Researches of BHA differential sticking in well and action development to prevent this complication

Authors: Yu.M. Gerzhberg (Ukhta State Technical University, RF, Ukhta)

Key words: well, BHA, differencial sticking, prevention.

This work is devoted to prevent BHA differential stickingas a result of its sticking to well`s wall. We give the methodology and some research results of various factors influence on BHA sticking to a crust by means of contact area determination and the interaction force of pipes with a crust. We show the most significant actions to prevent BHA differential stickingof the boring tool when the boring tool stops working.

References

1. Gerzhberg Yu.M., Bel'skiy D.G., Kirshin V.I. et al., Proceedings of XVI International

Scientific and Practical Conference “Reagenty i materialy,

tekhnologicheskie sostavy i burovye zhidkosti dlya stroitel'stva, ekspluatatsii

i kapital'nogo remonta neftyanykh, gazokondensatnykh i gazovykh

skvazhin” (Reagents, materials and drilling liquids for the construction,

maintenance and overhaul of oil, gas and gas condensate wells), Suzdal',

2012, pp. 196-204.

2. The certificate of official registration of computer programs no.

2006610570, Programma EVM. Programmnyy kompleks dlya proektirovaniya

optimal'nogo sostava buril'noy kolonny (A computer program. The software

package for the design of the optimal composition of the drill string): authors:

Gerzhberg Yu.M., Charkov V.D., 2006.

3. Gerzhberg Yu.M., Kirshin V.I., Inzhener-neftyanik, 2011, no. 4, pp. 13-17.

4. Gerzhberg Yu.M., Kirshin V.I., Inzhener-neftyanik, 2013, no. 1, pp. 36-40.

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