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Process control of downhole motor operation during oil and gas well construction

Authors: A.V. Vervekin, V.M. Plotnikov (Perm National Research Polytechnical University, RF, Perm), V.I. Molodilo VNIIBT-Drilling tools Ltd., RF, Perm)

Key words: oil and gas well drilling, positive displacement motor, differential pressure, control, hydraulic power, torque, feed off control bit, drilling technology, electric powder brake, drilling process automation, rate of penetration, drilling mode.

The article considers application technology and operation peculiarities of downhole motors. Essential rules and requirements to the process control of downhole motor operation have been highlighted. On the basis of main and new principles it has been proposed to automate technological drilling process as per the basic circuit arrangement of the feed off control, taking into consideration a new elementary base and current achievements. Also the article includes stages of implementation technology, results of the first stage. On the research diagrams of the geotechnical study examples of interval drilling with and without electric powder brake have been considered. The drilling technology analysis with the electric powder brake has showed importance of operations renewal on a wide range of application of the feed off control.

References
1. Patent no. 2013531 RF, MPK E21V44/00, Boring tool feed controller, Inventors: Molodilo V.I., Litvinov I.N.
2. Vervekin A.V., Plotnikov V.M., Molodilo V.I., Stroitel'stvo neftyanykh i gazovykh skvazhin na sushe i na more, 2013, no. 1, pp. 16-19;
3. Molodilo V.I., Korotaev S.N., D'yakonov G.A., Vestnik Assotsiatsii burovykh podryadchikov, 2013, no. 3, pp. 28-33;
4. Certificate of authorship no. 1128646, Sposob kontrolya rezhima raboty vintovogo dvigatelya v zaboynykh
usloviyakh (Method of control the operating mode of the screw engine in downhole conditions), Authors: Baldenko D.F., Bikchurin T.N., Vadetskiy Yu.V., Gusman M.T., Kaplun V.A. et al.
5. Molodilo V.I., Korotaev Yu.A., Medvedev A.Yu., Avtomatizatsiya, telemekhanizatsiya i svyaz' v neftyanoy
promyshlennosti, 2002, no. 1-2, pp. 17-21;

6. Vervekin A.V., Plotnikov V.M., Molodilo V.I., Neftepromyslovoe delo, 2013, no. 9, pp. 66-69. 

Key words: oil and gas well drilling, positive displacement motor, differential pressure, control, hydraulic power, torque, feed off control bit, drilling technology, electric powder brake, drilling process automation, rate of penetration, drilling mode.

The article considers application technology and operation peculiarities of downhole motors. Essential rules and requirements to the process control of downhole motor operation have been highlighted. On the basis of main and new principles it has been proposed to automate technological drilling process as per the basic circuit arrangement of the feed off control, taking into consideration a new elementary base and current achievements. Also the article includes stages of implementation technology, results of the first stage. On the research diagrams of the geotechnical study examples of interval drilling with and without electric powder brake have been considered. The drilling technology analysis with the electric powder brake has showed importance of operations renewal on a wide range of application of the feed off control.

References
1. Patent no. 2013531 RF, MPK E21V44/00, Boring tool feed controller, Inventors: Molodilo V.I., Litvinov I.N.
2. Vervekin A.V., Plotnikov V.M., Molodilo V.I., Stroitel'stvo neftyanykh i gazovykh skvazhin na sushe i na more, 2013, no. 1, pp. 16-19;
3. Molodilo V.I., Korotaev S.N., D'yakonov G.A., Vestnik Assotsiatsii burovykh podryadchikov, 2013, no. 3, pp. 28-33;
4. Certificate of authorship no. 1128646, Sposob kontrolya rezhima raboty vintovogo dvigatelya v zaboynykh
usloviyakh (Method of control the operating mode of the screw engine in downhole conditions), Authors: Baldenko D.F., Bikchurin T.N., Vadetskiy Yu.V., Gusman M.T., Kaplun V.A. et al.
5. Molodilo V.I., Korotaev Yu.A., Medvedev A.Yu., Avtomatizatsiya, telemekhanizatsiya i svyaz' v neftyanoy
promyshlennosti, 2002, no. 1-2, pp. 17-21;

6. Vervekin A.V., Plotnikov V.M., Molodilo V.I., Neftepromyslovoe delo, 2013, no. 9, pp. 66-69. 



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