid source;

said energized fluid source selected from the group consisting of a pressurized hydrocarbon, injection fluid, pneumatic control fluid, gas from a gas lift system, steam, or petroleum liquid gas mixture;

at least one nozzle fluidly coupled to said fluid inlet, said nozzle configured to accelerate said energized fluid into said interior portion;

at least one fluid outlet penetrating said cylinder containment wall, said fluid outlet configured to discharge said petroleum fluid from said interior portion of said casing;

an impulse turbine within said interior portion, said impulse turbine having a first stator coupled to said first support wall and a second stator coupled to said second support wall opposite said first stator, a rotor rotatably mounted between said first stator and said second stator on a shaft at a central axis of said rotor, said rotor including an array of turbine blades integral to said rotor at an outer perimeter of said rotor;

said at least one nozzle aligned to direct said petroleum fluid against said array of turbine blades to rotate said rotor about said central axis;

a set of permanent magnets fixed into said rotor proximate said turbine blades between said perimeter and said shaft; and

at least one electromagnetic core and coil assembly fixed into said first stator arranged in a periphery about said central axis and electromagnetically coupled to said set of permanent magnets configured to generate an electric current in cooperation with said set of permanent magnets.

2. The microgenerator of claim 1, further comprising:

an electrical conduit disposed through said first or second wall or both walls electrically coupled to said electromagnetic core configured to transmit electricity from said interior portion to said exterior portion.

3. The microgenerator of claim 1, wherein:

said at least one nozzle is aligned to direct said energized fluid against said array of turbine blades transverse to said central axis.

4. The microgenerator of claim 1, wherein:

said shaft is supported on bearings mounted to said first stator and said second stator within said interior.

5. The microgenerator of claim 1, wherein said shaft rotates freely in the absence of mechanical rotary output.

6. The microgenerator of claim 1, wherein said pressurized petroleum fluid source includes a fluid bypass from an oil well system.

7. The microgenerator of claim 1, wherein said electromagnetic core is configured to generate an alternating electric current selected from the group consisting of one phase alternating current, two phase alternating current and three phase alternating current.

8. The microgenerator of claim 1, comprising:

a plurality of said impulse turbines mechanically coupled along a common axis within said interior portion, a plurality of said nozzles fluidly coupled to each of said impulse turbines.