Electric energy generation method

FIELD: power engineering.

SUBSTANCE: method is designed for generating electric energy using natural energy enclosed in high pressure formation. Proposed method includes placing of turbine in well to which high-pressure agent is delivered, and electric generator with cable. Turbine is installed in encased well between showing high-pressure formation and intake low-pressure formation. Turbine is connected by pipes with electric energy generator. Flow of agent from high-pressure formation into low-pressure formation and to surface is provided. Regulation of agent flow into annulus and tube space is provided by distributing valve arranged in lower part of assembly of turbogenerator and hole between housing of turbine and pipe connecting tube space with annulus.

EFFECT: provision of effective generation of electric energy using energy contained in high-pressure formations.

2 cl, 1 dwg

 

The invention relates to the field of hydrocarbon production and generate electricity using natural factors.

A method of producing electrical energy for supply of geophysical instruments RF Patent №2172827, NC E 21 IN 47/00, H 02 To 5/12, publ. ABOUT No. 24, 27.08.2001, where the energy source is a stream of washing liquid supplied to the drilling pump for wash well.

The disadvantages of this method are the use of artificial energy mud pump, without the use of natural factors and reproduction of electrical energy.

Closest to the proposed method is implemented by the device, the speaker of the Russian Federation No. 1820021, 5 MCI F 03 In 13/00, publ. ABOUT No. 21, S. 81, 1993, where to get the electricity used turbine and generator in an artesian well, where under the action of hydraulic energy produced water is the transformation of hydraulic energy into electrical energy. The disadvantage is that this method is implemented in the extraction of water from wells, which are not relevant to the waterlogged conditions of the North and the sea, and the spout formation water may cause disruption of natural water balance and environmental pollution. Also the disadvantages include the low completeness of extraction of energy from the produced water Artes the well bore and its use, the high cost of electricity.

The invention solves the problem of the use of natural energy due to the difference of energy (pressure) of the reservoirs and the flow of liquid or gas from the reservoir with high pressure into the reservoir low pressure, with the aim of improving the efficiency of generating electricity by using the energy contained in the layers with high blood pressure.

To achieve the above objectives, the proposed method comprising placing a turbine in the well that serves the agent high pressure (this can be liquid or gas), generator and cable, and a turbine that is connected via pipes to the generator, set in a cased borehole in the interval between showing the formation of a high pressure and an absorbing layer of low pressure, then perform the migration of the agent from the reservoir to the high pressure reservoir to the low pressure on the surface.

Regulation of agent threads in the annulus and tube space carry out valve located at the bottom of the turbine generator Assembly, and through the openings between the turbine housing and the pipe, connecting pipe, the annular space with.

The proposed method is illustrated by a drawing, which shows well with the open reservoir of high pressure and opened by a layer of low pressure, in the interval is between the layers of the installed turbine 1, which is connected to the generator 2 through the pipe 3, performs the function of the shaft. The flow control agent passing through the turbine, is the separation of flow from the reservoir to the high pressure using the adjusting valve of the distributor 4.

For cleaning of fluid flow in the lower parts of the turbines installed the filter 5. The fluid flow passing through the turbine, comes out of the holes 6 in the annulus. If necessary, the extraction fluid reservoir high pressure opens the valve 7 and the pressure and flow is controlled by adjusting the throttle 8.

An example of a specific implementation.

On Laviska gas condensate field in Nenets pressure Devonian sediments at a depth of 4000 m is 65,0 MPa, the daily yield of produced water is 5000 m3/day. Reservoir pressure carbon reservoir is at a depth of 2500 m 25,0 MPa. It is necessary in the process of developing a carbon reservoir to maintain reservoir pressure by flow of produced water from Devonian deposits.

Milatovic differential pressure considering the liquid column and the flow resistance is 20.0 MPa. The hydraulic capacity of the turbines is estimated by the formula:

When installing turbines in the interval between reservoirs at full lane is the displacement of the flow through the turbine with efficiency, equal to 0.5, the power output will be 567 kW/day per well.

1. The method of obtaining energy, including the placement of turbines in the well that serves the agent high-pressure generator with cable, characterized in that in the cased borehole in the interval between showing the formation of a high pressure and an absorbing layer of a low-pressure turbine set, connected through pipes to a generator of electric energy, implement the flow of the agent from the reservoir to the high pressure reservoir to the low pressure on the surface.

2. The method according to claim 1, characterized in that the regulation of agent threads in the annular and tubular space carry out valve located at the bottom of the turbine generator Assembly, and the gap between the turbine housing and the pipe, connecting pipe, the annular space with.



 

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FIELD: power engineering.

SUBSTANCE: method is designed for generating electric energy using natural energy enclosed in high pressure formation. Proposed method includes placing of turbine in well to which high-pressure agent is delivered, and electric generator with cable. Turbine is installed in encased well between showing high-pressure formation and intake low-pressure formation. Turbine is connected by pipes with electric energy generator. Flow of agent from high-pressure formation into low-pressure formation and to surface is provided. Regulation of agent flow into annulus and tube space is provided by distributing valve arranged in lower part of assembly of turbogenerator and hole between housing of turbine and pipe connecting tube space with annulus.

EFFECT: provision of effective generation of electric energy using energy contained in high-pressure formations.

2 cl, 1 dwg

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