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Development of the watertight system for mechanical energy transfer using permanent magnets

UDK: 622.276.5.05
Key words: energy conversion, oil, gas, watertight system, turbine, mechanical energy
Authors: U.A. Sazonov, M.A. Mokhov, V.V. Bondarenko (Gubkin Russian State University of Oil and Gas (National Research University), RF, Moscow)

The reduction of energy consumption for oil and gas production and processing is one of the important objectives of the fields development. More rational utilization of the compressed gas energy helps to solve this problem. Compressed gas energy might be converted to heat or electrical energy. Conversion process might be divided into several stages and one of these stages considers conversion of the kinetic energy of the gas stream to mechanical energy. Gas turbine which is connected to the pump or electrical generator via transmission is used at this stage of energy conversion, Transmission is used for mechanical energy transfer meeting the requirements aimed at preventing gas leakage to the atmosphere. Watertight system for mechanical energy transfer might be developed with usage of magnet coupling based on permanent magnets and equipped with watertight dividing screen.

Each half of the coupling is usually equipped with permanent magnets. Within the scope of this study new coupling design is considered where only one half of the coupling is equipped with permanent magnet. Second half of the coupling is equipped with steel rollers which are used as magnetic circuit. In the system where compressed gas energy is converted to heat energy, steel rollers work in conditions of high temperature while permanent magnets work in the zone with lower temperature. Technical objective is to provide more favorable conditions for permanent magnets work what will result in better reliability of the whole system.

Main area of the application of watertight system being developed deals with oil and gas production. Moreover, developed technical solutions might be used when designing new eco-friendly equipment such as latching equipment, controlling equipment for the pipelines, separation equipment, pumping and compressing equipment and etc.

References

1. US patent no. 4850818, Corrosion-resistant magnet pump, Inventor:

Masayuki Kotera, 1989, URL: http://www.freepatentsonline.com/

4850818.html

2. US patent no. 5066200, Double containment pumping system for pumping

hazardous materials, Inventor: Kazuo Ooka, 1991, URL: http://www.freepatentsonline.

com/5066200.html

3. US patent no. 5201642, Magnetic drive pump, Inventor: Hinckley Ch.J.,

1993, URL: http://www.freepatentsonline.com/5201642.html

4. US patent no. 7922464, Magnetic drive pump, Inventor: Kazunari Adachi,

2011, URL: http://www.freepatentsonline.com/7922464.html

5. US patent no. 20040131485, Sealed magnetic drive sealless pump, Inventor:

Chi-wei Shi, 2004, URL: http://www.freepatentsonline.com/y2004/

0131485.html

6. US patent no. 4678409, Multiple magnetic pump system, Inventor: Toshio

Kurokawa, 1987, URL: http://www.freepatentsonline.com/4678409.html

7. US patent no. 4850821, Multiple magnet drive pump, Inventor: Sakai Naotake,

1989, URL: http://www.freepatentsonline.com/4850821.html

8. US patent no. 20050095149, Magnetic drive pump, Inventor: Seiya Tanaka,

2005, URL: http://www.freepatentsonline.com/y2005/0095149.html

9. Sazonov I.A., Mokhov M.A., Design of thermoelectric generators for oil and

gas production systems, Indian Journal of Science and Technology, 2015,

V.8(30), pp. 1–12, URL: http://www.indjst.org/index.php/indjst/article/view-

File/81878/63184

10. Sazonov Iu.A., Mokhov M.A., Frankov M.A., Biktimirova D.R., Studying issues

of compressed gas energy recovery, Indian Journal of Science and Technology,

2016, May, V.9 (19), pp. 1–7.

11. Bondarenko V.V., Mokhov M.A., Sazonov Yu.A., Heat generators modeling

for oil and gas production systems (In Russ.), Neftyanoe khozyaystvo = Oil Industry,

2015, no. 12, pp. 127–129.

