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Choosing drilling fluid for well making in complicated mining and geological conditions

Authors: R.M. Vafin (Nafta-Service LLC, RF, Almetyevsk), A.I. Burenkov (ROSPAN INTERNATIONAL CJSC, RF, New Urengoy), A.A. Saltykova (OIL INDUSTRY Publishing House CJSC, RF, Moscow), S.A. Pankov, V.A. Churkin (Ural State Mining University, RF, Ekaterinburg), O.A. Nechaeva (Samara State Technical University, RF, Samara)
E-mail: nechaevaoa@gmail.com
Key words: drilling fluid, wall packing, flush fluid, well making.

Developing effective drilling fluid systems for wiring holes in complicated miningand geological conditions that sustain terrigenous clay, unconsolidatedsand rocks and has natural permeability is an important task. In this regard,the important role is played by physical and chemical methods for drilling unstablefluid-saturated horizons with alternating intervals of wells, which is tosecure mudding walls, preventing passage of fluid from the reservoir int thewellbore. Designed gel solution influences the formation of lasting colmatingscreen having a high coefficient of reliability, which prevents the penetrationof mud filtrate into the formation, increases the stability of the wellbore whiledrilling shale and limits the flow of fluid from the reservoir into the wellbore.

References
1. Basarygin Yu.M., Bulatov A.I., Proselkov Yu.M., Oslozhneniya i avarii pri bureniineftyanykh i gazovykh skvazhin (Complications and accidents in drillingoil and gas wells), Moscow: Nedra Publ., 2001, 677 p.
2. Gorodnov V.D., Neftyanoe khozyaystvo – Oil Industry, 1964, no. 4, pp. 14-18.
3. Gorodnov V.D., Materialy NTS po glubokomu bureniyu (Proceedings of theTechnical Council on deep drilling), 1973, V. 17.
4. Ryazanov Ya.A., Entsiklopediya po burovym rastvoram (Encyclopedia ofmud), Orenburg: Letopis' Publ., 2005, 664 p.
5. Tsivinskiy D.N., Primenenie metoda polnogo faktornogo eksperimenta vneftegazovom dele (Application of the full factorial experiment in the oil andgas business), Samara: SamGTU, 2002, 170 p.
E-mail: nechaevaoa@gmail.com
Key words: drilling fluid, wall packing, flush fluid, well making.

Developing effective drilling fluid systems for wiring holes in complicated miningand geological conditions that sustain terrigenous clay, unconsolidatedsand rocks and has natural permeability is an important task. In this regard,the important role is played by physical and chemical methods for drilling unstablefluid-saturated horizons with alternating intervals of wells, which is tosecure mudding walls, preventing passage of fluid from the reservoir int thewellbore. Designed gel solution influences the formation of lasting colmatingscreen having a high coefficient of reliability, which prevents the penetrationof mud filtrate into the formation, increases the stability of the wellbore whiledrilling shale and limits the flow of fluid from the reservoir into the wellbore.

References
1. Basarygin Yu.M., Bulatov A.I., Proselkov Yu.M., Oslozhneniya i avarii pri bureniineftyanykh i gazovykh skvazhin (Complications and accidents in drillingoil and gas wells), Moscow: Nedra Publ., 2001, 677 p.
2. Gorodnov V.D., Neftyanoe khozyaystvo – Oil Industry, 1964, no. 4, pp. 14-18.
3. Gorodnov V.D., Materialy NTS po glubokomu bureniyu (Proceedings of theTechnical Council on deep drilling), 1973, V. 17.
4. Ryazanov Ya.A., Entsiklopediya po burovym rastvoram (Encyclopedia ofmud), Orenburg: Letopis' Publ., 2005, 664 p.
5. Tsivinskiy D.N., Primenenie metoda polnogo faktornogo eksperimenta vneftegazovom dele (Application of the full factorial experiment in the oil andgas business), Samara: SamGTU, 2002, 170 p.


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