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INVENTION
Russian Federation Patent RU2271465
METHOD FOR PRODUCING ELECTRICITY WITH NATURAL ENERGY
Imprisoned in the earth formation with high blood pressure
Name of the inventor: Buslaev Viktor Fedorovich (RU); Vdovenko Basil L. (RU); Nor Alexey V.
The name of the patentee: Ukhta State Technical University (RU)
Address for correspondence: 169300, Republic of Komi, Ukhta, st. Day, 13, Ural State Technical University, the patent group of HNI
Starting date of the patent: 2002.01.11
A method for generating electricity using natural energy contained in the earth formations with high pressure. The method includes generating electricity downhole turbine arrangement fed with high-pressure agent, and an electric cable. In the cased wellbore in the interval between the development of high pressure reservoir and low pressure reservoir absorbing mounted turbine connected via pipes to an electric energy generator, flow agent is carried out in a high pressure reservoir and low pressure reservoir to the surface. Flow control agent in the annular tube space and perform a control valve located at the bottom of the turbine generator assembly, and a hole between the turbine casing and the pipe connecting the pipe with the annular space. The method allows to efficiently produce electricity using the energy contained in reservoirs with high pressure.
DESCRIPTION OF THE INVENTION
The invention relates to the development of hydrocarbon deposits and create electricity using natural factors.
There is a method of production of electrical energy for geophysical instruments power RF patent №2172827, 7MPK E 21 B 47/00, H 02 K 5/12, publ. ON №24, 27.08.2001, at where the energy source is a stream of washing liquid supplied to wash the mud pump wells.
The disadvantages of this method are the use of synthetic mud pump energy without the use of natural factors and reproduction of electrical energy.
The closest to the proposed method is implemented by the device speaker RF №1820021, 5 F 03 MKI in 13/00, publ. ON №21, p. 81, 1993, which is used to produce electricity turbine and generator in artesian wells, where under the influence of hydraulic energy produced water is the transformation of hydraulic energy into electrical energy. Its drawback is that this method is implemented in the extraction of water from the well, the need for which is not relevant to the wetland environment of the North Sea, and the spout formation water can disrupt the natural balance of water and environmental pollution. and disadvantages are low completeness of extraction of energy from produced water artesian well and its use, the high cost of electricity production.
The invention solves the problem of the use of natural energy due to the difference of energy (pressure) of the fluid reservoir and an overflow reservoir or gas from the high pressure in the low pressure reservoir, in order to improve power generation efficiency by making use of the energy contained in high pressure formations.
To achieve the said objectives, the proposed method includes a turbine arrangement in a well into which is supplied a high pressure agent (which may be liquid or gas), the generator and the cable, the turbine connected via pipes to a generator set in a cased borehole in the range between exhibiting high pressure reservoir and low pressure reservoir absorbing, then flow agent is carried out in a high pressure reservoir and low pressure reservoir to the surface.
Flow control agent in the annular tube space and perform a control valve located at the bottom of the turbine generator assembly, and also due to the opening between the turbine casing and the pipe connecting the pipe with the annular space.
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The proposed method is explained in the drawing, which shows the well formation with the opening of the high-pressure reservoir and opening the low pressure in the range between layers installed turbine 1, which is connected with the generator 2 via pipe 3, performing the function of the shaft. overflow management agent passing through the turbine, the flow separation is carried out using a high-pressure reservoir control valve 4-way valve. For cleaning fluid flow in the lower part of the turbine is a filter 5. The flow of liquid passing through the turbine, out from the opening 6 into the annular space. If necessary, the high-pressure reservoir fluid production opens the valve 7, and the value of the pressure and the flow is controlled by adjusting the throttle 8. |
Example of embodiment
On Layavozhskom gas condensate field Nenets district reservoir pressure Devonian sediments at a depth of 4000 m was 65.0 MPa, the daily production rate of the produced water is 5,000 m 3 / day. Reservoir pressure carboxylic reservoir is at a depth of 2500 m 25.0 MPa. It is necessary in the development of deposits of carboxylic ensure the maintenance of reservoir pressure through the overflow reservoir water from the Devonian.
Mizhplastovi pressure drop for the fluid column and hydraulic resistance of 20.0 MPa. The hydraulic turbine capacity is estimated by the formula:
When you install the turbine in the interval between the layers of the full movement of the flow through the turbine efficiency at Equal to 0.5, power generation will be 567 kW / day per well.
CLAIM
- A method of producing energy comprising placing turbines in a borehole which is supplied a high pressure agent generator to the cable, characterized in that in the cased well in the interval between the development of high pressure reservoir and the absorbent reservoir low pressure set turbine connected via pipes with an electric generator energy flow agent is carried out in a high pressure reservoir and low pressure reservoir to the surface.
- A method according to claim 1, characterized in that the flow regulating agent in the pipe and the annular space is carried out a control valve located at the bottom of the turbine generator assembly, and an opening between the housing and the turbine and the pipe connecting the pipe with the annular space.
print version
Publication date 23.11.2006gg
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