12. Utility patent no. 160267, Magnitnaya mufta (Magnetic clutch), Inventors:

Sazonov Yu.A., Mokhov M.A., Gruzintsev D.A., Basharov S.F.

The reduction of energy consumption for oil and gas production and processing is one of the important objectives of the fields development. More rational utilization of the compressed gas energy helps to solve this problem. Compressed gas energy might be converted to heat or electrical energy. Conversion process might be divided into several stages and one of these stages considers conversion of the kinetic energy of the gas stream to mechanical energy. Gas turbine which is connected to the pump or electrical generator via transmission is used at this stage of energy conversion, Transmission is used for mechanical energy transfer meeting the requirements aimed at preventing gas leakage to the atmosphere. Watertight system for mechanical energy transfer might be developed with usage of magnet coupling based on permanent magnets and equipped with watertight dividing screen.

Each half of the coupling is usually equipped with permanent magnets. Within the scope of this study new coupling design is considered where only one half of the coupling is equipped with permanent magnet. Second half of the coupling is equipped with steel rollers which are used as magnetic circuit. In the system where compressed gas energy is converted to heat energy, steel rollers work in conditions of high temperature while permanent magnets work in the zone with lower temperature. Technical objective is to provide more favorable conditions for permanent magnets work what will result in better reliability of the whole system.

Main area of the application of watertight system being developed deals with oil and gas production. Moreover, developed technical solutions might be used when designing new eco-friendly equipment such as latching equipment, controlling equipment for the pipelines, separation equipment, pumping and compressing equipment and etc.

References

1. US patent no. 4850818, Corrosion-resistant magnet pump, Inventor:

Masayuki Kotera, 1989, URL: http://www.freepatentsonline.com/

4850818.html

2. US patent no. 5066200, Double containment pumping system for pumping

hazardous materials, Inventor: Kazuo Ooka, 1991, URL: http://www.freepatentsonline.

com/5066200.html

3. US patent no. 5201642, Magnetic drive pump, Inventor: Hinckley Ch.J.,

1993, URL: http://www.freepatentsonline.com/5201642.html

4. US patent no. 7922464, Magnetic drive pump, Inventor: Kazunari Adachi,

2011, URL: http://www.freepatentsonline.com/7922464.html

5. US patent no. 20040131485, Sealed magnetic drive sealless pump, Inventor:

Chi-wei Shi, 2004, URL: http://www.freepatentsonline.com/y2004/

0131485.html

6. US patent no. 4678409, Multiple magnetic pump system, Inventor: Toshio

Kurokawa, 1987, URL: http://www.freepatentsonline.com/4678409.html

7. US patent no. 4850821, Multiple magnet drive pump, Inventor: Sakai Naotake,

1989, URL: http://www.freepatentsonline.com/4850821.html

8. US patent no. 20050095149, Magnetic drive pump, Inventor: Seiya Tanaka,

2005, URL: http://www.freepatentsonline.com/y2005/0095149.html

9. Sazonov I.A., Mokhov M.A., Design of thermoelectric generators for oil and

gas production systems, Indian Journal of Science and Technology, 2015,

V.8(30), pp. 1–12, URL: http://www.indjst.org/index.php/indjst/article/view-

File/81878/63184

10. Sazonov Iu.A., Mokhov M.A., Frankov M.A., Biktimirova D.R., Studying issues

of compressed gas energy recovery, Indian Journal of Science and Technology,

2016, May, V.9 (19), pp. 1–7.

11. Bondarenko V.V., Mokhov M.A., Sazonov Yu.A., Heat generators modeling

for oil and gas production systems (In Russ.), Neftyanoe khozyaystvo = Oil Industry,

2015, no. 12, pp. 127–129.

12. Utility patent no. 160267, Magnitnaya mufta (Magnetic clutch), Inventors:

Sazonov Yu.A., Mokhov M.A., Gruzintsev D.A., Basharov S.F.



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