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Slimholes drilling and production: lessons learned and perspectives

Authors: Sh.F. Takhautdinov, R.S. Khisamov, I.A. Nuriev, A.S. Sultanov, A.M. Evdokimov (Tatneft OAO)
This paper discusses the results of drilling of slim holes on the fields operated by Tatneft Company. Compared with drilling of conventional wells, slim holes display a number of benefits: decreased cuttings volume, mud and tubulars consumption; amount of cement required for casing cementing is reduced; drilling costs are reduced by 20-30 %; wells can be drilled with mobile drilling rigs.
This paper discusses the results of drilling of slim holes on the fields operated by Tatneft Company. Compared with drilling of conventional wells, slim holes display a number of benefits: decreased cuttings volume, mud and tubulars consumption; amount of cement required for casing cementing is reduced; drilling costs are reduced by 20-30 %; wells can be drilled with mobile drilling rigs.


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